30-08-2020, 08:05 AM
Easier method - Cut off a square of flat metal, correct thickness. Trim off corners to 45degrees. Araldite onto end of a bar which has been faced off in the lathe and just smaller than required diameter. Turn to size plus a few thou" . Remove disc from bar - heat ?? Find/ make a washer 1/8" thick with a hole just a bit smaller than the disk. Open your vice jaws so you can get Washer, Disc,Ball pin hammer in-between the jaws and tighten to dome the disc. You should now have your Welch Plug.