Hi Ram, yeah like Luis and Burr write above ViaCAD is probably a good choice for including 2D drawing stuff.

If you find yourself struggling with building 3D models with it and are more comfortable with constructing things in MoI you could also use both MoI and ViaCAD in combination with one another, sending the 3D model data constructed in MoI over into ViaCAD for generating drawings.

But definitely go and specifically talk to the shop about what they can handle, maybe they still receive a bunch of 2D blue prints from people but most of the time shops would actually prefer to receive 3D models instead if they're available, there is much less chance to misinterpret the design when they are looking at the 3D model.

It also depends on what particular CNC process is going to be used - some things like a laser cutter are done totally by a 2D outline only. For other processes like milling the shop would basically have to construct a 3D model from your blue prints which is why it can be better for those cases to give them the 3D model directly instead.

- Michael