About hotend

hotend is an independent project to help you choose the right 3D printer without falling into inflated marketing or sponsored top-10 lists. Verified specs, side-by-side comparisons and a data-driven verdict — not commission-driven.

Who's behind it

I'm Marco López. I make tech and maker content on my YouTube channel, @marcojlv, and 3D printing is my latest obsession. Setting up and tinkering with my own printer — a Bambu Lab A1 — I got fed up with how hard it is to find reliable, comparable data across so many options. That's how hotend was born.

I'm not a lab that has tested 40 machines, and I won't pretend to be. hotend's value isn't my expert opinion: it's the data. What I know first-hand I cover on the channel; what I don't, I verify against sources and cite. Honesty first.

How we work

Each printer's specs are verified against the official manufacturer's spec sheet and cross-checked against independent reviewers (Tom's 3D, CNC Kitchen, Aniwaa, All3DP). When marketing and reviewers disagree, we note the nuance. We don't test every model in person: we synthesize verifiable sources and say so openly.

Why hotend

• Verifiable: every sheet cites its sources and, where we have it on record, the date its specs were last checked.
• Bilingual: Spanish and English from day one, with automatic browser-language detection.
• Structured for LLMs: pages marked up with Schema.org so ChatGPT, Perplexity and Claude cite them correctly when you use them as a search engine.
• Independent: affiliate links pay for this, and they don't move the verdicts. See the affiliate policy.

Methodology

The data lives in a relational database, not in the HTML: each printer is a row with its specs, its sources and the date they were checked. The sheet, the comparator and the material table all read from it, so a corrected figure is corrected everywhere at once.

The verdicts you see computed — which machine wins on each spec, which materials one can handle — are not opinion: they are deterministic rules over those numbers. "It won't print ABS" means its nozzle doesn't reach the 240 °C ABS needs, and the sheet shows you the figure. Where a number is missing, we say it's missing rather than filling the gap.

On freshness, plainly: there is no robot checking prices every day. The price we show is the manufacturer's MSRP, which barely moves, and the sheet says so, so you don't mistake it for a shop price. Specs are re-checked by hand against the official page when a model changes or someone reports an error, and some sheets carry a last check that is a few months old — where that's the case, the sheet says it. New models go in as soon as there are verifiable official specs.

Found something wrong? Tell us and we'll fix it, citing where the right figure comes from. It's the part of the project readers help with most.

Contact

Errors, suggestions or partnerships: [email protected].