Thread

The simple elegance of the integrated timing belt loopback fastener

89 points · 18 comments · hasheddan

Perz1val · 1786034311 · focus · HN ↗
That center pin looks fragile, especially if it's printed along Z axis. How about printing teeth that'd mesh with the belt?
1. CarVac · 1786035343 · focus · HN ↗
  Printed teeth are weaker than the belt's own teeth.
  Conversely, with this design the center pin could break loose and the belt would still hold, because the pin just has to stop the loop from fitting through the slot.
  1. tonyarkles · 1786035483 · focus · HN ↗
    That’s exactly it… if you tolerance the mouth reasonably tight, the centre pin doesn’t actually carry much, if any, of the load. Friction in the mouth carries a bunch of it, especially if you add the zip-tie clamp from my sibling post.

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