I am unsuccessful at finding the kids toy. I owned one, maybe ten years ago. Hand held, black plastic...
An artist named Paolo Salvagione made an arduino controlled "string fountain" a bit less than a year ago on this principle. It would have to be dramatically up scaled to launch a paintball or similar. His artistic interpretation was the vibration modes of the string look nice and artsy, whereas the engineering launch device I'm thinking of would be a perfectly non-vibrating circle.
Awesome. Putting something on this string that tries to passively slightly bend the string while allowing the string to pass through should be enough to have it lifted and kept up.
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I am unsuccessful at finding the kids toy. I owned one, maybe ten years ago. Hand held, black plastic...
An artist named Paolo Salvagione made an arduino controlled "string fountain" a bit less than a year ago on this principle. It would have to be dramatically up scaled to launch a paintball or similar. His artistic interpretation was the vibration modes of the string look nice and artsy, whereas the engineering launch device I'm thinking of would be a perfectly non-vibrating circle.
Awesome. Putting something on this string that tries to passively slightly bend the string while allowing the string to pass through should be enough to have it lifted and kept up.