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simple trigger system


— Posted by Uya on 6:51 am on Mar. 20, 2002

As i once saw in a book from WW2, a lot of ¬†people had made very simple guns. However, they all had acces to some kind of tools for making metal parts. I am looking for an easy triggering system to make, without a lot of springs or ” exotic ” formed triggers. WFT


— Posted by johnny 99 on 8:13 am on Mar. 20, 2002

more info please. What kind of gun are you trying to trigger? or is it something totally homemade,and if so what? also what type of tools DO you have available? A lot can be done with just a file, if you are willing to work at it.


— Posted by Uya on 8:25 am on Mar. 20, 2002

It,s a kind of ballpoint style gun. cal.22. All steel.I don,t like the “pull back and release” method..:-)). I once heard about using the clip as a triggersystem. I have the tools to drill very small holes, and saw metal.


— Posted by balor on 3:15 pm on Mar. 20, 2002

Some pen guns have a groove in the firing pin.A new clip is made with a small hinge in the middle of the clip so that when the barrel end of the clip is pressed,the other end of the clip is raised thus withdrawing the other end of the clip(which projects into the gun) from the groove in the firing pin leaving it fly forward.

(Edited by balor at 4:04 pm on Mar. 21, 2002)


— Posted by johnny 99 on 8:18 pm on Mar. 20, 2002

There is a very simple trigger that you can make for this type of firearm, that will discharge when you twist the body of the pen. but it is very dangerous without a safety of some kind! fair warning. all you have are 2 L shaped pieces of wire, one is the top of the fireing pin,with the short leg up and pointing 90 degrees to the body of the pen. the other is atached to the top of the pen pointing down. the short legs cross each other locking together until you twist the upper half of the pen turning them both parallel letting the striker spring forward.

(Edited by johnny 99 at 6:19 am on Mar. 21, 2002)


— Posted by Zero the Inestimable on 9:25 pm on Mar. 20, 2002

Putting a trigger on a “pull back and release” system is dead easy. If you have access to a Dremel and some spring steel you’re all set.

Consider the following:


–__———————————–
| __|| / / / /|
__| || / / / / |
— ———————————–/

Use your imagination and picture that as the spring chamber of the gun, with the bullet at the leftmost part of the diagram, and the piston with the firing pin at the right. This is the only design of “pull back” zipgun I’ve seen. Usually the pull pin is on the back – I like to keep mine on the top. More compact that way. Regardless, with this design the pin is pulled back, dragging the piston and pin with it, and then released for the spring to drive into the primer of the bullet, setting it off. All we need to do is cut a slot into the bottom of the assembly for a sear to protrude:


–__———————————–
| __|| / / / /|
__| _|| / / / / |
— —————/-|====————/
|
//
//

The sear is angled on one face so the trigger will be pushed out of the way when the gun is “cocked”. The flat face will hold the piston back until you pull the trigger back. It’s attached to the body of the gun with a flat strip of spring steel, so when you pull back it will also want to swing downwards, moving the sear out of the way and releasing the piston.


—————————-
| | / /
__| | / /
_ | | / /
/ || |/ /
—/ |——————–
|————
/ /
/ /
//

—————————-
| | / /
| | / /
| |/ /
—————————
/ | __——-
/ |–
|
/ /
/ /
//

Get the idea?

(ASCII art is murder on this board. You need to switch to a fixed-width composition font!)

~Zero the Inestimable


— Posted by Uya on 7:03 am on Mar. 21, 2002

Thanx you all. I will go for the clip, i got the idea, now only some work. And Zero, the drawing was great and made things easy. I only had acces too fabric drawings of guns. Hey, simplicity is life’s joy..:)


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