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Messages - TwoWayTrauma

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Materials science / Re: Wet weather bag
« on: July 25, 2018, 09:13:10 AM »
Thanks for the input, I will check it out.

Materials science / Wet weather bag
« on: July 23, 2018, 05:40:40 PM »
First post in a long time...

I'm helping a coworker with a project idea that he came up with. He wants to design an improved wet weather bag, that will be an improvement from the US Army wet weather bag.

A lot of the improvements focus on design instead of material. I made him a prototype out of 500D cordura, and its water resistant. but not waterproof. 

What would be a good material for the final prototype? Does anyone know what the current wet weather bags are made of? I have one, just don't know the name of the fabric.  I'd also be interested in knowing if there are any suppliers of fabric similar to the one that SeaLine uses for their bags.

Or if anyone has any suggestions in general, like possibly a way to spray a sealant on cordura to make it waterproof...

Any help, or criticism, is appreciated.


Welcome to the mix! 

Tutorials and techniques / Re: In search of a (boxy) 3D corner tutorial
« on: December 22, 2017, 09:32:13 PM »
^very true. You may also want to look up the old posts where people shared the old diytactical tutorials.

Tutorials and techniques / Re: In search of a (boxy) 3D corner tutorial
« on: December 22, 2017, 07:17:06 PM »
This one is pretty good.

Everything else / Re: grocery bags
« on: November 08, 2017, 03:42:01 PM »
Looks good. I've made a couple of those, they come in handy and would make great gifts.


Vendors and sources / Re: Kevlar cord source
« on: September 27, 2017, 02:34:15 PM »
Thanks for the input!  I'll keep you posted if anything comes out of this.


Vendors and sources / Kevlar cord source
« on: September 23, 2017, 01:02:47 PM »
Does anyone have a source for braided kevlar cord?  I'm looking for 3 or 3.5 mm diameter. My plan is to terminate it with metal ferrurls to make boot laces. I've been able to find it in the original yellow color, but need to find it in a color similar to 498 or 499 brown.


Introductions / Re: Howdoo from Cumbria
« on: September 15, 2017, 12:40:11 PM »
Welcome to the mix.


Tutorials and techniques / Re: Cordura Pouch Flap construction technique
« on: September 03, 2017, 09:47:41 PM »
Good question. I trace the outline on the wrong side of the fabric with chalk, and cut a generous seam allowance. I cut another piece the same shape, and sew just inside the chalk with the wrong sides out. I usually leave a half inch unsewn at the bottom edge to fold in.

I then trim the seam to about a 3/8 inch, and cut the radius off the corners. I then fold it right side out, push out the corners, roll the edge, and told the bottom in.

Then I top stitch very close to the edge. Rolling with the fingers helps.

You can see an example of rolling and top stitching of you skip to about 3:22 in the video below. It's a dump pouch, not a flap, but the technique is similar.

Concept, design, and engineering / Re: Buttonhole stitching drainage
« on: August 29, 2017, 10:39:04 AM »
Looks like an innovative solution. I might try it with a buttonhole attachment sometime.

In place of a laser cutter, what about using an empty .223 casing that you heat with a lighter to cut a circular hole that is heat sealed?

Thanks for the input. I'm not sure if itbwas the cinch or the bvs. I will check and find out.

Concept, design, and engineering / Pack over body armor - a gap to fill
« on: August 08, 2017, 07:08:27 PM »
So, I figured I would throw this I. The concept, design, and engineering portion.

I am looking to make (or find an existing) pack that works well with the Crye DOC and JPC.  Customer is having problems with the current mystery ranch packs, as the shoulder straps are barely long enough and they tent to ride on the outside of the shoulder straps on the plate carrier, which pinches against the front of the shoulder and accelerates fatigue.

I'm thinking something wide with minimal bulk and padding would be best. Has anyone made anything like this, or know of anything designed for It?

I'm trying to stay away from a pack mounted to the carrier.

Any input is appreciated.


Asset exchange / Re: WTB: 2" Floating Bar Buckle w/Tab
« on: July 17, 2017, 04:58:27 PM »
I've used that austri alpine buckle before. It's lighter and stronger than the usual riggers belt slide bat adapter, and it's lower profile. They used to be like 3.50.

Tutorials and techniques / Re: Hi from Mongolia
« on: July 08, 2017, 08:30:46 AM »
I should caveat the previous post:  I usually use cordura, which is what I was comparing the strength to 

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