‹ AWithZ Academy
H2 course
The smallest handheld welder
Hands-on & reviews1 lessons
![[How-to] AWithZ small spot welder — the H2 handh](https://cdn.awithz.com/assets/_derived/wfull/community/works/d096/cover.webp?v=3293c17d.q82)
Builds & projects4 lessons
2
![[DIY] AWithZ H2 handheld color-screen spot welde](https://cdn.awithz.com/assets/_derived/w480/community/works/d083/cover.webp?v=f4d90930.q82)
【DIY】AWithZ H2 handheld spot welding machine, self-made 40M/YouTube · H2 · 1704 views
01:423Homemade Wind Speed Up To 40m/s, 100 Yuan Violent FanYouTube · H2 · 304 views
03:324[DIY] AWithZ H2 handheld color-screen spot weldeDouyin · H2
01:4150.8mm sensible pin spacing: welding that saves tDouyin · H2
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Builds & projects0 lessons
Know-how0 lessons
FAQH2
No weld after power-on, or welds turn black — what to do?
First make sure the pins are pressed firmly and the surface is clean; start low and step up — 0.1–0.15mm Ni-plated steel usually needs only a low-to-mid level. Look up settings by cell model × material in the WeldWorld parameter lookup.
How often do I change the pins, and how?
Pins are consumables — dress or replace them when welds enlarge, spark often or blacken noticeably; see the manual's pin-change section and the Academy videos for steps.
How do I store it long-term?
For lithium models, top up to 50–80% every three months; avoid heat and long-term storage at full charge.
Anything unclear in this course?
Tell us which step or which model is missing and we will add lessons.