Being a fan of Clint Eastwood westerns , I wanted to do a stitch like that , too .
It is in his gunbelt in most , if not all westerns .
That Luke Hatley - post gave me an idea and I did a few tries succeeding at last .
You need an arc ; height is equal of the height of wished pattern .
So , In my case I used an arc 1" high and 4,5" length ( cut that from used pistol target using the arc from 8 - ring ) .
Then drew two lines 1" apart .
Drew set of arcs and when starting the other side , I used a square to get the points of a "diamond" in a vertically straight line .
If the points are not aligned , the pattern does not look right .
And after drawing... there I had my wished stitching pattern .
Now a first belt having a fancy stitch like that is being stitched in a harness racing equipment factory in my HT .
They have machines heavy enough for that .
JR