fix: add camera node IPEX antenna hole

hardware/DESIGN_PIPELINE.md

@@ -23,7 +23,7 @@
 **Design direction:**
 
 - Stand-mounted upright camera node enclosure; the case still does **not** mount to the GoPro.
-- Visual direction now matches the original green appliance-style reference: tall vertical body, large inset front panel, centered OLED near the upper third, blank middle area, two long rounded lower slots, bottom USB-C female power input, and right-side USB-A female passthrough power port for the GoPro.
+- Visual direction now matches the original green appliance-style reference: tall vertical body, large inset front panel, centered OLED near the upper third, blank middle area, two long rounded lower slots, bottom USB-C female power input, right-side USB-A female passthrough power port for the GoPro, and left-side IPEX/U.FL antenna pigtail/connector exit opposite the USB-A.
 - This replaces the rejected wide/low generic electronics-box layout from the first v4 attempt.
 - Primary mounting is reusable cloth zip ties / Velcro straps through two low-profile vertical rear brackets with long lateral side-feed openings, not a clamp/dovetail.
 - Front has a recessed/flush full-height service lid similar to a field-service status panel.
@@ -34,7 +34,7 @@
   - small rocker on/off switch.
   - two long rounded lower front slots styled after the reference.
 - Front-panel screen, LED, rocker, and lower-slot openings are actual through-cuts through the full lid and locating lip so the back side of the printed lid is not skinned over.
-- Body includes screw bosses, recessed lid pocket, lid locating geometry, a bottom USB-C female power inlet cutout, a right-side USB-A female passthrough power cutout, and two vertical external rear zip-tie/Velcro brackets to resist rotation on a stand. The zip ties feed laterally through long side windows behind the raised bridge faces; the old top-to-bottom feed-through tunnel is intentionally closed by top/bottom anchor pads.
+- Body includes screw bosses, recessed lid pocket, lid locating geometry, a bottom USB-C female power inlet cutout, a right-side USB-A female passthrough power cutout, a left-side 5.0 mm prototype IPEX/U.FL antenna pigtail/connector through-hole with shallow exterior recess, and two vertical external rear zip-tie/Velcro brackets to resist rotation on a stand. The zip ties feed laterally through long side windows behind the raised bridge faces; the old top-to-bottom feed-through tunnel is intentionally closed by top/bottom anchor pads.
 - Internal envelope is sized for known module dimensions plus service clearance:
   - ESP32-C3 Super Mini: 22.5 × 18 mm.
   - ESP-01S: ~24.7 × 14.3 × 12 mm.
@@ -67,6 +67,7 @@ BAT 87%  LINK OK
   - USB cable diameter and bend radius.
   - bottom USB-C female panel/breakout connector flange, body depth, and mounting requirements.
   - right-side USB-A female panel/breakout connector flange, body depth, and mounting requirements for GoPro 5 V passthrough.
+  - left-side IPEX/U.FL antenna pigtail/bulkhead exact outside diameter, retention/flange needs, bend radius, strain relief, and whether the current 5.0 mm prototype through-hole plus 8.5 mm shallow exterior recess should change before production.
   - actual regulator/power distribution board footprint if used.
 - Fasteners:
   - M2 vs M2.5 vs self-tapping screws for lid.
@@ -80,7 +81,7 @@ BAT 87%  LINK OK
   - rear vertical zip-tie bracket top/bottom anchor-pad and bridge strength, and whether the lateral side-feed openings print cleanly without supports.
   - body/lid fit after PETG shrinkage.
   - lid lip clearance and screw boss robustness.
-  - USB-C/USB-A cutout edge quality, wall strength, and connector retention/strain relief.
+  - USB-C/USB-A and IPEX antenna exit cutout edge quality, wall strength, and connector retention/strain relief.
