Top all-time · #1894
Original Prusa 3D Printers
Company blog · blog.prusa3d.comhardwarebusiness
Original Prusa 3D Printers is the company blog at blog.prusa3d.com, writing about hardware and business. Since 2022, 40 different Hacker News readers have linked it 48 times, most often “The state of open-source in 3D printing in 2023”. It is still writing: the last post was on 2026-10-30, and you can follow it by feed.
Too few sampled comments (22) to say how often HN recommends it.?
Why HN links it
HN readers link Prusa's blog for printer build guides (enclosures, 3D-printed lenses), product announcements, and its 'state of open source in 3D printing' post, cited in debates about Prusa's licensing and Bambu Lab.
Summarised by Claude from a sample of 22 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Company Blog
Most-linked posts?
- The state of open-source in 3D printing in 202313 people · 13 mentions · first linked 2023-03-29
- Prusa's New Open Community License (OCL)3 people · 3 mentions · first linked 2025-12-19
- Dev Diary: What It Took to Bring Wi-Fi Support to Original Prusa MINI+2 people · 2 mentions · first linked 2022-09-03
- /mmu2s-printer-enclosure_30215/2 people · 2 mentions · first linked 2022-08-19
- Prusa Core One INDX – Toolchanger with 8 Nozzles2 people · 2 mentions · first linked 2026-04-24
- /original-prusa-printers-now-printing-at-20000-mm-s_82697/2 people · 2 mentions · first linked 2023-09-23
- /3d-printed-lens-and-other-transparent-objects_31231/2 people · 2 mentions · first linked 2022-08-25
- Prusa CORE One: Our new fully-enclosed CoreXY 3D printer2 people · 2 mentions · first linked 2024-11-19
What Hacker News says?
You're quite correct about the Lack. They're cheap as hell (15 bucks at time of writing?), but as a result quite manipulatable, such as creating 3d printer enclosures [0]. You can see some of their insides as they go through the process. [0] https://blog.prusa3d.com/mmu2s-printer-enclosure_30215/
Comment linking /mmu2s-printer-enclosure_30215/
on “Why are most sofas so bad?”Submitted Prusa CORE One: Our new fully-enclosed CoreXY 3D printer as a story · 75 points
HN discussionIt's cool that you support plotters. I don't have a plotter, but I DO have a 3D printer, and those can also do some pretty cool 2D visualizations. There's a good ecosystem for Lithophanes [0][1] and maps [2][3]. This would be a cool addition to that. [0] https://all3dp.com/2/how-to-3d-print-your-own-lithophane/ [1] https://www.youtube.com/channel/UCU13fzqAu4BTAhOSHJgHRqg [2] https://blog.prusa3d.com/how-to-print-map…
Comment linking /how-to-print-maps-terrains-and-landscapes-on-a-3d-printer_29117/
on “Show HN: Factorio Blueprint Visualizer”Submitted Prusa is now manufacturing 3D printers in USA as a story · 48 points
HN discussionIt works fine and lots of people do it, I have been using mine without issue for a few years now. It helps to put a concrete slab in it, but it's not necessary. The lack table does have a tendency to amplify the noise though. Here is a guide by Prusa to build one for their printers: https://blog.prusa3d.com/mmu2s-printer-enclosure_30215/
Comment linking /mmu2s-printer-enclosure_30215/
on “LackRack: IKEA's cheapest table is perfectly sized to rackmount computers (2020)”Submitted Prusa Core One as a story · 23 points
HN discussionPrusa did a whole article about 3D printing optics some time ago[0]. I've also had good luck coating transparent filaments with epoxy resin to get clear parts. [0] https://blog.prusa3d.com/3d-printed-lens-and-other-transpare...
Comment linking /3d-printed-lens-and-other-transparent-objects_31231/
on “3D print and build a 164mm f/2.5 lens for less than $15”Submitted PrusaSlicer 3.0 Preview – Built for the Future of 3D Printing as a story · 5 points
HN discussionThis is getting into first principles territory. The short version is that the gantry being on a cantilever and an open frame means it's going to act like a tuning fork under toolhead acceleration. Higher resonance limits toolhead acceleration before print quality nose dives. I haven't seen any accelerometer graphs posted for an XL, but it doesn't take much more than opening up PrusaSlicer and finding maximum accels…
Comment linking /original-prusa-printers-now-printing-at-20000-mm-s_82697/
on “Why Prusa is floundering, and how you can avoid their fate”Submitted Prusa's New Open Community License (OCL) as a story · 5 points
HN discussion> Armin's claim that Bambu is making companies reconsider open source, is not at all substantiated I cannot say what is or is not making companies reconsider, but Prusa is on the record about their struggles: https://blog.prusa3d.com/the-state-of-open-source-in-3d-prin...
