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Gallery, Projects and General => Project Logs => Topic started by: Doc on November 21, 2013, 08:21:06 PM

Title: Floating end mill holder.
Post by: Doc on November 21, 2013, 08:21:06 PM
  Well I decided to get a floating end mill holder made so I can sharpen some end mills up before starting up on my V-8 project again. Been wanting to build a sharpening set up for awhile so I'm going to give it a try. I'll be building or using the drawings for the book The Shop Wisdom Of Philip Duclos. I'll try to post some build info as I go along.
Title: Re: Floating end mill holder.
Post by: Doc on November 22, 2013, 07:19:44 PM
Well the first thing to work on is the spindle housing. I just happened to have a piece of 2 x 2 steel not sure what type though. So after cutting a chunk off I spark tested it and I believe it to be so 4320 and the way it cut was not in a normalized state so this may be a treat drilling the small holes.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB100012.jpg)
Ok squared up small holes next(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB100014.jpg)

Ok next mount in lathe and do the main bore, next time.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB110016.jpg)
Title: Re: Floating end mill holder.
Post by: Doc on November 23, 2013, 11:39:34 AM
Ok dialed in spindle housing block and proceeded to bore out spindle dia.


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB140019.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB140017.jpg)

 Bore finished out at 1.25 with about .0004 tapper in it. plans call for no more than .0002 so I am about double so if I run into trouble I'll finish hone it to get the tapper out. We shall see I'll turn up a practice spindle to check it out.
  Next will be the air grooves for this I will have to make a tool. I'm thinking I can grind up a piece of scrap carbide (don't throw scrap pieces of carbide away they come in handy) for the width and silver solder to a shank of some type. We shall see.
Title: Re: Floating end mill holder.
Post by: Doc on November 23, 2013, 01:57:26 PM
Ok ground up a piece of carbide and grabbed a 1/2 dia dowel pin.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB180021.jpg)

Set up on welding table after a good cleaning with some alcohol.


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB180022.jpg)

All soldered up ready to be sharpened.


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB230031.jpg)


Ready to give her a try.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB230035.jpg)
Title: Re: Floating end mill holder.
Post by: Doc on November 23, 2013, 03:30:51 PM
Well that went really well cutter cut great not trouble at all.
 Now to run up a practice spindle just to make sure things will work ok.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB180027.jpg)


finished grooves.


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB180030.jpg)


Title: Re: Floating end mill holder.
Post by: Doc on November 23, 2013, 06:22:25 PM
Well turned up a spindle out of a piece of 17-4 stainless I had on hand (not what I'm using for the final piece) and I turned it between centers and .0015 under the housing bore size. I put it in the housing and applied air and at 25 PSI I has success it floated and will work.
 So now I feel a little better about being able to get where I want to be with this.
  So now I will start on the sharpening pedestal it will be attached to. After that I will attempt to make up some cross slides and an adjustable grinding head. With some luck I'll be able to sharpen some of my dull end mills when I get things done.


PS
  Not sure anyone is interested in this or not but I'll keep chugging along.  Someone maybe thinking of or has done one before.
 Until tomorrow then, I'll get started on the rest of the build.
Title: Re: Floating end mill holder.
Post by: philf on November 23, 2013, 06:28:11 PM
PS
  Not sure anyone is interested in this or not but I'll keep chugging along.  Someone maybe thinking of or has done one before.
 Until tomorrow then, I'll get started on the rest of the build.

Doc,

I'm interested!

Cheers.

Phil.
Title: Re: Floating end mill holder.
Post by: dsquire on November 23, 2013, 09:15:04 PM
George

It looks like people aren't saying much but looking at the numbers, they are watching. Even though I may not build one I am sure that I will pick up some tips that will come in handy on some project.  :D :D

Cheers  :beer:

Don
256
Title: Re: Floating end mill holder.
Post by: Sid_Vicious on November 23, 2013, 09:51:44 PM
With over 250 views you can be sure there is a lot of people following what you are making.
I don't have enough experience with machining yet so I just keep my mouth shut and try to learn from others.
Title: Re: Floating end mill holder.
Post by: Pete W. on November 24, 2013, 05:25:48 AM
I'm looking.   :thumbup:   :thumbup:   :thumbup:  Be encouraged.
Title: Re: Floating end mill holder.
Post by: awemawson on November 24, 2013, 05:41:16 AM
I'm here, I've read every post, looked at every picture and I am here for the full event - keep them coming  :thumbup:

Andrew
Title: Re: Floating end mill holder.
Post by: paulmo101 on November 24, 2013, 09:21:20 AM
Hi

Great project I`m following and learning as we go.

Thanks for sharing

Paul
Title: Re: Floating end mill holder.
Post by: Doc on November 24, 2013, 10:54:20 AM
Ok I started the day by changing the way I'm going to make the pedestal and tilting mechanism. Instead of using square 2x3 tube I'm going to be using some aluminum 7075 t651. And putting in some hard bushings for the steel balls to ride in. One of the reasons if I were to use tubing I wouldn't be able to put in some bushings for the balls to ride in and the plan I have in mind I'll use the bushings to adjust the height so things will set level when put together. Not sure if this would matter but with a floating spindle it would most likely advance or retract when let go of. Not sure this would matter or not but to be on the safe side doing it this way I will be able to adjust the height of the bushing easily thus making the spindle run true and level.
 SO off to the shop and make some chips.
  And thanks for the come backs guys some times when I post and I see not response I start to thinking no one is all that interested in this so maybe I should quit bothering them.
Title: Re: Floating end mill holder.
Post by: flutedchamber on November 24, 2013, 12:53:42 PM
I'm watching, and learning.  You're never too old to learn. 
Title: Re: Floating end mill holder.
Post by: kayz1 on November 24, 2013, 01:58:20 PM
Me to watching, and learning I hope. Keep on keeping on. :ddb:
  Lyn.
Title: Re: Floating end mill holder.
Post by: Doc on November 24, 2013, 02:01:53 PM
Ok first block squared up to size.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB230015.jpg)


put in transfer screws in housing block to transfer hole pattern to the top mount block.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB230013.jpg)

holes drilled and counter bored from back side.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB230014.jpg)

