If you message me your email address I can send you a pdf file.

It may well be the same diagram that Steve has, but this thread is worth a read anyway.
Gary's post on P1 with all the photos contains a link to a pdf.
https://www.model-engineer.co.uk/forums/postings.asp?th=144126

I found a used one in the end which originally came from Tony at Lathes.co.uk

I don't know your projected use, but a long one makes life so much easier for horizontal milling

Bill

Edited By peak4 on 13/10/2022 22:36:24

Yes, the pdf I have is the one provided by Gary Wooding in the thread Peak4 has linked to above. The thread referred to contains a lot of information from Gary and others on the details of the dovetails, and pros and cons of short vs. Long riser blocks.

Bigger than a 1" dia which is a little short on the flanks.

The Chronos 32mm perhaps, check the depth of your dovetails.

Edited By Dave Halford on 19/10/2022 19:40:53

For the ones I made, I found that the cutting of the dovetail was the easiest part. The hard parts were the slots for the fingers, and the fingers themselves. Although not strictly necessary, I wanted the steel fingers to look the same as the original Centec ones, and they were difficult to machine – they have some strange angles.

The pictures show the last 5 sets of fingers and name plates I made, and an unfinished set of fingers that I didn't think were good enough.

Drop me a PM if you want the unfinished set.

Gary

60dg