Air Motor

[VH_man]

Video shows everything......

I think i might end up using this system for some kind of automatic gun....

[hi]

that video is in complete in my opinion. it certainly is interesting, but a little more information is in order i think.

other wise congratulations.

[VH_man]

what info do you desire?

its at a pressure of about 18-20 PSI (high flow)

the air cylinder is 1/2 inch bore, about 8 inch stroke

switching is done by a 12V power supply, an electronic solenoid valve, and 2 electronic switches.

cyclic rate is around 8-10 in/out's per second, and rate increases with flow.......

[hi]

i havent built one...yet.

i just couldnt tell if it was a rotary motor or a traditional motor with a piston. i dont understand what the solenoid valve is for. the ones i have seen are purely mechanical and operate by pushing up a one way valve on the way up, which lets a burst of air in, which forces the piston back down.

where did you get the design/idea from?

what is it used for? is it just for fun, or do you play to power something with it? air motors have potential, especially with rising gas prices...

[jrrdw]

Unless you use a good heavy flywheel that long of a stroke is going to defeat the usage. For power and speed you need a big bore and short stroke. No load is the only reason it's running now.

Hook something to the crankshaft and try to power something, then you will see a huge difference in performance.

Very cool though. Are you using a oil less compressor pump for the build?

[spudkilla]

Nice, I used to have a vex kit.

[VH_man]

Thanks for the questions.

the electronic solenoid is all that i had on hand, and it happened to turn into my air "swtich". if i ever actually construct an air motor i will be using a mechanical switch.

BTW, all the thing does is make a rod move back and forth really fast....... but its a start. Im thinking i want to make it spin something, but i more want to adapt it to making an automatic airgun of somesort. If i take off the rear swtich, the cylinder remains in the backward position. if i hit the switch briefly, the cylinder moves to the outward position and then returns to the "in" position....

sorry about the crappy video, i didnt realize it was THAT bad...... im kinda pissed i took it apart now, because it seems like i only just tapped into its potential.