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Sandworm Trap

VID_20231031_025144205.gif Sandworm Trap
IMG_20231031_030838246_HDR.jpg Sandworm Trap
IMG_20231031_030846360_HDR.jpg Sandworm Trap
IMG_20231031_024418620_HDR.jpg Sandworm Trap
IMG_20231031_024714279.jpg Sandworm Trap
IMG_20231031_025438899.jpg Sandworm Trap
IMG_20231031_024308085.jpg Sandworm Trap
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3D design format
ZIP Folder details Close
  • Sandworm.zip
    • hook.STL
    • Inside_long_link.STL
    • Inside_short_link.STL
    • LowerRing.STL
    • Outside_long_link.STL
    • Outside_short_link.STL
    • Pin.STL
    • Pin_ring.STL
    • Sandworm Trap Instructions.pdf
    • trigger.STL
    • UpperRing.STL

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Publication date 2023-10-31 at 07:13
Design number 1548156
qfrederick

qfrederick

3D printer file info

3D model description

This is a design made purely for entertainment. No, it’s not a trap to catch sandworms. I had this vague idea of a trap that closed, sandworm-mouth-style, around the hand of any unsuspecting victim who tried to take something from inside. I tried a circular scissor linkage, but the geometry didn’t permit straight pin connections at the corners, and I didn’t want to use ball/sockets or bent pins. Then I came across this video of three spherical scissor linkages on a shared hub. So I based a new design on it, and this is the result.

It uses rubber bands to store the energy and has no locking mechanism. An inverted t-shirt can make this look like a cloth bowl, although that will slow jaw closing speed slightly. The locus of the three ‘jaws’ is the surface of a sphere with radius of about 5.25”. Either raising or pressing down on the trigger ring will disengage it and allow the jaws to snap upward and together. They won’t have enough energy to do any harm, so it is ideal for pranking someone.

You’ll need about 300 g of filament, a soldering iron to weld a few pieces together, and several rubber bands.

3D printing settings

Printing and assembly instructions are in the guide document.

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