NerfCrazy

Some credit goes to venom for inspiration to do this. Venom gave me an air tank, some money, and something else that I forgot about since it was a year ago. The air tank partially held air but leaked really quickly. So week ago I searched through my closet (its a large closet filled with nerf stuff) trying to get some stuff together for the mini war last Saturday, and I came across the air tank off in a corner and thought to myself, didn't I say I would make it work. Yes I did so 3 days ago I drew up some plans for a new one and 2 days ago set off to make it. So here are my plans. Also sorry my camera acted up and I am currently saving up for a new camera. Also this is my first home made so and constructive criticism is welcome. Also total cost is around $10 unless you have the pvc, cpvc and couplers already and make about 2 of these. If not its about $13.


So here are the supplies
All parts acquired from ace
1/4" steel rod no idea
3/4" pvc 20 cents a foot
1/2" pvc pre acquired
1/2" cpvc 50 cents a foot
pvc cement pre acquired
4 #82 o-rings od 1/2" id 5/16" thickness 3/32" - 29 cents each (make sure it fits snug on your rod and when you try to put it in cpvc without gluing the tubing in place they twist/slide slide down the rod)
3 (one extra for good measure) #59576 washers 1/4" ID - 16 cents each
2 (one extra for good measure) #59578 washers 3/8" ID - 18ish cents each
superglue
drill and drill bits
epoxy putty - pre acquired
some size vinyl tubing for you pump - pre acquired
some size vinyl tubing that fits over the steel rod (venom you know this size since you gave me it) - pre acquired
4 1/2" cpvc end caps (2 extra in case you mess up on the first 2) - 59 cents each
2 3/4" couplers - 29 cents each
1 1/2" pvc coupler - 39 cents each
silicone grease or some lubricant that doesn't eat away at o-rings - 4.79 dollars
tape measure pre acquired
pipe cutter device whether it be a ratcheting pipe cutter or a hack saw - pre acquired
hammer - pre acquired
vice - pre acquired
e-tape
sharpie


So cut 5 1/4" of 1/2" cpvc and 6 1/2" of 3/4" pvc.


Now take 2 of your cpvc end caps and find the center (I drew lines across what I thought was the middle and went in a circle like that) when you like you found the center put it in the vice and drill a hole.


Now cut some cpvc and put it in the end caps. Make sure you have one tube 2 and 1/2 o-rings longer than the other to ensure that when you pull the firing pin the front o-rings come out pf the cpvc and the back o-rings come close to or rest on the end cap. Then shave down the inside lip of the cpvc to round it so the o-rings can slide in and out easily. Then super glue them into the end caps.



Now take your washers.


Then glue them together somehow while having them centered for best support. Washer sandwich! (that's right venom stole your term) I hot glued them first then added super glue to it.


Now measure out on your 3/4" pvc so that you have enough room for air to flow through the hole in the washers and around the o-rings. Here is how much I measured.


Here is an example on how I cut mine based on my front tube (the shorter one). Then when you have it measured appropriately and have cut it round off one side of the pvc edges so hammering it in is easier, then hammer it in with maybe 1/8" to 1/4" stid\cking out then super glue it in.


Now we work on the seal for the front half. Slide some tubing on and twist it down the rod and cut it off, try for it to be about the size of the orings to save space. Then slide two o-rings on and push them together,
then slide some more tubing on the front side like the first time you did it. Take your other end cap with the cpvc in it and make sure its the smaller one and put the rod into it. Push it flush against the end cap so there is a small amount of rod actually inside the plastic sticking out so none of it is inside the end cap where you put the cpvc cpvc in. See how I made sure that there was enough space on the rod to go into the cpvc equivalent to its thickness. Super glue the vinyl tubing to hold it in place, when the glue dires apply some lubricant to the o-rings and put it all the way into the front smaller seal assembly.


Then with the assembly in put the coupler on the front half, don't worry you won't need to get it off later. With the front half assembled with the coupler put the other half next to the coupler at its mid section. Put the longer end cap assembly flush up next to the bottom of the 3/4" pvc and take note to where the o-rings have to be to create a seal, mark that with a sharpie or something so you know where you have to place the o-rings. Slide on some vinyl tubing and make it the size of an o-ring, then slide o-rings on so the side of the o-ring is next to the mark or a little bit away from it. Slide some vinyl tubing up to the o-rings and glue them in(the vinyl tubing). Thats confusing so here is a diagram made on paint.


