Printrbot Simple Metal Flexible Filament Extruder Arm
thingiverse
After experimenting with NinjaFlex SemiFlex and numerous add-ons found on thingiverse, I was unable to print it for long without buckling. So, I took charge and designed a solution. This is a replacement extruder arm for Printrbots that has been modified to better suit printing flexible filament. The shaft guiding the filament to the drive gear is longer than the original aluminum arm's and the flat parts sandwiching the bearing encroach more on the drive gear, eliminating any buckling. V4 pairs well with thirdhorizon's Printrbot Flexible Filament Direct Drive Extruder http://www.thingiverse.com/thing:403438. V3 works in combination with EricPrint's Printrbot NinjaFlex Pilot Upgrade http://www.thingiverse.com/thing:730243. It is not limited to printing flexible filaments and can be used with PLA, ABS, etc. Even fits underneath my Locking Extruder Handle V2 http://www.thingiverse.com/thing:724326.
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