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Registered Member #1800
Joined: Thu Nov 06 2008, 11:23PM
Location:
Posts: 7
Hi all, i need to do this for a school project and think this is the place where I can find some help, so here it goes. Look at the attached file, thats how my project is today, I`m pretty sure I have to attache a diode or something somewhere in the way to the coil, but i dont know where. I couldnt find this anywhere, so could you please help me? All the sugestions will be great to have. Thank you
Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
You need to read this: and this:
Everything you will ever need to know about coil guns is on the forum, in the archives or in the wiki. We don't answer these basic questions anymore because they have already been answered many times. To make sure you don't kill yourself or start a fire I have fixed your diagram. You should also have a safety resistor to slowly discharge the capacitor because it is dangerous if someone touches it while charged or partly charged.
Registered Member #1083
Joined: Mon Oct 29 2007, 06:16PM
Location: Upland, California
Posts: 256
You also need to be absolutely sure the mains is disconnected before you fire it. And to protect your capacitors, I added another diode across the coil:
Registered Member #1525
Joined: Mon Jun 09 2008, 12:16AM
Location: America
Posts: 294
Not likely. You are going to want a fairly large diode since you are likely to have a good amount of current running through it. Try a rectifier diode (google it) which is designed large currents at high voltage.
Registered Member #1800
Joined: Thu Nov 06 2008, 11:23PM
Location:
Posts: 7
could you give me a number or something that i could look for in a store, cause i have to deliver this next week , so internet is not an alternative, cause i need to get it in no time
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Help needed with first coilgun and little knowledge
