row_2 = row_1 + v_margin + 12; top_row = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", width_mm - 10 ohms between U1-14 and U2-1 when off, more like 1M ohms when off Single Step - 12V through 10k Ohms to U-1-14, more like 1M ohms when off Glide In - ~27K to U3-8? No, transistors maybe activate? - Clock.