|
Re: pneumatics or hydraulics ?
As long as you size the cylinder correctly, pnuematics will be plenty strong. The correct cylinder running even 50 - 60 PSI (about 4 millibars) will be enough to lift someone.
The cylinder length will have to be determined by your design. A 1 1/2 to 2" bore should work. The mounting of the pivot points is also critical to how much the cylinder has to work. You will have to do some trial and error here.
__________________
2006 Maryland Delphi "Driving Tomorrow's Technology" award
2006 Connecticut General Motor's Industrial Design award
2005 Finalists-----------New Jersey (along with our alliances again, 56 & 303)
2005 WINNERS of the Radio Shack Innovation in Control Award (not once, but twice!  )
2004 WINNERS ------ Johnson & Johnson Mid-Atlantic Regional (also thanks to our alliances 56 & 303)
2004 General Motors Industrial Design Award Winners
2004 Archimedes Quarterfinalists (also thanks to our alliances 121 & 386)
NEMO _________ NonEngineering Mentor Organization
"Make it idiot proof and someone will make a better idiot!" - author unknown
|