JustEnoughDucks
@JustEnoughDucks@feddit.nl
- Comment on Sodium-Ion batteries could lower grid energy storage costs by 80% For cities | Edenicity 3 days ago:
Oh, maybe I misheard the video. I’ll have to watch it again
- Comment on Sodium-Ion batteries could lower grid energy storage costs by 80% For cities | Edenicity 3 days ago:
What about the performance info is wrong, may I ask?
Sodium ion has far higher lab-tested cycle count than standard lithium ion/LiPo (3000-6000 cycles vs 300-500, max 1000 cycles) though in reality since sodium iron batteries are a chemistry that has been around for a few years instead of decades, real world is only 1000-3000 for the first generation while lithium iron phosphate still beats it with 3000-5000 cycles real-world, though that lithium chemistry is significantly more expensive, but indeed relevant to grid storage.
Sodium ion batteries also have a much broader temperature range (-40 to 80C vs -20 to 60C where lithium cells are often capped at 45C to prevent damage).
Charging times: sodium ion can charge between 2C and 3C while lithium ion is recommended to charge <1C. There are a ton of methods to get around that, but those would likely also apply to sodium ion
It falls apart a bit more on density, voltage range, and discharge speed.
Sodium ion can also handle 8C discharge rates, but not up to 10C like lithium, due to their higher internal resistance.
The voltage swing is way larger (4V->1.5V) which isn’t a huge “problem” per-se, but not convenient as all of the current BMS chips and inverters were made for the very low voltage swing of lithium, so you will need seperate ICs or only use 50% of the capacity.
And of course the 30% less density or so.
I don’t think any of those are deal breakers for grid storage or a lot of “general use” when it will be much cheaper as it gets adopted and scaled.
- Comment on Is This The Last PCB You’ll Ever Buy? 5 days ago:
Cool, what does that have to do anything? Are we just swapping facts about ourselves?
I am a professional electronics engineer with experience in high speed data signal integrity analysis, years of circuit and pcb design experience in medical devices, industrial, and consumer electronics, and designing and debugging for EMC.
- Comment on Is This The Last PCB You’ll Ever Buy? 5 days ago:
Vias are necessary for literally every part of electronics design beyond the basic I take a premade module and hook it up to these other 2 premade modules (which all have many vias on them), not just small packages.
Most PCBs nowadays are ≥4 layers. You need vias to use the center layers. Vias are necessary for ground return paths, stitching, shielding, RF plane coupling, signal integrity, and much much more. Single layer designing simply does not work if one is actually designing electronics and not just quick and dirty throwing 2 data busses together for a proof of concept.
BGAs don’t need vias, they are so small (0.5mm pitch and smaller) they usually need microvias (0.15mm/0.3mm ID/AR or smaller, which brings PCB prices from 15€ to 300€ for a set). Then the vias generally have to be filled at least and capped, optimally to not suck the solder through the vias from the balls. That is a whole other ballgame.
- Comment on 28-pound electric motor delivers 1000 horsepower 6 days ago:
It is funny because electric motors have nearly unlimited* torque depending on the kind. If you have thick enough power cables and winding conductors, you can just keep pushing it harder to get more torque.
It is like the thing they are very good at, besides sound levels, double or triple the efficiency, low/no maintenance, simpler with less parts, no emissions, etc…
Literally the only good thing about combustion engines are their fuel source energy density.
I think the problem is that motorheads see the enshittification of the auto industry as a whole and just say it’s because of electric motors because it happened right about the same time as EVs started coming out and try to push back on the wrong thing.
- Comment on Think Big, Print Bigger: Introducing the Prusa CORE One L! - Original Prusa 3D Printers 1 week ago:
What does you comment have to do with anything? He asked why delaware, I answered why delaware. Companies that are from europe still have to pay property taxes on american properties, worker-related taxes for their american workers, US health system taxes, income taxes for american declared income, etc…
Foreign companies must comply with local and state tax laws or risk facing tax compliance issues and be liable to penalties or even suspension of business operations.
- Comment on Think Big, Print Bigger: Introducing the Prusa CORE One L! - Original Prusa 3D Printers 1 week ago:
The ton of US companies are registered in Delaware because it is the state for tax evasion.
- Comment on How often do you update software on your servers? 1 week ago:
I wish I could use unattended-upgrade.
