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Open Camera: Focus Helicoid
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Work in progress for a focus helicoid.
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Model information
- Source
- Printables
- Category
- Photo & Video
- License
- Creative Commons — Public Domain
230425: v0.1 inital version
Work in progress for a proof of concept that a focus helicoid can be made by 3D printing. Currently printed in 0.1 layer height in eSun ABS+ on a Voron Trident. This version should result in ~6mm movement and is intended for a Nikkor 75mm lens in a Copal 0 shutter. This version uses 7X*3 ISO Metric Threads. The thread sides have been each offset by -0.1mm and the sharp edges rounded with a 0.15mm fillet to give more play in the assembly. This has to be verified if it works.