Then hammer in the back and cap and make it flush with the 3/4" pvc. Slide out the assembly and add your lubricant to the o-rings. Then take the back half and drill a hold in the case using your drill and vice, make sure you make the hold ahead of the cpvc sealer. Put your tubing into it and super glue it in. make sure you don't have any tubing getting in the way of anything though. Then glue your pump to the tubing if you don't have that done already.


Put everything together using the pvc cement make sure it doesn't get on the o-rings. So the assembly will be pump side, coupler and washer sandwich, output side. I put a 3/4" pvc coupler on the end and made an attachment for it so I can use 1/2" pvc (I couldn't find any 3/4" to 1/2" pvc reducers). Start by hammering some 1/2" into 3/4" and glue coupler and the home made reducer together, then glue to the body of the air tank. Make sure you have enough foom for the 1/2" coupler to go onto the 1/2" pvc, then glue on.


Here is your finished product. A bit long but that is due to not finding the reducer.

Ranges seem like a 2k maybe better maybe a bit worse but mine has a great air seal. You can now add some epoxy putty to smooth out the edges if you please to.

Ranges are around 110-120 ft using 12" of petg

Well some of you have noticed that I haven't been as active as I used to be. In this time I have been at a friends house working on a fun platform game. Some of you may be thinking making a simple game can't take that long but we have been working on another game that will be amazing. The game is just for having fun and doesn't have a storyline just simple addictive fun. The game can be found here on yoyogames.com. Please try the game and leave some feedback and even rate it if you want to, we hope you enjoy the game.

This thing is easier to mod than a nf.
Supplies
ratcheting pipe cutter
hot glue
plumbers goop
cpvc and coupler

Firs off cut off most of the barrel. Easy measurement cut to the F in the nerf logo. Also, make this cut as straight as you can following the normal direction of the barrel.


Now you have this.


First add hot glue and when that dries ad the goop so it will hold. Also, rough up the area you are gluing.


Now cut a barrel anywhere from 4-6 inches. I used about 4.5 more for when I band it.
I would have replaced the spring but there are no screws just glue holding it together.

Bam, at least 35' flat.

Questions, comments, flames?

These pictures were taken with the view finder and not the screen because that is broken. So I hope you don't mind the target being at the bottom of the pic. This is also my 7mp camera and all future writeups will be made with this camera.

Really easy to mod this gun. I feel it was easier to mod than a nf.
Supplies
hot glue
a cutting device such as a ratcheting pipe cutter
etape
cpvc and coupler
pencil or something

Here are the internals.


Now take out the barrel setup and put the yellow piece into the coupler and mark where the yellow tube goes into the coupler halfway and cut that off. Then wrap it in etape so the coupler fits on snug.


Now trim off excess etape and hot glue the coupler on. Also rough up the area where you are hot gluing.


I wrapped some etape around the area where I glued for some extra strength.

Now you will need to trim the case to fit the coupler.


Now hot glue it in and you are done.


I use a barrel about 7" and it gets at least 50'.

I have been busy modding and making writeups(my second writeup today) so I hope you enjoy it.

Supplies
hot glue gun
industrial spring or some stock spring
another stock spring
5/8" drill bit
drill
etape
cpvc
hacksaw

First cut a piece of cpvc as long as or a little longer as the stock barrel.


Now take the end piece and drill through it.


Then slide it on the cpvc and it should be an extremely tight fit. Leave a little bit sticking out from the end.


Now wrap some etape around the bottom so it fits nicely in the plunger tube.


Now take another spring and wrap it together with the lsfg spring.


Then cut off 1 or 2 coils from each one. I don't have a picture.

Now measure inside the case so that the catch mechanism and the industrial spring have constant force. Then cut it to that length.


Here is how it all should look. (I was testing the rest of the industrial spring and it got less range than two combined springs but that was most likely from something wrong inside it. Trim down the long plastic piece on the priming handle so it doesn't get in the way of the spring.


Now put your gun back together and now you are done.
I don't have ranges yet but will hopefully will tomorrow.

As you can see my camera is fixed.