Just wanted to see if it could be done…
Started with a Canon ball-bearing motor with a 3mm shaft that can readily accept Meccano and Steel Tec pulleys. I then slipped it into a 35mm plastic film can.
With some 3/8″ brass strap I had, I fashioned a bracket that both cradled the genny and fit around the flange at the base of the smoke stack. I soft soldered it and, with a bit of filing and buffing, made a sharp looking piece that goes with the spirit of the tractor, and that does not alter the stock model either.
A bit of test fitting…
…and mounting with 6″ wire ties secured with a tie strap gun, made for a nice secure mount, the straps adding an almost buckle-like detail in the finished work.
The large 1″ pulley used in the beginning pushed only 2-3 volts DC at full throttle. When I swapped to this 1/2″ one, I got up to 5-6 volts DC.
By switching to this 3/4″ pulley AND running the drive band AROUND the flywheel, I was able to pull 15-16 volts DC, enough to run my model rains on quite nicely. Interestingly, the belt does not need a groove to stay on the flywheel, a bit of tech advice from a member of the Mamod forum.
I even wired this Meccano/Steel Tec Ferris Wheel to run off of the genny. By wiring it the way I did, thru an accident of design, I managed to set it up so that it can run both forward and reverse off the battery pack, and the generator when set in the “off” position.
There is another project to go with this that I will post tomorrow.
Blessings, grace and peace to you and yours…