Start with an image:
Place it on the background:
Draw the object as best as one can using the curve tool:
This can only be an approximation, since the curve tool in Carbide Create is limited to only smooth, tangent curves.
Duplicate the drawn approximation, drag it into register with the original, and reshape the curves so as to recreate the lines which the original could not:
Duplicate the shapes as necessary and then draw in geometry which will allow you to use Boolean operations to isolate the elements which you wish to use:
Then Boolean union them together to arrive at the desired shape:
Attached.
pushblock.c2d (154.7 KB)