Other than when cutting through external parts (when a razor saw or sharp knife is the tool of choice) I rarely use anything but the dremel, and often with the flexible drive. The cutter of choice is a milling head about 10mm diameter with fairly coarse teeth, about 2.5mm pitch. At high speed this chips the plastic out, rather then tending to melt it, a particular problem with abrasive discs: one moment cutting, and the next producing volumes of plastic 'candy floss'. Some polymers cut best if left to chill for 30 minutes in the freezer, between attacks.
Methods for performing major surgery
I need to perform some major surgery on the internals of a Hornby tender so I can fit a large speaker. It's a long time since I have done something like this but my memories are of long and awkward struggles to get a scalpel into just the right place and slowly hacking parts away at great risk to the model and my fingers. There's got to be a better way, so I was wondering what methods people use. I am considering a Dremel fitted with a cutting disc, perhaps running from a flexible shaft.
David
David
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1 - 1 of 13 Posts
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