GEARBLOCS SOLID SHAFT in LENGTHS FROM 20MM TO 300MM - SFT-D8-L-SLD-x57

DOWNLOAD I.D. : SFT-D8-L-SLD-x57 (57 files included in this download)

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

GEARBLOCS Solid D-Shaped Shaft – 8mm Diameter (STL File)
Precision Component for Advanced STEM Builds

Upgrade your GEARBLOCS creations with this 3D printable Solid D-Shaped Shaft, engineered for strength, alignment, and precision motion. Designed to be compatible with the GEARBLOCS STEM building system, this shaft features an 8mm diameter with a D-flat profile for secure and slip-free coupling with gears, pulleys, and rotating components.

🧩 Perfect for Advanced STEM Projects
Whether you're building mechanical toys, robotics, or custom RC-controlled systems, this shaft ensures reliable performance. The D-shaped design is ideal for transmitting torque without slippage – perfect for rotating assemblies within the GEARBLOCS ecosystem.

⚙️ Customizable Lengths
This STL file pack includes shaft lengths ranging from 20mm to 300mm, in 5mm increments, so you can print exactly what your project demands – no cutting or resizing needed. 

🛠️ Optimized for 3D Printing

• Designed for FDM/FFF printers
• No supports required
• Printable in PLA, PETG, or stronger engineering filaments
• Includes 57 individual shaft STLs (20mm–300mm)
• High-precision tolerances to fit with other GEARBLOCS components

🔧 Built for GEARBLOCS Compatibility
GEARBLOCS is a cutting-edge STEM building system inspired by LEGO® Technic-style play, but enhanced with features like ball bearings for smooth motion and optional RC control integration. These shafts are the backbone of motion transmission in the system, enabling you to build gearboxes, drive trains, and articulated machines.

Digital Download – STL Files Only
This is a digital product. No physical items will be shipped. Files are delivered in .ZIP format immediately after purchase.

Start Building Smarter.
Download the GEARBLOCS Solid D-Shaft set and take your STEM and robotics creations to the next level.