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Joined 11 months ago
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Cake day: August 15th, 2023

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  • It was on old 3.5" drives a long time ago, before anything fancy was ever built into the drives. It was in a seriously rough working environment anyway, so we saw a lot of failed drives. If strange experiments didn’t work to get the things working, mainly for lulz, the next option was to see if a sledge hammer would fix the problem. Funny thing… that never worked either.




  • Maybe? Bad cables are a thing, so it’s something to be aware of. USB latency, in rare cases, can cause problems but not so much in this application.

    I haven’t looked into the exact ways that bad sectors are detected, but it probably hasn’t changed too much over the years. Needless to say, info here is just approximate.

    However, marking a sector as bad generally happens at the firmware/controller level. I am guessing that a write is quickly followed by a verification, and if the controller sees an error, it will just remap that particular sector. If HDDs use any kind of parity checks per sector, a write test may not be needed.

    Tools like CHKDSK likely step through each sector manually and perform read tests, or just tells the controller to perform whatever test it does on each sector.

    OS level interference or bad cables are unlikely to cause the controller to mark a sector as bad, is my point. Now, if bad data gets written to disk because of a bad cable, the controller shouldn’t care. It just sees data and writes data. (That would be rare as well, but possible.)

    What you will see is latency. USB can be magnitudes slower than SATA. Buffers and wait states are causing this because of the speed differences. This latency isn’t going to cause physical problems though.

    My overall point is that there are several independent software and firmware layers that need to be completely broken for a SATA drive to erroneously mark a sector as bad due to a slow conversion cable. Sure, it could happen and that is why we have software that can attempt to repair bad sectors.


  • Tin the wire and the pin first and then touch the iron to them both quickly. They should stick fairly well without needing to add additional solder. Also, like someone else mentioned, flux can help quite a bit. (Maybe even a cupped soldering iron tip might be useful, depending on the situation.)

    Learning how to solder SMD components will get you extremely familiar with how solder behaves at that scale. Let’s just say it’s significantly different than just doing basic wires and THT.

    (Well, the solder doesn’t really act different, but at smaller scales it looks like it does.)



  • Absolutely! You just have to ditch those silly luxuries like food and shelter. You could even start working 80 hour weeks in hopes of getting passed over for that promotion again. Until then, you can just dream about how that extra $100 a month could possibly bring the total time down to 9,989 years.




  • For starters, I have a Prusa printer, Moose 3D scanner and a full license for Fusion 360, a small custom built CNC and a good selection of specialty tools.

    If needed, I can revert to photogrammetry for capturing high detail on small parts. (Probably within 15um/.5 thou? I need to test the limits of what I can actually do before I say for certain…)

    I can scale printing super fast and am lucky enough to have a Microcenter near me so I can buy more printers and filament in a hurry. (Now that I think about it, I’ll probably order a resin printer this evening. It’ll be useful for my own projects where I need to duplicate some injection molded parts.)

    For now, I am going to let the jobs determine the scale of my operation and how I invest in additional equipment. Thankfully, I am decent enough at the mechanical aspects of this stuff to handle issues fairly quick.

    But yeah, I already have a few thousand dollars in tools, assorted parts and filaments. It’s the odd tools I have that give me a good starting advantage, me thinks. (Nobody else I know has a full set of pin gauges, as an odd example. My electronic component and fastener selection is also fairly substantial.)

    Honestly, it’s time to get an ROI from all of my own, personal projects that I have made substantial investments in over the years.