Dillon RL550 Powder Measure Knob

Drew up a new powder measure knob for adjusting the powder charge for a Dillon RL550B reloading press.  Uses an M3 screw to secure it against the flat part of the bolt head.  Recommend printing using PLA with 0.08mm layer height to get the threads to work out.  

I had issues with the original (I forget what, this was a while ago) so made my own version.