ffhein

  • 22 Posts
  • 633 Comments
Joined 3 years ago
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Cake day: June 14th, 2023

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  • ffheinto3DPrintingDo NOT buy Creality
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    1 day ago

    Creality made good printers in the beginning, i.e. original Ender and Ender Pro. They used high quality components and offered good value for money compared to what else what available at that time. However, when they had cornered a large part of the market and got known as the brand that made the best beginner printers, things started going downhill. They switched from Meanwell power supplies etc. to cheap noname components, quality control seemingly became non-existent, and they released several poorly designed overpriced printers (E.g. the E3v2 - my first printer - and everything with “max” in the name).

    I think there’s a combination of different reasons for why there always have been so many people who believe that Creality make good printers:

    1. People who have bought their Ender 3/Pro before 2020 actually have good printers, and give them honest praise on forums.
    2. Fake reviews on the internet, which hype up the product since their only goal is for you to click their amazon affiliate link and buy it.
    3. Creality paying content creators for positive reviews, including several well known and otherwise respected within the community.
    4. Buyers who got lucky with the QC and don’t own any other printers to compare with, might think their printers are the best.
    5. Buyers who are now happy with their Ender after having spent €100+ on “upgrades” and/or days of troubleshooting the printer. I’ve even seen a guy insist that an Ender is a better first printer than a cheaper more reliable alternative, because the 20 hours he spent on his Ender to get a decent print out of it gave him “an invaluable learning experience”.
    6. And I’ve also seen people who haven’t yet bought any printer claim that Enders are the best beginner printers, just because they’ve read that statement so many times they’ve come to accept it as a fact, and now they’re “helping” others looking for a first printer by answering their questions.

    I think my E3v2 is good now, but I’ve replaced the hotend, extruder and part cooling fans. I’ve added a second Z lead screw to fix gantry sag, and I found a manufacturing error where the X belt tensioner wasn’t straight because tightening the screw into the aluminium extrusion bent the plastic (difficult to find, but luckily easy to fix with a metal shim). I’ve replaced the firmware with Klipper, controlled by a Raspberry Pi. And I’ve probably spent at least 50 hours just trying to fix and improve the printer, which I didn’t mind btw, but I think most would prefer a printer which just works out of the box.

    In retrospect, I wish I had joined some 3d printing discords and talked to experienced users before deciding on which printer to buy, and not relied so much on google, websites and random comments.





  • I was basically wondering if position and acceleration were considered different degrees of freedom, but I had it a bit mixed up. I’ve seen cheap 6 DoF boards with accelerometers plus something else to measure rotation IIRC, but these don’t have absolute position and I was thinking if you add that maybe it would increase the degrees of freedom


  • ffheinto3DPrintingGreat success. Apple for scale
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    8 days ago

    I don’t know about you, but lighting greatly impacts how the surface quality of my prints look. Hard/direct light at a steep vertical angle makes the faces look pretty rough, but more diffuse light coming from the side makes the parts look great.

    It’s normal, but I think it’s more visible the thicker your layers are. I’ve also seen a respected 3d printing content creator use this effect to make his sponsored brand (Creality) look like it has higher print quality than the competitor… If you’re printing with ASA, perhaps you could use some light acetone smoothing if you want a more even surface?


  • If you enjoy building the Voron that’s definitely a better deal (and I think I would) but if you’re doing it to save money you have to factor in that time in the cost as well. I was briefly considering buying a Core One L after they become available with INDX, because it would be nice with a printer which includes everything and just works. But the VFA problems discouraged me, Prusa’s suggestions to overtension belts and modified slicer profiles which try to avoid certain speeds feels like a bandaid solution to what is fundamentally a hardware design flaw IMO.




  • Very important. I spend a lot of time at my computer and my desktop environment is like my home. I want it to look in a way that I find aesthetically pleasing and it mustn’t try to force me to change the way I work because some UX designer decided that their way was much better than everybody else’s. Perhaps you can guess where this is going :D but I’ve tried to like Gnome 3 since it was first announced. I’ve given it multiple chances but it just doesn’t work for me. It feels like they’re going down the same road as all “modern” UIs, where only the most basic features are visible and everything else is either dumped into the “advanced” category or removed entirely. On the other hand, I have a coworker who only uses his PC like a tool, and he thinks Gnome is the best DE ever and can’t understand why anyone would want something else.

    Currently I use KDE and I’m pretty happy with it. It’s highly configurable, and I’ve made it look and feel the way I want. I used mainly Xfce for a long time but now I prefer KDE.


