Underlining Ruler
thingiverse
When I'm studying I like to underline important parts in printed texts and handwritten notes. As I may want to erase my markings in the future I usually use a (mechanical) pencil. Underlining by hand will get messy, using a regular ruler will only allow straight lines. However I wanted different shapes to be able to tell my markings apart. So here's my solution. The ruler allows you to underline with a straight line, in triangular and round shape with 15 cm in length. Also you can make dashed and dashed-dotted lines. _____ Print and use at own risk.
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