For machining purposes I find it is best to assume such connectors are glass filled and use an abrasive rather than sharp cutting blade.
As always, feed slow and let the blade do its work rather than forcing it.
Peter
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On 9/1/2024 9:33 AM, Roy Thistle via groups.io wrote:
On Sat, Aug 31, 2024 at 08:41 PM, Peter Gottlieb wrote:
Some connector material is glass fiber filled
You can sometimes see the glass fibers, if they are there, after cutting or scratching the 'plastic'.
I can't see them anymore without a good pocked lens, or magnifying glass.
They just look like whitish, or translucent, fibers, or 'hairs' sticking out from the surface of the 'plastic' (really its a composite material, not just a polymer.)
You might not see it, if the 'plastic' was melted, and 'healed' during cutting.
Another way to do it is to scratch the 'plastic' with a needle, or an awl.
Then you should be able the 'see' the glass fibers.
Sometimes, scratching it, will reveal a 'crunchiness' or 'crunchy' sound.. or scratch is harder to make, than in non-fiber filled 'plastics.'
Sorry if that is vague; but, one you know what is sounds like, or feels like, you will know if it has glass fibers in it.
For example, glass fiber-filled nylons are composites like Nylon 6 or Nylon 66... filled... with glass fibers ranging from 10% to 60% by weight. These nylon composites are significantly more rigid, stronger and more resistant to heat, compared to non-filled nylon.
