Project data
Authors Kemyszka
Years 2014
Made Yes
Replicated No
Cost USD 0.52
OKH Manifest Download

Included below is three different designs for PET bottle shredders currently designed for 20oz soda bottles but easily expandable for use with 2 liter soda bottles. The first design is a simple hand held shredder which is the simplest design and uses the least plastic. This makes this design ideal for areas which have access to a 3D printer but which filament might not be as readily available. The second design adds a bottle holder to the simple hand held shredder. This holder was added to possibly aid in efficiency. The third design is a hand cranked design which also uses a bottle holder and spools the cut filament. These shredders allow the use of the cut PET to be used in things like crafts and possibly for printing purposes.

Bill of Materials

Simple Cutter
Simple Cutter V2
Printed Simple Cutter

Files:

Tools needed

Skills and knowledge needed

Technical specifications and assembly instructions

  1. Download the files listed above
  2. Prepare your printer and load the.stl file and slice into a.gcode file
  3. Print cutter and clean any flash on the cutter slots
  4. Attach razor blade via the 2 M3 screw slots

Print time: 2 hours for simple cutter at 20% infill

Assembly time: amount of time it takes to attach razor blade, approximately 2 minutes

Common problems and solutions

The cutter slots may not print fully open and will need to be trimmed with a razor blade. Cutter slots may not also print with even opening spacing.

Cost savings

Hand cutter:

Commercial equivalent:

References

Page data
Keywords 3D printing, osat, plastic shredder, recycle, pet bottle, plastic
SDG SDG12 Responsible consumption and production
License CC-BY-SA-3.0
Organizations MTU, Michigan_Tech's_Open_Sustainability_Technology_Lab, MY4777
Language English (en)
Related 0 subpages, 0 pages link here
Redirects PET Bottle Shredder
Views 414 page views (analytics)
Created December 4, 2014 by Kemyszka
Last edit September 18, 2025 by 190.150.146.164