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#121001 Modification and Paintjob Pictures

Posted by SHADOW HUNTER ALPHA on 24 August 2007 - 02:06 PM in Modifications

Does it matter if he's not shooting anyone?

BigFoot: Does the paint make the slide difficult to pull back (because the portion of the gun that it slides on is thicker), or is there not really any noticeable difference? Also, what grit sandpaper (or what Dremel bit) did you use to get such a smooth look?



#100722 Modification and Paintjob Pictures

Posted by SHADOW HUNTER ALPHA on 03 March 2007 - 12:36 PM in Modifications

This is my longshot.

I think you mean Double Shot.

Edit: CH got there before me.



#106820 Modification and Paintjob Pictures

Posted by SHADOW HUNTER ALPHA on 20 May 2007 - 08:18 PM in Modifications

CS, you're starting to scare people with what you do to the guns in the Unity Power System.



#123725 Modification and Paintjob Pictures

Posted by SHADOW HUNTER ALPHA on 20 September 2007 - 09:16 PM in Modifications

Never lube a gun with WD-40. The solution eats away rubber (meaning your O-rings), and your gun will suffer tremendously. Other than that, the gun looks good. Barrel is a little crooked, though.



#93254 Homemades Picture Thread

Posted by SHADOW HUNTER ALPHA on 29 October 2006 - 01:23 PM in Homemades

Damn, sponge. I can't wait for those test-shot results. By the way, how long is the barrel on that thing?



#129896 Homemades Picture Thread

Posted by SHADOW HUNTER ALPHA on 16 November 2007 - 03:07 PM in Homemades

Great work, Rifle. Does your gun fire megas like the FAR, or do you have a nested brass barrel and some inserts in those shells?



#130000 Homemades Picture Thread

Posted by SHADOW HUNTER ALPHA on 17 November 2007 - 03:45 PM in Homemades

CPVC in the shell lines up with the brass in the barrel almost perfectly.

Is there any problem with the dart's transition from CPVC to brass? If not, I think my redesign of my shotgun concept might work. Since brass shells are expensive and time-consuming to make, I was going to use CPVC ones.



#93839 Homemades Picture Thread

Posted by SHADOW HUNTER ALPHA on 07 November 2006 - 12:04 PM in Homemades

You should put some range test results up here, as well as some statistics about barrel length, etc. It would be great to use that thing as a snįper rifle or something.



#102002 Dartsmithing Tips Archive

Posted by SHADOW HUNTER ALPHA on 09 April 2007 - 06:46 PM in Darts and Barrels

The barrel I use CPVC
Heres the picture of the brand of FBR by Frost King. Except it's a 30' bag and it's the dark grey kind.

Never use Frost King FBR. The batch consistency is terrible, and their measurements are inaccurate most of the time.



#99921 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 16 February 2007 - 05:36 PM in Homemades

How big is this thing going to be? It looks huge.


I don't know about CH, but my shotty (I am beginning the final design phase now) is only intended to be slightly larger than a Longshot (without barrel extension and with extended stock).

Also, glad to see that the topic is still alive.



#100403 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 25 February 2007 - 02:02 PM in Homemades

SHA, I have no idea how to solve a rotating bolt issue, though I'd assume you could just use Bolt's design in the shotgun shell. Really all that would need to be different is the loading mechanism (Again, where I'm having trouble. It would probably work if I switched to a clip shotgun.).

Since nobody currently knows the answer to this problem, my Mk. 1 variant will be bolt-action. If it is successful and I figure out the answer to this question, then I will make a pump-action Mk. 2 variant.



#100774 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 04 March 2007 - 02:00 PM in Homemades

And I need to know how Boltsniper put the spring in his because there isn't much space to do it they way I did in the FAR.

I was just going to make a hollow spot opposite the extractor where I could lock in the spring and base of the ejector, and cover that with another layer of PVC.



#99962 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 17 February 2007 - 09:06 PM in Homemades

Of course, I will be making anything that can be smaller smaller.


A couple tips for anyone building a shotty:

1) Having a lot of shells in the magazine is great, but don't forget that each additional shell increases the required length of the spring, tube, and overall gun.
2) Housing the plunger within the stock can drastically reduce the length of the gun.
3)Barrel length needs to be tested for the optimal length, depending on your ammo dimensions and power of your plunger.

