ShopSmith Power coupler

Single print with no supports. mind how tight it fits on the machine... too loose and you will melt the teeth, too tight...well that goes without saying. Printed mine over a month ago with no issues so far except when using on jointer on high speed... i did melt one...but i dont think that one that melted was to proper scale. There is a long and short version... no real reason but to experiment.