Question about GHT’s retracting topslide drawing

[egaParticipant @ega]

I bought the kit from the late Neil Hemingway but have only recently plucked up the courage to start the build. In his Workshop Manual (1992 edition) GHT said that, apart from the gears and leadscrew which come with the kit, the parts are not difficult to make, but I think I took fright when I saw the Double Elephant size drawing! I know that one or two members have successfully completed the RTS and hope for some help with the drawing of the body as shown in the extract below:

 

Holes A to E are shown and listed in the table but two holes on the drawing appear not to be listed and I am not clear about hole F. The unlisted holes have coordinates of 1.218/.512″ and .600/1.625″; one of them may be F.

Can anyone who made the RTS throw any light on this? I am reluctant to think that GHT slipped up and appreciate that I may be misunderstanding the drawing.

Incidentally, apart from Neil Hemingway’s business being taken over on his death, it now appears to have passed to Messrs Reeves and I don’t suppose they could help at this remove.

[JasonBModerator @jasonb]

A lot of the Hemmingway stuff was redrawn in CAD, Reeves may be able to help with a more upto date drawing. You can see the CAD drawing here https://www.hemingwaykits.com/HK1240

Failing that what mates with the two unlisted holes?

[egaParticipant @ega]

JasonB:

Thank you for your advice and for the link which, however, seems to show only drawing 1 of 6, the GA; I will try Reeves – happily, they are still with us!

I did consider your fallback suggestion and may have to have another go at this route. I also thought about just diving in but am reluctant to start cutting metal without having a clear path to the finished product.

[John PurdyParticipant @johnpurdy78347]

I made mine about 15 years ago and looking at my drawings they appear to be different. On mine your hole .6/1.625 is listed as “G” and the other is the centre of the large .875 dia hole. see the attached drawing. Hole”F” would appear to be the one on the curved surface as shown on the drawing below at the botom left.

John

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