174 replies to this topic

[rork]

I'm going to address an issue brought to my attention by Galaxy. If you have a problem with clearance in regard to the cpvc T and the stock, I suggest putting a half-pipe of 1 1/4" sched. 40 PVC under the 3/4" coupler, between it and the 1 1/4" endcap at the end of the plunger tube. Just anchor it with longer screws (3/4" should be perfect). This should give you the clearance you need. If you would like more, you could put a bit of 1 1/4" coupler under the half-pipe. ~Rork

Bustaninja: out of curiosity, what is your adaptation like? I've had a few people talk about using something other than a +bow spring, but with the SNAPbow's overall ergonomic structure.

[BustaNinja]

I'm going to address an issue brought to my attention by Galaxy. If you have a problem with clearance in regard to the cpvc T and the stock, I suggest putting a half-pipe of 1 1/4" sched. 40 PVC under the 3/4" coupler, between it and the 1 1/4" endcap at the end of the plunger tube. Just anchor it with longer screws (3/4" should be perfect). This should give you the clearance you need. If you would like more, you could put a bit of 1 1/4" coupler under the half-pipe. ~Rork

Bustaninja: out of curiosity, what is your adaptation like? I've had a few people talk about using something other than a +bow spring, but with the SNAPbow's overall ergonomic structure.

I will hopefully have pictures to show when MNNO videos and pictures are uploaded

[Pokechan]

Sorry for the kinda newbish question, but how hard is it to prime the gun? Im making 2, one for me and one for my 10 year old brother. He wanted to know, not me...

[BustaNinja]

Hard. +bow springs are beastly.

[BustaNinja]

Sorry for the kinda newbish question, but how hard is it to prime the gun? Im making 2, one for me and one for my 10 year old brother. He wanted to know, not me...

You could probably cut an even wimpier fourth notch in the bar, if you have to.

What the hell are you talking about? He was refering to the SNAP bow, not the plus bow. There is only one stop on the SNAP that the catch interacts with. Rork simply uses the same spring that would normally be found in a +bow or AR15

[rork]

Actually, the next iteration of the design will almost assuredly feature something comparable. Hehehe... You'll like it when you see it. ~Rork

[BustaNinja]

Actually, the next iteration of the design will almost assuredly feature something comparable. Hehehe... You'll like it when you see it. ~Rork

You copy my design for the gun and I will be mad. Im kidding. Your more about function over form anyway.

[rork]

Meh. You're safe. The design I was talking about makes the trigger mech too hard to place, among other things, so it's back to the old-school plunger, although I did find that it's certainly possible to have multiple catch-faces in play with a SNAP. And yes; function over form is definitely my mantra, athough sleekness is on the menu currently.

Edited by rork, 30 September 2008 - 05:32 PM.

[Pokechan]

Is there any other spring i could replace it with so he could actually prime it?

[BustaNinja]

Is there any other spring i could replace it with so he could actually prime it?

There should be a spring from ACE hardware that is 10 inches long and fits perfectly around a half inch dowel.

[Carbon]

Is there any other spring i could replace it with so he could actually prime it?

There should be a spring from ACE hardware that is 10 inches long and fits perfectly around a half inch dowel.

I believe that's the #62. It's the spring I always use.

[BustaNinja]

Is there any other spring i could replace it with so he could actually prime it?

There should be a spring from ACE hardware that is 10 inches long and fits perfectly around a half inch dowel.

I believe that's the #62. It's the spring I always use.

Its the one you suggested to me aswell. Good spring. My SNAP gets ranges similar to the Xbow with one in there.

[roboman]

I used the #62 spring in my SNAPs, and a 5 year old could prime it (not kidding!). Unless your brother is weaker than a kindergartener, I think he'll be able to cock it.

[rork]

REV. 3 IS FUNCTIONALLY COMPLETE.

I'd been talking with Bustaninja about his forthcoming CrossSNAP, which is all bulked up and what-not. I liked it. So naturally, I did the exact opposite with rev. 3 of the SNAPbow.


