So a sprinkler valve wil open just as fast with a blowgun to the atmosphere and using a vacuum will not help the speed?
Just making sure.before I start making anything.

So the gas at the valve is the smart gas but the gas at the end of the tube is dumb/slow gas because sound can't travel there(end) fast enough to tell it to hurry it's ass up?

Simplified..I didn't gogle

Well before I devised some type of mythbuster type of experiment I wanted to see if the whole idea was useless. I see what you mean about the pilot chamber and the pressure. Same pilot volume but more pressure means more vacuum that may not be possible because of pump or vacuum chamber. Edit:@D_Hall...

First off I did search the forum and could not find anything related.It may be because it is not reasonable but I have to ask because it may be effective in some other application. Question:If a blow gun/mod blowgun makes a big difference in the valve open time. What if you had a vacuum chamber to h...

Me and my son were bored one day so to the internet we go. We found some info on catapults ..so why not launch a spud. The tease Watch close.. Dog likes taters. Misfire. Son almost catapults his face. Girl jumps fence and drops cookies then just brushes them off. Dog makes kid look stupid. and here ...

Nice design but I would listen to these guys about the safety of the parts you used. I made the same type of mistakes and they got me on the right track now.

Sry double post...again but Mr. C made me with his bg mod. Thanks for the explanation. I see what you mean now Mr. C. Basically the tube would need to pressurized also and that volume of air would need to exit ..slowing everything down. I'll be increasing the pressures also.I just wanted to start wi...

jackssmirkingrevenge wrote: I concur with MrC, lose the hose and the nozzle on the blowgun and crank up the pressure.

Done............ hose is gone....camera battery is dead so I'll update this in the am.

A 3/8" hose would be worse because it has more volume. Which means the blowgun takes longer to 'evacuate' the pilot volume of all the air, which means the valve opens slower which in turn means lower performance. I'm a bit lost there...as long as it gets out of the valve who cares where it goes the...

Sorry for the double post ....again. The sun was in my eyes, my shoe was untied, I had a flat tire, it sliped.....sry :P For starters I would get rid of the hose, limits performance. If you want to keep it, at least mod the blowgun (I believe I made a how-to on modding blowguns in the how-to section...

hahaha! Mom must be so proud :D Definitely mod the blowgun, you'll be impressed by the difference. Also, 60 psi is a tad low, if you're using pressure rated fittings there should be no safety issues with cranking it up to 150 ;) except your your target of course, the c-cell should go straight throu...

ok....... for real.....last thing in my noob post....just finished it with the advice of the great folks here. Thanks guys.

Finished( I think)

Thanks Mr.C

I don't know if I'm getting it fast but I'm sure documenting my ignorance well. Hope it helps someone else.

Put in the fitting(outside view)


inside





EDIT:swear word

I drilled out the center like you said.........but also have some solenoid parts to cut off the air for that. The bleed already has a screw so why do I need to epoxy it? Crap....guess i brok my promise now.

OK last set of questions in this topic..I promise :wink: I've made my first spudgun since joining spudfiles. It's a simple over/under sprinkler valve. I want to mod the valve for blowgun. The vids and tuts I've looked at have the bleed valve in the center but the valve I have has it off center. I'm ...