Legal ways of providing suction?

[dtgriscom]

Originally Posted by yash101

I think it's time for some machining . You could build a compressor-based suction-cup. However, that would generate a lot of suction, so you should really have a manual release valve.

Won't work for any extended amount of time, because air leaks past the ball covering. You'd need continuous suction to maintain your hold for more than a couple of seconds.

Originally Posted by yash101

I don't know if CD likes ASCII art

Try the [code] tag; it will render using monospace fonts, e.g.

XXXXXXXXllllllll
llllllllXXXXXXXX