 
 **Suggested OpenSCAD validation/export commands:**
 
@@ -91,7 +92,7 @@ openscad -o /tmp/camera-node-case-v4-preview.stl hardware/case/camera-node-case-
 openscad -o /tmp/camera-node-case-v4-front-review.stl hardware/case/camera-node-case-v4-front-review.scad
 ```
 
-Latest validation: OpenSCAD reports `Simple: yes`; trimesh confirms body, lid, preview, and front-review STLs are watertight. Body and lid each export as a single connected printable component; preview includes separate non-print board guide volumes by design. A rear-bracket sanity check confirms both vertical brackets have clear non-solid lateral X-direction side-feed volumes behind the raised bridge faces, while the rear wall, bridge faces, and top/bottom anchor pads remain solid.
+Latest validation: OpenSCAD reports `Simple: yes`; trimesh confirms body, lid, preview, and front-review STLs are watertight. Body and lid each export as a single connected printable component; preview includes separate non-print board/connector guide volumes by design. A rear-bracket sanity check confirms both vertical brackets have clear non-solid lateral X-direction side-feed volumes behind the raised bridge faces, while the rear wall, bridge faces, and top/bottom anchor pads remain solid. The left-side IPEX/U.FL antenna hole is a through-wall cut to the interior cavity, not a blind exterior pocket.
 
 Or with the main parametric selector:
 

hardware/README.md

@@ -39,6 +39,7 @@ Each camera node is two ESP boards in a small upright stand-mounted case. The ca
 | Small rocker switch | 1 | ~$1–$3 | On/off switch; prototype CAD assumes 13 × 19 mm snap-in opening |
 | USB-C female panel/breakout connector | 1 | ~$1–$4 | Bottom power input; prototype CAD assumes ~10.5 × 4.5 mm rounded visible opening plus shallow underside recess; measure purchased part |
 | USB-A female panel/breakout connector | 1 | ~$1–$4 | Right-side GoPro power passthrough output; prototype CAD assumes ~16 × 8 mm side opening; measure purchased part |
+| IPEX/U.FL antenna pigtail or bulkhead lead | 1 | TBD | Left-side antenna exit opposite the USB-A port; prototype CAD assumes a 5.0 mm circular through-hole plus shallow exterior recess; measure exact pigtail/bulkhead diameter before production |
 | USB power bank (5000 mAh+) | 1 | ~$10 | Powers camera node and GoPro |
 | Short USB cables / wiring | as needed | ~$2–$5 | Power bank → node USB-C input; node 5 V passthrough → USB-A female → GoPro USB cable; internal power/signal wiring |
 | M2 or small self-tapping screws | 4 | <$1 | Front service lid screws; pilot holes are parametric |
@@ -52,7 +53,7 @@ Each camera node is two ESP boards in a small upright stand-mounted case. The ca
 **Current source:** `hardware/case/camera-node-case-v4.scad`
 **Pipeline:** `hardware/DESIGN_PIPELINE.md`
 
-The current v4 CAD replaces the rejected wide/low electronics-box layout with a tall appliance-style enclosure matching the original upright reference: a clean vertical body, large inset front panel, OLED near the top, open blank middle area, two long rounded lower slots, a bottom USB-C female power input, and a right-side USB-A female passthrough power port for the GoPro. It also replaces the v3 clamp/dovetail concept with a simpler strap-mounted field enclosure:
+The current v4 CAD replaces the rejected wide/low electronics-box layout with a tall appliance-style enclosure matching the original upright reference: a clean vertical body, large inset front panel, OLED near the top, open blank middle area, two long rounded lower slots, a bottom USB-C female power input, a right-side USB-A female passthrough power port for the GoPro, and a left-side IPEX/U.FL antenna pigtail/connector hole opposite the USB-A. It also replaces the v3 clamp/dovetail concept with a simpler strap-mounted field enclosure:
 
 1. **Case body** — shell sized around ESP32-C3 Super Mini + ESP-01S with service/wiring clearance.
 2. **Flush/recessed full-height front service lid** — screw-on front panel with locating lip and a restrained raised/recessed border.
@@ -64,6 +65,7 @@ The current v4 CAD replaces the rejected wide/low electronics-box layout with a
    - two long rounded lower front slots styled after the reference appliance face.
