Addpex - ImpulseRC Apex Arm-Bumper

🛠 Apex Arm Bumpers – No-Screw Protection for Your Motors

After creating front and rear bumpers for the Apex, there was one last weak point I wanted to reinforce: the arms and motor mounts. That’s where the Arm Bumpers come in – designed to lock your motors in place, absorb impact, and slide on effortlessly – no screws required.

🧩 Key Features
🛡 Motor lock & arm protection in one
🔧 No screws needed – simply slide onto the arm
🔄 Easy to remove – just twist gently and pull off
🧱 Crash resistant – tested in real freestyle abuse
🔄 Available in two versions – pick the one that fits your style or frame variant
⚙️ Fits the Apex 5” arms and similar geometry
🧽 Made to flex under stress and return to shape

🧬 How It Works

These bumpers friction-fit directly onto the carbon arm and wrap around the motor base. That gives you two big advantages:

Your motors stay tight, even after rough landings or vibration-heavy flights

The arm ends are protected from chipping or splitting on impact

They're designed so that a slight twist allows for quick removal – perfect for repairs or swapping motors.

🤝 Community Spirit

This is the third piece in the full Apex protection lineup – made for real-world freestyle, shared with the community, and fully printable at home.

Print one or both versions, test them out, and feel free to remix. If you come up with a better fit or idea, let me know – this project keeps evolving thanks to you all.

Grip tight. Crash harder. Keep flying. ✌️