row_2 = row_1 + v_margin + 12; row_1 = vertical_space/7; row_2 = working_increment*1 + row_1; working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; col_middle = col_left + (15.6 + 1.5 + 7 segment green, https://docs.broadcom.com/docs/AV02-2553EN -1 overflow 7 segment yellow LED with right dot One digit 7 segement hyper red 7 segment high efficiency red, https://docs.broadcom.com/docs/AV02-2553EN -1 overflow 7 segment green LED, http://www.kingbrightusa.com/images/catalog/SPEC/CC56-12YWA.pdf Single digit 7 segement super bright orange LED with right hand decimal, https://docs.broadcom.com/docs/AV02-1588EN 2 digit 7 segment green, https://docs.broadcom.com/docs/AV02-2553EN One digit 7 segment display 38.1mm 1.5inch single digit 7 segment orange LED Single digit 7 segment green LED, http://www.kingbright.com/attachments/file/psearch/000/00/00/CA56-12SEKWA(Ver.7A).pdf 4 digit 7 segment yellow LED with right dot One digit 7 segment high efficiency red, https://docs.broadcom.com/docs/AV02-2553EN -1 overflow 7 segment green LED with right dot One digit 7 segement blue LED with left dot Overflow +- 1 red LED display Dubble digit hyper red LED with left dot Overflow +- 1 red LED Single digit 7 segment green LED.