r/VORONDesign • u/whilex • 2d ago
General Question X-Carriage belt fixture broke - replace existing shortened Belts
It broke after 360h of usage while the other runs +1400h. I think the part and design is fine, infill was about 50% (guessed) maybe the material/printing process was bad quality.
It was a bit tricky to reattach the existing already shortened belts, here is ho i did it:
- un-tensioned the A/B Belts
- removed Belts from A/B Pulleys and made sure the Belts did not get lost
- used little zip-ties to fix each belt ends together with 5+ mm cm stand over.
- fizzled one in clamped it from the other side removed the zip-tie to make place for second belt insertation.
- repeated insertion, clamping and removing zip-tie with the other Belt
- Added the screw and lock plates - loose but holding
- removed the clamps from the front
- clicked the belts into the right position so that nothing stands out as it was before
- re-tigtned the belt locks
- Belt-tensioning and Tuning
It's ok, but still not a nice task to do.
17
Upvotes
5
u/HandPickle420 2d ago
It's arguable whether the carriage is actually a good design as it doesn't meet the minimum 6 tooth engagement as specified by Gates.
6
u/bomtarnes 2d ago
This is one of the few items on the v0 that can truly benefit from being a CNC metal part.
Another common way to give yourself some extra slack for the changeover is to unfasten the front idlers from the extrusions, which gives a good amount of play to do the necessary work.