Things were going good until oops I started to drill the hole for the finger mount and was on the wrong side darn! Now I have a scar so I went to work to fix it. turned up a little plug fro some scrap.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB240013.jpg)

Put plug in place and peened it over good.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB240014.jpg)

After I milled down the repair it was not to noticeable.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB240015.jpg)

Wel grab a bite to eat and back out to the shop.
Title: Re: Floating end mill holder.
Post by: Doc on November 24, 2013, 04:42:40 PM
Well I have the top mount block near completed put the bushing holes in set the heights and put the spring pocket in only thing left is a hardened slug for the cam pin to push against


Setting height of the 2 balls unit will swivel on.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB240012.jpg)

Spring pocket done.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB240016.jpg)


Bottom mount base squared up and roughed out.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB230016.jpg)

So that will be it for today my wife wants to go out for supper so I suppose I'd better go get ready. Don't get a lot of shop time during the week so probably won't get back to it until next week end.
Thanks for the comments and looking hope I'm not boring everyone.
Title: Re: Floating end mill holder.
Post by: Doc on November 28, 2013, 10:39:24 AM
Ok got an early start before turkey time  :beer: and got the holes put in the bottom block for the bushings and the cam pin and also the cam leaver hole.


Setting the bushing heights.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB230019.jpg)

Here I'm transferring spring hole from top block to bottom with transfer punch.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB240017.jpg)

Here is the cam blank turned up.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB24001791.jpg)

Ok coffee break is over back out before the turkey is done.

Title: Re: Floating end mill holder.
Post by: dsquire on November 28, 2013, 11:00:39 AM
George

I'm still here following along. Looks like your making steady progress.

We had our turkey over a month ago but you talking about it makes me hungry for another one. Guess I'll have to wait till Xmas. Hope you enjoy yours.  :D :D

Cheers  :beer:

Don
587
Title: Re: Floating end mill holder.
Post by: Doc on November 28, 2013, 02:00:52 PM
Going to be a late turkey seems wife claims she got a late start :coffee: so it will be more around supper time for me but thats ok. A little more shop time for me because you know after the turkey it will be re coop time :D

 Anyway I put in a key way slot and clamp slot in bottom block.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB270012.jpg)


Then I set up cam in collet block and set in vise at about 8 degrees to drill handle hole to press fit a a handle in place.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB24001794.jpg)


Handle pressed in place I knurled up a knob for the end of it and pressed in place.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB2400179.jpg)

Now to figure out location of stop pins I'll press in a couple dowels for stops once I figure out the amount of rotation I'll allow the cam to move.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB240018.jpg)
Title: Re: Floating end mill holder.
Post by: Doc on November 28, 2013, 07:30:04 PM
Ok we had turkey is it to late in the day to take a nap  :)?

Here is some of what got done before the turkey.

Drilled and installed cam stops.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB270013.jpg)

Then when I was putting things together I noticed I made an error and a simple error couldn't believe I made such an error but there it was. How was I going to attach the mandrel block to the tilt mechanism I had drilled and counter bored holes to mount it but when you have the spring installed you can not get to the bottom of to install if you install the mandrel block first then you can not attach spring.  Well anyway I changed the spring counter bore to a milled pocket. And then decided to make a couple saddle clamps to hold mandrel block in place.

A short vid showing cam action forward tilted up for grinding back tilted down for indexing to next flute.


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280023.jpg)
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280022.jpg)




Title: Re: Floating end mill holder.
Post by: dickda1 on November 28, 2013, 09:54:50 PM
This is very nice work indeed. Have wanted to build one ever since I  saw a floating tool holder in  in an industrial shop.  :thumbup:
Title: Re: Floating end mill holder.
Post by: Doc on November 29, 2013, 10:24:36 AM
This is very nice work indeed. Have wanted to build one ever since I  saw a floating tool holder in  in an industrial shop.  :thumbup:

Thanks for the comments.
I have used one but not one that would move the cutter into and away from the grinding wheel like this one will.
I no longer work in the tooling shop I have been a tool design engineer for the past 10 years I'm coming up to the 40 years in the tooling trade in one way or another and still learning things.
 Thanks again.
Title: Re: Floating end mill holder.
Post by: Doc on November 29, 2013, 07:26:04 PM
Ok milled out a couple saddle clamps to hold top block in place.

I grabbed a couple pieces of 1/4 thick aluminum and squared up to over all width and height and scribed out the inside cut. I made 2 cuts for the sides I milled up to scribe line had my y axis set and just flipped part and repeated 4 times then unlocked y axis and connected cuts.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280014.jpg)


Here is a short vid of that cut being made.

video (http://s913.photobucket.com/user/doc0455/media/Floating%20tool%20holder/PB280015.mp4.html)

Then milled sides down to size leaving tabs.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280018.jpg)
 

then drilled holes in tabs
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280024.jpg)





Title: Re: Floating end mill holder.
Post by: Doc on November 30, 2013, 11:33:43 AM
Here are the clamps finished and in place.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280020.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280019.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280025.jpg)
Title: Re: Floating end mill holder.
Post by: unc1esteve on November 30, 2013, 12:32:13 PM
I made one of these also.  The only suggestion I have
is to use a chrome plated rod for the main shaft.  I am
going to retro fit mine.  It will make it smoother and
use less air.
Title: Re: Floating end mill holder.
Post by: Doc on November 30, 2013, 01:36:09 PM
I made one of these also.  The only suggestion I have
is to use a chrome plated rod for the main shaft.  I am
going to retro fit mine.  It will make it smoother and
use less air.

