This is a PET bottle cutter.

It uses 2 608zz ball bearings to cut the PET bottles. The bearings must be sharpened with an angle grinder to be able to cut.

Full Bom

2 M8x50 hex screws{holds the bearings

1 M8x30 hex screw with a cut on it which serves as a guide. with this screw you can adjust the width of the strip that needed to be cut.

4 M8nuts

2 M8 nylon nuts

3 M8 washers

1 M5 nut

1 M5 threaded rod which serves as a botlle holder

4 M4x30 allen screws which fix the cutter onto a piece of wood, a table and so on

This cutter is part of an entire machine. You cand find it on etsy.

https://www.etsy.com/listing/1501105570/3d-filament-making-machine-from-pet