Also, if anyone has figured the kinks out of the pump-action system, then I would like to know what you did so I can switch back to my original pump-action design. (I.e.: how do you keep the rotating head from turning too soon and not locking with the back of the barrel.)



#100470 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 26 February 2007 - 06:58 PM in Homemades

Even though I'm a noob here, I'm a gamer, and this is really irritating to me too, you people need to understand that shotguns fire SHOT, which is a bunch of projectiles at once, please try to understand that.

Nobody asked you to be a jackass and give a lecture on what to call our homemades, Jergling. I am aware of what a shotgun is, having fired several before. However, the design and operation are identical to that of a shotgun, and that's what I'm going to call it. Unless you have a contribution to make that will help these guns get built, please do not respond in my thread again to make room for other developments.



#107007 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 21 May 2007 - 08:59 PM in Homemades

It is difficult to do a ramp-style ejection system in a shotgun because the carrier will be rising at the same time as the ramp will be required to pop out (I don't see how you could integrate a stationary ramp into the design and still be practical). Perhaps you could do a variant of Boltsniper's SCAR-N with the magazine well facing to the side of the receiver (like an FG42) or on top (like a Bren or a Vickers LMG) and have the shells fall out of the bottom of the receiver, but you would need a spring-loaded pad in the chamber to prevent the shell from being pushed back into that vacant space when the bolt retracts.



#121651 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 30 August 2007 - 03:54 PM in Homemades

Right, the PVC shells were from pics in his boltsniper guns sales thread. My mistake. Although his bolt didn't eject or extract shells, because then he could have never had the shell in picture 14 staying seated in the bolt. So I do believe I am still the second (bolt being #1) to create an extraction and ejection system for brass shells.



#135898 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 13 January 2008 - 09:52 PM in Homemades

Damn. Long time, no posts. Got caught up in quite a bit over the holidays.

Rest assured, this project is still in the works, despite over a year in development hell. Since PVC is proving to be difficult to work around a CPVC-shell system, I am exploring new options for making the body of the gun. This includes resin-casting and using vacuum-forming for molds. I want this gun to have a nice, finished feel to it, rather than produce a model that looks and performs like crap.

Also, I will be working on that updated directory. This week is midterms (fun fun), so I'll probably have it around the weekend.



#121536 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 29 August 2007 - 03:00 PM in Homemades

The bolt does work. The main problem is that it has some problematic seals that I intend to fix the next time I start work on this gun (Labor Day weekend), basely around the cam pin slot and one portion in the front of the bolt carrier. The unique thing about this design is that the bolt head will always automatically return to its foremost position if nothing is engaging it or preventing it from doing so. I made this improvementfor two reasons: 1) While reading boltsniper's writeups for the SCAR and the FAR, I realized the potential problems from something knocking the bolt head backwards, which would cause in to rotate and not interface with the lugs in front of the chamber. 2) It makes the system more reliable and realistic (although I didn't intend to make it so real-looking and feeling, and it is also a coincidence if it looks at all like the Halo or Halo 2 shotguns), because there is a reduced risk of jamming.

What I do not like about the bolt, though this will not affect its predicted service life unless the problem gets worse, is that it is not completely reliable when the gun is pointed at drastically different angles. Now, I know I won't be using it to aerate my lawn, down crows, or perform the Matrix, but I wouldn't mind some improvement there. Another problem, though I don't know how drastic or insignificant it will become after I install the carrier, is that I will have to move the bolt back and forth one additional time after the mouth of the shell enters the chamber, because there is a tendency for it to rotate sooner than is ideal. I will fix that with a tighter-fitting collar in the bolt carrier, but that will require me to destroy the current one, which is held in place with PVC cement.

Other note:

CH used PVC shells. It is much harder to do the same with brass shells because you are literally using superglue and needle-nose pliers to arrange the moving parts in a case 9/16" in diameter. In fact, the early extractors I had were so prone to breaking I had to coat the entire claw in superglue, let it dry overnight, and then grind down (slowly and carefully) the excess to make it a perfect fit on the shell rims. As for a video, I will try. Please keep in mind that I do not have a video camcorder handy right now, but should I acquire one, I will post the link for the video here. I will also disable comments on YouTube should that become my video host, because I don't want spammers and trolls posting "OMGWTF??/U M4D3 A Fuk1n GuNn th47s 1ll3g4l!!1!!!11!."



