Quote:
Originally Posted by pfreivald
That's a lot of air! It'll be impressive to see at the very least.
We entertained the idea of a climbing-only 50-point robot that did everything with stored elastic energy. It's well doable given the design constraints, but we want to be able to shoot, too...
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It will be impressive if it works and spectacular if it fails
As for the air volume, we are very lucky that one of our engineer mentors has done a great deal with hydraulics and pneumatics and was able to help us out. The math is really quite simple in the end and based on how it worked we ordered cylinders we felt would be adequate. The good news is that we were able to test them on Saturday and they match the math quite well so there is a pretty high degree of confidence on that part of it.
One thing to note. The new tiny compressor gets VERY hot and we blew an air line on the high-side (120 PSI) due to the hot air softening the tube. Pretty loud POP when it's 18" from your head. We also had another line blow out of the little quick disconnect fitting unexpectedly due to it being warm and a little bit of wiggling. This has made us gear the design in such a way as to reduce the amount of tubing as much as possible. Anyone interested in pneumatics should look at McMaster-Carr, they have some very nice fittings rated high enough for what we are doing that will also reduce the number of parts needed.
-Mike