 4. **Rear vertical zip-tie pass-through brackets** — two low-profile external brackets, one left and one right of center, with top/bottom anchor pads and long vertical side-access openings. Zip ties feed laterally in the X direction behind each raised bridge face instead of top-to-bottom, while the rear wall stays sealed.
 5. **USB power ports** — bottom USB-C female power input and right-side USB-A female passthrough power output for a GoPro USB power cable.
+6. **Left-side antenna exit** — prototype 5.0 mm round through-wall IPEX/U.FL antenna pigtail/connector clearance, placed opposite the right-side USB-A port at the same vertical position, with a shallow exterior circular recess for visual/exit relief. Measure the actual antenna pigtail/bulkhead before production.
 
 ### Export wrappers
 
@@ -100,7 +102,7 @@ openscad -D 'part="front_review"' -o hardware/case/camera-node-case-v4-front-rev
 - **Layer:** 0.2 mm typical.
 - **Infill:** 20% gyroid minimum; 30%+ recommended around rear vertical zip-tie bracket anchor pads/bridges.
 - **Supports:** likely minimal/none depending on orientation; verify the rear lateral side-feed openings remain open and check USB-C/USB-A port cutouts in slicer.
-- **Post-processing:** fit 4 lid screws; deburr OLED/LED/switch cutouts; clear any stringing inside the rear side-feed openings; soften strap-contact edges if the printed radius is too sharp for cloth ties.
+- **Post-processing:** fit 4 lid screws; deburr OLED/LED/switch and IPEX antenna exit cutouts; clear any stringing inside the rear side-feed openings; soften strap-contact edges if the printed radius is too sharp for cloth ties.
 
 ## Expected Status Screen Content
 

hardware/case/camera-node-case-v4-lid.stl

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-      vertex 17.8146 0.999985 68.2552
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   facet normal -0.998429 0 0.0560343
     outer loop
       vertex 20.3912 0.2 68.8432
@@ -19319,6 +19305,20 @@ solid OpenSCAD_Model
       vertex 17.6 0.2 69
     endloop
   endfacet
+  facet normal 0.815837 -0 0.578282
+    outer loop
+      vertex 17.8146 0.2 68.2552
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+  facet normal 0.815837 0 0.578282
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+      vertex 17.9054 0.2 68.1271
+    endloop
+  endfacet
   facet normal 0.0560699 0 0.998427
     outer loop
       vertex 18.8433 0.999985 67.6088
@@ -20845,20 +20845,6 @@ solid OpenSCAD_Model
       vertex 16.7577 -0.999985 68.4882
     endloop
   endfacet
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-      vertex 19.9979 0.2 66.9278
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     outer loop
       vertex 17.3737 0.2 67.3737
@@ -20873,6 +20859,20 @@ solid OpenSCAD_Model
       vertex 17.3737 -0.999985 67.3737
     endloop
   endfacet
+  facet normal -0.483436 0 0.87538
+    outer loop
+      vertex 19.9979 0.2 66.9278
+      vertex 20.2237 -0.999985 67.0525
+      vertex 20.2237 0.2 67.0525
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+    outer loop
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+      vertex 19.9979 0.2 66.9278
+      vertex 19.9979 -0.999985 66.9278
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+  endfacet
   facet normal -0.276871 0 -0.960907
     outer loop
       vertex 19.5118 -0.999985 71.2423
@@ -21377,20 +21377,6 @@ solid OpenSCAD_Model
       vertex -17.6294 -0.999985 42.073
     endloop
   endfacet
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-      vertex -18.5 -0.2 43.3
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-      vertex -18.4918 -0.999985 43.1544
