Guys, I have an OpenBuild C-Beam machine that I have modified to give me a little extra depth and I have replaced the dewalt router with a VFD spindle router.

I have some lag between the bed moving and the spindle cut catching up with the movement. Lag is not noticeable on the X axis but on the Y axis there can be significant lag depending on cut depth.

The origin of the Lag is on the Z axis where there is flexing of the Cross beam as the cut is being made.
Is this normal to have some flexing and if it is can it be quantified?

Not sure I explained this correctly.



TIA