 I have made mine from a piece of preheat treated stainless I had handy. The block was made from a piece I believe to be some 4320 according to a spark test and it checks out to be around 40Rc. I held the .002 clearance to about .0015 and I don't think it could get and smoother and it really isn't using an unbelievable amount of air. I have used a production air bearing where I work and this one preforms as good and maybe even a little better than they did. I think a chromed shaft would be unnecessary as when in use all the grit is kept away from entering due to the air pressure. Thanks for the info but I'm happy with the way it slides and preforms for now but if I do have trouble I'll keep you suggestion in mind.

   Well I starting to think up a grinding head and slides for it now as I finish it up. I am thinking I'll make a grinding head spindle first and go from there. I would like to get a spindle made that I can set at variable angles and adjust height to what it needs to be we shall see.
  Anyway back out to get the finger and components to hold it done and wrap this build up.

   
Title: Re: Floating end mill holder.
Post by: Doc on November 30, 2013, 06:07:11 PM
Ok I started with a length of 1/2 dia stock and a short plug of 7/8 dia. The short plug will be silver soldered to end of 1/2 dia shaft.


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280027.jpg)


soldered up
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280028.jpg)

square up in 5c collet bloc to mill width and drill and ream 7/16 dia hole.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280029.jpg)
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB280030.jpg)

spot face, drill and tap cleaves clamp hole. Then band saw slot and open up clearance hole down to the slot.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB290033.jpg)

Cut a piece of 7/16 dia stock and another piece of 7/8 for end again.  same as last one only no cleaves clamp screw hole and no slot this time.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB290034.jpg)

soldered up ready to mill width and drill hole square up in 5 c collet block again.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB290035.jpg)

Ok another piece of 7/16 dia stock turn 7/16-20 thread mount in 5c collet block and mill keyway.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB290038.jpg)


ok milled step in opp end and drill ant tap hole to mount finger. Turned up and knurled a brass thumb nut .
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB290039.jpg)

And here the finger mounted I started with s piece of 1018 steel didn't have a piece of 3/8 dia tool steel so I heat treated the end by heating to red the plunge into some sugar then heat to bright red again and quench in water it did turn out hard a file wont cut it now anyway the sugar definitely added carbon like it was suppose to so it worked.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB290041.jpg)
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/PB290042.jpg)

Just a few minor things to do some deburing and it should be ready to go.
Title: Re: Floating end mill holder.
Post by: NeoTech on November 30, 2013, 06:32:37 PM
Its prob just me.. But what is this contraption used for??
Title: Re: Floating end mill holder.
Post by: Doc on November 30, 2013, 06:49:52 PM
The spindle that goes into it holds an end mill and the spindle floats on air so you can move it back and forth friction less, the finger is set to guide the flutes of the end mill as it is sharpened. The leaver tilts the whole spindle and finger set up into the grinding wheel for grinding then away from grinding wheel to index end mill to next flute.
Then when to flip the leaver back to grind position it moves back into wheel to the exact grind position for grinding the next flute.
  I'll post video once I get a grinding head set up and show it in action.
Title: Re: Floating end mill holder.
Post by: Doc on November 30, 2013, 07:05:25 PM
Its prob just me.. But what is this contraption used for??

Basically does the same as in this video

I just need to come up with a grinding head and a dovetail type slide.
The trick is the floating spindle will make it so you can feel the grinding action and grind with a smooth travel. 


I need to also order another CBN wheel I have one I use for hand sharpening carbide tools wish I could remember what grit I ordered any tips on what grit I should be looking at anyone?
Title: Re: Floating end mill holder.
Post by: mattinker on November 30, 2013, 10:47:25 PM
Its prob just me.. But what is this contraption used for??

Basically does the same as in this video

I just need to come up with a grinding head and a dovetail type slide.
The trick is the floating spindle will make it so you can feel the grinding action and grind with a smooth travel. 


I need to also order another CBN wheel I have one I use for hand sharpening carbide tools wish I could remember what grit I ordered any tips on what grit I should be looking at anyone?

Thanks for the Video, I've been waiting to understand what you're building too!

Regards, Matthew.
Title: Re: Floating end mill holder.
Post by: Doc on December 01, 2013, 03:06:34 PM
Your welcome Matthew I know sometimes I'm hard follow sometimes have a hard time explaining or showing.

Well I have come to the conclusion doing this project that I need to get a flood coolant system put on my lathe. It should be a fairly simple task. Anyway I'm thinking about taking the holder apart for one last deburing and then might powder coat the parts haven't decided if I want to or not. I did round up a motor to rig something up temporary to give it a try.
Title: Re: Floating end mill holder.
Post by: Doc on December 01, 2013, 08:11:53 PM
I recorded a short video showing how well it floats on air and it uses minimal air. It will start to float at about 15 psi and will float really well at 20psi. If I give her a good spin she will set and spin for long time.
  I started making some brackets to mount a motor and grinding wheel on the mill spindle like in the book but I don't plan on doing that permanently as I don't like the idea of getting grit on the ways of the mill.
Still not sure which CBN wheel I want to order I think the one I use the most now is a 150 grit but not sure.
Title: Re: Floating end mill holder.
Post by: Anzaniste on December 02, 2013, 02:16:01 AM
I'm following this with great interest. Are you making things up as you progress or are you working to an existing design. If the latter are the drawings available?
Title: Re: Floating end mill holder.
Post by: Doc on December 02, 2013, 05:18:49 PM
I'm following this with great interest. Are you making things up as you progress or are you working to an existing design. If the latter are the drawings available?

Yes and no I started with plans and drawings and have gone my own way on some things (I tend to do that)
Anyway the plans and drawing are in this book The Shop Wisdom of_Philip Duclos by The Home Shop Machinist2.