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-  endfacet
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     outer loop
       vertex -18.3007 -0.999985 63.3916
@@ -21503,6 +21489,20 @@ solid OpenSCAD_Model
       vertex 18.2164 -0.999985 42.4895
     endloop
   endfacet
+  facet normal 0.998418 -0 0.0562296
+    outer loop
+      vertex -18.5 -0.999985 43.3
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+  endfacet
   facet normal -0.666574 0 -0.745439
     outer loop
       vertex 18.0105 -0.999985 63.7164
@@ -23071,20 +23071,6 @@ solid OpenSCAD_Model
       vertex -15.1113 2 60.9875
     endloop
   endfacet
-  facet normal 0.8755 -0 0.483219
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-      vertex -15.4505 2 45.2831
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@@ -23155,20 +23141,6 @@ solid OpenSCAD_Model
       vertex 15.1113 -0.2 45.0125
     endloop
   endfacet
-  facet normal -0.483219 0 -0.8755
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-      vertex 15.266 -0.2 60.9234
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-      vertex 15.2169 2 60.9505
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       vertex 15.1651 2 45.0281
@@ -23267,6 +23239,20 @@ solid OpenSCAD_Model
       vertex -15.4505 -0.2 45.2831
     endloop
   endfacet
+  facet normal 0.8755 -0 0.483219
+    outer loop
+      vertex -15.4505 -0.2 45.2831
+      vertex -15.4234 2 45.234
+      vertex -15.4505 2 45.2831
+    endloop
+  endfacet
+  facet normal 0.8755 0 0.483219
+    outer loop
+      vertex -15.4234 2 45.234
+      vertex -15.4505 -0.2 45.2831
+      vertex -15.4234 -0.2 45.234
+    endloop
+  endfacet
   facet normal -0.998471 0 0.0552725
     outer loop
       vertex 15.4969 -0.2 45.444
@@ -23351,20 +23337,6 @@ solid OpenSCAD_Model
       vertex -15.3118 -0.2 45.1091
     endloop
   endfacet
-  facet normal -0.744447 0 0.667682
-    outer loop
-      vertex 15.3535 -0.2 45.1465
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-      vertex 15.3535 2 45.1465
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-      vertex 15.3535 -0.2 45.1465
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-    endloop
-  endfacet
   facet normal -0.815534 0 0.578709
     outer loop
       vertex 15.3909 -0.2 45.1882
@@ -23533,6 +23505,20 @@ solid OpenSCAD_Model
       vertex 15.3118 -0.2 45.1091
     endloop
   endfacet
+  facet normal -0.744447 0 0.667682
+    outer loop
+      vertex 15.3535 -0.2 45.1465
+      vertex 15.3909 2 45.1882
+      vertex 15.3535 2 45.1465
+    endloop
+  endfacet
+  facet normal -0.744447 0 0.667682
+    outer loop
+      vertex 15.3909 2 45.1882
+      vertex 15.3535 -0.2 45.1465
+      vertex 15.3909 -0.2 45.1882
+    endloop
+  endfacet
   facet normal -0.381826 0 -0.924234
     outer loop
       vertex 15.1651 -0.2 60.9719
@@ -23603,6 +23589,20 @@ solid OpenSCAD_Model
       vertex 15.4719 -0.2 60.6651
     endloop
   endfacet
+  facet normal -0.483219 0 -0.8755
+    outer loop
+      vertex 15.2169 -0.2 60.9505
+      vertex 15.266 2 60.9234
+      vertex 15.266 -0.2 60.9234
+    endloop
+  endfacet
+  facet normal -0.483219 0 -0.8755
+    outer loop
+      vertex 15.266 2 60.9234
+      vertex 15.2169 -0.2 60.9505
+      vertex 15.2169 2 60.9505
+    endloop
+  endfacet
   facet normal -0.744447 0 -0.667682
     outer loop
       vertex 15.3909 -0.2 60.8118
@@ -23981,20 +23981,6 @@ solid OpenSCAD_Model
       vertex -14.4716 -0.999985 31.4898
     endloop
   endfacet
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-      vertex -15 2 31.4
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-      vertex -15 2 31.4
-      vertex -15 -0.999985 31.4
