Repairing an 8mm movie projector

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Hugs
Posts: 87
Joined: Tue Mar 08, 2016 11:16 pm
Location: Pennsylvania

Repairing an 8mm movie projector

Post by Hugs » Wed Jan 11, 2017 2:51 pm

I'm always on the lookout for old projectors when I visit thrift stores. Last weekend I happened upon a Kodak Instamatic M80 Super 8/Regular 8 projector in great shape for $20. But it had one common failure: The snubber/damping arm had disintegrated. I found a video on YouTube showing a working projector with the arm intact:
snubber-damper-arrow.jpg
I also found some pictures of just the arms from sites that were selling supposedly new old stock replacements (for $25 each! :shock: ):
parts-pic.jpg
There was enough of mine left to get some basic measurements so using the remnants of mine and the pictures, it was off to OpenSCAD. Not exactly like the original but it had the dimensions and features it needed:
modeled.jpg
Printed at 0.1mm/100% infill in PLA+:
printed.jpg
After a little wet sanding, installed and working!:
installed.jpg
Spent the last few nights transferring 10+ reels of regular 8 and super 8 home movies and it's still chugging along.

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zemlin
Posts: 457
Joined: Thu Feb 04, 2016 9:32 pm
Location: Indianapolis, Indiana

Re: Repairing an 8mm movie projector

Post by zemlin » Wed Jan 11, 2017 4:43 pm

Nice work!

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Jules
Posts: 3144
Joined: Wed Jan 21, 2015 1:36 am

Re: Repairing an 8mm movie projector

Post by Jules » Wed Jan 11, 2017 10:44 pm

Awesome! :D

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jamigas
Posts: 21
Joined: Thu Feb 04, 2016 8:32 pm
Location: Crawfordsville, IN

Re: Repairing an 8mm movie projector

Post by jamigas » Sun Jan 15, 2017 3:47 am

Little niche "Hey! I think I can fix this" projects like this is exactly why I first got into 3d printing.

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