Launched this week
Lùmen
Native Mac app for GRBL laser engravers, no subscription
12 followers
Native Mac app for GRBL laser engravers, no subscription
12 followers
Lùmen is a native macOS app for hobbyist laser engravers. Connects to GRBL diode lasers from Sculpfun, Atomstack, Ortur, NEJE, and TwoTrees over USB. Image engraving with 7 dithering algorithms, SVG cutting, dual-layer projects, material presets, and a clean SwiftUI interface that feels at home on a Mac. The Mac-first alternative to LightBurn: €9.99 one-time, no subscription. Built by an indie dev who got tired of running Windows VMs to drive his Sculpfun.
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Hi Product Hunt! 👋
I'm Dimitri, an indie macOS dev. Lùmen started as a personal frustration — I bought a Sculpfun C1 Mini laser engraver last year, plugged it into my MacBook, and… nothing usable. The dominant software in this space, LightBurn, is cross-platform but feels foreign on macOS and recently switched to a $60/year subscription. The free alternative, LaserGRBL, is Windows-only.
Two options: run a Windows VM forever, or build the Mac-native app I wished existed. After several months of development, here's Lùmen.
What it does:
- Engrave images with 7 dithering algorithms (Floyd-Steinberg, Atkinson, Burkes, Jarvis, Sierra, Sierra Lite, Stucki) — each tuned for laser output on wood, leather, slate
- Cut SVG vector paths with multi-pass support
- Dual-layer projects: combine an engrave layer (raster) and a cut layer (vector) in one job
- Device presets for Sculpfun, Ortur, Atomstack, TwoTrees, NEJE — pick your model and start
- Material presets (wood, leather, acrylic, slate) with starting power/speed values
- Safety countdown, framing preview with low-power laser pointer, automatic resume from a stopped line
- Project files that save everything: layers, settings, positions
What it's not:
- No CO2/Ruida support — only GRBL diode lasers
- No camera alignment or rotary axis (yet)
- macOS only
Pricing: €9.99 one-time. No subscription, no recurring fees. 3-day free trial on the website.
🎁 Product Hunt launch discount: 50% off for the next 7 days with code `PRODUCTHUNT`. €4.99 instead of €9.99. Valid until May 19.
Tech stack: SwiftUI + AppKit (NSView for the canvas where performance matters), low-level POSIX serial I/O to talk to GRBL firmware. Happy to nerd out on the technical side — there are fun rabbit holes (GRBL's character-counting protocol, stall recovery, the image-to-GCode dithering pipeline).
Would love your feedback — especially if you own a diode laser and a Mac, or if you've shipped niche hardware-control apps. What features would you prioritize next?
Thanks for taking a look 🙏