Retractable Cup Holder – Print-in-Place Desk Mount

A clean and practical retractable cup holder designed to keep your drink within reach while saving desk space. The sliding mechanism is fully print-in-place, allowing smooth deployment straight off the printer with no assembly required for the moving parts.

Perfect for minimalist setups, gaming desks, workshops, or home offices.

Features

• Print-in-place sliding mechanism

  • No additional assembly needed for the retractable main body

  • Smooth pull-out and push-back action

• Space-saving design

  • Slides neatly under the desk when not in use

• Secure mounting system

  • Outer casing is fixed using M4x16 wood screws

  • Stable and reliable for everyday use

• Universal cup support

  • Fits most paper cups, cans, and tumblers

• Strong lightweight structure

  • Reinforced geometry for rigidity while minimizing material usage

Installation

1. Position the casing underneath the desk edge

2. Secure it using M4x16 wood screws

3. Slide lock by 2 pins

Printing Recommendations

• No supports required

• Recommended layer height: 0.2 mm, infill 15% Gyroid, 4 walls

• Recommended material: PETG

Design Notes

The goal of this design was to create a compact under-desk cup holder that feels integrated into the workspace while remaining easy to print and install. The retractable mechanism keeps the desk visually clean and prevents accidental bumps when not in use.

Designed with a balance between:

• smooth sliding performance,

• structural strength,

• and efficient material usage.

Enjoy the extra desk space and cleaner setup!