Charles, it seems that the system does not "just" extrude, but that it offers a bunch of methods to modify as an extrusion is being done. Cones, twists, and tapers seem to be what can be added to the third axis.
What will be made with it?Probably not gears and bearings and other precision stuff. But there are a whole lot of designs that keep most of the details in a single pair of axis and just thickness in that third axis, Probably 5% and quite possibly 10% of designs can be adequately expressed in 2 dimensions and a measurement of thickness for the third. Consider some of our more common machines, such as the classic Bridgeport Mill, which is prinmarily a two-axis system plus thickness. Then consider what all it can produce.
O the other hand, it is quite clear that the media is not given to presise extrusion, so it may be that this is more of a fun type of product. After all, we need fun products and machines as well.
Based on the description, the software takes the 2D drawing and extrudes it through scaling and rotating. So this tool would only be useful for the simplest 3D shapes. Unless the description is not doing the concept justice, you won't be doing any cuts through or extrusions from the original 2D design. Can't imagine much of a market for this, but it's an interesting idea.
Great idea, but I don't understand how it can make a 3D object out of a simple plan view drawing. Doesn't it need a plan view and a couple of elevation drawings to get the full sense of what the 3D object is supposed to look like?
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