Espresso aerator

Espresso aerator with a pretty magnetic base! Hardware needed: 9 Acupuncture needles: i used 40mm long needles, with a 1.5mmx30mm long shank (total needle length of 70mm) 2 magnets: 6mm x 3mm round Neodymium Magnets Counterweights: I used 5 pcs of 1 Nok coins glued in, but anything metal or other high mass object that fits in a 21 x 3,6mm hole would fit. (washers are a great low cost item you probably have at hand). How to print and assemble: The "Needle holder" is printed wit hthe 9 needle holes towards the build plate, this print needs to be stopped before printing Z = 49,40mm (BEFORE layer 247 if printing 0.2mm layer height), slip in the magnet (I would advise to use a small dab of superglue for the magnet to stay in place). The “Magnetic base” is printed on the back. I would advise to use 4 or more perimeters on this print. 0.2mm layer height. After printing both parts place a magnet on top of the needle holder (this way we can mark polarity, see picture), mark the face of the magn