Advice please. Hints tips , how to gcode a 1/4 turn helix on a shaft

[Stuart]

Chuck

My bad the answere was given in one of the links by John Stevenson MBE ( he says it motor bike engineer )

I should have updated this to say so

But thanks for posting as is my want I copy these snippets into a file for future reference

When I start the actual job I will post the result

Stuart