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Mechanical iris – 3D printable model from Thingiverse Thingiverse

Mechanical iris

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Mechanical iris
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Fully functional mechanical iris with 5 blades and smooth operation. Learn how a mechanical iris is working by printing and assembling this iris. No supports are needed to print the parts, but some pins must be glued to the blades. A detailed print and assembly description is available as PDF document.

The print and assembly guide document can be downloaded here:
[Dreamtime24_Mechanical_Iris_assembly_guide_Rev01.pdf](https://www.dreamtime24.de/Thingiverse/Dreamtime24_Mechanical_Iris_assembly_guide_Rev01.pdf).

I also have tried to design a "glueless" iris which still needs no supports for the 3D print. This is possible when the holes in the actuator ring are pins and the blades contain holes. But this is a difficult setup, as the pins in the actuator ring must not exceed the thickness of the blades. The pins tend to slip out of the holes. Therefore the design of this thing is better.

Have fun printing and assembling this interesting item.
Source
Thingiverse
What you need to print this: Intermediate Medium confidence
Why?
no supports
Support-free Single piece
Supports 0/3
Assembly 0/3
Settings 2/3
Bed size 0/3
Post-process 1/3
Printer
FDM / FFF
File format
STL
Material
Min. bed size
50 mm (Small)
Post-processing
Sanding
Software
Cura, PrusaSlicer, or similar
Same designer, more platforms

Dreamtime24 also publishes on

73 additional models across 2 more platforms

Verified by matching model titles across platforms.
Frequently Asked Questions
Which 3D printer is suitable for Mechanical iris?
Any FDM printer should handle Mechanical iris just fine. It's been printed on machines like Bambu Lab A1 Mini, Prusa Mini+, Creality Ender 3, most FDM printers. A minimum build volume of 50 mm is recommended.
Does Mechanical iris need supports when printing?
No supports needed for Mechanical iris — it's designed to print clean off the bed.
What file format is Mechanical iris available in?
Mechanical iris is available in STL format. These files can be opened and sliced using free software such as Cura, PrusaSlicer, Bambu Studio, or OrcaSlicer for FDM printing, or ChiTuBox and Lychee Slicer for resin printing. The download is provided through Thingiverse.
Is Mechanical iris free to download?
Yes, Mechanical iris is available as a free download through Thingiverse. Always check the license on the original platform to understand commercial use, remixing, and attribution requirements.
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