 Coilgun Rifle finished
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Simon
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Registered Member #32
Joined: Sat Feb 04 2006, 08:58AM
Location: Australia
Posts: 549
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Since we're on the topic, how repeatable is it? Coilguns are famous for being hypersensitive to initial conditions. If you launched three projectiles in succession with this thing, would they land roughly in the same spot?
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TheMerovingian
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Registered Member #14
Joined: Thu Feb 02 2006, 01:04PM
Location: Prato/italy
Posts: 383
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THe repeteability is very good, (in the 5% range) Since the starting position is fixed and the voltage is in controlled in the 1% range. 5% is very good taking into account that the initial error amplifies in the later stages
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Effilcdar
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Registered Member #655
Joined: Wed Apr 18 2007, 10:23AM
Location:
Posts: 14
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What kind of caps are those and where did you get them.
I just made a ~200j coil gun (if I could get my charging circuit to work right) and the caps were the size of large beer cans to get 350v 3400 micro farads. Yours just seem to be much more compact for a similar power.
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TheMerovingian
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Registered Member #14
Joined: Thu Feb 02 2006, 01:04PM
Location: Prato/italy
Posts: 383
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Used 20 rubycon snap-terminal 180uF 350V low-esr capacitors soldered to a copper bussbar.
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