Bell & Howell Filmosound Worm Gear
- Arrives in 2 to 7 business days Printed in Auckland. $10 shipping, free over $75
- 14-day faulty refund If it arrives broken or misprinted, we reprint or refund it
- Secure checkout Card payments handled by Stripe
- Material
- High-Detail Resin (8K)
- Colour
- Grey
- Weight
- ~30 g
- Print time
- ~1.6 h
- Express shipping
- $20
More information
Replaces the worm gear in Bell & Howell Filmosound projectors, such as the 2580. The original worm gear is made of nylon and experiences plastic fatigue – even well-maintained or unused projectors experience this problem.
If your worm gear isn't broken but your projector still isn't right, it might be the other gear: https://www.printables.com/model/1211740-bell-howell-filmosound-other-gear
I designed this myself in Fusion 360 and printed it in PETG. I then press-fit it onto the original aluminum holder with a bit of glue. It seems to work just fine, but your mileage may vary.
UPDATE: After printing it in PETG and watching a long movie, the gear started to melt, so I have updated it to be slightly smaller and also printed it again in PA-GF.
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Note: Actually getting at and replacing the gear is an absolute massive project, requiring special tools and many hours of work – plus no guarantee you'll get your projector back in working order. There are many youtube videos on the subject. You have been warned.
Design and description by Av , licensed CC0.
Frequently asked
How long does shipping take?
Bell & Howell Filmosound Worm Gear is printed to order. Lead time is typically 1-3 business days plus 1-4 days NZ shipping. Standard NZ shipping is $10, free over $75.
What material is this printed in?
By default this is printed in High-Detail Resin (8K) at 0.025 mm layer height on an MSLA resin printer. Custom material and colour swaps are available, just leave a note at checkout.
Can I get this in a different colour?
Yes. Every product can be printed in any of the resin colours we stock, or hand-painted on request. Leave a note at checkout or email [email protected].
Do you ship outside of New Zealand?
Currently New Zealand only. Australian shipping is coming.
Who designed this?
Designed by an independent sculptor and licensed for commercial printing. The original is linked on this page.