#118830 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 08 August 2007 - 01:28 PM in Homemades

Yes, actually. I have most of the assemblies completed right now, and am working on getting the magazine springs into the correct position in the tube so they don't feed a shell halfway. This gun will be done by mid-next week. I also have an obligation to General Cole for his contest on Foam Universe (which is actually not as bad as you make it sound), and that was on the 11th, but the deadline has been extended, so I will take some more time to get the parts working more smoothly. Pics and ranges to follow the completion.

Right now, the only major flaw in the design is the relatively low magazine capacity, but that can be improved later by replacing the magazine tube with a longer one. Home Depot only had four of the correct springs, so the most is going to be a four-shot capacity. Also, the extraction/ejection system has a tendency to jam about 1/3 of the time, and the extractor's lip is prone to snapping.



#98287 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 14 January 2007 - 08:05 PM in Homemades

Posted Image

The tip is a nail, the body is a cut-down tube from a Bic pen (with hole cut in black end cap), the two springs are from some spare pens, and the springs are threaded onto a second nail. The heads of the nails are touching, and the blue cap is the cut-down base from a blue wall anchor (like the kind used for nails) with the side tabs, base rim, and fluted tip removed.


What's there pretty much explains everything. What it is is a pen tube from a Bic pen with a hole drilled in the black end cap for the tip of a nail, then two nails placed with their heads touching were dropped into the tube so that the shaft of one nail protruded completely from the cap. Springs were threaded onto the second nail (the one not protruding from the cap), and a nail wall anchor was cut down and used as a cap for the back so that the shaft of the second nail could protrude from the wall anchor when the first nail was forced back into the pen tube by a shell.

I have since put the idea aside in hopes that a simple nail and spring put in between the layers of the bolt will be enough to eject the shells. If I can test this new "design," I will post the results and how effective of a system it is.



#107001 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 21 May 2007 - 08:22 PM in Homemades

There are a few problems with the overall design of that ejector, but the concept is pretty much correct. The spring-loaded piece (the actual ejector) that pushes the shell out would need to be only on the side opposit the ejection port. Otherwise, the system will push the shell forward and not out. There also needs to be a clamp, in this case just a small wedge of a smaller-diameter brass, fastened to the side of the bolt where the ejection port is. What happens is this clamp, or "lip," latches on to the rim of the shell, where the smaller-diameter brass is showing, and the shell is held in place. The ejector is depressed by the shell being caught in this lip, and will not be able to move the chambered shell. Once the bolt moves backward, and past the ejection port, the ejector no longer has anything blocking the shell from exiting, and the spring will throw the shell out of the opening when this point is reached. Picture from Boltsniper's FAR page:

Posted Image



#97815 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 06 January 2007 - 06:09 PM in Homemades

I have decided to scrap the original pump-action design in favor of a bolt-action shotgun design (these do exist), for both ease of manufacture and a proof-of-concept testbed in case I should later build a variant that uses a pump. The bolt handle will be connected directly to the cam pin that operates the rotating bolt head, which will make for a simpler action. Besides, I have a preference for bolt-action guns that was restored again after I got my Longshot.



#96168 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 09 December 2006 - 04:57 PM in Homemades

Let's all take a minute and thank God that Meaker VI finally found the pic we were looking for. Now that that missing piece has been "revealed," it should be a simple matter to incorporate the part into the designs we have. All we have to do is figure out what to make the tab out of and how to attach it, and this project can finally get under way again.

P.S.: Flaming Hilt, your ramp could work, and if it is what you want to use in place of the carrier, go for it.



#96192 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 09 December 2006 - 10:33 PM in Homemades

Commonly Hunted:
I was going to try for 100th post in my own forum, but that would merit reprocussions from Piney for double-posting. (Although this is technically the 100th reply.)

Back on topic:
I am working on a scale-dimension draft of my blueprints on a 2-D CAD program, so I will probably be done with almost all of my design work and detailing by the 17th, accounting for the time I need to take out for homework, school, and studying. I hope to see blueprints from as many other contributors to this topic as possible, so we can all build different, yet hopefully effective, models.



