In the shredder video Mr. Hakkens makes reference to an electronics video, but I can’t seem to find this, or any specific instructions in the zip file. Is this largely reliant on the type of motor used?
glad you asked, what i found was its all in the Gearing, i didn’t have the money/or knowledge of retailers to buy a singular motor and gearbox and electronics, so i brought a used a garden mulcher from ebay, and dismantled its motor from its casing with the electronics. which so far has worked perfect.
hope this helps you on your way to building a shredder 🙂
not forgetting, the idea is to find a cheaper alternative, especially in countries where its hard to find secondhand industrial AC motors and all the required accessories.
@wess – Sure, a 3 phase motor would be ideal, but most household/users only have access to single phase without an expensive upgrade from their power-company.
AFAIK the single phase engine @kettlekekkers use delivers a torque in the 400-500 Nm range and should do the trick even though stonker is always better.
Personally if it were me, I would lean toward oversizing the motor/torque requirements than getting too little. Last thing you want to do is lock-up the motor, and you’ll take a LOT of torque to break any components inside the machine.
I really like my 3-phase motor with VFD, and was about the same price as a single phase motor without a VFD.
Thanks very much! Did you find that a 2.2 kilowatt/ 2hp motor was required to make the shredder or can we use a less powerful one?
yes, it is dependant on type the motor you use, amperage/current being one reason, you’l need components that can take the load.
this video should send you on the right track
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