DoublyDrivenExtruder
thingiverse
Doubly Driven Pressure Adjustable by Nema11 Motor and filament feed rate sensor. Shapeways http://shpws.me/TxWz DoublyDrivenExtruder Two bolts drive the drive_pulleys that drives the filament into the hotend . Driven by a gear set and belt and one nema17motor. Pressure Adjuster Reduces pressure in rotations of stepper. Feedrate Sensor Uses a continually rotating high precision 100K potientiometer Marlin Firmware and Closed Loop Stepper Motor https://reprap.org/forum/read.php?415,855273 Marlin/Marlin/Configuration_adv.h Extruder(E0) Enable Pin External Pin to signal move complete https://github.com/pghauff55/DoublyDrivenExtruder/
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