CR-X fan mount wind duct

thingiverse

This remix builds upon my previous design with significant improvements. I adapted the fan mount and wind duct to accommodate the CR-X's round hot end and taller heat sink for enhanced cooling. The design comes in two versions: 4010 cooling fan + 4010 blower fans, and 4020 cooling fan + 4010 blower fans. Both have a side version of add-on mounting holes for added flexibility. I've created four STL files to cater to different requirements: * crxdualfamowidu.STL: 1 x 4010 cooling fan, 2 x 4010 blower fans * crxdualfamowidumo.STL: 1 x 4010 cooling fan, 2 x 4010 blower fans and 2 sets of mounting holes * crxdualfamowidu4020.STL: 1 x 4020 cooling fan, 2 x 4010 blower fans * crxdualfamowidumo4020.STL: 1 x 4020 cooling fan, 2 x 4010 blower fans and 2 sets of mounting holes A well-designed fan mount, wind duct, and add-on provision make this design perfect for many 3D printer hot ends. For a good design, I consider the following: 1. Efficient Cooling: * The hot end cooling duct is conformed to fit the fan blade circle and heat sink rectangle, ensuring 100% airflow through the heat sink. * Filament cooling fans share duct walls with hot end cooling ducts to minimize pressure loss. * Filament cooling ducts point directly at the hot end tip from both sides for optimal cooling. * Cooling fans are placed high up to capture cooler air, while hot end cooling fans are positioned as high as possible with an optional hot air defender. 2. Easy Printing: * The design is optimized for easy printing, requiring minimal support and short bridging distances. * Support structures are only 4mm high, making them easy to remove after printing. * Two hooves at the duct ends ensure better adherence to the print bed, which can be cut off once printing is complete. 3. Lightweight, Compact, and Sturdy: * All four models weigh less than 20 grams. * The conformal duct design reduces the overall dimension without compromising performance. * The compact size makes the design sturdy, with 4mm-thick screw holes providing added stability. 4. Easy Installation: * Only two screws are required to lock the hot end in place (with 4mm thick screws needed). * Fans can be easily inserted into their designated positions without any additional hardware. 5. Versatility: * The design is hot-end dependent rather than machine-dependent, allowing for easy installation on various machines. * Four different models cater to diverse requirements: 1(h.e. cooling fan) + 1(flm cooling fan), 1 + 1 + 2(add-on provision mounting holes), 1 + 2, and 1 + 2 + 2. * Two sets of add-on function mounting holes provide flexibility for added features. 6. Excellent Print Visibility: * The design ensures excellent visibility to the print tip, making it easy to monitor progress. 7. Fun: * Designing and making this fan mount and wind duct is a fun project that allows you to experiment with add-on shafts and create something unique.