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The Truss Tester Accessory for the Go Direct Structures & Materials Tester (GDX-VSMT) provides a fast and effective method to evaluate the strength of trusses. Students use the tester to collect data that allows them to evaluate parameters affecting truss strength and apply engineering design principles to improve truss performance. This is a great tool for use in designing a truss-based bridge, tower, or other structure.
The Truss Tester Accessory for the Go Direct Structures & Materials Tester (GDX-VSMT) provides a fast and effective method to evaluate the strength of trusses. Students use the Structures tester to collect data that allows them to evaluate parameters affecting truss strength and apply engineering design principles to improve truss performance. This is a great tool for use in designing a truss-based bridge, tower, or other structure.
The Truss Tester Accessory attaches to the Structures tester to measure the force and deflection of trusses. The Truss Tester Accessory holds a single truss upright and allows the load to be applied in a variety of locations. Students can design their own investigations to determine how trusses fail and how truss performance can be improved.
The accessory attaches quickly and securely to the Structures tester frame and load cell. It is designed for trusses built with 6mm square balsa wood sticks with an 20cm base and a maximum height of 17.8cm. Trusses can be top loaded, bottom loaded, or loaded on the slope of the truss structure. Use with truss brackets for quick and consistent truss construction.
We have created a very simple corner bracket to assist in building trusses with 6mm square balsa. This allows students to quickly and efficiently build trusses to test in the Truss Tester Accessory without waiting for glue to dry. It also removes much of the variability students would encounter in constructing trusses from scratch. Two brackets come with the tester. A 3D printer file of the truss bracket is available if additional brackets are desired.
(2) Clear shatter-proof polycarbonate truss holder side pieces
(6) 13mm diameter plastic spacers with #10 screws
Aluminium attachment with 6mm -20 threaded pull
10.2cm threaded rod (6mm-20)
The truss holder consists of a pair of side panels that hold the truss being tested and prevent the truss from tipping over. A support post connects to the top rail of the Structures tester with standard 80/20® fittings. The truss holder is connected to the support post through a plastic bearing shoe that glides up and down in the grooved post. The truss holder also connects to the load cell (force sensor) with a 10.1cm threaded rod that screws into the top of the load cell. The Truss Tester Accessory applies the force to the truss through 13mm diameter spacers that can be positioned for a variety of loading locations.
