This is a printable two piece micrometer with a travel length of 2.5 inches. It is marked on every 5 thousandth but you can fairly easily infer down to the thousandth.
Hopefully I can create a metric version soon.
Also if enough people request it, I’ll try to make a smaller 1 inch version.
download the files on: http://www.thingiverse.com/thing:1257186
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!