ULTIMAKER SeeMeCNC bowden extruder nozzle

I really wanted to convert my Ultimaker to a 1.75mm system. Way easier to find a variety of filament in the states. SeeMeCNC had a dual purpose extruder which handles 3mm and 1.75. They also have a nice hot endsetup for a bowden style printer that allows me to use smaller nozzles and they also sell blanks for making your own. The advantages of this setup is it only takes 30 seconds to swap out the hotend. I made an accessary clip that goes in the second hotend slot for a micrometer. You could al