Zahn Cups

Quick and dirty effluent times. Not exactly adherent to ASTM D. The hole sizes for #1 and #2 are not to the standard. The sizes are +.05-.15 based on my calibration tests. The gemoetry has been changed from a true hemisphere into a cone/hemisphere to mitigate the effect layer lines will have on time. Changes have also been made so no supports are needed to print. The handles are tapered so they don't have to be glued in place. One could only print 1 handle for the whole set. There are overhangs on the taper which may give a warnning during slicing. These overhangs are designed to bite into the cup and should not be supported. Cups #1 and #2 were “calibrated” using water. I am aware water dose not have a visocsity in the range of the Zahn Cups. I used water because it was the only liquid I had access to which had a relatively known viscosity. Honey, maple syrup, joint compound, olive oil, … They all vary by brand, type, and temperature making them poor cailbration medium. I tried 4 diff