ZF54 to octagonal tube adapter
thingiverse
I had several electric roller shutter kits made by Somfy with octagonal 60 mm tubes, but my original roller shutters were built on ZF54 tube. To reuse the end caps, I built this adapter which allow to fit the old end caps made for ZF54 tubes onto the new octagonal 60 mm tubes. The adapter has a slight draft (0.3°) which allows to press fit it into the octagonal tube. I provide the STEP file but if you use OnShape you can clone the original project (public) [here](https://cad.onshape.com/documents/fa507261507f5ad9bab1c6a7/w/d9393066944fbcf5bd9d94c4/e/4c08ce2b495a2eb611b76396).
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