Thanks to Justin for demonstrating this Instructable and for drafting the dxf file.
"Submitted by Ace Monster Toys Hackerspace in Oakland, CA for the Instructables Sponsorship Program"
Step 1: Tools & Materials
*Leather -- Recommend: thin leather 2 to 4 oz weight, or 1.5mm to 3mm thickness
Vegetable tanned leather works best, but each leather cuts differently.
Do not expect consistent results across different kinds of leather.
Make sure to do a few test runs to make sure you're cutting successfully.
*Needless – upholstery needles with blunted tips work best. For example something like this.
*Thread – a heavy weight waxed works best such as this one
*lighter or soldering iron
*thimble (optional if you've got tough fingers)
*the design template .dxf file (attached to this instructable)
*a laser cutter
*an awesome hat (well, not really.... but it seemed to help Justin)
Step 2: Laser Cut The Leather
Step 3: Clean Up The Leather and Prepare For Stitching
It is also important to ensure that all the holes have been cut completely. Use the needle heads to clear any remaining leather bits from the holes.
Finally, if there are any rough edges from the laser cutter, you can trim them off with the scissors.
Step 4: Sewing The Case And Finishing Up
We won't reproduce it here, but there are many guides for threading needles and sewing a saddle stitch, such as this one here.
After saddle stitching all the way around the case, back-stitch three or four holes to ensure the stitching will not unravel.
To finish off, tie a knot with the two ends of the thread and snip the ends with scissors.
Finally, use a lighter or soldering iron and melt the thread in to place. Press down on the thread with your finger (or using a thimble) when it is still a bit hot. This will ensure it does not unravel at all.
There you have it! Enjoy your card case!