Hi All
I have started this as a new thread.
I am building an open source machine to machine a flat surface on a steel tube or an applied strip on that tube.
Currently at version 54.
Below is a link to GrabCAD Below that is a link to MYCNCUK where there is a discussion on using stretched wire and a USB microscope as used in the machine.
Regards
John
https://grabcad.com/library/machine-...der_id=9681130
DIY Laser levelling using webcam and laser level