Air humidifier/washer modification

####This is my first post, so please bear with me 😊 I decided to recreate the vd_max Air humidifier/washer project. I had a different container, measuring 27.3 x 17 x 19 cm (5.5 liters). I decided to use it. It fit 40 sanded CDs. All the printed parts from the original project fit, except for the fan grille and the base-to-wall mount. I didn't reprint the mounts, just a different design (photo 4). The air intake grilles weren't quite right, but I didn't resize them – I just glued them together and put them away. I didn't have a 120 mm computer fan, but I did have 6020 mm fans. I used ones from Gdstime ( https://zozi.ru/169787.vfu3 ). I made a bracket for them so they were positioned 1-2 mm from the outermost CDs. I took the original grille and scaled it in a slicer to ~47.6% in X and Y. Later, I also made a cover, as the AI ​​convinced me that with such a small gap between the disks, air would flow around (maybe it was right, I don't know). Everything fits together like a sandwich, and all the screws are simply held in place by plastic (I use different lengths: M3x6, M3x8, and longer in some places). During testing, the disks were catching on the cover, so I trimmed it down a bit to avoid having to re-print it. I couldn't find a motor like the original, but I did have an FC-140RF 12-volt mirror drive motor. I used the same mount, just added some spacer, and everything holds together even without bolts. The problem is that this motor seems to spin much faster than the one in the original. When I connected it directly to the drive wheel with the discs, there wasn't enough torque, and the discs started spinning very quickly after a push. To slow it down, I decided to use an intermediate gear. There wasn't much room for it, so the gear ratio was limited. The first version was simply a pulley on a printed base, and it worked, but it was very noisy. I made the second version for standard F695-2RS 3D printer bearings, and it's much quieter. Now the only noise is from the motor; its noise level is about the same as that of a regular ultrasonic humidifier. Even with the dual gear, the discs still spin at 24 rpm, which is faster than the required 6-10 rpm. But in practice, this isn't critical; water doesn't fly around, the discs are always wet (they don't have time to dry), so I decided not to add a second gear pulley. Water temperature greatly affects evaporation rate, and it cools VERY quickly as it evaporates. At a room temperature of 22-23°C and 30% humidity, the water equilibrium temperature in the air washer was 14°C, and evaporation was slow. In this mode, approximately 2 liters of water evaporated per day, which was insufficient. To increase the rate of water evaporation, I tried placing the air washer next to a plastic heating pipe (40°C), but this only marginally improved the situation. Therefore, I decided to move the container directly onto the pipe. Together with the bracket, it fits very securely (EVERYONE'S HEATING PIPES AND WINDOW SILLS ARE DIFFERENT, so the bracket may not fit). With the air washer running on a hot radiator, the water equilibrium temperature rose from 14°C to 17-19°C, and this system can evaporate 3-3.5 liters of water per day, which is acceptable for a small space. The models also include a plug for the hole in the lid, so air is drawn in where it's needed, rather than through the hole. Because the motor is positioned on top, you need to remove the rubber bands to open the sink lid. To make refilling easier, I simply made a hole in the lid and poured water through a funnel. Later, a bottle adapter can be fashioned and attached to this hole to increase the reservoir's capacity using an automatic refill system. However, this may not be necessary.