I didn't write this, but have used it several times with OpenSCAD with good results: https://github.com/jaymis/lens-gear-follow-focus

I was just thinking about trying to make a Parametric OpenScad model for Nauticam gears. It would work for a lot of them, but there are some lenses that need more complex mechanisms. Some of the manual focus lens gears I've made required complex 4-part sliding/turning components because the focus or zoom gear telescopes when turned.

A good rainy-day project for the to-do list. :)

54 minutes ago, Dave_Hicks said:

I was just thinking about trying to make a Parametric OpenScad model for Nauticam gears. It would work for a lot of them, but there are some lenses that need more complex mechanisms. Some of the manual focus lens gears I've made required complex 4-part sliding/turning components because the focus or zoom gear telescopes when turned.

A good rainy-day project for the to-do list. :)

I had to do a fair amount of doctoring to get something working for a zoom gear for a Sony lens and Nauticam housing. But doctoring, not whole cloth from scratch.

39 minutes ago, rlmalisz said:

I had to do a fair amount of doctoring to get something working for a zoom gear for a Sony lens and Nauticam housing. But doctoring, not whole cloth from scratch.

I have a basic template from which I customize:

• OD of the lens zoom/focus ring

• Distance from Housing Sprocket to top of zoom/focus ring

• Height of zoom/focus ring

• Plug in OD & Height parameters to customize a TPU friction ring

• Plug in OD+Thickness of TPU ring and Distance to top of zoom/focus ring to customize the Gear Cylinder

That works for most lenses. It's only if the lens telescopes or required access to switches that I need to do anything else, like add cutouts.

I've made a few rings for people with just these measurements, without ever having access to the lens. I usually provide 2 or 3 TPU rings with minor variations in thickness to allow for variances. So far, it's worked pretty well.

Probably half the custom gears I've made are for niche manual focus lenses (LensBaby, Laowa, TTArtisan) for which nobody makes or sells gears. Custom printing them is the only option, so its pretty cool to be able to provide a solution.

Example: https://makerworld.com/en/models/1804480-nauticam-focus-gear-for-ttartisan-100mm-z-mount#profileId-1924490

Thank you for all this information.I love to see that some guys are making intersting and usefull construction in 3D printing for the underwater camera world.

❤️😍🥰

I'm with a Isotta, it's different, If someone need focusing part for lenses please contact me, I can probably help with information and why not STL files