skyking01x
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Everything posted by skyking01x
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What is the easiest way to find the point in 3d space that a line, spline, or curve intersects a given plane?
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Has anyone experienced any serious bugs or problems with X3? java script:void(0)
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That's a good idea, too. Thank you all for your help and interest.
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That's a good idea! Mastercam does allow one to create a tangent line from any curve(not only an arc) to a point in space. If you choose that point to be on or near the second curve you have a close approximation. Like you say iterate reversing the process 2 or 3 times and it becomes very accurate. I don't understand why Mastercam didn't take that function and carry it further to include other curves instead of only points. Thanks for your insight. skyking
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Piglet, I want straight lines to be tangent to splines not arcs. skyking01x
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I wanted to mill around four elliptically shaped bosses. I wanted to connect the bosses with straight lines and create the mill path around the outside of the bosses. I couldn't make X3 construct tangent, straight lines to all the ellipses. If they were circles, no problem. I can draw a tangent from an ellipse to a point but not to another ellipse. The math solution to this is a differential equation. Why does everyone make this more complicated than it has to be? Oh, I forgot, that is what we engineers do!
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Right, I can't see how to do it graphically after a lot of "fooling around". I know one could do it mathematically but that's not what I had in mind. I don't want to get into the solution of a differential equation to draw a simple part!
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OK, this getting too complicated. How does one draw a straight line tangent to two ellipses?
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Isn't your line perpendicular to the two splines? What am I not understanding? In MCX3 when I draw a line tangent to one circle then bring the cursor close to another circle, it snaps the tangent line to both circles, quickly creating the line. If you try it with an ellipse or other curve (but not an arc) it won't work. I'm thinking I don't have some setting set properly but I sure don't know which one.
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Tangents to two arcs are no problem for me. However, I cannot figure out how to draw a tangent to a circle and to a spline curve or a tangent to two ellipses, etc. Any one have a tip for drawing a tangent to two curves that are not arcs? I have looked thru all the X3 help files and can't find anything but the elementary answers about tangents to two arcs.