I have a HDD 4tb Toshiba drive I had in a Raid 1 NAS device (NSA320) that failed in the raid and I replaced it and rebuilt the raid and life was good....
I used to take failed drives while they were powered on and kinda snap them really with a fast twisting motion in an attempt to get the arm to move or get the platters spinning.
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.
Hi, I am planning to purchase a 2.5-inch HDD. If I connect it to my computer using a SATA to USB adapter instead of directly to the computer's SATA, can it somehow affect the result of this scan?...
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.
I'll get it shared tomorrow. It's designed after a bottle jack but is completely threaded to allow for adjustment and doesn't have any of the handle components, obviously.
And yes, I designed this in a vacuum, but it is actually a common machinists jack, it seems. Minus a few neat features I saw around the web (like a lock screw component) it's a 1:1 match for functionality.
Like you, I have a love for projects and tools that are shared across different fields. Mostly due to my ADHD, I have a slew of hobbies that focus around mechanical engineering, chemistry and biology. It's extremely cost effective to commingle different hobbies, actually. My 3D printing and CAD work is universal, my collection of chemistry glass is used for rando chemistry things as well as mycology. All of my fittings, connectors and electronic components are also universal... etc. etc.
In addition, I can't tell people enough that most "specialty' tools are most likely common tools from other fields, but maybe include a fancy adapter or something. And yes, I don't want to know how many times we have solved problems that were already solved. (A benefit is that we understand the true problem to its core and integrate those solutions much more efficiently into future projects.)
My "jack" is printed in PETG as it has a higher glass transition temperature (80°-85°C) than PLA. I have had PLA prints on my shelf start to sag due to age but most of that is likely negated by additives in new generations of PLA+. (or PLA Pro, or whatever buzzword is currently used.) PETG should be just fine for this. ABS would be another option, too.
I currently have a Prusa Mini that is my go to, but a large format Prusa XL with 5 separate hotends is squarely in my sights at the moment. (I have had several other printers that eventually got disassembled for parts.)
The threads on my print are super tight and no post processing was needed. It just screwed together after it was done. I did go to the trouble of designing a shoe looking adapter thing for more surface area against the card, but the weight of the card is enough to keep it from moving around. The thread angle is such that the downward pressure keeps enough friction on the threads so it's not going anywhere through any jostling. (Rough threads are a feature, in this case.)
But yeah, printers these days are much more accurate and less prone to errors. Just 10 years ago, every other print I did was a failure. Now? Failures are quite rare and that is mostly because of the tech. Now that layers are consistent enough these days, most threads I print are with 0.2mm layers which is good enough if I keep the tolerances wide enough in CAD. (My go-to is 0.25mm tolerance for fitted parts or less depending on the application.)
Yeah! I remember those wrenches quite well. Print-in-place models are somewhat mainstream now. I randomly put one on Printables and it is far more popular than I ever expected. The success rate seems quite high given the number of random printers that are out there: https://www.printables.com/model/489431-print-in-place-hinge . I only bring this up as it's a testament to how far the tech has come, and only recently.
I literally just got my first resin printer and have yet to have a failure. Getting consistent prints at 0.03mm has been a breeze and quality is limited by the model, not the printer. (Resin printer fanatics are likely to argue with me on that point.) Getting ABS plastic strength with hyper-detail is amazing! However, it's messy and smelly, so that sucks. (I am going to setup some real precision testing this evening as I have had some projects on hold for a couple of years due to FDM limitations.)
I have a stock of 99% IPA already that I use for cleaning the bed of my regular 3D printer, electronics cleaning and for drying things coming out of my ultrasonic cleaner. (I can use salt to drop any water out of IPA, actually.)
With resin 3D printing, my washer uses about a gallon of IPA and it will get super dirty after a while. For that particular case, it's just going to be more efficient to clean the IPA and reuse it until it needs to be distilled. (Wishing the parts in stages will help reduce IPA use, actually. Water washable resin is an option, but I would rather not dump that water down the drain or hassle with hazmat disposal, when applicable.)
