mouse trap car axle holder with ball bearing insert,axle and wheel
thingiverse
The Axle At one end, a rectangular cutout is 1 cm deep and 0.5 cm high with a thickness of about 2 mm, allowing for a standard-sized Popsicle stick or a custom-cut piece of wood to be inserted for added stability and improved performance. The axle holder has a specially designed cutout that accommodates a ball bearing from fidget spinners, secured firmly in place using hot glue. The Axle For optimal results, ensure the axle slides smoothly within the bearing; if any loss of movement occurs, apply hot glue to keep it securely in place. The Wheels To maintain their position on the axle, the wheels require a layer of hot glue.
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