Thanks Peter
Fusion 360 is an Autodesk product it is free to the non commercial and student user.
I was a Senior Civil Engineering Draftsman before computers were common place on everybodies desk.
My drawing technology was Rotring ink pens on Tracing paper or film and expensive scale rulers.
I seem to recognise your name did you produce drawings for the U3/4 Threading Attachment.
Because I just 3d printed the gears for it
