20x40 (2040) Top Mount Spool Filament Holder

thingiverse

This design is meant to be mounted on a 20x40mm aluminum extrusion end commonly used in small printer Z-Axis designs, allowing filament pull on the extruder to be more horizontal than vertical. I found that there was too much slipping on my Tevo Michelangelo even after swapping out the OEM plastic junk extruder for an all aluminum MK8 with a 40-tooth drive gear. This almost zero-friction spool holder was part of the solution, along with changing the 40-tooth drive gear to a 26-tooth one on the MK8 Extruder. CAUTION: Depending on the printer, it may be necessary to add weight to prevent tipping due to the center of gravity change with a full 1kg spool on the roller. Original design files are included in various formats - Fusion360 native files and STEP versions. Small Build Compatible (150x150 mm) Version - https://www.thingiverse.com/thing:4002363 Mk8 Extruder Drive Gear 26 Teeth Copper 11Mm X 11Mm: https://www.amazon.com/Extruder-Drive-Copper-Printer-Makerbot/dp/B074K45PZX Extruder Aluminum Feeder Kit with Spring Adjustable Bolt, Compatible with 1.75mm Filament for 3D Printer MK8 Bowden Extruder Frame: https://www.amazon.com/Extruder-Aluminum-Adjustable-Compatible-Filament/dp/B07KQ6FVS3/ref=sr_1_1?keywords=Extruder+Aluminum+Feeder+Kit+with+Spring+Adjustive+Bolt%2CCompatible+with+1.75mm+Filament+for+3D+Printer+MK8+Bowden+Extruder+Frame&qid=1573921594&sr=8-1