From 34351baa98ffbdaa85b77c444f740e0abad511ef Mon Sep 17 00:00:00 2001
From: Denis Chevalier <perso@denischevalier.fr>
Date: Sat, 8 Aug 2026 15:07:16 +0200
Subject: Improve global project (typos, enforce 80 columns whenever possible,
 diagrams) and finish 3.1

---
 pictures/cassette-external-dimensions.svg | 628 ++++++++++++++++++++++++++++++
 1 file changed, 628 insertions(+)
 create mode 100644 pictures/cassette-external-dimensions.svg

(limited to 'pictures/cassette-external-dimensions.svg')

diff --git a/pictures/cassette-external-dimensions.svg b/pictures/cassette-external-dimensions.svg
new file mode 100644
index 0000000..793ec3f
--- /dev/null
+++ b/pictures/cassette-external-dimensions.svg
@@ -0,0 +1,628 @@
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+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Triangle"
+       refX="0"
+       refY="0"
+       orient="auto-start-reverse"
+       inkscape:stockid="Triangle arrow"
+       markerWidth="1"
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+       viewBox="0 0 1 1"
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+         d="M 5.77,0 -2.88,5 V -5 Z"
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+    </marker>
+    <!-- Standard CAD Arrowheads -->
+    <!-- Subtle Hatch Pattern for Metal Section Cut/Fill -->
+    <marker
+       style="overflow:visible"
+       id="Triangle-7"
+       refX="0"
+       refY="0"
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+    <marker
+       style="overflow:visible"
+       id="marker28-3"
+       refX="0"
+       refY="0"
+       orient="auto-start-reverse"
+       inkscape:stockid="Triangle arrow"
+       markerWidth="1"
+       markerHeight="1"
+       viewBox="0 0 1 1"
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+         d="M 5.77,0 -2.88,5 V -5 Z"
+         id="path28-5" />
+    </marker>
+  </defs>
+  <!-- Title & Header -->
+  <!-- ================================================================= -->
+  <!-- SIDE ELEVATION (LEFT VIEW)                                       -->
+  <!-- ================================================================= -->
+  <g
+     id="side-elevation"
+     transform="translate(-103.00342,-71.128906)">
+    <!-- View Label -->
+    <text
+       x="380"
+       y="80"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="12px"
+       font-weight="700"
+       id="text4">SIDE ELEVATION</text>
+    <!-- Cassette Body Outline -->
+    <!-- Scale: Y-span 177.8mm = 391.16px (2.2 px/mm). Top Panel Y = 100, Bottom Panel Y = 491.16 -->
+    <!-- Body Top Y = 113.97 (+6.35mm lip), Body Bottom Y = 477.19 (-6.35mm lip) -->
+    <!-- Depth 152.4mm = 335.28px. Front X = 210, Rear X = 545.28 -->
+    <!-- Body Box -->
+    <rect
+       x="210"
+       y="113.97"
+       width="335.28"
+       height="363.22"
+       fill="url(#diagonalHatch)"
+       stroke="#000000"
+       stroke-width="2"
+       id="rect4"
+       style="fill:url(#pattern38)" />
+    <!-- Front Panel (with lips extending top & bottom) -->
+    <!-- Panel Thickness ~ 3mm = 6.6px -> X: 203.4 to 210 -->
+    <rect
+       x="203.39999"
+       y="100"
+       width="6.5999999"
+       height="391.16"
+       fill="#f8fafc"
+       stroke="#000000"
+       stroke-width="2"
+       id="rect5" />
+    <!-- Chassis Rail Reference Indicators (Dashed) -->
+    <line
+       x1="160"
+       y1="113.97"
+       x2="545.57501"
+       y2="113.97"
+       stroke="#888888"
+       stroke-width="0.987998"
+       stroke-dasharray="4, 4"
+       id="line5"
+       style="stroke:#000000;stroke-width:0.717;stroke-dasharray:none;stroke-opacity:1" />
+    <line
+       x1="160.45"
+       y1="477.49402"
+       x2="544.57501"
+       y2="477.49402"
+       stroke="#888888"
+       stroke-width="0.986139"
+       stroke-dasharray="4, 4"
+       id="line5-6"
+       style="font-family:ui-sans-serif, system-ui, '-apple-system', BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;stroke:#000000;stroke-width:0.717;stroke-dasharray:none;stroke-opacity:1" />
+    <text
+       x="555"
+       y="109"
+       fill="#666666"
+       font-size="9px"
