open crank solonoid engine

May 15, 2006 2 Replies

An Ozzie friend has asked me if I know of instructions for building one of these. Google turns out many replies but nothing suitable. Most modern versions use chips to regulate the pulses & optical sensors for timing. What he wants is a good old contact driven engine powered by one or two low voltage solenoids. Any help appreciated.


Hi There,

This sounds like a Froment engine or similar type. Am i correct? Som worked with magnetic attraction but others worked with solenoi stroking action. Cheers Coli

-- colinheat

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