540.0245.0530.0
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Interactive 3D model of ATX Computer Chassis Frame

Enclosures and housings

ATX Computer Chassis Frame

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Bounding box
245.0 × 540.0 × 530.0 mm
Engine
Precision B-rep
Parameters
17
Published
September 11, 2026

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The prompt

​Create a rectangular computer chassis frame, 245 mm wide, 540 mm high, and 530 mm deep, with a wall thickness of 3 mm. Add a 220 mm wide by 86 mm high cutout at the bottom rear for a power supply. Add a 146 mm wide by 42 mm high rectangular hole at the top front for an optical drive. Add a 420 mm by 140 mm rectangular cutout centered on the top panel, and a 420 mm by 140 mm rectangular cutout centered on the front panel. Add a 140 mm high by 62 mm wide cutout on the rear panel for PCIe slots. ​Workflow Tips for Text-to-CAD ​Generate and Measure: Always measure critical features after exporting the STEP file, as the AI's output is a starting draft, not a finished production part. ​Tune Parameters: If using a platform with an editor (like TextoCAD or Zoo's Zookeeper), use the provided sliders to refine the exact millimeter dimensions if the initial generation slightly misses your radiator or PSU clearances. ​Iterate Single Parts: If the full chassis frame proves too complex for the AI to render accurately, break it down. Generate the flat panels, motherboard tray, and PSU shroud as separate, simpler prompts, then assemble the exported STEP files manually in standard CAD software.

Parameters

NameValueRange
Outer Width (X)245 mm100 – 600
Outer Height (Y)540 mm100 – 900
Outer Depth (Z)530 mm100 – 900
Wall Thickness3 mm1 – 10
PSU Opening Width220 mm50 – 240
PSU Opening Height86 mm20 – 200
PSU Opening Bottom Gap3 mm0 – 100
PCIe Opening Width62 mm20 – 240
PCIe Opening Height140 mm20 – 400
PCIe Opening Center Height270 mm10 – 530
Optical Drive Opening Width146 mm30 – 240
Optical Drive Opening Height42 mm10 – 150
Optical Drive Top Gap6 mm0 – 200
Front Cutout Width (X)140 mm20 – 244
Front Cutout Length (Y)420 mm50 – 538
Top Cutout Width (X)140 mm20 – 244
Top Cutout Length (Z)420 mm50 – 528

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.

ATX Computer Chassis Frame - Free CAD Model (STEP, STL) | TextoCAD