I have it in E-book format
 You can get it here http://www.scribd.com/doc/135514905/Home-Shop-Machinist (http://www.scribd.com/doc/135514905/Home-Shop-Machinist)
Title: Re: Floating end mill holder.
Post by: NeoTech on December 02, 2013, 06:24:07 PM
Thats really impressive.. been looking into air bearings myself at one time, but was told it wasnt possible to make them efficient enough and low consuming enough.. i might think they where wrong now. =)
Title: Re: Floating end mill holder.
Post by: Doc on December 02, 2013, 08:28:16 PM
This thing uses a very low volume of air I can run it down to just under 20 psi and as high as 60 psi and get excellent floating action. I think the secret is try and keep clearance around .002 and taper and out of roundness under .0002 mine is around .0003 as far as I can tell. I did spend a lot of time boring the main block to achieve it with a few free pass cuts with a nice sharp solid carbide boring bar that I ground up.
  I spent some time this evening putting a new cord on a motor I had laying around that I'm going to use for a temporary set up for grinding until I build a grinding head and some dove tail slides for a sharpening station.
  I talked to some co workers on what CBN wheel I should consider and now think I know what I want there and will get that ordered tomorrow.
Title: Re: Floating end mill holder.
Post by: Doc on December 11, 2013, 09:32:06 PM
I've been a little under the weather and not feeling up to par so haven't done much in the shop lately, Hope to get some things done this weekend if I start feeling better. I want to get a temporary set up to do some sharpening and see how it goes on some HS end mills before I order a CBN wheel.
Title: Re: Floating end mill holder.
Post by: Zadig on December 12, 2013, 10:46:43 AM
I've really enjoyed this thread, thanks. Get well soon, looking forward to the updates.
Title: Re: Floating end mill holder.
Post by: Doc on December 24, 2013, 05:29:00 PM
Thanks Zadig
 Well finally felt better today and spent a little time in the shop today' I made the two spindle clamps. I took another video with it set at 20 PSI. Now to work on a temp grinder head for my mill to be able to sharpen some end mills. I'll post my progress on creating a grinder attachment. I'm thinking now of attaching to the dove tail on the ram I'll post some pictures tomorrow if I get some shop time.

&feature=youtu.be
Title: Re: Floating end mill holder.
Post by: nel2lar on December 24, 2013, 10:24:30 PM
Doc
Very nice work, I was thinking about an air spindle on my Quorn. Again sweet.
Nelson Collar
Title: Re: Floating end mill holder.
Post by: Zadig on December 29, 2013, 05:57:14 AM
Come on Doc, this is a good thread, where are you upto?
Title: Re: Floating end mill holder.
Post by: Doc on December 29, 2013, 06:22:18 PM
 I thought I was feeling better but I'm still feeling poorly. Once I get back out in the shop I'll get back at it. I'm on antibiotics now for 2 days and must say I am feeling better. It sucks being sick during Christmas ans new years. Maybe tomorrow I'll get back at it I'm anxious to try my hand at the sharpening process. I do have a good friend that was the tool grinder where I work he is retired now but was very good at what he did so if I have trouble I'm sure I can get some pointers.
Title: Re: Floating end mill holder.
Post by: Zadig on December 30, 2013, 01:24:43 PM
 All the best Doc, get well soon.
Title: Re: Floating end mill holder.
Post by: Doc on December 30, 2013, 03:01:30 PM
Well the antibiotics seem to be working feel a lot better. Nice to be back in the shop without all the pain feel much better. Anyway started working on a temporary set up on my mill.

mount for a motor I had laying around that I'm going to try and use for the temp setup.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount.jpg)

mount on motor.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount2.jpg)

Now remember this is just a temp set up until I make up some cross slides and a spindle made up for the grinder.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount3.jpg)
Grabbed a piece of channel and mounted a 60degree wedge on the end and a push block to clamp to the mill ram.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount4.jpg)

mounted on mill ram
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount6.jpg)
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount5.jpg)

motor mounted on machine.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount7.jpg)

Ok now I need to dress wheel and set the proper height for the 5degree primary relief angle. Which is explained in the book pretty well on setting it up. Basically set a protractor to 5 degrees and set the point of contact with wheel to the center line height of the floating tool holder. So I need to get the center line height of the tool holder.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount8.jpg)

With that I took dinner break and after I post this will head back out.
Title: Re: Floating end mill holder.
Post by: chipenter on December 30, 2013, 03:12:13 PM
Sombody else who takes hard drives apart for the magnets and bearings , they realy clamp on don't they .
Title: Re: Floating end mill holder.
Post by: Doc on December 30, 2013, 04:50:23 PM
Hahahaha yes they do they come in handy all over the shop. I bid a buck on a box of hard drives where I work there must of been 60 or 70 hard drives all were good drives but I only wanted them for the magnets. I still haven't taken them all apart yet.

Well I sharpened some end mills and I am a happy camper!!! I'm uploading some pics and will try and get a video later. I do need to order a diamond wheel so I can do carbide I'm only doing HS right now.
And those that are worried this will use too much air I sharpened 6 end mills and was at it for 45 minutes and the compressor didn't kick in until I was finished. I am glad I finally went forward with it I had put it off several times.
Title: Re: Floating end mill holder.
Post by: Doc on December 30, 2013, 05:21:08 PM
Ok set the protractor to 5 degrees and scribed the tool holder center line height on protractor blade.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/settinghieght1.jpg)

Then placed on table and set wheel height to where the point on contact lines up with scribe line.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/settinghieght3.jpg)
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/settinghieght2.jpg)

set up and ready to give her a try. Taped old shopping bags to keep dust off machine.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/settinghieght4.jpg)


I know its hard to see but this was just a primary grind and I tested the end mill on my NC mill after sharpening and was pleasantly surprised it cut like a new one.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/endmillprimary.jpg) 

This one I did the secondary grind and the primary grind and it to cut like a new end mill.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/endmillprimaryandsecondary.jpg)

I am one happy camper!!

I'll set up the tripod and see if I can upload a video.
Title: Re: Floating end mill holder.
Post by: ieezitin on December 30, 2013, 07:06:46 PM
You should be very happy.... i would.

you have done a great job very nice...... a bunch of people are gonna be envious as i am with what you have achieved. Well done sir...