+       font-style="italic"
+       id="text6"
+       style="fill:#000000;fill-opacity:1">Chassis Rail Limit</text>
+    <text
+       x="555"
+       y="487"
+       fill="#666666"
+       font-size="9px"
+       font-style="italic"
+       id="text7"
+       style="fill:#000000;fill-opacity:1">Chassis Rail Limit</text>
+    <!-- DIMENSIONS FOR SIDE VIEW -->
+    <!-- 1. Panel Height (177.8 mm) -->
+    <line
+       x1="205.39999"
+       y1="100"
+       x2="119.975"
+       y2="100"
+       stroke="#000000"
+       stroke-width="0.717266"
+       id="line7" />
+    <line
+       x1="203.39999"
+       y1="491.16"
+       x2="120.15"
+       y2="491.16"
+       stroke="#000000"
+       stroke-width="0.708076"
+       id="line8" />
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+       x1="120"
+       y1="104.26476"
+       x2="120"
+       y2="487.62024"
+       stroke="#000000"
+       stroke-width="1.18797"
+       marker-start="url(#arrow-start)"
+       marker-end="url(#arrow-end)"
+       id="line9"
+       style="marker-start:url(#marker29);marker-end:url(#marker30)" />
+    <g
+       transform="rotate(-90,203.79,91.79)"
+       id="g9">
+      <text
+         x="0"
+         y="0"
+         text-anchor="middle"
+         fill="#000000"
+         font-size="11px"
+         font-weight="700"
+         id="text9">Panel Height: 177.8 mm ±0.1 (4U / 7.0&quot;)</text>
+    </g>
+    <!-- 2. Body Height (165.1 mm) -->
+    <line
+       x1="160"
+       y1="118.23675"
+       x2="160"
+       y2="474.37323"
+       stroke="#000000"
+       stroke-width="1.18824"
+       marker-start="url(#arrow-start)"
+       marker-end="url(#arrow-end)"
+       id="line10"
+       style="marker-start:url(#marker26);marker-end:url(#marker27)" />
+    <g
+       transform="rotate(-90,223.79,71.79)"
+       id="g10">
+      <text
+         x="0"
+         y="0"
+         text-anchor="middle"
+         fill="#000000"
+         font-size="11px"
+         font-weight="600"
+         id="text10">Body Height: 165.1 mm ±0.1 (6.5&quot;)</text>
+    </g>
+    <!-- 3. Top Lip Height (6.35 mm) -->
+    <line
+       x1="216"
+       y1="101.53458"
+       x2="216"
+       y2="110.39766"
+       stroke="#000000"
+       stroke-width="0.796515"
+       marker-start="url(#arrow-start)"
+       marker-end="url(#arrow-end)"
+       id="line13"
+       style="marker-start:url(#Triangle);marker-end:url(#marker28)" />
+    <text
+       x="302"
+       y="108"
+       text-anchor="end"
+       fill="#000000"
+       font-size="9px"
+       font-weight="600"
+       id="text13">Lip height: 6.35 mm</text>
+    <line
+       x1="216.45143"
+       y1="479.82849"
+       x2="216.45143"
+       y2="488.69156"
+       stroke="#000000"
+       stroke-width="0.796515"
+       marker-start="url(#arrow-start)"
+       marker-end="url(#arrow-end)"
+       id="line13-2"
+       style="font-family:ui-sans-serif, system-ui, '-apple-system', BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;marker-start:url(#Triangle-7);marker-end:url(#marker28-3)" />
+    <text
+       x="302.45142"
+       y="486.29391"
+       text-anchor="end"
+       fill="#000000"
+       font-size="9px"
+       font-weight="600"
+       id="text13-9"
+       style="font-family:ui-sans-serif, system-ui, '-apple-system', BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif">Lip height: 6.35 mm</text>
+    <!-- Bottom Lip Pointer -->
+    <!-- 4. Depth (152.4 mm) -->
+    <line
+       x1="203.39999"
+       y1="491.16"
+       x2="203.39999"
+       y2="519.125"
+       stroke="#000000"
+       stroke-width="0.636398"
+       id="line14"
+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <line
+       x1="545.28003"
+       y1="477.19"
+       x2="545.28003"
+       y2="520.57501"
+       stroke="#000000"
+       stroke-width="0.679787"
+       id="line15"
+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <line
+       x1="207.64386"
+       y1="520"
+       x2="541.03613"
+       y2="520"
+       stroke="#000000"
+       stroke-width="1.18501"
+       marker-start="url(#arrow-start)"
+       marker-end="url(#arrow-end)"