It literally restarts my server even when I disable the option, leaving it hung if the USB boot key isn’t in there.
I had to stop using it, so now I just manually upgrade because that doesn’t auto-restart without my permission…
- Comment on Man Alarmed to Discover His Smart Vacuum Was Broadcasting a Secret Map of His House 1 week ago:
But on this threat model? Why would it not be good?
It has to physically accessed on the PCB itself from what I gather.
There are 2 “threats” from what I see:
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someone at the distribution facility pops it open and has the know how to install malware on it (very very unlikely)
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someone breaks into your home unnoticed and has the time to carefully take apart your vacuum and upload pre-prepared malware instead of just sticking an IP camera somewhere. If this actually happens, the owner has much much bigger problems and the vacuum is the least of their worries.
The homeowner is the other person that can access it and it is a big feature in that case.
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- Comment on ADVICE: Running out of storage 2 weeks ago:
Hell, a 12TB WD red Plus in the EU is 300€. $160 for a 14TB is absolute dirt cheap
- Comment on The Great Software Quality Collapse: How We Normalized Catastrophe 4 weeks ago:
True, but this is a reaction to companies discarding their employees at the drop of a hat, and only for “increasing YoY profit”.
It is a defense mechanism that has now become cultural in a huge amount of countries.
- Comment on Open Printer is a fully open-source inkjet with DRM-free ink and no subscriptions 5 weeks ago:
That is not true even a little bit. Look at any inkjet paper under a microscope made after the mid 2000s.
- Comment on Everyone should have a home server (or a friend that has one) 5 weeks ago:
I would be interested to see a figure of people with home servers that have had that happen to them. DoS & pwned yes, especially 15+ years ago before there were good resources, TLS, reverse proxies, or authentication front ends.
It is extremely important to note that in those days, people just opened their, often out-of-date, servers completely to the internet via a DMZ or port forwarding, let ssh be open to the internet, didn’t harden ssh at all, and most people didn’t use a VPN for downloading.
That is literally like saying that people who light wall torches in their wooden home burned their house down, so let’s not use lightbulbs or electricity.
- Comment on v2.0.0: Stable Release of Immich (complete with Merch and DVD) 5 weeks ago:
What is the difference between a paid service and a paywalled service in this case?
- Comment on How can I optimize my jellyfin, specifically transcoding and the CPU usage involved? I'm running it off a mini pc so resources are everything 5 weeks ago:
So you have absolutely no devices that are a different resolution thans you download? You don’t direct play 4k on a 1080p screen for example.
- Comment on Immich mobile app sync V2 1 month ago:
Me too, and the new one I didn’t even realize this change happened. I saw there were no breaking changes, updated, and saw “oh, it isn’t synced anymore” so I reselected the folders, it ran a sync check on everything, which took a while, and everything works fine again.
I didn’t even realize there was a difference until now, but I guess there is a start/stop sync switch.
- Comment on How does streaming compare to "analog"? 1 month ago:
I have had accubattery for my phome’s duration and Sony have the feature that you can force stop charging at 80%. In the past 3.5 years with the phone, I have charged 1 814 046 mAh in that time. Assuming avg 3.8V (not hitting too much or CV with 80%) and my local price of 0.32€/kWh, that is only 2.14€ over 3.5 years.
Phones are absolutely crazy efficient.
- Comment on Important Notice of Security Incident 1 month ago:
I mean, jellyfin is absolutely even.more of a security nightmare than Plex, with multiple unfixed CVEs IIRC.
I use jellyfin also, but I only trust it not exposed to the internet at all. That is one very big area of improvement for them.
That and subtitle syncing.
- Comment on Is there no good inexpensive CAD software? 2 months ago:
I agree I have had some chamfer and fillets trouble that even wasn’t there before (a not-completely-tangent arc cutout from a square exposes this clearly) and will cause faces to shoot to “random” positions. Things can get wonky also because the Topological Naming Problem isn’t 100% gone, but a model getting messed up is not the same as crashing.
Still haven’t had a single crash in 1.0.2.
- Comment on Loops - short form video with ActivityPub - is now open source! 2 months ago:
And I still can only get 0 like, 0 comment shaky cam video of a screen capture of ultra zoomed in tiktoks or blasting shitty electronika music at 100dB clipping all to hell with 2005 era Microsoft visualizer videos.
