Spencer's Toy Car with Snap-Fit Wheels

This is a toy sports car with moving wheels that snap into place after printing.

Originally designed for my toddler, it turned out to be a hit, and I'm glad to share it here with the 3D printing community. And, yes, it's rugged enough for a toddler.

Files are in STL and 3MF formats. If you choose, the right and left wheels have mirrored treads on them. There are separate files with individual wheels (as you may prefer to print all four wheels and the car on one plate and organize them yourself), or one file with all four wheels already laid out. The wheels are NOT labeled. Just match the wheels so the same treads are on the same side. The wheels snap on to the pins of the car. They are not meant to come off again once they are on. It may take a little force depending on the material chosen. The pins are thick enough to resist easy breaking when played with by a child.

I printed it on an Elegoo Neptune 4 Plus FDM printer without any issues. I did not include a photograph here as it has some custom changes that don't match the model.

Recommended Settings:

• Designed for FDM, and should have no issue for SLA
• 0.20mm layer height is the maximum. For a smoother finish on top, I highly recommend using variable layer height or just an overall thinner layer height.
• Supports for the wheel wells are recommended but not required. The bridge is relatively small and not visible once the wheels are in place.
• Recommended minimum 15% infill for all parts to give more strength
• Wheels are to be printed design side down, and are already in the correct orientation
• Car is to be printed right side up, and is already in the correct orientation