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Hi ea69.

I am just wondering if you or anyone has any thought on using this with flexible filament. I tried this setup with my mk3s + mmu2s to pring flexible material last night. I notice during the filament rewind operation, the flexible filament (TPU) is not rigid enough to give it that initial push PUSH to initiate the rewind process. That leads to a bunch of excess filament get push back while not being rewind back to the spool. (I tried adding more weight but sometimes the mechanism still doesn't get the initial kick, but when it does intiate it will create too much momentum and completely unload the filament.

I am wondering what is yoru experience of setting this auto rewind spool holder to work with flexible filament successfully?
Current I have my filament to come up from the top, not the bottom.

I love this design and it works well with PLA no problem.

again, thanks for this awesome design I printed five of them :)