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Indicator (optional)] */ // Four hole threshold (HP h_margin = hole_dist_side + thickness; v_margin = hole_dist_top*2; width_mm = 70.8; // 14HP×5.08mm = 71.12; ES for 14HP is 70.8 c_tune = [second_col, third_row, 0]; //Fourth row interface placement sync_in = [first_col, fifth_row, 0]; //left_rib_x = thickness * 1.2; right_rib_x = width_mm - thickness*2; // draw panel, subtract holes panel(width); // lower h-rib reinforcer ## Photos ### Photos ## Documentation: ### 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) How to use the 4 pins (http://www.qingpu-electronics.com/en/products/WQP-PJ320E-177.html PJ31060-I 6pin SMD 3.5mm.

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