Anthony..
Title: Re: Floating end mill holder.
Post by: Doc on December 30, 2013, 08:55:38 PM
OK I'm liking it sharpened about a dozen end mills so far working good. Here is a video of sharpening of a 3 flut 3/8 dia end mill. I grind the secondary aprox 15 degree and the primary 5 degree. I make 2 pass's on each flut.
Title: Re: Floating end mill holder.
Post by: Zadig on December 31, 2013, 02:08:11 AM
How did you get on with the finger, was it as smooth as it looked? Was there any stickiness at all?

Great thread and great work, thanks.

Glad you are feeling better, stay away from the brothels.
Title: Re: Floating end mill holder.
Post by: Doc on December 31, 2013, 11:22:50 AM
How did you get on with the finger, was it as smooth as it looked? Was there any stickiness at all?
Thats why when you activate the cam it pulls away from the grinding wheel. The finger is hardened and I'm guessing at 65Rc so it is smooth when you pull the end mill across it.
Quote
Glad you are feeling better, stay away from the brothels.
Hahaha I wish that's all it was I had a bad infection on some of my teeth that I had root canals done. And that happened right after I was getting over the flu.
Thanks for the comments.

Well I'm going to round up all my dull end mills and get them sharpened. Then I'll have to give my friend a call I'm sure he will have some to do also.
  I will order a diamond wheel today and get started on a permanent sharpening station.
Title: Re: Floating end mill holder.
Post by: Doc on December 31, 2013, 02:21:19 PM
Ok I think I have sharpened all my dull end mills and did a little test cut with a 2 flut 3/8 end mill cutting 7075 t651 aluminum the cut was over 1/2 depth. I have to say I am happy with the way it cut just as good as new. Cutter comp will take care of the undersize condition on my CNC so I am happy with the out come.
Title: Re: Floating end mill holder.
Post by: dsquire on December 31, 2013, 02:55:42 PM
George

Very nice job that you have made on that. By the way that it cuts I would say that you have a keeper.  :thumbup:

Thanks for sharing it with the members George.  :D :D

Cheers  :beer:

Don
Title: Re: Floating end mill holder.
Post by: ieezitin on December 31, 2013, 06:16:02 PM
George.

smashing............. BTW what mill do you have, that re-ground endmill slid through there like butter.

Anthony..
Title: Re: Floating end mill holder.
Post by: Doc on December 31, 2013, 07:03:21 PM
Thanks guys the mill is this one.
G9902 9" x 49" Vertical Mill  (http://www.grizzly.com/products/9-x-49-Vertical-Mill-w-Power-Feed-Single-Phase/G9902)

 Well I ordered a diamond wheel and I will now start planning a cross slide set up and a spindle for the permanent setup. This temp set up was just to prove to myself I could sharpen end mills and was thrown together out of junk laying around the shop.
Title: Re: Floating end mill holder.
Post by: Doc on January 01, 2014, 06:26:47 PM
Ok started on the table picked out a piece of MIC6 tooling plate that I had laying around it is 3/4 thick.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/table-top1.jpg)

On my CNC mill
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/table-top.jpg)

Key way slots cut and 1/4-20 holes put in ready for dovetail slides on the underside.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/P1010053.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/table-top2.jpg)

I'll start on the dove tails next time. I want this slide to slide to a given position with a lever action it will be used in sharpening the ends on the cutters I will be able to set edge of grinding wheel to center line of floating tool holder. Plus I'll need to cut one more key way at about 3 to 5 degree angle to mount the tool holder at proper angle when end sharpening. Anyway thats it for now.
Title: Re: Floating end mill holder.
Post by: Doc on January 03, 2014, 01:31:34 PM
 Well since I have the table sort of tied down to what I want I started modeling up the slides to mount beneath it. I'm going to attempt to make the slide dovetails with only a 15 degree side angle I think that should be fine to hold it down and straight and still slide nicely. I'll get out in the shop this afternoon (I hope). It is suppose to storm tonight and get some snow and be in a blizzard first one this year for us.
Title: Re: Floating end mill holder.
Post by: Doc on January 03, 2014, 05:36:52 PM
Ok I set up and cut a set of slides the adjustable sides will be made of aluminum and have brass slide inserts.

Done drilling and tapping the mounting holes.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/slides.jpg)

Have I told you all I love this little devise wish back in the day when I was out in the tooling shop these existed.
Cuts down a lot of setting up a sign plate to set up the angles.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/slide2.jpg)


Done and ready to mount and dowel to the table.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/slides3.jpg)

I've got most of it laid out in cad now. I need to order some acme threaded rod and some nuts for the y axis travel the x will be moved by lever and linkage.
Title: Re: Floating end mill holder.
Post by: Doc on January 05, 2014, 04:48:35 PM
Ok I got a little distracted  :lol: seems my wife seen these seem to be square gears on U Tube and thought I  should make a set for my father-in-law for fathers day. Well I thought what the heck I'll set up the NC mill and cut a set out and here is what I got. I cut them out of some old lexan I had laying around. I'm going to get some wood grain contact paper and cover them.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/squaregear.jpg)


Ok enough of that, I drilled and tapped the gib tightening holes and re trammed the mill head so now the dove tail blocks are ready to mount to table bottom.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/gibadjust.jpg)

Flipped and spot face back side.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/gibadjust2.jpg)


I'll lock the gib set screws with a set of set screw lock jam screws.


These should work. (http://www.mcmaster.com/#set-screws/=q4fyya)

Title: Re: Floating end mill holder.
Post by: Doc on January 06, 2014, 07:04:58 PM
These pics are from last night I was about to post and the cable went out. We had some nasty weather they got it fixed sometime today.

Getting ready to transfer holes from dovetail to table using transfer screws.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/DOVETAIL-1.jpg)

Drill and counter bored the mounting holes.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/DOVETAIL-2.jpg)

Mounted first side and setting it parallel to the side using a 1/2 drill blank.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/DOVETAIL-4.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/DOVETAIL-3.jpg)

Ok both sides dialed in and doweled.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/DOVETAIL-6.jpg)

Didn't get much done tonight.

