Problem with CNC milling

So I recently found KIRI MOTO for CNC services, and I’ve stumbled across a problem when trying to preview the milling process.

As you can see, it only picks up on a small portion of the model instead of the whole thing. Does anyone know what I can do to fix this?

Hi @AlexBG and welcome. Is it possible this is not a manifold part? Can you share your workspace? Right-click export workspace will produce a .km file that can be used to re-create your workspace.

I would try to send the workspace, but it does not allow new users to send attachments.

i’m pretty sure that it might be non manifold, i’m just gonna see where the problem is and try to fix it.