MOCpages : Share your LEGO® creations
LEGO models my own creation MOCpages toys shop Hoang Phong's Double Barreled Paper Wasp Gun
Welcome to the world's greatest LEGO fan community!
Explore cool creations, share your own, and have lots of fun together.  ~  It's all free!
Hoang Phong's Double Barreled Paper Wasp Gun
About this creation
After building Hoang Phong's Paper Wasp Gun I dismantled it and made the double barreled version. Of course I made modifications to reflect my lego collection, but the mechanism is the same. The idea behind it is that both ratchets are lifted by pulling the trigger, but one ratchet is released by a light squeeze of the trigger and the other is released when you pull it even farther. It follows that pulling the trigger all the way you will fire both barrels at once.


As you saw in the first picture, the piece that lifts the ratchet off of the gear is shorter than the one shown here. When the trigger is pulled this lever will move a greater distance and lift the ratchet on this side first, pulling it a little more will release the other ratchet.


Here's the view of the gun looking down the barrels, the gun isn't loaded with anything right now, but I do have the rubberbands cocked to demonstrate how the mechanism works. If you want to see the gun loaded, check out either the single barreled version I built, or Hoang Phong's original single and double barreled guns.



In the original gun, there was concern about the post that the rubber bands were attached to, apparently the tension was too much and it bent the plastic pieces permanently. Since I've broken enough pieces already to not be able to afford breaking more, I went for a less stressful approach and had rubber bands pulling from both directions and reduced leverage by keeping the projection close to the body of the gun.

I have had some small difficulty with this gun, it misfires about every third firing on the right side. I could conduct tests to find out why, but I'm too lazy. ;)
Similar to my remake of the single barreled gun, I left out the cocking levers and instead used larger gears (or in that instance a large wheel) that I could roll back with my thumb so that I could cock with my right hand and load with my left.



Comments

 I made it 
  January 27, 2011
Quoting Thijs van Ooij Very small and practical, just like the original. Perhaps the misfires could also be caused by how you place the wasps?
Actually, just looking at it after two years, I can see the problem. Because there is only one rubber band being stretched twice, upon firing, one side of the band will stretch differently, causing a slight twist that would likely cause the misfire.
 I like it 
  January 27, 2011
Very small and practical, just like the original. Perhaps the misfires could also be caused by how you place the wasps?
 I made it 
  March 14, 2009
Quoting Hoang Phong That's sweet. I think the misfire could be due to paper wasps' quality or deterioration of rubber band. Perhaps your rubber band is a little bit old so after some consecutive shots it gets weak and misfires.
I doubt it, I made my wasps very well and I made sure the rubber band was brand new and in excellent shape since the other one I used for the single barreled version broke. I'm sure I could find out why it misfires, but I don't feel like taking the time (I'm behind in my schoolwork).
 I like it 
  March 14, 2009
That's sweet. I think the misfire could be due to paper wasps' quality or deterioration of rubber band. Perhaps your rubber band is a little bit old so after some consecutive shots it gets weak and misfires.
 
By Jeff Fauble
Add to my favorite builders

3
people like this. See who.

1,587 visitors
4 comments
Added March 13, 2009
 


LEGO models my own creation MOCpages toys shop Hoang Phong's Double Barreled Paper Wasp Gun


You Your home page | LEGO creations | Favorite builders
Activity Activity | Comments | Creations
Explore Explore | Recent | Groups
MOCpages is an unofficial, fan-created website. LEGO® and the brick configuration are property of The LEGO Group, which does not sponsor, own, or endorse this site.
©2002-2014 Sean Kenney Design Inc | Privacy policy | Terms of use