Hi there, thanks for this project. I’m building one for me to use with AstroArch and KStars and I’ll give other PCBs and some components to friends.
I like the speed reached with fine tuning, but what about introducing an acceleration curve to be sure to not lose some steps when the focuser starts moving at high speed using pulley and belt?
I use the acceleration profiles (USE_SMOOTHSTEP_ACCEL) on Ardufocus and works fine.
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After being on this path since 2014, countless thousands of hours of code and refinements, I believe that acceleration provides few if any benefits to the focuser code. The focuser will not lose steps when configured and used with the recommended steps. There are lots of things that can be attributed to lost steps, I have yet to be shown anything that these lost steps can be attributed to the software.
There is a huge difference between what sounds and feels good to actual measured performance.
Regards
Robert
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi there, thanks for this project. I’m building one for me to use with AstroArch and KStars and I’ll give other PCBs and some components to friends.
I like the speed reached with fine tuning, but what about introducing an acceleration curve to be sure to not lose some steps when the focuser starts moving at high speed using pulley and belt?
I use the acceleration profiles (USE_SMOOTHSTEP_ACCEL) on Ardufocus and works fine.
Hi Matteo
After being on this path since 2014, countless thousands of hours of code and refinements, I believe that acceleration provides few if any benefits to the focuser code. The focuser will not lose steps when configured and used with the recommended steps. There are lots of things that can be attributed to lost steps, I have yet to be shown anything that these lost steps can be attributed to the software.
There is a huge difference between what sounds and feels good to actual measured performance.
Regards
Robert
OK, thanks for your answer, that's good to know.