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GEARBLOCS CAP PLATE 120mmX10mm in LENGTHS FROM 120MM TO 300MM - CP-R-V-W120-H10-L120-300-BR12MM-x10

GEARBLOCS CAP PLATE 120mmX10mm in LENGTHS FROM 120MM TO 300MM - CP-R-V-W120-H10-L120-300-BR12MM-x10

Regular price $5.00 USD
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DOWNLOAD I.D. : CP-R-V-W120-H10-L120-300-BR12MM-x10

For new users of the GEARBLOCS system, we recommend you review the following two articles.

FUNCTIONAL PRECISION 3D PRINTING

INTRODUCTION TO GEARBLOCS 3D PRINTABLE STEM BUILDING SYSTEM

This download is for the GEARBLOCS CAP PLATE 120mm wide x 10mm high beam files in lengths between 120mm and 300mm long.  (Ten models in a zip file with this purchase)

GEARBLOCS CAP PLATE – 3D Printable Modular Building Beam for STEM Projects (STL File Download)

Unlock Your Creativity with the GEARBLOCS Standard Beam – 3D Print Your Own Engineering System

The GEARBLOCS Beams form the core of the GEARBLOCS STEM Building System, an innovative, hands-on construction platform for adults and kids. Designed for DIY enthusiasts, educators, engineers, and hobbyists, GEARBLOCS empowers you to 3D print your own modular building system at home.

This listing includes STL files for the 120mm wide by 10mm high CAP PLATE, which is 120mm x 10mm in cross-section and available in lengths ranging from 120mm to 300mm, in 20mm increments. Many other sizes of this style of beam are available in other listings on this site.  Simply choose the size that fits your project, print it, and start building.

Key Features:

  • 📐 Versatile CAP PLATE Sizes: Lengths from 120mm to 300mm, adjustable in 20mm steps for ultimate customization.
  • 🔩 Single-Axis Connectivity: Precision-designed holes in the vertical axes allow for secure assembly using 3D printed pins.
  • 🔧 Functional Engineering System: Perfect for constructing cars, tanks, cranes, loaders, tractors, and more — fully compatible with DC motors and RC components.
  • 🖨️ Printable at Home: No shipping delays — download the STL file and start printing instantly on your own 3D printer.
  • 👨👩👧👦 STEM-Friendly & Educational: A hands-on way to learn about mechanical engineering, robotics, and structural design.

Whether you're building your next RC crawler or teaching mechanical motion in a classroom, the GEARBLOCS CAP PLATES offer the strength, compatibility, and flexibility you need to bring your functional mechanical ideas to life. 


Compatible with the full GEARBLOCS ecosystem, this beam is part of your building foundation — optimized for integration, designed for function, and engineered for learning.

Download your STL file now and start building smarter with GEARBLOCS.

See our other listings for various other components that are part of the GEARBLOCS family of 3D printable STEM building components.

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