Observed arrival · 2026-11-12
Copal: a browser-based resin slicer
Copal lets resin 3D-printer users prepare models and generate printer-specific print files in a browser.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Resin 3D-printing hobbyists using supported printers
- Worth noticing
- The listed printer support spans Anycubic, Elegoo, Creality, and Phrozen models, with output formats named for individual machines.
Field notes
The homepage names three input formats—STL, 3MF, and OBJ—and describes a sequence from mesh repair through support placement, hollowing, and slicing. Its printer list pairs specific models with output extensions, including .goo and .ctb for some Elegoo machines. The stated browser requirements are WebGL 2 and module Web Workers, so this is aimed at desktop browsers rather than a phone workflow.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue