Now on to making the sheath. The type of sheath I will be making is called a Randall Style sheath. This type of sheath was made popular by Randall knives and made by Sullivan's holster shop. As evidenced by the number of people who make and use these type of sheaths the design is a good one.
I will be making a sheath for a Scrapyard Regulator.
The first thing I do is trace the outline of the knife on a large piece of graph paper. Once this is done I decide the dimensions and design of the sheath.
Once I have laid out the sheath, I cut the pattern out in stages and transfer the pattern to a suitable stiff media. Poster board, manila folders, old cereal boxes, or pretty much any thin type of cardboard will work.
Then I cut out my patterns and trace them on my leather. When tracing your parts there are a couple of things to keep in mind. One, I always lay everything out on the back side of the leather. Two, be sure that you pattern is oriented with the proper side facing up. Having your pattern upside down is a surefire way to make a left handed sheath when you were trying to make a right handed one.
Once the parts are laid out I cut them out using my utility knife.
The pieces, from top to bottom are
Back piece, which will be folded over to form the belt loop.
Spacer/Front piece, which gives the guard of the knife a place to rest, keeps the sheath nice and flat, and make for a sturdier sheath IMO. The spacer piece is the exact same shape as the front piece.
Welt, the welt is sewn into the sheath to protect the stitching form the edge of the blade.