Hershey Fonts in SVG
by schmarty, published
mifga pointed me towards the Hershey fonts. They're a set of fonts for vector plotters named after creator Dr. A. V. Hershey who made them for the National Bureau of Standards.
These files are in a weird, weird, format. But after some normalizing, wailing, and gnashing of teeth, I was able to write some code to parse them and spit them back out as SVG! Now you can use these fonts in your Unicorn drawings.
Each SVG contains a layout of one of the Hershey fonts. The hershey_svg.zip file below contains all of the SVG files. The hershey.zip file contains the (cleaned up) original .jhf files. math-drawing.svg is just an example of using these glyphs, including scaling and stretching. I think the result is nice!
To use these in Unicorn plots, you'll want to grab my Unicorn G-Code extension for Inkscape.
 Hershey fonts - emergent.unpythonic.net/software/hershey
 Unicorn output for Inkscape - thingiverse.com/thing:5986
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I'm wanting to get into designing for 3D printers so I can make jewelry with math and physics equations to satisfy my nerd girl needs, and I am forever in your debt for this! Ahhhhh making the Maxwell's equations bangle of my dreams just got way less intimidating! I was thinking I was gonna have to try and build a math font of my own. Thank you, thank you, thank you!
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1. Download the SVG file containing the font of your choice, or grab the whole hershey_svg.zip to get them all.
2. In your Inkscape drawing, use File | Import to load the font you want
3. Drag around and duplicate the characters that you want to use.
4. Delete the ones that you don't.
5a. (Unicorn users) Save your file and Save a Copy to get your .gcode!
5b. (EggBot users) Plot directly from Inkscape. :)
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