• 18 Posts
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Joined 2 years ago
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Cake day: September 29th, 2023

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  • I see 3 options.

    1, adjust your z-offset. I’m not familiar with prusa’s firmware, but if your first layer is bulging, it could mean your z-offset needs adjusting.

    2, see if your first layer line thickness is set above 100%. By default some slicers lay an extra thick first layer; you might try decreasing this.

    3, get rid of the white on the first layer, and just make the second layer white. This is how I do multi-color lettering/ designs and it works incredibly well. I can show you pictures if my description doesn’t make sense.


  • It doesn’t really. It’s a T-intersection, where the top of the T has stop signs, and the bottom leg does not. If you are on one side of the T, you must enter the intersection, such that you are in the path of the bottom leg, before you can see if there is anyone coming from that direction.

    The people coming from the bottom leg (with no sign) have no reason to stop or slow down, and would generally not have reason to look in the direction the fence is blocking visibility. I don’t think traffic coming from that direction even recognizes the obstruction. All they see is someone suddenly creeping into the intersection in front of them, when they can be mere yards from them.


  • They’re building a school near where I live and they’ve got these things all around the site. Problem is, there’s an awkward intersection at one of the corners of the site, and traffic coming from the street that is 95% blocked by the fence does not have a stop/yield sign. So now everyone has to slowly approach the intersection, and slowly creep forward until you’re halfway in the intersection to see clearly, and hope a car isn’t barreling towards you at 30MPH.

    God, I used to bike around here.





  • Reading the article, it seems like the intent of this technology is much more geared toward manufacturing supply chains, rather than saying “this part came from John Doe’s Ender 3”. As many people have pointed out, consumer/ hobbyist grade 3D printers aren’t nearly consistent enough to produce anything resembling something as unique as a true “fingerprint”, and when you consider that most printers are modified in some way… There’s just zero possibility of it being used in that way.

    The only way I could see it being used in that way is trying to prove that this printer printed this part; if they have the printed part, and it hasn’t been post-processed at all (sanded, treated, etc), they could reprint the same part on the printer in question and see if it’s “fingerprint” is the same. But I’d be pretty surprised if this tech could even reliably say, “this part came from an Ender, this part came from a Neptune, and this one from came from a P1”.


  • I don’t think we’re really getting anywhere with this, but that’s kinda my point.

    Take a large pan and set it off-center on the smallest burner on your stove top. The entire pan will get warm, yes, but the part directly over the flame is going to get the hottest.

    The cpu is the flame, the pan is the phone. If you have to wrap the pan in some sort of protective coat, but want to effectively dissipate heat with the smallest hole possible, the smartest design would be to place the opening over the source of the heat, not the center of heat sink.

    If the cpu is in the top corner of the phone, the top corner of the phone is going to get significantly warmer than the rest of the phone (in terms of thermal dissipation). Putting a vent hole in the center where there’s less heat while having the warm part covered makes no sense.


  • More than just your cpu, gpu, and psu generate heat in a desktop, but they’re the only units that normally have giant heat sinks with dedicated fans for cooling them.

    If there was a hole in the center, but the main producer of heat was still covered, that’d be a pretty bad design for heat dissipation.