I used electric tape for the router power cord and a metal angle to keep the drag chain away from the screws. I also used heavy duty double sided tape to secure the chain end near the control box.
I tried to square my XL for about a week taking it apart and reassembling it, the only thing that i was able to do to fix it was to add .020 of shims to the ends of the Gantry rail on each end. i found this from the tutorial that Julien had taken time to provide. i think it is called Introduction to Shapeoko CNC A-Z. this shows where to place the shim materials and i no longer have any gap in either the front or the rear on the Y axis. the tutorial is worth a good look.
That does 2 things - (1) gets rid of the gap & (2) can cause the machine to create ellipses instead of circles since X and Y are not perpendicular. Better to shim the X extrusion after the frame is squares. Truly better is to cut the extrusions square; how much more could it really cost build a fixture to make accurate cuts.
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