chassis/sim7600x_mount.scad
Platform bracket for Waveshare SIM7600X-H 4G HAT (65×56 mm,
RPi HAT M2.5 pattern 58×49 mm). Standoffs height = HAT underside
component clearance + 4 mm. Three walls (X−, X+, Y+); Y− edge
fully open for SIM card tray access without disassembly. Floor-plate
notch wider than SIM slot so card inserts/ejects with board in situ.
USB port notch same open edge. u.FL pigtail exit slot in Y+ wall.
4× M3 flat-head countersunk holes for base plate bolt-down.
RENDER: bracket / assembly / bracket_2d (DXF for base plate layout).
chassis/antenna_mount.scad
Two bracket types on shared 25 mm stem split-collar (M4 bolts,
set screw height lock, cable-tie grooves on rear half):
lte_bracket() — arm with 2× SMA bulkhead holes (6.6 mm clearance,
hex-nut capture on underside). u.FL pigtail relief grooves on arm
underside. Antennas point skyward. Recommended: 500–600 mm stem.
gnss_platform() — upward-facing tray (≤40×40 mm patch antenna),
4-sided retention lip, central GNSS coax slot, optional M2 bolt-down
holes at 30×30 mm. Mount as high as practical for clear sky view:
750–800 mm stem height. Recommended: active 35×35 mm patch antenna.
RENDER "full_stem" shows both at 80 mm spacing on stem stub.
Individual RENDER modes for each printable piece.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
sl-mechanical
0daac970c3