synth_tools

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Thickness; module label(string, size=4, halign="center", font=default_label_font) { color([1,0,0]) linear_extrude(thickness+1) text(string, size, halign=halign, font=font_for_title); //} // draw panel, subtract holes // v_wall(h=4, l=height-rail_clearance*2-thickness); // top horizontal rib // middle horizontal rib // one more vertical to mount the circuit board to, dead center // 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: make power connection traces larger; MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Everything by Hagiwo (quantizer, filters, noisemakers, etc MIDI-to-CV, either over USB or directly over 5-pin DIN (with optoisolator) What we build next? Pretty confident we do these in a lawsuit) alleging that the external indicator is not a half threaded nose, https://www.neutrik.com/en/product/nrj6hf Slim Jacks, 6.35mm (1/4in) mono jack, switched, half threaded nose, sleeve contact/front panel connection, https://www.neutrik.com/en/product/nrj4hh-1 Slim Jacks, 6.35mm (1/4in) stereo jack, switched, half threaded nose, sleeve contact/front panel connection, https://www.neutrik.com/en/product/nrj4hh-1 Slim Jacks, 6.35mm (1/4in) mono jack, switched, fully threaded nose, sleeve contact/front panel connection, https://www.neutrik.com/en/product/nrj4hf-1 Slim Jacks, 6.35mm (1/4in) stereo jack, switched, fully threaded nose, straight PCB pins, https://www.neutrik.com/en/product/nmj4hhd2 M Series, 6.35mm (1/4in) mono jack, switched, fully threaded nose, straight PCB pins, https://www.neutrik.com/en/product/nmj6hhd2 Slim Jacks, 6.35mm (1/4in) stereo jack, metal nose, gold plated contacts, https://www.neutrik.com/en/product/nmj6hfd2-au M Series, 6.35mm (1/4in) stereo jack, switched, fully threaded nose, https://www.neutrik.com/en/product/nrj6hf Slim Jacks, 6.35mm (1/4in) stereo jack, switched, gold plated contacts, fully threaded nose, https://www.neutrik.com/en/product/nrj6hh-au Slim Jacks, 6.35mm (1/4in) stereo jack, vertical PCB mount, https://www.neutrik.com/en/product/nc4mbh B Series, 3 pole female receptacle, grounding: ground contact to mating connector shell and front panel: 9.8mm (alpha pots sliders: 3mm above panel, tight but possible micro toggle: 0mm above panel; could work with printed spacers and existing lead lengths alpha pots: tight, only 1/2 turn for nut 11mm - rotary, SR2511 style, with very large range of in-tune response, but comments discuss potential fixes, maybe worth it for a single 0.15 mm² wires, basic insulation, conductor diameter 0.9mm, outer diameter 2.3mm, size source Multi-Contact FLEXI-E 0.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times 0.15 mm² wires, basic insulation, conductor diameter 0.9mm, outer diameter 2.3mm, size source Multi-Contact FLEXI-E 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex Mini-Fit Jr. Power Connectors, 43915-xx14, 7 Pins per row, Mounting: Snap-in Plastic Peg PCB Lock (http://www.molex.com/pdm_docs/sd/039300020_sd.pdf), generated with kicad-footprint-generator Soldered wire connection, for 5 times 2 mm² wires, basic insulation, conductor diameter 1.25mm, outer diameter 2mm, size source Multi-Contact FLEXI-xV 0.75 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf.

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