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datum planes for swept blend

2

2ms1

New member
I have obtained a tutorial that tells me how to make the kind of swept blend I need from a set of sections as shown below. I would like to use this same approach of creating the sections beforehand and then inserting a blend that connects them. However, I do not know how to do the part of setting up the sections.

Could someone please tell me how to (a) set up a set of sections as seen below and/or (b) set up a set of sections as seen below only with "Section1" rotated only 10 degrees relative to the other planes rather than the 90 degrees as shown.

Help with this would be invaluable to me and the last step before finally getting this project done. I think I'd finally be out of you guys' hair for a while ;-)

Edited by: 2ms1
 
ok maybe I could have worded the question better. Basically, I was wondering how to set up sections along a trajectory for a swept blend before inserting the blend as opposed to sketching the trajectory and sections within the process of inserting the swept blend.

Could anyone tell me how to create the sections along a curve as shown below?
View attachment 2213


Edited by: 2ms1
 
To do this, you must first create the datum planes that you want the X sections to be on. Then "sketch" the drive curve aligning it to the X sections planes. Then sketch the cross sections on the proper planes.


View attachment 2214


Now to create the "Swept Blend", make sure that you pick "Select Sec", and then "Select Traj". For your trajectory, select the drive curve.


View attachment 2215


Then select the first cross section curves. Note where the "start point" is and the direction arrow.


View attachment 2216


Select Done. You will be prompted for "Next section Y/N", select yes. Now pick the second cross section. If need be, change the start point to the proper vertex. If the direction arrow points in the wrong direction, right-click the vertex, then pick it again.


View attachment 2217


Select Done. Answer Yes for the nextsection. Pick the third cross section and define the start point and the direction.


View attachment 2218


When this is completed, select Done and answer No for the next section. Select OK to finish the feature.


View attachment 2219


Here is my file if you want to look it over.


2006-05-02_205150_swept_blend.zip
 
wow. awesome. thank you very much. my last little problem is that I do not know how to set up datum planes that arent parallel to planes that already exist (as references). Imagining an x-axis that runs the width of each trapezoid/section, can you tell me how to obtain small rotations about the x-axises of each of the sections?
 
Iam from China, English no good,butmy Proe is good. I can do, but don't how toexpress exactly in English
 
Hi.


You set up datum planes exactly the same way you would explain someone in words what you realy want. Let's say:


-you want to put datum plane through 3 points- you would select those 3 points with left mouse clicks while keeping CTRL down. You could see that pro/engineer attaches term "through" next to those 3 points (take look atreference collector on picture)


View attachment 2225


-you want to put datum plane through an axes under an angle to some other plane- select axes and then select reference datum plane. Observe that this time next to the axes stands "through" and next to the reference plane stands "offset". Offset in this instance means "offset angle", not "offset distance". Notice, that you can alter meaning of some of your references (in this case reference plane). Just click at reference plane in reference collector, and then select from menu what you want- your newly created plane can be"Normal", "Parallel" or "Offset" from your reference plane.





View attachment 2226


-etc...


My English is not good, but I hope you can understand what Imean.


By.
 
thanks all of you. these have been essential and Ive got it all figured out now. Any tips on how to "see" where you are drawing when sketching on the datum planes? What I mean is that since the planes are normal to the curve, you cant actually see the curve/trajectory while you are drawing, so for example, here it is hard to make sure the top edge of each section is placed right on the curve/trajectory. Other than that I like this (Select Sec) method much more for what Im doing than the Sketch Sec way.

Edited by: 2ms1
 
Hi 2ms1,


you can creatdatum point intersect curve/trajectory and sketch plane, so when you sketching on the datum planes you can select this point do reference
 
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