#96251 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 10 December 2006 - 08:36 PM in Homemades

I was going to use an extractor similar to what boltsniper used on his SCAR-N. I posted a pic of a prototype self-contained ejector a while back, probably on the top of the 6th page, and I was going to use a more powerful and updated prototype of that for the actual shell ejection system. (The new ejector can propel itself 85 cm far when released from 50cm high and parallel to the ground.) If you are using a rotating bolt lockup like I am, you'll also have to make sure that you align the ejector and extractor to be parallel to each other and the port on the side of the gun where the empty brass can be released. I also might go searching for some brass and PVC sizes next weekend at the town Lowe's. Let's hope I fand something so I can get back to you.



#96133 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 08 December 2006 - 08:30 PM in Homemades

I like the carrier assembly for my shotty better, especially because I already know how it would work and how I would integrate it into my design. I also like the tube mag below the barrel because it makes the design feel more like a conventional shotgun. This isn't to discredit any of your designs, because I think that they would work fine if you planned out all of the systems, but I seem to like sticking with my own plan. (I am also going to begin the carrier assembly this weekend, since I actually have some free time from all of my school projects.)

P.S.: I did see the Boomstick on the homemades directory.



#96088 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 07 December 2006 - 07:58 PM in Homemades

You ran into one of the same problems I did with the tube mag: how to stop the rest of the shells from popping out of the tube once one shell was already in the the carrier/chamber. I am still working on the solution, but the pics you put up here helped greatly with breaking the entire design down into more specific regions and systems.



#95549 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 29 November 2006 - 06:55 PM in Homemades

To shorten the gun, I was going to borrow another design from Boltsniper and use the stock's horizontal tube to house the plunger and spring. This way the gun can still be manageable in size, but not suffer any range or reliability issues. I plan to make the gun about 76cm (~30 in.) long, but I may need to lengthen it a little to make room for more shells in the magazine. Right now I can fit about 5 shells with that lenght, and I was hoping for 6-8 to make it more practical.



#95621 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 30 November 2006 - 09:15 PM in Homemades

I was also going to wait until around the beginning of summer to assemble this thing (for the same reasons you are). That doesn't mean that I won't try to make models or parts until then, but I wanted to use my spare time now to get the design as close to perfect as possible before I get down to the actual fabrication and whatnot. With you all contributing, it shouldn't be difficult to work out an effective system.



#95687 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 01 December 2006 - 05:56 PM in Homemades

Speaking of prototypes, I made a crude model of the shell ejection system. It is a little bulky and long, but it's just in the design phase.

Posted Image

The tip is a nail, the body is a cut-down tube from a Bic pen (with hole cut in black end cap), the two springs are from some spare pens, and the springs are threaded onto a second nail. The heads of the nails are touching, and the blue cap is the cut-down base from a blue wall anchor (like the kind used for nails) with the side tabs, base rim, and fluted tip removed.

Overall, the ejector has enough power to put small holes in pizza boxes when fully depressed. Suggestions or comments, anyone?

P.S.: Ronster, I hope to see a successful model of the carrier so we can actually prove the concept in scale for a nerf gun.



#96286 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 11 December 2006 - 04:32 PM in Homemades

I'm following the K.I.S.S. principle as much as I can. That way I can build confidence for more advanced stuff later.


It looks like you might need the confidence if you're not using a bolt. You'll need to be able to get the seal to be prefect with each shell and every reload if this concept is going to work. Another thing is that since you don't have a bolt, you can't have any kind of lockup that will ensure a seal until the grip is pulled back. Your design seems like you would have to hold the grip forward at all times for any seal between the shell, nozzle, and chamber walls to be formed. That's just too much work, and it makes it more realistic and practical to have a lockup and bolt. However, if you can get a model to work, then share how you did it. There could be some useful concepts in it for all of us.



#96288 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 11 December 2006 - 04:47 PM in Homemades

It may be more work, but I think that the bolt is worth it compared to all of the work that you're going to have to do with the seals. Then again, the ideas that you have to solve the problems are creative, and should work if implemented properly. When you decide, tell us and maybe we can all contribute to the design.

Also, I am probably going to go hunting for some parts as well, hopefully within the week.



#96629 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 15 December 2006 - 07:15 PM in Homemades

Ronster: I have the lego parts in a box somewhere, but you'll need to explain the white tabs. Are there springs between them, or do they just rotate with the black axle?

