Huh. That's beautiful, but it also takes some fancy drive calculations: there are a limited number of x:y ratios for which that works, and the other ratios will end up lifting the table off one set of drive rollers. (Which is a shame: it'd be lovely to have such a low-profile xy table.)
Last frames answered my doubt about this working in a dirty environment, though magnets on either side of the barrier plate have their own problems with friction and gritty contaminants...
John Bump I don't see any problem with x:y ratios. The table slides on x while y turns, and slides on y while x turns. No conflicts. ... unless you see something I don't?
I may be missing something, Bill Trowbridge -- but when x and y turn at the same time I'm expecting to see it hopping on one of the two. It looks like an overconstrained system. But I've been kicking the idea around in my head and I'm less sure of that than I was: the sliding motion may address what looks like overconstraints to me.
Wow
ReplyDeleteBeautiful!!
ReplyDeleteCewl
ReplyDeleteThanks for sharing
ReplyDeletevisionary
ReplyDeleteHuh. That's beautiful, but it also takes some fancy drive calculations: there are a limited number of x:y ratios for which that works, and the other ratios will end up lifting the table off one set of drive rollers. (Which is a shame: it'd be lovely to have such a low-profile xy table.)
ReplyDeleterelated cnc geekery: a cnc 3d printer tuned such that the motors' frequencies during movement end up playing music.
ReplyDeletehttp://www.3ders.org/articles/20150126-delta-reprap-3d-printer-plays-beethoven-fur-elise-using-only-motor-sounds.html
An awesome graphic representation of binary code
ReplyDeleteLast frames answered my doubt about this working in a dirty environment, though magnets on either side of the barrier plate have their own problems with friction and gritty contaminants...
ReplyDeleteStill watching it?
ReplyDeleteI see parts for 3d printing.
ReplyDeletedurtieduck -- there are some neat cnc retrofits for etchasketches out there. http://www.thingiverse.com/thing:6873
ReplyDeleteHuh, never thought of such an amazing piece of invention. Nice
ReplyDeleteMust have a boring life.
ReplyDeleteExcellent technology
ReplyDeleteJohn Bump I don't see any problem with x:y ratios. The table slides on x while y turns, and slides on y while x turns. No conflicts.
ReplyDelete... unless you see something I don't?
I may be missing something, Bill Trowbridge -- but when x and y turn at the same time I'm expecting to see it hopping on one of the two. It looks like an overconstrained system. But I've been kicking the idea around in my head and I'm less sure of that than I was: the sliding motion may address what looks like overconstraints to me.
ReplyDeleteJohn Bump There are lots of examples of it moving diagonally at various angles in the video.
ReplyDeletePretty cool tech
ReplyDeleteBill Trowbridge -- I think you're right. I'm going to have to print one to try it out, now.
ReplyDelete