Hello, everyone, I am from China, and I don't speak English, so the following content comes from Machine Flip: In my country, gun control is very strict, but there seems to be no clear definition of incendiary gun, so I decided to make it. I've been in the forum for a long time, and this is my first...

In fact, I have used 12 times of pure oxygen and propane to accelerate a steel ball with a diameter of 10.5mm and a weight of 5g to 575m/s. According to the kinetic energy formula, this steel ball carries 800j of energy, which has far exceeded the kinetic energy of a 9mm pistol, so I think it is pos...

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. ...

I think I'm late. Most of the posts were made 15 years ago. I missed the most active period of the forum. Is there a more active forum now? Or a telegraph group or something?

[quote = hect marr post _ id = 390501 time = 1668124175 user _ id = 18293]nI希望将谈话的重点放在用低压腔打开高压腔的可能性上，这也是您出版物的主题。你解释的用两个相连的腔室增加压强，我很清楚，因为我已经在这里讲过了。为了简单起见，我更喜欢使用一个低压点火室，尽可能小，和一个单向阀校准打开需要。我认为它会工作得很好，你必须做一些测试。8-) n[/quote] Well, actually, my secondary ignition device is almost finished. At present, I am...

I think the fact that this forum is slightly active at all is because it's more or less the only such forum left, at least in the Anglosphere. There is also the Francophone "Patator" forum that used to be very active but it's even more quiet now, there is a post from more than 5 years ago lamenting...

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. ...

Assuming that there are two combustion chambers A and B, the volume of A is twice that of B, and the initial pressure of B is twice that of A, then theoretically, A and B should use the same amount of fuel, so their calorific values should be the same. Then the question comes, which one, A and B, ca...

jackssmirkingrevenge wrote: ↑

Tue Nov 22, 2022 8:34 pm

Have you tried "run as administrator"?

I downloaded a new component and it is now running successfully

Assuming that there are two combustion chambers A and B, the volume of A is twice that of B, and the initial pressure of B is twice that of A, then theoretically, A and B should use the same amount of fuel, so their calorific values should be the same. Then the question comes, which one, A and B, c...

Do you think a self-made epoxy spark plug can work better? I would make something like that: Untitled.jpg Using this sort of fitting: Untitled.jpg Yellow is a plastic cup or similar insulator, glue to the fitting, stick your electrode through then pour marine epoxy. Thank you for your advice. It lo...

Combustion chamber volume: 100cc Barrel diameter: 15mm Barrel length: 100cm Fuel: Liquefied petroleum gas Combustion aid: air with 40% oxygen content Multiple:70× Projectile: 15mm steel ball Bursting disc: 3 circular iron sheets with a thickness of 0.3mm How much energy do you think this blow contai...