This phrase was frequently uttered by a professor at the orchestral instrumentation university, when we did not do the work. He was referring to art, saying that musical art is a very large field of knowledge and that the life of a human being is not enough to cover it. I took it as a premise for al...

A video of test firing of this weapon, grayed out now. I'm shooting with 18g pellets attached to rupture discs, in this case two, for 9X. With three discs, the power is higher, but I have to increase the pressure to 10-11X because otherwise there are times when the disc does not break. Other than th...

Very good contribution the patent of this system. I couldn't find anything, myself, regarding this. Thank you very much for sharing I have a 3D printer but it's not mine, it's my friend's. He is doing the CAD drawings of this gun. I've been asked to build 5 or 6 guns just like this one by hobbyists ...

There are a lot of people, hobbyists, who make their own stuff, from homemade PCP guns, to combustion springs, hybrids, and god knows how many more. It seems that only the scenario has changed, the forums for social networks. The hand above "I like it" is sometimes the only "affective" retribution o...

It's not water, but if I pass a cotton ball through the inside of the barrel, it comes out quite wet. Putting some water in a sound suppressor to enhance the effect is a well-known trick for firearms, the fluid helps to cool the hot gasses and thus lowers the pressure. I would not be surprised if i...

Excellent, that's a lot of cans perforated! It's because it has more pressure... and therefore more fuel. Transfers 4 full cans safely, and at 11X, 5 1/2, from a short distance, about 6 meters. At 20 meters, it goes through 3 cans cleanly. I have not tried further, because it is very difficult to h...

jrrdw wrote: ↑

Fri Oct 21, 2022 7:45 am

" It is a very personal opinion, which has no intention of being generally true."

oh yes, wielding the subjectivity of opinions and "analysis" is the first thing, especially when you think from the other side of the fucking planet! Cheers

perhaps going down the path of COOPERATION and not COMPETITION is more profitable. A simple project or a series of projects and not so much is the way to encourage participation. I mean, do it together. A chimera? perhaps, but surely it is trying to give it shape and viability.

I am sure that what you propose will work well, it is an interesting solution. it must only be ensured that the intermediate rupture disc is destroyed at a pressure greater than the mixture pressure in the higher pressure combustion chamber. The practical limit is when the low pressure chamber needs...

I hope it is something simple the problem of your machine. Surely it is so.

I hope it is something simple the problem of your machine. Surely it is so.

That sounds like it would work, but what sort of mix numbers are you thinking about? I was able to ignite mixes up to 16x using a simple piezo from a cigarette lighter, and about 28x (the highest you can go using just compressed air and not oxygen) with a high voltage stove ingitor . It seems like ...

Why can't a compressed air-propane mixture burn at more than 28X? I didn't know this, and I don't understand why... It will burn at much higher mixes but if you are fueling with the propane at atmospheric pressure, then 28x is the highest mix you can achieve. If in a closed chamber I manage to intr...

I would like to focus the conversation on the possibility of turning on a high pressure chamber with a lower pressure one, which is the subject of your publication. what you explain about increasing the pressure with two connected chambers, I know well, because I have already talked about it here. ...

You can use my mother-in-law as a target... JOKE! What I'm dying to know is if the whole concept will work well. In my opinion YES! she will do it.