GT2 2mm Gear profile maker

thingiverse

#Introduction The original parametric scad file was impressive, although I found it was probably a bit more complicated than it needed to be. Code reuse is generally a good thing, but not if it comes at the cost of understandability. I think the approach of having a common library file, with the reusable functions, such as "space_teeth" etc makes sense. Then each gear type can be its own module. This is nice because constants specific to that module exist only within that scope. I haven't implemented every gear type (as per the original), however it would be trivial to continue to refactor the original into my pattern. # How To Use The demo project included, will render a grid of incrementing gears ``` scad include <gt2_2mm.scad> ROWS = 3; COLUMNS = 3; MIN_TEETH = 8; SPACING = 5 * ((ROWS * COLUMNS) / 4); INC_STEP = 2; for(n = [0:INC_STEP:ROWS * INC_STEP]){ for (m = [0:INC_STEP:COLUMNS * INC_STEP]){ num_teeth = (m + MIN_TEETH) + (2 * n + MIN_TEETH); echo( "Creating gear with ", num_teeth, "teeth, at position x= ", m, " and y= ", n ); translate([SPACING * m, SPACING * n, 0]) gt2_2mm_gear(num_teeth); } } ```