About this 3D model

i printed it. it works. an old Tappan gas stove missing 4 knobs, i printed all new ones, because i had to design a new one in sketchup, since all the other knobs on thingiverse didn't work for a regular stove. and i worked way too much on it as a newbie. i tried the first print out on a Fridgidaire, and it works good. 1 3/4" diameter of flange, 1/2" depth of flange, 1/2" tall x 5/16" thick "thumb turn" 1" depth" receiver hole for 3/8" round, bisected 1/4" by flat (see knob back pic) 5/8" overall shaft protrudes 1/2" below solid knob. (full support, for print, pull it off warm for easy removal, like pulling a ribbon.) For PLA, .27, 85%, full support, because of end receiver. 3 hours, 08minutes. it has a couple lines across face( see pic), but if you don't care, i included x3g file for sd card, and gcode, otherwise, you can fix the non manifoldness, and generate new gcode.