How it works, not just what it's called
A schematic tells an expert everything and a beginner almost nothing. The walkthrough adds the missing story: where the energy comes in, what each stage does to it, and what comes out. Current and fluids move along the drawing's own lines, and parts that move (a rotor, a piston, a valve) move on the drawing.
Who uses it
- Engineering and electronics students: the induction motor, the transformer, a rectifier, an amplifier stage, a four-stroke engine.
- Technicians and apprentices: how the pump, compressor or gearbox in front of you works, from its manual's drawing.
- Makers and hobbyists: explain your own circuit or build to others.
- Companies: show customers how a product works from its technical drawing, or explain a system to a new colleague (see training diagrams).
Drawings that read well
Clean line drawings and schematics with labels or clear shapes work best, including ones labelled only by letters or numbers: the parts are named by what they are. Very dense sheets work better when you ask about one subsystem: "Explain the cooling circuit".
How it works
- Add the drawingA PNG or a straight photo of the schematic, cross-section or exploded view.
- Point it at what matters"How does this motor start?" or "Explain the feedback loop", or leave it empty for the main idea.
- Check and exportEdit any line of the narration, then download the video.
Questions
Is my picture redrawn?
No. The video is made on the exact picture you upload, so every label matches your source. Only the camera, highlights, labels and moving dots are added.
Which languages?
Eleven: English, Arabic, Urdu, Hindi, Spanish, French, Portuguese, German, Italian, Russian and Polish. Narration, captions and labels are in the language you pick, even when the picture is in English.
Will it get technical details right?
It reads the drawing and checks its own work against it, but it can be wrong on detail. Read the narration in the studio and correct any line before you share it.
Is it free?
You can try it free with a Google sign-in. Students and teachers who sign in with a school email (.edu, .ac.uk, .edu.pk and the like) get ContentRoof Pro free.
Updated 2026-11-14