3 ms·

And if the fan is well balanced and on magnetic bearings, there should be no vibration. The main thing I contend with is backlash on my mount - imperceptible a

And if the fan is well balanced and on magnetic bearings, there should be no vibration. The main thing I contend with is backlash on my mount - imperceptible amount of play in the worms means I have to overbalance the scope significantly. As I said elsewhere in this thread, distant quarrying (oh, and moles) cause far more shake than a good fan.

polyfractal 10y ago
Ugh, yeah, backlash on mine too :( I'm actually in the middle of rebuilding my mount to help with periodic errors and backlash. Replacing a bunch of bearings, re-greasing, replacing the direct gear train with a geared-belt system, etc. Speaking of... I need to finish that up soon before winter season starts in earnest!