Cute barometer

cults3d

The cute barometer relies on constant air pressure trapped inside of the jar. 1. Print all pieces with resolution 0.2 or lower, as printing them at 0.3 might leave gaps between layers and filaments, requiring a tight membrane enclosure. For low-quality printers, increase Extrusion multiplier factor to 1.1 for better results. 2. Make a hole in the center of the "Barometer lower half" after printing, since it prints more smoothly without perforations. 3. Find a small jar with its own sealing cap, ranging from 200cl to 400cl in size, and make a large enough hole for the printed enclosure's lower half tube to pass through. 4. Glue the lower half to the jar cap using epoxy resin or thick glue that prevents air escape from the jar. If successful, after sealing the jar, the air inside should only communicate with the lower half of the barometer enclosure. 5. Create a rubber membrane from a rubber glove or thick balloon and place it between the two halves of the enclosure. Secure the flange using M3x10 bolts and nuts. 6. Insert a small piece of wire or needle into the rooster's head, heated with a soldering station or preheated lighter for better insertion. 7. Once assembled, hold the jar in your hands to see a visible movement of the needle, which indicates that the air inside is expanding due to mild heating, revealing whether everything is sealed properly. 8. To set the scale to neutral position, open and re-close the jar cap on a day with 1013 hPa atmospheric pressure.