This is my 1st 3d creation from scratch. It is something that I have never been able to locate in a 3d print media or in a model kit. This is the system the Germans planed to use to get their Maus tanks across rivers with (bridges wouldn't hold 207 tons). As far as I can tell it wasn't made and only the blueprints exist for it. The idea was to water proof the tank by removing the normal front and rear plates , sealing them off with closed plates and installing this snorkel to stick above the river and drive it under water. All the measurements for this came (roughly) from the diagrams located in Panzer tracts No 6-3 and Kampfpanzer Maus. It is in 1:35 scale and prints in 4 parts: The replacement front plate with vent covers adapted, the bottom, middle and top tubes. (note the top and middle tubes are in 1 file here for convenience in printing, no need to use supports on them. the plate and bottom tube use minimal supports). Once glued together just add wires between the hooks on the top of the middle tube to connection points on the tank hull. This is in very simple form and I hope to add more detail in the future to it. (I'm still very novice here) For the rear plate just turn my previous issued rear deck plate file over to hide the vent slats. When I get some tie I will try to create all in 1 piece printable version of this.