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Author Topic: A mostly Boring post....  (Read 11007 times)

Offline Divided he ad

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A mostly Boring post....
« on: June 25, 2011, 08:19:58 PM »
Well, some might say that anyway?  :)


It's been a while since I made anything or posted anything worth reading so I hope some will find this worthy?


A little back story first.   Quite some time ago I was visiting Bogs and he had not long had his new mill in service. While showing me it's workings, one thing that really stood out was the use of the powered knee to raise the work while boring. Thus creating a near mirror finish while boring out a part. Something I really liked but could not do on my mill.

Well, not on my old mill anyway. But the new one with it's very easily rotated z axis fine feed. That's a completely different story.....



So, with a little geared motor, a mini toothed drivebelt and some toothed pulleys to fit the belt (all acquired from Bogs  :beer: ). Then not more than a day after talking through my idea with John, Stew posted an advert for a speed controller free to a good home.... How lucky was that!?  :ddb:


So armed with this lot I did this...... (Don't worry the rest is mostly pictures and a (basic) video :thumbup:


The motor and the larger pulley, a bronze insert with 1/2" bore. Made the replace the roller bearing clutch that I pressed out.



The insert pressed in and the pulley test fit.





The pulley was then drilled through and threaded to take a grub screw. I used the flywheel retaining idea of a long pin down the hole so I only had the thread the top of the hole  :)



I missed a few pictures, being caught up in the moment and all... So I got to this pretty soon. A bit of pre-bent steel plate that was pretty strong. I fitted the motor to it and then mounted a brass block. Then mounted it to the mill using existing holes.


 Sorry, I missed loads of photo opportunities on the way.... I ended up with this though. It's in manual mode here, just release the bearing tensioner and push the belt off the large pulley..... A bit rough and ready, it is only for occasional boring use. I may re-make some bits in the future but not now. It does the job I made it for and I'm very happy with the result.







And the proof it works....

(Click on the pic to see the vid)



A close up of the finish.... Pretty good I'm thinking  :dremel:




Proper happy with myself this evening..... Feeling like I'm a madmodder again  :nrocks:   :D






Feel free to question and critique.






 

Ralph.

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Offline Brass_Machine

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Re: A mostly Boring post....
« Reply #1 on: June 25, 2011, 09:42:16 PM »
Damn fine mod Ralph!

Eric
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Offline sbwhart

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Re: A mostly Boring post....
« Reply #2 on: June 26, 2011, 01:10:22 AM »
A cracking fine mod their Ralph   :thumbup: :thumbup: :thumbup:

Stew
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Offline HS93

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Re: A mostly Boring post....
« Reply #3 on: June 26, 2011, 02:20:18 AM »
nice job, so you got some I did not see any big gears in the box,

peter
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Offline Stilldrillin

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Re: A mostly Boring post....
« Reply #4 on: June 26, 2011, 02:24:01 AM »
Very nicely done Ralph!  :clap: :clap:

Recycling, at it's best.....  :thumbup:

David D
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Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

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Re: A mostly Boring post....
« Reply #5 on: June 26, 2011, 03:58:17 AM »
Nicely done Ralph  :bow: :bow: :bow: :bow: :dremel:


Rob  :)
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Offline Divided he ad

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Re: A mostly Boring post....
« Reply #6 on: June 26, 2011, 07:14:13 AM »
Thanks for the top replies chaps  :thumbup:    (said in his best of British!)

Glad you appreciate the recycling David.... Not my first thought though  ::)  :lol:

Peter, John  said you had a few bits from the same box.... how did you miss a pulley 2.5" across?  :palm:
I was hoping to use the clutch in some way, but it just wouldn't work. On the plus side I have a 1/2 (internal) roller clutch on the shelf now  :)



I think this is going to be used in preference to the lathe when I bore my next cylinder.... The finish is really, really smooth  :)




Thanks again guys, always nice to get some positives back  :thumbup:








Ralph.

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Offline DaveH

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Re: A mostly Boring post....
« Reply #7 on: June 26, 2011, 10:54:30 AM »
Ralph,

Sorry I'm late.

Excellent :thumbup: :clap:

 :beer:

DaveH
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Offline DennisWA

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Re: A mostly Boring post....
« Reply #8 on: June 26, 2011, 03:32:40 PM »
Ralph.....Good thinking - I'm impressed!

