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BackJLCPCB is still the best option. This page is to collect findings from researching other potential fab plants. Our standard design is the decade counter expects CLOCK to pass 1/2 of V+ (i.e. 6v) but many external clock sources cycle between 0v and 5v max // gate out // input sockets surface("FIREBALL VCO.png", center=true, invert=false); // color([1,0,0] // surface("FIREBALL VCO.png", center=true, invert=false); text(string, size, halign=halign, font=font); // draw panel, subtract holes union() { cube([board_width, board_height, thickness]); cylinder(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 7.34398 6.86102 vertex -5.20899 -5.17982 6.86125 facet normal 0.188053 0.243743 0.951433 vertex -0.221399 -7.2243 6.88859 vertex 7.18562 -0.173952 6.88408 facet normal 0.768414 -0.630746 0.108161 facet normal 0.0620393 0.0777949 -0.995037 vertex 7.43617 6.66225 0.0393247 facet normal 0.0868533 0.0464242 0.995139 vertex 5.23977 5.38158 6.0001 facet normal -0.114495 0.30557 0.945261 facet normal 0.876739 0.468635 0.108209 vertex -3.23494 -4.84143 21.335 facet normal -0.0568312 0.0727061 0.995733 facet normal -0.468318 0.782844 0.409675 vertex 5.77934 4.34766 7.60514 vertex 5.75031 4.43088 7.41293 facet normal -4.225759e-001 -1.881454e-003 9.063256e-001 facet normal 0.223445 0.736593 -0.63836 facet normal 0.0846398 0.279017 0.956549 vertex -4.48624 -6.71414 5.88782 facet normal -0.049752 0.0861726 -0.995037 facet normal 6.444580e-01 -8.335477e-04 -7.646392e-01 facet normal -0.915295 0.396591 -0.0703562 vertex 1.9454 -8.52337 12.4333.