Changes to Step #12

Edit by Dave Ogles —

Edit approved by Grégoire Saunier

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After
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Step Lines

[title] XY base squaring
[* 9] Take your time with this step.
-[* 3] Take one the smallest extrusions on the pile of unused. It is 290mm long. It will be used for reference.
-[* 7] Place the assembly at the end of a table.
-[* 5] Carefully insert the 290mm extrusion in between as shown in the 2nd image.
- [* 9] Be gentle or you might mark permanently the assembled extrusions.
-[* 2] Apply pressure in the directions shown and tighten the 2x M5x10 screws strongly.
-[* 1] Remove carefully the 290mm extrusion carefully and reserve it for later.
+[* 3] Take the smallest extrusions of those remaining. It is 290mm long. It will be used as a reference, to ensure that parts are correctly spaced.
+[* 7] Place the assembly at the end of a table, as shown, so that the two 331mm extrusions lie flat on the surface.
+[* 5] Carefully place the 290mm extrusion between the other extrusions, as shown in the 2nd image.
+ [* 9] Be careful that you do not scratch or permanently mark the extrusions whilst doing this.
+[* 2] Apply pressure in the directions shown and fully tighten the 2x M5x10 screws.
+[* 1] Carefully remove the 290mm extrusion and reserve it for later.