AM8 X Carriage & 40mm Rear Fan Duct

thingiverse

I am excited to share my X carriage design for the Anet A8 and similar printers. My main objectives are creating a lightweight assembly, incorporating a 40mm part cooling fan, and ensuring easy access to the hotend. The Noctua 40mm fan will be used for this design, along with other compatible fans. Instead of traditional screws, silicone press-in anti-vibration mounts will be employed to secure the fan in place. You can find these mounts on Amazon at https://www.amazon.com/Noctua-NA-SAV4-silicone-anti-vibration-mounts/dp/B071W6KYCG. Please share any images you create from printing this design, and let me know if there are any issues so I can address them promptly. Enjoy! UPDATE: After conducting a test print of the parts, I discovered that the fan sits 2.5mm below the nozzle. To rectify this, I have temporarily removed the file to make some adjustments. UPDATE: On January 9th, 2018, numerous changes were made to this design, prompting me to remove and replace all original files with new versions. ADDITIONAL UPDATE: The BLTouch mount has been modified to elevate it. Please note that in the provided images, the BLTouch is shown in its "sensing" position, which places it below the nozzle. ANOTHER UPDATE: The LM8UU bearings used are 46mm C-T-C; I have also included a bearing measuring 45mm C-T-C. The files are clearly marked to help you determine which one fits better based on your specific measurements. UPDATE: On January 11th, 2018, minor changes were made to the BLTouch mount to enhance its strength. UPDATE: On January 14th, 2018, with assistance from Brad on the Anet A8 3D Printer / Unboxing Facebook page, it was discovered that the fan shroud would collide with the acrylic frame when returning to the X endstop switch. This suggests that this design may be exclusive to the AM8 for now. I will be installing this carriage on one of my Anet A8's in the coming days and testing its functionality. UPDATE: On January 18th, 2018, the assembly has been successfully installed on my latest AM8 frame, resulting in a 67g weight reduction compared to my previous setup. Since this design is compact, it was essential to relocate the X axis switch so that it would make contact with the carriage. This updated file is now available for download. UPDATE: On January 20th, 2018, I replaced the fan shroud with a new version after conducting performance tests. The original shroud wasn't functioning optimally, but the new one has shown significant improvements. A small modification was added to the BLTouch mount, creating an access hole in the top. Additionally, a second version of the BLTouch mount was created, turning it 90 degrees towards the front. UPDATE: On January 24th, 2018, I introduced a new carriage with 2.8mm holes, allowing you to directly screw 3mm screws into the plastic without needing brass inserts. This carriage is designed for a rod spacing of 45mm. UPDATE: On March 17th, 2018, due to limited airflow through the fan duct, I redesigned it to enhance airflow significantly. This new design has been successfully tested on my current printer and is now available for download. If you decide to print these files, please share your experiences by posting images and leaving a comment. If you encounter any issues with tolerances or other aspects, kindly let me know so I can address them promptly. Please consider showing appreciation for the work done by purchasing a coffee through the tip icon.