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  1. G

    What have you been doing today?

    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
  2. G

    Time for a new Horizontal Hit and Miss engine

    Brian. Could you not trepan the middle out? Graham
  3. G

    Hello from North Devon

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

    Where to buy HT wire for spark plug in mainland Europe?

    Xander Hemingway kits UK Graham
  5. G

    Thread Identification

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

    A new attempt at making piston rings

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

    A new attempt at making piston rings

    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
  8. G

    WHAT TYPE OF COLLET IS THIS

    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
  9. G

    WHAT TYPE OF COLLET IS THIS

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

    WHAT TYPE OF COLLET IS THIS

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

    WHAT TYPE OF COLLET IS THIS

    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
  12. G

    WHAT TYPE OF COLLET IS THIS

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

    WHAT TYPE OF COLLET IS THIS

    Is this better? I am constantly learning. Graham
  14. G

    WHAT TYPE OF COLLET IS THIS

    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
  15. G

    WHAT TYPE OF COLLET IS THIS

    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
  16. G

    Hello from Somerset, UK.

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

    Hello from Somerset, UK.

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

    Hello from Somerset, UK.

    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...
  19. G

    Hello from Somerset, UK.

    Hi All I live in Brixham Devon and have been a model engineer since I was made redundant/retired in 2003, 2 years before I was 65. Indentured apprentice, shop floor machinist on big machines, work study , production control, planning etc. I have a really well worn Colchester Master which I have...
  20. G

    BA thread form

    Hi All Where I used to work,which was a large engineering company(now gone) as an apprentice everything was BSW OR BSF. Then when working on the shop floor the company decided our main market was America all change to UNC OR UNF. Then came the Common Market all change again to METRIC. But only...
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