Comment linking /the-state-of-open-source-in-3d-printing-in-2023_76659/
on “Why Prusa is floundering, and how you can avoid their fate”Submitted Prusa launches Core One L as a story · 4 points
HN discussionJo wrote an entire blogpost about it: https://blog.prusa3d.com/the-state-of-open-source-in-3d-prin... One of the big takeaways from this for me is that Jo doesn't really understand IP law. He talks about wanting a new license for open source hardware; the trouble with that is that a copyright license does not and cannot protect a hardware design. That's what patents do. That's not a defense of current IP law, just a…
Comment linking /the-state-of-open-source-in-3d-printing-in-2023_76659/
on “Why Prusa is floundering, and how you can avoid their fate”Submitted The Original Prusa MK4S Is Here as a story · 4 points
HN discussionThe author starts out discussing licenses and by the fourth paragraph has jumped to the standard "I've never used a prusa, but here's why they suck" talking points and then at the end of the article even points out that the license talk has nothing to do with their assertions. > Prusa responded to this certainty by not diversifying their business model whatsoever. There has only ever been one Prusa product: their la…
Comment linking /trilabs-industrial-3d-printers-one-year-later-moving-expansion-and-prusa-e-shop_72326/
on “Why Prusa is floundering, and how you can avoid their fate”Submitted The state of open-source in 3D printing in 2023 as a story · 3 points
HN discussionThis is from the prusa blog. RepRap started out originally as open source. https://blog.prusa3d.com/the-state-of-open-source-in-3d-prin... It's worth noting that in 2022, Prusa had 0 patents assigned to them. https://www.fabbaloo.com/news/which-3d-print-company-has-the...
Comment linking /the-state-of-open-source-in-3d-printing-in-2023_76659/
on “Is 3D printer company Bambu Lab trying to patent everything about 3D printing?”Submitted Prusament PETG Tungsten 75% for radiation shielding use as a story · 3 points
HN discussionPrusa has made a similar statement regarding their open source 3D printers. A lot of cheap knock offs leveraging their work … https://blog.prusa3d.com/the-state-of-open-source-in-3d-prin...
Comment linking /the-state-of-open-source-in-3d-printing-in-2023_76659/
on “Red Hat cutting back RHEL source availability”Submitted The state of open-source in 3D printing in 2023 as a story · 2 points
HN discussion> and the fact that it doesn't remove assembly as a manufacturing step Prusa is working on a Pick & Place Toolhead for the Prusa XL to enable at least some very specific assembly steps to be done on this 3D printer: > https://blog.prusa3d.com/xl-in-2026-new-toolheads-lower-pric... "One Print, Multiple Components: Pick & Place Tool Some technical prints require additional components, such as magnets, threaded inserts…
Comment linking /xl-in-2026-new-toolheads-lower-price_129707/
on “Will vibe coding end like the maker movement?”Submitted The state of open-source in 3D printing in 2023 as a story · 2 points
HN discussion>Well we don’t really know that an accelerometer is needed for input shaping for a nozzle that is only accelerating across a single plane. Input shaping requires an accelerometer for calibration. On a bedslinger like the Mk4, you need two sets of measurements - one for the toolhead and one for the bed, because both are moving and both can experience different resonances. The Prusa solution is to pre-calibrate input…
Comment linking /announcing-original-prusa-mk4_76585/
on “Another Reply to Josef PRůša”Submitted Everything You Always Wanted to Know About Resins and Safety SLA Printing as a story · 2 points
HN discussion>They're an excellent company, and the complete opposite of Bambu when it comes to Openness. not really -- but there ARE total open printers out there. voron and ratrig come to mind. prusa decided to change a lot of ethics once they became 'big'.[0] [0]: https://blog.prusa3d.com/the-state-of-open-source-in-3d-prin...
Comment linking /the-state-of-open-source-in-3d-printing-in-2023_76659/
on “Bambu Lab is abusing the open source social contract”Submitted Print with dozens of colors: Our new open-source ColorMix for PrusaSlicer as a story · 1 points
HN discussionPrusa is still the most 'open source-ish' choice, but they're no longer a polar opposite to Bambu, in 2023 they started making efforts to stop commercialization of their designs, stopped sharing source/design material for their PCBs, etc. Then in 2025 they changed their 'open community license' to say users may not: “Sell complete machines or remixes based on these files, unless you have a separate agreement…” and “…
Comment linking /core-one-cad-files-release-under-the-new-open-community-license-ocl_127290/
on “Bambu Lab is abusing the open source social contract”Submitted Prusa Core One INDX – Toolchanger with 8 Nozzles as a story · 1 points
HN discussionMore context: https://blog.prusa3d.com/core-one-cad-files-release-under-th... To me it's another L from Prusa, and I'm tired of people continuing to abuse the phrase "open" for things that are not.
Comment linking /core-one-cad-files-release-under-the-new-open-community-license-ocl_127290/
on “Open Community License”Submitted Prusament PC Space Grade – ESD safe material suitable for space applications as a story · 1 points
HN discussion
