![]() ![]() In fact, if you wanted to create something up here, like a regular coordinate system that you weren't using before, I could say hey, I'd like to just make some basic drawing like starting over here, I could say, I like to have a line going this direction and a line going that direction and just exit out of the sketch. And you can do the same thing multiple times, we can create coordinate systems all over our part. When you're done with that, you can also choose the y or the z-axis to define it a little further but if you've got what you're looking for here, you get the x go in the direction you want, the y's going the right direction, as well as the Z, you are all set, click OK and now you've got a new coordinate system. And now you can see I've got these other axes lined up exactly how I'm looking for them. ![]() I want my x-axis to go along this edge right here. Now the point I want to use is this little point right here. So what I'd like to do is come up here under features, come over here to reference geometry, and come down to coordinate system. So if we add a new one, we can modify how that's all being calculated by using that new coordinate system. It's using the center of mass over here, and it's using all these values, this center mass from that default coordinate system, right? We only have that default system, because we haven't added any more and same thing down here as far as the moments of inertia and all this other data down here is all using that default coordinate system. So I want to point out here, if I go up to evaluate, I can come over here to mass properties. It's also helpful if you ever get into CNC machining, you can define where that work offset's going to be by establishing a new coordinate system. This is especially useful if you're trying to figure out like a moment of inertia of the part or you want to weigh it or find the center of mass and you want to use that default coordinate system to define where that is. So sometimes you might want to actually create your own coordinate system where you'd like. Now notice that origin happens to be just randomly in the middle of my part. Notice down here is a triad, and we have an X, a Y and a Z direction and over here is our origin. Each SolidWorks part has a origin as well as a default coordinate system. ![]()
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