Pocket NC V2 - Machining;Performance Issues; Tool Chatter During Cut; Spindle Slowdown During Cut; Cutting Location Accuracy

Section 2: Machining/Performance Issues
Problem
Explanation
Possible Solution/Things to Try
My tool chatters during
the cut.
Vibration causes the cutter
to not cut smoothly. This
vibration is due to the
natural frequency of the
tool/spindle.
1. The feed and speed, and/or
step-down and step-over
need to be adjusted. See
the feeds and speeds
tutorial for more
information.
2. Turn the spindle speed up.
3. Adjust the feedrate, usually
moving slower will be
smoother, but this is not
always the case
4. Increase the step-down,
taking a deeper cut into the
material
5. Increase or decrease the
step-over, the width of the
cut. Typically the ideal
step-over is about 60% of
tool diameter.
Spindle sounds like it is
slowing down during the
cut.
The spindle power is
insufficient for the amount of
material being removed.
1. Decrease the feed rate in
5% steps until the spindle
stops bogging down
2. Decrease the step-down
and step over in your
toolpaths.
3. Switch to a tool with more
cutting flutes.
The Pocket NC is not
cutting in the location
that I expected.
1. Make sure that the origin
for your toolpaths is the B
table offset/machine origin
point of the Pocket NC.
This is a point in space
about 0.839 inches above
the center of B table.
5