20170704 Jupiter

Very poor seeing after a small thunderstorm, so just to test the new motorized  focusing solution.

1247 (UT), C5 with 2x barlows... the direction of the wind could be seen easily.

My Teclast has its bluetooth dead, I have to use another notebook for image capturing.

I've tried to use a USB hub (powered) to add a bluetooth dongle plus the ASI, but then it won't have enough power to drive... I guess the powered hub is not really powered.

C5 motorized focusing

The Nexstar mount is not something very solid, and on focusing, the image will shake.  Motorized focusing is a good solution.

I believe a few pictures are better than words, basically, this is a N20 type DC geared motor, plus pulley and belt.

Here is a short video to show the end result, also to demonstrate the backlash of the system.

I will probably add a pulley on the focuser shaft to provide a better coupling.