F3RR3T

i find it helps when making your cut to go slow, because the plastic really sucks up the heat and can warp if your not on a flat surface

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Tale Gunner

According to all I have done with Plexiglass or Acrylic glass it has to be cut with very low speeds allowing time to cool after each cut.

mftha

I know this response does not answer the question, but I am very interested in the answer for both lexan (polycarbonate) which has very good mechanical strength but does not have good chemical resistance against organic solvents, and acrylic (plexiglass), which has good chemical resistance.

Do the O-flute router bits live up to their advertising as the best for cutting lexan and acrylics?

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Tom (NOT Template Tom; I'm nowhere near his league)
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mftha

I have been checking out various web sites for router bits for cutting polycarbonate and acrylic. The most informative seems to be Onsrud. They sell a variety of bits but they all recommend high speeds for cutting. As my budget allows, I will be exploring and reporting. Today I am going to try two O-flute bits from Amana on lexan from Lee Valley. The Delvie's Plastic web site does indeed have very good prices for acrylic sheets.

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Tom (NOT Template Tom; I'm nowhere near his league)
One does not know what they are doing until they can make a mistake and correct it.
DO Something, DO ANYTHING to Stop Global Warming