This is the wording from the "C" manual, just for your information.
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Plastic
Suitable carving plastics include polycarbonate (Lexan), cast acrylic (signmakers plastic), and Corian (acrylic base). Most other plastics such asNylon, ABS, and extruded acrylic (Plexiglas) tend to melt and gum upbecause the melting point of the material is lower than the temperaturegenerated at the bit tip when carving. The great thing about cast acrylicand Corian is that they come in many different colors and opacities.Note that the machine is always expecting soft material like wood as thecarving medium and will automatically set the speed and feed rates basedon this expectation. Therefore it is very important to keep any carving inplastic to less than 1/8” deep. Deeper carving will put excessive load onthe machine by trying to push a bit through this hard material and cancause damage.The only bit currently approved for plastic is the tapered carving bit. Thismeans that some functions will not be available when using hard plastic.Do NOT use any machine function that employs a bit other than thetapered carving bit when using plastics. For example do not usedecorative bits or the cutout function on plastics.Also remember to clean the machine very thoroughly when using plastics.
The “dust’ and chips produced can damage drive components and belts.