I spent some time working with Taulman’s 645 Nylon filament over the last several days and I thought I’d give my two cents. First, for small strong small parts it has real potential I printed some incredibly strong parts. I extruded out a 245C and kept my bed at 70C. I tried painters tape, glue stick and Kapton tape and for me strait Kapton tape worked best. My biggest issue in fact was the print was really difficult to remove from the bed, I actually broke one of my glass plates getting a print off. Now I hope you recognized that I clarified that I had great success with small parts because in all my attempts to print larger more complicated models I encountered failure. Simply put I could not stop the model from warping once the model was a larger size. I tried temperature, infill, skirt, print speed, outer wall size and nothing could stop the warping. So in a nutshell if you need small strong parts like nylon washers or rod clamps it’s about the best filament out there but for large models you might need to look elsewhere.