Homemade Gauss Gun
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This gauss gun is powered by a 660v, 670μf capacitor bank. The capacitor bank consists of 22 capacitors that came from disposable cameras. The coil was made from 14gage wire, 102 turns total, 6 layers, and 17 turns on each layer. I calculated the inductance of the coil to be about 196µH. I cut a piece of nail for the projectile and the barrel is a straw. The projectile weighs 4.18g and is 3cm long. There is 1mm between the inside of the coil and the outside of the projectile. I used 6 diodes (three parallel sets of two diodes in series, total surge rating of 1000v, 900amps) in anti-parallel with the capacitor bank, to protect the capacitors from reverse charging. During the firings, I killed four diodes and welded open two switches. The switch that I am using now welds shut every now and then, but because of the switch design, you can break the weld by forcing the switch into the off position. I calculated the velocity of the projectile to be about 25m/sec. To do this, I shot the gauss gun at a piece of cardboard 5.5m away. Using the hole in the cardboard, I calculated the drop of the projectile, and then the velocity. The gun will make holes in soda cans. One of my friends wanted me to shoot the gauss gun at him to see what it would do. I decided it would be better to shoot it at a thawed chicken instead (:
Channel: Science & Technology
Uploaded: December 31, 1969 at 5:59 pm
Author: cMasterCreations
Length: 00:39
Rating: 4.75
Views: 2289
Tags: capacitors coil cool current diodes diy electromagnetic gauss gun high homemade launcher powerful real voltage wire
Video Comments
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carbednotch (December 31, 1969 at 5:59 pm)
need to make the bullet shorter
gonepishing (December 31, 1969 at 5:59 pm)
same; there are very specific ways to make a coilgun with the most powermy coilgun was built according to plans for both the capacitance and the coilsize
cMasterCreations (December 31, 1969 at 5:59 pm)
Sorry I didn't get back to you earlier.There could be several things effecting the preformance of your gun. It could be underpowered, the projectile could be too heavy (I believe a projectile without threads would work better), the coil might not have enough inductance (online I found the best coilguns had many turns of wire)...Even with my coilgun, I could probably tune it better and get a greater preformance.
gonepishing (December 31, 1969 at 5:59 pm)
I posted a video of my two most reecent coilguns. it has a rather small 330V 640 μf bank, is this under powered? the projectile is 15 grams, a tad heavy, that may be the peoblem with penetration
09106073576 (December 31, 1969 at 5:59 pm)
lol.4 stars!!keep rockin'!!
09106073576 (December 31, 1969 at 5:59 pm)
lol!the chicken is pawned!!!
MVPsnow (December 31, 1969 at 5:59 pm)
thanks! i have been trying to get my coilgun stronger but i wastn sure what i was doing wrong with the capacitors
cMasterCreations (December 31, 1969 at 5:59 pm)
I used two banks of eleven capacitors in parrallel (330v, 1340μf each bank). The two banks are in series (660v, 670μf total).
MVPsnow (December 31, 1969 at 5:59 pm)
or*. ment to say or, not of
MVPsnow (December 31, 1969 at 5:59 pm)
hey did you connect all of the capacitors in parallel of some parallel and others in series? |