invisiblewardog
A simple motor connected to a battery pack with a toggle switch. Find a way to fasten the cart to the motor ( and counter balance, although they are light enough that I'm sure anybody could handle the shaking caused by the unbalanced load ).
Plug in the cart, flip the switch, done

Hmmmm shall I build a prototype?
haha I didnt say for a minute this would be complicated. I just like machines and making stuff.... out of other stuff.
yeah i was thinking the same basic thing. I had been thinking to test the idea a cheap cd player would work for all the parts I would need. and I mean walmart cheap! saves me trips all over the place for parts (motor, plat form and controls) . I was thinking crack the lid off the cd player, permanently disable the saftey on it ( the pin switch that interrupts the cd from spinning while the lid is open) and use some cheap soft foam to make pockets to fit the carts on the top of the CD and your good to go I think. CDs spin fast enough. added bonus though if you burn the cd (say its a cheap CD-R you got laying around) with your favorite music...... you could listen to music and centrifuge your carts at the same time.

as for counter weights you wouldnt need them so long as you did the geometry right and had an even number of carts.... vibration should be minimal.
this idea is more about convenience of filling multiple carts in large numbers and centrifuging them all at once consistently. If I get around to doing this Ill be trying 8 at first and then go 10,18, 20, 30. because I think it would be great to have 20+ filled carts just ready to go.
cons: start up may be slow the more carts involved( not sure of EM4 anatomy until mine gets here I have the idea based on janty mini fogger carts size) and after a while you may get tired of the mix on that cd..
Pros: consistent mass cart filling may be possible. probably cool looking and fun to watch. and you can listen to your favorite artist while you wait.
name: Audiofuge
MaryKay
I don't think you will need 5 mins.
its 5 mins cuz thats how long a song lasts on average.
