Thread: Flat Hose
View Single Post
  #15   Spotlight this post!  
Unread 16-02-2010, 02:57
artdutra04's Avatar
artdutra04 artdutra04 is offline
VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: Mar 2005
Rookie Year: 2002
Location: Greenville, TX
Posts: 3,078
artdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond repute
Re: Flat Hose

Quote:
Originally Posted by rsisk View Post
I see that the explanation of what we are intending to do is not clear.

We are thinking of putting a hook on the end of a flexible tube/hose that is deflated. We would inflate the hose with air from the accumulator(s) which would raise the hook to the point we could grab the bar. Then we would use a winch to lift the robot, probably deflating the tube once the hook is on the bar.

So there is no piston in the hose.

I'm still unclear whether the hose would be considered a cylinder or accumulator. It's intended use is closer to that of a cylinder.

Based on Al's last comment about the last para. of 8.3 it looks like the intent of the rules is to have a well-defined set of energy sources/actuation systems would probably exclude what we are thinking of doing, but...

...once we get specifics on the hose and fittings, I'll submit the question to the GDC for a final ruling.
Would coiling up a thin (like 1/16" or 3/32") strip of polycarbonate with the hook at the end and a servo/pneumatic release pin work?
__________________
Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

世上无难事,只怕有心人.