Prusa i3 MK3 - Assembly Troubleshooting

13  FAQ - common issues when assembling the printer kit
13.1  Printer is rocking - YZ frame - geometry check
If your printer is rocking on the table, please check Step 11 of Y axis assembly - YZ frame -
geometry check.
All the components are cut, or drilled, by a machine for highest precision, but with uneven
tightening it is possible to warp the frame.
● Using your hand, try to wiggle with the frame sides and check whether some corners
are lifting up or not.
● In case you find some imperfections, release the screws, press the extrusions
against the FLAT SURFACE and tighten them again.
Pict.   41   -   Proper   way   to   tighten   the   frame,   plates   and   aluminium   extrusion   together.
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