About this 3D model

I changed the overall shape of the part somewhat, and used hexagons instead of circles for the holes. But I thought the hexagons looked better untwisted, so I left them remain in their standard locations - which are along ISO curves for those of you who know about 3D geometry. This part printed in a little more than 23 1/2 hours using a layer height of 0.200 mm and a print speed of 80 mm/sec.