On 2/25/14 4:36 AM, jhowson4@xxxxxxxxxxx wrote:
We just printed a 1/4" thick box to protect a transmitter at work, With a 1.5" sphere electrode, it failed at42 kv on a face, and 37Kv on a corner. And once it failed it was pretty much worthless
I wouldn't expect most 3D printed stuff, particularly the sintered powder or additive extruded plastic forms, to have very good HV insulating capability: all those little voids create field concentrations. It would be like expecting styrofoam to have a high dielectric strength.
The stereolithography produced by writing a UV laser into a tank of liquid polymer might be better.
But, in general, machining from a solid block is going to be better from a HV insulating standpoint.
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