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Posted: Wed Mar 14, 2012 2:48 pm
by jackssmirkingrevenge
D_Hall wrote:I could nit pick... But yeah, you've got the gist of it.
Of course there are more applications, you could simulate runaway turbine blades...

Or make a slightly bigger one :D

[youtube][/youtube]

Posted: Wed Mar 14, 2012 5:51 pm
by Fnord
As I was writing my earlier comment I knew *someone* was going to post that family guy clip:)

So what is the pipe shedule? And what kind of welding have you used? TIG or high pressure stick welding?
I think he mentioned it being around half an inch thick, kinda thin for pipe that size. Probably something right under sch40. A TIG welder? that would have to be a HUGE tig welder.


Also, I would like to propose:
Very Effin' Ridiculous Artillery

Posted: Wed Mar 14, 2012 9:20 pm
by D_Hall
s0ka wrote:So what is the pipe shedule? And what kind of welding have you used? TIG or high pressure stick welding?
Sch 30 pipe.

And I'm not 100% sure about the welding since I didn't do it myself, but I believe it was MIG.

Posted: Thu Mar 15, 2012 12:40 am
by jackssmirkingrevenge
Fnord wrote:Very Effin' Ridiculous Artillery
I would be more partial to "Vagina? Egregiously Risible Alternative!"

Image

:D

Posted: Thu Mar 15, 2012 2:45 pm
by s0ka
Ok thanks, i'm pipefitter and your VERA is a real job!!. If you need a worker i'm here!!!

Mig welding its not the strongest welding but with a fat pipe like that you need to be fast , no need to change your stick.....

:o

Posted: Thu Mar 15, 2012 7:40 pm
by D_Hall
I'll take your word for it.

I just took it to my friendly neighborhood pressure-vessel certified welder and said, "Stick this here pipe to that there fittin' really good!" He provided me with 1" fillets.

Posted: Sat Mar 17, 2012 9:01 am
by caspar97
Fascinating..I loved the air wave out of the barrel before the sabot and projectile in the second shot. What is the range of the orange projectile you were shooting?

Posted: Sat Mar 17, 2012 10:42 am
by D_Hall
Well, we aren't trying for accuracy and that's a damned good thing because the gun isn't very accurate (something about looong barrels sagging under their own weight). So basically we've been shooting at 50 meters.

Posted: Sat Mar 17, 2012 11:43 am
by Technician1002
I did notice the target alignment mark and the impact was not in the same place. :D

Posted: Sat Mar 17, 2012 12:24 pm
by D_Hall
But at least we're consistent. About a foot low and left. I suppose we can start using Kentucky Windage if the trend continues.

Posted: Sat Mar 17, 2012 10:22 pm
by jrrdw
Well to hit your target you have to lick your thumb and touch the front sight and repeat one of the best movie lines ever "Aim small. mis small" then you'll hit the mark! :wink:

Posted: Sat Mar 17, 2012 11:08 pm
by jackssmirkingrevenge
D_Hall wrote:(something about looong barrels sagging under their own weight).
You know what's next ;)

Image

Posted: Sat Mar 17, 2012 11:21 pm
by Skywalker
That is one freaking beautiful video! I'm jaw-dropped. Congratulations on all that hard work paying off! (And hooray for gov't money well spent for a change!)

Posted: Sun Mar 18, 2012 2:37 pm
by D_Hall
jackssmirkingrevenge wrote:
D_Hall wrote:(something about looong barrels sagging under their own weight).
You know what's next ;)
And if you look closely, you'll notice that on the muzzle end of the barrel support structure there is already an anchor point. I hope I don't have to go there, but if I do....


And while I'm posting, some folks have commented that they like the last pic so I've uploaded it.

Image

Posted: Sun Mar 18, 2012 3:21 pm
by dewey-1
That is one beautiful picture with the sunset in the backround!

It makes a decent desktop backround image!