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3; difference() { union() { cube([board_width, board_height, thickness]); cylinder(thickness+standoff_height, r=standoff_radius, $fn=360); cylinder(h=thickness+standoff_height, r=standoff_radius, $fn=360); cylinder(h=thickness+standoff_height, r=standoff_radius, $fn=360); cube([cutout_width, cutout_height, thickness+3]); cylinder(h=thickness+standoff_height+3, r=hole_radius, $fn=360); vertex 0 -8.07502 5.88782 facet normal -0.665275 -0.392534 0.63508 facet normal -0.918689 0.264755 0.293113 vertex -4.13938 5.6469 10.3435 facet normal -0.590358 -0.804069 0.0703596 facet normal -0.000135683 -0.115801 -0.993272 vertex 4.94225 -0.762348 21.7809 facet normal 0.115912 -0.000107246 0.993259 facet normal 3.318487e-001 -5.689132e-001 7.524721e-001 vertex -1.343181e+000 3.927967e+000 2.488700e+001 facet normal -0.072938 0.0676765 -0.995038 vertex 1.87301 9.81867 0.0427407 facet normal 9.342549e-01 -3.566057e-01 -3.024607e-04 vertex -9.073906e+01 9.614893e+01 3.455000e+01 vertex -9.151829e+01 1.030637e+02 1.055000e+01 vertex -1.028490e+02 1.035781e+02 2.550000e+00 facet normal 0.31635 0.464833 -0.826954 facet normal -0.0974474 0.989341 0.108207 facet normal 0.77078 0.0759133 0.632562 vertex -8.58011 -1.70669 5.33536 facet normal -0.528205 0.643699 0.553761 facet normal -0.956957 0.288279 0.0335818 vertex -1.02637 -5.38893 21.833 vertex 3.03604 4.44467 21.8214 facet normal 0.940718 0.331812 -0.0703587 facet normal 0.500005 0.866022 0 vertex 0.927051 -2.85317 9.999 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## 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 ``` git clone --recurse-submodules git@github.com:holmesrichards/precadsr.git git submodule update ``` ``` git clone git@github.com:holmesrichards/precadsr.git git submodule update Find and replace last few thin traces, fix teardrops and gnd fill Embiggen traces, add teardrops f63cfba9541079f9f5e1341fca38abad6837ea65 Add 55k-ish resistor to coarse knob to fix tuning range main ENV/Envelope/Envelope.kicad_sch 1474 lines Binary files /dev/null and b/Schematics/Fireball_VCO.pdf differ b11a8d3187 Go to file 56529bef3a Updates from real TL0x4s 5cacbfea2e Add polygon calculation for wing plates 5cacbfea2e523d618ea3bcbc0bca9c37eb36f10d Update README.md * [Schematic](Docs/precadsr.pdf) * PCB layout: front, back How to use for rounding teh top edge. (Other "top rounding *" parameters are only relevant if checked.) enable_top_rounding = false; pokey_outey = [pokey_outey_value, pokey_outey_value,0]; // there's an arrow shaped hole you can create a D-shaped hole, set this value to zero. // Length of the main (cylindrical or conical) shape. [mm] knob_radius_bottom = 14; // [1:1:84] v_margin = hole_dist_top*2 + thickness; v_margin = hole_dist_top*2 + thickness; v_margin = hole_dist_top*2 + thickness; width_mm = hp_mm(width); // where to put reinforcing walls; i.e. The thickness.

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