clifton2 shares:

OK so here is my bluetooth remote focus control for the skywatcher for under £20 ($30) which is ‘marginally’ cheaper than similar commercial offerings…….
Bear with me while I tweak various files for upload.
All the electronics are off the shelf arduino modules so the only soldering is the connections (although mine is put together with Dupont connections as its a prototype)

download the files on: http://www.thingiverse.com/thing:1491858

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you’ve made a cool project that combines 3D printing and electronics, be sure to let us know, and we’ll feature it here!