Dual Gear Extruder

thingiverse

A problem with the dual gear extruder mods is that the gear not attached to the stepper motor grinds into the aluminum frame causing wear to both parts, and putting the stepper motor at risk of damage from shavings. What I've done to combat this, is shave down the gear very slightly, and introduce this washer below it. Dimensions of the washer are: 0.5 mm deep, with a radius of 1.7 mm and diameter of 3.4 mm. Current prints are going very smoothly and I will update post on expected wear time, and when to replace the washer.