Dual valves
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Shadowscion
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When using two valves linked to one exhaust, is it better to have two separate chambers or should they be connected? I am building a fairly large cannon soon with dual valves and I think I should research somethings before buying parts
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MisterSteve124
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have them connected. You could just do this with a peice of hose or something else. Well I guess it may not matter if theyre seperate or not but it would be easier to fill and its not that hard to do.
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Shadowscion
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So have a length of hose at the end connecting the two together?
yer i'd go with as much air as you can hold so go with 2 chambers.
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spudthug
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yea look at this gun 
http://www.spudfiles.com/forums/dual-3- ... t4650.html
jsut do something like that
http://www.spudfiles.com/forums/dual-3- ... t4650.html
jsut do something like that
4" piston valved cannon-half done..( i spilt my cement...)
Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Shadowscion
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Would two 24"long 3" chambers flowing into two 1" valves restrict airflow a lot?
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Shadowscion
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A multitude of sizes, mainly a golfball barrel and probably a 2" barrel also.
ya should try and make a piston man you will be happy with the results compared to a sprinkler
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Shadowscion
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I have the valves already piston is a no-go for this project.
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Shadowscion
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Can't really do that, these valves were purchased ages ago. Anyways back to my question please.
PS: Made this 3d of what we(my dad and I) plan on building.
PS: Made this 3d of what we(my dad and I) plan on building.
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better yet use those valves as pilots for a DUAL PISTON gun that would be insane i don't think it even been done before 
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jackssmirkingrevenge
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If I could make a reccomendation...
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- save yourself some pilot volume and get better efficiency ;)
- improved.JPG (11.86 KiB) Viewed 3736 times
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Shadowscion
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Anyways...
Which of these configurations would yield the best results?
Attached is the ggdt sheet for the gun we want to build. I tried it with both 3" and 2" chambers, the 3" yielded only 8~fps and 1ms more than the 2" chamber for some reason, so I think we will go with the 2" chamber. The projectile used was a golf ball. This sheet more than tripled the fps of my current golf ball cannon(what does that say about it -.-) and I am already amazed with the one I have.
I don't know how accurate this is though as I don't know the CV of my valves.
Which of these configurations would yield the best results?
Attached is the ggdt sheet for the gun we want to build. I tried it with both 3" and 2" chambers, the 3" yielded only 8~fps and 1ms more than the 2" chamber for some reason, so I think we will go with the 2" chamber. The projectile used was a golf ball. This sheet more than tripled the fps of my current golf ball cannon(what does that say about it -.-) and I am already amazed with the one I have.
I don't know how accurate this is though as I don't know the CV of my valves.
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- GGDT.PNG (27.84 KiB) Viewed 3713 times