making mini grinding heads for DC motors or for DC dynamos.
How to make a simple mini grinder is very easy and we can make it only from used items and of course the power is very strong.
Meanwhile, there are not many basic materials needed, only 2 types, namely:
material :
1 DC dynamo type RS550 or similar
1 used motorbike inner tire valve
1 strand of stripped copper wire
Well, those are some of the ingredients needed.
Hopefully this video is useful and useful as well as inspiring.
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