Simple Coil Gun - Page 4 - Electronic Circuits Projects Diagrams Free

mikhail666 · 22nd May 2006, 05:00 PM

Quote:

Originally Posted by Someone Electro

You have all the information you need.

If you know so litle you better stay awey becuse a coilgu means dealing whit high volategs at high curents.

i just want a layout diagram for the coil part. i know the rest.
thanks anywys

Someone Electro · 22nd May 2006, 07:03 PM

Ummmmm

What?

I dont realy understand what you want

brihoo2k · 24th May 2006, 01:56 AM

that thing is sweet maybe ill make one myself

Someone Electro · 24th May 2006, 11:31 AM

Feal free to.

Get some caps of ebay.Get a big SCR or parallel lots.

moody07747 · 25th May 2006, 01:27 PM

the foil in place of the coil is a nice effect too...try some steel wool as well

be sure to do all those ouside though...huge fires will start in the house lol

anyways heres a link to a site that has allot of high voltage projects along with coil guns

http://4hv.org/news.php

i believe you have to sign up to get to the boards there

Someone Electro · 25th May 2006, 04:15 PM

Yep its prety spectacular. Even whith 90Joules i got big sparks flying.

I got a 880 Joule bank and the resulty should be prety big and loud.

**Nigel Goodwin** · 25th May 2006, 04:50 PM

Quote:

Originally Posted by Someone Electro

Yep its prety spectacular. Even whith 90Joules i got big sparks flying.

I got a 880 Joule bank and the resulty should be prety big and loud.

Perhaps I better get a map out?, and see how far you are from the centre of the UK

I live pretty well dead centre of the UK, as far from the sea as you can get, in fact a village a couple of miles from me is one of a number who claim to actually BE the centre of the UK. Apparently it depends how you measure it!.

Someone Electro · 26th May 2006, 04:31 AM

Dont wory you live far enugh LOL

muki55 · 31st August 2006, 04:13 AM

try this one much more powerful coil gun

freeskier89 · 31st August 2006, 05:33 AM

I am not sure that it is anymore powerful. The only advantage of that design is that it uses multiple stages, which can increase efficiency.

4700uF at 25V contains much less energy than 10000uF at 100V. If you want you can use the formula Energy(Joules) = (CV^2)/2. Also, multistage designs require a lot more tweaking.

Someone Electro · 31st August 2006, 09:07 AM

Fist of all as menthones the powersuply is way to small
2nd using a BJT transistor in a coilgun is stupid,becuse they can only handle about half times more pulse curent than continues.(somthing like 15A wont get a projetile very fast)
3rd it has no protection diodes.The transistors and the counter IC would get fryed by the negative pulse.

Also this is a open loop design,wich means it only times the thurn on times.A proper multistage guy has optointerupters to detect the projetiles postition and fire it at the ptimum time no mather the projetile size and weight.Closed loop designs need a lot of tweking just to get the projetile out of the barel and a lot more tweaking to get it to a good speed.

EDIT:
Noticed a nother thing.There is a 16V cap on a 25V suply line.Cap would pop.

muki55 · 7th September 2006, 02:40 AM

Quote:

Originally Posted by freeskier89

I am not sure that it is anymore powerful. The only advantage of that design is that it uses multiple stages, which can increase efficiency.

4700uF at 25V contains much less energy than 10000uF at 100V. If you want you can use the formula Energy(Joules) = (CV^2)/2. Also, multistage designs require a lot more tweaking.

Small Coil Gun SCR trigger. huh!!!!!

Someone Electro · 7th September 2006, 03:46 AM

Thats a prety complicated sicruit just to drive a SCR.

All i did was a voltage source and a resistor to gate.

freeskier89 · 7th September 2006, 04:29 AM

Quote:

Originally Posted by muki55

Small Coil Gun SCR trigger. huh!!!!!

I am not totally sure what you are trying to say, but yeah, I would recommend that design over the other one you posted, but I agree with Someone Electro, that the SCR drivin g part of the circuit could be a LOT simpler and it would work exactly the same. Its kind of like putting in a voltage regulator when you are just trying to saturate a BJT; you could use a vreg, but a resistor would do the same thing and save many components

venomxx · 8th May 2007, 01:06 AM

anyone still following this post ?

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22nd May 2006, 07:03 PM	(permalink)
Someone Electro	Ummmmm What? I dont realy understand what you want __________________ Il give you shocking experience.

24th May 2006, 01:56 AM	(permalink)
brihoo2k	that thing is sweet maybe ill make one myself

24th May 2006, 11:31 AM	(permalink)
Someone Electro	Feal free to. Get some caps of ebay.Get a big SCR or parallel lots. __________________ Il give you shocking experience.

25th May 2006, 01:27 PM	(permalink)
moody07747	the foil in place of the coil is a nice effect too...try some steel wool as well be sure to do all those ouside though...huge fires will start in the house lol anyways heres a link to a site that has allot of high voltage projects along with coil guns http://4hv.org/news.php i believe you have to sign up to get to the boards there __________________ Dave www.myspace.com/sonicorbstudios Welcome to "Sonic Orb Studios"

25th May 2006, 04:15 PM	(permalink)
Someone Electro	Yep its prety spectacular. Even whith 90Joules i got big sparks flying. I got a 880 Joule bank and the resulty should be prety big and loud. __________________ Il give you shocking experience.

26th May 2006, 04:31 AM	(permalink)
Someone Electro	Dont wory you live far enugh LOL __________________ Il give you shocking experience.

31st August 2006, 05:33 AM	(permalink)
freeskier89	I am not sure that it is anymore powerful. The only advantage of that design is that it uses multiple stages, which can increase efficiency. 4700uF at 25V contains much less energy than 10000uF at 100V. If you want you can use the formula Energy(Joules) = (CV^2)/2. Also, multistage designs require a lot more tweaking.

31st August 2006, 09:07 AM	(permalink)
Someone Electro	Fist of all as menthones the powersuply is way to small 2nd using a BJT transistor in a coilgun is stupid,becuse they can only handle about half times more pulse curent than continues.(somthing like 15A wont get a projetile very fast) 3rd it has no protection diodes.The transistors and the counter IC would get fryed by the negative pulse. Also this is a open loop design,wich means it only times the thurn on times.A proper multistage guy has optointerupters to detect the projetiles postition and fire it at the ptimum time no mather the projetile size and weight.Closed loop designs need a lot of tweking just to get the projetile out of the barel and a lot more tweaking to get it to a good speed. EDIT: Noticed a nother thing.There is a 16V cap on a 25V suply line.Cap would pop. __________________ Il give you shocking experience. Last edited by Someone Electro; 31st August 2006 at 09:17 AM.

7th September 2006, 03:46 AM	(permalink)
Someone Electro	Thats a prety complicated sicruit just to drive a SCR. All i did was a voltage source and a resistor to gate. __________________ Il give you shocking experience.

8th May 2007, 01:06 AM	(permalink)
venomxx	anyone still following this post ?