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bunnie
Phew, just helped rework a Fomu. Had to rewire a ball under the CSP...which entails removing the CSP, applying UV soldermask to the pad, tacking fly-wire *next* to ball, then reflow a (new) CSP. Took two tries, but it seems to work now. Grain of rice for scale on left. 😅
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Karolis Stasaitis 28. ožu
Odgovor korisniku/ci @bunniestudios @xobs
How long did that take? It would seem that changing the pcb might be easier if you’re patching at that level.
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bunnie 28. ožu
Odgovor korisniku/ci @carlossless @xobs
I think I woke up a bit after noon today and we had it working by...3PM? and in between we went to lunch. Now that I know how to do it, if I had to reproduce it, maybe 15-30 minutes. It's feasible, just the yield is 50/50. Defs cheaper than spinning a new PCB for a couple units.
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Mr Robit 28. ožu
Odgovor korisniku/ci @bunniestudios @xobs
Where'd you get such big rice 😂 Seriously though, that's some pretty slick rework.
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bunnie 28. ožu
Odgovor korisniku/ci @therobotbuilder @xobs @freaklabs
The rice is from hackerfarm Japan. does know how to grow a healthy crop, but actually, these rice grains are shorter than the typical rice found in the US, it's similar in size to sushi rice.
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Aw vnx 28. ožu
Odgovor korisniku/ci @bunniestudios @xobs
what size are those caps?
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bunnie 29. ožu
Odgovor korisniku/ci @Awvnx @xobs
mostly 0201s...
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Antti Lukats 29. ožu
Odgovor korisniku/ci @bunniestudios @xobs
Care to reveal why patch was needed?
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bunnie 29. ožu
Odgovor korisniku/ci @AnttiBrain @xobs
VDD/GND swap on the I/O bank that drives USB and LEDs
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Joe Fitz 28. ožu
Odgovor korisniku/ci @bunniestudios @xobs
I like the precedent. I think grains of rice should be the default scale item in microscope photos from now on...
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🇦🇷 Francisco ~ 🤹🏽 ACROBOTIC 🤖 28. ožu
Odgovor korisniku/ci @securelyfitz @bunniestudios @xobs
A micro-scale banana, one could say. I henceforth declare 2019 as the year of “grain of rice for scale.”
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