Title: Re: Floating end mill holder.
Post by: Doc on January 10, 2014, 08:58:37 PM
Ok I made it back out tom the shop a little this evening I had to have a root canal redone still hurts like hell but much better. Been hurting since Christmas so I'm hoping this will be the last for awhile.
 Anyway got the top table slides done and the seem to slide nice I now have to come up with an adjustable cam action for sharpening the ends of end mills I really only need about .500 of travel on the slide but the .500 of travel needs to be adjustable I'm thinking .75 to 1.0 to be able to adjust the table to where the center line of the tool holder meets up with the edge of the grinding wheel. The diamond wheel I ordered should be here any day now then I will start work on the grinding head and spindle.
 
Slides mounted to bottom plate ready to be put together.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/table3.jpg)   

Put together and need to create a cam or linkage to move table.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/table1.jpg)
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/table2jpg.jpg)

It's coming along slow but sure if this dam tooth would leave me alone for awhile.


Title: Re: Floating end mill holder.
Post by: Doc on January 12, 2014, 12:43:40 PM
Ok worked on the CAD file a little here is what I'm wanting to end up with.
Now out to shop and see if I can make some head way on the plan.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/Table_top.jpg)


Title: Re: Floating end mill holder.
Post by: Doc on January 15, 2014, 08:37:02 PM
  well I received the diamond cbn wheel this evening and just looking at it, it looks good. I'm going to set it up and do a little checking to make sure it runs true to the hub and id balanced. Then I'm going to work on a grinding head and spindle I'm thinking a spindle with a taper shaft to mount wheel after I make a tapered hub mount for it so I will be able to switch from the cbn wheel to a regular grinding wheel and have them run true and balanced as I will make tapered hubs for each of them. I ordered some 3/8-10 acme rod and nuts for the table cross slide I'm working on that should be here some time next week.
Title: Re: Floating end mill holder.
Post by: Doc on January 16, 2014, 08:38:22 PM
Got out in the shop for a little time this evening and started turning up a wheel hub.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cbn-wheel.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cbn-wheel2.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cbn-wheel4.jpg)


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cbn-wheel3.jpg)

Need to finish nut and put in a couple spanner wrench holes and the taper hole in hub that will mount to spindle once I get it built. I'll be able to true up the wheel after it is mounted to hub. I don't have a diamond break dresser I'm hoping that I'll be able to true it up with a diamond point stone mounted in a dremel. Has anyone here dressed a CBN wheel without a break dresser?   
Title: Re: Floating end mill holder.
Post by: S. Heslop on January 16, 2014, 10:52:50 PM
I've never seen one of these tall devices with the counter that's visible in both these pics [1] (http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount8.jpg) [2] (http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/settinghieght1.jpg). I'd love to know what it is, could you enlighten me?

Great work on the sharpening machine so far by the way. I've learned a fair few things from this thread.
Title: Re: Floating end mill holder.
Post by: Doc on January 17, 2014, 05:28:06 PM
I've never seen one of these tall devices with the counter that's visible in both these pics [1] (http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/grindermotormount8.jpg) [2] (http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/settinghieght1.jpg). I'd love to know what it is, could you enlighten me?

Great work on the sharpening machine so far by the way. I've learned a fair few things from this thread.


Thanks for the reply.
 That is a height stand here it is commonly called a Cadillac  inspection gauge. It is a Brown And Sharp like this one.
Brown And Sharp Cadillac height stand. (http://www.ebay.com/itm/Brown-and-Sharpe-Model-5581-Hite-icator-Height-Gauge-24-/230729120013?pt=LH_DefaultDomain_0&hash=item35b886f90d)
I got it at an auction for 50bucks and it works great. It was one I actually used in the shop where I work when I was out in the tooling shop. It is used in inspecting parts at the surface plate. I gives you the absolute height to the surface plate within .0001 depending on the dial indicator you are using with a height stand. With it you do not need to read the height stand and you do not have to worry about bumping your indicator as all dimensions will come for the surface plate. Not sure if I'm clear on the use I some time have a hard time explaining thing (I know) but if you are unsure of use ask away and I'll try again. Anyway I couldn't pass it up for 50 bucks (since it worked like new even though it doesn't look new.)



Title: Re: Floating end mill holder.
Post by: S. Heslop on January 17, 2014, 07:03:46 PM
I think I get it. The alternating recesses are so you can get the probe of the indicator in to reference off the surfaces both above and below.

It does seem like a real nice piece of kit, especially for $50.
Title: Re: Floating end mill holder.
Post by: Doc on January 17, 2014, 07:41:41 PM
I think I get it. The alternating recesses are so you can get the probe of the indicator in to reference off the surfaces both above and below.

It does seem like a real nice piece of kit, especially for $50.
Correct I use it all the time when I check things on the surface plate.

I went out and finished the hub taper and mounted wheel and mounted between centers on the lathe to check run out and wobble of wheel I had .002 TIR on run out and .005 TIR on wobble. I plan on making a break dresser after talking to a friend of mine that is a cutter grinder he did give me some good pointers. SO once I get the spindle made and I dress the wheel mounted on hub it should run true to .0002.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cbnhub.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cbnhub2.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cbnhub3.jpg)
Title: Re: Floating end mill holder.
Post by: Doc on January 18, 2014, 02:55:01 PM
Worked on the spindle this morning. I ruffed it out first and put center holes in each end. I the mounted between centers and turned to finish dimensions.


(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/spindle.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/spindle2.jpg)
Now set up top turn 1/2-20 threads using the fish tail and double thread depth.
Set compound to 29.5 and make sure travel of compound is all the way in. Then touch off on major diameter using cross slide set to zero and then back off compound and turn cross slide a distance of double the thread depth and reset to zero. Now you are set now touch off using the compound slide and move to start position and adjust compound in about .01 and engage half nut and start spindle at the end of thread back off the cross slid a turn then reverse spindle back to start position and then turn cross slide back to zero. Then turn compound in another .01 and repeat as before continue this until you reach the end of the travel of the compound and now you are at the proper depth then the last cut I usually turn the cross slide in .001 or .002 and take a finish pass and thread should be good at this point. This is the procedure I've use for years and has never let me down.

