Tusken Raider Rebreather / Respirator

I am building a Tusken Raider costume. One item I needed is the rebreather/respirator that one sees under the chin of the Tusken. I used this thread in Krayt clan to come up with my own design based on those dimensions: http://www.kraytclan.com/forum/topic/2189-accurate-moisture-traprespirator-dimensions-logic-check/

To print, print qty1 Cylindar, qty2 TransitionBlocks and qty2 EndCaps. I printed in PLA so I used gel superglue to glue the TransitionBlocks to the EndCaps then I glued the