On Mon, Jul 26, 2021 at 05:49 AM, alan137 wrote:
Then again, I am using a BIG 12" F4 tube newtonian.?
Allan,
I'm excited to see that you can carry the bad boy!.??I think I might mount mine to the coming weeks.?
Do you have plans to upgrade the optical encoder to 1024. I think you will see a very noticeable benefit. It's a $65 investment and you do not have to remove anything from the drive other than the motor end plate can do everything insitu.? It would be nice to have a second reference point to go by. With a minimum step size of 0.56 arc-sec and I would imagine longer settling times due to the weight, having the ability to make smaller 0.14 arc-sec steps would be beneficial. I've ended up with a min step size of 0.05 in PHD2, compared to 0.4 before I made the alteration. With good polar alignment I would expect on only having to make little tweaks.?
Here is my guide graph from last night showing just how small the corrections are and lack of reactionary overshoots. The scale is +/- 1s if the scale is not readable
?
I found it useful to remove the motor and use my fingers to judge the worm mesh to get both side touching. It's such a fine adjustment thing. Also, I would highly recommend changing out the thrust bearing. It made a large difference for me.
Peter
