Making a 3d printed servo controlled large format leaf shutter
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- čas přidán 12. 07. 2024
- This video shows how I made a servo controlled shutter, suitable for low speed film such as paper negatives or lith film.
This is suitable for use with large format process lenses or home made lenses.
Update: flash sync was added and works with electronic flash, and a rotary encoder was added for ease of navigation. See the Github page for details.
Cost breakdown in CDN funds (incl shipping):
Arduino nano ATMEGA 168P: $2.92
SG90 9g servo: $3.14
SSD 1315 oled display: $3.15
Push button switches: $.40
PCB board: $.70
Total cost: $10.31
Details of the build, including a link to the 3d files are at github.com/hackaninstant/Serv...
Id love to watch a video on your homemade lens :)
I hadn't found this on thingiverse! Super neat!
As for the flash sync, try and get a MOC3010 series optocoupler with a TRIAC output. It works with an arduino as the opto part is just an IR LED, and the TRIAC part will trigger reliably most flash units. The other option would be to fit a microswitch, but then you lose the ability to M sync.
I like the idea of a triac output. I ordered some TLP127's a while back which should work if I connect the polarity correctly to the flash sync cable. But I'll keep the MOC3010 in mind if this doesn't work...
Absolutely amazing work sir!!
Very cool project. Thanks for sharing it.
This is great to see. You’re a hero
Wow
Very nice work!! Why not use a solenoid to open and close the shutter?
I am in need of a large-ish leaf shutter (~100mm opening diameter) to sit behind an old large format lens. I have some vague ideas in my head.
Because of the size, the leaves will need to move fast to prevent vignetting.
1. I'm thinking 0.3mm thick Titanium or carbon fibre blades and rings to withstand the forces.
2. One or more solenoids to open and close the blades. Thinking about which arrangement will minimise vibrations.
3. A servo to hold the shutter open for focusing to save battery.
4. A bag bellows with an elastic mouth will slip over the rear element of the lens, or even the entire shutter assembly.
I'll gratefully scavenge your ideas and code.
Sounds great! Let me know what your develop, and post it on github if you want to share. This project is on github, link in description.
A solenoid could work, though likely not with 3d printed parts. I doubt it would give you much faster speeds. For a high speed shutter, opening/closing springs would work best.
Can you make it double the size
Yes, just scale it in your slicer
how u draw the leafs of shutter ? have u any tutorial or book
The shutter mechanism is 3d printed, with the files available at github, link in description.
@@hackaninstant i saw the link, but i need another size of hole, how u draw the leafs? can u explain ? i found one book but its not full((
@@user-dy3ti3nn1v I used tinkercad. You can import the files there and size them to what you need
@@hackaninstant ok, ill try, thanx