3D Printer Bowden Extruder Dual Drive BMG Extruder, High Performance Parts for Ender 3/Ender 3 Pro/Ender 5/Ender 5 Pro/CR10,Geeetech A10/A20/A30 Pro, Artillery Sidewinder and Other Printers

?Reading those tips before use? ?Tip#1: For the Stepper Motor Mounting Bracket, it is not guaranteed that all customers will use it. If your printer has its own motor mounting bracket, you only need to use your own. ?Tip#2: The internal filament feeding hole is small and precise. To ensure that the filament can be inserted smoothly, you can screw the spring to the loosest position firstly and then tighten it when the filament is inserted. ?Tip#3: The reference value of E-step is 420. Do an Estep calibration to get exact estep that fits your printer. Packing List: ? BMG Extruder *1 ? BMG Gear *1 ? Motor Bracket *1 ? 1.5mm Allen Key *1 ? 2.0mm Allen Key *1 ? M3*35 Screw *3 ? Teflon Tube 2*4*100mm *1 ? Installation Manual *1 ? Transparent Box *1