For my use case, M3x12 was too long for the bottom 3 screws and ended damaging my printed parts.
I was able to get away with M3x8.
I used a lighter to heat the hex nut a bit to make the process easier. Tried with other mechanical tools but felt high risk of breaking the printed parts.
Fan orientation:
Convex: intake side
Concave: exhaust side
So we are trying to cooling the hotend, thus convex side towards the hotend, concave side towards the cover
If you don’t have a zip tie in handy, you could use a scissor to cut half of the sealing strip from the plastic bags for holding the screws.
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For my use case, M3x12 was too long for the bottom 3 screws and ended damaging my printed parts.
I was able to get away with M3x8.
I used a lighter to heat the hex nut a bit to make the process easier. Tried with other mechanical tools but felt high risk of breaking the printed parts.
Fan orientation:
Convex: intake side
Concave: exhaust side
So we are trying to cooling the hotend, thus convex side towards the hotend, concave side towards the cover
If you don’t have a zip tie in handy, you could use a scissor to cut half of the sealing strip from the plastic bags for holding the screws.