Judging by your recent silence I thought you were intensely wrapped up in mastering your new DRO! Are you still happy with your purchase?

Cheers

Dennis
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Offline SPiN Racing

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Re: A mostly Boring post....
« Reply #9 on: June 26, 2011, 06:09:36 PM »
Really nice piece of kit.
I Love things like that... that once you figure it out they end up going together essentially quick, and then you get suuuuch a wonderful result that you wonder how you lived without it..

Nice quick setup there.
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Offline Divided he ad

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Re: A mostly Boring post....
« Reply #10 on: June 26, 2011, 07:51:15 PM »
Cheers Dave, I don't think it matters what time you find stuff on here  :) Glad you (and others) like it  :thumbup:


Dennis, Thank you. And my silence is due to many things in my social calendar as well as broken computer and of course many differing car repairs  :borg: Still very happy with the DRO. Although barely used it yet....only used it for one operation on this build though, getting the centre correct when cross drilling the rod, takes about 30 seconds and you know you're dead centre  :thumbup:


Thanks Scott, I know what you mean. This has been in my head for a few months and only the other week did I have all the required components. Well, I found a few of them while making it.
Not a bad prototype for an afternoon/evenings work. With 2 breaks for meals and even watched a film then went back out to finish it off  :)
Does work an absolute treat, finish is silky smooth   :ddb:






Ralph.
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Offline Nelson92757

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Re: A mostly Boring post....
« Reply #11 on: June 26, 2011, 10:01:35 PM »
Ralph.
This is the first time repling to your post, by the way I have enjoyed keeping up with you. As they say I'm watching you. I have got a question, your pictures have a water mark like image, how did you do that? That is prefection in the finest. Enjoy your work, keep it up.
Nelson Collar
:doh: :doh: :doh: :doh:
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Offline Divided he ad

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Re: A mostly Boring post....
« Reply #12 on: June 27, 2011, 01:34:42 PM »
Does that put you in stalker class Nelson?  :lol:



http://madmodder.net/index.php?board=11.0   Top of the page.

A whole post on using a free program and once it's set up it's a doddle to use  :thumbup:




So when do we see some of your posts and work pictures?  :poke:   :)





Ralph.

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Offline Miner

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Re: A mostly Boring post....
« Reply #13 on: June 27, 2011, 05:59:10 PM »
Ralph,
Why couldn't you have posted this about 10 years ago? :bang:

A very clever combination of all the unrelated parts. One of the reasons I ordered the mill I now have was the built in power down feed and I certainly wouldn't want to be without it now. Maybe a unnessisary for you thought tho, Since my mill has a 3 speed power down feed, You could if required in the future add on something like a manual lathes change gear banjo and then use some small gears to give a multiple rate power down feed. A thought anyway.

Pete
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Offline Divided he ad

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Re: A mostly Boring post....
« Reply #14 on: June 29, 2011, 07:10:01 PM »
Pete, in answer to your question ~4 years ago I didn't have any machine tools to mod'!   :)


The speeds are altered on a variable speed controller, you see in the video how the hand wheel is spinning quite quickly and then slows to a crawl? That's due to me twiddling the knob a bit  :ddb:   :D



Happy you liked the result  :thumbup:





Ralph.
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Offline SKIPRAT

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Re: A mostly Boring post....
« Reply #15 on: June 30, 2011, 06:00:59 PM »
Hi Ralph

What make of mill did you do this mod to as i have a Warco Minor ( RF25 clone ) and adding power Z axis feed would come in handy when drilling large holes or boring .

Cheers Paul
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Offline Divided he ad

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Re: A mostly Boring post....
« Reply #16 on: July 01, 2011, 01:55:59 PM »
Hi Paul,

Mine is a very similar mill to yours from what I can see.



The main thing that got me thinking that this would work was how easy the fine feed was to turn by hand. As long as your seems quite easy to turn then it'll probably work  :borg:

Not too sure about the drilling of large holes? But a fine cut with the boring head, it has more than enough drive.


Personally I don't have all the bits to make another one cause I got many of my parts from John and the speed controller was one built b Darren and given to me by Stew.
Got a few different sizes of the smaller pulley though.




If you need any better photo's or want to know anything that I might just ask  :thumbup:





Ralph.
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