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Make your own caltropsOther
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Make your own caltrops with this core and some 1 inch common nails!
scad file included for your customization.
Insert nails from the bigger hole to project out of smaller hole at opposite end.
To complete the caltrop, inject hot melt glue in one hole while covering the other holes with a piece of cardboard until cavity is filled.
Materials and methods
- 4 pcs 1 inch common nails
- hot melt glue
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