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I found out drilling the plastic styrene on models at high speed melts to fast and stick to the tool I hand drill this plastic when slotting I use a slow speed to make sure it dose not clog or it just build up on very small tools as it comes out twice the size. other plastic like perspex etc I machine faster as you say getting rid of the chipping fast with big tools will stop this but with 1mm?david f wrote:An interesting observation, Willie.
The only advice I have seen on cutting plastic is to keep the cutting speed high so that heat gain is lost in the chippings.
Maybe this is the same thing - at low cutting speed the plastic just melts onto the tool?
David
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