Toolpaths and Machining: 3D Rotary Machining

Brad Castle

16 April 2025 12:23

Carveco Tutorial: Creating 3D Reliefs on a Rotary

In this tutorial, we demonstrate how to create 3D reliefs on a rotary axis using Carveco Maker. You'll learn how to set up a rotary model, import reliefs, add textures, and generate rotary toolpaths for machining.

🔹 Setting Up a Rotary Model

Go to File > New > Rotary Model.
Define your stock diameter (e.g., 3 inches) and length (e.g., 6 inches).
Select the rotary axis orientation (X or Y) based on your machine setup.
Set an appropriate resolution to preserve relief detail.
Click OK to create the model, then use Toggle Rotary/Flat to view the unwrapped layout.

🔹 Importing and Pasting Reliefs

Import reliefs from the Clipart Library or as an STL file.
Use Mirror and Transform tools to position and size the reliefs as needed.
Set the height of the relief (e.g., 0.25") before pasting.
Paste the relief onto the model and use Wrap View to visualize the cylindrical shape.

🔹 Adding 3D Texture

Add background detail with textures such as waves.
Scale and position the texture to cover the rotary model.
Use Merge High combine mode for blending with existing reliefs.

🔹 Creating Rotary Toolpaths

Under Toolpaths, choose Machine Relief for rotary machining.
If your relief exceeds your original stock size, Carveco will shrink the model to fit the material setup.
Set material Z and model position to Top, and half your diameter (e.g., 1.5") as material thickness.
Select a finishing tool (e.g., 1/16" ball nose) and calculate the toolpath.
Optionally add a roughing tool (e.g., 3/8" end mill) for faster machining.

🔹 Simulating the Toolpaths

Use the Simulation Control Bar or Fast Simulation to preview your rotary machining.
Watch for shrinkage in the relief and validate tool engagement.
Adjust angle settings (e.g., 45° or 90°) if needed for alternate carving directions.

🔹 Final Steps

When satisfied with your simulation, save the toolpaths.
Choose your rotary post-processor based on your CNC machine.

✔️ Key Takeaways

Create rotary models by defining cylinder dimensions and axis orientation.
Import, position, and blend reliefs and textures on the unwrapped rotary view.
Use Machine Relief toolpaths with roughing and finishing tools for rotary carving.
Let Carveco handle scaling if your relief exceeds stock size.