Hello Sprinter,
I`ve recently got myself a taig (peatol here in the UK) I want to convert it to a CNC machine but keep the manual function. I`m interested in your latest design but could I just ask a couple of questions, bearing in mind I`m learning in engineering and not only that but this is my first fully CNC attempt (only moved single axis up to now)
1. Could you possible send any more pictures of the X-axis (main carrage) traverse mechanism. I know you have posted a few pictures but I can`t see how the lead screw is supported at the rear end of the lathe. Also how is the lead screw engaged? I like the idea of keeping this on the back as it seems to keep it out of the way. I also guess if you can disengage this, full manual control will be gained.
2. The frame you have used it 20/40 frame you said. I`ve done a search for UK suppliers and is this the stuff:
0-132-2020 Aluminium Structural Sections Profiles Retrofit Frame | World of CNC - Marchant Dice
I presume it is about 400mm long as the bed of the lathe is this length, what width did you use - I have noticed from your pictures that actually the frame is quite wide.