replacing the swivel handle with a homebrew pneumatic cylinder made in the shop. With a single button press, a swoosh of compressed air either clamps or releases the table. Best of all ...

The star of the show is a heavy duty wall-mounted can crusher that [Making Stuff] built from some scrap steel and a pneumatic cylinder hooked up to the garage’s compressed air system.

Pneumatics looks at the use of compressed air to create a circuit ... of the most common pneumatic components.A single acting cylinder will only extend through pressure from the pump.