These are the plastic parts needed to build a automatic pluviometer. When used with a Yocto-Knob this thing will allow to find out if the weather is as bad you think it is. These are plastic parts needed to build an USB pluviometer. They are meant to be used with a Yocto-Knob ( yoctopuce.com/EN/products/usb-sensors/yocto-knob ), but any electronics with GPIO, such as Raspberry PI or Arduino, would probably do as well. You will find here instructions for assembly. Details about electronics and programming can be found on our blog: yoctopuce.com/EN/article/how-to-build-an-usb-pluviometer Except for one part, this thing is assembled using screws and brass threaded inserts. This allows to assemble and disassemble it quickly and easily. Moreover, the final assembly is rock solid. Additional Hardware You will need some non-printable hardware to build this thing. (*) If you are using ABS, you may want to try Methyl-Ethyl-Ketone (MEK). Actually it's not glue but a powerful ABS solvent allowing to literally weld parts. Tools Mounting steps STEP 1 Place the threaded inserts with a solder iron in the base and the body STEP 2 Glue the two posts on the base STEP 3 Place the bucket, the stainless pin will act as an axle. Place the headless screws, those are meant to tune the bucket course. STEP 4 Wire the led, the resistor and the photo-transistor. Make sure it works properly then use a glue gun for insulation, it's gonna be quitte moist in there :-) STEP 5 Place the body STEP 6 Place the top STEP 7 Place funnel and the top grid. Actually those two parts are printed for the sake of having a fully 3D printed device, but a funnel from the neastest harware store would do much better as it would be smoother and non porous. Assembly is complete, now you need to write the program needed to count the bucket tilts. For more info on the programming and electronics, see yoctopuce.com/EN/article/how-to-build-an-usb-pluviometer One more thing: these parts were printed with a Dimension Elite printer. This printer features a twin head with soluble support, so we didn't have to care about hangovers. If your printer does not feature soluble support you may have difficulties to print the bucket and the funnel.