PALM-9 : Ultra-Compact Spy Gadget

🕵️ PALM-9 - Ultra-Compact Spy Gadget

Ring cap powered Ultra-Compact Covert capgun. 
Small enough to disappear. Smart enough to matter.

💳 The PALM-9 is a true undercover gadget.

Designed around the idea of absolute concealment, the PALM-9 folds down to a flat, card-like profile that vanishes into a pocket, wallet sleeve, or palm of the hand. When deployed, it transforms into a functional, controlled-use covert ring cap powered cap gun — built for discretion, precision, and style.

This is not about brute force.
This is about control, compactness, and confidence.

💡 KEY FEATURES

Ultra-Compact Folding Design
Engineered to remain flat and unobtrusive when stowed, then quickly deploy into a stable, ergonomic form.

Tactile Mechanical Feedback
Crisp movement, defined transitions.

It can shoot 3d printed pellets, or 6mm airsoft bbs
Utilizes cap-based impulse to propel lightweight projectiles in a controlled, recreational context.

🛠️ WHAT YOU'LL NEED

Two small springs, which you can easily salvage from pens. Standard ring caps are required for operation. 

This pen is carefully designed for smooth functionality. 

LIST:

- Glue (liquid better)

- 2pcs 0.5x5x25 mm Helical- Compression Spring (optional, you can use rubber band)

- 2-5pcs 1.4x20mm Basic Rubber Bands

- 5pcs BT2.6x8 SHCS Self Tapping Screw or longer

best size BT2.6x12

- 2pcs D4x2mm Round Magnet (optional)

🧪 DESIGN & ITERATION

The PALM-9 platform is the result of extensive iterative design, refinement, and testing across multiple prototype generations. Each revision focused on improving fit, alignment, durability, and overall user experience while maintaining the original ultra-compact vision.

⚠️ IMPORTANT SAFETY NOTICE

• Do not use under the age of 18
• This model is provided for educational, design, and recreational prototyping purposes only.
  The designer assumes no responsibility for misuse or unlawful application of this design.
• This device is not a toy.
  Due to its ignition-based mechanism, careless handling may result in injury.
• Never aim at people or animals
• Always wear appropriate eye protection and keep a safe distance from people, animals, and fragile objects.
• Use only in a safe, controlled environment
• Do not carry or display in public
• Local laws and regulations may classify this object as a weapon or restricted device.
  You are solely responsible for understanding and complying with all applicable laws in your jurisdiction.
• Use responsibly. Discretion is part of the design.
• Never block or seal the barrel.
  If the gas cannot escape, pressure can build up and may cause the body to crack or burst.
• Be careful which caps you use.
  Some caps are significantly stronger than others. Overpowered caps can damage the mechanism or cause failure.

Quick shoutout and thank you:
I also want to say thanks to it_could_explode for the help and solid advice along the way. A lot of the feedback really helped me think through some design problems differently.

Definitely check out his profile - https://makerworld.com/en/@itCouldExplode/upload

📹 Assembly Guide Available
Want to see how it works and how to put it together?
👉 Full video on YouTube:

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