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UGMENTALCASE  
#61 Posted : Monday, September 09, 2019 10:18:40 AM(UTC)
UGMENTALCASE

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Hi Tim,

thanks for the info, but how do you control any of this with sketches? Can you see what I'm doing? The examples are good but they are literally just wavy lines. What do we do if we want to control those lines. Every time I do it, it fails?
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UGMENTALCASE  
#62 Posted : Tuesday, September 10, 2019 12:36:27 PM(UTC)
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Originally Posted by: UGMENTALCASE Go to Quoted Post
Hi Tim,

thanks for the info, but how do you control any of this with sketches? Can you see what I'm doing? The examples are good but they are literally just wavy lines. What do we do if we want to control those lines. Every time I do it, it fails?


Hi Tim,

I've spent a considerable amount of time today going through a large amount of scenarios to try this out. Basically wiggly line = good result. Controlled/measured lines = nothing.
You can not use either of these tools when using sketches. I'm happy to use a sketch then change that to a control spline, but even that doesn't work. I've just had an instance, repeated over and over, of it telling me the somethings aren't perpendicular to the curve. Well they are, I put them perpendicular and even used the snap tool to try moving them and checking them.

SO unless I'm missing something, which was the original question, how do you use these tools properly to model something which can be modified or controlled with constraints, or some form of figures/values on line lengths?

If I'm reverse engineering pipe work, the centreline tool is great, but real world things, like me trying to take one diameter along a length down to a smaller diameter just doesn't work. Can you advise otherwise?
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Art Smith  
#63 Posted : Tuesday, September 10, 2019 2:36:43 PM(UTC)
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Originally Posted by: UGMENTALCASE Go to Quoted Post
Originally Posted by: UGMENTALCASE Go to Quoted Post
Hi Tim,

thanks for the info, but how do you control any of this with sketches? Can you see what I'm doing? The examples are good but they are literally just wavy lines. What do we do if we want to control those lines. Every time I do it, it fails?


Hi Tim,

I've spent a considerable amount of time today going through a large amount of scenarios to try this out. Basically wiggly line = good result. Controlled/measured lines = nothing.
You can not use either of these tools when using sketches. I'm happy to use a sketch then change that to a control spline, but even that doesn't work. I've just had an instance, repeated over and over, of it telling me the somethings aren't perpendicular to the curve. Well they are, I put them perpendicular and even used the snap tool to try moving them and checking them.

SO unless I'm missing something, which was the original question, how do you use these tools properly to model something which can be modified or controlled with constraints, or some form of figures/values on line lengths?

If I'm reverse engineering pipe work, the centreline tool is great, but real world things, like me trying to take one diameter along a length down to a smaller diameter just doesn't work. Can you advise otherwise?


UGMENTALCASE-

assuming you know where the starting and ending circles are in 3D space (ie: location & orientation), what else do you know and/or want with respect to constraints that relate to the surface that connects the two circles? your situation appears to have a good deal in common with an intake manifold runner project I had a couple of years ago.

Art
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UGMENTALCASE  
#64 Posted : Tuesday, September 10, 2019 2:45:23 PM(UTC)
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Hi Art, its just like the blue pipe posted a couple of posts back in this thread. Only one end has a different sized circle.

With the constraints I want to be able to extend the lengths between the circle and the bend. So I can maybe make one length longer than the other and so on
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