Prusa MK3/S Z-Axis-Top Ball Bearing Upgrade

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New version of the Z-axis top with additional ball bearing for more stable guidance of the trapezoidal spindle.
I don't know if you really need it or the print quality is affected but I feel better with it :-)

You need only 2 ordinary 608 ball bearings.

Use for MK2, MK3, MK3/S

Print instructions

My recommendation:
Print in PETG 0.15mm layer height, 20% infill gyroid, no support.

Standard:
Print in PETG or PLA 0.2mm layer height, 15% infill gyroid, no support.