Adjustable Articulated Phone Stand (3D Printed)

This project is a modular articulated phone stand designed for 3D printing.
The construction uses multiple joints to allow flexible positioning of the phone while maintaining a horizontal orientation of the holder throughout the entire arm.

The stand is designed to be anchored to a horizontal board or another flat, rigidly fixed object.

🧩 Design and Functionality

The arm of the stand consists of two parallel arm segments, connected through joint assemblies.
Thanks to this dual-arm design, both the joints and the phone holder remain level at all times, regardless of the arm’s angle.

The arm is divided into two main sections:

• one section between the mounting joint and the central joint

• one section between the central joint and the end joint

🧱 Parts List

Total number of parts: 22

Arm components

• 4× arm part with peg

• 4× arm part with slot for peg

• 8× connecting pins

Joints

• 1× mounting joint with stop for anchoring to a surface

• 1× central joint

• 1× end joint for attaching the rotating mechanism

Rotating mechanism and holder

• 1× cylinder with groove and four pegs

• 2× square pins for fixing the cylinder

• 1× phone holder

🛠 Assembly Instructions

1. Assemble the arm segments
   Assemble 4 arm segments, each consisting of:

   • one arm part with a peg

   • one arm part with a slot

2. Connect arms to joints

   • Insert 2 arm segments between the end joint and the central joint

   • Insert 2 arm segments between the central joint and the mounting joint

   • Secure all connections using the 8 connecting pins

3. Install the rotating mechanism

   • Attach the grooved cylinder to the phone holder

   • Insert the cylinder (with holder attached) into the hole in the end joint

   • Secure the cylinder using two square pins

4. Finished
   The stand is now fully assembled and ready for use.

📐 Compatibility and Requirements

• Phone compatibility:
  ✔ Works only with Redmi Note 13 Pro

• Mounting surface:

  • horizontally oriented board or other flat, rigidly fixed object

  • maximum thickness: 1.2 cm (or slightly less)

⚠ Disclaimer and Liability

The author is not responsible for any injuries, damages, or other harm caused by rapid acceleration of the object toward a wall or another person, particularly when such acceleration is achieved using the upper limbs while in a state of strong negative emotions induced by this product.

Use of this stand is entirely at your own risk.