PANEL PRO
45
the bearing and the carriage. Take care that the smooth machined surface of the
bearing is against the carriage.
Reinstall on the rail with the adjustable end loose.
Snug the adjustable end mount screws
making sure that you don’t pinch the washers
on the adjustment screws.
Roll the carriage back and forth on the rail
while tightening the adjustment screws.
When you are getting close, you will feel a
change in rolling resistance, and maybe
some roughness as the balls go around the
corner. Adjust on the other screw and the
feel should be smoother. Very gently work
back and forth until there is smooth rolling
with a slight drag.
If you go too far, loosen the adjustment
screws, and then the mount screws and
repeat the adjustment.
When loose, the bearing blocks should roll freely. When properly tightened, they
should have a light drag. If the adjusting screws are unequal, a heavy notchy feeling
will be felt.
Do not remove the bearings from the shafts or ball nuts from the ball screws as
this will liberate bearing balls! $$$$!
Adjust x to y axis square:
To test square, mount a stiff piece of material close to the Y zero end with 3 corners
clamped. Use a known good carpenter square to get fairly square to start with, then
make a cut along 2 edges.
Thoroughly deburr while leaving the piece clamped in, and test the square with a 6”
machinists square or a known good square.
To adjust, clamp a dial indicator on the motor end of the Y axis and zero before
loosening any screws.
