Circle game gravity knife
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A gravity knife carefully crafted and expediently designed to inflict emotional damage. Also an annoying fidget toy.
- Rating
- 4.873 / 5
- Likes
- 3,436
- Downloads
- 14,859
- Makes
- 170
- Views
- 80,608
- Reviews
- 150
Updated at source:
Model information
- Source
- Printables
- Category
- Other Toys & Games
- License
- Creative Commons — Attribution — Noncommercial
I also hopped on the 3D printed gravity knife craze, I just designed mine with a slightly different approach.
The handle is slightly redesigned version of the beautiful Carrot Gravity Toy Knife remix made by Chris Klepel.
Have you noticed the subtle stylized letters I added to the sides? If not, it's still OK… ;)
Instructions
Printing
Print all parts as they are orineted in the project file. Use a lower layer height for the screws and the blade for finer treads, 0.15 worked just fine for me. Use supports on the inner half of the handle and use 100% solid infill for the blade to give it a little bit more weight.

I've printed mine using Prusamnet Galaxy Black PLA, Fiberology PLA Mineral Marble and Fillamentum PLA Mellon Yellow. I think they work together pretty well.
Assembly
Chris suggests the use of a tap and die set on the treads. Since my blade is printed horizontally I figured all I had to do is driving an M5 screw into the handle to smooth out the treads. Try not to overtighten the printed screws because they will definitely break.
Happy pranking… I mean printing! ;)