Just some photos of the new SLAP (Standard LGLF Armament Prototype).  It’s called the Thumb-SLAP because of the thumb-hole stock design.  This design uses the suicide trigger.  Note that the pump handle goes all the way around the plunger tube, and does not extend past the coupler.

I plan to eventually construct a variant of this blaster which is similar to the Rainbow Pump in appearance, and write it up for RyanMcNumbers’ homemade contest on Nerfhaven.  Some permutation of this blaster will also go on to be the official loaner/backup blaster of the LGLF

Photo gallery after the jump.

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Langley Note: This post will rape your bandwidth and mine. You’ve been warned. 

Last year, Split and I wanted to have a gentleman’s wager, over the redesign of the +bow. We never really wrapped it up, but I missed the deadline by a bit if I remember correctly and what have you. First time it got used was May last year when I got to chill with the U3 and all my NJ friends. Anyways, a while before this wager, I had made a Solidworks model of the +bow and set to modifying it to change little things that I thought could use improvements. Making this model was at times…. frusterating.

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This mod was originally created before Apoc ’10 in Split’s workshop in an effort to make the seal on the plunger tube perfect, as this is the absolute biggest issue on the Arrowstorm. The original idea was to completely replace the plunger tube, but that seemed like such a waste, as the original plunger tube has such ample volume to work with. By chance, I realized that the ID of the plunger tube is VERY similar to that of the +bow, so I grabbed a spare skirt seal I had and went to work. The results were pretty fantastic, and I decided to purchase another one to do a write-up for. (shoutout to Ubermensch for a good sale)

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I constructed a new SNAP variant today in an attempt to use the Suicide Trigger with a 360 degree catch notch (similar to Carbon’s Mk II design) but it seems that the plastic couldn’t stand up to repeated abuse from the metal catch pin despite my best efforts to smooth it out.  Pictured at right is the catch notch on the plunger rod after about a solid day’s worth of use.  It actually hasn’t failed yet, and works fine in this state, but I doubt it would last much longer in this condition.  I was successful in making a solid, stable handle with a smaller footprint for use with a sleeve-style pump action.  More photos after the break.

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Update – 1/5/11 – Photos of the new proof of concept at the bottom of this post.

I’ve been trying to put together a catch mechanism that can sit behind the spring, like the rainbow, so that I can make a pumpsnap where the pump doesn’t have to stick out in front of the gun. I had some ideas about using a 1/2″ flat endcap as a catch plate, but a post from PVC Arsenal 17 got me thinking about using a simple clothespin trigger on the plunger rod itself, and just using narrower pipe behind the spring to eliminate the space in between, to prevent the pin from being able to wiggle free. What I came up with is surprisingly simple.

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As we all know, the Hopper clip has been changing the name of the game. High-powered long range guns now have the rate of fire to compete with pretty much any other gun. However, the biggest drawback of the hopper is that its unwieldy as fuck: I’m not a fan of dealing with a two foot clip sticking of the top of the gun. Thus: I introduce to you, a new style hopper.

I call it, Muttonchop’s Hopper, also known as, THE CHOPPER. Lets get a video of this in progress

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I’m not a huge fan of breeches, although I’ve never really used one in a war. However, I got a good idea to make one, so I decided to make it and post a write up. So here we are.

To help get the idea of what this is, here’s a link to an LARGE cross section image of what this breech looks like. It’s pretty High res, or I’d just imbed it here.

Click for big

The idea is that it’s a breech that can be used with high volume springers. I’ve been using 5” of 17/32” nested in PETG with amazing results in my xbow’s speedloader, but unfortunately with a breech you can’t really twist the dart in. So with 1” of unconstricted 9/16” before the 17/32” you can push the dart 1” into the 17/32” if you’re using shorter darts that 2” there could definitely be some adjustments made. If people are interested, I can make a plan like the above for 1.5” darts or whatever, just ask.

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Hopefully the 1.0, if all goes well. Here’s what I got done today. Too bad I couldn’t finish it for PA4

Still needs a trigger, catch, handle and stock. Also, while pulling apart the .2 for some spare parts, I noticed that the plunger head was all cracked and broken, so that it would move forward just fine, but would leave the o-ring in the front of the plunger tube as it was cocked. I screwed a plastic bottle cap and a rubber gasket from a bottle of Grolsch into the end of the new plunger head (which was cracked right out of the box, wtf?).  Hopefully that will make a good enough shock absorber. Also, fuck Google Sketchup.

If you read my previous article, “Damage Report“, you already know that I’ve been trying to make a homemade Nerf gun using a pneumatic screen door closer as the plunger, spring and pressure chamber. After my last attempt, I decided to open up the screen door closer and take a look at the guts of the thing.

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The Harrowing Tale of the Construction and Destruction of the Doorfucker 3000

This was a post I made on NerfHaven back in January of this year about my experiences trying to build a nerf gun powered by a pneumatic screen door closer.  I’m reposting it here because it sets up my next project nicely.  In the near future I’ll be working on another atempt to build such a blaster which I call “The Langley Bow”.  Or just L-Bow for short.

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