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Step 3 Carefully align the T-Slots with the mounting holes in the Rail
Support and secure with four M4 x 16 Screws. Make sure the
Fastening Strip is mounted on the inside of the X Frame Front.
Before tightening, make sure the Fastening Strips are mounted
so that the X Frame supports are slightly proud. This will allow
the T-Slot Boards to fastened flush against each of the top edge
of the frame supports.