Improve global project (typos, enforce 80 columns whenever possible, diagrams) and finish 3.1

1 files changed, 980 insertions, 0 deletions

diff --git a/pictures/l-channel.svg b/pictures/l-channel.svg
new file mode 100644
index 0000000..ae0d548
--- /dev/null
+++ b/pictures/l-channel.svg
@@ -0,0 +1,980 @@
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+    <!-- Standard CAD Arrowheads -->
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+       height="6"
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+  <!-- ================================================================= -->
+  <!-- TITLE & HEADER                                                    -->
+  <!-- ================================================================= -->
+  <!-- ================================================================= -->
+  <!-- VIEW 1: ISOMETRIC VIEW (LEFT SIDE)                                -->
+  <!-- ================================================================= -->
+  <!-- ================================================================= -->
+  <!-- VIEW 2: REAR ELEVATION (TOP RIGHT)                                -->
+  <!-- ================================================================= -->
+  <!-- ================================================================= -->
+  <!-- VIEW 3: LEFT WALL ELEVATION (BOTTOM RIGHT)                        -->
+  <!-- ================================================================= -->
+  <!-- ================================================================= -->
+  <!-- TECHNICAL NOTES SUMMARY BOX                                       -->
+  <!-- ================================================================= -->
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+    <text
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+       y="98"
+       text-anchor="middle"
+       fill="#666666"
+       font-size="10px"
+       id="text5"
+       style="fill:#000000;fill-opacity:1">(Showing Inward 90° Flanges &amp; Masked Faces)</text>
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+       points="80,130 260,200 260,420 80,350 "
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+    <text
+       x="257.25986"
+       y="195.81207"
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+       fill="#475569"
+       font-size="11px"
+       font-weight="600"
+       transform="rotate(21)"
+       id="text6"
+       style="fill:#000000;fill-opacity:1">LEFT WALL (PCB Mount)</text>
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+       fill="#f1f5f9"
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+       stroke-width="2"
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+       stroke="#000000"
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+    <line
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+       x2="518"
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+       stroke="#000000"
+       stroke-width="0.75"
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+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <line
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+       y1="363.12396"
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+       marker-end="url(#arrow-end)"
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+       style="marker-start:url(#Triangle);marker-end:url(#marker61)" />
+    <text
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+       y="270"
+       text-anchor="end"
+       fill="#000000"
+       font-size="10px"
+       font-weight="700"
+       id="text37">130.0 mm</text>
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+       y1="172.64999"
+       x2="620"
+       y2="160"
+       stroke="#000000"
+       stroke-width="0.8"
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+    <text
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+       y="158"
+       fill="#000000"
+       font-size="9.5px"
+       font-weight="600"
+       id="text38">BNC Cutout</text>
+    <text
+       x="625"
+       y="169"
+       fill="#555555"
+       font-size="8.5px"
+       id="text39"
+       style="fill:#000000;fill-opacity:1">(Facultative: Master Osc.)</text>
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+       y2="285.14999"
+       stroke="#000000"
+       stroke-width="0.8"
+       id="line39"
+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <text
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+       y="283"
+       fill="#000000"
+       font-size="9.5px"
+       font-weight="600"
+       id="text40">DB-25 Cutout</text>
+    <text
+       x="625"
+       y="294"
+       fill="#555555"
+       font-size="8.5px"
+       id="text41"
+       style="fill:#000000;fill-opacity:1">(Centered X: 17.85 mm)</text>
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+  <g
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+     transform="translate(89.103516,-72.389648)">
+    <text
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+       y="82"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="13px"
+       font-weight="700"
+       id="text42">LEFT WALL ELEVATION</text>
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+       y="98"
+       text-anchor="middle"
+       fill="#666666"
+       font-size="10px"
+       id="text43"
+       style="fill:#000000;fill-opacity:1">(PCB Mount Surface View)</text>
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+       cy="150"
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+       stroke="#000000"
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+       cy="270"
+       r="3"
+       fill="none"
+       stroke="#000000"
+       stroke-width="1.2"
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+       cx="876"
+       cy="270"
+       r="3"
+       fill="none"
+       stroke="#000000"
+       stroke-width="1.2"
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+    <text
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+       y="215"
+       text-anchor="middle"
+       fill="#64748b"
+       font-size="10px"
+       font-weight="600"
+       id="text48"
+       style="fill:#000000;fill-opacity:1">PCB Mounting Face</text>
+    <line
+       x1="742.17999"
+       y1="301.60999"
+       x2="742.17999"
+       y2="335"
+       stroke="#000000"
+       stroke-width="0.75"
+       id="line48" />
+    <line
+       x1="909.82001"
+       y1="301.60999"
+       x2="909.82001"
+       y2="335"
+       stroke="#000000"
+       stroke-width="0.75"
+       id="line49" />
+    <line
+       x1="746.67487"
+       y1="334"
+       x2="905.32507"
+       y2="334"
+       stroke="#000000"
+       stroke-width="1.16738"
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+       marker-end="url(#arrow-end)"
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+    <text
+       x="826"
+       y="349"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="10.5px"
+       font-weight="700"
+       id="text50">Depth: 152.4 mm</text>
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+       y1="120"
+       x2="941"
+       y2="120"
+       stroke="#000000"
+       stroke-width="0.75"
+       id="line51"
+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <line
+       x1="909.82001"
+       y1="301.60999"
+       x2="941"
+       y2="301.60999"
+       stroke="#000000"
+       stroke-width="0.75"
+       id="line52"
+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <line
+       x1="940"
+       y1="123.76012"
+       x2="940"
+       y2="297.84988"
+       stroke="#000000"
+       stroke-width="1.17489"
+       marker-start="url(#arrow-start)"
+       marker-end="url(#arrow-end)"
+       id="line53"
+       style="marker-start:url(#marker69);marker-end:url(#marker70)" />
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+       id="g53">
+      <text
+         x="0"
+         y="0"
+         text-anchor="middle"
+         fill="#000000"
+         font-size="10.5px"
+         font-weight="700"
+         id="text53">165.1 mm</text>
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