OTF Fidget Knife Scratcher
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Scratcher for the OTF Fidget Knife
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Model information
- Source
- Printables
- Category
- Other Toys & Games
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
A scratcher part for the OTF Knife fidget toy. It uses a crank mechanism to open the scratcher at 90 degrees.
You can print it in one part or two parts, I suggest printing it as 2 parts since you need to make sure the mechanism is smooth enough to for it to work.
I used the stronger spring part from the original model when testing, weaker springs might work, but not tested.
After printing it, take the arm with the scratcher part(you can disassemble it if you printed it in one part) and make sure every part can move freely, it should be able to move around using gravity only.
It's not perfect, it gets stuck sometimes, I didn't have enough time to perfect it, I noticed that opening it at an angle helps.
When scratching pull a little on the lever to prevent it from moving down and closing.