Tevo Tornado Twin 5015 Fan Ducts

thingiverse

The existing cooling fan does not adequately cool down the system, and stronger airflow is required for better performance, which led me to believe that two 5015 fans would be more than sufficient for this task. I designed this setup using Autodesk 123D Design and sliced it with CURA before printing it in green PLA at a temperature of 210 C. An updated version 3 file has been created with the lips extended by an additional 1mm and tilted slightly downward, but I have not yet had the opportunity to test print it. To upgrade the cooling system, follow these steps: First, remove the existing fan and cut its wires while ensuring the printer is turned off. Next, solder the wires from the two 5015 fans in parallel with those of the stock fan, taking care to match their polarity. Apply heat shrink tubing over the soldered connections, as the 5015 fans operate at a voltage of 24 volts. Then, remove the four screws holding the extruder fan and carefully place the printed twin fan ducts onto the extruder housing. If necessary, secure them with super glue to ensure a tight fit. To prevent stripping the threads in the extruder fan, avoid over-tightening the four screws that hold the fan ducts in place. Once you have completed these steps, slot the two 5015 fans into their respective ducts and secure them using a small amount of super glue. Upon testing, I discovered that the 5015 fans are extremely powerful but tend to vibrate excessively. To balance them, follow these procedures: First, remove the fan from its mounting bracket and place it on a hard flat surface. Turn it on and observe whether it vibrates or makes noise while standing upright. If it does, then it is not balanced. To correct this issue, cut a small strip of double-sided tape with adhesive backing and stick it randomly onto one point on the fan's hub. Turn the fan back on and assess its performance. If the vibrations decrease, you have successfully balanced the fan. If not, simply adjust the position of the tape to the left or right until the desired result is achieved. A bit of patience will be required to achieve optimal balance, but it is worth the effort. For added permanence, consider applying a small amount of epoxy over the area where the tape was applied. However, in my case, the tapes have held up so far without needing this extra measure.