Cupcake Nozzle W/ Integrated Heating and RetainerI'm still debating how I want to retain the assembly into the head. The groove that is there now would be for wrapping the nichrome wire so that all the heating occurs in the nozzle rather than through out the tube. The idea was to make the nozzle part out of brass or stainless and fitting in a stainless feed tube. Rather than threading the tube into the nozzle I was thinking of braizing it in. I googled info on braizing such dissimilar metals check and found the below page:http://www.welding-advisers.com/Brazing-stainless.html