Hello,
I purchased a used Sieg X2 mill. The previous owner retrofitted it for
CNC using the
plans from Hossmachine.
Its using a Gekko 540 to drive the steppers.
I've been having problems with it a low feed rates. I was attempting to do a
pocketing
operation to create a 0.6 inch hole with a 1/4 end mill. Each pass ended up
offset from
the previous one.
Not understanding what was happening, I substituted a pen for the end mill,
removed the Z
axis movement, and drew the following image at different feed rates:
http://i52.tinypic.com/28ba821.jpg
At F20, it looks pretty good. The center is cleared out, followed by the outer
portion.
The slower the rate, the greater the positioning error.
Any idea what might wrong?
Thanks,
Andy
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