On Thu, Apr 8, 2021 at 07:24 AM, Henk Aling wrote:
Could be.? It could also be the counterweight bar that hits a resonance.? I will attach a laser pointer to various parts to find out if my spring loaded worm actually remove the backlash.? I can also do the same test, attach the pointer to the counterweight or the scope to see which part is vibrating most.
I can save you some time right now by telling you not to bother.? A few arc-seconds of vibration translate into a few x 10^-2 mm of movement on the laser pointer spot.
