Sibbo wrote:
Any idea of the brand name of the mystery fabric ? There are lots of vinyl type fabrics of the kind that are used for truck tarps and "taughtliner" sides . I wonder if that would work? It has a vinyl coating over a fabric base.
Nah, the fabric is a mystery.
And that vinyl from trucks seems a bit too heavy for a domestic machine, but worth a try if you can scare some up.
I have used what I think is called 12oz cotton canvas for a few earlier bags and found my machine handled it pretty well, doing 2 layers easily and up to 4 layers with a bit of coaxing. I think this is the stuff Andy Strapz uses for his Pannierz. It's worth having a look at his website, and look up another Oz mob called Steel Pony.
The roll-top bags I've been making lately use their techniques; that is they are sewn right-side-out, leaving the seams outside but covered with sewn on tape. It makes the whole procedure fairly straightforward as long as you have the forethought to sew on whatever else needs to be there, such as straps.
Charlie
and Brunhilde - 1974 R90/6
Graduate, Wallace and Gromit School of Engineering and Design (Pending)