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3" Allchin Model

** Drawings Required **

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matthew thompson 113/03/2018 08:40:49
1 forum posts

Hi All,

Apologies for sounding so daft, but to cut a long story short I have ended up with all the casting / parts for a 3" Allchin Traction Engine however, the drawings have seen better days & i'm struggling to made sense of them.

I'm wondering if anyone can point me in the right direction of some newer drawings or in the direction of someone who would be able to help?

Regards, Matt

JasonB13/03/2018 09:46:37
17073 forum posts
1839 photos
1 articles

They are usually made by doubling up the 1.5" drawings, you can get these from Reeves.


There is also a book which may help you understand what is on the drawings, get the blue cover one which has more upto date info isbn 0-85242-635-6

Edited By JasonB on 13/03/2018 09:46:51

Trevor Drabble13/03/2018 13:46:08
205 forum posts
5 photos

Matt, John Rex Model Engineers at Pontefract used to supply the castings for this model , perhaps they still do . They therefore may be able to assist with drawings .

Trevor .

Clive Brown 113/03/2018 15:36:26
320 forum posts
7 photos

The Hughes 1 1/2" drawings as supplied by Reeves are very good. The only "gotcha" that I recall is that his original design of lubricator couldn't be assembled.

In this scale, the boiler stays are/ were machined and drilled after assembly to attach the hornplates. The 3" model might need a different approach.

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