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/spindle3.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/spindle4.jpg)

Threads finished.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/spindle5.jpg)


And the nut even fits  :thumbup:
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/spindle6.jpg)

(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/spindle7.jpg)

Now I need to get a couple angular contact ball bearings and I can start on the spindle housing.
Title: Re: Floating end mill holder.
Post by: Doc on January 18, 2014, 07:23:52 PM
  Ok got the bearings ordered and squared up some stock and ruffed in the spindle hole now wait till I get the bearings then bore in each end for the bearings. I need to get pulleys and belt ordered yet I'll see if I can find some thing that will work tomorrow. plus I'll go back to the table slide tomorrow and see if I can move that along a little. The motor I'm hoping to use I want to slow the rpm down to half the motor so I'm planing on a timing gear set. That should work I hope.

  I need to find a good source though anyone have a suggestion?
I'm hoping to find something on the smallish side along with a belt for the set. 
Title: Re: Floating end mill holder.
Post by: mattinker on January 19, 2014, 09:42:30 AM
Just a note to say that I'm following with interest, I just want to thank and encourage you!

Regards, Matthew
Title: Re: Floating end mill holder.
Post by: Doc on January 19, 2014, 10:16:38 AM
Thanks Matthew!!  :beer:

I was beginning to think I was talking to myself again. :(  :palm:

  I'm still trying to find a supplier for a small timing belt and pulley set. That you don't have to buy 12 to 50 I only want 1 set. I have never used these belts on anything I usually make gear sets for my engines so this will be all new to me. I guess I'll have to go to Ebay and try and match up something there.
Title: Re: Floating end mill holder.
Post by: philf on January 19, 2014, 10:36:59 AM
Thanks Matthew!!  :beer:

I was beginning to think I was talking to myself again. :(  :palm:

  I'm still trying to find a supplier for a small timing belt and pulley set. That you don't have to buy 12 to 50 I only want 1 set. I have never used these belts on anything I usually make gear sets for my engines so this will be all new to me. I guess I'll have to go to Ebay and try and match up something there.

You're certainly not talking to yourself Doc.

Why do you want to use timing belts? I would think the majority of surface & T&C grinders use flat belt or direct drives. My Quorn T&C grinder uses a round polyurethane belt in v-pulleys which is very easy to make. My other T&C grinder has a poly-v belt drive with home made pulleys.

Timing belts may introduce some unwanted vibration.

 :beer:

Phil.
Title: Re: Floating end mill holder.
Post by: Doc on January 19, 2014, 10:47:46 AM
  You know Matthew I never thought of it that way vibration could be an issue as the whole purpose is to get a smooth running spindle. I guess
  I was thinking since the motor I want to use runs at a much higher RPM then I want I came up with just using a timing belt and pulley set. I may have to rethink this.
   Guess I need to look for a small flat belt supplier. I'm going to work on the table and give this more thought thanks again. This is the kind of feed back I desire as I'm sort of out of my comfort zone. 
Title: Re: Floating end mill holder.
Post by: rowbare on January 23, 2014, 01:04:44 PM
    Guess I need to look for a small flat belt supplier.

Try a vacuum cleaner repair shop.

bob
Title: Re: Floating end mill holder.
Post by: mattinker on January 23, 2014, 02:33:30 PM
George,

I wasn't the one who suggested that you might have vibration problems with timing belts, it was Phil.

I replaced the "V" belt (not original) with timing belts on my Clarkson T&G and I didn't have vibration problems. I used timing belts because like flat belts they bend round small diameters well. Round belts also work very well.

 Regards, Matthew
Title: Re: Floating end mill holder.
Post by: Doc on January 23, 2014, 02:45:45 PM
I'm sorry Matthew! Must of had another senior moment.

   I'm re thinking the whole belt concept I may try a lovejoy connector and a different motor. Still thinking thing through I did get the bearings installed in housing and the spindle put into the housing and ran it temporary with a set up. Everything looked good wheel ran with no vibration but the motor I had planed to use just seemed a little under power for this.
Title: Re: Floating end mill holder.
Post by: Anzaniste on January 23, 2014, 08:44:14 PM
What better place to get flat belts than every bodies favourite Tony at http://www.lathes.co.uk/page4.html
Title: Re: Floating end mill holder.
Post by: Doc on January 25, 2014, 07:41:21 PM
 Well I made a couple flat belt pulleys and I think I'm back with using a belt. I went to walmart and got a belt for the Dirt Devil was the shortest they had I think they will work. I'll get motor mounts made tomorrow and see how it goes.
Title: Re: Floating end mill holder.
Post by: Doc on January 26, 2014, 08:45:23 PM
Well made mounting block to mount motor and test run it setting on my small knee on the surface plate. Ran nice and smooth and should work good for sharpening Carbide end mills. I'm going to go ahead and set it up with my temporary set up I made for my mill and see if I can sharpen some carbide end mills. We will see how it goes and by the way the motor is nothing more than a 12 volt heater motor and I used my test box I wired up from an old computer power supply. I may just use that for powering it I have several power supplies I salvaged from some old computers that were getting tossed. Wish I would of salvaged them all I could of had several dozen but at the time I only took 3 or 4 of them. Here is a short video of the new spindle setting on the knee running.
Title: Re: Floating end mill holder.
Post by: Doc on January 27, 2014, 04:52:10 PM
   Ok it is official I can now sharpen carbide end mills.
 I set it up using the dove tail attachment I made for my mill and sharpened a few end mills. I ran out of end mills to sharpen :D I did 3/4 dia ,1/2 dia and some 3/8 dia. I will be looking for a little bigger motor it is a little under powered but will do the job for now. I'm liking it!
Title: Re: Floating end mill holder.
Post by: Doc on January 27, 2014, 05:39:13 PM
Here is a shot of an end mill before sharpening.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/750before.jpg)

