add M3 footprint with 0.6mm clearance

oshwabadge2020 / Badge-PCB

Open Hardware Summit 2020 wrist-watch badge

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Closed pdp7 closed 4 years ago

pdp7 commented 4 years ago

add M3 footprint to the four corners of badge. Footprint is 2.9MM NPTH for M3 fp with 0.6mm clearance Screenshot from 2020-02-09 01-28-39

pdp7 commented 4 years ago

@acamilo @mwelling what do you think of this?