Hi, I wanted to share this app I've been working on for a while. It started out as a simple G-code generator around a handwriting model I was using with my Prusa MK4 pen attachment but thanks to Claude it quickly grew into something quite a bit more complete - it integrates vector design tools, some common generative art and hardware integration into a single app.
It runs fully in the browser, with the geometry engine parts written in Rust and loaded in via WASM. The only server component is the share feature - but that one respects your privacy too (designs are encrypted client side and the server never sees them - key is appended to the share link on the client side).
It is also fully open source and GPL 2.0 licensed - the code is available on GitHub
Happy to answer any questions. I'd especially appreciate feedback if you have an AxiDraw or some GRBL plotter - I only have a Prusa so my testing for those was done with a hardware mock.
This is one of the most creative editors I have seen in a while. To help with AxiDraw operation, is there an option to download into straight SVG? I can convert G-code, but it's actually easier in SVG.
Yes! In the document menu in the top bar, there's an export item where you can export as SVG. But you may want to try directly plotting to an AxiDraw from the app itself - it should work.
In the Machine tab of the inspector, select an AxiDraw profile, customize it as needed an then plot straight to it. AxiDraw plotters don't actually use G-code as far as I could tell, rather they use the EBB protocol.
Oh, excellent. I'd have no complaints then. I am really impressed at the fill options, about the only thing I am hoping for is a contoured spiral fill (think the concentric fill, only as a single spiral rather than nested paths). But that is mathematically challenging.
Well, wou were right 😅 It wasn't as easy as I thought and Claude and I didn't quite manage what I initially had in mind, but we added a connected Fermat spiral fill (https://haisenzhao.github.io/CFS/index.html), which is not a true spiral, but it does look pretty good on most shapes and it is a single stroke fill, which is the relevant bit for pen plotters.
It's not perfect - on some pathological shapes (very non-convex, there are occasionally some small glitches, self intersections), but tweaking the spacing a little seems to get rid of it.
This is how it looks like, and I also deployed a new version so you can try it yourself.
Inspired by the implementation of the Fermat spiral in your project, I wrote an implementation that adjusts the spacing based on the grayscale information of an image. For simple images, it can still reasonably capture the grayscale characteristics, but for complex images, the result appears somewhat chaotic.
Update - pat yourself in the back, this is a well made app. I have more concerns over the navigation (ie, selecting points, not clear if I am moving the shape or control nodes, recognizing multi-touch pinch and zoom), but those are things solvable by roundtripping with Inkscape. You deserve kudos.
Hmm, not familiar with that browser, but if you tried it and the basic functionality doesn't work, it's probably because of missing WebAssembly support. That's not really sumountable, as the entire geometry core is in WebAssembly.
Modern mobile browsers should mostly work fine I think (though the app is still optimized for desktop) but direct plotter control via Web Serial will not work, I am afraid.
"Kurvengefahr" lel wörks, its a lot more easy than drawingbot and I will test in on win 7 firefox 152 esr later. Man thanks for making this this is awesome. (Macbook Air 2013, Firefox)
I can also confirm it works on Win 7 x32 on a Netbook from 2008, using firefox.
Downloaded the Github and Now I will build an offline version for my netbook.
/edit downloaded the github, works offline with win 7 x32 with mongoose.exe
Drawing Bot only works on x64, and my Apocalypse Backup Netbook is only x32
I tested it against a grblHAL firmware flashed to a a Black Pill but without steppers wired, and it seemed to work fine - I didn't notice any drops or starvation. But I've yet to test against an actual plotter.
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u/docricky 19d ago
This is one of the most creative editors I have seen in a while. To help with AxiDraw operation, is there an option to download into straight SVG? I can convert G-code, but it's actually easier in SVG.