Infinity Train filled its cast with robots, creatures, and constructs that each carry a specific visual logic, and One-One fits right into that Infinity Train lineup as one of the most stripped-back designs in the show. This tutorial walks through how to draw One-One in just 6 steps, focusing on the single-sphere front-facing version of the character.
A Six-Step Build Around the Simplest Shape
The drawing covers one half of the dual-sphere robot, rendered as a single round form with minimal surface detail. All 6 steps work toward clean line art rather than a colored result, so the focus stays on getting the proportions of the circle and the placement of the stripe and dots right. Because the silhouette is so compact, small placement errors read more obviously than they would on a complex character.
What One-One Looks Like on the Page
- Large round spherical body, simple outline
- Vertical black stripe running down the center
- Two small circular dots on the stripe
- Small clawed feet at the base
- Single sphere shown, not the paired design
If you want more practice with the Infinity Train roster, Atticus offers a good contrast with its quadruped build, and the guides for Jesse Cosay and Tulip Olsen cover the human characters from the series.
Reading the Color Coding in the Step Images
Each step image uses a three-color system to show what is happening at each stage:
- Red Color: lines added in the current step.
- Black Color: lines completed earlier.
- Gray Color: base sketch for structure.
How to Draw One-One: Step-by-Step Tutorial
Share Your One-One Sketch When You’re Done
Once you finish, drop your drawing in the comments below. It is always good to see how different approaches to a simple shape like this one turn out. New tutorials go up on Facebook and Telegram as soon as they are published, a new YouTube video based on existing guides posts every single day, and Pinterest stays updated regularly too. For more Infinity Train characters, the guides for Alan Dracula and Lake (Mirror Tulip) are worth checking out next. If you want to support the site and get access to unique hand-drawn coloring pages, the Patreon page is the place to go.