In Part 2 I will turn down 50mm round stock ready for 12mm x 1.75 left hand thread.
Will use the 3 wire method to check thread as I go. Explanation of the 3 wire method. Finish off flanged nut with left hand thread on the lathe. Start to turn down 10mm thread on main spindle then rip stock from the lathe damaging all parts so start some again. Oh well good practice. Finish and install on my large belt sander.