tools, materials & knowledge for model makers
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 [email protected]
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.
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 … Read more
Having built a number of these motors, my thoughts have turned to improving the solenoid motor. The single piston solenoid motor runs very smoothly using a single 9V battery. However, when I moved to the next motor I made some force measurements with the armature and stator. The force was just 0.22N for this small … Read more
When designing the V-Twin solenoid I thought I should try and improve the solenoid. One area of particular concern was that for this one I used small permanent magnets in the armature, useful as it means I can make the engine double acting, but the downside is that it only acts over half the stroke … Read more
After making a solenoid motor in a couple of afternoons in the workshop I thought I should go for something rather more sophisticated. I wondered what a Solenoid V-Twin Harley Davidson motor would be like? One of the first objectives was to measure and improve the force developed by the solenoid. This would then allow … Read more
This is a simple homemade solenoid motor. This has ball bearings for all of the rotating joints. A cam with 2 lobes operates on the roller on the micro-switch and excites the coil when the piston is in the centre of it’s travel. The cylinder and piston are both machined from ebony with small permanent … Read more