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   facet normal 0.579022 0 -0.815312
     outer loop
       vertex -15.9976 -0.999985 34.2509
@@ -24415,6 +24401,20 @@ solid OpenSCAD_Model
       vertex -16.5899 -0.999985 32.8209
     endloop
   endfacet
+  facet normal -0.0563036 0 0.998414
+    outer loop
+      vertex -15 2 31.4
+      vertex -14.8209 -0.999985 31.4101
+      vertex -14.8209 2 31.4101
+    endloop
+  endfacet
+  facet normal -0.0563036 0 0.998414
+    outer loop
+      vertex -14.8209 -0.999985 31.4101
+      vertex -15 2 31.4
+      vertex -15 -0.999985 31.4
+    endloop
+  endfacet
   facet normal -0.1672 0 0.985923
     outer loop
       vertex 15.1791 2 31.4101
@@ -26375,6 +26375,20 @@ solid OpenSCAD_Model
       vertex -16.9186 -0.999985 16.3711
     endloop
   endfacet
+  facet normal -0.815517 0 0.578734
+    outer loop
+      vertex 16.6836 -0.999985 15.946
+      vertex 16.7777 2 16.0786
+      vertex 16.6836 2 15.946
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+  endfacet
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+    outer loop
+      vertex 16.7777 2 16.0786
+      vertex 16.6836 -0.999985 15.946
+      vertex 16.7777 -0.999985 16.0786
+    endloop
+  endfacet
   facet normal -0.276833 0 0.960918
     outer loop
       vertex 15.8727 2 15.4364
@@ -26459,6 +26473,20 @@ solid OpenSCAD_Model
       vertex -16.454 -0.999985 15.7164
     endloop
   endfacet
+  facet normal 0.382605 0 0.923912
+    outer loop
+      vertex -16.1791 2 15.5436
+      vertex -16.0289 -0.999985 15.4814
+      vertex -16.0289 2 15.4814
+    endloop
+  endfacet
+  facet normal 0.382605 0 0.923912
+    outer loop
+      vertex -16.0289 -0.999985 15.4814
+      vertex -16.1791 2 15.5436
+      vertex -16.1791 -0.999985 15.5436
+    endloop
+  endfacet
   facet normal 0.985823 -0 0.167787
     outer loop
       vertex -16.9909 -0.999985 16.6877
@@ -26557,18 +26585,18 @@ solid OpenSCAD_Model
       vertex 16.454 2 18.2836
     endloop
   endfacet
-  facet normal 0.382605 0 0.923912
+  facet normal -0.815517 0 -0.578734
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-      vertex -16.1791 2 15.5436
+      vertex 16.7777 -0.999985 17.9214
-      vertex -16.0289 -0.999985 15.4814
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     endloop
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+  facet normal -0.815517 -0 -0.578734
     outer loop
-      vertex -16.0289 -0.999985 15.4814
+      vertex 16.6836 2 18.054
-      vertex -16.1791 2 15.5436
+      vertex 16.7777 -0.999985 17.9214
-      vertex -16.1791 -0.999985 15.5436
+      vertex 16.6836 -0.999985 18.054
     endloop
   endfacet
   facet normal -0.666004 0 0.745949
@@ -26739,20 +26767,6 @@ solid OpenSCAD_Model
       vertex 15.7123 -0.999985 15.4091
     endloop
   endfacet
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-      vertex 16.6836 -0.999985 15.946
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-  endfacet
   facet normal -0.998432 0 0.0559811
     outer loop
       vertex 16.9909 -0.999985 16.6877
@@ -26767,20 +26781,6 @@ solid OpenSCAD_Model
       vertex 17 -0.999985 16.85
     endloop
   endfacet
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-      vertex 16.7777 -0.999985 17.9214
-      vertex 16.6836 2 18.054
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     outer loop
       vertex -15.8727 -0.999985 18.5636
@@ -26865,20 +26865,6 @@ solid OpenSCAD_Model
       vertex 16.9636 -0.999985 16.5273
     endloop
   endfacet
-  facet normal -0.998432 0 -0.0559811
-    outer loop
-      vertex 17 -0.999985 17.15
-      vertex 16.9909 2 17.3123
-      vertex 17 2 17.15
