Well been playing with the Router in work. Going to make small plastic (going to be Nylon) samples so I've been drawing them and cutting on the CNC router. Not getting the best finish on flat bottom pieces, looks like it's rubbing but ok on vertical sides. Using both single flute and 2 flute uncoated carbide cutters.

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The same is true in Aluminium, sides are OK but the base is a bit rough. Used WD40 and air on the Ali, just Air on the plastic.

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I've just downloaded the 30 day trial of HSM Advisor and as if by luck on the plastic I was using 14000 RPM and a feed of 1950mm/min which is not a million miles off what they are suggesting (1790mm/min) so clearly needs some playing with to get the best results....

Need to make dust/chip extraction as the stuff is being flung bloody everywhere......need to finish off the machine/control cabinet....need to make the vertical stand for it as kneeling down is a pain (literally) and leaning over the machine is also a pain......just need another 6 hours in the day to do this!!!!!