Everything is located within SketchList 3D by the point of origin for the project and the lines that extend from that point.
The point of origin of the project is the leftmost, bottom most, front most corner. Everything in a SketchList 3D project is located with reference to that corner.
The three lines (planes) extending from the point of origin create the left, bottom, and front edges.
The point of origin of the assembly is the leftmost, bottom most, front most corner. Assemblies in a sketch list project are located with reference to distances from the point of origin of a given assembly and the point of origin of the project.
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To put an object a distance - say six inches from the left edge of the assembly, we say that object's left value = 6.
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To put an object a distance - say ten inches from the bottom edge of the assembly, we say that object's bottom value = 10.
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To put an object a distance - say 1 inch from the bottom edge of the assembly, we say that object's bottom value = 1.
All newly inserted objects are located at the point of origin.
It's really much simpler than that sounds. Perhaps it would be easier to watch the video.
