Top mounted spool holder for Anet A8 (with optional filament sensor swivel arm)

thingiverse

This spool holder for the Anet A8 printer saves space and makes it easy to place and remove a spool. The design uses bearings to reduce rolling resistance. A filament runout sensor can be added. It is mounted on a 3 DOF (2x rotation and 1x translation) swivel arm, which reduces mechanical strain on the sensor and extruder during printing. When not in use, it can be rotated 180° for storage. I used this Octoprint plugin: https://github.com/kontakt/Octoprint-Filament-Reloaded Part list: ---------basic spool holder------------------------- Printed---------------1x base.stl1x bushing.stl1x roll.stl1x wedge.stl Other---------------150 mm - M8 threaded rod (included with anet A8)4x - M8 nut (included with anet A8)2x - 22x8x7 mm bearing (https://www.banggood.com/nl/8pcs-22x8x7mm-Ball-Bearings-608-ABEC-11-Black-Ball-Bearings-p-1113596.html?p=4E051627338352015109) Filament sensor add-on------------------------- Printed---------------1x pivot.stl1x joint.stl2x swivel-arm.stl2x sensor-holder.stl Other---------------1x - filament sensorhttps://www.banggood.com/nl/Lerdge-1_75mm-Filament-Material-Run-Out-Detection-Module-Sensor-For-3D-Printer-Parts-p-1323359.html?p=4E0516273383520151091x M3x16 hex socket bolt1x M3x25 hex socket bolt2x M3x30 hex socket boltsome M3 nuts a collection of M3 hardware i used:https://www.banggood.com/nl/442pcs-M3-Stainless-Steel-Hex-Head-Srews-Bolt-Nuts-Hexagon-Handle-Tool-Kit-p-1076216.html?p=4E051627338352015109 Revision History----------------------- Update 08/10/19: Update 11/06/18: Added a 5° wedge to compensate for play and bending under weight.Update 10/31/18: Added larger roll_45mm.stl