A Little Help in an Ejecter Seat Project
The Electricuted, Sat Mar 25 2006, 09:46PMHey ,
I want 2 make an ejecter seat project using the coil gun
the SCR parts in this circuit werent found at all
could u recommend any spare parts that could do the job well ?
Further more , could a simpler circuit do the job as well with a toy car and a toy seat ?
Any suggestions and help would be appriciated
[Edit: Fixed oversize picture]
Re: A Little Help in an Ejecter Seat Project
..., Sat Mar 25 2006, 11:56PM
Do you need 3 stages?
You can eliminate almost all of the circuitry if you only need one...
For the scr, just about any mid sized one will work :)
btw, you might want to show your source before a mod deletes the post.
..., Sat Mar 25 2006, 11:56PM
Do you need 3 stages?
You can eliminate almost all of the circuitry if you only need one...
For the scr, just about any mid sized one will work :)
btw, you might want to show your source before a mod deletes the post.
Re: A Little Help in an Ejecter Seat Project
Maz, Sun Mar 26 2006, 12:25AM
i say go with an induction design, then you dont hae to fillle around with all the mechanical stuff pluss it would be shorter to make.
just get a photoflash charging circuit, make it smaller if you want. then use it to charge caps(that you took off the board) and use those to propel your seat. no real circuit needed, and only one stage.
Maz, Sun Mar 26 2006, 12:25AM
i say go with an induction design, then you dont hae to fillle around with all the mechanical stuff pluss it would be shorter to make.
just get a photoflash charging circuit, make it smaller if you want. then use it to charge caps(that you took off the board) and use those to propel your seat. no real circuit needed, and only one stage.
Re: A Little Help in an Ejecter Seat Project
Steve Conner, Sun Mar 26 2006, 12:45AM
I think Maz is sort of right. Reluctance coilguns (the ordinary kind) fire the projectile by sucking it into the coil and then quickly turning the magnetic field off, so letting it shoot out the other side. It might be tricky to mate that to an ejector seat. An induction gun always repels the projectile.
By the way, you posted an oversized image sponged from someone else's site without crediting it. And spelt "electrocuted" wrong. Beware the clue stick!
Steve Conner, Sun Mar 26 2006, 12:45AM
I think Maz is sort of right. Reluctance coilguns (the ordinary kind) fire the projectile by sucking it into the coil and then quickly turning the magnetic field off, so letting it shoot out the other side. It might be tricky to mate that to an ejector seat. An induction gun always repels the projectile.
By the way, you posted an oversized image sponged from someone else's site without crediting it. And spelt "electrocuted" wrong. Beware the clue stick!
Re: A Little Help in an Ejecter Seat Project
The Electricuted, Sun Mar 26 2006, 10:04AM
hey , if i didnt have a charging circuit , how can i design one and how would i connect it to the capacitors and the coil ?
The Electricuted, Sun Mar 26 2006, 10:04AM
hey , if i didnt have a charging circuit , how can i design one and how would i connect it to the capacitors and the coil ?
Re: A Little Help in an Ejecter Seat Project
ragnar, Sun Mar 26 2006, 07:40PM
Bzzzt! Cluesticked again, buddy. =P
Have you thought about a small boost converter with a 555/TL494 and an SCR?
ragnar, Sun Mar 26 2006, 07:40PM
Bzzzt! Cluesticked again, buddy. =P
Have you thought about a small boost converter with a 555/TL494 and an SCR?
Re: A Little Help in an Ejecter Seat Project
Madgyver, Sun Mar 26 2006, 08:43PM
Wait a second. You want to build an ejector seat?
Sounds neat. Though I think a radio controlled relay, releasing a spring could do the job better.
Madgyver, Sun Mar 26 2006, 08:43PM
Wait a second. You want to build an ejector seat?
Sounds neat. Though I think a radio controlled relay, releasing a spring could do the job better.
Re: A Little Help in an Ejecter Seat Project
The Electricuted, Sun Mar 26 2006, 08:58PM
for an air craft , the spring wont be a good idea
The Electricuted, Sun Mar 26 2006, 08:58PM
for an air craft , the spring wont be a good idea
Re: A Little Help in an Ejecter Seat Project
Madgyver, Sun Mar 26 2006, 09:03PM
Well what kind of aircraft? How strong do you guess should it be? Cause I doubt, that you could build a small lightweight coilgun which can deliver a greater punch then a spring of same wheight and size.
Madgyver, Sun Mar 26 2006, 09:03PM
Well what kind of aircraft? How strong do you guess should it be? Cause I doubt, that you could build a small lightweight coilgun which can deliver a greater punch then a spring of same wheight and size.
Re: A Little Help in an Ejecter Seat Project
Coyote Wilde, Sun Mar 26 2006, 09:41PM
Wait... do you mean an actual ejector seat?
As in, for use with a human being or yourself?
Any kind of electromagnetic launcher isn't going to work... spring loading neither. They use rockets on military seats for a reason... but this avenue of research is only going to get yourself killed.
If you mean for a model aircraft... then I agree with Madgyver, a spring is probably going to work out better for you., if only by the KISS principle.
Coyote Wilde, Sun Mar 26 2006, 09:41PM
Wait... do you mean an actual ejector seat?
As in, for use with a human being or yourself?
Any kind of electromagnetic launcher isn't going to work... spring loading neither. They use rockets on military seats for a reason... but this avenue of research is only going to get yourself killed.
If you mean for a model aircraft... then I agree with Madgyver, a spring is probably going to work out better for you., if only by the KISS principle.
Re: A Little Help in an Ejecter Seat Project
Madgyver, Sun Mar 26 2006, 09:56PM
Well I am notsure, he just said ejector seat, and then something about toy car seat. If it's not for a toy, but for a real human, then I think forget it. There is no practical way to do this with a CG.
Madgyver, Sun Mar 26 2006, 09:56PM
Well I am notsure, he just said ejector seat, and then something about toy car seat. If it's not for a toy, but for a real human, then I think forget it. There is no practical way to do this with a CG.
Print this page