C/2020 F3 Comet

Bright comet, took this from my backyard at 4:40am

Fix warm motor issue ...

I found my microtouch motor got warm after several minutes. I turned off the duty cycle from the robofocus controller but no help. After debugging, I found I accidentally put the useless (I guess 12v) yellow wire into the motor. After removing it, the motor still works and no more warm.

2020/05/24 Finally - new motor focuser for CFF 250 RC

With the new purchased focus motor, finally address the problem of focus position slipping.

I re-use robofocus controller on the new motor and here is how to wire it correctly.

https://www.cloudynights.com/topic/369439-microtouch-focus-controler-compatability/

Works great. Happy.

Test CFF 250 focusing again

2020/April New Toy ...

12.5 Teeter's Telescopes Dob

2/15/2020 Try to split Sirius ...

Try with my 10" Dob but fail (again)... Making an aperture mask and wait for a better seeing night

2019/11/11 Mercury Transit