Pinch or click a number. If you don’t, it carries on by itself after 12 seconds using what it measured.
Hand control training v0.76 · 5 Nov 2026
About a minute of exercises that teach the Planetary Modeling Atlas how your hand moves, so the cursor reaches the
whole screen, your pinch is read reliably, and buttons are as easy to hit as you need.
Reach: move your open hand to four comfortable corners, and say how easy each one was.
Pinch: open your hand, then pinch thumb to index finger, a few times.
Hold still: keep the cursor on a dot for three seconds.
Targets: press eight buttons as they appear.
Fast: dart across the screen to a ring and stop on it, a few times.
After each step you can rate how it went from 1 to 7, or let it carry on by itself. Sit where you'll use the atlas.
Before you startThe camera picture is processed on this computer by the hand-tracking library and never leaves it. No video or photos are saved.Your profile (a few numbers) is saved in this browser only, where the atlas picks it up. Sharing it with the project at the end is optional and needs a GitHub account.This is an educational tool for adjusting a game-like control. It is not a medical test and does not measure or diagnose anything about your health or motor skills.
Saved in this browser. The atlas uses it the next time you start hand control, and 🎯 Adaptive aim keeps fine-tuning it as you go.
🎈 Bubbles popped
✋ Hands work here too: move onto a button and pinch. Pinch 🎈 Play again for a new round.
Kept in this browser only. The game uses your trained settings for the hand you play with and fine-tunes them a little after each round (the atlas picks that up). It pauses while your hand rests below the waist line.
Hand points, cursor, targets and presses only: no camera picture. Kept in this tab until you reload; sent nowhere.
🍉 Fruit sliced
✋ Hands work here too: move onto a button and pinch. Pinch 🍉 Play again for a new round.
Kept in this browser only. The fruit game measures fast movement: how fast your swipes are, how often a swipe cuts something, how far the cursor trails your hand while it moves fast and how far it runs past where your hand stopped, and how often the camera loses your hand mid-swipe. It doesn't change your settings. It pauses while your hand rests below the waist line.
✋ Hands work here too: move onto a button and pinch. Pinch 📦 Play again for a new round.
Kept in this browser only. The carry game measures holding a pinch while moving, how precisely you can place something, how often the disc slips and how the corners compare with the middle, and fine-tunes the trained settings of the hand that played (the pinch-off threshold, the hold on targets, smoothing, and the reach box toward slow corners). It pauses while your hand rests below the waist line.
Percentages from few rounds can change a lot; 10 or more rounds per option give a fair comparison. Pop: the share of your pinches that popped a bubble. Carry: the share of carries that landed in the square.
Right and left compared
Private: kept in this browser only and never included when you share results.
Share your results?
Shared results help the atlas choose better starting settings for everyone, especially people who find hand control hard. A bot
in the project combines them into shared defaults.
What is sent, and whereOnly the numbers below: measurements, your answers, your ratings, and a browser type. If the box is ticked, also your last game rounds (scores, counts and precision numbers). Also three camera calibration numbers per hand (hand-to-face distance, palm length, arm reach, in cm); nothing else about your face. No video, pictures, names or email addresses.It is posted as a public issue on the project's GitHub page under your GitHub account, so your GitHub username will be attached to it and anyone can read it. You need a GitHub account (13 or older), and you press the final Submit button on GitHub yourself.Students under 13, or anyone at a school, should check with a teacher or parent first. If you'd rather not, just go back: nothing is sent unless you submit the issue.