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Modeling Acoustic foam

hollymolly

New member
Hi there im looking for some help from anyone who is willing. I am trying to make acoustic foam on pro engineer wildfire 3.0 student edition. See the link for the type of foam I mean:

http://shop.froogleweb.com/images/1616/products/FOAM 028.j pg

I cant seem to find a way to make this in pro e? Certainly not an easy way anyway.

If anyone has any ideas that would be a great help as I have spent and wasted alot of hours on this now!

Thanks
 
m-d-e , cool example.


otherwise you can use "surface edit" in isdx to create this shape...


//Tobias
 
Yup that looks exactly what I'm looking for could you do a step by step on how to do that? Iv never used trajpar or VSS infact I dont know what either is. Looks exactly ehat im after though.

Thanks again
 
thanks but for whatever reason, i cant open the file it just says it cant be retrieved when i try to open it. I seem to have this problem alot when opening files ppl send me, i think its because its a student edition i am using.
 
Yep, student edition cannot open commercial files. It'll probably save you some headache if you mention the version up front, in fact that's good advice for everyone.

You could edit your signature and place your Pro|E version in the signature. You'll find the signature editing under settings at the top of every page, then click the profile button at the top.
 
hollymolly said:
Hi there im looking for some help from anyone who is willing. I am trying to make acoustic foam on pro engineer wildfire 3.0 student edition. See the link for the type of foam I mean:

http://shop.froogleweb.com/images/1616/products/FOAM 028.j pg

I cant seem to find a way to make this in pro e? Certainly not an easy way anyway.

If anyone has any ideas that would be a great help as I have spent and wasted alot of hours on this now!

Thanks

Thanks for your help but I did mention that it was student edition in the origional post regarding my problem.

Thanks
 
Okay, here's how you do it.

First sketch a line to use as a trajectory for the VSS. Just a straight line with the same length as a complete sinus curve. (30 mm in the above example)

Insert Variable Section Sweep (VSS)

Choose the trajectory you just created.

Press Sketch and sketch a sinus curve. Change the height dimension (20 mm in the above example) of the curve to

height*cos(trajpar*360)

... and you're done. Group the sketch and VSS and pattern.
 
It works better if you define the sketch to be a single full wave instead of a 1.5 waves. I reduced the amplitude to 10 as well. Nice technique though.
 
At hollymolly's request, here's a more noob-friendly guide. ;)

Sketch a line (30 mm)

Insert Variable Section Sweep (VSS).

Choose the previously sketched line as your trajectory. (It turns red and thick)

Press the sketch icon in the VSS tool


Sketch the below. Thanks drgallup. It does look better.


Add the relation to the amplitude:


Hope this helps.

/m-d-e
 
Thats great thanks, as for the construction line, how do you indert them? All I can see is to insert centre lines, are these the same? Also what is the dimension of 5 for?
 
hollymolly said:
Thats great thanks, as for the construction line, how do you indert them? All I can see is to insert centre lines, are these the same? Also what is the dimension of 5 for?
The 5 dimension could be 1 or 10 or anything really. The construction line's purpose is to allow the creation of a Tangency constraint between itself and the Spline.
 
hollymolly said:
Thanks for your help but I did mention that it was student edition in the origional post regarding my problem.

Thanks

So you did! Funny, I even read over it three times just now before I saw it.
smiley5.gif
My apologies.

Neat technique, this was something I would have really struggled with. I need to learn how to utilize trajpar.
 
My god! after many hours of trying i still couldnt get it to work properly, still learning though. Anyway thanks k dem for sending that student edition, it opened perfect! Thanks m-d-e for your individual time and patience it was much appreciated. Lastly thanks to everyone else for their input also, great forum and great people.

Thanks again
 
One last thinkg actually, how can I edit the 10 value? say i wanted the rise height to be 20? When i double click to edit it, i get it saying at the bottom that its relation driven.

Thanks in advance
 
Edit the VSS (Right Click > Edit Definition) and go into sketcher. Click TOOLS -> RELATIONS and you'll see one line with something like:

sd3=10*cos(trajpar*360)

Note how, when you opened up the RELATIONS window, all your dimensions changed from a numerical value to a symbolic value (such as sd3). These symbolic values are the names of the dimensions - so when they're all in the field mucking about and you need to call one of them out - you just shout out: "SD3"! And hopefully, it listens. (ProE automatically creates the names.)

Try it out. Sketch two lines, dimension them to say 100 and 43. Then go TOOLS > RELATIONS. Look at the name(s) of your dimensions.
Say the 100 dimension is sd1,
and the 43 dimension is sd2 (they could be anything).

Type a line in the relations window to make the length of the 43 line (sd2) to be half of whatever sd1 is (100 in this case):

sd2=sd1/2

You'll notice that whenever you change the value of sd1, the value of sd2 will update to be half its value. You cannot edit sd2 directly, as it is controlled by the relation.
 
You can access all relations without going into Edit Definition. Just pick Tool/Relations and change the drop down selection to Section. Then pick the section and you will see the relation. An easier way to get to it is to create a parameter like HEIGHT and then change the relation to:

sd3=HEIGHT*cos(trajpar*360)
 

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