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Ink and Algorithms: Techniques, tools and the craft of pen plotting

https://penplotter.art/
88•selvan•5d ago

Comments

alterom•1d ago
Awesome!

I've rigged my 3D printer to use as a 2D plotter, and had a ton of fun programming it to draw fractals like the Dragon Curve [1].

I also made a tool to do cursive handwriting/calligraphy with it, to make fancy postcards and whatnot [2].

Guess this would fit right on that blog :D

[1] https://www.instagram.com/p/BlJ8dgmAaTA/?utm_source=ig_web_c...

[2] https://www.youtube.com/watch?v=V45cj0-GQyQ

gus_massa•1d ago
Do you have a blog post with more technical details and closeups? It may be good to post here.
gyomu•1d ago
Very nice resource, pen plotters are so fun. One of my favorite subreddits is /r/plotterart - feels like one of the last few hobby-related subreddits I can go to that retained the feeling of early days subreddits, just people showing cool stuff they've made.
JKCalhoun•1d ago
More of this please.

The plotter shown reminded me of the lowly harmonograph [1]. As old or older than Scientific American.

[1] https://en.wikipedia.org/wiki/Harmonograph

Branch Privilege Injection: Exploiting branch predictor race conditions

https://comsec.ethz.ch/research/microarch/branch-privilege-injection/
175•alberto-m•1h ago•55 comments

PDF to Text, a challenging problem

https://www.marginalia.nu/log/a_119_pdf/
108•ingve•3h ago•65 comments

Multiple security issues in GNU Screen

https://www.openwall.com/lists/oss-security/2025/05/12/1
269•st_goliath•6h ago•154 comments

Show HN: Helixdb – Open-source vector-graph database for AI applications (Rust)

https://github.com/HelixDB/helix-db/
15•GeorgeCurtis•55m ago•3 comments

It Awaits Your Experiments

https://www.rifters.com/crawl/?p=11511
49•pavel_lishin•2h ago•14 comments

Launch HN: Miyagi (YC W25) turns YouTube videos into online, interactive courses

93•bestwillcui•5h ago•68 comments

Ask HN: How are you acquiring your first hundred users?

352•amanchanda•9h ago•227 comments

Membrane, Media Framework for Elixir

https://membrane.stream/
53•lawik•3d ago•9 comments

A Taxonomy of Bugs

https://ruby0x1.github.io/machinery_blog_archive/post/a-taxonomy-of-bugs/index.html
18•lissine•2h ago•4 comments

I learned Snobol and then wrote a toy Forth

https://ratfactor.com/snobol/
89•ingve•2d ago•22 comments

Google’s unfinished DeX-like desktop mode for Android

https://tech.yahoo.com/phones/articles/first-look-google-unfinished-dex-181424457.html
46•logic_node•3h ago•58 comments

The world could run on older hardware if software optimization was a priority

https://twitter.com/ID_AA_Carmack/status/1922100771392520710
443•turrini•7h ago•390 comments

PyPI Organizations

https://blog.pypi.org/posts/2023-04-23-introducing-pypi-organizations/
8•calpaterson•44m ago•1 comments

In a high-stress work environment, prioritize relationships

https://wqtz.bearblog.dev/high-stress-job-relationships/
208•wqtz•5h ago•133 comments

Insurers launch cover for losses caused by AI chatbot errors

https://www.ft.com/content/1d35759f-f2a9-46c4-904b-4a78ccc027df
45•jmacd•2d ago•19 comments

A programming language made for me

https://zylinski.se/posts/a-programming-language-for-me/
124•gingerBill•9h ago•127 comments

FastVLM: Efficient vision encoding for vision language models

https://github.com/apple/ml-fastvlm
335•nhod•17h ago•68 comments

Why are coffee stains darker at the edges?

https://www.why.is/svar.php?id=5513
104•michalpleban•1d ago•37 comments

Mill as a Direct Style Build Tool

https://mill-build.org/blog/12-direct-style-build-tool.html
4•lihaoyi•3d ago•1 comments

Mozilla Firefox – Official GitHub repo

https://github.com/mozilla-firefox/firefox
723•thefilmore•12h ago•392 comments

GOP sneaks decade-long AI regulation ban into spending bill

https://arstechnica.com/ai/2025/05/gop-sneaks-decade-long-ai-regulation-ban-into-spending-bill/
81•Jtsummers•1h ago•66 comments

Show HN: Basecoat – shadcn/UI components, no React required

56•hunvreus•6h ago•27 comments

The great displacement is already well underway?

https://shawnfromportland.substack.com/p/the-great-displacement-is-already
143•JSLegendDev•1d ago•50 comments

Anti-Personnel Computing (2023)

https://erratique.ch/writings/anti-personnel-computing
100•transpute•10h ago•44 comments

Show HN: A5

https://github.com/felixpalmer/a5
63•pheelicks•8h ago•18 comments

Detecting if an expression is constant in C

https://nrk.neocities.org/articles/c-constexpr-macro#detecting-if-an-expression-is-constant-in-c
16•signa11•4d ago•11 comments

Open Hardware Ethernet Switch project, part 1

https://serd.es/2025/05/08/Switch-project-pt1.html
250•luu•4d ago•30 comments

Chrome's New Embedding Model: Smaller, Faster, Same Quality

https://dejan.ai/blog/chromes-new-embedding-model/
11•kaycebasques•3h ago•1 comments

Trial by Fire: The crash of Aeroflot flight 1492

https://admiralcloudberg.medium.com/trial-by-fire-the-crash-of-aeroflot-flight-1492-ee61cebcf6ec
67•shmeeed•11h ago•27 comments

TheForger's Win32 API Tutorial

https://winprog.org/tutorial/
7•xeonmc•4h ago•0 comments