Quote:
Originally Posted by razor95kds
Thanks for all the photos and links for the elevators!
Our team is edging closer to our decsion of whether to use an arm or elevator, but one thing that is limiting the elevator from becoming the design choice is the linear slides. Our team has found some slides, but they are too weak. We want a single tack elevator with a beefy slide that won't weaken if robot to elevator occurs by accident. We like the size of team 64's in 2005 but cannot find a slide of their size. Any help with this would be greatly appreciated.
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We did elevators in 2005 using Igus drylin linear bearings.. You're welcome to come visit and we'll show you how we did it and such (we always like to talk to other teams)
here's some things I found were good and bad.
Good-
linear tracks are strong.. we cheeseholed the heck out of ours and we didnt have a problem. It did sway a little at the top but then again, we did go extremely high.
Much less programming involved, we could get the thing up and running with just dead reckon code.. good arms require good control code, dunno if thats a problem with you guys.
The things are robust.. theres not much that can go wrong with a good pulley system.
Bad-
Binding.. binding binding binding, makes it pretty hard to drag up the linear bearings (even with no load) we used 2 fisher-price motors in their plastic gearboxes attached to a spool.
Cables are annoying.. I can't stress this enough. cables have to be tensioned, there has to be a return cable.. its just annoying and unless you think it thorugh its full of surprises.
Good luck with whatever you choose