This knife uses regular trapezoid shaped razor blades, with 3 magnets allowing it to lock closed or open.
I designed this in solidworks, and converted the files to step files for anyone who wants to modify it.
I loved the original design, but I felt it needed magnets and all the holes were much too oversized when printed dimensional accurate, I also didn't have any M2.5 hardware and I don't trust machine screws threaded into plastic so I added nuts on the blade holder.
Here is a video of it in action: https://www.youtube.com/watch?v=vB86lOwQt8g
Flashforge Creator Pro (Heavily Modified)
The only part that needs support is the blade holder, for the area the hex nuts sit in.
- 2x: Link Hex Nut
- 2x: Link Countersunk
- 1x: Blade Handle
- 1x: Blade Holder
Non Printed Parts
- 4x: M3x16mm Button Head Screws
- 4x: M3 Nylon Insert Nuts (Locknuts)
- 2x: M3x5 Button Head Screws
- 2x: M3 Nut
- 3x: 6mm OD x 3mm Magnets (Recommended for cool factor)
The button head hardware is easily avaliable at most online stores, and the magnets are as well.
I imported the original .stl files as a graphics body because there were no CAD files on the original From there I sketched it out, visually matching dimensions and adding my own touch where necessary.