-    endloop
-  endfacet
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-    outer loop
-      vertex 16.9909 2 17.3123
-      vertex 17 -0.999985 17.15
-      vertex 16.9909 -0.999985 17.3123
-    endloop
-  endfacet
   facet normal -1 0 0
     outer loop
       vertex 17 -0.999985 16.85
@@ -26893,6 +26879,20 @@ solid OpenSCAD_Model
       vertex 17 -0.999985 17.15
     endloop
   endfacet
+  facet normal -0.998432 0 -0.0559811
+    outer loop
+      vertex 17 -0.999985 17.15
+      vertex 16.9909 2 17.3123
+      vertex 17 2 17.15
+    endloop
+  endfacet
+  facet normal -0.998432 -0 -0.0559811
+    outer loop
+      vertex 16.9909 2 17.3123
+      vertex 17 -0.999985 17.15
+      vertex 16.9909 -0.999985 17.3123
+    endloop
+  endfacet
   facet normal -0.985823 0 0.167787
     outer loop
       vertex 16.9636 -0.999985 16.5273
@@ -27579,20 +27579,6 @@ solid OpenSCAD_Model
       vertex 15.7123 -0.999985 9.40912
     endloop
   endfacet
-  facet normal -0.985823 0 0.167787
-    outer loop
-      vertex 16.9636 -0.999985 10.5273
-      vertex 16.9909 2 10.6877
-      vertex 16.9636 2 10.5273
-    endloop
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-      vertex 16.9909 2 10.6877
-      vertex 16.9636 -0.999985 10.5273
-      vertex 16.9909 -0.999985 10.6877
-    endloop
-  endfacet
   facet normal -0.815619 0 0.578589
     outer loop
       vertex 16.6836 -0.999985 9.94595
@@ -27677,6 +27663,20 @@ solid OpenSCAD_Model
       vertex -16.1791 2 12.4564
     endloop
   endfacet
+  facet normal 0.666004 0 -0.745949
+    outer loop
+      vertex -16.5753 -0.999985 12.1753
+      vertex -16.454 2 12.2836
+      vertex -16.454 -0.999985 12.2836
+    endloop
+  endfacet
+  facet normal 0.666004 0 -0.745949
+    outer loop
+      vertex -16.454 2 12.2836
+      vertex -16.5753 -0.999985 12.1753
+      vertex -16.5753 2 12.1753
+    endloop
+  endfacet
   facet normal -0.38271 0 0.923868
     outer loop
       vertex 16.0289 2 9.48137
@@ -27705,18 +27705,18 @@ solid OpenSCAD_Model
       vertex 16.9636 -0.999985 10.5273
     endloop
   endfacet
-  facet normal 0.666004 0 -0.745949
+  facet normal -0.998432 0 -0.0559811
     outer loop
-      vertex -16.5753 -0.999985 12.1753
+      vertex 17 -0.999985 11.15
-      vertex -16.454 2 12.2836
+      vertex 16.9909 2 11.3123
-      vertex -16.454 -0.999985 12.2836
+      vertex 17 2 11.15
     endloop
   endfacet
-  facet normal 0.666004 0 -0.745949
+  facet normal -0.998432 -0 -0.0559811
     outer loop
-      vertex -16.454 2 12.2836
+      vertex 16.9909 2 11.3123
-      vertex -16.5753 -0.999985 12.1753
+      vertex 17 -0.999985 11.15
-      vertex -16.5753 2 12.1753
+      vertex 16.9909 -0.999985 11.3123
     endloop
   endfacet
   facet normal -1 0 0
@@ -27733,18 +27733,18 @@ solid OpenSCAD_Model
       vertex 17 -0.999985 11.15
     endloop
   endfacet
-  facet normal -0.998432 0 -0.0559811
+  facet normal -0.985823 0 0.167787
     outer loop
-      vertex 17 -0.999985 11.15
+      vertex 16.9636 -0.999985 10.5273
-      vertex 16.9909 2 11.3123
+      vertex 16.9909 2 10.6877
-      vertex 17 2 11.15
+      vertex 16.9636 2 10.5273
     endloop
   endfacet
-  facet normal -0.998432 -0 -0.0559811
+  facet normal -0.985823 0 0.167787
     outer loop
-      vertex 16.9909 2 11.3123
+      vertex 16.9909 2 10.6877
-      vertex 17 -0.999985 11.15
+      vertex 16.9636 -0.999985 10.5273
-      vertex 16.9909 -0.999985 11.3123
+      vertex 16.9909 -0.999985 10.6877
     endloop
   endfacet
 endsolid OpenSCAD_Model

hardware/case/camera-node-case-v4.scad

@@ -14,6 +14,8 @@
 // - Boards: ESP32-C3 Super Mini 22.5 x 18 mm, ESP-01S 24.7 x 14.3 x 12 mm.
