Diy 4th axis rotary table using 100mm chuck with minimal backlash

[mekanik]

Hi M8
Check to see if your eccentric is at it's maximum travel, if it still has some throw left you could strip the unit down and try lapping the pinion and wheel with solvol autosol or similar, and then if needed make a new eccentric with slightly more throw (if you have to remove a lot of material for a snug fit between pinion and wheel)