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Oscillator) Sequencer PSU (power supply unit) VCO (Voltage-controlled oscillator) Sequencer PSU (power supply unit Outputs ±12V DC, +5V DC, and passes CV and trigger or gate per step. (10 One potentiometer per step, to set output voltages. (10 One potentiometer for internal clock rate. Switches: One SPST switch to disable the clock, and a switch module label(string, size=4, halign="center", height=thickness+1, font=default_label_font) { color([1,0,0]) linear_extrude(height) text(string, size, halign=halign, font=font_for_title); //} // draw a horizontal cylinder around the setscrew hole in case you are using Eurorack height = 266 + tolerance; // rib + half a jack col_right = width_mm - 10 - center_adjust; // build up seven rows; middle one unused row_2 = row_1 + v_margin + 12; row_1 = bottom_row + v_margin + 12; //knob_radius top_row = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", width_mm - hole_dist_side - thickness; // draw a "vertical" wall to mount the circuit board to, dead center v_wall(h=4, l=top_row-rail_clearance*2-thickness-15); // PCB holder pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, 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 ## GitHub repository https://github.com/holmesrichards/precadsr Submodules Latest commits for file Images/capsocket.png b554ec2138 Add footprint items for panel holes; separate panel and Pin 1, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fav-0 A Series, 3 pole female receptacle, grounding: mating connector shell and front panel, vertical PCB mount, black chrome shell, https://www.neutrik.com/en/product/nc3mbhr-b B Series, 4 pole chassis connector, red D-size flange, countersunk thru holes, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fah2-0 A Series, 3 pole female XLR receptacle, grounding: without ground/shell contact, horizontal PCB mount, retention spring instead of.

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