I'm a 15 Year Old Wannabe Engineer, This Is a Cycloidal Gearbox I Built
Details
- External ID
- 49140396
- Source
- HN
- Company
- —
- Product
- I'm a 15 Year Old Wannabe Engineer, This Is a Cycloidal Gearbox I Built
- Website domain
- github.com
- Launched
- Aug. 2, 2026
- Cohort
- —
- Upvotes
- 338
- Upvotes percentile
- 0.9919354838709677
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Enrichment
- Theme
- indie hacker passion projects
- Vertical
- Horizontal
- Function
- Hardware & robotics
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- cycloidal gearbox design
- Manually corrected
- False
Could you build this?
No Designing and fabricating a functional cycloidal gearbox requires mechanical engineering knowledge, cycloidal disc tooth profile math, tolerance analysis, and physical prototyping (3D printing/machining).
What it would actually take: Requires calculating epitrochoid / hypocycloid parametric curves with pin offset calculations, modeling the eccentric bearing and input/output pin carriers in mechanical CAD (Fusion 360, SolidWorks), and fabricating physical components. The hard parts are balancing eccentric forces, calculating backlash, and selecting appropriate bearings/tolerances for mechanical load transfer. Mechanical engineering and manufacturing skills are required.
Discussion
20 comments analyzed.
Concerns raised: Need more practical/physical application beyond theoretical design, Risk of losing craftsmanship and personal ownership when using AI tools, Formal engineering credentials/degrees still matter in some jurisdictions
Competitors
Other products that read as similar to this one — 59 launches clear the similarity bar, closest 8 shown.
Attention rank: #3 of 60 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 277 days after the earliest competitor.
- I made a vertical-pedalling bike with a novel drivetrain [video] · hn · 2026-05-07 · 26 upvotes · similarity 0.61
- I'm 15 and built a free tool for reading ancient texts. · hn · 2026-02-07 · 8 upvotes · similarity 0.49
- Built my 15-year-old game idea · hn · 2026-08-20 · 6 upvotes · similarity 0.45
- I'm a teen from Kenya and I built a package manager in Rust for fun · hn · 2026-03-01 · 6 upvotes · similarity 0.45
- I built a synth for my daughter · hn · 2025-11-12 · 1278 upvotes · similarity 0.41
- Draw a wheel. See the road it rolls on · hn · 2026-09-10 · 7 upvotes · similarity 0.41
- News on the Go · hn · 2026-05-01 · 5 upvotes · similarity 0.38
- I Built a Museum Exhibit · hn · 2026-05-02 · 39 upvotes · similarity 0.38
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a hardware & robotics tool for Fintech yet.