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Archive: https://archive.today/egTZv

From the post:

>Although firmly entrenched in the cultural zeitgeist now, the skateboard wasn’t always a staple of popular culture. It had a pretty rocky start as surfers jankily attached roller skating hardware to wooden planks searching for wave-riding experiences on land. From those rough beginnings it still took decades of innovation until Rodney Mullen adapted the ollie for flatground skating before the sport really took off. Skateboard hardware is quite elegant now too; the way leaning turns the board due to the shape of the trucks is immediately intuitive for even the most beginner riders, and bearing technology is so high-quality and inexpensive now that skateboard hardware is a go-to parts bin grab for plenty of other projects like this plasma cutter modification.

Archive: https://archive.today/egTZv From the post: >>Although firmly entrenched in the cultural zeitgeist now, the skateboard wasn’t always a staple of popular culture. It had a pretty rocky start as surfers jankily attached roller skating hardware to wooden planks searching for wave-riding experiences on land. From those rough beginnings it still took decades of innovation until Rodney Mullen adapted the ollie for flatground skating before the sport really took off. Skateboard hardware is quite elegant now too; the way leaning turns the board due to the shape of the trucks is immediately intuitive for even the most beginner riders, and bearing technology is so high-quality and inexpensive now that skateboard hardware is a go-to parts bin grab for plenty of other projects like this plasma cutter modification.
[–] 1 pt

Similar things have been done before with laser engravers/cutters. While rotary fixtures are commercially available for various laser engravers, this engineer made a DIY version that does not require electrical connection to the laser cutter to power its stepper motor. The DIY version is entirely mechanical and uses the laser engraver's existing Y axis to push the sled along on roller bearings (like skateboard wheels) to translate linear motion into rotary motion at a 1:1 ratio. It's really clever if you don't want the expense of a motor driven rotary attachment.

RDWorks Learning Lab 122 Let's Make a Rotary Engraver: https://www.youtube.com/watch?v=-uafUAX04G4

RDWorks Learning Lab 123 Let's Test our DIY Rotary Engraver: https://www.youtube.com/watch?v=mCQqn0kfvCo