For my Higher Graphics I need to produce 5 preliminary drawings and 5 production drawings.

The 5 preliminary drawings (done on paper, not to scale, freehand) are:
Dimensioned Orthographic
Exploded Isometric
Rendered Isometric
Sectioned Isometric

The 5 production drawings are the same, but done in autocad.

I've done the isometric, and therefore the rendered isometric. Having a hard time doing the sectioned isometric though. It's a simple compass I'm doing, but the inside is pretty trick.

This is what I have so far:

Sectioned (not complete)

Im really stuck on how to do the spacer and the tops of the arms of the compass. Any help please?