Radius gauge
thingiverse
A straightforward radius ruler, featuring measurements from 10mm to 3mm in increments of 0.5mm, allows precise evaluation of both convex and concave shapes using opposite ends. A holding hole is also incorporated for ease of use. Considering the addition of a measuring hole for rods/screws on smaller sizes, note that plastic shrinkage may affect precision in certain applications; however, this could be advantageous when measuring forms for 3D printed parts. To begin, print either the entire build plate (build_plate.stl) or individual desired components.
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