Fun fidget! I scaled Z up to 180% for added strength. Nice mechanism and excellent model!
Mechanical Iris mechanism with 5 blades
Decorative and working iris mechanism based on 5 blades.
In the contest Mechanical Marvels
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updated October 25, 2022
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@mobiobi Thanks for sharing your print!
New print, this time with 200% scale on Z. Additionally, I scaled the X and Y axes on the spur gear to 99.3% for a slightly tighter mesh on the gears. This one works really well with no slipping of the gear teeth.
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With the extra Z scale it's nice and chunky. Printed in Polymaker Matte mint green PLA and Hatchbox wood fill PLA.
@Uenbzsto Hi nice print! Looks indeed nice and chunky.
Fun print. I've had some issues with flexibility of the upper and lower rings causing teeth to slip and too much drag on the sliding surfaces, so I am re-printing with Z scaled 200% and using ironing to see if that helps.
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@Dynamite Yeah the pivots are rotating freely. I think the PLA I used is just rather flexible and it allows the front and back rings to flex out of plane.
@Uenbzsto Ah ok, let me know otherwise I can upload a design with a bit thicker front and back plane. Or a bit wider legs between inner and outer ring. I did not have the problems with my filament. (ESun PLA+)
@kevinbish15 WOW nice print, I like the colors!