You can use the PET Bottle Cutter to cut sprips from the PET bottles with selected width. The width is defined by spacers which are put under the blade. The PET strip can be then used in machine which converts it to filament for 3D printers.

I'm using this bottle cutter for some time and it works very well. You will gain the skill after a few bottles.

The metal sheet from the bottle can protects the plastic body because the edges of the bottle and strip are quite sharp and can scratch the plastic.

Bill of material:

M8 screw rod with length about 40-45cm
2x M8x40 screw
4x M8 nut
4x M3.5x20 woodscrew
9mm cutting blade
Bottle can

Assembly:

Print all the parts (M8 nuts are inserted inside the knobs during print)
Cut the bottle can sheet according to the template
Wrap the sheet abound the body
Insert the nut and screws inside the body
Insert the needed spacers
Put the cutting plade on the spacers and prot it up agains the screws
Add the rest of the spacers and tight them with the knob
Add the screw rod to support the bottle

You can follow the photos.

Here you can see how I cut a bottle using this cuter:

Check also my PET Strip Spooler and Spool Holder and PET Bottle Cutter with Bearings.

Update 12.1.2023 - Added spacers with emposed height
Update 18.4.2023 - Added smaller version of the knob (PET_Bottle_Cutter_Knob_M8_Small.stl)

Simple PET Bottle Cutter

by mirabatek · original on Printables ↗

Hobby & Makers / Tools

♥ 1.8k⬇ 11.1k🖨 81 prints

License: Creative Commons — Attribution — Noncommercial ↗petrecyclebottlecutter

Print profiles

PET_Bottle_Cutter_Body.stlDEFAULT
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Circle_0.5mm.stl
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Circle_6mm.stl
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Circle_2mm.stl
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Circle_8mm.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Circle_1mm.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Knob_M8.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Template.stl
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Prints on: A1 mini 0.4PLA
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Spacer_9mm.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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Spacer_10mm.stl
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Prints on: A1 mini 0.4PLA
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Spacer_7mm.stl
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Prints on: A1 mini 0.4PLA
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Spacer_6mm.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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Spacer_8mm.stl
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Prints on: A1 mini 0.4PLA
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Spacer_8.5mm.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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PET_Bottle_Cutter_Knob_M8_Small.stl
⏱ time and weight estimated after preparation · 1 material(s)
Made to order: we prepare this file when you order, which adds a few minutes before printing starts.
Prints on: A1 mini 0.4PLA
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