Note: Any tips will go straight to our charity "TReND in Africa" (www.trendinafrica.org) which is dedicated to fostering university level science education on the African continent!
Arduino Uno casing which fits a single 9V battery. The case is designed to nicely fit this joystick shield on top:
I use this set-up to drive my 3 axis manipulator:
(here you will also find the Arduino code I use)
(Note that in the pictures I have added a power switch to the shield myself, this does not come with the shield kit.)
Also, check out our dedicated lab.equipment tinkering page: http://open-labware.net
fixed slight misalignment of USB/Power slots (v3)
There are 2 stl files with different tolerance settings. Use the "tol1" one for less precise printers (tol 1 = tolerance of 1mm). Also, you can always change these things in the OpenSCAD file (parameter "tol").