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Editing Step 7 —

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Next step is to mark the holes on the box. For this version we are not using an optimal box, and you should prefer a box without existing holes.

Start by marking the bottom 8 holes for the gear assemblies.

Positioning should be driven by the axis lines. Try to center those axis lines within the box. Keep in mind that the 4 holes of each axis are creating a 60x31mm rectangle.

Drill the holes (a hand drill might be easier to use).

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