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R2 底板：按用户布局重布风扇窗口 + L1 走廊重开 + 位号丝印重排

浏览代码 
布线（窗口整体重布，已下发）：
- 拆窗口内 43 段（用户手布的那批，用户选「拆掉重来」），补 139 段 / 7 孔，
  GND 回流孔 10 个；fan_check 对板上真实快照逐项净距达标（含「新孔 vs 内层线」）。
- ⛔ 根因：pcb_base.PD_L1 里的 L1 走廊是按**旧摆位**开的（注释坐标全是旧的），
  用户重摆后与件对不上 ⇒ 四条长途网必然布不通。重开六条走廊后未完成 4 → 2。
  走廊必须盖住焊盘正上方，只盖沿途不行。断面：几何 11.80 / 铺铜后实测 9.82（要 8.0）。
- 与拆线前逐网对比：没引入任何新的连通性问题（GND 未接 58→48、+3V3 2→0、
  两路 TACH 2/1→0、+12V 一字不差）。

定版：板上铜以**用户自己布好的那版**为准，不再改动。

丝印（silk_base.py，已下发并读回核对 150/150）：
- 压焊盘 128→4、压过孔 48→8、越框 8→3、互相重叠 34 对→0；字号不变。
- 三条坑：rotation 是度且不归一化（900=180°）；别拿「本体≥5mm」当保留白名单
  （会豁免掉 R9A/D3/U13 这些该重排的件）；「离本体」必须设硬上限 + 降级策略。

新工具：silk_base.py（丝印重排）、l1_section.py（L1 12V 主块逐 y 断面核算）、
fan_rip.py（按窗口拆线，拆前后比对全板线/孔总数防连带删除）。

Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_0168Bu6SEx3cXXCJLkdnE6zB
这个提交包含在：
zhou yang
2026-09-12 12:02:32 +08:00
共同撰写人 Claude Opus 5
父节点 51b570a59f
当前提交 312089326e
共修改 15 个文件，包含 5053 行新增和 1139 行删除
下载 Patch 文件 下载 Diff 文件 展开所有文件 折叠所有文件
.claude/r2/_base_place_live.json
+321 -165
查看文件
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