If you cannot see your custom 3D stock model in the madCAM simulation and only the default cuboid stock is displayed, it may be because the system is still using the default block stock. You need to select your 3D mesh model in Rhino and set it as the stock model through the "Set Stock Model from Mesh" function of madCAM. Then, enable the "Use Mesh Stock" option in the simulation options and make sure the mesh is not hidden or placed in a closed layer. After completing these settings, rerun the simulation to see the machining process based on your real model. If the problem still exists, try restarting Rhino or checking the simulation resolution.
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