Experiments and failures with deep inlays

So, I copied all the depth settings from the tutorial exactly. Even switching to metric to remove any possibility of conversion error on my part…

Female:

Male:

I even copied all the intermediary toolpath depths for the plug.

I’m no rocket surgeon, but the video was laid out with clear explanations that made sense so I figured I would stick to the examples and remove my own failing from the mix.. the only material difference that I can think of is I used a 20* bit instead of 15*, because thats what I have. I can’t see why that would make a difference though.