Search found 1516 matches

by bigbob12345
Thu Aug 21, 2008 4:42 pm
Forum: Ammo & Parts
Topic: can you glue pvc to cpvc?
Replies: 13
Views: 29395

Actually its not the end of the story...
Pvc pipe and cpvc pipe have very different o.d's for the givin size. So it would be impossible to glue it together with suffecient strength no matter what glue you use.
End of story...finally
by bigbob12345
Fri Aug 01, 2008 12:26 am
Forum: Pneumatic Cannons
Topic: CA3 PDAB Airburst Cannon
Replies: 20
Views: 6825

Bell reducer DWV blah blah blah, doesn't really matter in this cannon Sorry I just have to quote you on that dwv is not blah blah blah, it is serious. All your cannons are an extreme danger to operate and I wouldnt want to be anywhere near it when you were charging one up or firing. I know that it ...
by bigbob12345
Fri Jul 04, 2008 11:21 am
Forum: Combustion Cannons
Topic: Overkill?
Replies: 37
Views: 6737

magnum9987 wrote:What schedule .5in pipe would be best for a marble.

type M copper is best
but if you have small marbles then sch40pvc works, and if you have big marbles then 1/2in sdr21 works good.
by bigbob12345
Thu Jul 03, 2008 12:23 pm
Forum: Ammo & Parts
Topic: Is Schedule 40 PVC safe to use?
Replies: 11
Views: 3212

Is it pressure rated or not? If its pressure rated then you have absolutely nothing to worry about with a combustion(which I am assuming is a spray and pray). If the pipe or fittings say nsf-pw on them it is pressure rated, and if they nsf-dwv on them it will blow up in your face spraying shrapnel i...
by bigbob12345
Wed Jul 02, 2008 10:51 am
Forum: Pneumatic Cannons
Topic: Holy... Crap... I didnt knolw you could do this?!
Replies: 24
Views: 4170

I think its fake
unless I see video evidence then Im not going to belive it
so go make that video :wink:
by bigbob12345
Wed Jul 02, 2008 10:45 am
Forum: Combustion Cannons
Topic: First Potato Cannon! [pics]
Replies: 14
Views: 4513

that doesnt look pressure rated at all
If I were you I would just scrap it and make another one out of pressure rated parts(if they are avaiable to you)

But I guess its a decent cannon...for your first
by bigbob12345
Mon Jun 30, 2008 10:52 am
Forum: Pneumatic Cannons
Topic: My First Pneumatic Cannon
Replies: 16
Views: 5144

Cool gun
But the sprinkler is working without the spring???what??
Ive never seen one seal without the spring before.
What brand is it? It looks like a typical watermaster.
by bigbob12345
Sun Jun 29, 2008 10:39 pm
Forum: Hybrid Cannons
Topic: SpudFarm's mini hybrid (vid)
Replies: 16
Views: 6231

cool little mini.
This has to be one of the smallest hybrids out there
Although if possible I would reccomend that you increase the size of the opening on the burst disk holder. Looks like flow might be a little constricted.
by bigbob12345
Fri Jun 27, 2008 1:46 pm
Forum: Pneumatic Cannons
Topic: WIP Valve design
Replies: 12
Views: 4137

genious design
although you could simplify it by not adding orings or equilzation holes on the 2in part. It would reseal easier and just be easier to make.
by bigbob12345
Fri Jun 27, 2008 11:23 am
Forum: Combustion Cannons
Topic: Three spark gaps
Replies: 12
Views: 3620

It will not jump them if it is an ordinary piezo.
by bigbob12345
Thu Jun 26, 2008 11:19 pm
Forum: General How-To & Discussion
Topic: 4th o Ju-Lyyy
Replies: 54
Views: 9066

Well I dont know the legal system very well, so your probably right. what I described is illegal and agianst the rules so Ill edit it out of my post.
by bigbob12345
Thu Jun 26, 2008 10:41 pm
Forum: General How-To & Discussion
Topic: 4th o Ju-Lyyy
Replies: 54
Views: 9066

or all the discussion of illegal things will continue to be discussed.

The thing is, that this is legal. We are talking about creative uses of legal fireworks. Ill let a mod decide if this is to be continued or to be locked.
by bigbob12345
Thu Jun 26, 2008 9:36 pm
Forum: General How-To & Discussion
Topic: 4th o Ju-Lyyy
Replies: 54
Views: 9066

[Edited out] Against the rules and illegal
by bigbob12345
Wed Jun 25, 2008 9:16 am
Forum: Pneumatic Cannons
Topic: A 'My First Plans' and Hello!
Replies: 9
Views: 1855

QEV:
Image

Blowgun:
Image
Ignore the little things in the blowgun picture
by bigbob12345
Tue Jun 24, 2008 2:32 pm
Forum: Combustion Cannons
Topic: Overkill?
Replies: 37
Views: 6737

Your wasting your money, but if you want to do that then I cant stop you.
And please instead of saying things like "comby", just take the time to type out the full word. Combustion, see it isnt so hard.
It took me like two minutes to figure out what you meant by "comby"