# Prusa MK3

28 Hacker News commenters recommended Prusa MK3 and 9 criticized it, November 2025 to November 2026. It was recommended in 7 of 13 months; owners who said how long report a median of 6 years (3 owners). It meets the Hacker Approved badge rule.

**Verdict:** People recommend it for reliability, repairability and easy printing out of the box, and it can be upgraded as the line evolves. The common caveat is its price, which critics say is high for what it offers.

## Why people recommend it

- Very reliable, low maintenance (7 comments): "My Prusa Mk3.9s bedslinger is still going strong though" ([source](https://news.ycombinator.com/item?id=48255208)) "I have a Prusa MK3S and it has been very very reliable." ([source](https://news.ycombinator.com/item?id=48084690)) "has been no-fiddle for all seven years of its life" ([source](https://news.ycombinator.com/item?id=46494860))
- Repairable and upgradeable (6 comments): "That Prusa Mk3 you bought ages ago can be upgraded to the latest model, which means you have the option of turning that device into a lifetime machine" ([source](https://news.ycombinator.com/item?id=46887123)) "The Prusa's are workhorses, they break too but at far longer intervals, they're simple and infinitely more repairable" ([source](https://news.ycombinator.com/item?id=46499378)) "The 4 and Core One families never had to do it." ([source](https://news.ycombinator.com/item?id=48088058))
- Easy, no-fuss printing out of the box (3 comments): "MK3 -> MK4 was pretty meh" ([source](https://news.ycombinator.com/item?id=48090832)) "they both print without any fuss and can be operated without any deep technical understanding" ([source](https://news.ycombinator.com/item?id=48114249)) "a prusa i3 mkwhatever was entirely adequate for normal 3d printing out of the box" ([source](https://news.ycombinator.com/item?id=49457378))
- Open source and ethical maker (2 comments): "you are supporting development of open source firmware, open source slicers, and a company that is friendly to self repairs" ([source](https://news.ycombinator.com/item?id=48256314)) "Prusa quality, ethics, and true multi-material (not multi-color) in a compact package?" ([source](https://news.ycombinator.com/item?id=48099695))

## What people warn about

- Expensive for what it offers (6 comments): "The Prusa i3 mk4 is about 4 times as expensive as the roughly equivalent A1. Their stuff also seems to have less features and less polish." ([source](https://news.ycombinator.com/item?id=48255305)) "Prusa MK4S is 720 EUR, the arguably better Bambu Lab A1 is 260 EUR." ([source](https://news.ycombinator.com/item?id=46273316)) "I really hope they figure out how to cut down their prices" ([source](https://news.ycombinator.com/item?id=48259409))
- Needs manual Z calibration (3 comments): "it does it with a PINDA sensor, and you're still going to need to do a Z calibration plus maybe some fine tuning" ([source](https://news.ycombinator.com/item?id=47774956)) "European built and extremely repairable" ([source](https://news.ycombinator.com/item?id=48109682)) "I had spent hours calibrating, testing, and re-calibrating it" ([source](https://news.ycombinator.com/item?id=49459815))
- Fewer features than newer rivals (2 comments): "The Prusa i3 mk4 is about 4 times as expensive as the roughly equivalent A1. Their stuff also seems to have less features and less polish." ([source](https://news.ycombinator.com/item?id=48255305)) "unfortunately i3 MK3S+ didn't have it before Bambu hit the market" ([source](https://news.ycombinator.com/item?id=49464411))
- Looks and feels dated (2 comments): "The MK3S still looks like a kid's science project." ([source](https://news.ycombinator.com/item?id=48092796)) "versus the prusa mk3 i tolerated" ([source](https://news.ycombinator.com/item?id=48085037))

## Alternatives hackers recommend

- [Bambu Lab 3D printer](https://hackerapproved.com/p/bambu-lab-3d-printers.md): 124 recommend
- [Prusa 3D printer](https://hackerapproved.com/p/prusa-3d-printer.md): 68 recommend
- [Bambu Lab P1S](https://hackerapproved.com/p/bambu-lab-p1s.md): 29 recommend
- [Bambu Lab A1 Mini](https://hackerapproved.com/p/bambu-lab-a1-mini.md): 27 recommend
- [Bambu Lab A1](https://hackerapproved.com/p/bambu-lab-a1-3d-printer.md): 24 recommend

## Where to get it

- [See price on Amazon](https://www.amazon.com/s?k=Prusa+MK3S+3D+printer&tag=YOURTAG-20) (affiliate link)
- [Official site](https://www.prusa3d.com/)

## Cite as

Hacker Approved, "Prusa MK3", https://hackerapproved.com/p/prusa-mk3-3d-printer/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).