Author Topic: Rocking away on a Sunday afternoon  (Read 5482 times)

Offline DavesWimshurst

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Rocking away on a Sunday afternoon
« 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





Some build pictures follow:

Cross drilling piston rod with milling spindle:



Indexing off the chuck jaws for the flywheel:



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:



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

Drilling for the crank pin



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:



Dave

« Last Edit: August 17, 2009, 12:56:56 AM by DavesWimshurst »

Offline Brass_Machine

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Re: Rocking away on a Sunday afternoon
« Reply #1 on: August 16, 2009, 10:51:03 PM »
Very nice Dave!

 :nrocks: :nrocks:

Eric
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Offline sbwhart

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Re: Rocking away on a Sunday afternoon
« Reply #2 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
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Offline raynerd

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Re: Rocking away on a Sunday afternoon
« Reply #3 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.

Offline Divided he ad

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Re: Rocking away on a Sunday afternoon
« Reply #4 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.
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Offline Stilldrillin

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Re: Rocking away on a Sunday afternoon
« Reply #5 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
David.

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

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

bogstandard

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Re: Rocking away on a Sunday afternoon
« Reply #6 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

Offline Darren

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Re: Rocking away on a Sunday afternoon
« Reply #7 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:
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline DavesWimshurst

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Re: Rocking away on a Sunday afternoon
« Reply #8 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.



Milling spindle


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

Dave


Offline Darren

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Re: Rocking away on a Sunday afternoon
« Reply #9 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?
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline Bernd

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Re: Rocking away on a Sunday afternoon
« Reply #10 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
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