Paul,
I appreciate that, but it's kind of irrelevant, and confuses most people into thinking you are controlling the motor at that resolution. Frankly, I can not recommend enough that Losmandy owners upgrade their Dec encoders and see what results they get. It's such a simple mod. Moreover, people should zero out their backlash. The Allen wrench method is balls on accurate. Zeroing backlash is what 10 micron mount do in their software.? If you change the slew setting to 1200 you can also move just as fast. Sticking with the 25:1 gearboxes make that possible.
?
Upgrading the Ra encoder was a bust. Folks should focus instead on elimination the large period errors. (80s (OPW), 240s and 2600s.? I've shone a light onto those problems and how I dealt with them. If you follow the steps I took you will have no use for PEC. The gearbox upgrade and thrust bearing upgrade are a must if you want a calm Ra guiding curve.? ?
All the best,
Peter
