Brackets and mounts
Adjustable Desk-Mount Monitor Arm
- Bounding box
- 888.6 × 127.0 × 246.0 mm
- Engine
- Precision B-rep
- Parameters
- 44
- Published
- October 29, 2026
Download
Free to download and use. See the terms.
The prompt
Design a parametric 3D CAD assembly of an adjustable desk-mounted monitor arm for a Xiaomi A24i monitor. Requirements: * VESA mounting pattern: 75 × 75 mm. * Desk thickness: 20 mm. * Maximum horizontal reach: 300 mm. * Two articulated arm segments. * Adjustable monitor height. * Horizontal rotation and adjustable screen tilt. * C-shaped desk clamp with a hand-tightened screw and protective desk pads. * Separate parts for the clamp, arm segments, pivots, locking knobs, and VESA plate. * Designed for printing on a Bambu Lab A1 mini. * Minimize the number of separate parts. * Provide an assembly preview, dimensioned drawings, and individual STEP and STL files. Important: * Model all joints and fasteners explicitly. * Check for collisions and verify that the parts can actually be assembled. * Include realistic clearances for 3D printing. * Do not claim the assembly is load-rated without structural analysis and physical testing. * Clearly identify any parts that require metal hardware.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout Gap | 20 mm | 5 – 80 |
| Clamp Depth | 80 mm | 50 – 140 |
| Clamp Width | 70 mm | 40 – 120 |
| Jaw Gap | 22 mm | 12 – 60 |
| Jaw Thickness | 14 mm | 6 – 30 |
| Spine Thickness | 14 mm | 6 – 30 |
| Sleeve Outer | 44 mm | 30 – 70 |
| Sleeve Height | 60 mm | 30 – 120 |
| Screw Diameter | 8 mm | 4 – 12 |
| Screw Length | 80 mm | 40 – 140 |
| Knob Diameter | 45 mm | 25 – 80 |
| Knob Thickness | 15 mm | 8 – 30 |
| Swivel Pad Diameter | 25 mm | 12 – 40 |
| Pad Length | 25 mm | 12 – 45 |
| Pad Width | 20 mm | 10 – 40 |
| Pad Thickness | 2 mm | 1 – 6 |
| Pad Recess | 0.5 mm | 0.2 – 2 |
| Column Length | 160 mm | 80 – 240 |
| Column Width | 30 mm | 15 – 50 |
| Column Depth | 30 mm | 15 – 50 |
| Lock Hole Dia | 6 mm | 3 – 10 |
| Lock Hole Pitch | 12 mm | 8 – 30 |
| Lock Hole Count | 6 | 2 – 12 |
| Clevis Gap | 12 mm | 6 – 30 |
| Clevis Depth | 14 mm | 6 – 40 |
| Lock Knob Dia | 30 mm | 15 – 50 |
| Lock Knob Height | 15 mm | 8 – 30 |
| Heat-Set Insert Dia | 6.5 mm | 3 – 12 |
| Pivot Bolt Dia | 6 mm | 3 – 10 |
| Pivot Bolt Length | 45 mm | 20 – 80 |
| Pivot Clearance Hole | 6.4 mm | 3 – 11 |
| Arm Length | 150 mm | 80 – 180 |
| Arm Width | 30 mm | 15 – 50 |
| Arm Height | 25 mm | 12 – 45 |
| Tang Thickness | 11.4 mm | 5 – 28 |
| Tang Length | 18 mm | 8 – 40 |
| Cable Channel Width | 12 mm | 4 – 24 |
| Cable Channel Depth | 6 mm | 2 – 15 |
| VESA Plate Size | 90 mm | 60 – 140 |
| VESA Plate Thickness | 8 mm | 4 – 18 |
| VESA Pattern | 75 mm | 50 – 100 |
| VESA Hole Dia | 4.5 mm | 3 – 8 |
| VESA Screw Dia | 4 mm | 2 – 6 |
| VESA Screw Length | 12 mm | 6 – 25 |
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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