Quote:
Originally Posted by DonRotolo
Cubic inches * # of actuations = air needed. Multiply by (output pressure / storage pressure) (usually 60 and 120) and that's how much storage you need "theoretically". (Tanks have a cubic inch capacity specified) In reality, pressure drops as you draw against it, so it becomes a differential equation... So just round up and add a tank, empirically it will be close. Then test.
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So, suppose a piston uses 1 cubic inch of air, and is fired thirty time. As per your math, it would be:
1 cu in * 30 actuations * (60 output psi / 120 psi) ~> 15 cu inches of "theoretical" storage?
And as far as the design question is concerned, my question, which I now understand was slightly misleading, was more in regards to CADing the piston.
Are there nice models with the appropriate motion constraints built in, or do people just model in a pole and restrict its range of motion?
Thanks,
- Sunny G.