Thanks for looking around! I already have a good selection of chemistry glass and am no stranger to doing home experiments. (I could probably use a good vacuum filter anyways and maybe I am just searching for an excuse to get one.) Distillation is an option for me, but it'll be last resort. Still, having a few proper distillation pieces would go nice with my collection....
Some filter rigs I have seen are using small RO systems, but that seems like a pain to clean and those people probably need to filter a ton of IPA for it to be cost effective. Regardless, it is absolutely worth exploring more as setting up a filter loop would be awesome until it gets gummed up.
This looked promising as it is dealing with ethanol and plant extracts: https://youtu.be/VjxZVpGv_aM?si=5VFLYQkObCzUawbb .. (This video specifically got me thinking about what could/couldn't be filtered and is the root of this post.)
And absolutely, a multi-stage rinsing system is going to be needed if I scale up, which may be in the near future. Full context: I am studying and planning for a reverse engineering/prototyping business, so there could be a considerable amount of printing in my future and this is particular problem is part of the cost analysis.
Most US Navy ships have had CIWS systems since the 70s and have had many upgrades to their tracking systems since then. The US Army adopted the LPWS (C-RAM) which is basically a portable CIWS for land use. (The Russian version of the CIWS is called a Kortik.)
It wouldn't surprise me if there are already CIWS-type systems for commercial ships operating in hazardous zones.
I have had the pleasure of standing next to a few CIWS systems during live fire testing and it's quite the experience.
Before I get into my comments, I just want to ask that if you haven't bought the dev a coffee, please buy him a coffee. Personally, I have bought several with the intent of covering for those who cannot. Our dev has earned it....
Being turned into a development manager doesn't sound like fun, TBH. Over the years, I have watched quite a few projects suffer because of developer drama and that would suck.
Sometimes, open source just isn't the answer and it's why I am trying to start a discussion around that. Maybe if a super senior android dev were to volunteer, that could be an option? I dunno.
Edit: Just copy the original filename, Chinese and all, to a custom RERF file. It tested fine with the factory tests and also custom test parts I made. I didn't test with only "R_E_R_F.px6s" as the filename as I proved the original filename works fine with custom models....
I just let it run without the resin vat and the RERF default print (with the characters) does actually trigger different exposures.
But yeah, the filename is super important as it triggers a test mode where the plate is exposed at 8 different spots at 8 different times per layer.
I'll need to create my own test file and test it with and without the characters. It's something I can test, but was hoping someone knew off the top of their head. (I was in the middle of my first ever resin print when I banged out this post, actually.)
Nah, this is not really a tech support community, but whatever. (Unless it is a tech support community? I always thought pcmasterrace was supposed to be a hair on the sarcastic side.)
It looks like a self-signed cert that is on your DSL modem (The subdomain was 'dsldevice'....) and I am guessing you are trying to use the web interface for your modem?
If you aren't making a connection to that device (which would have an IP address in 192.168.x.x, 10.x.x.x or 172.16.x.x) and you are trying to browse to an external site, then:
There is no internet connection and your device is injecting a local address for an external DNS query to give you a hint that you need to fix yo' shit or
Your device is super old and cannot handle HTTPS correctly. (Unlikely)
Your DSL device is hijacked and is doing an MTM attack on a HTTPS connection. (Highly unlikely, but you never know.)
Do regular web sites work correctly, or does this happen regardless of the site you are attempting to browse to?
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.)
I am business dumb, but I have a very unique mix of skills I would like to turn into a side hustle. Needless to say, there is going to be a huge learning curve for me....
If there is a major pitfall for me, it's the numbers bit. While proper accounting could resolve any tax issues before they happen, I'll play it safe and probably also put back +20% extra for taxes, at least for the first few years. Thanks for the info!
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.
General purpose printing will just be a filler, of sorts, and I can basically do that in my sleep. The only goal of that is to utilize equipment that would otherwise be idle.
