A little 3D printing tip

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I have one spool of blue PLA that prints well at 240° for the first layer and 210° afterwards, and one spool of white that becomes useless hot snot at 230°. Then I’ve got a few rolls of ABS which prefer totally different temperature ranges.

I’m always forgetting which settings to use with which plastics, so I’ve just taken to writing the optimal settings on the spool with silver Sharpie.

This cuts down on a lot of frustration.

What do you think?