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Midpoints in bends on a tube

Hello all. I was wondering if anyone could explain how to get some of these points in this drawing, and hopefully help in getting a dimension.

For this part, I would create a plane on the left end of the part, followed by cylinders for each straight. Then a plane on the right side. Next, I would construct a pierce point for plane 1 and cylinder 1 which would give me midpoint 1. Then construct an intersection point between cylinder 1 and 2, and that would be midpoint 2. I would continue this for the rest of the tube until i get to the last pierce point giving me midpoint 7. I have learned that i can create a cast point on cylinder 2, and it will give me midpoint 2.2; however, I have not yet been able to figure out a way of getting any of the x.1 midpoints.

That is where my question starts: How can i get these .1 midpoints? I feel like I've tried every combination of picking two cylinders and all the different types of points, and have had no luck in getting them. I have XYZ coordinates for these points, but more importantly, i have length-of-straights dimensions that are taken as a measurement between for example 1 to 2.1. This is a crucial measurement to the fit/form/function of our part, and as of now, i have absolutely no way of checking it.

My second question is this: Almost every part we have has a dimension for mid 1 to mid 7 across the Y-axis (as shown). But they will also dimension in this case, the top of cylinder 1 to the bottom of cylinder 7 (relative to the Y-axis) across the Y-axis. Every time i try to measure Cyl 1 to Cyl 2 across the Y-axis (with plus diameter getting me the closest), I never can seem to quite get a passable measurement.

Any help in either of these matters would be greatly appreciated.
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  • Thank you so much for your help Andersl! Hopefully, I only need to ask one more question:

    Let's say i probe out a part with a few bends in it.

    I then create my two cast lines, and intersecting point

    (Here's where I'm still confused)You said to level to the first line (or plane as you have been calling it), but that is only 1/3 of the alignment. Without at least locking down my rotation, I can't accurately choose a workplane to construct my tang-circle (because the axis i level to the cast line, wont be a suitable workplane, I dont think) However If i leveled to the first cast line, select the first line/or cylinder as my XYZ origin, and then rotated any axis (except my level axis) about my level axis towards the second cast line, I believe this would give me a suitable workplane to use.

    Would that part be correct? Sorry if it isn't, I am definitely still learning a lot to building my own alignments.
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  • Thank you so much for your help Andersl! Hopefully, I only need to ask one more question:

    Let's say i probe out a part with a few bends in it.

    I then create my two cast lines, and intersecting point

    (Here's where I'm still confused)You said to level to the first line (or plane as you have been calling it), but that is only 1/3 of the alignment. Without at least locking down my rotation, I can't accurately choose a workplane to construct my tang-circle (because the axis i level to the cast line, wont be a suitable workplane, I dont think) However If i leveled to the first cast line, select the first line/or cylinder as my XYZ origin, and then rotated any axis (except my level axis) about my level axis towards the second cast line, I believe this would give me a suitable workplane to use.

    Would that part be correct? Sorry if it isn't, I am definitely still learning a lot to building my own alignments.
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