Miniature downhill bike

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Description:

This is a miniature downhill mountain bike we created which has working rear suspension and linkage, rolling wheels and handlebars that turn. We are working on version 2 with working front suspension and a more durable structure. The current version is printed in separate parts and then the parts snap fit together to create the assembled bike.

Check out our Facebook page for a video of the bike working and a stop motion video at the local trails! 3Dprint.com also did an article on the 3D printed stop motion video. A picturesque blog for how to best assemble the bike is also now up.

UPDATE: the front forks have been updated to include a bolt through pin to make the whole front end more rigid and robust.

Print level: Expert

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Model originally printed on: Makerbot Replicator 2X

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The parts were printed in ABS with 2 layers and 10% infill, the spring damper was printed with 20% infill as the spring needs to be a bit stronger. The spring was also printed almost vertical as we found that this resulted in a more successful spring. Total printing time is approximately 13 hours at those settings. The spring requires delicate support removal and more support removal is necessary on a few of the other parts.

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