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Stress where infill strands overlapped other infill strands (purple). This print was done at 200mm/s (nominal 16 mm^3/sec), note lots of under-extrusion.
I had trouble getting the t-glase and polycarbonate cap zones to pull out of the hot zone without damage, most of the test samples ended up looking like this where the high-shear semi-molten region got partially pulled off the unmelted solid core by the thermal barrier diameter step: (more t-glase)
Go watch a 3D movie at a RealD 3D theatre and pocket the glasses on your way home. They are pretty good quality circular polarizers. (I used to work for them.)
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Go watch a 3D movie at a RealD 3D theatre and pocket the glasses on your way home. They are pretty good quality circular polarizers. (I used to work for them.)
It's so that the extinction ratio is high even when you tilt your head. As my manager at the time used to say: it's so your wife can rest her head on your shoulder and still enjoy the show.There is a tradeoff to going CP -- it screws with the color a little bit, since the retardation angle is a function of the wavelength.Anyway, now you know where you can grab more CP's easily for science! :)
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What I should really do is set up a monochromatic light jig. That would let me take photos that would show stress bands with enough contrast for black and white publishing in my book. (I'm hesitant to commit to content that requires color dead-tree book publishing, since high page count color books are ~3x more expensive relative to black and white books.)
Unusual, but does happen... Glad the Tunell monitor is working as intended!
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Unusual, but does happen... Glad the Tunell monitor is working as intended!
On Jan 13, 2016 5:38 PM, "Ryan Carlyle" <temp...@gmail.com> wrote:
--Ran into some >2mm bulges in my Esun PLA filament. They would've wrecked two 12 hour prints if it weren't for my filament monitor.
Bulge 1:
Bulge 2 had some zany contamination:
Bulge 3 was baaaaarely big enough to get stuck:
This is pretty unusual for Esun.
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