Description
The solenoid engine single USB is a third generation desktop standing engine with an acrylic framework, flywheel and solenoid piston. The Solenoid Engine single is completely electronically controlled. Solenoid timing comes from an opto-sensor with a separate adjustable cam. The speed regulation comes from the small embedded CPU. This gives a wide range of running speeds which are adjustable with a pair of push buttons on the back of the motor to increase/decrease the speed.
The speed is regulated by ‘missing’ power strokes when the flywheel is moving over the pre-set speed. This is similar to the way a gas engine is regulated.

It is designed to run from a 5V 2A supply ideal for a USB2 or USB charger, from a USB hub or direct from your computer. The flywheel has been completely redesigned from previous versions, to be more accurate, and a balance weight has been added to the flywheel for smoother running. An LED indicates the solenoid output.
What you get
This is the complete kit, and comprises PCB, Acrylic frame and a Solenoid, with the electronics PCB as a kit . It makes a great desk toy, or as a demonstration for piston engine or steam engines. This design no longer requires batteries, as it runs completely from a USB C supply. USB A-C (charging only) provided.
Instructions
Solenoid engine single USB Resources
Improvements
This is the third version of the solenoid engine single with many changes to make the construction and operation easier. These include, redesigned electronics to allow for USB operation, Flywheel balance weight, Rotating axel to give access to the motors output for use with other equipment, Much improved flywheel stability/accuracy, access slots to ease the setting solenoid position and the flywheel ‘weights’ have been removed as they are no longer required.
Please note: This Kit Contains small parts and is therefore not suitable for children under 5 years old.























