@codebyjeff You'll find this page enlightening:
https://writingcuneiform.blogspot.com/2012/10/5-making-basic-wedges.htmlThey used only 1 stylus to make all the wedges but they could change orientation and pressure to make different types of them.
The triangular beginning of the wedges is similar to ending of strokes in Kanjis written with a brush. This is still visible in Japanese fonts with Mincho style where strokes end with a little upward triangle.
