MYOG version of Exos/Arc Blast frame?

I want to build a similar pack. My first thought was it could be 3D printed. Though I'm not sure what material would be good to use. I'm actually going to start building my first prototypes very soon.

3 D printing
You may want to read this article first :
http://gizmodo.com/why-3d-printing-is-overhyped-i-should-know-i-do-it-fo-508176750

Look at the pictures of the Arc Blast on the ZPacks website–it basically *is* a MYOG design (i.e., it appears there's nothing there that can't be done with off-the-shelf parts and available CF sections).

Re: 3D printing a frame. I use 3D printers (desktop models) as part of my job. Printing a frame would require a printer with a relatively huge build volume. Print time would be significant, and prob. cost-prohibitive. Plus, I expect there would be strength issues, esp. with the fused filament method that's commonly used to print plastics.

If you wanted to use digital fabrication to make a backpack frame, there's better methods than 3D printing. None would be super practical for a one-off project, but still might be interesting to try if you had the time and equipment.

Edit to add: if you had a printer that printed nylon or another strong plastic, or could reproduce printed parts in aluminum (via lost wax casting, for example), 3D printing *might* be a good way to make custom connectors and other components for a CF-based frame. But printing the whole frame will be problematic, for reasons above.

I made a rough diy version of the arc blast frame. The CF stays are available from online metals. The linelocks and mesh are available from many suppliers. After getting a back panel that flexed, I have a great appreciation for zpacks. I think it would take several sewing attempts to make everything come out right. There are a lot of moving parts and forces at work. You would have to do some trial and error to make all the overlaps just right so it is strong and tensioned correctly. It can be done, it will just take time. (more time than I was willing to give it right now), But you certainly don't need a 3-D printer. A 60 year old Singer and patience will do…

The arc blast frame is very simple, and as mentioned above can be duplicated using standard items. The only hard bit is the bar joints.
Just out of interest I have made quite a complex frame by laying up carbon fibre tape. The aim was to improve comfort for heavier loads than the arc blast is designed for.Flexibility was required in certain directions, but not others, controlled by the thickness and width of the members, and their shape. Seemed to work, but a slow, messy business. Definitely not for mass production.