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BackOf box [right_edge, -extra_depth], // bottom horizontal rib // h_wall(h=4, l=right_rib_x); // bottom right [right_edge, rotate_vector_sin * height], // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom horizontal rib // h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib // h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib // h_wall(h=1.6, l=right_rib_x); // one more vertical to mount a circuit board to, dead center pcb_holder(h=10, l=top_row-rail_clearance*2, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## Photos [to be added] ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md ``` git.
- Normal -0.900357 -0.423679 0.0992621 vertex -7.43821.
- 9.835916e-001 1.804095e-001 0.000000e+000 facet normal.
- -9.020292e+01 9.930476e+01 2.655000e+01 facet normal 0.260332.
- Https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=261, NSMD pad definition.
- -3.838442e-003 2.430121e-001 vertex 5.061790e+000 -2.922103e+000 2.470887e+001.