8mm Jag's Yet Another Extruder Filament Drive
thingiverse
Jag's "Yet another extrude filament drive" has been adapted to utilize an 8mm bearing on the idler arm. This modification is ideal when only one 606 bearing is available or if 8mm bearings, commonly found in longboards and skateboards (ID 8mm, OD 22mm, width 7mm), are accessible. Nov 20, 2012 update suggests MarcusWolschon's enhanced version for stronger parts. To assemble, print and clean up the model before following Jag's instructions (http://www.thingiverse.com/thing:7113) with a substitution of a 7mm hex head screw (or 6mm if required) for the idler arm axle; support for the idler arm is already included.
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