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SpudFiles Forum Index » Non-Spudgun Related Discussion » coil guns

coil guns

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milty

Posted: 08/05/2005 20:41 PM Post subject: coil guns

Private

Joined: 03 May 2005
Posts: 22
0.13 Spud Bux

has anyone ever bult a coil/rail gun before, and if so do you have any pointers for one made out of a camera flash??? how do i get multiple flashes to fire sequncially??

boilingleadbath

Posted: 08/05/2005 21:31 PM Post subject:

Moderator
<b>Moderator</b>

Joined: 12 Mar 2005
Posts: 1647
5491.22 Spud Bux

I have not made one.
You could use photogate activated transistors... I don't know.

milty

Posted: 08/06/2005 17:49 PM Post subject:

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Joined: 03 May 2005
Posts: 22
0.13 Spud Bux

what's a

Quote:

photogate activated transistor

saladtossser

Posted: 08/06/2005 19:45 PM Post subject:

SpudZilla

Joined: 26 Mar 2005
Posts: 1237
98.19 Spud Bux

or a contact sensor, easier. the projectile goes half way into the coil, then it trips the sensor and the coil turns off so the projectile will keep going instead of staying in the coil

Darkerweb12

Posted: 08/22/2005 23:32 PM Post subject:

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Joined: 20 Aug 2005
Posts: 105
238.36 Spud Bux

A 'photogate' sensor is an Infrared Emitter and Detector Lined up on the sides of the barrel, right after the main coil. Once the projectile has made it through most of the coil, it blocks the Infrared Light from being detected, thus cutting the circut. Once this has happened, the projectile maintains its forward velocity without it being impeded by the magnetic field drawing it back in. Now the projectile is free to continue out of the barrel or into another coil/ IR sensor in a two-stage setup...

CaptPIKel

Posted: 09/06/2005 17:14 PM Post subject:

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Joined: 06 Sep 2005
Posts: 8
0.57 Spud Bux

Have the projectile be a switch. It would then double as a railgun. Just make sure the projectile switches the coils pretty far back.

feral_patriot

Posted: 04/15/2006 1:39 AM Post subject:

Corporal

Joined: 01 Apr 2006
Posts: 66
262.98 Spud Bux

Darkerweb12 : '... maintains its forward velocity without it being impeded by the magnetic field drawing it back in ...' .
I know that there has been some fantastic advances in various fields of bio-engineering,but when did they make potato's magnetic? Shocked

Shrimphead

Posted: 04/15/2006 8:44 AM Post subject:

Colonel

Joined: 17 Nov 2005
Posts: 514
667.65 Spud Bux

Looking back, nobody mentioned it being a potato. Maybe we should make it clear what kind of ammo he is thinking of using.

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