Neale Does this help:- For Science » LinuxCnc – Touch plate – Part 1 I started with Linuxcnc and still use it for my mill but I had to change to Mach3 for the router with it having 2 screws on X and homing with two screws is not easy in Linux unless the screws are connected with one motor and hence one belt. I it wasn't for this I would have kept with Linux. When I get some time I will have a go and see if I can sort it out. There are a few people on here that do use Linux and are happy with it. Clive