pg.
28
Adjust the lower wheels
Once they are in place, the wheels need to be
rotated into position so that they tightly engage the
rail. This allows for smooth, controlled movement
in the Y axis and maximum accuracy.
Use the flat wrench included with your hardware
kit to slowly turn each wheel clockwise until you
feel the wheel engage with the rail.
Use the wrench to hold the each wheel in position
while you tighten the nut on the wheel stud.
Test the wheel engagement by rolling the YZ car back and
forth across the gantry. Grab the wheel with one hand,
using light to medium pressure. If the wheel stops and
“skids” along the rail, tighten the wheels
slightly
.
Do not over-tighten the wheels. The YZ car should glide
smoothly across the gantry; if you feel it binding up at any
point then loosen the wheels slightly until it moves freely
again. Once the wheels are adjusted, hold them in place
with the wrench and double-check that the nuts are
tightened securely.
Assemble Your Shopbot PRS Gantry Tool 2015 02 27.Docx
© 2015 ShopBot Tools, Inc.
