Bernina 730 nylon cam gear
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Updated cam gear tested on a Bernina 730 but mght work for 730, 732, 830, 831, 832, 840, 850 too
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Model information
- Source
- Printables
- Category
- Other House Equipment
- License
- Creative Commons — Attribution — Noncommercial
Needed to replace a broken nylon cam gear on an old Bernina Record 730. The model provided on https://www.printables.com/model/298486-nockenstapelgetriebe-fur-bernina-nahmaschinen-730- did not fit well, It appears to be a straight gear that doesn't fit well to a worm gear. Therefore, I designed a new gear with a 3.5° inclination and concave teeth that fits the worm gear much better. Printed on an X1 carbon with PLA-CF it fits perfectly on my old Bernina with nearly no play.
Note the two small grooves on the axle. The gear sits securely even without glue, but you can add a little superglue here to better secure the gear to the axle.