Opposed Piston Motor

[tropes]

Hello
I finally have a new motor with some 1.5 inch magnets. I posted the video on U Tube: http://www.youtube.com/watch?v=oHvxB8sFyFo
Tropes

[tropes]

An interesting observation:
When the 2 magnets are repelled by a coil the direction of current is opposite the direction when the 2 magnets are attracted towards the coil. This induced current is captured in a capacitor when the motor is running by using a diode.

[tropes]

I am in the process of constructing a crankshaft for a 5 coil, 10 piston "Sotropa Motor". So far I have built 1 coil-2 piston and 2 coil-4 piston models using 1 photointerrupter per coil (see attach.). Using this set-up I would have to use 5 photointerrupters (one for each coil). Is there anyone out there who can tell me how to construct a commutator system that will supply current to each of the 5 coils using just 1 photointerrupter firing every 72 degrees?
Tropes

[tropes]

The bottom photo is the 2 coil-4piston set-up.

[Thaelin]

   Sadly, you are stuck with one per coil. Cant see any way around that one.
If you used mechanical  contacts, you would still need a set per coil to turn
it on and off at the prescribed time. Just the way of it.

thaelin