hyttyskuiskaaja

thingiverse

This is a mosquito trap that uses a standard 120mm computer fan to catch mosquitos that fly by. It overpowers mosquitos flying strength and sucks them in the box where they can't escape as long as the fan is on. You can either build a version that uses a power adapter or a version that runs on batteries. By default, there are no UV lights or other baits but you can add one if you wish to do so. In the Nordic countries, there are plenty of mosquitos during the summer so the only bait you need is yourself, just place the box near you. In Asian countries, there are far fewer mosquitos but they spread diseases so adding bait is far more important. Mosquitos are attracted to co2, sweat, prefer dark non-reflective colors, alcohol, and heat. If you add a led the recommended wavelength should be something around 400nm. * There is a circular plane in the middle of the top mount so that you can glue a bottle cap to add any bait you wish, alcohol, and sweat works obviously. * at the top of the box, there are two holes that you can use to hang the box from the ceiling. * for the mesh, you can use mosquito net fabric or just print a grid. I don't have a model for it but you can easily create one directly with prusa-slicer. ### 3D-printed mesh Create a box (116x116mm) that fits the slider and set the height to 2 x the layer height you are printing, use rectilinear infill at 35%, set solid layers to 0 and change top and bottom fill patterns to rectilinear and you have a mesh that you can use. ### What kind of a fan to use? Most of the 120mm fans run on 12v, however more powerful server fans can run up to 30 volts so you probably want to use a step-up converter in those cases. If you are planning to build a battery version you should try to get a fan that has a very low power usage but still a decent CFM. For indoor use, you should also consider how loud the fan is, Noctua and Papst are good brands to start with if you want the best performance. The box is big enough so that you can use 40mm thick server fans, but they will use more electricity than regular 20mm fans so it's better to use a wall adapter in those cases. # BOM 1x 120mm fan 4 x M3 8mm head cap screw ### 20mm thick fan requires: 4 x M4 30mm countersunk flat head screw ### 40mm thick fan requires: 4 x M4 50mm countersunk flat head screw ### for continuous use: 1 x power supply for the fan ### for battery power: 2 x 18650 li-ion battery 2 x flexbatter18650Px1 holders https://www.thingiverse.com/thing:456900 1 x step-up / boost converter (MT3608 for example) superglue or hotglue for mounting the electronics box and components