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Gearing down a motor
I have this pretty powerful 12V DC motor (rated for ~6000 RPM with a moderate load). I want to gear it down. What's the best way to do this DIY style (barring going out and buying a specialized gearbox?) I already have a gearbox for a small DC motor, but I'd need to modify it to make it work.
Alternatively, I read somewhere that you can make pretty good belt drives using shrinkwrap tubing? I have plenty of shrinkwrap and am willing to cut some wheels out of MDF.
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>>1237234
shrinkwrap like heatshrink?
i don't know what you mean.
but you cab buyfag belts for shop tools / vacuum cleaners etc for big things. elastic bands will do for smaller but they perish. lego sell elastic bands that don't perish, they are real glossy but i don't know what why or how they are made or what is different and they are extortionate of course. if you have an old tyre or bicycle inner tube thats maybe punctured or aquire one could work if you cut to length.
yeah you can rig up a jig pretty simple to cut circles on just about any machine, don't need to be perfect.
either cut a deep slot groove for thick or section belts, flat belts you go the opposite way, cut the pulley with the largest radius in the centre and taper down towards the edges. might seem counter intuitive but it pulls the belt back on when it wanders, look it up if you don't believe me.
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Just buy a premade gearbox with your desired ratio and spindle sizes.
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