March 4, 2023
Description
A compact gauge to determine inner and outer radii/diameter, ranging from 1 to 20 mm. It also works well as a coaster.
There are multiple variants awaiting you:
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Except for the versions with bigger numbers, the digits and lines are designed with a stroke width of 0.41 mm. Recommended for printing them is a 0.4 mm nozzle and 0.2 mm layer height. Printing with a 0.6mm nozzle and Arachne activated in PrusaSlicer is possible, as can be seen in the pictures above.
A multi color version is just a matter of simple filament changes between layers. The digits on top differ in height by 0.2 mm which lets you print them in two colors. → The here orange depicted digits read the adjacent bulge diameter and are 0.2mm higher than the white ones, which read the adjacent inside curvature.
In case the digits won't print neatly after said filament change: A draft shield, wipe tower or any object to consume filament beforehand (establishing good flow by doing so) may help.
Material at one's discretion, I used PETG in four different colors.
There may be improvements and modifications based on feedback given here. The current font used is OCR-B. The quest for the best printable fonts is not over, just further elaborated here.
If you do prefer a radius/diameter measuring tool that is even smaller and can be carried on a keyring, consider printing my radii worm or diameter chain. Measuring instead of gauging angles can be done with my printable vernier bevel protractor. And efficient identification of metric nuts & bolts can be done with my cylindrical screw measuring tool.
Credits to Archimedes of Syracuse, who absolutely died for circles and Carl Friedrich Gauß.
License:
Creative Commons — Attribution — Noncommercial — Share Alike
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