04. CONCEPT GENERATION - Q-div-Engg-Exploration-2026-27-Odd/Repo-4 GitHub Wiki
| Sl. No. | User Perspective | Designer Perspective (Implementation) |
|---|---|---|
| 1 | Draw required pattern | Generate continuous planar trajectories and geometric curves using dual-link arm actuation or eccentric vibration mechanics. |
| 2 | Hold the pen | Provide an adjustable, tool-less friction collar/clamp capable of securing 1 to 3 markers at a controlled tilt angle and tip height. |
| 3 | Provide forward and backward movement | Implement reversible DC motor actuation or coordinated motor kinematics to drive linear translation. |
| 4 | Change directions (left/right) | Introduce differential drive speeds or variable eccentric mass imbalance to steer motion vectors. |
| 5 | Maintain stable movement | Balance the structural center of gravity symmetrically over the base to equalize friction and downward normal force at pen tips. |
| 6 | Supply power to system | Integrate a portable low-voltage circuit bus powered by a standard 9V battery, 2×AA cells, or an 18650 Li-ion pack. |
| 7 | Control the motor speed | Regulate motor RPM via gear ratio selection, inline resistive throttling, or microcontroller PWM duty cycles. |
| 8 | Process the movement command | Execute trajectory routines via onboard firmware logic or a direct electromechanical switched circuit. |
| 9 | Indicate the completion of task / status | Wire an active indicator LED across the main power path to display live operational state. |
| 14 | Adjust drawing pressure and line thickness | Incorporate vertical threaded/slotted adjustment to tune pen tip contact force and prevent paper gouging. |
| 15 | Prevent slipping and boundary loss | Optimize base friction pads and mass distribution to prevent the robot from skidding off drawing surfaces. |
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