3D printable 49mm filter slip on adapter for 36mm lenses ex: Mamiya Six, Zeiss Super Ikonta

Yobo57

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I made a 3D printable slip on adapter to fit 49mm filters on old folding cameras. The opening is 37mm, fits perfectly on my Mamiya six which has a 36mm wide lens.
Here is the link.
I would suggested printing with the smallest layer height you can, to ensure accurate 49mm threads.

Edit:
Alternate link

 
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Mick Fagan

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The link doesn't work for me, but then again I'm not super tech savvy.

Do you have a thread file? If you have a thread file, usually you can clean up damaged threads. That said, I know the threads on filters are quite small, but thread files used to be available for very fine metric threads 50 years ago when I bought an array of them for some very fine Swiss machinery.
 
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Yobo57

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The link should work, it’s a public google drive file. I could always send you the 3D object by email if you would like to print your own, just send me a pm.
 

MattKing

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Doesn't work for me either - it yields nothing more than a blank screen.
 

selyfriday

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Link worked. Design looks very nice. I'm going to give it a go.
 

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koraks

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Link works fine for me. As to threads, my experiences trying to accurately print threads like these on a filament printer aren't very good. However, due to the softness of the material involved, I usually just use some protruding notches where the threads are supposed to be and then make the fitted part 'thread itself' in there.
 
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Yobo57

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MattKing said:
Doesn't work for me either - it yields nothing more than a blank screen.
Click to expand...

I added a link to the google drive folder instead of direct to the file, let me know if that works
 

grahamp

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It might be easier to embed a 49mm filter ring or a 46-49mm step up ring to get a robust thread, rather than try to print it.

I have the file running on the printer at 0.1mm layer height at the moment out of curiosity. I have a camera this might fit, so it is worth it. Finding push on filters for the Zeiss is a bit hit or miss.
 

MattKing

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Yobo57 said:
I added a link to the google drive folder instead of direct to the file, let me know if that works
Click to expand...

I certainly get more from that:


I'm guessing that those who are already working with stl files will normally have the viewer installed.
 

grahamp

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As I expected, my standard nozzle cannot manage threads that thin. A filter did snap in and screw out, as there are some incomplete lands. I have done coarser threads (M6) with some success.

This is pushing the limits of my FDM printer, though someone with a finer nozzle and more patience may get more consistent results. I am curious what the settings were for the original - material, temperature, speed, nozzle diameter, and layer height.
 
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Yobo57

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I printed mine in pla at 190 degrees, max speed 150mm/s with a layer height of 0.05mm. I used the anycubic kobra 2 printer, I believe the nozzle diameter is 0.4mm. The print is not perfect, but it gets the job done.
 
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