PiCasso Design Challenge - POV Globe Blog 4

RE: PiCasso Design Challenge - POV Globe Blog 4

e14phil — Tue, 16 Apr 2019 12:08:56 GMT

I have never seen it work this well, Looks awesome Dale.

RE: PiCasso Design Challenge - POV Globe Blog 4

ralphjy — Fri, 12 Apr 2019 14:37:49 GMT

Nice to see it working. I have a stepper driven turntable that I built a while ago to try 3D scanning. I can probably come up with a new use for it if I can get power onto the turntable. I was thinking of adding a slip ring like Gene used, but I guess I could also add an inner bearing and try your technique. I'll need to dig it out of storage and measure the resistance of the "lazy susan" bearing that I used.

RE: PiCasso Design Challenge - POV Globe Blog 4

dougw — Fri, 12 Apr 2019 06:20:11 GMT

It might be feasible to look at wireless power transfer:

The KLINGMAGON Subspace Probe

RE: PiCasso Design Challenge - POV Globe Blog 4

balearicdynamics — Fri, 12 Apr 2019 05:09:42 GMT

Just thinking about the solution, I see some serious potential issues using a power jack due to the speed you should reach with the globe. Instead, did you considered a couple of contact brush to transmit the power to the rotation? Maybe a copper ring and a fixed rotating wheel for every pole. And what about a coaxial motor?

Enrico

RE: PiCasso Design Challenge - POV Globe Blog 4

fmilburn — Fri, 12 Apr 2019 03:24:24 GMT

Hi Dale

Very innovative! Have you put an oscilloscope on it to see if there are hiccups that might bother the Pi? It seems to work quite well with the motor.

Frank

RE: PiCasso Design Challenge - POV Globe Blog 4

genebren — Fri, 12 Apr 2019 03:07:51 GMT

Well done! It looks like it functions very well.

Gene