Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 87 users online :: 5 registered, 0 hidden and 82 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

mistakes in spud gunning

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Unread postAuthor: Brian the brain » Sat May 01, 2010 2:25 am

Ouch my tooth..still hurts after almost two years..
CHeckvalve failed in a HP pump...handle hit me in the face, wich probably broke my upper jaw just under my nose...The gums where stripped off my front teeth and I could move the entire front part ( a little)
But after eating pudding ( literally) for three weeks the problem fixed itself.
I only have one wobbly tooth now.

I have a scar on my upper lip/cheek from it.

Furthermore...I fired a PVC cannon with ice ammo...wich resulted in two split open fingers and a bad black and blue bruise on my leg.

Those where the worst.
I too have a lot of failed designs..from leaky pistons to full auto attempts wich just kept hissing...

It is inevitable to fail when you are this active for this long.
Just like JSR... :D
  • 0

Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: jackssmirkingrevenge » Sat May 01, 2010 3:25 am

Brian the brain wrote:It is inevitable to fail when you are this active for this long.
Just like JSR... :D


So true, the only way to never fail is to not never build anything.

Just remembered another one, this thing recoiled so hard it snapped the ignitor against my finger :roll: :?
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: MrCrowley » Sat May 01, 2010 3:36 am

So true, the only way to never fail is to not never build anything.

Or to never post it :wink:
Though it is better to post it online as an experiment or test than not at all. I've noticed you cover your back by using the word "prototype". :D
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: MikeNice » Sat May 01, 2010 4:27 am

On my very first cannon I thought I was going to be cool and go big. I did a 24" x 4" chamber with 60" x 2" barrel over / under. It had just 1 ignition gap almost all the way back to the cleanout. It was a night mare trying to get that one fueled right. It truly was a spray and pray. I think in it's original configuration it fired 4 or 5 times. The last time it almost shot I had a slow burn in the chamber which fused the cap to the cleanout. I was such a noob at that point I was still worried about where I used it so a friend and I went WAAAAAAAAAAAAAAAAAAAYYYYYYY out into the desert to shoot it. 15 minutes later we had to drive WAAAAAAAAAAAAAAAAAAAYYYYYYY back into town with a gun that didn't shoot. Now I use 18" chambers, 2 spark gaps, a chamber fan (on the next gun) and I shoot just about where ever I want. (rural Arizona)

One quick side note since I'm here . . . don't cut open glow sticks and dump the contents down a PVC spudgun barrel. The non-toxic chemicals make the PVC soft for a while then really brittle. The glowing green cloud was cool but not at the cost of my spud gun.
  • 0

Your face is going to freeze like that. http://iplaaz.freehostia.com/
User avatar
MikeNice
Staff Sergeant
Staff Sergeant
 
Posts: 115
Joined: Tue Nov 28, 2006 4:37 pm
Location: Queen Creek, AZ
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sat May 01, 2010 4:45 am

MrCrowley wrote:I've noticed you cover your back by using the word "prototype". :D


It's not small print, if it's a one-off experiment then it is a prototype. I could say "technology demonstrator" but then people would probably expect a higher level of workmanship :roll: :wink:
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: D_Hall » Sat May 01, 2010 12:09 pm

Not sure if this counts as a fail or just a really bad idea....


Have ya'll seen the foam projectiles fired from the Eclipse? Well, I was one of the two guys who did the original design work on it. Since it was designed for paintball, it *HAD* to be safe to shoot at a person. Mind you, "safe" is a relative term. It didn't mean that it had to be fun, but it couldn't send a person to the hospital, ya know?

So to prove that it was safe, I had my wife shoot me with one at point blank range.

Ummm....

That hurt.

Left a bruise about the size of a softball.

But hey, no hospitals. It passed the test!


(Other than that, I've got nuthin'... I over engineer everything and as a result I've never had a part fail or anything like that.)
  • 0

Last edited by D_Hall on Sat May 01, 2010 12:41 pm, edited 1 time in total.
Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: Gun Freak » Sat May 01, 2010 12:10 pm

Why point blank? That's a dumb thing to do :roll:
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Sponsored

Sponsor
 


Unread postAuthor: D_Hall » Sat May 01, 2010 12:34 pm

Gun Freak wrote:Why point blank? That's a dumb thing to do :roll:

Because that's worst case scenario. If you can't do that, it's not safe. Keep in mind, at the time the idea was that we were going to mass market these things(*). Sooner or later some kid was going to shoot himself with one. If you don't want a lawsuit... That kid had better not get hurt too badly.



(*) Turned out that the insurance costs were more than production costs. Made it a no-go.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: mark.f » Sat May 01, 2010 1:36 pm

Well, last night my wrist shorted out a 370 2.2uF capacitor... that hurt a good bit.

Other than that the only things I can think of have mostly been kind of expected... like when the fan and cap blew off of my JIF gun and broke against the wall...

I think I shot the ceiling in my room once with a piece of chocolate because the blowgun on my cannon bumped something.

My friend's first combustion came unglued and hit him in the shoulder with about a 2 lb. piece of PVC. He didn't use primer and painted his pipe before gluing, IIRC.

Not much else. I try to be safe.
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: jackssmirkingrevenge » Sat May 01, 2010 1:36 pm

D_Hall wrote:I had my wife shoot me with one at point blank range.


... which begs the question, how much encouragement did she require :D
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: MikeNice » Sat May 01, 2010 1:37 pm

Have ya'll seen the foam projectiles fired from the Eclipse?
I'm not familiar, sounds funny though. And really anything self inflicted that leaves a softball sized bruise without a trip to the hospital or morgue has GOT to be somewhat amusing. :)
  • 0

Your face is going to freeze like that. http://iplaaz.freehostia.com/
User avatar
MikeNice
Staff Sergeant
Staff Sergeant
 
Posts: 115
Joined: Tue Nov 28, 2006 4:37 pm
Location: Queen Creek, AZ
Reputation: 0

Unread postAuthor: D_Hall » Sat May 01, 2010 5:01 pm

MikeNice wrote:
Have ya'll seen the foam projectiles fired from the Eclipse?
I'm not familiar, sounds funny though.

A quick google for "40 mm eclipse paintball gun" yields the following pic....

Image

I got hit with the very first one of those at 200 fps.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: Techie » Sat May 01, 2010 6:59 pm

Lockednloaded wrote:on my first pneumatic i put teflon tape in between some of the non-threaded joints :lol: needless to say it never made it over 10 psi. that was 3 years ago

I prefer electrical tape :D

Chambers and barrels tend to fly when you do that :(
  • 0

[Techie] 12:04 am: heck why dont i just light a fire under random cars
[Techie] 12:04 am: that aughta be fun while it lasts
[mark.f] 12:06 am: Just give us the ignition coils before you do.
User avatar
Techie
Specialist
Specialist
 
Posts: 54
Joined: Sun Nov 15, 2009 7:46 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Mon May 03, 2010 2:56 am

Ooh ooh I just remembered another one :D

[youtube]http://youtube.com/watch?v=C9SKCLUPnaA[/youtube]

And as if to hammer home the point that one gets used to these "mistakes", the comment was:

Very good self control Jack...not one four letter word on the clip, I'm pretty certain there would be (at least one) if it was mine.


:roll: :D
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: theBOOM » Mon May 03, 2010 3:00 am

LMAO jack that's funny, did it hurt?
  • 0

User avatar
theBOOM
Major
Major
 
Posts: 374
Joined: Wed Jun 03, 2009 10:49 pm
Location: San Antonio, TX
Reputation: 0

PreviousNext

Return to General Spud Cannon Related

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'