Is it possible to see the "square" rail ?
Is it possible to see the "square" rail ?
any pics? what has changed? what kind of testing has been done?
could you use a cut down rt sear pin and make those wing things smaller.
I have one of each and I will be extensively testing them. I can tell you that each rail Weighs about 1/2 oz
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1/2 oz is crazy light. That's awesome.
If you've got a boner for threaded sear pins, you could possibly use thread inserts.
The simplest option is to undersize the hole and press-fit the sear pin in. It's just a 1/8" pin.
The un-fun part is the tolerances on the 3d printed hole. 3d printing smallish holes accurately and consistently can be kind of a pain.
So the in-between is to oversize part of the hole for an easily sourced bearing/bushing -- adapt 1/4" to 1/8". And just hold the sear pin in with e-clips. Yeah, you have e-clips showing, but... come on, you're rocking a plastic rail.
No wings, either case.
Last edited by GoatBoy; 04-21-2014 at 07:23 PM.
"Accuracy by aiming."
Definitely not on the A-Team.
I have a question about other printed items. Working on a pump build at the moment, and I'm scrambling to find a hitman mod for it. The thought struck me... Can such a thing be printed?
Here's a rough sketch of what I came up with:
I have a feeling what I've sketched up probably won't last long; the two small holes where it mounts to the pump plate are probably going to break through, right? The cutaway between these two holes is necessary because of the pump rod that is between (and slightly below) them. BTW, the overall length is 2", width is 1" at the top tapering to 0.5" on the handle and thickness varies from 0.25" where it mounts down to 0.125" on the handle.
Thoughts? Can it be done KNM?
That's printable, but it won't be strong enough to use as a pump handle.
The best possibility would be to use 3d printing for the tricky geometries, then augment with off-the-shelf parts for strength. So 3d printed parts + off the shelf CF rods = KABLAM. Personally for anything pump rod/handle related, I'd look at some actual linear bearings and build around those if possible.
Back to rail stuff -- customization is where having a rail in the first place makes any sense at all. The rail has always been the biggest untapped customization potential of the automag. Aside from machining issues, it really should have been folded together with the grip frame.
So, for instance, if you wanted picatinny on your rail, or an integrated Gopro mount, or a plain 1/4-20 hole, or a particular foregrip setup, you could customize it into the rail. Maybe you like having "wings", maybe you don't. Maybe you want a cocker beavertail on the back of your gun for no good reason whatsoever. Rail is the place to do it. (Not the body. *Cough*) If not, then get rid of the rail altogether.
The neat part is that this can all just be code. Adding/removing options can be as simple as setting/clearing 1's and 0's in a parameterized file. Having more options is probably a nightmare for classic manufacturing, but it's totally doable if you're 3d printing them. And it would be way more "custom" than, well, what's normally considered custom.
* again small tweeking but i could get you where you want to be.
i am packing up to move into a new house we just purchased,
so the print shop will be down for a while.
ill hit this thread up with a post when im back, or ill hitup my printshop thread.
Last edited by knownothingmags; 05-15-2014 at 02:57 PM.
That part is designed for a 1" barrel anyways (i.e. the thick part on autococker barrels where either pump arms or old school shrouds used to go), so a CF barrel typically isn't going to be thick enough anyways. I'd thicken the barrel up with whatever, and maybe cover that with shrink wrap or something to tidy it up.
Say, do you have black filament? You know how I likes my black...
Goatboy please design & print drum magazine for .68 paint 20 rounds or so
Got another crazy printing idea that may just work. If you pay attention to my blabbering, you may know that I just "finished" a Z body pump mag. By finished I mean made it functional, and it's a whole hell of a lot of fun.
An idea struck me. What about making a "classic feed" for where the powertube attaches. The body uses as a dovetailed, removable powerfeed setup. If I can go with a classic feed, I can easily bolt on a very low profile stick feed. Biggest problem is that I'm drawing up a product with a market of one buyer (I think). Then again, I thought 3D printing was all about the capacity to do one offs and rapid prototypes?
So I took to my free CAD software and came up with this. I'm pretty sure this is a printable part, no?
Z Body Classic Feed.png
I also made one with a fully revolved and extruded 12 round tube, but that might not be possible to print because of dimensions and geometry? See below.
Z Bod Feed 2.png
And one last crazy idea. Cram and jam, with an tapered cram receiver. It's cramming on a 10° angle up and out.
Z Cram Jam.png
Last edited by zulubravo44; 05-29-2014 at 05:23 PM.