Extruder Calibration Tool

08/07/2013 - This has been superseded by Version 2 of the extruder calibration tool found here: http://www.thingiverse.com/thing:114614

This is a tool I designed to help with the calibration of the extruder on the Felix Printer. I was frustrated with inaccuracy of marking filament and trying to measure with my callipers.

This helps by providing two flat surfaces that the vernier callipers can easily measure between. It is simple to install and remove without having to remove any filament