I'm currently building the ME Beam Engine which will eventually be mounted on a base with an available cavity space of approximately twelve by four by about two and a half inches deep.
I have in mind to use this space to fit a small, preferably 240v electric motor which can be used to power the model for demonstration purposes. The motor I have, which would fit nicely, is a 50watt sewing machine motor but which runs at 6000 rpm, whereas I need something in the order of about 10-20rpm, a reduction of about 400 times. Does anybody know of a small ready-made gearbox which might suit the purpose?
Alternatively, can I reduce the speed electrically, perhaps via a light dimmer switch? If so, what would this do to the power and torque output? (It must already be obvious that my electrical knowledge, like that of many others here, is severely challenged by the need to change a light bulb!)
Are there other small motors which might be better suited to the application?
Any alternative suggestions?
Chris Edwards (in deepest Dorset) "....there *must* be an easier way!"