In this document, I show how I
a) Draw an isometric drawing of a phone holder. Label the parts and use the references in a Material List.
b) Use an overlay over the isometric drawing drawn in (a) to draw an assembly (exploded) drawing. I roughly marked the key points on the overlay and then rule them over to finish.
c) Draw a First Angle Orthographic Projection of the Phone Holder.
Note: It is actually easier to complete the First Angle Orthographic Projection first. You can then use the dimensions to draw on an isometric surface for the top profile. Use of the grid method is another convenient alternative. In this example I drew the isometric drawing first.