
I bought this MGN12 guide for CoreXY assembly and I was pleasantly surprised. I usually have to repackage the bearings when assembling them, but this guide came out of the box fully functional. One thing related to the one I received was that I had small dents and scuffs on the sides but after cleaning. It was immediately smoothed out with some kind of polish. I'm sure it will work well in my build and last a long time.

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