Add alignment tool for Z-Drive Desk

[Kreyren]

CC @skirit

[Kreyren]

CC @vega-d, Can i use your printer for that (gib config~ :p) or can you print it (0.3mm layer height)?

z-drive-desk-Body001.3mf.txt

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EDIT: Handled

[Kreyren]

CC @vega-d: Adjusted shape, thanku <3

Should index on these holes, so that we can mark the cut "U" shape for drilling and locate the holes at the top:

I've added a spreadsheet to the changed file in case you need to adjust these dimensions:

Plz let @skirit know when it's fabricated.

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z-drive-desk-Chamfer.3mf.txt

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