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What's causing this pattern on my first layer?
  • I tried printing a disk with the bed at 70c and it looks better. Going to try with it even higher. This sheet has a +0.350 z offset compared to my normal PEI sheet, so that might contribute to low heat conduction.

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    What's causing this pattern on my first layer?
  • My bl-touch mount broke so I've been doing manual bed leveling for a while. I just finished printing a 185x185mm part (half of a dactyl keyboard) and the first layer looked great from the top.

    Edit: I also deleted the old bed mesh from my klipper config when the bl-touch broke

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    What's causing this pattern on my first layer?
  • Layer adhesion is great.

    No, this pattern isn't coming from the bed. The bed actually has a polygon pattern that I'm trying to get the plastic to pick up. Sellers on Amazon/ebay/Ali are calling it PEO, but it's really just PEI with a fine texture that diffracts light. The pattern from the bed comes through really well on the perimeter of anything I print, but not the center.

    I forgot to mention, but I also played with the extrusion multiplier (both directions) and it didn't make a difference. I've also gone through the klipper docs and TeachingTech's calibration guide, the printer is fairly well calibrated at this point.

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    Small reminder: Don't forget to periodically renew your nozzle from time to time!
  • If you need to replace a cheap nozzle after each medium-sized print with abrasive filament, then I'm thinking print quality will suffer towards the end of a larger print (like >250g, but definitely >1kg). Not having to replace nozzles mid-print makes the $70 nozzle seem like a better deal. Depending on what you print and how much you print, of course.

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  • I'm printing with PLA on a "PEO" print bed (really a textured PEI), on my heavily modified ender 3, and there's a pattern on the bottom of my first layer that I'm trying to get rid of. The top of the first layer looks fine, and changing the z offset in either direction doesn't help. I've also tried slowing down the print speed because I thought the extruder might be skipping, but I'm still seeing it at 10mm/s. Any idea what could be causing it, and how to get rid of it?

    Pic: https://sh.itjust.works/pictrs/image/31cd6cef-16de-47b3-995f-197f7d0b432d.jpeg

    Edit: the first layer went down from the bottom left to the top right, but the pattern I'm seeing is perpendicular to the extruder path

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    Joe Rogan makes presidential endorsement
  • He has a large platform, and his audience is probably more likely to support Trump than Harris. So, him endorsing RFK is taking votes from Trump and helping Harris win the election.

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    "We've won, but at what cost?"
  • Of course they would, Firefox is a huge project. But that doesn't mean Mozilla is the only organization that can manage it.

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    "We've won, but at what cost?"
  • I know, I was just being hyperbolic. Not sure why my OC is so downvoted, I'm pretty sure people don't think Mozilla is the only org capable of leading the project.

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    "We've won, but at what cost?"
  • If you disagree, why not share your opinion instead of just downvoting? Why do you think Mozilla is the only organization capable of supporting Firefox?

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    "We've won, but at what cost?"
  • A project as big as Mozilla wouldn't be abandoned. If Mozilla stopped development I guarantee more than one group would fork.

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    Innovation cannot be stopped
  • Again, I'm just guessing wildly, but anything which scares people away from smoking is good in my opinion.

    That's where I disagree, spreading misinformation as scientific fact causes people to lose trust in health authorities, and it fuels things like the anti-vax movement and flat earthers. The ends don't justify the means.

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  • Are mixed breeds welcome? Staffy/Boston terrier/etc

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