(Top: rev. 3. Bottom: rev. 2. Middle: AT3K for reference. This thing ain't bulky)



Major changes:

The front coupler assembly has been eliminated, replaced with a 1x1/2" bushing warpped in e-tape and teflon tape, a la the +bow. This eliminates the uncomfortable, bulbous feel of the standard SNAP, and gets rid of the need for a fore-end, meaning you don't need 2" pvc any more. The stock now fits down onto a 1/2" plug, which is screwed into the endcap, just like the cpvc endcap. The trigger hole is now 4 1/2" forward from the rear of the blaster; the endcap doesn't need to be cut down, I found, which lengthens things a bit. It still has a 6 1/2" plunger stroke. The 1 1/4" pvc plunger tube is 12 1/2" long. Plunger assembly is the same as rev. 2. The new blaster is lighter, more comfortable, sturdier, and much easier to build. Questions? Comments? Flames? ~Rork

Edited by rork, 04 October 2008 - 05:32 PM.

[BustaNinja]

Ok, thanks. Now I have to steal the front coupler idea too.

I really like it. Its sleek, and with a different take on the stock, you could make it even sleeker. Great work Rork. I look forward to showing off my homemeade work.

[rork]

Yeah, I really like the new stock design; it's only half an inch higher, but that's enough to keep the plunger rod WAY away from both the stock and your cheek. Plus, it's a Plusbow/Crossbow-styled offset, which is a. cool, and b. doesn't require dremeling grooves. Not tht there's anything wrong with that. And as for the front bushing: I basically figured out that 1 1/4" pvc has a very similar ID to the polycarbonate tube that forms the +bow's pressure chamber; it was just a matter of imitating Slug from there. Works GREAT; just be sure to tweak the seal until it's right. The new design is slightly cheaper, as well.

[BustaNinja]

Yeah, I really like the new stock design; it's only half an inch higher, but that's enough to keep the plunger rod WAY away from both the stock and your cheek. Plus, it's a Plusbow/Crossbow-styled offset, which is a. cool, and b. doesn't require dremeling grooves. Not tht there's anything wrong with that. And as for the front bushing: I basically figured out that 1 1/4" pvc has a very similar ID to the polycarbonate tube that forms the +bow's pressure chamber; it was just a matter of imitating Slug from there. Works GREAT; just be sure to tweak the seal until it's right. The new design is slightly cheaper, as well.

my grooves were for a charging handle like that of an M16 rifle, nothing more then a boyish indulgence, something I found a bit painful at MNNO. I rectified that with the CrossSNAP design, which is complete. I just need to take a screen shot or 5

[rork]

Hearing you on the pain.I actually love my stock design, as it enables me to shoot with an actual cheek weld, instead of dodging the charging handle and hoping for the best. I look forward to seeing the CrossSnap.

[perezinthenet]

Do you still need to drill holes in the back of the plunger tube? And also, would an ace # 62 spring get the same ranges as a plusbow spring?

Edited by perezinthenet, 04 October 2008 - 07:07 PM.

[rork]

1. Yes. It isn't quite done (tape, lack of holes, etc.).

2. No. Carbon's tend to get 70-90. The Plusbow spring is the most evil coil of wire known to Nerfkind.

[perezinthenet]

Ok thanks, about how many holes?

[rork]

If you had actually read, you'd know that there was a lengthy discussion on this subject; I used about a dozen quarter-inch holes on the rev. 2. On this one, I'm going to try either 6 or 8, drilled through the sides of the endcap, with a further 8 in the back of the endcap if I need them. Conversely, you could just drill a couple of half-inch holes in the back part of the pressure chamber.

[Galaxy613]

VERY nice fix for the stock. Make the CPVC tee completely clear from the stock. Now that I finally got money (Thanks everyone who bought my guns at DCNO ) I can put in a order for some +Bow springs from McMasterCarr!

I'll definetly apply your new stock connection idea, and I'll probably use my SNAP K100 as the basis. My Snap is going to be VERY unique!

Edited by Galaxy613, 04 October 2008 - 09:22 PM.

[rork]

I just moved the handle attachment off the endcap and onto the plunger tube a la Carbon (There's room there now). MUCH better. The difference between 2.0 and 3.0 is pretty remarkable.

[zadjii]

really don't want this to be hijacking your thread, but here it goes:

For engineering we have a project where we have to launch a ping pong ball 17' ( i know, minisculine in nerf terms). I also want to make me one of these. do you think a SNAPbow could be used to fire ping pong balls?

for reference, a ping pong ball requires 1.5" SCH 40 pvc as a barrel.

the last design= Full Effeminate fail
this=No?