Rotating Math Roller: Learning Math Through Play!

Turn math study into a fun and creative activity! This 3D-printed modular stamp is the perfect tool for parents, teachers, and children. It allows you to create endless operations and exercises in seconds, making learning dynamic and visual.

Key Features:

Full Symbol Set: Includes the four fundamental operators (+, -, x, /, ) and comparison symbols (>, <, =).

Modular Design: Thanks to the interchangeable strips, you can customize the rollers to vary numbers and symbols as you wish.

Educational & Interactive: Ideal for primary school students to practice multiplication tables, column addition, or number comparisons.

Easy to Use: Ergonomic handle designed specifically for small hands.

Printing Notes:

Recommended Material: PLA (for rigid parts) and TPU A95 or a soft filament for the number strips (for better ink absorption).

Supports: Not necessary if oriented correctly.

Step-by-Step Assembly Instructions

Prepare the Strips: Take the flexible TPU strips and wrap them around the individual rollers. Ensure the numbers/symbols are facing outwards.

Secure the Fit: Align the ends of the strip with the slots on the roller until they click perfectly into place.

Core Assembly: Slide the assembled rollers and the springs onto the central hexagonal shaft.

Locking Mechanism: Insert the side support and the locking screw to keep everything aligned.

Final Check: Ensure the rollers can spin freely to change the operations, then tighten the side knob.