Image: reddit.com · Video still: Used Claude to make this Curta simulator in the browser
A Curta calculator simulator built from photos
Claude Opus 5.5 built a browser Curta simulator in THREE.js from photos of two real Curta calculators and the online manuals.
Credits
Earliest dated source:
The full story
The maker photographed their Curta calculators (Type I and Type II) and asked Claude Opus 5.5 to create a Curta simulator as an HTML file using THREE.js. With no CAD model, they relied on many pictures and many follow-up prompts.
Claude also read the user and service manuals to understand how the machine works. The maker says the internal mechanism is not perfect but shows the basic idea; the demo can run a 100 ÷ 7 subtractive division.
How it was done
Tools
Themes
Loading themes…
Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: Used Claude to make this Curta simulator in the browserReddit poster: timsamPosted
The maker's post on r/ClaudeAI.
If it disappears: archived copy of Reddit: Used Claude to make this Curta simulator in the browser (opens in a new tab)
- The project: vcalc.net
Linked in the post.