Bicolour Thread Inserts MMU2S Mod

thingiverse

Here you can find my bicolour MMU2S unit version. It uses thread inserts and the main improvements designed by the MMU2 community published on Thingiverse: - MMU2_Unit_Assembly (improved for TPU filament: https://www.thingiverse.com/thing:4441611) - Idler (with Bondtech gear, to prevent breakings) - PTFE Cutter (19.5mm) to redo the front PTFE tubes (optional) - MMU2 Selector with thread inserts (https://www.thingiverse.com/thing:3528314) - PC-M10 passthrough (http://www.thingiverse.com/thing:3233579) - Thumbscrews for Idler Tensioning (http://www.thingiverse.com/thing:3324321) - MMU2 Spinners (https://www.thingiverse.com/thing:3720526) - Front PC-M10 cover (http://www.thingiverse.com/thing:3654786) Setup 3mf files included. If you don't use my 3mf files remember to split the stl file to parts. ###Mount Instructions:### WARNING: The front selector cover must use M3x8 screws, longer screws can damage FINDA sensor!!! You need thread inserts like this: https://www.amazon.com/Products-Insert-100pcs-Injection-Molding/dp/B07KP86T8G/ref=sr_1_20?dchild=1&keywords=thread+inserts+m3&qid=1617532446&sr=8-20 Quantity by part: - MMU2_Selector (7 inserts) - MMU2_Unit_Assembly (14 inserts) - MMU2_Idler_Body (2 Inserts) Total: 23 M3 thread inserts To mount the idler pay attention to the screw gear orientation (pictures 12th and 13th), it uses one nut and a M3x8 screw to secure the own gear. The gear screw is used over the flat part of motor axe. There are two idler options: - Bondtech Drivegear (standard on MK3/S) - Bondtech Motor Gear (the one used for the 3:1 ratio on Bondtech Extruders) To mount the entire unit follow the original Prusa MMU2 assembly manual. Happy printings!! ###Updates### 2021/04/08: - Improved Idlers 2021/04/09: - Improved Electronic Cover **2021/04/14:** - Improved Selector