The 4 parts that make up the Mini-LCD temp and humidity holder are printed without supports in the material of your choice; I just printed this one in PETG and the backing cover is screwed on as well as the AA battery cradle, after screwing it together, its best to remove the screws and trim off the plastic around the holes where it will bulge up a little then reassemble it, and I have then solder the two wires directly to where the button battery contacts are in the temp humidity sensor and to the 2 battery contact plates, the cover that snaps over to cover the battery is a little fragile if you have to remove it, using the AA battery instead of the A76 1.5V it will now last a lot longer.