Welcome to ModelEngineMaker !If you have problems registering or logging in, please use the contact menu option to request assistance.
Nice looking castings Don. Is that your finished version too or not? Given the 6" scale, its a good sized model too!!Bill
That's a pretty nice project. I do wonder, however, how well a dynamo with cast iron magnetic components will work. It appears that the stator is magnetized with a DC current, probably with six poles alternating N-S. The voltage would be produced by the windings in the rotor and transferred to the output by means of slip rings. In that case, I think it would be AC output, but perhaps it could be converted to DC mechanically by using a segmented commutator. But my concern is the behavior of cast iron versus steel laminations for the components that see an alternating magnetic field and voltage, because of eddy currents. I searched for "cast iron dynamo", and found the following kit:https://www.ministeam.com/acatalog/Dynamo-Kit-12-Volts-PMDYN_1.html
Don My armature has laminations and the reason for that is that it generates A.C. and then the commentator rectifies A.C. to D.C. If the armature was a solid block it would tend to get hot from eddy currents.