Bingo! Myford's have them, a bit pricey but can't complain! I looked up RDG as I assumed they were the same outfit as Myford, well they operate out of the same address. RDG didn't have them so I assumed that Myford would not.

Apologies all, I really should have looked up Myford rather than RDG!

Andrew.

Brian, Hopper and Roderick, you are dead right in what you say! I am embarrassed, because I have Martin Cleeve's book and indeed Brian's excellent book, "Gearing of Lathes for Screwcutting", I can highly recommend both of them.

I have worked out how to get around the need for a 42 and 48 gear wheel, you gentlemen are right on the money! It really is pathetic to have a library that could have answered my query and simply not use it. No point in reading it for bedtime use and not use the info in practice! I am slowly coming off some potent medication and I can blame my lack of thinking on that (well I really hope that is the reason!) .

Thanks all for putting me right,

Andrew.

P.S. I actually enjoyed doing the calculations to get me as near as damn it the correct metric threads. A bit worrying , I thought I had left behind the need for maths.

Hello Brian,

Thanks for your words of encouragement. Large doses of morphine don't help with cognisance and I have made rather too many similar blunders, while under the influence. I have kept well away from machine tools, but hopefully I can safely get back to machining soon.

May I congratulate you on your book. It is full of useful information for many different lathes used by model engineers. The book itself is beautifully produced and must be one of the best presented model engineers book of all time. I heartily commend it to everyone on the forum

Regards,

Andrew.