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Review a list:

Nut Lock - is saying that the amount is 1 plus the total double time of the unitary (I believe it needs two units). Also, in the files I downloaded has Nut_Lock13mm and Nut_Lock11mm, should I print one of each or is it just for printing based on the size I will use? (This is not clear to anyone else)

Pineaple Coupler: same old question, it has the size 5/16 and 8mm ...

Besides, congratulations for the work, I only needed to print these two pieces that I was in doubt.