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= h_margin; working_height = height - v_margin; working_increment = working_height / 7; // generally-useful spacing amount for vertical columns of stuff // How much horizontal space needed for left-hand and right-hand sub-panels left_panel_width = 12.5*3 + tolerance*4 + 8; //three knobs plus space between them right_panel_width = width_mm - thickness*2; // draw a "vertical" wall 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 ### 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 for rounding teh top edge. ≥30 means "round, using current quality setting". Cone_indents_faces = 30; // Height of the dialhand protruding over the base shape. Cylinder(r = setscrew_hole_radius, h = engraved_indicator_depth * 2, $fn = top_rounding_faces.

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