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My shredder construction log

This topic contains 41 replies, has 25 voices, and was last updated by  Simon Morrison 8 months ago.

3
Simon Morrison simonm

My shredder construction log

30/05/2016 at 03:09

Hi,

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.

Simon

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helper
07/06/2016 at 10:45
1

Hey Simon!
The bike looks good!
Thanks for sharing.

new
06/06/2016 at 20:12
1

@davehakkens where did you let the shredder-parts cut for ~120Euro? can You give me a contact-email?
I`m mailing since weeks to businesses around berlin, but can´t find any effordble cutter…
i´d rather pay more postage and let it cut in the netherlands….

helper
16/09/2019 at 02:11
0

Hi ppboys,

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.

Tks

Simon

new
16/09/2019 at 01:24
0

@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.

starter
15/09/2019 at 14:06
0

Hi simon,
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!

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helper
14/09/2019 at 04:06
0

I think you can..but not yet built one.
Stay tuned..

helper
14/09/2019 at 04:03
0

Wanna come visit Panama and gift me your bike? I am in love with the idea of a powerless shredder.

helper
14/09/2019 at 03:58
0

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…

helper
13/09/2019 at 06:48
0

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.

Thanks

Simon

new
30/05/2018 at 23:21
0

Hi everybody.
I just joined the community. I’m starting to desing my own shredder and a  question came to my mind:
@simonm: How many times does the plastic have to  be crushed to get the final size of the pellets? ( the size showed in precius plastic videos I mean)

Thanks a lot!!

starter
29/05/2018 at 04:10
0

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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