All of the different forms of electric motors and solenoid motors. If you’ve made a solenoid motor or are selling a kit to make an electric motor of some form then drop me a line and show it off on these pages editor@glue-it.com
Some solenoid motors have a core and attract / repel the connecting rod from one end. Other solenoid motors have an arrangement similar to an engine where the rod runs through the core of the windings. This is very similar to a piston and cylinder arrangement.