coilgun coil with 2 wires to decrease resistance?

after i finished my coilgun. i found that my coil which has a resistance of 3 ohms is not efficient enough for my 1920uf cap bank at 310v.
i've read that high resistance coils need high voltages and low capacitance from the capacitor banks. and that low resistance can use both high voltages and high bigger capacitor banks to increase the current and drain the capacitor more quickly  so that the projectile will not be sucked back.

so i am wondering if i can wound a coil that has 2 wires to decrease resistance,

 the current one is about 30mm in length and have 12 layers of 1.024mm of enamel coated wire.
it is just that i don't have bigger wire which has a lower resistance.

and i also did not solved my switching problem. i already damaged 3 heavy duty water heater switches

here is the picture 

Picture of coilgun coil with 2 wires to decrease resistance?
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What diodes are you using ?
What inductance are you driving ?

ARJOON (author)  steveastrouk6 years ago
diodes are 1n0007 and for inductance idk. i really need to buy the multimeter
Are you sure the diodes are OK ?
What's the barrel made of ? If its a plastic, and we can say its aircored, you can work out the inductance, and calculate the stored energy.

ARJOON (author)  steveastrouk6 years ago
the diodes are alright that is why i've put them in parallel. the barrell is made of plastic. what about using 2 wires to make another coil?
You damaged the switches with the impedance its already got. Things aren't going to get better ! I'd look seriously at finding a very heavy thyristor, and some way of turning it on FAST.

Did you add the limiting resistor for charging ?

ARJOON (author)  steveastrouk6 years ago
homopolar generators is for rich guys. ok. i'll post them tomorrow. shcool starts 11th january so sad
MAKE one !
ARJOON (author)  steveastrouk6 years ago
updated my question see the schematicc
perhaps a giant copper/aluminium spring loaded block switch? (like thegeekgroup on youtube uses to fire their giant bank to explode pop cans)

As for doubling up the wire, that should lower the resistance, but as steve says, will change other variables in the circuit...
ARJOON (author)  frollard6 years ago
yeah i saw it but i would rather like a more portable version
ARJOON (author)  steveastrouk6 years ago
yeah finally. a 100w bulb did the work
yeah the impediance. i should have added a couple of fast diode

what about winding the coil with two wires
Tell you what, post a PROPER circuit diagram for what you are trying to do, and lets see what we can come up with. Real guns look to me like they are powered directly from homopolar generators, these are HIGH current generators whcih have BIG flywheels on them. When the current is switched on, the generator slows down. I believe these can deliver high, fast currents.