Trying to duplicate the vm-68 double trouble reative trigger - Page 2

infamoussmiley · 04-02-2008, 10:01 AM

Can you take pics of the "tri burst"? I'm a visual person

smiley

secretweaponevan · 04-02-2008, 10:47 AM

Quote:

Originally Posted by HP_Lovecraft

Another option, if they still make it, is the "Tri-Burst".
When the double-trouble came out, I wanted it.... but didn't want to pay that much.

By chance, I happen to see an advertisement in a shooting magazine for something called a "Tri-Burst". It attached to your trigger guard, to make a firearm shoot a 3-shot burst, and still be legal. It was only $20, so I bought it.

When it arrived, I was a little disappointed. It consisted of a LONG trigger, connected to a cam with 3 "pegs" on it. When you pull the trigger, the pegs would activate a linkage, which would push the real trigger.... 3 times.

It sorta worked when you pulled slow, but didn't seem to work at all when you pulled fast. So, not very usefull, but it might offer an alternative approach for an external mechanicam using a cam-shaft, with 2 or 3 sprockets.

nick

Wow, what was that? like 15-20 years ago? I remember that ad.

incynr8 · 04-02-2008, 10:53 AM

GunBroker.com guns: triger activer tri burst (item: 96059297 ends: Apr-04-08 09:33:01 PM)

HP_Lovecraft · 04-02-2008, 09:47 PM

Wow- Even a picture of the parts.... nice.

That came out at the same time as the "Hellfire", and similar bump-fire kits. Basically, legal ways to get full-auto. California banned them in the mid 90s, and they sorta died out since they lacked any purpose. Some were very sophisticated.

A variation on the triburst above would be something even simplier:
A "rachet" trigger.

Basically, build a second trigger that is attached to a rachet gear. Basically, like the gears on a 10-speed. The gear will advance the wheel, would has an actuator that pushes the trigger.

So, pulling the trigger advances the wheel, releasing does not. SO, then add another "rachet" gear for the reverse stroke. Both driving the same wheel. So that pulling, AND releasing both advance the wheel in the same direction.

infamoussmiley · 04-07-2008, 08:05 PM

I tink I undertand....

infamoussmiley · 08-13-2008, 12:04 PM

Okay, I'm still looking. I had one in my hands, but he sold the gun to an 8 year old nephew of his

.

I just need one to duplicate and then I can make copies. I have the person who will make the duplicates already to go.

Still looking

smiley

infamoussmiley · 05-10-2010, 06:23 PM

still looking

infamoussmiley · 10-04-2010, 10:46 AM

Still looking for one of these.

Smiley

04-02-2008, 10:01 AM	#11 (permalink)
infamoussmiley . Join Date: May 2006	Pics? Can you take pics of the "tri burst"? I'm a visual person smiley

04-02-2008, 10:53 AM	#13 (permalink)
incynr8 Purify with flame Join Date: Apr 2006 Location: On some dinky hill	GunBroker.com guns: triger activer tri burst (item: 96059297 ends: Apr-04-08 09:33:01 PM) __________________

04-02-2008, 09:47 PM	#14 (permalink)
HP_Lovecraft MCB Member Join Date: Aug 2006 Location: Southern Maine	Wow- Even a picture of the parts.... nice. That came out at the same time as the "Hellfire", and similar bump-fire kits. Basically, legal ways to get full-auto. California banned them in the mid 90s, and they sorta died out since they lacked any purpose. Some were very sophisticated. A variation on the triburst above would be something even simplier: A "rachet" trigger. Basically, build a second trigger that is attached to a rachet gear. Basically, like the gears on a 10-speed. The gear will advance the wheel, would has an actuator that pushes the trigger. So, pulling the trigger advances the wheel, releasing does not. SO, then add another "rachet" gear for the reverse stroke. Both driving the same wheel. So that pulling, AND releasing both advance the wheel in the same direction. __________________ www.montneel.com "the evidence strongly suggests that neither Billy nor Adam (Smart Parts) could have invented the electronic paintgun" -Garr M. King, U.S. Judge

08-13-2008, 12:04 PM	#16 (permalink)
infamoussmiley . Join Date: May 2006	update - still looking Okay, I'm still looking. I had one in my hands, but he sold the gun to an 8 year old nephew of his. I just need one to duplicate and then I can make copies. I have the person who will make the duplicates already to go. Still looking smiley

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04-07-2008, 08:05 PM	#15 (permalink)
infamoussmiley . Join Date: May 2006	I tink I undertand....

05-10-2010, 06:23 PM	#17 (permalink)
infamoussmiley . Join Date: May 2006	still looking

10-04-2010, 10:46 AM	#18 (permalink)
infamoussmiley . Join Date: May 2006	Still looking for one of these. Smiley