Biqu H2 mount for Ender 3 with max print area
thingiverse
*** Update: added a BLTouch mount and made a 5015 fan duct. Not tested since I don't have the parts. If you print it let me know! *** This is a mod to mount a Biqu H2 direct drive extruder on an Ender 3 without losing print volume. Due to the larger width of the component compared to the stock hot end, you need to make a small modification to the Y axis to recover the lost build volume. I added the support for a M8 proximity switch for auto bed leveling. I suggest to print the bottom frame holder solid. It is compressed by the screw so you want the highest strength. The braket should be printed standing up to increase the robustness of the supporting arms. Supports will be needed for the topmost arm. The duct should be printed lying on the front face. I designed it flat to have a good print base. Block supports on the inner tube or they will be impossible to remove. I added a rib on the middle to support the top part. Support might be needed around the mounting hole. All parts have revisions! Thanks to Comte Lou (https://www.thingiverse.com/3d_lc/designs) for supplying the extruder model. This allowed me to design the mount while waiting for it to ship. https://www.thingiverse.com/thing:4740224
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