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Magic trick a metal sphere through a knife — image 1
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Magic trick a metal sphere through a knife

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Metal sphere (from a bearing) penetrates a knife.

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Model information

Category
Props
License
Creative Commons — Attribution — Noncommercial

The metal sphere through a knife

Material:

I used PETG but PLA wil be fine as well.
Infill 20%
No support, no birm

Print the knife NO support (ignore the warning) (the printer will manage the span/bridge as it is not wide)
The texture over the abridged area differs a bit, and therefore it is visible on the top of the knife, sand it away removing the evidence of the magnet below

Additionally you will need:

1) Magnet D=8mm, H=1.5mm
2) Some glue for the magnet and the handle
3) Fine sandpaper
4) Two metal balls as used in bearings (two nuts will work for testing)

The magic presentation:

Enjoy!
s10k

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