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M3 Flathead screw hole
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terry8345 2 years ago
Is it possible to define a screw hole in the PCB that is countersink for a M3 screw?
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andyfierman 2 years ago
No. Holes in a PCB are essentially just cylinders drilled perpenficulsr to the surface of the board right through the PCB material by a vertical drill. There is no way to specify that a larger diameter drill can be applied to the same hole but to a lesser depth such as is required to drill a countersunk hole. You can define an M3 clearance hole but you cannot define any countersinking around the hole. That said you may be able to create something like a stepped hole by a milling process but you would need to contact the PCB manufacturer directly and EasyEDA Std has no particular features to support this.
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