CR-10 / Ender 3 Direct Drivinator - for Hero Me fan duct

thingiverse

To keep my Hero Me fan duct functioning properly, I removed a small section of the right-hand side lip that secures it to the metal bracket on the printer. This modification was necessary because once the Hero Me fan duct is installed, you cannot remove or install the right-side carriage wheel bolt. However, with this modification, you can now rotate the entire drivetrain 90 degrees clockwise, insert the bolt into the drivetrain, and then swing it back 90 degrees counter-clockwise to secure the other bolt in place. I also observed that my original print exhibited a noticeable up-and-down movement during retraction. To address this issue, I added extra support on the left side of the fan duct. This modification is discreet and won't interfere with the bed leveler unless one is present. In my first print, I employed 30% infill (cubic subdivision) and four shells. For this modified version, I increased the infill to 50% (cubic subdivision) and maintained four shells. Kudos to the original designer Madau3D for creating an exceptional design! This mod has been the most impressive upgrade I've made to my Ender 3 to date. You can view the original design on Thingiverse at https://www.thingiverse.com/thing:3589452.