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Joined 2 years ago
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Cake day: June 14th, 2023

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  • ffhein@lemmy.worldto3DPrinting@lemmy.worldFilament won't adhere?
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    20 days ago

    Filament not sticking to itself sounds pretty unusual… Found this review on youtube. The channel has 6 subscribers and I have no idea if it’s legit or disguised marketing, but all the comments mention similar problems as yours. There’s also this review, with more negative comments. One person says they managed to get good prints by raising the print temp even more, but don’t do that if you have a PTFE lined hotend. I.e. only try higher temps if you know for sure that you have an all metal hotend.


  • I’m not up to date on hardware, so I’ll refrain from recommending specific components. I went with AMD Ryzen CPU and Nvidia GPU (using closed source driver) last time I upgraded my PC and it usually works fine, though I know many recommend AMD GPUs nowadays for Linux. If €1000 is your total budget, it might be worth considering a second hand GPU. For example a used RTX 3080 goes for around €300 and they are still quite capable, though someone else will have to say if that’s enough for the flight sims.

    One thing you might want to look up is if the game uses hardware raytracing, and if that works on Linux. Out of the games I play, World of Warships looks worse for me than what I see on youtube, despite that I have set all graphics settings to max. Maybe it’s possible to fix by configuring Wine/Proton/DXVK etc. I haven’t really looked into it, but just so you’re aware of potential issues.

    I used this list for help when choosing a power supply, but I think that becomes more important if you buy a high end GPU.

    I use Steam for almost all my gaming, and it makes running (most) Windows games a breeze.


  • So far that has never happened because I’m not using that much storage :) But I shut it down when I need to turn off the mains electricity, and for powering it on afterwards the fake wall can be lifted off. It’s just the area underneath the desk so the panel might be smaller than it sounds like, and it hangs on some hooks so it’s fairly easy to remove if you know what you’re doing. Painted in the same colour as the wall, and with some some random junk on the floor in front, it blends in quite well though. I think the risk of burglary is fairly low, so it’s primarily to soothe my own paranoia.



  • ffhein@lemmy.worldto3DPrinting@lemmy.worldFilament blobs
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    26 days ago

    Maybe something is wrong with the script generating these test prints, if you don’t have any similar problems with normal prints?

    In addition to the blobs in the middle of the circles, I think it looks overextruded/blobby every time it changes direction. E.g. if you look at the -20 sample, it looks generally underextruded as one would expect. Though it’s also blobby around the edges, where the lines make a U-turn. Since the printer usually slows down at turns (unless your acceleration is set insanely high) this could be an indication that you’re exceeding your hotends melting capacity, i.e. either temp is too low or speed is too high, so it would be interesting to know what you calibrated those values to. I don’t think this is usually associated with random blobbing in the middle of the print, but could be worth checking just in case.



  • If you specify a budget then people might be able to give some recommendations, if you like.

    As for aesthetics, Fractal Design offer a few cases which look really nice, if you like the Scandinavian design style. The overview shows all cases with glass or mesh sides, but there’s usually an option to get an opaque door if you don’t want LEDs from the electronics shining through


  • My friends are currently throwing a tantrum because I won’t “just enable Secure Boot and run Windows” to play Battlefield 6 with them. But I’ve never felt that I must play a specific game, so the few ones who are incompatible (usually due to bad anti-cheats) have been easy to ignore. There are plenty of good games I can play on Linux.






  • Paper levelling is not an exact method, you might need to manually adjust the Z offset depending on how the first layer looks. It’s also something you generally don’t need to do if you have a probe like crtouch, as it will be used to ensure that the nozzle is at a consistent distance from the bed everywhere, and the Z offset will decide how big that distance should be. Just be careful when adjusting the Z offset so you don’t end up ramming the nozzle into the bed, make small adjustments. If you put a lamp behind the printer you can visually check if the nozzle touches the bed, e.g. if you manually move the nozzle to 0.2mm height after adjusting Z offset, can be good to do a manual check before starting a full print.

    Unfortunately your photos are too blurry to give feedback, but if you want to you could try this: Print only the first layer for something simple and stop the print. Get a couple of strong lamps and put them next to your printer. Move the camera as close to the print as it can focus, could be around 20cm for a phone camera. Steady the camera against something solid, for example a stack of books.

    If you want to keep trying to level on your own, perhaps this infographic could help. SuperSlicer has a built in calibration wizard which might also be useful.

    And some general questions which might help troubleshooting your issue:

    • What kind of glue did you use? AFAIK it should have high PVA content, otherwise it might not do much.
    • How fast are you printing? Both first layer and rest of print. Printing too fast can lead to warping.
    • What nozzle size? Larger nozzles requires can require even slower speeds to avoid exceeding the hotend’s melting capacity.
    • Have you modified flow rate multiplier (slicer setting) or e-steps (printer firmware setting)?

  • Products targeted towards businesses have always been unreasonably more expensive than those targeted towards consumers. It sucks for us AI hobbyists that Nvidia are stingy with VRAM on consumer cards, but I don’t find it surprising.

    Personally I only have a single RTX 3090, but I know a lot of people online who are stacking multiple consumer cards to run AI. Buying used 3090s and putting them in a mining rig is probably still the best value for money if you need a large amount of VRAM.

    How much VRAM do you actually need btw?




  • It’s not just you, there’s a financial incentive to write “reviews” which convince the reader to immediately buy the product, because of referral links. Even disregarding that the fact that it takes much more time and knowledge to write an actual unbiased review, you’ll most likely earn less money as you might dissuade readers from buying it, or even if you just make them think a bit more before going through with the purchase and they end up buying the printer somewhere else. I’ve started referring to these kind of pages as “fake reviews”, it plagues almost every product category and it has made it very unreliable to use the internet for buying advice.

    Though I suppose it’s even worse for 3d printing, as some manufacturers have been known to pay youtubers for positive reviews and to lie about their competitor’s printers. And even the ones who don’t get cash in the hand still have some incentive to bias their reviews, as pointing out a printer’s flaws or recommending to buy something else would make them less likely to receive more free products to review in the future.