Hi, I just want to know if I can use these pens are allowed to receive the official feedbacks, or I need to buy thicker ones?
As long as it's a 0.5 fineliner / felt-tip pen, you'll be fine. Some brands produce richer marks than others though.
Beware that Sakuras use a different measure system: when it says 05 on the pen it's a 0.45. This particular exception is admitted, however if you want a Sakura 0.5, you should look for the number 08.
When it comes to technical drawing, there's no one better than Scott Robertson. I regularly use this book as a reference when eyeballing my perspective just won't cut it anymore. Need to figure out exactly how to rotate an object in 3D space? How to project a shape in perspective? Look no further.
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