

They do not actually control the shape of the 3D part. Reference objects are only guides and aides for your s ketch. Specifically, we will use several REFERENCE RECTANGLES and a single REFERENCE LINE.

And, the reason we can do that so quickly and so precisely is that we already know our design's measurement constraints and we can guide our design using these constraint with reference objects. But, in around 11 minutes we will be able to finish the basic design of the cap. We won't get as far in the design as adding the loops for the chain in this tutorial. The candles will be used to line a driveway and, ultimately, they will be joined by links of white plastic chain. It's a cap that holds a Christmas light and that cap fits onto a piece of white PVC pipe that, hopefully, will end up simulating a candle. The object that we will be demonstrating will be used in an outdoor Christmas display. We plan to print at least 100 pieces of the design and that design must fit firmly onto the end of a PVC pipe. In this tutorial we cover making just that. It's also imperative if that design must interface with a real world object. This is especially true if you plan on printing that design on a 3D printer, like the Cube.