And after sharpening.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/750after.jpg)


And a shot of a few I did this afternoon.
(http://i913.photobucket.com/albums/ac331/doc0455/Floating%20tool%20holder/cutters.jpg)

Well I think I'll call this project a success and when I get around to it I'll finish the table set up that I started.
Title: Re: Floating end mill holder.
Post by: dickda1 on January 01, 2015, 03:17:10 PM
Well Doc, about a year has passed since this wonderful project completed.   I watched your progress with great interest and am about to construct one myself.   Any advice after a year of use?
Title: Re: Floating end mill holder.
Post by: Doc on January 01, 2015, 11:26:49 PM
 The one I constructed has worked very good for me. The only advice I would give is to take your time on the main block with the bore and make sure the bore is straight and try for no taper.
 I have sharpened a lot of end mills with it mostly 1/2, 3/8 and 5/16 dia and has preformed very well. I have not finished my table for it I have been using my temp setup I made for my mill. When I sharpen end mills I cover all the ways with plastic shopping bags to keep grinding dust away.
Good luck!
Title: Re: Floating end mill holder.
Post by: vtsteam on January 02, 2015, 10:06:20 AM
Really great project! :bow: :bow: :bow: :clap:
Title: Re: Floating end mill holder.
Post by: Baron on January 02, 2015, 12:05:56 PM

PS
  Not sure anyone is interested in this or not but I'll keep chugging along.  Someone maybe thinking of or has done one before.  Until tomorrow then, I'll get started on the rest of the build.


I'm watching, listening and learning  :coffee:
Title: Re: Floating end mill holder.
Post by: CrazyModder on January 02, 2015, 03:09:16 PM
Yeah... you make sharpening end mills look way easier than sharpening drill bits... keep at it.  :headbang:
Title: Re: Floating end mill holder.
Post by: Doc on January 03, 2015, 12:00:08 PM
Thanks guys!
I rally should get back to the rest of the build. I have been devoting my time to working on a V8 build but have been feeling under the weather so haven't been in the shop in awhile to make any dull end mills to sharpen   :(  But must say I am still very pleased with the way the holder preforms and does make it quite easy to sharpen end mills. I've shown sharpening the sides of end mills but neglected to show sharpening the ends I'll have to set up the camera and show that the holder works very well for that also.
 What I need o do is kick this dam cough I've gotten it's been over 3 weeks now the doctor thought I had pneumonia but after chest ex rays says it's just a sever cold.
  Anyway I'll eventually get back to this project and get a video made once I start feeling better thanks for the comments everyone much appreciated.
Title: Re: Floating end mill holder.
Post by: vtsteam on January 03, 2015, 12:14:33 PM
Get well soon, George. Glad it wasn't pneumonia -- I had that a couple years ago, and it's no picnic. Looking forward to more on this project when you are feeling better and have the time.  :beer:
Title: Re: Floating end mill holder.
Post by: awemawson on January 03, 2015, 12:48:47 PM
George I wish you a speedy recovery. There seems to be a particular strain of cold going the rounds here that, although not particularly debilitating, takes ages to clear. I've had it for a couple of weeks, and those who probably passed it to me took at least four for it to go away. Just an irritation, nothing dramatic. A cure for the 'common cold' would be a blessing for man kind.
Title: Re: Floating end mill holder.
Post by: nel2lar on January 30, 2015, 08:38:49 PM
George
I friend of mine Mark Fraiser is wanting to build an air spindle and I would like your permission to share your build with him. Please let me know something so I can proceed.
Cheers
Nelson Collar
Title: Re: Floating end mill holder.
Post by: Doc on February 02, 2015, 08:02:13 PM
Yes feel free I posted it to try and help anyone that is interested in trying the same.
Title: Re: Floating end mill holder.
Post by: Okapi on February 25, 2015, 06:57:42 PM
You make really a super job, it's simple in material used, no big expense, and when I see the results… :drool:
Title: Re: Floating end mill holder.
Post by: Doc on November 11, 2015, 10:03:21 PM
   Well it still preforms well the only thing I have had to do to it is occasionally take the spindle shaft and give it a good cleaning with some alcohol. I still haven't found time to get the table and rest of the set up done still been bagging up the mill to keep grinding dust away and using my   temporary (maybe not so temporary) setup. It is simple to use and I would suggest anyone interested in sharpening their own end mills to give it a try.
Title: Re: Floating end mill holder.
Post by: SteveT on November 14, 2015, 02:21:54 PM
George a very interesting build and it looks like it works a treat, well done
Title: Re: Floating end mill holder.
Post by: Doc on January 21, 2016, 10:15:48 PM
    The floating holder still works like it should only thing I have done to it it wipe it down with some cleaner now and again. I did change the motor that I was using on the spindle I built for the grinder and the spindle still works very good no end play at all in the bearings. Next batch of end mills I sharpen I may set up the video camera and tape how my set up works. 

   Plus the next batch I do I'm going to try and do some smaller end mills the smallest I've done so far were 3/16 and they worked out ok. I have some 1/8 that I'm going to take a shot at.

      I'll keep you posted but I do recommend anyone that wants to sharpen end mills and hasn't tried this tool holder to give it a shot. The plans for it are in The Shop Wisdom of Philip Duclos I did change a couple things but for the most part it is per plans in the book.
Title: Re: Floating end mill holder.
Post by: Doc on December 30, 2017, 09:42:38 PM
Just to let everyone interested that it still works great for me but I still have been using my mill set up. I need to devote some time at making a free standing table unit maybe re think and make it along the line of a Quorn tool grinder.
  3/16 diameter and larger have been simple to grind I did do some 1/8 but they are a pain the 2 flt 1/8 are too bad but the 4flt are the ones that really are a challenge.
  Anyway just wanted to let fellow home shop people know it works great and will save you some money (or make you some with sharpening for others) The only maintenance has been a wipe down occasionally with some alcohol.