I originally purchased a Shapeoko 2 and used a Dremel 4000 as the spindle. With it I was very pleased to be able to make 10 mil traces out of the box with 20deg x 0.2mm v-bits. With the X-carve upgrade kit, I purchased the acme lead screw and the 24V spindle. I have only upgraded the z axis to the x-carve components, but the results so far have been lacking.
First, is the DC spindle supposed to vibrate the entire machine? With the dremel the vibration was mainly just in the dermel itself, but with the spindle there is significant vibration passed to the X carriage, the Y axis, the base, and even the table.
Second, trying a test board I couldn’t even do 16 mil traces. I just measured the runout of the v-bit to be over 4 mils, which seems extremely high. The website lists the ER14 collet as 0.6 mil total runout, but is that just the collet or the collet when attached to the motor?
Here is a photo of a test board done before the upgraded spindle.