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Cheap? I'd hardly call 400 dollars cheap! You can hand wind coils with nothing more than simple wood doweling and some bobbins, no cost really just gotta assembly it from scrap wood. What kind of SMPS coil do you plan on making because most SMPS supplies are e-core or pot wound, any solenoid wrapped SMPS coil is going to be a tremendous generator of AM RF noise.
Do you mind taking pics of your setup?A sowing machine motor and foot pedal works well for me. Because it takes hands to feed the wire into the bobbin correctly I like using my foot to control the speed. A counter is important.
Can you show one of your transformers mounted on this machine? Thanks.Small machine: gear motor, 200 to 400RMP???, counter, shaft with interchangeable tooling.
Each type of transformer uses a different tool to hold it in place.
winds coils and transformers up to about 1.5 inches.
Uses a bench supply. Set voltage for speed and current limit for max toque.
Can stop the motor by hand and the current limit cuts in.