This can approximate a single line, by using the standard engrave toolpath, which will go around twice. If you only have 2-D Enroute, try inline offsetting with rounded corners by an amount just less than half the distance between the font lines. With a plain font like Simplex, the results should be just fine. The bit will even rise up into the corners, to make them sharp.
Use a 90 degree conic bit, and this will go down the center between the two "hollow" font lines, and only deep enough to touch both lines. If you have 3-D Enroute, look for the check box for "3-D engrave toolpaths" in the "Engrave Parameters" box. Sometimes they get messed up going from AutoCAD to importing the stuff into a cam program, so just have to make sure everything is converted to a vector format so it is more universal between applications/programs. I like getting scripted fonts there for vcarving and thicker fonts for relief/2d profiling. Some cam programs can understand it and make toolpaths for them with no problem, but some won't. Many won't work very well because the vector lines will end up overlapping. I get most of my fonts from, I believe they are almost all free. With single line fonts, I will be able to rout the letter to whatever depth I want and it will only get deeper as to cutter width, not letter width. This makes the letters too wide or it will rout them twice inside, leaving a ridge in the rout. So when I run them, I can only run the inside width of the letter, not depth that I want. I can do the same thing in Enroute with the fonts I have but it brings them in hollow, not single line fonts. Then I can use that exploded text to route. I don't know about KCDw, but I know that I can explode any font in AutoCAD using explode text command located in text menu in express tools. I use Enroute and KCDw on my router and need some fonts for certain projects.
I don't want to spend a lot of money for a big program when all I want is a few types of letters for my projects that I rout.
I am still looking for single line fonts and am having trouble finding one that will work for me.
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