i am working on a small home made cnc router.my design work is done mostly
by looking at other peoples designs.i have the x and y axis working fine.have
not got motors on yet.but they turn freely.no added friction so i think they
should funtion good.i have a problem with the z axis it is made with a 1/2 inch
lead screw that rotates alright,but i am only getting about 2.5 " travel before
it binds up the z-axis assembly is about 5" height.what can i do to gain more
travel?