Printed or milled request - Sorted

[Clive S]

Can't you just insert a periodic pause into the program so the part has chance to cool down?

Yes you can and is often done so. You can get the print head to circle away from the part but then other issues come in to play ie. ooze from the head even though the filament is retracted between moves. Its all a bit of a balancing act. Clive