Internal Links

Inc. GST

This internal hardware component functions as a hidden connector to form seamless line or angle joints for 20 Series V-Slot and T-Slot aluminium extrusion profiles. It slides inside the extrusion channels and secures via the included M5 grub screws, ensuring a concealed connection that does not interfere with external components or linear motion hardware. Available in 60°, 90°, 120°, 135°, and multi-way configurations, it establishes precise alignment where external space is restricted. Typical applications include constructing or expanding frameworks for 3D printers, CNC routers, and robotics enclosures where joints must remain unobstructed for wheels or utility hardware to clear smoothly.

Compatible With

Description

Technical Overview

Internal Links form a hidden, internal join for 20 Series V-Slot and T-Slot aluminum extrusion profiles. These handy structural links slide completely inside the extrusion channels. As a result, they facilitate clean, seamless line or angle connections. Crucially, they do not interfere with external components, plates, or linear motion hardware.

Furthermore, builders can complete assembly quickly and easily. They simply secure the link inside the profile slots by tightening the included M5 grub screws. Consequently, the connector delivers reliable structural stability. This stability benefits various mechanical frames, custom machines, or modular framing setups that require two or more extrusions to join securely.

Applications

Engineers and builders frequently employ these internal links to construct or expand structural frameworks. Specifically, they use them for custom machines, 3D printers, CNC routers, and modular robotics enclosures. Therefore, these links serve as an ideal solution for applications that require a clean aesthetic. They also solve problems in projects where external mounting space remains restricted.

In addition, the manufacturer offers a versatile range of angles and configurations. These choices include 60°, 90°, 120°, 135°, and multi-way variations. Each variation securely joins standard 20-series T-Slot and V-Slot linear rails at precise alignments. As a result, the links work exceptionally well in modular frame assemblies. They excel particularly where structural corners must remain entirely unobstructed so that wheels or utility hardware can clear the joints smoothly.

Maker Store Tips and Tricks

Ensure the aluminum extrusion faces are cut completely flush and square before inserting the internal link to maximize rigidity and ensure a neat seam.
Slide the link equidistant into both matching extrusion slots before tightening the grub screws to prevent uneven loading or weak joints.
Use a high-quality 2.5mm hex key during assembly to torque the M5 grub screws properly without stripping the hex drive socket.
Periodically inspect the tightness of the grub screws if the modular assembly is subjected to continuous vibrations from stepper motors or moving axes.