Cutting gear teeth using a shaper - GIF

[Frank S]

Is it just my eyes of is the edge of the tooth a bit wavy? The space between the teeth also looks too narrow. Perhaps this is a rough cutting process to finish later?




There has to be some serious pressure on that cutter when it gets to full depth.

You are correct the sides are wavy because they will be finish ground in the final process.
the cutter only slices away small amounts each pass the gear is rotated left and right in decreasing amounts as the cut deepens until the cut profile is nearly complete