This is a simple device for finding the center of a dowel or other round piece of material, and is my lo-fi version of a similar metal device I once used in a wood shop.
3D printed at 100% infill for durability, because the way this works requires it.

Place the face of the dowel against the raised diagonal fin, and tap the other end lightly with a hammer. This will score a line on the face. Rotate the dowel 90 degrees and repeat. This will result in a perfect cross in the center of the round material.

Download the file and print one for yourself on Thingiverse.

Copyright © Sayyad Glassford (2018). All rights reserved.
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