Confining the magnetic field of the solenoid motor stator is a significant improvement. The force increases and hence the rotational speed increases.
This is the first of a number of improvements to the solenoid motor. However, as you can see from this video it is a significant improvement:
Here I have just used 0.9mm thick mild steel strips that are ~5mm wide. Effectively these strips guide the magnetic field and increase the strength of the magnetic field by increasing the density.
Solenoid circuit (orange) with illustrated magnetic field (blue) Iron strips (grey) used to confine the magnetic field
Next I need to look at ways of making this an interesting feature.
Single Piston Solenoid Motor Plans
This is a lovely item to make and run, a mix of wood and metal. The engine is a great executive toy and looks in keeping on any desk.
PDF download of the plans for this simple engine.
Does this motor self run and if so how long–you said it produces low output–amount ?? interested in building this–get back to me please
it doesn’t self run, there is a 9V battery in the base