This is a blog where I run 3D printers into the ground and write down whatever comes out of it — reviews, tuning notes, and a well-documented trail of failures.
So, Who’s Writing This?
Yuto Horiuchi, living in Kanagawa, Japan. I go by Psych0h3ad (pronounced “psycho-head”), and on X you’ll find me as @YuTR0N. On weekdays I’m a product manager at a multinational manufacturer, so the printers mostly get to run at night and on weekends.
It all started in 2020 when I bought an Ender-3 Pro and went to war with bed leveling. Before the year was over I was already swapping fans and mainboards, and somewhere along the way I fell down the rabbit hole of printers like the VORON — the kind you assemble entirely from a pile of loose parts. These days I get to try out machines before they launch and lend an ear to manufacturers both in Japan and overseas. Most of that back-and-forth with overseas makers happens directly in English. My Chinese is still very much a work in progress.
The half-finished experiments and nerdier tangents that never quite make it into a blog post get dumped straight onto X, so feel free to follow me there. As for YouTube — I’ve been telling myself I’ll get serious about it for five years and counting.
*Everything on this site is my personal opinion and does not represent the views of any organization I belong to.
Community Stuff
I run Japan RepRap Festival (JRRF), a festival for 3D printing folks. In 2026 it reached over 150 booths and roughly 5,000 visitors — a scale that honestly still surprises me. In 2024 I also hosted big summer and winter 3D printer giveaway campaigns that drew several thousand entries in total. Both are community projects, separate from this blog and from my paid work.
The Fleet
Everything listed here is a machine I’ve used personally. As of July 2026 I own 39 printers, off-the-shelf and self-built combined (more than 60 in total if you count the ones that have moved on). Some I bought, some were given to me — it’s all mixed together. Models with a review are linked, so head there for the finer details, including whether a unit was provided by the manufacturer.
| Model | Qty |
|---|---|
| Bambu Lab P1S Combo | 3 |
| Bambu Lab X1 Carbon Combo | 1 |
| Bambu Lab A1 mini AMS lite Combo | 2 |
| Bambu Lab H2C Combo | 1 |
| Bambu Lab H2S Combo | 1 |
| Bambu Lab X2D Combo | 1 |
| Bambu Lab P2S Combo | 1 |
| QIDI MAX4 | 1 |
| QIDI Q2 Combo | 1 |
| QIDI Plus 5 | 1 |
| Creality Ender-3 V3 | 1 |
| Creality Ender-5 Max | 1 |
| Creality Hi Combo | 1 |
| Flashforge Creator 5 Pro | 1 |
| Anycubic Kobra S1 Max | 1 |
| ELEGOO Mars 5 Ultra | 1 |
| SOVOL SV08 | 1 |
| Snapmaker U1 | 3 |
| Prusa MK4S | 1 |
| Mellow M1 | 2 |
| Ideaformer IR3 V2 | 1 |
| Peopoly Magneto | 2 |
| WonderMaker ZR | 1 |
| Positron | 1 |
| VORON 2.4 R2 (300mm / 350mm) | 2 |
| VORON Trident AWD (300mm / 350mm) | 2 |
| VzBot 235 | 1 |
| Crossant 235 | 1 |
| Doron Velta (FYSETC kit) | 1 |
| Micron (LDO kit) | 1 |
Beyond those, past residents of the workshop include VORON (0.1 / 0.2), Bambu Lab (A1 Combo), Creality (K1 Max / K1C / Ender-5 S1 / Ender-5 Plus / Ender-3 S1 / Ender-3 V3 Plus / Ender-3 V2 Neo / Ender-3 Pro ×2 (one of them being my very first printer from 2020) / Halot Mage Pro), ELEGOO (Centauri Carbon / Neptune 4 / Neptune 4 Plus / the original Mars from 2020), QIDI (Plus 4 / Q1 Pro), Flashforge (Adventurer 5M Pro / AD5X), Mingda (Magician Pro), JGMaker Artist-D, Kingroon KP3S, Voxelab Aquila X2, Zonestar Z9M3, and Tronxy (X5SA / D01 / XY-3 SE). Most of them didn’t so much retire as get evicted — I simply ran out of space — and they’ve moved on to new owners, students among them, through handoffs and sales. If I had the room, I’d happily line them all up like a museum.
The VORONs were built from Siboor and Blurolls kits. Total print hours across the fleet? Honestly, I’ve lost count. There are always a few machines waiting on repairs and a few kits still sitting in their boxes. I’ll add the peripheral gear — 3D scanners, laser cutters and the like — at some point.
How I Do Reviews
No grand editorial policy here, but if a unit was provided by a manufacturer, the article says so. Beyond that, the basics are simple: I actually use a machine before writing about it, and I don’t hide the parts that went wrong. Anything covered by an NDA only gets published once I have permission. When firmware or slicer updates make an older article outdated I fix it as soon as I notice — but if something slips through, a heads-up via the contact form or X is much appreciated.
Ads & Affiliate Links
This site contains affiliate links. Buying through them doesn’t change the price you pay, and the proceeds promptly disappear into the next round of test machines and materials. Free units and sponsorships don’t change my verdicts, and when they’re involved, the article says so.
Contact & Work Inquiries
For review requests, 3D-printing consulting, or event and speaking inquiries, head over to the contact page. I can work in Japanese, English, and Chinese.
To manufacturers and makers outside Japan: feel free to reach out in English — that’s how I already work with most of my overseas partners.