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- Generally, the rhino file prepared for milling must contain the following layers:
- Stock: a box, at the world origin, representing the size of the block of your milling material.
- Topography: a single NURBS surface for smooth terrain, or a series of flat surfaces for stepped terrain.
- Features: layer(s) with NURBS surfaces for roads, water, etc.
- For each features layer, there should be another layer with boundary curves for each feature surface.
- Buildings: If buildings are to be milled with the base, include a layer with NURBS surfaces at the tops of buildings.
- A layer with boundary curves for each building top surface.
- Buildings too large or too small to be milled with the topography need pockets. Include a layer with curves outlining the bases of these buildings (at the z depth you want the bottom of the pocket cut).
- Final contour: a layer with a curve tracing the four outside edges of the topography layer, and the same curve projected to z=0.
- This file can be imported directly into Mastercam.
File preparation: Mastercam
- See the CNC tutorial for more detail. In general, you will need to use a template MasterCAM file, import your geometry, assign it to pre-defined toolpaths and adjust the toolpath parameters for your material.
- Files must be submitted to CNC TAs for review and approval.
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