Duck & Block resolution testers

Four testers for comparing the resolution of different settings on the Afinia H-Series, for use in the JMU 3-SPACE classroom (http://www.geekhaus.com/3space). The link below includes a step-by-step description of one way to add custom text to a model in Tinkercad.

Featured on Day 27 of MakerHome: http://makerhome.blogspot.com/2013/09/day-27-duck-block-resolution-testers.html

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