  • It’s funny if you know that it is parody, but it’s so widespead in this day and ago so I tend to unconsciously filter it out. Tbh I probably wouldn’t have clicked the link if I hadn’t seen your comment, since I thought this was the original title of the video


  • I think you missed the part where it said “[…] cannot be overridden or otherwise defeated by a user with significant technical skill.” I.e. either the printer will only allow flashing with signed firmware containing the detection algorithms, or it would have to be done by a separate chip which isn’t affected by flashing firmwares.

    But also detecting firearms in gcode is a ridiculously complex task, and if companies actually try to comply they might opt for building the algorithms into their closed source slicer instead, and then only allowing their printer to print encrypted/signed gcode. Or they might do the analysis using some AI algorithm on their cloud servers, requiring an always on internet connection to print things. It might be tempting to think that nobody would buy a printer like that, but I think that enough people will do if they make it convenient and cheap enough.


  • ffheinto3DPrintingWashington wants your 3D printer to spy on you - here's the bill
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    22 days ago

    For a printer to be compliant, it mustn’t be possible to bypass the restrictions. So your printer might not even be legal if it allows you to flash custom firmware.

    identify and reject print requests for firearms or illegal firearm parts with a high degree of reliability and cannot be overridden or otherwise defeated by a user with significant technical skill.



  • ffheintoLinux@lemmy.mlWhy don't more distros use this method?
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    29 days ago

    I think a new Linux user shouldn’t have to choose a DE, so starting with a distro which makes this choice for them is most likely better. Unless the CachyOS installer does a good job at explaining what a desktop environment is, there’s a risk that a new user thinks they’re just selecting a skin for the OS and don’t understand how it will affect their desktop experience. If they for example choose an extreme light weight DE for their brand new gaming PC, their first impression of Linux might be that it looks dated.

    Having a DE chooser built into more distro installers could be a good thing for us more experienced users though.


  • Håller med, fast jag tycker ändå man kan få en skaplig bild av kvaliteten på något om det finns tillräckligt många betyg och recensioner inlagda. Just av den anledningen brukade jag recensera nästan allt jag köpte förut, men nu tar det emot lite att lägga energi på prisjakt när de själva arbetar på att göra sajten sämre… Men jag skulle inte bli jätteförvånad om de manipulerar sina samarbetspartners betyg.




  • Brukar de inte ofta fejka en människa som påstås ha skrivit artikeln?

    Själv brukar jag hålla utkik efter ett visst mönster som är rätt vanligt på lågkvalitativa artiklar. De brukar börja med rubriker i stil med “What is an X”, “Why you should buy an X”, “Things to look out for when buying X”, men alla tips är väldigt generiska och uppenbara. Sedan kommer av en lista med typ 10 olika där alla är bäst på något, typ “The best budget X”, “The best X for travel”, osv. Beskrivningen av varje produkt är en sammanfattning av tillverkarens egna reklamtexter, även om artikeln påstås vara en recension. Listorna med för- och nackdelar är triviala saker som man lika gärna skulle kunna gissa sig till, typ vem hade kunnat gissa att “The best X if money is no object” har nackdelen “A little bit expensive”… Och så förstås massor av affiliate länkar för att läsaren ska klicka vidare och köpa saken.

    Ironiskt nog så hittade jag inget bra exempel nu, när jag i månader har klagat på att google givit mig nästan enbart sånt skräp när jag försökt hitta seriösa recensioner.



  • Sorry, I’m not that much into politics :) I just linked the wikipedia article in case someone read the comment without having heard the term. Even among decently educated and intelligent people, I’ve noticed that there often is a tendency to guess what words mean based on what they look like. One of the most extreme examples of that was someone thinking that conservatives also were pro environmental conservatism, entirely based on the similarity of the words…

    On the larger scale, we’ve had massive privatizations everywhere. Pharmacies were sold (very cheap), hospitals and elderly care facilities are now owned and run by international investment firms, and we have for-profit schools. But everything is still paid for with tax money, so instead of trying to provide as good services as possible, all the private interests try to pocket as much as the money instead. Proponents of this system often say that the government run healthcare was inefficient, but having “too many” doctors and nurses at least created jobs here in Sweden.

    They’ve also made union memberships more expensive, resulting in many leaving them. So we have large international corporations violating Swedish laws that should protect the workers’ rights, and instead of upholding them government politicians side with the companies.

    Instead they’ve instituted government handouts for home renovations and having servants. There’s also a generic “job tax deduction” which gives you back a portion of your income tax. The right wing parties claimed it was going to “make it more profitable to work”, i.e. implying compared to being unemployed, but ofc. it also hurt students and retirees just as much. All the stores gradually increased their prices afterwards, so it doesn’t feel like I have much more money at the end of the month, and some economists called it “a solution to a problem which doesn’t exist.”

    But also the party named The Social Democrats started going towards neoliberalism in the late '90s, trying to appease corporations and starting to run public services as for-profit companies.