DIY Autofocuser...recommendations needed please

[dazzystar]

Hi All,

I've been searching and have discovered many snippets of info of people designing and building their own USB auto focusers and was wondering if this is something I could make for my Startravel 102 scope which uses a rack and pinion focuser. I have a 3D printer pretty much sitting doing nothing and am quite handy with a soldering iron. What I'm very very bad at is designing and coding so am looking for pointers to someone that has published a DIY kit I can make. Could anyone help? As I'll be using it with NINA it must be ASCOM compatible (or is that INDI as well?).

Cheers

Daz

[CedricTheBrave]

https://sourceforge.net/projects/arduinoascomfocuserpro2diy/

[dazzystar]

thanks very much!

[CedricTheBrave]

1 hour ago, dazzystar said:

thanks very much!

if you choose to build one and wish to use the ULN2003 version let me know as I have a spare circuit board you can have

[adyj1]

... and I have a spare circuit board for the esp32/DRV8825 version. 

[dazzystar]

Thanks guys. I'm going to chomp through a document Robert Brown kindly emailed over and see. The biggest problem I see at the moment is the physical mounting of it to the ST102 scope and how / if it can connect to either the knob or bar of the focuser. Have any of you any thoughts on this / done this on a similar scope / focuser?

[CedricTheBrave]

have a look on thingyverse to see if there are any mounts for your scope

[dazzystar]

I've actually found another focuser on here which I'm going to look at building. It's BullsEye DIY Focuser by Kari Brown.