PCB Layout Conflict

flux

I’ll open the attached text to see what you want done, then I’ll summarize or act based on its contents.
Created a project doc

Pinch Breakout REV A1 — Project Specification

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Breadboard adapter for the Moddo pinch connector/header pattern. The board adapts a central 2×8, 1.27 mm pitch male header to surrounding 2....

flux

I created the project spec and renamed the project. Next I’m adding the through-hole headers and wiring the requested net map.

flux

I’m blocked by a mechanical conflict in the pasted placement map: the left-column bottom hole is D5 at X=0, Y=0, while the bottom-row left hole is RST at the same X=0, Y=0, so two different nets occupy the same drill hole.
Completed so far:
To continue, I need one clarification: should the bottom row start at X=2.54 mm instead of X=0 so it does not overlap the left column, or is one of the listed corner nets incorrect?
Offset bottom row
Corner net correction
Fix overlap directly
Recheck after fix
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Pinch Breakout REV A1 — Project Specification
Purpose
Breadboard adapter for the Moddo pinch connector/header pattern. The board adapts a central 2×8, 1.27 mm pitch male header to surrounding 2.54 mm through-hole breakout headers.
Mechanical Requirements
  • Board outline: 18 mm × 15 mm rectangle.
  • PCB stackup: 2 layers.
  • Mounting/assembly: all parts are through-hole; every pad must have a drill, no SMD pads.
  • Copper routing: 0.3 mm traces.
  • Bottom copper: GND pour.
  • Top silkscreen: net name at each breakout hole plus title text pinch Breakout / REV A1.
Parts
  • H1: male header, 2×8, 1.27 mm pitch; drill Ø0.65 mm, pad Ø1.0 mm.
  • J2, J3: male header, 1×6, 2.54 mm pitch; drill Ø1.0 mm, pad Ø1.7 mm.
  • J4: male header, 1×5, 2.54 mm pitch; drill Ø1.0 mm, pad Ø1.7 mm.
H1 Netlist

Table

H1 PinNet
13V3
2D0_SCL
3VBUS
4D1_SDA
5D7_MOSI
6D2
7D8_MISO
8D3
9D9_SCK
10D4
11D10_SS
12RST
13GND
14D5_TX1
15D11_DAC0
16D6_RX1
Breakout Placement Map
Coordinate datum: origin is the bottom-left breakout hole. 2.54 mm grid.
  • Left column, X = 0, bottom → top: D5, D6, D11, GND, D10, D9.
  • Right column, X = 15.24 mm, bottom → top: D1, D0, 3V3, VBUS, D7, D8.
  • Bottom row, Y = 0, left → right: RST, D4, GND, D3, D2.
  • H1 centered at (7.62 mm, ~4.75 mm), rows horizontal, pin 1 top-right; top row right → left: 1, 3, 5, …, 15.
Validation Criteria
  • All listed nets connect one H1 pin to the corresponding 2.54 mm breakout hole; GND connects to both breakout GND holes.
  • All component pads are plated through-hole with the specified drill and pad diameters.
  • Board is 18 mm × 15 mm, 2-layer, with 0.3 mm routing and a bottom GND pour.
  • No unresolved ERC/DRC issues after routing, or any remaining issues are documented.

  • Purpose

  • Mechanical Requirements

  • Parts

  • H1 Netlist

  • Breakout Placement Map

  • Validation Criteria