Piney:
This will be done. I take my time with this because I, like many of the others who frequent these forums, am not willing to waste money if I know that the design won't work. Once enough of the systems have been worked out, then I will assemble the whole gun. The parts that I know how to make will be under construction by Christmas break, and that much I can promise.



#96982 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 23 December 2006 - 05:01 PM in Homemades

Not bad, Meaker VI. My own work has been delayed until I can find a place that sells cheap brass. I need to make the shells first, and then work from there, since designs of the bolt, mag, and carrier are all dependant on the shell size. As for springs, I think Commonly Hunted used the spring out of one of those cheap plastic Bic mechanical pencils, but then again, I think his shells were PVC, so I'll need something more powerful...



#97395 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 30 December 2006 - 12:04 AM in Homemades

Also, if anyone knows what I should look for in a spring: I went to my local hardware store (Not Home Depot), and they have every kind and size of spring I could ever use, I think. I'm not sure if they sell ones that would work well for nerf; how tough should they be? For example, should I be able to compress them nearly fully with my hands or is it enough to just be able to budge them?


That depends. A plunger spring should be hand-compressable, otherwise you'll never be able to cock the gun. A mag spring should be even weaker. A spiral-notebook coil like Ronster suggested works fine for just darts, might work okay for PVC shells, and probably won't work so well for brass like I am going to use.



#96613 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 15 December 2006 - 03:55 PM in Homemades

Just curious...

Anyone set a timeline to actually get something done?


All I've seen so far are some drawings, some pictures of shotguns clipped from varying websites, some gibberish from howstuffoworks.com, and a whole lot of idea tossing, excuses for delays (school, etc.), and basically kind of running in circles on something that hasn't gone past a pen tube, spring, and nail.


It would just be nice to see something beyond posts after almost two months of chatting. Talio is back, so I won't even speculate on his opinion of such matters.



-Piney-


I was actually going out to get some materials for the plunger and bolt this weekend, and hopefully build the carrier assembly by Christmas break. (That "pen tube" was only a prototype, but it works pretty damn good.)

P.S.: I read the post Talio had on the homepage, and I'm in no hurry to piss him off. Expect something done from me soon...



#96525 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 14 December 2006 - 05:28 PM in Homemades

SHA: I was looking at the picture on that site for a long time while making my design, and the only problem I have now is that my bolt moves into the plunger tube (The plunger and the bolt have the same diameter, like in Bolt's NTS. The Bolt has a seal and the plunger has a seal; the plunger will also be floating, which was something Bolt was considering for the NTS). That makes relations between the bolt and the carrier difficult. My current plan for the carrier is pretty much like the thing Anders posted a few pages back from the buzzbee rifle.


My bolt will also move back into the plunger tube. The bolt will simply push the plunger back into a locked position when the grip is pulled back, since the grip is connected to the bolt.



#96292 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 11 December 2006 - 05:48 PM in Homemades

Orrrrrrrr, you could not spend billions of dollars on something thats not going to work and buy a nerf gun.

-Butt


Who said these won't work or that they're going to be that expensive? I haven't seen you contribute anything, and unless you're going to, then keep comments like this out of my thread. We get homemades to work by trying, and there's proof in the works of boltsniper and Carbon, and I've never seen anyone tell them that they should give up.



#96352 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 12 December 2006 - 07:16 PM in Homemades

I'm following everything about the bolt and the mag tube on your design, Meaker VI, but the carrier description is kind of confusing. However, the pump is not usually directly attached to the carrier, rather the movements of the bolt influence the rising / falling of the carrier.

As for my own plans, I will probably copy the design for the carrier / bolt arrangement found here at howstuffworks.com. However, I will replace all of the bolt and firing pin arrangements with a plunger and bolt of boltsniper's design. I will also have a stock that is in line with the barrel to house the plunger and plunger tube as well. The shells will probably hold micro stefans and be made of 17/32" brass like boltsniper's as well.



#98096 Nerf Shotgun

Posted by SHADOW HUNTER ALPHA on 10 January 2007 - 08:07 PM in Homemades

Great work, Meaker VI. For what it is, the prototype is a good guide for testing all of the systems that you'll use to build the actual version of the gun. However, I'd like to see the carrier group, or at least as much of it as possible, in another pic so we can get an idea of what you are doing to make the system work.