+       id="line16"
+       style="marker-start:url(#marker31);marker-end:url(#marker32)" />
+    <text
+       x="374.34"
+       y="536"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="11px"
+       font-weight="700"
+       id="text16">Depth: 152.4 mm ±0.2 (6.0&quot;)</text>
+  </g>
+  <!-- ================================================================= -->
+  <!-- FRONT ELEVATION (RIGHT VIEW)                                      -->
+  <!-- ================================================================= -->
+  <g
+     id="front-elevation"
+     transform="translate(-103.00342,-27.128906)">
+    <!-- View Label -->
+    <text
+       x="700"
+       y="36"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="12px"
+       font-weight="700"
+       id="text17">FRONT ELEVATION</text>
+    <!-- Center Line -->
+    <!-- Front Panel Box -->
+    <!-- Width 38.0mm = 83.6px -> Center 700, Left = 658.2, Right = 741.8 -->
+    <rect
+       x="658.20001"
+       y="56"
+       width="83.599998"
+       height="391.16"
+       fill="#f8fafc"
+       stroke="#000000"
+       stroke-width="2"
+       id="rect17"
+       style="fill:#ffffff;fill-opacity:1" />
+    <!-- Inner Body Fold Line / Lip Line (Dashed) -->
+    <line
+       x1="658.20001"
+       y1="69.970001"
+       x2="741.79999"
+       y2="69.970001"
+       stroke="#000000"
+       stroke-width="1"
+       stroke-dasharray="3, 3"
+       id="line18" />
+    <line
+       x1="658.20001"
+       y1="433.19"
+       x2="741.79999"
+       y2="433.19"
+       stroke="#000000"
+       stroke-width="1"
+       stroke-dasharray="3, 3"
+       id="line19" />
+    <!-- Banana Jack Columns (0.75" / 19.05mm grid reference indication) -->
+    <!-- Left Column: 700 - 20.95 = 679.05, Right Column: 700 + 20.95 = 720.95 -->
+    <!-- DIMENSIONS FOR FRONT VIEW -->
+    <!-- 1. Panel Width (38.0 mm) -->
+    <line
+       x1="658.20001"
+       y1="447.16"
+       x2="658.20001"
+       y2="475.84998"
+       stroke="#000000"
+       stroke-width="0.644595"
+       id="line22"
+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <line
+       x1="741.79999"
+       y1="447.16"
+       x2="741.79999"
+       y2="475.84998"
+       stroke="#000000"
+       stroke-width="0.644595"
+       id="line23"
+       style="stroke-width:0.717;stroke-dasharray:none" />
+    <line
+       x1="662.14313"
+       y1="476"
+       x2="737.85687"
+       y2="476"
+       stroke="#000000"
+       stroke-width="1.142"
+       marker-start="url(#arrow-start)"
+       marker-end="url(#arrow-end)"
+       id="line24"
+       style="marker-start:url(#marker33);marker-end:url(#marker34)" />
+    <text
+       x="700"
+       y="492"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="11px"
+       font-weight="700"
+       id="text24">Width: 38.0 mm</text>
+    <text
+       x="700"
+       y="505"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="9.5px"
+       id="text25">+0.0 / -0.1 mm (1.5&quot;)</text>
+    <!-- 2. Grid Pitch Reference (38.1 mm theoretical center-to-center) -->
+    <!-- Neighbor center-line at 700 + 83.82px = 783.82 -->
+  </g>
+  <!-- ================================================================= -->
+  <!-- TECHNICAL NOTES / SPECIFICATION BOX                              -->
+  <!-- ================================================================= -->
+  <metadata
+     id="metadata38">
+    <rdf:RDF>
+      <cc:License
+         rdf:about="http://creativecommons.org/licenses/by-sa/4.0/">
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Reproduction" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Distribution" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#Notice" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#Attribution" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#DerivativeWorks" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#ShareAlike" />
+      </cc:License>
+      <cc:Work
+         rdf:about="">
+        <cc:license
+           rdf:resource="http://creativecommons.org/licenses/by-sa/4.0/" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+</svg>
-- 
cgit