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Unread 19-01-2007, 20:37
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kmcclary kmcclary is offline
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Re: Vacuums!

Quote:
Originally Posted by drewjones13 View Post
Is there an image/scematic for the most basic vacuum system using solenoids and the air storage tanks?? can you please post a url to it or maybe email it to me?
Wait a sec... That won't work. There's simply no way to run the kit Vacuum Generator (VG) an entire round solely from tanked air.

Unless you are generating vacuum with a kit motor and a pump assembly, you'll need the compressor, just to operate the VG. The kit VG is a Venturi device. Think of a soda straw that you blow across, to raise the liquid in a drink cup. It works like that. So, the VG is going to require constant airflow running through it just to operate, whether or not you're holding ANYTHING. Without a compressor, you'd run out of tanked air in only a few seconds after the very first time you activated your vacuum generator!

The basic schematic for a compressor based system is shown in the 2007 Pneumatics Manual. (See the sticky link for it at the top of the Pneumatics Forum.)

That said... *IF* you can come up with a vacuum pump assembly that you can hack to be run by a kit motor, NOW you have something! Your simplest move would be to design a "reversable air pump", and directly connect it to your suction cup. Run it one way to stick, and reverse the motor to blow-off the ringer.

If that's not possible, you'll need to either vent the line between your motor based homebrew VG & suction cup with a valve of some kind (the kit valves won't work for this app - they require pilot air pressure to work at all), or else inject compressed air with a separate valve into the line. (The latter IS possible with kit valves, but the system is more complex than a venting solution, since you're right back to requiring stored air or a compressor, JUST to run the kit valves!)

Does this answer your question?

- Keith
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