Printing an accurate 12" ruler

[Purplie]

… have you tried a different ruler template?

Metric and Imperial Ruler (30 CM/300 MM/12" Inch ruler)

[ruler] A ruler in both standard metric units and also those strange historical murica units that only make sense to people with 12 fingers. I cut mine from clear PG 3mm acrylic but you do you [ruler-makerhacks] https://www.thingiverse.com/thing:3665704