Hi all
i just built a big router table its working area 1500 mm for x and y axis 200 mm for z axis
i used two parallel large slide pars for x axis with two stepper motors and one for y axis and a small one for z axis
i want to thank art soft for mach3 it is a very nice software.
i did the open sign with vcrave demo it is the 1st work i do with my machine i got a good result

but i faced a small problem with changing the tool bit i lost the zero hight so what is the best way to change the bit and maitain the zero hight?

see the pics
thank you
ialbazae