[Open Source] 3D Printer TPU Feeding Assist Module

Cost 30-40 RMB.Please respect the open-source license: Attribution-NonCommercial-ShareAlike CC BY-NC-SA 4.0
All plug-in components. The soldering difficulty is extremely low, it does not use MCUs or microcontrollers, the functions are relatively simple, and it's not very smart. At this price, don't ask for too much, what more do you want~~~

2026/5/26 update: Added 6pin mx3.0 terminal block, optional, if needed, please purchase mx3.0 female connector 6pin 2*3 bent pin specifications yourself

Known issues are as follows: 1. Current tests are with 85A, softer materials were not tested as they were unavailable, it is uncertain if softer materials are supported

                               2. There is no empty printing detection function designed, try to estimate the remaining filament well, otherwise the assist module motor will continuously idle

Each component has precise silkscreen printing, assemble according to the instructions. During assembly, the mx3.0 terminals were not soldered yet as they had not arrived

Circuit board open-source address: https://oshwhub.com/387924a/project_zrwlwonk

Compatible hanger: Related hanger compatible with open-source TPU assist device - Free 3D printing model - MakerWorld

Please refer to the assembly guide and the document at the end for assembly process and required accessories