20mm Plastic T-Slot

thingiverse

Revamped 20mm Plastic T-Slot Beam: Faster Printing and Stronger Design Our latest version of 20mm plastic T-slot beam boasts an improved design that ensures faster printing process and enhanced strength against deflection and torsion. We've recently added DXF files for profiles, making it easier to choose the right one according to your requirements. The naming convention is [dimensions]-[bolt size]-[Wall Thickness]-[Multiplier]. We suggest using 1.6mm wall thickness profiles for optimal results when printing with .8mm trace widths, as they provide quick and robust beams. These beams are primarily designed to serve as the main structural component for a 3D printer, but they can also be used for general hobby framing and mounting purposes. For ABS-printed beams, use a T-Slot Welding Jig with ABS Glue for seamless fusion. Adding a center hole increases the beam's second moment of inertia while aiding in fusing multiple beams. PLA beams offer increased rigidity but may require extra effort for fusion. Friction Fit hardware, such as those available here and here, are compatible with standard 20mm T-slot profiles. These profiles can accommodate M3 hardware along with 6-32 nuts and bolts, with insert provisions for captive nuts. Alternative profiles for M4/8-32 hardware and dedicated M3 and 6-32 options are also available in the "20mm Profiles - Printing.skp" file. To ensure fast printing, follow the instructions provided. While any working profile can be used, the recommended one will yield optimal results in terms of speed and structural integrity. Files such as "100mm Beam.stl," "20mm Test Beam.stl," and M3 Nut Insert.stl are available for download. Stay tuned for more T-slot profiles compatible with Thing-O-Matic, Ultimaker, and Mosaic printers at various resolutions and speeds. An OpenScad version is also in the works to facilitate the design of custom hardware accessories.