Work on my lathe is progressing, now I have both axis properly assempled and equipped with stepper motors.
The web search for firmware and PC application resulted in
this project, lathe is controlled by GrblGru.
Is there anything else/better available? GbrlGru simulation is behaving strangely when I imported very simple LibreCAD drawing (dxf), the 3D model looked OK on the screen but the tool movement would damage my machine in reality.