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Validation & fab

Drill file

Tells the fab where to drill holes and what diameter.

How it looks

Real geometry: every CORE3588 hole, placed from our board file
10 mm
Every hole in CORE3588, placed from the board file (dots enlarged so they show). Grey: 508 via holes of 0.2 and 0.3 mm. Amber: the 19 bigger holes for header pins, the USB-C connector shell, and mounting screws.
Real data: our drill file, exported by kicad-cli
T1C0.200tool 1: 0.20 mm drillT2C0.300tool 2: 0.30 mm drillT2pick up tool 2, then drill at:X118.856Y-44.687X120.89Y-43.96...plated: 519 holes unplated: 8 holes
Lines from CORE3588's own drill file. The two positions are the two vias shown on the via card. (The fab file counts y downwards as negative.)

How it works

T1 = 0.2 mm T2 = 0.3 mm T4 = 1.1 mm ...drill every 0.3 mm hole, then change bitplated holes and unplated holes come as two filesTHE BOARD FROM ABOVE: ONLY THE HOLES

Where it fits

The drill file travels with the Gerber files to the fab. Every via and every through-hole pin appears in it; so do the screw holes.

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