PLASTRUCT ELBOW 90 FOR TB40(1)

The Plastruct E-40 is a precision-molded 90° elbow fitting designed specifically for use with TB-40 Traditional Butyrate Round Tubing. Made from durable butyrate plastic, this component allows modelers to create clean, accurate right-angle turns within various piping layouts. It is part of Plastruct's extensive line of structural and detailing elements used in modeling, prototyping, and miniature construction.

Applications and Use Cases

This elbow fitting is highly versatile and suitable for a wide range of modeling environments. It is commonly used to construct piping systems in industrial and commercial scale models, as well as residential plumbing layouts in dollhouses. Beyond architectural uses, it also fits well in the world of scale automotive modeling, supporting the construction of roll cages, exhaust assemblies, and scratch-built chassis. Additionally, it serves as an excellent creative tool for classroom and educational settings that utilize Plastruct's D&T Packs.

Assembly Features and Functionality

The E-40 elbow is engineered for convenience with a design that allows temporary press-fit assembly, enabling builders to test and adjust layout configurations before committing to final placement. While pieces may hold together through friction, permanent installation requires the use of compatible cement adhesives to ensure long-lasting and secure bonds. This approach gives modelers flexibility during planning while still providing durability once assembly is complete.

Manufacturing Details and Design Structure

Plastruct's butyrate elbows are precision injection-molded to maintain consistent dimensions and high-quality finishes. Sizes 3 through 24 are formed as solid, one-piece components, providing strength and reliability for smaller tubing. In contrast, larger sizes-specifically sizes 28 through 40-are molded in two halves and assembled into a hollow structure. This method reduces material weight while maintaining the required shape and structural integrity. The E-40, being a size 40 elbow, falls into this two-piece, hollow-form category.

Compatibility and Dimensional Notes

The "H Dimension" referenced in Plastruct's specifications corresponds directly to the outside diameter (O.D.) of the compatible tubing, ensuring accurate connections and a proper fit when matched with TB-40 tubing. Although most sizes within the series are supported, elbow fittings are not available for TB-1 and TB-2 tubing due to their wire-core construction, which limits compatibility. The E-40 fitting is designed to work across all scales, making it a flexible choice for hobbyists, educators, and professional model builders alike.