My shredder construction log
Just thought I would make a thread of my shredder construction.
After a weekend of fiddling, I managed to get the machine to an assembled state (please ignore the welding quality, I have just started to teach myself how to weld).
I will be spending this week/weekend tuning it so that it rotates smoothly.
The bike looks good!
Thanks for sharing.
it isn’t apparent in the video, but my motor is connected to a Start/Stop station that has a contactor and overload inside. The whole thing was wired up and tuned by an electrical engineer so I am confident that he did it properly.
@simonm, we do the couplings most of time our self (needs CNC, lathe and a bigger shaft) and to avoid over – torque, there are various options too : VFDs have that often built-in (needs to be activated and tuned) and there a number of standard electrical components (shneider) which trigger at certain amperage.
Yesterday i have the same problem, the mechanic connector between the motor and the Shredder brokes up while we where shredding hbpe plastic from cups.
How you solve it? Must i buy a bigger/stronger one?
Thanks for reading and for this intersting toppic!
Facundo from Argentina!
I think you can..but not yet built one.
Wanna come visit Panama and gift me your bike? I am in love with the idea of a powerless shredder.
Hello everyone, if you connect your peddles to a bike wheel,and use the area that the tire connected to as a pully to you shredder..One full spin of the wheel will turn the crank very fast.The blades may be singing…
Ok, here is my next update on my shredder construction log.
I eventually gave up on the pedal-powered design. I am not saying that it is not possible to have a pedal-powered shredder, but for someone like me who has no mechanical experience I found it beyond my skill and ability.
So I have moved on the an electric motor driving my shredder. I have done a bit of a video here – https://www.youtube.com/watch?v=d_6kiNuszV8
My next step is to use a heat press to make plastic sheets and a CNC Router to mill the sheets into jewelry. I will provide additional posts around that process as it goes.
Has anyone tried a “treadle” configuration like was used on an old stone grinding wheel? Once you get the stone in motion, keeping it going requires pumping the pedal, but could allow a configuration where the shredder operator is also powering it. (Something similar to a “Stairmaster” would seem like it could also work, but the mechanism for driving it with two independent chains is a bit more complex.)
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