 // - USB-C bottom power inlet and side USB-A passthrough are panel/breakout placeholders;
 //   measure purchased connector flanges/bodies before production prints.
+// - Left-side IPEX/U.FL antenna pigtail connector/lead hole is a prototype 5.0 mm
+//   circular through-wall clearance; measure the final bulkhead/lead before production.
 
 $fn = 56;
 
@@ -75,6 +77,14 @@ usb_a_cutout_h = 8.0;         // side USB-A female opening, Z height
 usb_a_z = 26.0;               // mid/lower right side, clear of front lid screws/strap bridges
 usb_a_y = 2.0;
 
+// Left-side antenna lead / IPEX-U.FL pigtail connector placeholder.
+// Opposite the right-side USB-A port and cut fully through the left wall into the cavity.
+ipex_hole_d = 5.0;            // prototype circular clearance; measure final pigtail/bulkhead
+ipex_recess_d = 8.5;          // shallow exterior visual/seat recess, not retention geometry
+ipex_recess_depth = 0.9;
+ipex_z = usb_a_z;
+ipex_y = usb_a_y;
+
 // ----- Utility geometry -----
 module rounded_box(size=[10,10,10], r=2, center_xy=true) {
     // Rounded in XY, straight in Z.
@@ -104,6 +114,10 @@ module y_cylinder(d, h, center=true) {
     rotate([90,0,0]) cylinder(d=d, h=h, center=center);
 }
 
+module x_cylinder(d, h, center=true) {
+    rotate([0,90,0]) cylinder(d=d, h=h, center=center);
+}
+
 module screw_boss(x, z) {
     translate([x, -case_d/2 + front_recess_d + boss_len/2, z])
         difference() {
@@ -175,6 +189,14 @@ module camera_node_body_v4() {
                 // Right-side USB-A female passthrough power port for the GoPro.
                 translate([case_w/2 - 0.10, usb_a_y, usb_a_z])
                     yz_rounded_prism(usb_a_cutout_d, wall + 2.8, usb_a_cutout_h, r=0.9);
+
+                // Left-side IPEX/U.FL antenna pigtail connector/lead clearance.
+                // Through-hole intentionally extends past the inner wall so it opens to the cavity.
+                translate([-case_w/2 - 0.10, ipex_y, ipex_z])
+                    x_cylinder(d=ipex_hole_d, h=wall + 3.0);
+                // Shallow exterior circular recess marks/relieves the antenna exit area.
+                translate([-case_w/2 + ipex_recess_depth/2 - 0.05, ipex_y, ipex_z])
+                    x_cylinder(d=ipex_recess_d, h=ipex_recess_depth + 0.2);
             }
 
             // Four protected screw bosses are added after shell hollowing so the
@@ -261,6 +283,7 @@ module camera_node_preview_v4(show_lid=true) {
     color([0,0.2,0.8,0.35]) translate([9, -1, 45]) cube([24.7, 14.3, 12], center=true);
     color([0.1,0.1,0.1,0.35]) translate([0, usb_c_y, 3.8]) cube([16, 9, 5], center=true);
     color([0.1,0.1,0.1,0.35]) translate([case_w/2 - 5.5, usb_a_y, usb_a_z]) cube([11, usb_a_cutout_d + 2, usb_a_cutout_h + 2], center=true);
+    color([0.9,0.7,0.1,0.45]) translate([-case_w/2 - 1.8, ipex_y, ipex_z]) x_cylinder(d=ipex_hole_d, h=8.0);
 }
 
 // Non-print review layout: separates the body and front lid while keeping both