DIY Plastic Shredder 2.0

Рет қаралды 84,810

10 ай бұрын

I'm not a mechanical engineer but I attempted to build a shredder.
Links to papers:
iptek.its.ac.id/index.php/jps...
thesai.org/Downloads/Volume12...
www.instructables.com/Circula...
content.instructables.com/F5A...
content.instructables.com/FXF...
www.polytechindustrial.com/pr...
Precious Plastic Shredder:
Old:
www.printables.com/model/2810...
New:
community.preciousplastic.com...
Brands that sell gearboxes:
Boston Gear: (www.bostongear.com/products/e...)
Dodge Tigear: (p1.aprimocdn.net/dodgeindustr...)
SEW-eurodrive
Falk omnibox worm reducer: (www.rexnord.com/contentitems/...)
If you want to contact me:
Business Inquiries: Scicynical@gmail.com
Instagram: / matttheengineerguy
Twitter: / sirspunk
If you wish to support me:
Patreon: / scicynical
Buymeacoffee: www.buymeacoffee.com/scicynical

Пікірлер: 42

@aunabreslingaming3279 9 ай бұрын

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

@cjjuszczak 6 ай бұрын

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

@TroyHardingLit 6 ай бұрын

"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.

@b.malnit8983 8 ай бұрын

Thanks for all the info.

@sharkmusic9636 8 ай бұрын

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

@Bianchi77 3 ай бұрын

Creative video, thanks :)

@Rogwilco42 2 ай бұрын

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.

@timothywhite1872 5 ай бұрын

GREAT JOB THANK YOU.

@user-uo1yn4se8r 7 ай бұрын

that green bottle was fighting for its life

@JahirHussainAJahir 23 күн бұрын

Excellent

@frrapp2366 6 ай бұрын

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 6 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.

@BaronVonBeef 10 ай бұрын

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 9 ай бұрын

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

@arnoldbailey7550 3 ай бұрын

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

@das250250 17 күн бұрын

Have you ever considered preheating the plastic prior to trying to shred it ? Not melting temperature but a temperature that softened the plastic

@brownobservablephenomena Ай бұрын

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

@rverm1000 6 ай бұрын

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

@Raven-Creations 2 ай бұрын

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.

@preciousplasticph 8 ай бұрын

i recognize that design

@andrij66 6 ай бұрын

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

@josephmaxwell7826 7 ай бұрын

Have you done any pvc shredding

@SHAWNMATTHEW-he8ss Ай бұрын

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

@theonewhowas7709 Ай бұрын

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

@CoLiC2 2 ай бұрын

"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.

@darklich14 5 ай бұрын

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

@SciCynicalInventing 5 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 5 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 3 ай бұрын

Angle grind some large washers

@darklich14 3 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 2 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.

@crxxpslvyr7887 10 ай бұрын

You trying to make gas?

@inhabitantwaps3qs803 5 ай бұрын

Can you please try this shredder design on cardboard

@richardbussard4202 2 ай бұрын

how much does your shreder

@Allexz 3 ай бұрын

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 =)

@tatkkyo9911 21 күн бұрын

Any plastic that's not a bottle, got a broken printer strip the plastic, and scrap it