I like making weird patches for my backpacks and since most of them are military wannabe tacticool, I decided I would make secretly nerdy ones that only those who know would know.
Add them as parts and color change at 1mm for the logo. Apply sticky velcro to the back and stick on your backpack. I recommend printing at 0.05 since there is so much detail.
The author marked this model as their own original creation.