>>4463848You can draw it by looking at and measuring the 2D shapes of the image, in which case, a good, careful artist can easily get something that looks 1:1 like the image. If you are inexperienced it will look really flat and awkward. Also, you won't learn much and won't have a good idea of the object you are really representing.
If you draw it by constructing lots of rectangluar prisms in a perfect perspective grid, you will probably fuck up the proportions horribly and come up with something that has been stretched or squished in various ways, but you will learn much about the object and how perspective works. You will have a much better model of the object in your mind to draw from later.
Personally, I'd use a freehand perspective grid to just give me a feeling of depth and width, sketch out a few basic boxes for a few basic shapes, then fit what I see into the boxes, sort of oscillating between copying the 2D shapes and considering what the object is doing in perspective. The more practice you have doing rigid perspective, the easier this will be.
