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▉Name:1.Shorter drive gears 11mm vs 15mm2.Hardened filament drive gears3.Weight reduced to ~135 grams4.Smaller more compact dimensions (11.6% shorter)5.New motor design offers ~40% increase in pushing force in real printing conditions and much improvedacceleration performance6.Flipped drive gears – filament path closer to the extruder center for a more balanced design and perfectfit on de1ta printers as well7.Stainless steel filament exit guide with 0.2-0.3mm clearance to drive gears for best TPU printingexperience and extreme wear resistance when using abrasive filaments.8.High temperature resistant injected housings, GPA129.Machined PEEK secondary drive gear sleeve10.Tension mechanism with grab screw design (Captive Grab Screw)11.Mounting screws in line with filament exit path – improving housing stiffness and easier mounting12.Perfectly aligned filament path13.New smaller and better PTFE input coupler14.Motor position rotated by additional 10 degrees for easier maintenance and assembly15.Filament sensor add on with auto load and unload button add on feature16.And many more small changes to improve mechanical accuracy and design look• Steps: 690 steps/mm @ 16 micro-stepping• Max. instantaneous speed change (jerk): 600mm/min(RRF), 10mm/s(Marlin) (recommended 300/5)• Pressure advance: 0.02~0.03s - to be calibrated• Retraction: 1~1.5mm - to be calibrated• Retraction speed: 120mm/s• Motor current: 1.2A Peak or 0.85A RMS (LDO-36STH20-1004AHG)• Acceleration: 10000 mm/s2 *• Normal motor operating temperature: 60-75°C* The extruder itself without filament can handle acceleration up to25000mm/s2. Adding weight of the filament it drags along itsrecommended to have acceleration limit set not above 10000mm/s2
