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Cake day: 2024年5月28日

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  • Good stuff. It looks like you put the lock washer on the M4 nut that holds the idler bearing on the arm correctly. Soooo many people fuck that simple thing up.

    The set screw doesn’t seem to be aligned with the flat on the motor shaft - I’d make sure that’s tightened up; but otherwise, everything looks fine…ish.

    Only thing I see missing is something called a “Rivnut”; it looks kind of like a little thimble looking thing – it’s supposed to go inside of the spring, and cover the M4 buttonhead and act as a tensioner - but in most cases, you don’t need to be adjusting that anyways, so what you have here is fine. Good job assembling it correctly.


  • That extrusion seems awfully fat for a 0.4mm nozzle. But also probably shows that your extruder is pushing mostly fine.

    If it’s a silk filament, however, they tend to die-swell much more than others.

    Stop “leveling the bed”. If you’ve leveled it once, it’s probably good enough - the problem is most definitely in your extruder or somewhere else.

    What extruder are you using (the thing that pushes the plastic?) You’ve shown your hot end, but not the business end of the thing that feeds the filament.




  • One of the few things I actually agree with him on. (Maybe not in the same WAY he means it though…) Stop using people’s skin color, their sexual orientation, etc as a metric for hiring.

    Honestly, I wish there were some anonymization metric for this kind of thing too - as just names can give away someone’s racial identity. Kinda wish hiring managers got anonymized names/pictures of people, so it was impossible to actually discriminate. The court system too - there was a skit someone did years ago about a white woman, being really distraught over being charged as an adult black man and I thought it hit the nail on the head.


  • Make sure you didn’t accidentally turn “E in mm^3” on in the settings (if it’s stock firmware) – no fucking clue why they allowed that setting to stay on that machine; as it was from a time when switching from the 3mm standard to 1.75mm standard.

    Also, never listen to anyone who tells you to start adjusting E-steps to fix a flow problem. They mean well, but they clearly don’t have enough experience to understand when or why you’d want to change that. E-Steps is a calculated value from the manufacturer based on known dimensions. If something is wrong hardware-wise, you fix THAT instead. E-Step adjustment was for the old days when you were making your own hobbed bolts by running a tap along the edge of a bolt and every bolt you made came out with a different effective diameter. Manufacturers know the exact diameter of their drive gears, and thus know the correct estep value and you don’t need to change it.

    sniped down the bowing tube and made sure it was flush with the nozzle.

    The fact that you said you snipped the bowden tube worries me; you’ve gotta cut it with a blade. Flush cutters do not leave it flat enough at the bottom and you’ve likely just caused yourself more issue. Either use a PTFE cutter designed for it, or a razor blade of some sort (Xacto knife, paint scraper blade, etc)

    https://www.youtube.com/watch?v=uKN0VOuul0o – This video is quite possibly one of the best videos on the subject matter. Take 14 minutes out of your life and read it and commit the knowledge to memory; especially if you own an older Ender 3.

    You can also disconnect your PTFE tubing from the extruder side of the equation, heat up your hot end, and try to extrude 100mm of filament, while trying to hold back the filament from the extruder – It should be pretty strong, if it slips too easily, you can narrow down your issue to the extruder. If it’s strong, but it’s tearing the filament apart when you try and print - then the issue will be down at the hot end. (Or possibly misconfigured slicer setting, like you’ve set your layer height to 3.0mm instead of 0.3mm for example) You want to divide and conquer here. Test the pieces separately, then fix the actual issue.

    Additionally, Touch probes don’t fix leveling issues. If the machine isn’t printing fine before you add a touch probe, they won’t magically make things work - all they do is automate the process for an already perfectly-functioning machine. They can also correct for non-linear malformations, but they are not there to fix a leveling issue if you have one.

    Check your nozzle diameter too – that looks similar enough to glow-in-the-dark filament that I’m going to mention it – DON’T. Glow in the dark filament is as abrasive as carbon fiber, and if your machine isn’t set up to handle it, it will wallow out a nozzle until it doesn’t match what the printer expects. If it’s wallowed out, you’ll regularly end up with nasty surfaces, etc.

    There are so many things that this could be. Change your E-steps back to 93 if you’ve changed it. You’ll only mask the problem. If you’ve swapped over to some sort of dual-gear extruder (bad idea btw) - make sure your E-steps match what they tell you to use (typically 130) - or you can get this too.

    More, good, well-lit pictures of the extruder area of your machine would help diagnosis - hot end with the fan shroud/cover off might help too. Basically – the more information you can give us, the easier it is for us to help. Pictures do a lot for those with good attention to detail; as you might miss something that we won’t.








  • kitnaht@lemmy.worldtoComic Strips@lemmy.worldNazis
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    2 天前

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