Variable Belted Extruder

thingiverse

Belted Extruder Gear 3:1 Easy swapable filament size by just changing one front part. Additional Parts: 2 Pcs Ballbearings 695ZZ: 5x13x4 1 Pc Screw M5x35 Hex-Head 1 Pc Lock Nut M5 1 Extruder Driver Gear Wheel 40 Teeth, 11mm Bore, 5mm (MK7 / MK8) https://www.banggood.com/de/2Pcs-MK7-MK8-Extruder-Driver-Feeder-Gear-Wheel-40Teeth-11mm-Bore-5mm-For-3D-Printer-p-1036149.html 1 Pc Ballbearing V-Nut 623VV (1.75mm Filament Size) 1 Pc Set Screw M3x12 (Axis of Ballbearing) 1 Pc Ballbearing V-Nut 624VV (2.85mm Filament Size) 1 Pc Set Screw M4x12 (Axis of Ballbearing) 9 Pcs M3x25 2 Pcs M3X45 6 Pcs Square Nut M3 1 Pc Hex Nut M3 (Locknut) 4 Pcs Spring https://www.banggood.com/de/10pcs-Spring-For-3D-Printer-Extruder-Heated-Bed-p-995375.html?rmmds=search 2 Pcs Bowden Coupler M6 (For 1.75mm Filament) 2 Pcs Bowden Coupler M6 or M10 (For 2.85mm Filament) 1 Pc Motor NEMA17 1 Pc Pulley 20T 1 Pc Closed Belt GT2 200T or 90T Project is still a work in progress. Some parts may change, version for 2.85mm not tested yet. UPDATE August 24, 2017: Added a smaller main body to be used with a 90T GT-2 belt. UPDATE November 11, 2017: Some major changes on vari_head_285 to mount push fittings