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I too have gone through similar types of illness. You have a much bigger and varied workshop and I wish I could refurbish lathes like you can. I am currently making a 1.5 inch to the foot Ransome and Marles Thresher and still have a long way to go. All the best Graham

Nice to see you back.

Got my teeth deep cleaned today. Monday at hospital for an assessment for electric shock treatment for an irregular, irregular heartbeat on Tuesday so if the lights go dim in SW England on that day blame me. Graham

Brian. Could you not trepan the middle out? Graham

Gary Welcome, I also live in Devon, (Brixham) and exhibit in the model marque tent at Churston steam rally. Graham

Xander Hemingway kits UK Graham

Just a thought 3/4 x 20 tpi unef or 3/4 x 20 tpi bsc ( A BICYCLE THREAD) Grayhil

I have been reading your post with admiration for your perseverance and patience. Congratulations Grayhil

Hi Brian I hope at the end of your ring saga you will write a preferred method. I have made several engines and only two have run and they have all finished up for show and not for running, always through lack of compression be it rings or valve seating. Graham

Hi All The collet has a 1.75" x12tpi external thread by 13/16" long and pulls into the collet holder. As per my enlarged sketch. It is not on the list (thanks) Graham

Comstock They are 2.812" long O/A not 2" Blame my attempt at drawing them!!! Graham

Hi All Thanks for all your replies. I will try making some split collets to fit into them for smaller work. Graham

Hi All It came in a home made box from a pile of junk in an old shed and was free. I do not know what machine it was originally from. I made an adaptor and fitted it to my Colchester Master lathe. I come from GB. Graham

Thanks Dave But what make of screw machine, and are they still made. Graham

Is this better? I am constantly learning. Graham

Hi Craig They are too small, the end thread is 1.75 inches diam. x 12 tpi for closing the collet. Thanks for trying. Graham

Hi All I have a collet set from 5/16 to 1 1/2 inches in 1/16 increments and am having difficulties identifying the type of collet it is. (IT IS VERY OLD) Anyone have an idea? Graham

Steve I goy mine off ebay about 12/15years ago (cheap ones) and they are still going strong. Graham O

As promised As a lathe (2AXIS), as a mill (3 AXIS), as a mill with rotary table(4 axis). Graham O

Graham T The machine was used in the latter part of its life to grind concrete samples for testing (that is why its worn). Fitted new ball screws to the cross slide and TOP SLIDE as I use the top slide for parallel turning as a lathe. The saddle is as normal and fitted with a Travi dial. By...