Responsive 3D Shape Viewer & STL Exporter

Interactive 3D Shape Viewer & STL Exporter

Welcome to the 3D Shape Viewer, a powerful yet easy-to-use tool for visualizing and customizing common and complex 3D geometric shapes. This application allows you to select from a wide variety of shapes, adjust their dimensions and parameters in real-time, and export your creation as a “water-tight” STL file, ready for 3D printing or use in other CAD software.

Width (mm): mm

Height (mm): mm

Depth (mm): mm

Radius: mm

Hemisphere Height: mm

A prism based on a 5-pointed star.

Outer Radius: mm

Inner Radius (Point Depth): mm

Height: mm

Outer Radius: mm

Inner Radius: mm

Thickness: mm

Outer Radius: mm

Wall Thickness: mm

Height: mm

Girdle Diameter: mm

Overall Height: mm

Table Ratio (% of Diameter): %

Crown Height (% of Total H): %

Pavilion Depth (% of Total H): %

Number of Sides: #

Overall Size (Base): mm

Width: mm

Height: mm

Extrusion Depth: mm

Bevel Thickness: mm

Radius: mm

Height: mm

Rotation (Degrees) 🔄

Left-click drag to orbit view (locked to center). Sliders rotate the object.

Rotate X (Pitch): °

Rotate Y (Yaw): °

Rotate Z (Roll): °

STL Resolution (Segments/Detail):

Zoom Control (Camera Distance):

Shape Color (Hue):

Shape Brightness:

How to Use the Viewer

Using the tool is simple. The application is split into a control panel and a 3D viewing window.

Select a Shape: Use the left-hand menu to choose a base shape, such as a Cube, Sphere, Cylinder, or more complex shapes like a Diamond or 3D Heart.
Adjust Dimensions: Use the “Dimensions” collapsible menu to change the shape. For basic shapes, you can set the Width, Height, and Depth in millimeters. For parametric shapes (like a Ring or Pipe), specific controls for Outer Radius, Wall Thickness, etc., will appear.
Control the View: Left-click and drag in the 3D window to orbit the camera. Use the mouse scroll wheel to zoom in and out. You can also use the “View & Rotation Settings” menu to set precise rotation angles or change the shape’s color.
Export to STL: Once you are happy with your shape, click the green “Export as STL” button. A file will be generated and downloaded with a descriptive name, including the dimensions you set (e.g., cylinder-W100_H200_D100mm_R32.stl).

What is an STL file?

STL (STereoLithography) is a file format native to the stereolithography CAD software created by 3D Systems. It is widely used for 3D printing, rapid prototyping, and computer-aided manufacturing. The format represents a 3D surface geometry as a collection of triangular facets.

This tool ensures that all exported geometries are “water-tight” (meaning they have no holes and define a single, solid volume), which is a critical requirement for most 3D printing slicer software. The “Resolution” slider in the View & Rotation Settings menu directly controls how many triangular facets are used to create curved surfaces—a higher value results in a smoother finish but a larger file size.

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