Kurvengefahr
Browser-based CAM for pen plotters that turns text, shapes and imported vectors into G-code you can preview and plot over USB.
How the 5.4 was reached
- Quality of output4/10
Only a third-party tutorial warning about machine settings causing collisions and a Show HN mirror with one comment; little independent evidence of output quality. aiindigo.com
- Ease of use7/10
Browser-based with no install; homepage shows simple click-to-select and marquee editing, but no docs page was found. kurvengefahr.org
- Pricing value9/10
A directory page describes it as free and open-source, with no required paid dependency. aiindigo.com
- API and integration quality2/10
No API or integrations found on the homepage, pricing or docs pages checked, nor by search. kurvengefahr.org
- Solves the problem it claims to solve5/10
Homepage lists Generate G-code with a Preview control, but the only evidence is the vendor's own page and one tutorial. kurvengefahr.org
5.4/10 is the mean of the 5 criteria that apply. Scored on the five-criteria rubric v1, 13 October 2026. How scoring works
Pricing
- No pricing information found on the homepage excerpt provided
Key Features
- Handwriting and text generation for pen plotting
- Shape and generative art creation
- SVG, DXF and STL import
- Toolpath preview of the exact path before plotting
- G-code export or live plotting over USB
Pros & Cons
Pros
- Runs in the browser, so per the site there is no desktop install
- Preview shows the toolpath before any pen touches paper
- Accepts several input types, including SVG, DXF and STL
- Live USB plotting is offered alongside G-code export
Cons
- Pricing and licensing are not stated in the material reviewed
- Niche focus on pen plotters limits use for other machines
- Little public documentation was visible to judge machine compatibility
- No affiliate program is known
Kurvengefahr covers the pen-plotter workflow in one browser tool: create or import artwork, check the toolpath, then export G-code or plot over USB. It looks useful for plotter owners who want to skip desktop CAM software, though pricing, supported machines and project maturity could not be confirmed from the homepage excerpt.
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