Redabot has two 3/4" bore x 1" stroke pneumatic cylinders that are used to shift gears, and no other pneumatic actuators. Frequent gear shifts are not required, so the air needed can be stored in Clippard tanks, which team Redabot fills to 120 psi before each match. Redabot does not have an on-board compressor, but does have (1) a 0-160 psi pressure gauge attached to one of the Clippard tanks, (2) a correctly installed Norgren regulator set to provide 60 psi air to the valve that drives the gearshift cylinders, and (3) a correctly installed relief valve, with a fitting attached for connecting the off-board fill tube.
To comply with robot rules <R95> and <R96> which require the Thomas compressor to be used for storing air in the Clippard tanks even if the compressor is not on-board the robot, Team Redabot has cleverly constructed a portable compressor kit including an EX18-12 battery, a 20A in-line fuse, a Spike relay, and a custom circuit with a mechanical switch to enable the Spike.
Team Redabot uses the following procedure to fill Redabot's Clippard tanks before each match: (1) open the relief valve and connect the fill tube from their portable compressor kit, (2) switch on the compressor, (3) read the on-board Clippard tank pressure gauge and switch the compressor off when it reaches 120 psi, (4) close the relief valve, (5) disconnect the fill tube.
Today is Thursday. Team Redabot has passed all of the
2006 FRC Robot Inspection Check List items except the pneumatics area. You, as their robot inspector at the 2006 Championship, have just witnessed a demonstration of the tank filling procedure described above, and it worked perfectly.
Does Redabot pass inspection? Why, or why not?
Cite any robot rules, Team Updates, and/or GDC Q&A responses that support to your decision.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)