SPARSH — co-creation robot for disabled artists

How It Works

How SPARSH Works

SPARSH is a co-creation robot with two modes. In both, the robot handles the physical barrier — and the artist makes every creative decision, finishes the painting by hand, and signs it. The painting is always 100% the artist's.

Two Ways to Create

The Artist Chooses. Always.

Co-Creation Mode

Joystick control

The artist controls the drawing mechanism directly with a joystick — using their foot, mouth, or any movement they have. Small joystick movements become precise CNC motion on A2 paper. Every line on the paper is drawn by the artist; SPARSH makes those lines precise, consistent, and strain-free. The artist controls when the pen lifts, which direction to draw, and when to change colour.

AI-Assisted Mode

Voice + design library

The artist says a subject name — "Draw a sunflower" — and SPARSH picks that design from its built-in library and draws the structural outline on A2 paper. Then the artist takes over completely: all colour, shading, texture, and detail. Artists can bring traditional motifs from their own culture — Warli figures, Madhubani lotus patterns, Gond birds — SPARSH draws the structure, the artist brings the tradition to life.

In both modes, the automatic tool changer handles colour switching — no helper needed at any stage. Every painting ends with the artist's signature.

Inside the System

What SPARSH Is Made Of

VISTAAR — The Gantry

What it is: A Cartesian X-Y CNC system built on aluminium V-slot profiles, with LEGO Technic joints, acrylic panels, and an MDF base for stability.

What it does: Moves the pen precisely to any point on A2 paper using NEMA 17 stepper motors, DRV8825 drivers, and a lead screw drive — so every line lands exactly where the artist intends.

SPARSH Engine & Dashboard

What it is: Software built in PictoBlox and Python, written entirely by Nysa and Neev, running on a laptop.

What it does: The dashboard is the control screen — mode selection, artwork library, robot status, tool status, live movement display, and an emergency stop.

Joystick Input

What it is: An XYZ joystick module the artist operates with their foot, mouth, or any part of their body they can control.

What it does: Small joystick movements become precise CNC motion. The artist controls direction, pen lift, and colour change — every line is theirs.

Voice Recognition

What it is: PictoBlox speech recognition that matches spoken words to a fixed design library.

What it does: The artist says a subject — "Draw a sunflower" — and SPARSH selects that design and draws its structural outline. No generative AI is used anywhere in SPARSH (WRO Rule 6.5).

Automatic Tool Changer

What it is: A dedicated rack holding multiple pens, markers, and brushes.

What it does: SPARSH releases the current tool, picks the next one, locks it, and continues — so the artist changes colours with no helper at any stage.

Servo Pen Lift

What it is: MG996R and SG90 servos controlling pen height and tool locking.

What it does: Raises and lowers the pen automatically so there are no unwanted marks between strokes, with pressure tuned so the pen neither tears the paper nor draws too faintly.

“The joy is in making the art. Not in watching a machine make it.”

Nadeem Shaikh — the sentence that changed our entire project

What Makes SPARSH Different

Our Key Innovations

  1. 01Two modes — and the artist chooses which one fits them, every painting
  2. 02Joystick control works with the foot, mouth, or any movement the artist has
  3. 03Voice commands match a fixed design library — no generative AI anywhere in the system
  4. 04The automatic tool changer means no helper is needed at any stage
  5. 05Artwork comes out at A2 — three times bigger than the A4 most artists can physically sustain
  6. 06Built from standard parts available in any Indian electronics market
  7. 07The artist personally finishes every painting and signs it — it is always 100% theirs

A complete SPARSH system costs approximately ₹15,000–₹20,000 to build, using standard parts and open-source software. A single large commissioned artwork can sell for ₹15,000–₹20,000 — one painting can recover the entire cost of the system.

Co-Creation, Not Automation

A printer takes a saved file and prints it. SPARSH does not. It takes a human signal — a joystick nudge from a foot, a spoken word — and turns it into precise mechanical motion, while the artist keeps every creative decision. The robot draws structure. The artist creates art. And every painting ends the same way: with the artist's own signature.