MV CoilMaster Mark1 coilgun – Featured on Hacked Gadgets | Richard ...

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After some experimenting at school we made a successful working coilgun with speeds up to 85 km/h, now this project is to make it more compact so you will be able to carry it around. Also more power and more speed!

The nozzle velocity is still very slow compared to a paintball marker or any other rifle, but the weight of the bullet makes sure it will still give quite a punch. (A paintball @ 300fps still only packs 15Joule)

It’s still a hobby project and not perfected in any other way than the looks:)

specs:

Fully semi-automatic, up to 14 shots. @quadstrike

Agree in the video above. But I’m referencing from his comment ~3 months ago. He said the projectiles were traveling 110.2 fps [or ~30.6 m/s]

So, it seems 20+ stages should be able to accelerate it to propellant powered rifle velocities. And considering his projectiles are about 4 times heavier than as .300mag rifle round :-S

Curious what velocity increase, if any, a projectile four time lighter would be.

I have an idea for for your myth busting buddy… a gas powered rifle. USe CO2 (liquidfied) but fed into a discharge chamber that will drive a projectile when released… but instead of relying on room temperature to expand the gas…preheat the compressed CO2 with inductive heating coils. The energy stored could – I think – easily surpass the kinetic energy discharged by a standard propellant of a normal bullet.

Bust it or Confirm it

Do you have the current timed or calcualted to cut off when the projectiles center of mass reaches/passes the at or near the center point of the magnetic coil?

If your stage is only the length of the projectile, then you could put in many series of coil stages. If you’re using one stage and reaching 100fps. Then only 20 stages – it seems – would be needeed to achieve a normal rifle velocity. Though, as the projectile accelerates, I think you’d have to tweak timing circuits.

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