Create beautiful crochet rainbow wall hangings with this 3D printable rainbow base, designed to give your fiber art projects a clean, structured foundation.

This model includes three sizes (Small, Medium, Large), all using the same shape and hole layout for consistent results across different projects. The base features 9 mm holes, which are perfectly sized for 5 mm cord, making stitching smooth, even, and beginner-friendly.

The minimalist rainbow shape works especially well for modern and Scandinavian-style décor, while the sturdy printed base keeps your crochet work neat and well-supported.

Features

• 3D model files for 3 sizes: S / M / L

• Same proportions and hole spacing across all sizes

• 9 mm hole diameter – ideal for 5 mm cord

• Integrated hanging loop