Modular Laboratory Bracket (Fully 3D Printed)

This is a fully 3D-printable modular bracket system designed for workspaces. We created this project during our course at NaUKMA to solve a common problem: the inconvenience of checking datasheets while working with electronics or robots. This bracket allows you to fix a phone exactly where you need it

Features:

• 100% 3D Printed:No screws, bearings, or magnets required — every single part is printed.

• Rubber Band Tension:The phone holder uses standard office rubber bands for a secure grip.

• Modular System:Includes a quick-change system for different attachments.

• Step-Rotating Mechanism:Provides stable positioning without slipping.

• Tool-less Assembly:Designed to be easily assembled and scaled for any laboratory desk.

Print Settings

• Printer: FDM (Bambu Lab A1 or similar)

• Supports: Yes (for some modules)

• Resolution: 0.2 mm

• Infill: 25% Gyroid (Recommended for maximum multi-directional strength)

• Wall Line Count: 4 - 6 (Critical for the strength of joints and the clamp)

Filament: PETG or ABS

How it’s made

The system consists of four main modules developed by our team:

1. Desk Mount : A sturdy base that clamps to the table using printed bolts.

2. Step-Rotating Joint : A mechanism that allows incremental movement and secure fixation.

3. Extension Module : Provides two-axis adjustment and extends the reach.

4. Quick-Change Phone Holder : A rack-and-pinion mechanism that securely grips your phone

The entire project was modeled in Fusion 360