• 18 Posts
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Joined 2 years ago
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Cake day: August 4th, 2023

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  • I did logarithms “by wrote” without an intuitive understanding of them until the day I realized that the logarithm base 10 is the number of digits a number is in base 10 (minus one).

    • log1010=1
    • log10100=2
    • log101,000=3
    • log1010,000=4

    (But whereas “number of digits minus one” is the same for, say, 1,000 as it is for 9,999, logarithm is “smoothed”. So the logarithm of a number between 1,000 and 10,000 will be some number between 3 and 4.)

    Similarly, logarithm base 2 is the number of digits in base 2 minus one. Logarithm base 16 is the number of digits in base 16 minus one. Etc.

    Natural logarithm (log base Euler’s constant) is a little trickier to think in terms of, but technically it is the number of digits in base e minus one. Numerical bases that have fractional parts are a sensical concept.




  • Measuring the mesh cold is a waste ot time.

    You say that, but it’s a hell of a lot better than nothing. I remember the days of not having no Z-probe on my other printer and not being able to use more than (generously) a 3"x3" square of my 8"x8" bed without really bad bed adhesion issues and no amount of manual leveling would help. Even on the aforementioned Ender 3 V2 Neo, I almost never have bed adhesion issues. My estimation of my experience is that leveling a cold bed is about 97.5% as helpful as leveling the bed hot.