Definitely, heat is already a problem in the semi-automatic version, especially in summer, with 38 or 40ºC ...jackssmirkingrevenge wrote: ↑Tue Feb 09, 2021 6:05 amHoly... eres un fenomeno Hector! I really like the electro-mechanical control Very promising!
Honestly, I do not think this is as dangerous as it sounds, as long as you have a system of check valves that would prevent any back flow. I do however understand that psychologically one would want to avoid it.Too bad not being able to use a tank with the mixture formed, because in this way it would be firing automatically in two days, but it is not an option due to the serious danger it involves.
You definitely will need cooling for the combustion chamber, that thing is going to heat up quickly. Maybe some aluminum extrusions intended as heat sinks for electronic components...
As to feeding the ammunition, you already have plenty of experience in this department.
There is energy to spare to make a direct blowback mechanism, or if you're feeling fancy now that there is electronic control, use a solenoid or stepper motor to control it...
here it is: viewtopic.php?f=26&t=26309
If the device fires more quickly, it will be a bigger problem, which makes it impossible to use epoxy resin, because as you know, it softens with heat. Very good grip on the aluminum heatsink, I hope that's enough, but only practice will tell.
Thanks for the link to Yasu's posts, couldn't find them.
Regarding the bbs charging system powered by the combustion gases themselves, I have built and tested the system. The good thing is that everything is simplified because there is no pneumatic actuator, but regulation is difficult for me. I must say that this system works very well, and I do not rule it out if the moment comes, I can explode at this hectic pace, a hybrid.
The current semi-automatic system is controlled by the same solenoid valve, which lets only a little compressed air pass to the pneumatic cylinder that operates the bolt. The advantage is that it has a lot of strength and speed and the disadvantage that it consumes a little more air ...