Quote:
Originally Posted by Cory
McMaster has all the surgical tubing you'd need, but it's subpar as your force drops off as soon as you start lifting and the carriage will only be partially supported. Constant force springs are much better. I know 1717 used a device in 2011 that integrated a constant force spring into a box with a cable that extended/retracted. I think they were called "pull boxes", though as I recall it they were only good for up to 6 lbf or so.
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I know 846 used one of
these integrated tool balancer constant force spring assemblies in 2011. They're distributed via SDP-SI, and should have enough oomph to counterbalance an elevator. However, they are a tad expensive.