Brackets and mounts
Sliding Door Header Beam Exploded Assembly
- Bounding box
- 4500.0 × 75.0 × 100.0 mm
- Engine
- Precision B-rep
- Parameters
- 37
- Published
- September 7, 2026
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Free to download and use. See the terms.
The prompt
Main Structural Header Beam Generate a single editable 3D CAD part and export it as a STEP file. Part: structural steel header beam for supporting a sliding door rail and linear actuator system. Units: millimetres. Geometry: • Rectangular hollow section. • Overall length: 4500 mm. • Section size: 100 mm high × 75 mm deep. • Wall thickness: 5 mm. • Material representation: structural steel. Include: • Flat front mounting surface for SBR20 rails. • Flat upper or rear mounting surface for linear actuator brackets. • Repeating M8 clearance mounting holes along the front face at approximately 250 mm centres. • Additional mounting holes near the centre and both ends for structural brackets. Do not add decorative details. Output: • One STEP file. • Single solid body. Place the origin at the centre of the beam length and centre of the cross-section. ________________________________________ Vertical Structural Support Post Generate a single editable 3D CAD part and export it as a STEP file. Part: steel support post for one end of a sliding door header beam. Units: millimetres. Geometry: • Vertical square hollow section. • Section: 75 mm × 75 mm. • Wall thickness: 5 mm. • Overall post height: 2400 mm. • Base plate: 150 mm × 150 mm × 10 mm. • Four floor anchor holes in base plate. • Anchor hole diameter: 14 mm. • Top connection plate: 150 mm × 100 mm × 10 mm. • Add two triangular gussets between the post and top plate. The post will support both vertical rail loads and horizontal linear actuator reaction forces. Use welded fabricated construction. Output: • One STEP file. • Single fabricated part. Place origin at the centre of the base plate on its bottom face. ________________________________________ Centre Rail Support Bracket Generate a single editable 3D CAD part and export it as a STEP file. Part: centre mounting bracket supporting the adjacent inner ends of two SBR20 linear rails. Units: millimetres. Purpose: Two separate 2000 mm SBR20 rails meet above the centre of a double sliding door. No bearing block crosses the joint. Geometry: • Main steel plate approximately 200 mm wide × 120 mm high. • Plate thickness: 6 mm. • Provide two separate mounting areas, one for the left rail and one for the right rail. • Maintain both rail mounting surfaces at identical height. • Provide slotted holes for vertical and horizontal alignment. • Use M8 mounting slots. • Leave a nominal 3 mm gap between rail ends. • Include mounting holes for attachment to a structural header beam. The bracket must support the ends of both rails independently. Output: • One STEP file. Place origin on the centreline of the rail joint.
Parameters
| Name | Value | Range |
|---|---|---|
| Beam length | 4500 mm | 4400 – 6000 |
| Beam height | 100 mm | 60 – 160 |
| Beam depth | 75 mm | 50 – 150 |
| Beam wall thickness | 5 mm | 3 – 10 |
| Rail mounting hole diameter | 9 mm | 8 – 12 |
| Rail hole spacing | 250 mm | 150 – 400 |
| Rail hole pattern half-extent | 2150 mm | 1000 – 2150 |
| Structural bracket hole diameter | 9 mm | 8 – 12 |
| End bracket hole X offset | 2100 mm | 1000 – 2150 |
| Top bracket hole Y spacing | 40 mm | 20 – 60 |
| Post total height | 2400 mm | 1800 – 3000 |
| Post square section size | 75 mm | 50 – 100 |
| Post wall thickness | 5 mm | 3 – 8 |
| Base plate size | 150 mm | 120 – 200 |
| Base plate thickness | 10 mm | 6 – 16 |
| Top plate X length | 150 mm | 120 – 200 |
| Top plate Y width | 100 mm | 80 – 150 |
| Top plate thickness | 10 mm | 6 – 16 |
| Floor anchor hole diameter | 14 mm | 12 – 18 |
| Anchor hole inset from base edge | 25 mm | 15 – 50 |
| Gusset vertical height | 50 mm | 30 – 100 |
| Gusset thickness | 10 mm | 6 – 16 |
| Bracket width | 200 mm | 180 – 300 |
| Bracket height | 120 mm | 100 – 200 |
| Bracket plate thickness | 6 mm | 4 – 12 |
| Rail end gap | 3 mm | 2 – 6 |
| Central gap groove length | 30 mm | 15 – 60 |
| Central gap groove depth | 2 mm | 1 – 4 |
| M8 slot width | 9 mm | 8 – 12 |
| Vertical slot length | 16 mm | 10 – 30 |
| Horizontal slot length | 22 mm | 12 – 40 |
| Vertical slot X offset | 60 mm | 20 – 70 |
| Horizontal slot X offset | 35 mm | 15 – 50 |
| Header mounting hole diameter | 9 mm | 8 – 12 |
| Header hole X offset | 80 mm | 40 – 85 |
| Header hole Z offset | 40 mm | 25 – 45 |
| Layout gap between parts | 2600 mm | 2350 – 10000 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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