Mentors Workshop Pneumatic Sub-System Mark McLeod Team 358 Festo/Hauppauge H.S. F For I Inspiration and R Recognition of S Science and T Technology.

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Presentation transcript:

Mentors Workshop Pneumatic Sub-System Mark McLeod Team 358 Festo/Hauppauge H.S. F For I Inspiration and R Recognition of S Science and T Technology

Objectives  FIRST Rules & Restrictions  Official Suppliers & Other Sources  “Circuit” diagram  Sample Layout  Basics/Components  Design Notes  Potential Problems  Keeping Students Busy  Typical Schedule

FIRST Rules & Restrictions  Pneumatics restricted in quantity and type  Only provided type of compressor, storage tanks  Official suppliers – Bimba, Parker Hannifan, Festo, Clippard  Free items order sheet in FIRST Pneumatics Manual  Compressor on-board or off-board  125psi max storage / 60psi working (must have 2 gauges). Can have a second lower stage.  Unmodified – “out of the shipping box”  Vacuum devices not considered pneumatics  Subject to Inspectors ruling

Official Suppliers  Official Suppliers   Parker Hannifan  

Sample Pneumatics Diagram

Sample Layout

Basic Components  Compressor  Solenoid valves  Actuators  Gauges  Pressure & transducer sensors  Regulators  Storage tanks  Flow control  Brass & quick connect fittings & tubing

Design Notes  Actuators are lighter than motors w/ lbs of force  Don’t overheat or stall  Linear or rotary  Can be damaged if struck  Consider compressor weight  Consider mechanical stops  Flow control to slow/reduce actuator reaction  Force is adjustable by bore of cylinder and flow control  Single solenoid (retracts upon loss of power)  Double solenoid (maintains position on loss of power)

Potential Problems  Air leaks  Broken pressure sensor  Compressor hooked up backwards  Values connected incorrectly  Exposed tubing vulnerable to snagging  Too much force can damage manipulators

Keeping Students Busy  Prototype testbeds  Design pneumatic manipulators

Typical Pneumatics Schedule  September thru December  Develop basic skills  January thru March  Six week build period  Robot design – space for electronics and wire runs  Actuator requirements  Designing and testing solutions  Resolve physical layout  Integrating solutions with electrical/control system/mechanical  Regional event  Inspection

Workshop Materials  Compressor  Tubing  Miscellaneous connectors- brass and plastic  Solenoids – double & single  Clippard tank w/pressure gauge or sensor attached  Selection of actuators  Adjustable flow value