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First attempt at a carbon-fibre-filled PLA support arm (one of a pair) for the milled-from-plate offset parabolic 122/134/248 GHz mmWave antenna dish. The left end attaches either side of a block bolted to the threaded holes behind the dish. The face is inclined at 18.9 degrees so points at the horizon with the bottom edge horizontal. The four mounting holes at the right end bolt to the enclosure containing the radar chip, focus rail, control electronics and feedhorn. Bit of Voronoi for bling.