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That is very ambitious for a milled circuit board. You need a very fine bit. The height varies. The bottom left of the square IC is too deep and the top right is too shallow. There are devices that you can use on engravers to keep the depth constant, which might help.
https://www.2linc.com/product/control-engraving-depth-standard/#:~:text=The Depth Control Engraving System limits exposure of the Engraving,Size Spring Loaded Engraving Tools.
It is really very quick and cheap to get a printed circuit board made for prototypes, and that can have solder resist, through plated holes and even multiple layers. I've use JLCPCB and they are very good for that.
You'll need one or more of the following...View attachment 147495for example on this am using a spiral carbide engraving bit of 0.1mm 10 degree but some pad are well done but other copper are being removed how can i collect them