The 3D scanning and reverse engineering is going to be the main focus but decent paying jobs will likely be sporadic for a while. The main function of the printers will be to prototype as to allow clients to test fit designs before they are finalized with proper materials.
When it comes to mold making, that is probably going to be part of what I do. However, that is its own science and takes a ton of experience to make viable commercial molds. (Simple molds are probably the only thing I could do at this point.)
*Lemmings. (I was going to use that as an answer to your post, but someone learning something new never gets me even the slightest bit miffed.)
--
Most scam products like "power saver" plug-in modules for your home, fake ODB2 gas saver modules for cars or those little stickers for cell phones that are sold as "antenna boosters". Also, anything that is marketed as a "detox" product will piss me off.
All of those products are actively being sold on Amazon, EBay and at some other major retailers or in malls. They are openly sold because people refuse to learn that magic does not exist.
Strange. I don't see this as a pinned post on that community, but yet, there it is. Did an admin pin a post from another instance on .ca somehow or is this a bug with Connect? (Strange things are happening like this since the last Lemmy update. I can't tell if it's a Connect issue, or a Lemmy issue.)
I made a comment about this on that specific post and others responded that they are seeing the same problem. (I should of asked for client details as well in hindsight.) So yeah, likely a Lemmy thing like you say.
I'll leave this post up as a note to the dev, just in case.
Currently, Prusa is doing a terrible job with the Printables competition, to the point where they could be in legal trouble if someone were to push for it....
I started to design one myself but realized it was a bad idea. For starters, and effective design wouldn't use much plastic: Bamboo or other kinds of material used for the tubes already stack together really well and it is much easier to stack them in a box glued together or use thin wire to bind them. Any additional design components translates to waste, IMHO.
And like you said, the plastic is bad to keep outside. If it wasn't for the moisture, direct sunlight would deform most common materials.
To be fair, some of their contests are not thought out very well and usually don't have enough constraints defined. (It's kinda pissed me off before too.)
I love in Colorado, which is a pretty dry state, so while I had heard of "wet filament", I never considered it to be a problem that I would have to worry about. I had seen people creating dry storage bins for their filament, but figured that must just be for people in humid climates....
Quick addendum: Cheap digital hygrometers from Amazon can be off by as much as 10% or more and are kinda pointless, poorly designed and a waste of batteries.
Simply using some color changing desiccant will save you a few bucks. (It's something I use here in Colorado for my jars of.. "entertainment products".. that is legal here, in addition to my filaments.)
There is desiccant available that is formulated to hold specific humidity levels but filament is better served by pure silica gel.
It's been around for a while. It's the fluff and the parlor tricks that need to die. AI has never been magic and it's still a long way off before it's actually intelligent.
They are joined at the hip, figuratively. Everything that one does, the other has to do. Eating, sleeping, playing.. everything. (Almost everything... They quickly learned that the litter box is one cat at a time only.)
It's almost like owning just one cat, just with double the poo.
Fenn still likes to suckle when he is going to sleep.. Mainly on his brother. After that, Sudo is usually drenched in slobber so both meanings work. :)
I am very much a DIY'er and doing my own HVAC repairs have never been out of the question. Actually, I have rebuilt a couple of systems, less the pressurized parts of the system....
I am fairly sure that I am being laid off with other Sr. Engineers tomorrow and need some ideas. Basically, I saw a calendar mistake by HR, so oops!...
HDD data recovery
I have a HDD 4tb Toshiba drive I had in a Raid 1 NAS device (NSA320) that failed in the raid and I replaced it and rebuilt the raid and life was good....
Can the SATA-to-USB adapter affect the result of the bad sectors scan? ( lemmy.world )
Hi, I am planning to purchase a 2.5-inch HDD. If I connect it to my computer using a SATA to USB adapter instead of directly to the computer's SATA, can it somehow affect the result of this scan?...
7900XTX (Playstation 2 for scale) ( lemmy.world )
Would celite/carbon vacuum filtration perform well enough to remove photopolymers from isopropyl alcohol?
