First fare 2013 pneumatics 2013Presentation Transcript
Dale Yocum, Head Mentor, Team 1540
The Flaming Chickens
Based on presentation from
Tim Bennington-Davis, Team 1425
Error Code Zero
Why Use Pneumatics ?
Powerful, reliable, durable
Applying constant force
What will it cost you?
Space on the robot
Logistics to get the right parts
Regulators and gauges
New model in 2011 – lighter, less air
Earlier model also legal (probably)
Mount with rubber mounts to solid
Power with Spike (replace fuse with 20A
Safety Relief Valve
Releases at 125 psi – prevents overpressure condition. Adjust it!
Must be placed on high-pressure side
(prior to regulator)
Must mount on compressor
Reservoir for pressurized air
May use more than one
Typically used on high-pressure side
Gauges and Regulators
Norgren regulator mandatory, regulates
high pressure side down to 60 psi
Must have gauge on high pressure side,
and on low-pressure side
Look for the arrow on regulator!
Switch opens around 115 psi, closes at
95 in theory. You can’t adjust it.
Must be connected to digital input on
digital sidecar – NOT in series with
Releases air from the system
Must be in an obvious place
Driven by pneumatic bumper on cRIO
Available in single- and double-action
Use 12v Valves
Must have clear pressure marking
Typically 0.25” OD
Always cut with tubing cutter, square
Typical device is a linear ram
Available in many sizes
3 cylinders are available at no cost but
you must order them
Flow control valves
Mount at air inlet on actuators or in-line
Control speed of action, not force
Big cylinders use more air (stroke and
Big cylinders are slower.
Don’t power them in both directions if you
don’t need to.
Frequent use of air during match can
outrun your compressor
If your air use is limited, you can
consider charging tanks in the pit, and
not mounting compressor
Save weight, cost and battery power
Not tolerate air leaks.
Not cut pneumatic tubing with anything other than
a pneumatics tubing cutter.
Not use a actuator bigger than you need.
Tape metal fittings up to but not including the last
Optimize air storage capacity.
Creating substantial force
Not so good for
Precision position control
FIRST Pneumatics Manual
Rules from 2013