plastic bottle cutter

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2811578.

i based this from youtube design. https://www.youtube.com/watch?v=JMbT4DOi21U the cap that holds the blade in also snaps closed to keep cap on securely.
i made slots for the blade in 1/8 increments, ranging from 1/8 to 1 inch. i included a step file in case you want to make changes and personalize it in any way.