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Gallery, Projects and General => Gallery => Topic started by: DavesWimshurst on August 16, 2009, 10:49:36 PM

Title: Rocking away on a Sunday afternoon
Post by: DavesWimshurst on August 16, 2009, 10:49:36 PM

 Rocker-itus bites again. :nrocks:
I used the materials as specified on the plans, mostly brass.  Couldn't resist cutting fins. Took about 7 hours with a lunch break.  Of course the play time continues on.  :D

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/rocker/IMG_0575.jpg)

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/rocker/IMG_0577.jpg)

Some build pictures follow:

Cross drilling piston rod with milling spindle:

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/rocker/IMG_0568.jpg)

Indexing off the chuck jaws for the flywheel:

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/rocker/IMG_0572.jpg)

One could do this with a 3-jaw using a level on each jaw in turn with the jaw pointing towards you and then with the jaw pointing to the back of the lathe for the other three divisions.  If you have no milling spindle you can at least mark the positions with a tool in the tool post to scratch in the divisions.

I needed to finish the ends of some 1/16 inch drill rod.  My 3-jaw doesn't close that small and I was using the 6-jaw anyway so I removed every other jaw:

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/rocker/IMG_0571.jpg)

Of course this leaves more room for chips to get in but it got the job done   :thumbup:

Drilling for the crank pin

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/rocker/IMG_0570.jpg)

Sorry I forgot to take pics of the milling and finning of the cylinder, I was having too much fun.  :ddb:

But I made a video:

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/rocker/th_rocker.jpg) (http://s596.photobucket.com/albums/tt46/DavesWimshurst/rocker/?action=view&current=rocker.flv)

Dave

Title: Re: Rocking away on a Sunday afternoon
Post by: Brass_Machine on August 16, 2009, 10:51:03 PM

Very nice Dave!

 :nrocks: :nrocks:

Eric

Title: Re: Rocking away on a Sunday afternoon
Post by: sbwhart on August 17, 2009, 12:12:18 AM

ITS ANOTHER RUNNER

Well done its chuffs along like a big un.  :D :D :D :D :D

Nicely shown build methods to

Thanks for sharing

Stew

Title: Re: Rocking away on a Sunday afternoon
Post by: raynerd on August 17, 2009, 02:40:13 AM

Nice one Dave.

Quick question - how is your drill mounted on your lathe to allow you to drill for the fly wheel for example. I presume it must be powered and your just using the headstock to hold and index the job? - is this standard on this model or was this a mod?

Nice work on the engine. Looks great.

Title: Re: Rocking away on a Sunday afternoon
Post by: Divided he ad on August 17, 2009, 02:53:07 AM

Good looking little fella there Dave  :clap:

Sweet little chuffer too :thumbup:




Where did you find all that time? Did you go out turning rocks over to capture it?? I just can't seem to find enough of the stuff!



Slightly  :offtopic: .... I like your tool post drill, is run from a pulley? I was squinting to get a look in the corner of one of the pic's  :)





Ralph.

Title: Re: Rocking away on a Sunday afternoon
Post by: Stilldrillin on August 17, 2009, 03:19:17 AM

VERY nicely done & shown Dave!  :clap:

It sounds much larger than it is.  :thumbup:

Wonder when mine will be finished?  ::)

David D

Title: Re: Rocking away on a Sunday afternoon
Post by: bogstandard on August 17, 2009, 03:22:05 AM

Dave, very nice job indeed.

It is one of those little projects you just have to do at least once in your life.


Bogs

Title: Re: Rocking away on a Sunday afternoon
Post by: Darren on August 17, 2009, 06:01:34 AM

Very nice Dave, runs sweet as a nut..... :clap:

Really like your lathe set-up...esp the additional spindle, that really looks versatile.... :dremel:

Title: Re: Rocking away on a Sunday afternoon
Post by: DavesWimshurst on August 17, 2009, 06:51:36 AM

Thanks for the comments guys.
The milling spindle is driven by an overhead drive that I saw in one of Guy Lautard's Bedside Readers.

(http://i596.photobucket.com/albums/tt46/DavesWimshurst/intro%20pics/IMG_0080.jpg)

Milling spindle
(http://i596.photobucket.com/albums/tt46/DavesWimshurst/Milling%20spindle/IMG_0401.jpg)

It's quick to set up.  I also have a small jacobs chuck on a straight shank I use with it.

Dave

Title: Re: Rocking away on a Sunday afternoon
Post by: Darren on August 17, 2009, 06:56:27 AM

Don't suppose you have any build logs or drawing of the spindle do you?

I would imagine making a spindle is fairly straight forward, what type of bearings did you use?

Title: Re: Rocking away on a Sunday afternoon
Post by: Bernd on August 17, 2009, 09:03:36 AM

Nice little runner you got there Dave. Nice pics of the build up too.

Hey David D. It looks like you and I are in the running for taking the longest to build one of these. I'm still working on mine. :med:

Bernd