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Snapmaker U1 PTFE Holder One-part replacement — image 1
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Snapmaker U1 PTFE Holder One-part replacement

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One-piece Snapmaker U1 PTFE holder with a compliant spring mechanism and cable-tie groove.

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This is a replacement version of the PTFE holder for the Snapmaker U1.

The original part was not shaped optimally for 3D printing, so I reverse-engineered it and redesigned it as a single-piece part instead of the original two-piece structure.

The original snap-fit hinge mechanism has been replaced with a compliant mechanism: an integrated spring and an S-shaped displacement limiter. This allows the part to function as one printed piece.

This version is slightly shorter than the original holder, and a cable-tie groove has been added to the top, making it easier to secure the PTFE tube.

I printed this part in nylon. If nylon is not available, I recommend using at least PETG. PLA is not recommended due to creep.

Close-up CAD image of the area where the compliant mechanism is applied.

This is the result of a nonlinear static analysis performed in Fusion.

Photo of the mechanism deformation after installation, with the toolhead moved fully to the front.

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