# Josef Průša on Reddit (u/josefprusa)

Part of Founders and CEOs on Reddit, researched with Autumn (https://www.autumn.ai) from public sources. Updated 2026-11-07. Interactive version: https://www.autumn.ai/resources/founders-on-reddit/josef-prusa

Josef Průša: Founder of Prusa Research.

- Reddit account: [u/josefprusa](https://www.reddit.com/user/josefprusa/) (Personal account)
- How we know it's theirs: ["Prusa Research" flair from r/prusa3d's moderators](https://www.reddit.com/r/prusa3d/comments/1jb77e5/)
- Where they post, in the records we retrieved: r/3Dprinting (18), r/prusa3d (10), r/OpenBambu (1)
- Known activity in the posts we found: 2015 to 2026
- Wikipedia: https://en.wikipedia.org/wiki/Josef_Pr%C5%AF%C5%A1a

## Moments

### u/josefprusa in r/prusa3d, Jan 5, 2024 · Funny

Replying to the post "Ok, I give... why Gummy Bears?".

> We started with chocolate which didn’t ship too well 😅 next were Hariboes which everyone instantly loved. The rest is history 🫶

Full thread: https://www.reddit.com/r/prusa3d/comments/18ze54b/ok_i_give_why_gummy_bears/kgh0jzk/ · 490 points as of Nov 7, 2026

### u/josefprusa in r/3Dprinting, May 29, 2016 · Owned it

Replying to a redditor:

> First print! Pre-loaded model at 50μm. Directly off the bed with no cleanup and no tuning except z offset!

> Well, I am really sorry but this is the lame version of the frog, which accidentally slipped into the Driver package and also to our SD duplicator. This is fixed in 1.7.1 drivers, so install them and copy a new one from sample objects onto your SD :-) Here is the new one compared to one from Form2! http://imgur.com/a/Urkvi

Full thread: https://www.reddit.com/r/3Dprinting/comments/4lhcnc/comment/d3o5up8/ · 4 points as of Nov 7, 2026

### u/josefprusa in r/prusa3d, Jul 12, 2019 · Funny

Replying to the post "Prusa big volume printer ?? Do you think it is comming?".

> No some lab memeber put mk3 into an cube frame. Sorry guys, we wouldn’t be having prototypes in the public lab ...

Full thread: https://www.reddit.com/r/prusa3d/comments/ccbryv/prusa_big_volume_printer_do_you_think_it_is/etlvog1/ · 228 points as of Nov 7, 2026