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MK8 Aluminum Extruder Kit With NEMA 17 Stepper Motor 1.75MM For 3D Printer RepRap Prusa i3 Note: This kit have TWO option: One is ( Forward Direction ) Bracket + Motor. The other one is just a ( Forward Direction ) Bracket .. Please note that before you buy it .... Description: This kit can help you improve your print quality by getting rid of filament slippage. Aluminum doesn't soften at printing temp like the plastic printed parts can, leading to less idler spring tension, filament slipping, bad prints. Hardware is included in the kit, but you might also need additional screws to mount heatsink with fan, for an example. Short distance Stepper Motor: 42HD4027-01 See supplied datasheet for optional 57 oz-in NEMA 17 stepper motor (The last picture) Package included: 1 x Aluminum main extruder body 1 x Aluminum tension lever 1 x Idler bearing for 1.75mm filament 1 x Brass drive gear 1 x High tension spring 1 x Assembly screws 1 x Stepper Motor, 40mm long body, with cable (if motor included option is selected)
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