I have vfd 65mm spindle and have not had any issues that I could not overcome until now. I have it hooked up to my Shapeoko Pro 5 machine. I am using the IDC Woodcraft 1.5 surfacing bit and have noticed that as I surface my walnut or maple boards the spindle is slowing down and eventually stalling out mid cut. I am using the listed feeds and speeds for the bit. I have always noticed that the spindle shows it is operating slower than the amount I have programmed for any bit that I use.
Any thoughts on what is going on or how to fix the issue. I would be very grateful.
PS. Also when flattening boards only in a East to West direction I am leaving a tiny line in the bottom of the path (any help with fixing that as well be very welcome.
sounds like too much load for the rather hefty bit. Recommend to reduce feed (and speed), reduce depth of cut to fractions of mm, and also reduce plunge rate to a minimum, use ramping.
That bit is meant to be the last surfacing bit, not to remove a lot of material.
In regards to the line in the path: either the bit is out of alignment, or the machine is not adjusted properly. Check for mechanical precision, re-tame.
Recommend to post some pictures here if you did that already, or did not help.
