"I actually desired a two to three kilowatt three-phase induction motor-driven worm-drive gearbox coupled plastic-eating monster people call a shredder." Subbed.

I love the classic pronged cross cut paper shredder blade design this is the “EUGH holy crap” more gnarly looking version of that all it needs is the double edge cut into the blades

Fantastic shredder project, great commentary, well documented, and entertaining too. Well done 👍

You just need all torque no speed with the first...oh youre getting there

Thanks for all the info.

Subbed right away! Keep the videos comming and have a nice day :)

that green bottle was fighting for its life

Really good work. Surprised by your preference for stainless. You'll find the spec for hardox in the original spec is significantly better than stainless. If you've got parts that are working, corrosion isn't going to be a major concern, plus you can weld hardox like mild steel, it's crazy tough, no tricky distortion, no blunt cutting faces.

Creative video, thanks :)

GREAT JOB THANK YOU.

the luandrymats have no.2 recyclable plastic for 3d printing

Good work. I now see that my dream of an economical way to shred all the plastic packaging I get is unrealistic. The horsepower required just to shred a plastic bottle is surprising. I looked at commercial shredders, and they are way out of my budget. After watching this, it's fairly clear why. I assume they use heat treated steel to allow the cutters to hold an edge. I got nervous watching you poking the beast with that chunk of wood. If the hopper had vertical sides (i.e. a rectangular tube, not a frustrum), you could use a slightly smaller rectangular piston to push the cartons down safely.

Try adding a set of larger rollers above the small so it feeds better. Hope it helps.

ok i understand that the geared systems are smaller and more robust over time but a cheaper and easy speed and torque setup would be to use belts and pulleys , a couple of double pulleys on pillow block shafts and you can get your gear reduction and keep a lot of torque

@SciCynicalInventing

5 ай бұрын

I agree with you, and in fact the slipping in the belts could help prevent any serious damage to the shredder as well. But my criteria was that it be as compact as possible and a belt system would need to be large to step down the high rpm to a very low rpm.

Perhaps having two meshing shredders feeding the material between them? What about making blades with interchangeable carbide cutters, such as those used on lathes?

@aunabreslingaming3279

8 ай бұрын

Like on pcb shredders where it has the barrel with the like bolt on cutters?

Looks like you need alot of torque for that. What about a chipper with flailing arms or lawn mower blade where it hits it like a bat & both brut strike force & repeated blade cuts chop it down

I’m looking for something similar but to shred PCB boards

can i ask, if you were to change the material to wood or also from plastic, would it work? i am just curious

i recognize that design

Have you done any pvc shredding

Such a fun project, however, as a swede i get money back from recycling the plastic bottles at the grocery store... So i don't know what i would use one for =)

"I'm not a mechanical engineer" That's a good thing, because a mechanical engineer would have spent way too much time building something that is needlessly complicated and can't be easily repaired.

Can you please try this shredder design on cardboard

how much does your shreder

How can we make these teeth more readily than lasering steel? Can we use 4" carbide tooth sawblades? I might think about this.

@SciCynicalInventing

3 ай бұрын

If the carbide teeth were to fragment it could damage the shredder. I would imagine saw blades might be harder to use because theyre more fragile, good for high RPM cutting but they dont have a lot of strength when you want to shred slow with a lot of torque. Although i could be wrong because if you had a good way of feeding the plastic so the saw blades nibble away and dont take large cuts it might be okay. if you had a small cnc mill you could cut out blades with an endmill or if you had access to a cnc plasma cutter that could also cut out new blades pretty easily

@darklich14

3 ай бұрын

@@SciCynicalInventing great feedback. Thanks. That's an interesting consideration, the feed rate and it makes complete sense, what you say about the bite size. Alternately to using saw blades, what sort of cheap thick steel discs are out there I wonder.

@altrombone1775

2 ай бұрын

Angle grind some large washers

@darklich14

2 ай бұрын

@@altrombone1775 good idea. I'll have to see what I can get at the store. I'm still considering if small carbide tooth circular saws could work at low velocity on something like a PETE bottle neck/threads

@Castor586

Ай бұрын

​@@altrombone1775I'm not "unsold" on the idea of using washers, but what would your thoughts be for using 1084 knife blade stock instead? Cut them to a uniform size, grind the cutting teeth in, and then drill your preferred diameter for the rotating axle.

You trying to make gas?

Very good. Price please.

@Environmental-friendly-66

6 ай бұрын

normally,shredder machine is according to customers needs,recommend different shredder model

great video but the cost......not today

Why don't you copy my design, a 24V 350W motor can handle the whole bottle

@alaladeayomide1216

4 ай бұрын

Drop a link

@znaszgoprzeciez2229

12 күн бұрын

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