How to Make a RAILGUN!
Intro: How to Make a RAILGUN!
Warning: if you screw up with this you could electricute yourself.
STEP 1: Materials
For this you will need;
4 or 5 Disposable flash cameras (I went to a camera store and asked them for some and they took a big box with about a hundred in it, they sold them to me at ten cents a camera, I only got ten)
aluminum foil
plexiglass
wire
small switch
big switch
aluminum or steel rails
6 nuts and bolts
wire hanger
tools;
screwdriver
soldering iron
duct tape
wire strippers
wire cutters
4 or 5 Disposable flash cameras (I went to a camera store and asked them for some and they took a big box with about a hundred in it, they sold them to me at ten cents a camera, I only got ten)
aluminum foil
plexiglass
wire
small switch
big switch
aluminum or steel rails
6 nuts and bolts
wire hanger
tools;
screwdriver
soldering iron
duct tape
wire strippers
wire cutters
STEP 2: Prepare the Cameras
break open the casing on 4 or 5 cameras
take out the circuit board
take out the capacitors from all but one of them (you might want to take out the flashbulbs too they look cool when you put several thousand volts through them)
remove the swich thing and solder two wires in its place
take out the circuit board
take out the capacitors from all but one of them (you might want to take out the flashbulbs too they look cool when you put several thousand volts through them)
remove the swich thing and solder two wires in its place
STEP 3: The Circuit
solder the small switch to the two wires you made in the last step
solder the extra capacitors onto the current on (remember to keep the positive and negative sides together)
solder two long wires to the capacitors
solder the big switch onto the positive wire
solder the extra capacitors onto the current on (remember to keep the positive and negative sides together)
solder two long wires to the capacitors
solder the big switch onto the positive wire
STEP 4: The Rails
make two aluminum or steel rails about 1/2in by 5in (make sure one long side of each rail is perfectly straight)
cut two pices of plexiglass about 1.5in by 4.5in
make a small gap between the rails that is perfectly straight (I used a wire hanger as a divider)
sandwitch it beween the two pieces of plexiglass and clamp it
drill six holes for the bolts
put the bolts in and screw the nuts on tight
cut two pices of plexiglass about 1.5in by 4.5in
make a small gap between the rails that is perfectly straight (I used a wire hanger as a divider)
sandwitch it beween the two pieces of plexiglass and clamp it
drill six holes for the bolts
put the bolts in and screw the nuts on tight
STEP 5: Set It Up
clip the positive wire on to the right rail and the negative wire on to the left rail with alligator clips
ball up a small piece of aluminum foil and jam it into the middle of the rails
put a battery into the battery thing
ball up a small piece of aluminum foil and jam it into the middle of the rails
put a battery into the battery thing
STEP 6: Fire!
press the small button to charge up the capacitor bank
when the led blinks you can press the big button and fire it
after you're done use a srewdriver to trigger the capacitors a few times before touching it
when the led blinks you can press the big button and fire it
after you're done use a srewdriver to trigger the capacitors a few times before touching it
428 Comments
RiccardoG16 6 years ago
glemau 5 years ago
Any conductive Material should work
glemau 5 years ago
So before buying anything: Many people in the comments had the problem of the projectile just melting. Now do you need a initial "push" fur the projectile or does it just go on its own? As far as I understand physics the projectile should be pushed into any direction right?
Dragonite123 6 years ago
Can you make this more powerful?
matt85340 6 years ago
This is a cool article and I intend to try this with my kids. Please keep up this good work!!! The engineering presented is pretty cool and clever. I have a PhD in experimental physics and have taught physics at the college level. I currently work for a medical equipment manufacturing company and also run a consulting firm that operates in the bioengineering/physics arena. I feel somewhat qualified to comment. Some of the physics, conversions, and calculations in the comments below are erroneous and wrong. Even some that are correct, are out of context and not applicable to the discussion at hand. Quantities such as mass, energy, power, charge, current, etc. are not in general equitable and when they are equitable, it is only under very specific circumstances.
jj.inc 13 years ago
cex 12 years ago
To release sparks, a railgun doesn't have to be THAT powerful, but it still requires a fairly large amount of energy. In short, THIS railgun can't be used to kill people or do any heavy damage.
jj.inc 12 years ago
swagner4 12 years ago
jj.inc 12 years ago
I just found all of this information,
Watt x Time = Joules This is 8948 time 3600 secconds = 32,212,800 joules which is a pretty good conversion for the one minute I put in.
Power x Time = Work (energy)
Joules/distance = Newtons
Work/distance = Force
So you can convert power to energy, its just a little more complicated than most conversions.
swagner4 12 years ago
But charging and equations are not linear which you are assuming. By your logic you can convert Joules into cubic meters
jj.inc 12 years ago
Joules are a measure of energy (energy is defined as the ability to do work)
Work is power * time and is measured as an SI unit of joules
Power is the rate at which work is performed or energy is converted
Time is, well you know what time is
By looking closely at these properties you can conclude that power over time is work or hp over one hour is joules
When I use the word over I don't refer to a fraction or division problem I refer to something occurring over a period of time.
06sandj 11 years ago
jj.inc 11 years ago
Ha ha, I was just doing some math and you are just a failure. 33 gigajoules is 3,000,000,000 joules. That number is one 0 short of your number (typo probably). Also sure you may get 4.5 million hp (DON'T QUOTE ME I AM USING YOUR DATA AND IT IS TOO LATE AT NIGHT FOR ME TO CHECK IT), but you only get 4.5 million hp for 0.01 seconds. If you calculate that out which I can't think of how to do at this time you will only have a few horsepower over the course of a short time.
-to everyone other than 06sandj Please disregard this post as the information is useless and just a poorly compile explanation of the massive fail seen above.
06sandj 11 years ago
jj.inc 11 years ago
06sandj 11 years ago
bladewind_demon 11 years ago
jj.inc 11 years ago
bladewind_demon 11 years ago