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3D labyrinth for a ball bearing (12 mm or 0.5 inch) Just navigate the ball from the corner with the octagon holes to the spot next to it (with the hexagon hole). Insert the ball during printing !!
3D labyrinth
Order summary
3D labyrinth
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Quantity:
Subtotal
$
Delivery (May 02 - May 04)
Free
Total
$