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Author Topic: 1:48(On30) Brass 0-6-0  (Read 21260 times)
lab-dad
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« Reply #30 on: May 06, 2010, 08:01:24 AM »

In hopes that my raw materials will show up soon I thought I'd better come up with plans for the sand domes.
I usually just scribble dimensions on a post it note and go to the lathe.
I thought it might be beneficial to show some sort of dimensioned drawing....
Again, I am not a machinist or a CAD draftsman!
I did the image in powerpoint (allows me to save it as a jpg) IT IS NOT TO SCALE!!!!
Not sure about that angle on the top, of course "if" I had CAD I could find out......
-Marty


* sanddome.jpg (36.27 KB, 960x720 - viewed 492 times.)
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TRAINS1941
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« Reply #31 on: May 06, 2010, 03:49:59 PM »

-MJ

Well you can machine parts.  Now your drawing them to.  Great job, but I think you should learn CAD.

Who knows you may need it in the future Grin

Jerry
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John McGuyer
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« Reply #32 on: May 07, 2010, 11:52:30 AM »

This I like. I just made the smokebox front in brass for Bob Uniack's upcoming 1/32 Harriman Consolidated and what a job! Makes you truly appreciate work like this.

John
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lab-dad
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« Reply #33 on: May 18, 2010, 07:15:22 AM »

Well my materials finally arrived!

Here is the top of the sand dome being turned.
I did both tops on each end of a section of .500" rod. I drilled the .106" hole through the stock first. Then I pivoted the headstock to the 15 degrees for the angle on the top.
In the picture the cutter is forming the radius after I made the parting cuts.


* sanddometopradiuscut.jpg (76.4 KB, 800x536 - viewed 460 times.)
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lab-dad
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« Reply #34 on: May 18, 2010, 07:16:02 AM »

Next I am "parting off" the workpiece.
I use a length of styrene rod in the center to keep the piece from flying away and being lost


* sanddomepartingoff.jpg (62.48 KB, 800x536 - viewed 443 times.)
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lab-dad
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« Reply #35 on: May 18, 2010, 07:16:52 AM »

The two tops of the sand domes with my (Chucks) giant penny.....


* dometopsandpenny.jpg (199.28 KB, 716x600 - viewed 467 times.)
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lab-dad
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« Reply #36 on: May 18, 2010, 07:17:30 AM »

And the turning with the crummy cast lid.
(guess what I need to make next?)


* domewithlid.jpg (189.38 KB, 778x600 - viewed 478 times.)
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finescalerr
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« Reply #37 on: May 18, 2010, 01:24:24 PM »

Not bad. Now try making one from paper. -- Russ
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lab-dad
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« Reply #38 on: May 18, 2010, 04:17:02 PM »

ssuR,
Off to the corner! (if your not already there!)
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« Reply #39 on: May 18, 2010, 07:27:00 PM »

Not bad. Now try making one from paper. -- Russ

He did!!  This was the real one in brass!!!

Great job MJ even if it was ass!!!

Jerry
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« Reply #40 on: May 19, 2010, 03:23:31 AM »

That is some nice work...can't wait to see the little cap piece.

Marc
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lab-dad
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« Reply #41 on: May 19, 2010, 07:54:57 AM »

Thanks guys, glad you are enjoying this thread.

Spent about an hour finishing the turning on the sand dome bases last evening.
Next is to cut the radius and then new lids.
Not sure how I want to do the lids.
I think the ball final is a little too fancy, but how to remove it for filling?
May be just a flat cap, it is about 6" in diameter.
I dont see any real details in prototype pictures.
Suggestions? Images?
-Marty


* sanddometurning.jpg (62.19 KB, 600x684 - viewed 439 times.)
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finescalerr
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« Reply #42 on: May 19, 2010, 01:01:10 PM »

My only suggestion is to keep cranking out parts as beautiful as what you have been doing. -- Russ
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Philip Smith
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« Reply #43 on: May 19, 2010, 08:46:22 PM »

awesome finial! I prefer fancy over plain anyday. Cool
Philip
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lab-dad
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« Reply #44 on: May 25, 2010, 07:15:49 AM »

Well the fabricating is just about finished, I think.
Here is an in progress shot of one of the sand domes.
The radius has already been cut.
The piece has been turned 90 degrees for drilling the hole for the sand line.
FWIW the bit is a .033"
Finished pics to follow.
-Marty


* domedrillingSM.jpg (183.49 KB, 600x764 - viewed 433 times.)
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