Manta Compact Fan Duct & Tool Change System

thingiverse

Although I thoroughly enjoy my Hydra Fan Duct design, both of my Ender 3 Pros have exclusively 4010 ducts with a Bowden system. Therefore, I thought they may be better suited with a more compact lightweight system that provides some expansion versatility but keeps the base unit to a reasonable minimum. I have since expanded the concept to use 5015 fans and the ability to attach them to both Direct Drive and Bowden tool heads. The design now includes various versions for different printers, including the Ender 5. The compact system has been optimized using CFD testing with Simscale, and I have uploaded some images of the results which I have used to fine-tune the duct designs. When using a Volcano Heater Block, you will need to rotate it by approximately 5 to 10 degrees to clear the lower pulley mount on the mounting plate. The Direct Drive Duct Bases can also be used for a Bowden setup since the RH fixings for the WM Upstand are identical to both base types. However, if using the Creality dual gear extruder, you will need to replace the tension bolt with a bolt that has a traditional hexagonal head and use a spanner sideways to tension it in this orientation. The parts print without support (the base ducts print upside down) except for the rear duct mounts which require some support. I have included some sacrificial layers in some of the holes in the mounts which will need cleaning in addition to the supports. When printing, it is suggested that parts be printed in the orientation uploaded. The WM Upstand and Clips will require either a very slow print speed or a raft due to their small footprint. Two sizes of Wire Management clip are included, but there is also a rib on the inside of each clip which can be shaved if further cable space is required. I have included 2 sizes of clamp for the V6 versions as the tolerance can differ with different filaments and printers. They are very small parts so will not take long to create a test print of each. All the base ducts print upside down, make sure your build plate is clean to provide a neat finish. I have printed and tested prototype parts for 5 printers including 4010, 5015, stock, V6 and V6 volcano versions with both Bowden & Direct Drive tool heads. Clearly with so many variations I may have missed something on the ones I have not tested but hopefully not anything major. Update:29/09/20 Uploaded Step File for the 5015 V2 Ducts with larger duct apertures. Update 08/08/20 Uploaded V2 version 5015 ducts for both the V6 Standard & Stock Versions. The V2 versions have a slightly larger duct aperture to allow more air volume with the 5015 fans. Update 12/07/20 Uploaded a Stock Only BL Touch Bracket which is 3mm shorter than the universal bracket on a member's request. This will not fit the V6 versions. Please remember to adjust the offset in your firmware by 3mm if using this part.