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jonbruner

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CT scans of 1k lithium-ion batteries show quality risks in inexpensive cells

lumafield.com
287 points·by jonbruner·10 เดือนที่ผ่านมา·124 comments

How a car cigarette lighter works, in CT scans

lumafield.com
30 points·by jonbruner·2 ปีที่แล้ว·29 comments

CT scan shows there's still lots of toner left in an “empty” cartridge

lumafield.com
358 points·by jonbruner·4 ปีที่แล้ว·270 comments

AirPods Pro (2nd Gen) teardown: the lanyard eyelet is more than it appears

lumafield.com
14 points·by jonbruner·4 ปีที่แล้ว·1 comments

comments

jonbruner
·10 เดือนที่ผ่านมา·discuss
Scan time depends on material composition in the object you're scanning and your requirements for resolution. You can scan a dense steel object overnight to capture micron-level detail, or you can scan a plastic object in a few seconds to search for a known issue like a crack.

Battery scans are very fast; the scans in the report took less than a second. Total cycle time on a Triton CT scanner is under 5 seconds when you account for part handling.
jonbruner
·3 ปีที่แล้ว·discuss
Ha! I'm with Lumafield--we've actually done the same thing, scanning bags of Doritos, Cheetos, and Ruffles: https://www.lumafield.com/article/bite-into-doritos-ruffles-...

To answer the question about whether these are cleaned up, these scans aren't processed beyond what our software does automatically during the reconstruction. Industrial CT scanners are designed to scan a wider range of material densities than medical scanners. We use some copper filtration to scan parts with lots of dense materials, but no extra processing is required once we've reconstructed the model.
jonbruner
·4 ปีที่แล้ว·discuss
Also, the difference between a full cartridge and an empty cartridge is minimal; about 20% of the toner reservoir is filled in a new cartridge, dropping to 15% when the printer says the cartridge is empty.