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Vehicles & Models / Re: Pennsylvania A3 Switcher (Kozo)
« Last post by Don1966 on Today at 08:20:34 PM »
Awesome…. :Love:

From Plans / Re: Farm Boy
« Last post by Dalboy on Today at 07:55:19 PM »
Thank you Admiral_dk

This bring me to todays work not had much time so managed to mark out for some of the machining to the rear base.
This is mainly to keep me on track as most of the work is carried out using the DRO.

Starting on the end that will eventually join the front still need to remove more from the two steps as can be seen as I have not reached the lines for these
From Kits/Castings / Re: Stuart Beam Engine in Diorama
« Last post by Djangodog on Today at 07:53:24 PM »
I am fairly new to the forum and this is the first time that I have looked through this thread.  That has to be the nicest Stuart Beam engine that I have seen.  He seems to have unlocked the model’s potential. Beautiful workmanship and creativity.  He was a real artist.
Your Own Design / Re: Chris's Build of Battleship Ohio Engine
« Last post by crueby on Today at 07:11:17 PM »
The jig is working  great, just slide in the parts and everything is  aligned, no need for  adjustments or  measurements. 

Your Own Design / Re: Making Progress
« Last post by Jasonb on Today at 07:04:34 PM »
Yes thats it mike the photo shows the steps left by the adaptive.

I did get a couple of cans out this afternoon and gave it a quick squirt, With either standard or high build primer the surface is good enough to go straight to paint

High5 on th eleft, bare metal in the middle

Standard grey primer

All a bit academic now as I've hit it with the Dremel as well as a bit of body filler to fillet the joint between feet and bed

Talking of the feet this is how I did them. Popped a bit of scrap 3/8 x 1" black bar roughly in the vive, flattened the top, adaptive and two contour passes to get the oblong shape and then a couple of 3mm holes with a split point stub drill. Repeat 3 times. It's a lot easier than filing buttons :)

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I know some are interested in how long these things take, the computer says 3hrs 28mins for the bed, I would say it came out closer to 4hrs total which makes 3D printers look a bit slow and there is also no clean up required should I have wanted to machine this as a pattern rather than a part.

While we are still covering the bed I noticed that images of existing engines on the net did not have the lip running around the back of the bed which was shown on the GA drawing that I had initially found and started to work from. Once I found out that the booklet contained details of all the engines I bought that hoping for some clarity but it was just the same drawing.

Typical existing engine

Extract from GA

I can only assume that it was found easier to produce the casting without the lip at the back due to the overhanging cylinder bracket and it was omitted for production. Which is what I have also done, can't get replica detail like that simply by multiplying by 25.4 ;)

From Kits/Castings / Re: steam engine with 40 mm bore
« Last post by Kim on Today at 07:00:53 PM »
Wow!  That was quite the setup, with the whirling legs of death and all!  Looks like it worked well for you!  :popcorn:

Vehicles & Models / Re: Pennsylvania A3 Switcher (Kozo)
« Last post by Kim on Today at 06:57:04 PM »
Thank you, Michael, Jeff, and Chris!  :cheers:

Your Own Design / Re: Chris's Build of Battleship Ohio Engine
« Last post by Kim on Today at 06:52:50 PM »
Nice work on the crank webs, Chris!  Good use of that jig too!

From Kits/Castings / Re: steam engine with 40 mm bore
« Last post by crueby on Today at 06:33:07 PM »
Clever setup!    :popcorn: :popcorn:
Your Own Design / Re: Triumph 500 twin
« Last post by John Roberts on Today at 06:25:22 PM »
Thanks guys.
 I couldn't resist a rough assemble to see what it looks like.
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