A common part of fabrication is labeling the parts to make assembling easier, but typical TrueType fonts generally aren’t ideal for fabrication.  After looking into them a little, we discovered that the problem was because fonts need to be closed profiles and not just paths.  There are some pseudo single line fonts that can help minimize this problem, though there are often artifacts that may come through as missing or extra lines when Rhino drops part of the closed profile.

As an alternative, we used a script component in Grasshopper to convert strings into fairly simple curves.  

For more info, check out our post here: http://lmnts.lmnarchitects.com/fabrication/single-line-font-for-fabrication/