Update: October 25, 2021 I've been using this kit for about 10 months and have removed the hot end to assemble the dual extruder. Hotend still works perfectly, comes in a box with spare parts. The extruder is still ok, I bought a second one with a new stepper. The gearbox has a few signs of wear but is in order. I've used multiple spools of filament and countless hours of printing since installing it. I would still recommend this upgrade kit. Installation is easy if you are familiar with 3D printers. Many YouTube videos show you how to replace these parts. Works well. Took care of my constipation problems. The metal extruder also looks prettier. I would say it's worth the money. The temperature remains stable and heats up quickly. I don't see anything wrong with that.
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