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"PLA falls in the category of non-conduct filaments because it has a resistivity in the order of 1016 Ωm, similar to most other plastic types, making it a great electrical insulation material as long as it is in a solid state (cold). Once heated, PLA will soften and become more conductive and no longer safe to use as an insulation material."
I would think much depends on the thickness of the part, the distance between the conductors you are insulating each other from, and the amount of current that is flowing. The above snippet would seem to imply that if the conductors heat up (due to high current flow or simple ambient temperature) then the PLA can deform and allow the conductors to get closer to each other.
Any current passing through a plastic insulator can (in time) cause a carbon trace to develop. When that happens the resitivity drops dramatically as the carbon is conductive.
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Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more.
S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
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GregValiant 1,251
From HERE...
"PLA falls in the category of non-conduct filaments because it has a resistivity in the order of 1016 Ωm, similar to most other plastic types, making it a great electrical insulation material as long as it is in a solid state (cold). Once heated, PLA will soften and become more conductive and no longer safe to use as an insulation material."
I would think much depends on the thickness of the part, the distance between the conductors you are insulating each other from, and the amount of current that is flowing. The above snippet would seem to imply that if the conductors heat up (due to high current flow or simple ambient temperature) then the PLA can deform and allow the conductors to get closer to each other.
Any current passing through a plastic insulator can (in time) cause a carbon trace to develop. When that happens the resitivity drops dramatically as the carbon is conductive.
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