Pencil milling operations automatically detect corners less than or equal to the specified radius (including sharp corners) and then creates a single toolpath to clean out these corners. Applications of pencil milling include:
Finishing fillets in a part with a single toolpath
Cleaning up sharp concave corners
Pre-relieving corners before high-speed finishing the part with a small tool
Roughing fillets by using the finish allowance.
The first step is to determine the regions that contain the corners as shown on the left. Depending on the number of surfaces in the model, this step may take a little time. After the regions are detected, a single toolpath is created that will clean out the corners regardless of the number of surfaces contained in the region.
