had high hopes for it. It's actually good quality and STRONG, but probably too hard. and possibly reduced Z motor and lead screw life. The brass Z-shaft nut (loosened) on the Ender 3 (Pro) was designed to provide a little play to PREVENT binding. Adding this mount will not allow you to play the way you want. This creates a bond. Depending on the build tolerances of your printer, you may find that the Z motor may be set too far back. It doesn't matter as the z-bar's brass nut helps with this, but once you have the top bracket installed it will compress the top of the z-bar and actually bend the bar in an arc. Haven't tried the 3D printed top mount. . But listen better, how can this bring "more returns"? I find it better NOT to use that metal top bracket and that's probably why Creality didn't include it.
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