Repeat the following steps for all three extrusions installed in the previous step

Measure the gap between the two extrusions in multiple positions

For a 200 build, the measurement should be 170mm

For 300, 400 & 500 builds, the measurement should be 220mm

If adjustments need to be made, loosen the six marked M6x12 screws, adjust the position and then re-tighten them

As previously instructed, use an engineers square to check the frame for squareness

These measurements are critical to ensuring the CoreXY components are positioned correctly

Spending additional time getting these extrusions square and positioned correctly will prevent a lot of issues later on