aerostock delta magnetic effector
thingiverse
Countersunk ring magnets (15mm x 3mm) and steel balls (12mm, drilled to 4mm with carbon-rod inserts) replace ball links; view this method on the "aeropic" YouTube channel. Threads about the approach are posted under "aerostock delta." Berrybot3D's ideas were crucial. The 12mm balls yield a static strength of over 750g, while 10mm balls manage only up to 500g. Epoxy and steel seats have been added for improved ball support. Videos showcasing the system in action can be found at http://youtu.be/R3WuQjNps9E, while explanations are available on Thingiverse (http://www.thingiverse.com/thing:95258).
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