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Registered Member #1643
Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
Id rather a answer. I wont have my capacitors until next week. Shipping from florida to michigan, ordered yesterday night. by mail, not USP :(
Also is it a safe idea to take a camera charge circuit, then desolder 4 transformers, and wire them all together? like in parallel to the origional slots on the board. It works so far but guy on youtube said it might overload the circuits..
Registered Member #968
Joined: Fri Aug 24 2007, 04:54PM
Location: Norman, Oklahoma
Posts: 104
This depends on too many variables to give a yes/no. In theory the washers can improve efficiency but in practice you might see a decrease in performance.
Barry has done research on this topic with his Coilgun mkII.
Registered Member #1633
Joined: Tue Aug 12 2008, 04:21AM
Location:
Posts: 45
While adding external Iron can boost efficiency by directing mag field lines towards the projectile, in practice, the Iron washers most ppl use present their own problems by being extremely conductive, thus it acts as a transformer. if you somehow got ahold of iron powder that was insultated (like covered in enamel or some plastic insulation, so the particles cannot conduct with eachother) then the external Iron would work. Otherwise, I dont think it would be worth your time.
Registered Member #690
Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
You don't need external iron. Its just one more variable in a system that already has far too many for the average amateur to deal with. I've seen a lot of extremely efficient, powerful, and all around well-built coilguns (both on 4hv and the 'net), and none will have external iron.
And about the charging circuits: yes you can parallel the circuits, but probably not the transformers. It would probably be easier to build a boost converter (search the forums for this one).
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Coilgun coil question - Want the TRUTH
