Renkforce RF100 Fan Duct

thingiverse

Here is the rewritten text: Easy to assemble active cooling system for RF100, utilizes existing extruder fan. Update: v2 now with larger distance from nozzle. Update: now with adapter for vertical mounting of fan. Prints with 0.2mm layer height. Remove black hood over print head (makes printer unnecessarily loud). Remove extruder fan screws. (Take this opportunity to add a few drops of oil to the bearings. My fan was whining after only two weeks.) Insert cooling fins from below, through nozzle and into cooling ridges. (Depending on preference, drill out holes to 3mm. If I had designed them at 3mm, the print quality would be worse.) Reattach fan screws. Only three of four screws fit for me. Looks like they were screwed in crooked at the factory. Have fun with this. Adapter for vertical mounting of fan: Follow steps 1-3 above. 3a. Break off upper cooling fin cover plate. Attach adapter to fan, using its own screws (long ones on bottom, short ones on top). Carefully insert fan into fan holder. Done. Advantages of installing a vertical fan: With better airflow, the fan has less pressure against it. The reduced pressure and horizontal mounting reduce stress on bearings, making it run quieter (and likely longer). Note: Since the fan now presses slightly against the Teflon tube, mine developed a small hole. If this worsens, attach a pressure distribution gasket (a small plastic tube) at that spot. Print Settings: Printer: Renkforce RF100 Rafts: No Supports: No Resolution: 0.2mm Infill: None