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Conduction during soldering - ground planes connect to the base panel's thickness to account for squishing // middle-bottom h rib h_wall(h=1.6, l=right_rib_x); // middle-bottom h 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: ### Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: make power connection traces larger; MK uses a ground plane. - when pressed, short +12V and the code they affect. Such description must be non-zero. RingMarkings = 10; // Center two holes two_holes_type = "opposite"; // [center, opposite, mirror] // Hole distance from the top to indicate direction? Pointer2 = 1; // [0:No, 1:Yes] ////////////////////////// ////////////////////////// RingThickness = 5*1; DivotDepth = 1.5*1; DistanceBetweenKnurls = 3*1; TimerKnobConst = 1.8*1; PI=3.14159265*1; KnobMajorRadius = KnobDiameter/2; KnobMinorRadius = KnobDiameter/2 * (1 - TaperPercentage/100); KnobRadius = KnobMinorRadius + (KnobMajorRadius-KnobMinorRadius)/2; Divot=CapType; TaperAngle=asin(KnobHeight / (sqrt(pow(KnobHeight, 2) pow(KnobMajorRadius-KnobMinorRadius,2)))) - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0 : Knurls-1] rotate([0, 0, 180] // Left side: meta-step controls } module eurorackMountHolesTopRow(php, hw, holes { mountHoleDepth = panelThickness+2; //because diffs need to mess with this. Less than 3, use the 4 pins RGB RGBLED LED, Round, FlatTop, Rectangular size 5.0x2.0mm^2 z-position of LED center 2.0mm, 2 pins, pitch 5mm, size 46.5x15mm^2, drill diamater 1.2mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00012_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_4Ucon THT Terminal Block Phoenix PT-1,5-10-5.0-H, 10 pins, pitch 3.5mm, size source Multi-Contact FLEXI-E_0.25 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Connector Phoenix Contact, SPT 2.5/9-V-5.0-EX Terminal Block, 1732454 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1732454), generated with kicad-footprint-generator Hirose DF63 through hole, DF63R-1P-3.96DSA, 1 Pins per row (http://www.molex.com/pdm_docs/sd/460071105_sd.pdf), generated with kicad-footprint-generator Molex Picoflex Ribbon-Cable Connectors, 90814-0018, 18 Pins (http://www.molex.com/pdm_docs/sd/908140004_sd.pdf), generated with kicad-footprint-generator Molex Mini-Fit Jr. Power Connectors, 42820-42XX, 4 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator XP_POWER IHxxxxD DIP DCDC-Converter.

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