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Explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the bottom (in mm). If you want a D-shaped hole, set this value to zero. ShaftLength = 0; // Diameter of base of round part of the rail + a safety margin // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; right_rib_x = width_mm - h_margin; col_left = h_margin; working_height = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", width_mm - thickness*2.5 - tolerance*6; out_row_1 = v_margin+12; row_2 = working_increment*1 + row_1; working_increment = working_height / 7; // Radius to use the first Schematics/SynthMages.pretty/3.5mm_jack_hole_nonpcb.kicad_mod Normal file Unescape Hardware/PCB/precadsr_Gerbers/precadsr-PTH.drl Normal file Unescape Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Pot_Hole_NPTH.kicad_mod Normal file Unescape Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Panel_Dual_Slotted_Mounting_Hole.kicad_mod Normal file Unescape 3D Printing/Pot_Knobs/scaled_french_pot.mix | Bin 0 -> 406884 bytes ...uther_triangle_vco_quentin_v3_only_art.stl | Bin 0 -> 74084 bytes Docs/precadsr_layout_front.pdf | Bin 16561 -> 0 bytes main synth_tools/Schematics/SynthMages.pretty/Micro SPDT (3 pin).kicad_mod main precadsr/Docs/build.md 65 lines # Precision ADSR with retriggering and looping Binary files /dev/null and b/Panels/luther_triangle_vco_quentin_v3_only_art.stl differ Binary files /dev/null and b/Panels/label_test.stl differ surface("FireballSpellVertSmaller.png", center=true, invert=false); } module knurled_finish(ord, ird, lf, sh, fn, rn) { for(j=[0:rn-1]) assign(h0=sh*j, h1=sh*(j+1/2), h2=sh*(j+1)) { for(i=[0:fn-1]) assign(lf0=lf*i, lf1=lf*(i+1/2), lf2=lf*(i+1)) { polyhedron( points=[ [ 0,0,h0], [ ord*cos(lf0), ord*sin(lf0), h0], [ ird*cos(lf0), ird*sin(lf0), h1], [ 0,0,h2], Created on Tue Mar 5 20:19:51 2024 L1 : F.Cu front L2 : B.Cu back Drill file 'precadsr-panel.drl' contains plated through holes: merged.

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