My fit extruder and hotend combo, the in it's english name - "The extruding lobster", It has served me well this past year since I fit designed and built it.I was concerned with all direct extrude for most alu beam printe not taking into account the center of mass when designing their extruder. Yes they may not have lost 11mm of travel like mine does. But the increased moment of the mass due to the imbalance of the gantry would induce more vibratio aka "ghosting", and would require a lower acceleration and feed setting to get rid of such I designed the MagniLocus, the center of mass is as close to the center of the gantry's 20x20 beam as I could do, being limited with my manufacturing possibilities. They being sheet metal bending and 3d printing non-essential holding components, like the hotend and filament one sheet metal part is made up of Alu 5754 3mm thick sheet. Milled then bended in a manual bending current STEP configuration visually have a Ender 3 extruder, but with an offset to fit the dual gear RED extruder found on many sale sites, like Aliexpress and hotend fan is a Noctua 40x10 12V filament fa are radial 5015 24V faIncludes a built in mount for BL-touch, as close as it could get to the two filament ducts pressurizes and combines neatly directly under the nozzle. Usually I don't need to go above 25-30% of "air flow".