putting a spin on pixels

[jess_her]

hello All
Well had to share this, wanted to build a spinning prop I call Ferris wheel but not really.

built a bearing mounted hub and in the center used optics to transfer the data. Spin this whole thing with a wiper motor which I need to rework, spins to fast.

   

[caretaker]

Pretty slick! 

[isellgum]

If you could calibrate that to a certain RPM you could program some amazing effects and text on that.

[Kasey911]

That's very cool!  Might you share a little bit more on how the "optics" work for data transmission?  I would love to put a smaller version of that together to play with.

[jess_her]

Here is a picture of the housing ,opto coupler mount and a poorly drawn schematic .
took a little lathe work to do this, the block is aluminum and the actual opto mounts are off the shelf PVC fittings with some machine work. Here is the data sheet of the actual opto isolator which is cut into between the lines on the barrel.

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[Kasey911]

Sweet!  Thanks!

[CW]

Nice idea and build.
What is the RPM?

Thanks,

Craig

[RJ]

AWESOME!

RJ

[jess_her]

thanks All

Craig, not sure what it actually spins at. Two speed wiper motor,  low  speed spins fast and  high speed spins very fast. I'm thinking if I do a 4 to 1 reduction on the drive  and a China pwm motor driver for finer speed control. Maybe use a MR16 to turn on some relays to drive the motor and have directional control.

[keitha43]

Or   if you notice somebody staring for a really long time, You can get on a microphone and say "You will donate to my charity" and see if they reach for their wallet. Followed by "Cluck like a chicken".