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Posted: Tue May 15, 2012 1:09 pm
by Petitlu
Hacker!
I'm going to get real!
nice modeling
Posted: Tue May 15, 2012 1:32 pm
by jackssmirkingrevenge
Petitlu wrote:Hacker!
Yeah, amazing hacking skills!
"Can you send me the 3D file in a convenient format?"
"Sure!"
Petitlu wrote:simulation with bullet 40g
That thing at mach 1 is going to be pretty devastating...
Posted: Wed May 16, 2012 11:44 am
by Petitlu
Photo !
Posted: Wed May 16, 2012 11:54 am
by DYI
It may be mentioned somewhere in the vast expanses of this thread, but what are you using as a sealing face for the burst discs, and how well does it withstand repeated firings?
Posted: Wed May 16, 2012 12:05 pm
by Petitlu
have you seen this picture ?
I put a flat seal, it does not burn ...
the bearing surface of the seal is a large piece of brass from a connection for the PER
Posted: Wed May 16, 2012 1:31 pm
by DYI
Do you mean to say that the sealing face is brass? It must be quite finely machined then, and the disc would need a very smooth surface.
Posted: Wed May 16, 2012 2:05 pm
by Petitlu
the surface is made of brass, I put on this surface rupture disc and a steel flat seal rubber made of 20x27mm on this disc.
Posted: Thu May 17, 2012 3:28 am
by jackssmirkingrevenge
Nice family photo
I will try and post you the projectile soon, if not tomorrow I will do it on Monday.
Since I'm probably going to get started on the "long range" projectiles soon, can you confirm that the barrel inner diameter will be 33mm?
Posted: Thu May 17, 2012 3:51 am
by Petitlu
I look forward to keep it in hand!
I can easily have 30mm copper tube inside the 33mm I have to order it online ...
Length it is necessary?
Posted: Thu May 17, 2012 3:57 am
by jackssmirkingrevenge
30mm is good as well - shall we go with that?
Posted: Thu May 17, 2012 4:16 am
by Petitlu
30mm excellent!
I can have this afternoon! 1m, 2m ....
Posted: Thu May 17, 2012 4:24 am
by jackssmirkingrevenge
1 metre is more than enough
I'll see if I can get started on the first projectile tonight, it will probably look like a bit of a Ryanair
mini-boy
Posted: Thu May 17, 2012 4:48 am
by Petitlu
Mini boy !!!
you have a diagram of the missile with final dimensions?
Posted: Thu May 17, 2012 1:52 pm
by Petitlu
Posted: Thu May 17, 2012 2:47 pm
by jackssmirkingrevenge
Petitlu wrote:you have a diagram of the missile with final dimensions?
Not yet, all in my head at the moment.
Nice camera setup by the way hehe! hope the recoil won't damage it.
