Online Box Making:
https://en.makercase.com/#/
https://makeabox.io/
http://jeromeleary.com/laser/
https://www.templatemaker.nl/en/
https://www.festi.info/boxes.py/
https://clementzheng.github.io/joinery/
https://boxshot.com/dielines/
Gluing stuff – http://www.thistothat.com/
Open Source 3d Software
Blender 3d –http://www.blender.org/
OpenSCAD – http://www.openscad.org/
Autodesk 123dMake – http://www.123dapp.com/
Parametric Gears
OpenSCAD library – http://www.thingiverse.com/thing:3575
Gear PDF maker – http://woodgears.ca/gear_cutting/template.html
Interactive Gear Designer – http://geargenerator.com
Compound Miter Saw Calculator – http://jansson.us/jcompound.html
Documentation on Sensors for Projects – https://github.com/morphogencc/human-instrumentation-project
Grasshopper Tutorial – http://www.lynda.com/Grasshopper-tutorials/Up-Running-Grasshopper/174491-2.html
Foam Coating recipes – http://calartsobjects.blogspot.com/p/foam-coat-recipes.html