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Interactive 3D model of Open-Top Electronics Chassis with Motor and Fan Features

Brackets and mounts

Open-Top Electronics Chassis with Motor and Fan Features

1 views
Bounding box
320.0 × 220.0 × 246.0 mm
Engine
Precision B-rep
Parameters
21
Published
September 30, 2026

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The prompt

Create a single contiguous open-top rectangular chassis made of solid walls. Dimensions: outer width 220 mm, length 320 mm, height 180 mm, with the top completely open. Add the following features: 1. BOTTOM MOTOR PLATFORM: - Add a centered 100 x 100 x 8 mm platform at the bottom. - Add four vertical support posts around the platform for an RS-550 motor, with a 38 mm internal diameter clearance, shaft pointing upward, and M4 clearance holes. 2. CONTROLLER COMPARTMENT: - Create an adjacent empty internal space measuring 180 x 120 x 150 mm for electronics. 3. COOLING FANS: - Add two lateral fan cutouts connected to the controller space. - Each cutout: 105 x 105 mm with four 4.5 mm mounting holes in a 105 x 105 mm pattern (for 120x120x25 mm fans). One side as air intake, opposite side as air exhaust. 4. CABLE PASS-THROUGH HOLES: - Add four 20 mm diameter through-holes near the motor and controller areas.

Parameters

NameValueRange
Outer Length320 mm280 – 500
Outer Width220 mm180 – 400
Outer Height180 mm100 – 300
Wall Thickness6 mm3 – 12
Motor Platform Size100 mm60 – 150
Motor Platform Height8 mm4 – 20
Motor Clearance Diameter38 mm20 – 60
M4 Clearance Hole Diameter4.5 mm4 – 6
Support Post Radius5 mm3 – 10
Support Post Height60 mm20 – 100
Controller Compartment Length180 mm100 – 300
Controller Compartment Width120 mm80 – 200
Controller Compartment Height150 mm100 – 200
Controller X Offset60 mm-100 – 150
Fan Cutout Size105 mm80 – 120
Fan Mount Hole Diameter4.5 mm4 – 6
Fan Mount Pattern Size105 mm80 – 120
Fan X Center60 mm-100 – 150
Fan Z Center90 mm40 – 140
Cable Hole Diameter20 mm10 – 40
Cable Hole Count4 mm1 – 8

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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Open-Top Electronics Chassis with Motor and Fan Features - Free CAD Model (STEP, STL) | TextoCAD