DIY Plastic Shredder 2.0
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- čas přidán 12. 09. 2023
- 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
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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 👍
"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.
Excellent
Have you ever considered preheating the plastic prior to trying to shred it ? Not melting temperature but a temperature that softened the plastic
Thanks for all the info.
You just need all torque no speed with the first...oh youre getting there
Subbed right away! Keep the videos comming and have a nice day :)
GREAT JOB THANK YOU.
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
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.
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 :)
the luandrymats have no.2 recyclable plastic for 3d printing
Try adding a set of larger rollers above the small so it feeds better. Hope it helps.
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.
Perhaps having two meshing shredders feeding the material between them?
What about making blades with interchangeable carbide cutters, such as those used on lathes?
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
can i ask, if you were to change the material to wood or also from plastic, would it work? i am just curious
that green bottle was fighting for its life
I’m looking for something similar but to shred PCB boards
i recognize that design
Have you done any pvc shredding
Can you please try this shredder design on cardboard
Very good. Price please.
normally,shredder machine is according to customers needs,recommend different shredder model
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 =)
Any plastic that's not a bottle, got a broken printer strip the plastic, and scrap it
how much does your shreder
You trying to make gas?
How can we make these teeth more readily than lasering steel? Can we use 4" carbide tooth sawblades? I might think about this.
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
@@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.
Angle grind some large washers
@@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
@@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.
"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.
great video but the cost......not today
Why don't you copy my design, a 24V 350W motor can handle the whole bottle
Drop a link
.