Mendel90 square nozzle fanduct

thingiverse

This remix uses a Mendel90 x carriage fan, reworked for optimal hotend-nozzle performance. The switch to a square-shaped nozzle hole allows the hotend to stay safely away from the plastic duct, minimizing melt risk by maintaining distance between corners and the duct itself. In addition, the remix features extra internal supports within the duct to improve its ability to span large distances without defects or weaknesses. Reviewers are encouraged to take note of the image included with this update. No firsthand experience exists with printing this version yet, but experts anticipate trouble-free production. A parallel fanduct variant utilizing an e3d component is being developed; it will be posted separately at a later time. If successful prints can be confirmed, please inform both authors and interested viewers. To use this file correctly: First, print as you would the original nophead fanmount, paying special attention to settings. Materials should be higher-temperature ABS or similar plastics - PLA, with its lower melting point, will not suffice. Supports aren't necessary during production, making setup more convenient. Layer height is also non-critical, but an acceptable level of 25% fill provides good balance between structure and material usage. Print the STL as directed, orienting your printer's nozzle so it faces downward to prevent unnecessary stress or clogging in your system.