Stability during carves... acceleration vs. jerk?

I have a 1F Elite Foreman. Anyone have any advice on how to help stabilize the Z axis assembly during carves? I have checked for loose bolts, etc. and everything is good, yet I continue to have issues with tool marks during carves. For example, if I do a profile cut and use tabs, the end mill will leave ‘dents’ in the edge of the piece at the beginning and end of each tab. Additionally, when I use my Jtech laser, the laser jiggles when the machine is changing directions, and it causes squiggly lines in the engraving. I have already reduced the acceleration settings to 1/2 of factory settings, and have set the PPR according to the most recent guidance from 1F. It did help some, but not enough.

I have read other posts which seem to indicate a difference between acceleration and ‘jerk’ settings on the Buildbotics controllers… but the MASSO only offers a setting for accelerations settings as far as I can tell.

Another example is the end mill will leave circular indentations at the bottom of a pocket. It’s as if when the Z axis moves up and down, the sudden start / stop of the motor causes the spindle to flex up and down if that makes any sense. I have the PWNcnc ATC spindle and I’m starting to wonder if it’s just too heavy for the machine.

Thanks,
Mike

1 Like

One thing you can try is go to 3d tabs. It should eliminate the tool marks.

2 Likes

Thanks Gary… I will definitely try that… and it makes sense. Don’t know why I didn’t think of it.

2 Likes