20mm Plastic T-Slot

cults3d

Human: 20mm Plastic T-Slot - Rev 2 Completely redesigned; the new beam prints faster and is stronger against both deflection and torsion. UPDATE: Added DXF of Profiles. Naming convention is [dimensions]-[bolt size]-[Wall Thickness]-[Multiplier]. We prefer 1pt6 (1.6) wall thickness profiles, find printing them No Infill, 1 Extra Loop, No solid Layers, with a trace thickness of .8mm results in a quick and strong beam. These beams are designed as the main structural component for a 3d printer though they are also useful as a general hobby framing and mounting set. They are designed with both printing and commercial extrusion in mind. If printed in ABS, they can be solvent welded with the aid of a T-Slot Welding Jig and ABS Glue. A center hole increases the beams second moment of inertia while aiding in fusing beams. PLA beams are more rigid though they are not as easy to fuse into various lengths. The standard beam profile accommodates both M3 hardware as well as 6-32 nuts and bolts. Both bolt heads or nuts fit in the slot with an insert provided to help guide and captive M3 nuts. 6-32 Nuts will captive natively. Alternative profiles are provided for M4 / 8-32 hardware as well as dedicated M3 and 6-32. All profiles are located in "20mm Profiles - Printing.skp". Use the 'Push/Pull' tool to create a profile of the desired length. If printing instructions are followed, these beams can be printed fast (going at even a moderate pace we're able to produce all the beams needed for a Prusa in under 12 hours). While the beams can technically be printed with any working profile, they will not print as quickly and may not perform as intended structurally. Files 100mm Beam.stl - actual height is 101mm to allow for loss during welding 20mm Test Beam.stl - shorter for testing settings M3 Nut Insert.stl - use with metric hardware 20mm Profile-Printing.skp - profile faces for printing and creating different heights 20mm Profile-True.skp - diagram of a properly printed profile 20mm Profile-Printing-pt4.skp - profiles based on 0.4mm widths, contains a M5 profile M3 Nut Insert.skp - source file for insert Check Back For T-slot Profiles for Thing-O-Matic, Ultimaker & Mosaic at various resolutions and speeds. OpenScad version to ease design of compatible hardware and accessories.