Ruler with circles and logarithmic scale
thingiverse
Three unique rulers tailored to various requirements! 1) A double-sided ruler measuring in centimeters; 2) an asymmetric model featuring a 90-degree angle; 3) a duplicate of (1), with a logarithmic scale. Each features circles of varying diameters. Initially created for personal use, this design has proved valuable to others as well. Consequently, I've decided to share it here. If specific customization is needed, feel free to suggest it in the comments – I may create an alternate version accordingly.
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