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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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I'm working on a mechanical seven segment display (lemmy.world)

submitted 8 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 8 months ago (1 children)

Oh that gearbox on the left?? I was just thinking that you could setup some gears similar to a analog clock to use only one motor. Does the geneva drive support snapping into position? With analog you'd want smooth motion, but here you'd want stepped positions. The snap is what makes this build so satisfying to me.

[–] [email protected] 5 points 8 months ago (2 children)

There is no snapping, but the geneva drive will stay locked in position when it is not moving. The thing that I haven't figured out is how to get the 3 to go back to 0 after 23:59, it needs to skip the numbers 4 to 9.

[–] [email protected] 3 points 8 months ago

The thing that I haven’t figured out is how to get the 3 to go back to 0 after 23:59, it needs to skip the numbers 4 to 9.

Ok thats making my brain hurt. I'm clearly not a mechanical engineer!

https://en.wikipedia.org/wiki/Geneva_drive

[–] [email protected] 2 points 8 months ago

Just make it turn back by 3 clicks. If you’re watching the clock closely enough to notice at midnight you should go to bed anyway 🤷‍♂️

Seriously though, awesome project!