Greetings, all;
For me, I can never get my lumia going slow enough. Research continues, but here is a means of dialing down while ramping up.
I have long been a champion of these motors:
http://www.ebay.com/itm/12V-DC-2-RPM...-/400988936731
Available in a variety of speeds, 2RPM is the slowest I’ve found.
Still too fast.
Soooo, you rig it into a pulley system with a ~3:1 slow down:
Pulleys are available here:
https://www.pololu.com/product/111
They also sell the 5mm hubs shown attached to the disk above.
https://www.pololu.com/product/1998
The disk shown was cut from 1/8” plexi with a laser cutter, then smeared with epoxy.
The support was machined from a 1” x 2” section of aluminum angle iron.
This gets you pretty slow, but to crank it down further, I use a PWM speed control:
Available here:
http://www.ebay.com/itm/151681732135...%3AMEBIDX%3AIT
Dirt cheap (<$10 with shipping), tiny, works a treat.
I hope this helps some Lumiators out there.
Will add to Lumia Wiki when it is back up.
Cheers…Mike