ShopBot PRS Assembly Manual Page -36
If You Have a High Frequency Spindle:
The spindle will come fitted with a custom aluminum backing plate. This plate attaches to
the pre-drilled holes at the bottom of the Z axis using 6, 5/16” socket-head bolts. These
bolts pass through the beam and into the plate. As they are tightened, they will seat at the
bottom of the groove in the slot..
• Pull the Z axis beam down to expose the back of the 6 bolt holes. Clamp it in position
so it does not pull back up while you are working on it. Hold the spindle to the beam
and start the 6 bolts into the plate. Note that these bolts have no washers.
• Pull the plate up evenly by tightening all the bolts gradually. Then do a final
tightening of all the bolts.
• To mount the spindle, move the gantry up to the far end of the table. Pull the Z axis
beam down to expose the back of the 6 bolt holes. Clamp it in position so it does not
pull back up while you are working on it. Hold the spindle to the beam and start the
6 bolts into the plate. Note that these bolts have no washers.
PRSAssembly080922.doc Copyright 2007,2008 ShopBot Tools, Inc