66 replies to this topic

[Denaeron 12]

Micros.

[CaptainSlug]

Well, now that that is decided I just have to wait until I can order the plastic tubing and the spring.

[CaptainSlug]

Material cost for this gun seems to be around $25 to $30 and I'll be ordering supplies tomorrow afternoon.

Edit: everything is ordered. I just need to start making cut template sheets.

Edited by CaptainSlug, 30 March 2006 - 05:31 AM.

[CaptainSlug]

I've been wanting to experiment with printing mathematically accurate cutting templates using sticker paper to make cutting and drill parts precisely an easier process. So since the entire gun is made in CAD I made a sheet using all of the part sketches compiled into 10x7" printable blocks.


And I have three more sheets for the drum and clip parts.

[GeneralPrimevil]

That looks like it'll turn out great.

So I take it you might be using a bandsaw and scroll saw for the sheet components, right?

[RaZeR ShArP]

This is possibly the best Idea I have recently seen. I hope this works out. If you decide to produce a few, I'll buy one.

[CaptainSlug]

So I take it you might be using a bandsaw and scroll saw for the sheet components, right?

Yep pretty much. None of the interacting pieces are really square in dimension so I can't use the table saw for anything except cutting the tubing to length. The bandsaw will be invaluable for precisely trimming the smaller pieces.
I'll try to make a detailed assembly write-up as I go along.

Edited by CaptainSlug, 31 March 2006 - 12:17 PM.

[CaptainSlug]

Still waiting for springs to come in the mail.
I'm currently thinking about dumping the drum magazine in favor of the 10-round straight clips. I would however like opinions on this.

The straight magazines could be made much more compact if the gun doesn't need to support the drum magazine.

Edited by CaptainSlug, 03 April 2006 - 07:28 AM.

[murakumo32]

Well the Japanese used those types of clips in WWII and look where it got them...Actually, the failure was in the way the gun was designed and maintained.
Anyway, the point is that i'm in favor of the drum, but the clip may be better if the drum is really heavy. It also depends on have much they each weigh. The weight:darts ratio is crucial (really? I don't know)
My money is on the drum.

Edited by murakumo32, 09 April 2006 - 01:41 PM.

[CaptainSlug]

I don't think weight will be a deciding factor since PETG weighs next to nothing and we're only taking about 40 grams worth of darts.
Maybe I shouldn't worry about the size of the clips so much.

[southpaw]

That design is really cool. I need to learn how to use that stuff. That gun looks like the AUG i think its called (someone probably already mentioned that but i didn't feel like reading the 4 pages. Anywho, I did something similar but very much more ghetto awhile back. It was a semi-auto pistol that was very close to working.

It's clip system is much like your stairstep method. I used gravity which probably wasn't the best idea. The rails are nails (poet and didn't know it).

Edited by southpaw, 03 April 2006 - 10:13 AM.

[CaptainSlug]

Okay, I wasn't happy with the large number of small parts that the previous design was going to require and I was wary of using the pulley system for advancing the plunger. I decided to start the gun over from scratch but keep the same functional requirements and main parts in mind. Here's what I have after a few hours of work.

The front foregrip and stock are foldable and the forward barrel and it's mount are also removable. The clip locking tooth and advancing mechanism are now the same part. This reduces the part count and reduces the mechanism so that it's only interacting with one side of the clip. This makes it easier for either style of clip to be removed.

The grip, trigger, and action pin are stationary. The side covers on the body of the gun slide backwards to prime the plunger.
The folding stock can be strapped to the user's shoulder so that the weapon can be primed by simply extending forward the arm the gun is held in by 6 inches. Returning to the normal holding distance returns the side covers to their original position, which advances the magazine by one round.

When the foregrip and stock are folded and the forward barrel are removed the total length of the gun is only 15 inches.

Edited by CaptainSlug, 09 April 2006 - 11:18 AM.

[murakumo32]

Excuse my profound language, BUT THAT IS THE SHIT!!!
(Sorry for such a worthless post...)

[CaptainSlug]

Atleast your enthusiasm is appreciated.
I'll get around to making to making this after CShG is working or the semester is over (whichever comes first).

[lt spen]

this is one sick gun i can wait to see it completed

[ompa]

Fix your grammer. It's an insult to Slug's thread to not use proper capitalization and comprehensible grammar.

And for the love of all things holy don't raise threads like this from the dead if you don't have anything useful to contribute.

~ompa

[CaptainSlug]

Yeah, I won't be able to get back to this project for atleast a few more weeks.