3D Printable Opisometer / Curvimeter / Map Wheel

A mechanical curvimeter (map measuring wheel) design optimized for 3D printing, featuring a classic analog display and ergonomic triangular body. 

Components

- Circular dial face, 36mm in diameter
- White background with black markings from 0-99cm
- Center-mounted rotating pointer 
- Triangular shape for comfortable grip
- Dimensions: approximately 70mm x 70mm x 10mm
- Mounting holes for dial assembly
- Integrated axle system

Measuring Wheel take one turn when drive wheel teke route 100cm

Technical Specifications
- Material: PLA or PETG recommended
- Layer height: 0.16mm or lower for detailed parts
 

Use glue or screw connections for main body components.

Recomend screw size M2x4mm

[https://eu.store.bambulab.com/collections/fasteners-1/products/m2-socket-head-cap-machine-screws-shcs](https://eu.store.bambulab.com/collections/fasteners-1/products/m2-socket-head-cap-machine-screws-shcs)
 

This design combines traditional curvimeter functionality with modern 3D printing capabilities, creating a practical tool for map distance measurements.