1010 T-slot extrusion, 1 × 1 in (10-series inch) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/1010-t-slot-extrusion-inch/ (CC BY 4.0) Basis: 80/20 Inc. 10 series (1 in), from 80/20's dimensioned drawing of this profile; every slot, lip, cavity, bore and outline number is the drawing's Catalog version: 2026-10-20 Overall (mm): width 25.4, height 25.4 - 1010 T-slot extrusion, 1 × 1 in (10-series inch): 1 × 1 in, 4 slots on a 1.000 in = 25.400 mm pitch (80/20 Inc. 10 series (1 in)). Source: 80/20's dimensioned drawing of this profile. Files: STEP and STL at 100, 1000 mm with square ends, and a DXF of the exact cross-section (mm), the master to extrude to any length. The section is centred on the origin and extruded along +Z from z = 0. - Slot: opening 0.256 in = 6.502 mm, lip 0.087 in = 2.210 mm thick at the opening under a 2° drop-lock slope (0.093 in = 2.355 mm at the cavity wall), cavity 0.584 in = 14.834 mm wide under the lips, 0.323 in = 8.204 mm from the face to the cavity floor. Centre bore Ø0.205 in = 5.207 mm per cell (the largest thread whose tap drill fits inside: 1/4-20, 5.1 mm). - Cavity side walls: the cavity is 0.584 in = 14.834 mm wide under the lips, then follows the diagonal webs (0.087 in = 2.210 mm thick, stated) down to the floor; the webs lie on the cell diagonals (45°), as drawn. - The drawing does not dimension the outer corner radii, so the corners are square: a pocket cut from this file clears the real rounded corners. The small alignment grooves on the faces are not dimensioned and are left off (the faces are flat). - Wrapping it: to make a part that fits around the bar, subtract the 1000 mm file (or extrude the DXF) from your solid; the outline is the drawing's 1 × 1 in with no allowance, so open the pocket by your process's socket fit (see Mating features). - Attachments: the 1 in 10-series T-nuts, end caps, feet, brackets, gussets, plates and slot covers are cut from these same numbers; the fit check (tools/asm_extrusion_fit.py) placed each one on this profile with zero overlap. feature size from outline 1 × 1 in drawing slot pitch 1.000 in = 25.400 mm drawing slot opening 0.256 in = 6.502 mm drawing lip thickness at the opening 0.087 in = 2.210 mm drawing lip underside slope (drop lock) 2° maker's page cavity width under the lips 0.584 in = 14.834 mm drawing face to cavity floor 0.323 in = 8.204 mm drawing cavity depth under the lip (at the cavity wall) 0.230 in = 5.849 mm drawing core between opposite floors 0.354 in = 8.992 mm pitch − 2 × face-to-floor (the drawing's own core figure is 0.356 in) diagonal web 0.087 in = 2.210 mm drawing centre bore Ø0.205 in = 5.207 mm × 1 drawing cross-section area 0.437 in² (282 mm²) maker's page weight 0.0424 lb/in (0.5088 lb/ft; 0.757 kg/m) maker's page (ft and kg/m converted) Ix / Iy 0.0442 / 0.0442 in⁴ maker's page area of this model's section 293.5 mm² (0.455 in²) computed from the DXF Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - 80/20 Inc.: 1010: 1.00 x 1.00 T-slotted profile, four open T-slots: product page with the cross-section drawing and section properties — web — 80/20 site terms [verify license at link] — https://8020.net/1010.html - 80/20 Inc.: 1010 dimensioned cross-section drawing — image — 80/20 site terms [verify license at link] — https://8020.net/media/catalog/product/1/0/1010_dimensional_4.jpg Free files (CC BY 4.0, Xem Studio; STEP + STL, 2 parts): https://xemstudio.com/files/hardware/1010-t-slot-extrusion-inch/index.json API: https://xemstudio.com/api/geometry?object=1010-t-slot-extrusion-inch