How To Fold Curved Lines in Metal Without Fancy Tools
A maker demonstrates a technique for folding curved lines in aluminum sheet metal using only hand tools and patience. The method involves drilling a series of small holes along the desired fold lines to weaken the metal and act as a score. This approach allows for complex aerodynamic shapes to be fabricated without specialized machinery, though it leaves minor perforations on the finished part.
- ▪John fabricated a curved aluminum cover for a Belly Tank Lakester using hand tools.
- ▪The technique requires drilling small holes along each fold line to create a weakened section.
- ▪Cutting shallow grooves was rejected because it caused the aluminum to crack during bending.
- ▪The finished part contains small perforations along the folds, which are largely invisible when mounted on the vehicle.
- ▪The process involves significant planning and finishing work to achieve clean curves.
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| Original publisher | Hackaday |
| Canonical URL | https://hackaday.com/2026/09/11/how-to-fold-curved-lines-in-metal-without-fancy-tools/ |
| Publication time | Sat, 12 Sep 2026 02:00:49 +0000 |
| Retrieval time | 2026-09-12T02:02:54.270Z |
| Last seen | 2026-09-12T02:02:54.270Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | XdK-CQdsT5hl · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
How To Fold Curved Lines In Metal Without Fancy Tools No comments by: Donald Papp September 11, 2026 Title: Copy Short Link: Copy Folding a sheet of metal in a straight line is one thing, but how does one fold multiple curved lines into a sheet of aluminum without fancy machines? [John] demonstrates how to do exactly that with little more than hand tools and a fair bit of patience. The secret is drilling a lot of small holes along each fold line. Complex shapes are possible with planning, hand tools, and patience. First, a bit of background. [John] wanted to fabricate a curved piece of aluminum as cover that would match the sleek aerodynamic lines of a Belly Tank Lakester. The trick is that there isn’t a single straight line to be found, and the fold lines are all curves.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Hackaday.
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