I am simply on a quest to find an effective non-distillation method for purifying isopropyl alcohol used for rinsing resin 3D prints....
Russia Loses Last Black Sea Missile Ship ( www.kyivpost.com )
[Request] Fork an open source version of Connect (suggestions and discussion welcomed)
Before I get into my comments, I just want to ask that if you haven't bought the dev a coffee, please buy him a coffee. Personally, I have bought several with the intent of covering for those who cannot. Our dev has earned it....
[Resolved] Correct Anycubic R_E_R_F filename?
Edit: Just copy the original filename, Chinese and all, to a custom RERF file. It tested fine with the factory tests and also custom test parts I made. I didn't test with only "R_E_R_F.px6s" as the filename as I proved the original filename works fine with custom models....
Why do I get so many security alerts? Additional screenshot in comments ( lemmy.world )
Dell XPS 15 9530, Windows 11 Pro 10.0.22631, x64, 13th Intel Core i9... I could go on. Hopefully that's enough info....
Centipedes aren't bugs, they're arthropods ( beehaw.org )
Deadly methanol-laced bootleg liquor kills dozens in South India ( www.npr.org )
Explosion reported in Rostov, Russia. ( i.imgur.com )
https://t.me/in_factum/25869
Garlic bread is communion with the divine ( lemmy.world )
Google's AI Overviews now link to Wikipedia and LinkedIn more than Reddit, study finds ( www.businessinsider.com )
I would like to start a simple business related to 3D printing, reverse engineering and 3D scanning. What are common pitfalls of first time entrepreneurs?
I am business dumb, but I have a very unique mix of skills I would like to turn into a side hustle. Needless to say, there is going to be a huge learning curve for me....
Lemons(?) of Lemmy, what is something that feels so obvious to you that you just get lowkey pissed at the world for not knowing?
[Bug] Strange pinning issue? A pinned post from another instance in All on .ca
Strange. I don't see this as a pinned post on that community, but yet, there it is. Did an admin pin a post from another instance on .ca somehow or is this a bug with Connect? (Strange things are happening like this since the last Lemmy update. I can't tell if it's a Connect issue, or a Lemmy issue.)
Let's talk about Prusa Printables contests. It might need some fixing.
Currently, Prusa is doing a terrible job with the Printables competition, to the point where they could be in legal trouble if someone were to push for it....
Dry your filament!
I love in Colorado, which is a pretty dry state, so while I had heard of "wet filament", I never considered it to be a problem that I would have to worry about. I had seen people creating dry storage bins for their filament, but figured that must just be for people in humid climates....
AI trained on photos from kids’ entire childhood without their consent ( arstechnica.com )
Kremlin's top security officials call on Russians to mobilise to inflict 'maximum harm' on West in response to sanctions ( www.reuters.com )
- Kremlin hawk talks of need for harsh campaign against West...
[Bug] /c/new is listed under other communities. NSFW tiles blurred but not hidden. (lemmy.ca / 0.19.4)
That feed is not /c/cat on lemmy.world, it seems....
Inseparable brothers. We went to adopt one and came back with both. ( lemmy.ca )
Fenn and Sudo. (Yes. I am nerd and Sudo is "my" kitty.)
Russia Declares US As 'Enemy' State For First Time In Diplomatic History Amid Deteriorating Ties Over Ukraine ( www.india.com )
Checking and charging HVAC: Plausible DIY?
I am very much a DIY'er and doing my own HVAC repairs have never been out of the question. Actually, I have rebuilt a couple of systems, less the pressurized parts of the system....
If you knew in advance about being laid off, how would you YOLO the exit interview?
I am fairly sure that I am being laid off with other Sr. Engineers tomorrow and need some ideas. Basically, I saw a calendar mistake by HR, so oops!...
28 Russian soldiers who were wounded and refused to return to Ukraine were detained and tortured in Yakutsk. ( streamable.com )
https://t.me/pravdaGerashchenko_en/32547...