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The solution for me was to change the x axis rods to 8mm.
After some searching on Hypercube Evolution x carriages I found this thing: https://www.thingiverse.com/thing:2449084
It appear that the x carriage was modified to accept LM10UU linear bearings. Maybe this can help you.
If successful, please share your result.

HyperCube Evo Parts for 20x20 Extrusion
by fsadak