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Short question topic

A place to ask general spud cannon related questions.
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Unread postAuthor: jackssmirkingrevenge » Sun Dec 04, 2011 6:16 am

wyz2285 wrote:Jack does your full auto reaches a 600 rpm? Because in the fastest ROF I can choose from the chip is 10 Hz(10 Rps).


I'm sure it does, you could check the video with audacity.
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Unread postAuthor: POLAND_SPUD » Sun Dec 04, 2011 8:23 am

Jack does your full auto reaches a 600 rpm? Because in the fastest ROF I can choose from the chip is 10 Hz(10 Rps).
10 RPS is rather optimistic...
if you want to have 10 RPS whatever you're using as your air source has to be able to deliver 10 times the chamber volume in 1 second

though if you plan to use bbs that shouldn't be a problem


Ohhh and let me expand on my previous post... if you have a 5 way valve you could theoretically have two guns in one :D
if all you need is a nice little plinker for airsoft you could use the DCV itself as the main valve

and voila you've got two guns in one and effectivelly you doubled the ROF

since valves can be stacked toghter...
...as seen here
Image
.... you could theoretically stack two valves to get 4 times the ROF... 3 to get 6 times the ROF of one gun... and so on :wink:
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Unread postAuthor: wyz2285 » Sun Dec 04, 2011 8:45 am

You blew my mind Poland! Hell yeah why not making a double barrel bbmg it would be spectacular :D
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Unread postAuthor: Goats spudz » Wed Dec 21, 2011 9:53 am

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Where's my Chuck key?

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Unread postAuthor: ramses » Wed Dec 21, 2011 10:23 am

Probably, assuming it has a rubber gasket. It was designed for water, so there might be slight leakage.

You still shouldn't try to disconnect it under pressure, though.
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Unread postAuthor: jackssmirkingrevenge » Wed Dec 21, 2011 11:12 am

Only if used with a carbon fibre chamber ;)
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Unread postAuthor: Goats spudz » Wed Dec 21, 2011 12:29 pm

jackssmirkingrevenge wrote:Only if used with a carbon fibre chamber ;)
Shhh. dont want to attract any trolls :D

and would a normal QC with a check valve behind it be better for releasing under pressure?
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Unread postAuthor: ramses » Thu Dec 22, 2011 11:09 am

The issue is that the mechanism binds under pressure. The ball bearings lock against the sleeve and the other part. If you manage to move them (think hammer), you will significantly wear the quick connect.
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Unread postAuthor: wyz2285 » Sun Dec 25, 2011 10:19 am

Hi I´m making a new pcp rifle, and I´m planing using a stainless steel tube as chamber, 0.75mm wall. Is it safe to use 1000 psi with it?
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Unread postAuthor: jackssmirkingrevenge » Sun Dec 25, 2011 1:17 pm

What diameter is the tube? CO<sub>2</sub> cylinders have a similar wall thickness and are definitely safe at that pressure.
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Unread postAuthor: wyz2285 » Sun Dec 25, 2011 1:59 pm

2.2cm id i think
(my first post through ipad :D )
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Unread postAuthor: jackssmirkingrevenge » Sun Dec 25, 2011 2:01 pm

wyz2285 wrote:2.2cm id i think


Sounds about right.

(my first post through ipad :D )


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Unread postAuthor: wyz2285 » Sun Dec 25, 2011 4:16 pm

Thanks, good to hear that, it looks kind thin so I was worried about the safety :)
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Unread postAuthor: subterranean » Mon Dec 26, 2011 4:29 am

Where can i get some tubing with an Inner dia. of 4.5mm (.177 pellet) ?
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Unread postAuthor: mark.f » Mon Dec 26, 2011 8:11 pm

Go to an automotive store and buy some 1/4" steel brake line.
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