Just like pixelfed, there is no way to discover anyone except the same 10-12 rotation of people they put in explore.
- Comment on I Made An ESP32 On-Call Beeper 2 months ago:
Cool project!
A ton of aesthetic effort for a simple Dev board + enclosure and a vibe coding project, especially since arduino already has libraries for MQTT, speakers, etc… Photo displays & animations galore lol.
Injection molding is much more of an art than simply CNCing a negative of your part and squirting some plastic in it. There is a reason that injection molding services often have around a 1000€ startup & molding fee.
Plus a custom PCB means FCC/CE certification generally.
- Comment on Intel details everything that could go wrong with US taking a 10% stake 2 months ago:
Defense contracting.
They do a a good amount of of military industrial contracting and work for 3 letter agencies on data processing/ high performance computing.
They also got awarded government funding in 2024 to build logic chips for the military in-country.
Not enough to sustain the company, but such “sensitive” programs may not be allowed to show up in revenue reports or have to be assigned to other areas or so.
- Comment on 2 months ago:
Had a 2023 VW ID4. They literally go out of their way to make your experience worse in many cases.
They have an app, they can read locked state, but can’t lock the car.
Their app/website makes you completely re-sign in and re-accept cookies every month or so that breaks any API usage mildly like HomeAssistant.
The key unlocks the door if you walk to it, 50% chance to re-lock the door when you walk away without interacting with it.
Can detect tire pressure, but they don’t tell you what it is, only if there is “pressure loss”
Backup cam was horrific quality, especially the field of view of a telephoto camera, especially compared to my 2015 Nissan altima
The entertainmrnt console was terible, extremely laggy, and Android auto was the worst experience. It would take between 2 and 15 minutes to connect to android auto with multiple different phones, and it would choose 1 app per phone to not display. My girlfriends’ was her maps app which is insane. Sometimes I would be at my destination before it would connect.
Also putting a trailer hitch on it would have been like 1500-2000€…
- Comment on How do I get started designing and making and/or acquiring my own pcb? 2 months ago:
Pi pico* (now also pi pico 2) it anyone is searching for it. Raspberry pi is the SBC line.
- Comment on How do I get started designing and making and/or acquiring my own pcb? 2 months ago:
For hobby work altium is quite ridiculous.
I design with Altium professionally every day. It is buggy spaghetti code that they got that way by shoving more and more productivity-centered features in there with little thought.
The libraries are a complete and utter shitshow also, which is why pretty much every company just makes their own.
It works (usually) and you can design fast with it, but for someone lightly using it for hobbies, it is a massive overkill and steep learning curve to not get any benefit over KiCAD in the end unless they want to start doing multichannel complex flex-rigid designs with mechanical linked integration.
Plus for someone wanting to just do a half hour or hour of designing in their free time, the 3-5 minute startup time would also get annoying.
- Comment on Router suggestions for a complete noob 2 months ago:
Or if your internet enters the house in a dead zone.
I have a brick house and our internet comes inside literally in one far corner with the most walls around it, so if the access point in there. Half of our house gets no internet.
I went for a cloud gateway ultra and then one access point centrally in the house where everything can reach.
- Comment on Another Google Pixel 6a catches fire after battery-nerfing update 3 months ago:
And then you indirectly pay google as you fund the people who buy google phones every time a new one comes out.
- Comment on This Tiny Radio Lets Me Send Texts Without Wi-Fi or Cell Service 3 months ago:
Nice, 0 within 25 kilometers of me lol.
- Comment on The Future is NOT Self-Hosted 3 months ago:
I think the issue is more that large tech firms can absolutely deal with external security in their applications. The amount of times gmail or Microsoft 365 has been hacked and leaked a bunch of client data is statistically zero when looking at their attack area.
Joe Dirt self hosting a mail server for his neighbors on a salvaged rack server is 1000x more likely to get hacked or lose a ton of his neighbors’ data than a big tech firm.
That is kind of the trade off for community hosting. There are very very few backup and security-literate people in communities.
- Comment on At this point who in the world could stop Trump over doing something totally illegal? Like lets say using bunker buster bombs to destroy DEM cities? Or is USA communially FUCKED? 3 months ago:
You mean like all of the air force brass, logistics commanders, pilots, all the way down to the MPs, who have been consistent in following illegal orders to fly black bagged and chained legal US residents that were refused due process to foreign concentration camps?