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users4

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Hi,


I made an assembly in Pro/E. My model is symmetrical. So I modeled just one half and then mirrored the other half. But on looking at the final assembled model, I find that the part that I actually created does not fit properly into the main model, but on the other hand, the mirrored part is fine. Also, my model has a thickness of 0.1 mm. Is this the cause for the asymmetrical fitting?


There is a gap between the lowest portion of my leaflet model (the file is leafletsurface.prt) and the inner bevel feature of the frame (model-temp.prt). But this doesn't exist on the other half......... or rather, it looks like that.


Can someone tell me if it's an assembly problem or something else, and how it can be fixed?


I have attached my files with this message.


Thanks, in advance.


VR2006-05-20_235043_Model.zip
 
hi users4,


your model_temp.part is not right, check Cut ID 1381 and Cut ID 1477, the sketch had something'swrong.


It will be fit.


Best regard
 
Hi Foolmankh,


Can you please tell me whats wrong with cuts 1477 and 1381? The original part was created that way. So what should I change and how?


Regards,


VR
 
Hi Foolmankh,


I still do not understand why I should change the dimensions that you specified. And how can I do it? On what basis did you choose 0.5? Kindly explain.


Regards,


VR
 
Hi Foolmankh,


I made the changes, that you suggested, but still there was no difference. The gap still exists. Any suggestions on this? I tried making both to 0.5 and also both to 0.66. No change with either.


Regards,


VR
 
Thanks a lot foolmankh............ I got the assembly part fixed. I alsotried another method. Created a point somewhere close to the midpoint of the inner bevel on the frame. Then made a plane that passes through that point and parallel to the front plane. Then aligned this plane with the corresponding plane(plane26) from the leaflet.


But still, there exists a gap 9void space) between the 3 surfaces that make up the leaflet. Any suggestions on how to fix that? I tried the FILL option, but without success.


Regards,


Vidya
 
hi users4!!!


I understood ur problem, you should merge 3 surfaces before use thickness


command. Later, use mirror geom command.


Andthickness'sunder 0.42.It's OK.


I modified it, let check 2006-05-24_041040_Model.rarit out!!


Hope it helpfuls.


Best regards
 
Hi Foolmankh,


I got what you were trying to do, but even in the model that you just sent, I still find the gap between the middle surface of the leaflet and those at the sides. I guess it's this gap that's causing things to go out of hand. I want to fix this up first. Can you offer any suggestions?


Thanks a ton.


Vidya
 
Hi foolmankh,


Is there any way by which I can make my assembled model contain just 3 volumes i.e. the frame, and the 2 leaflets? For this, I have to merge the 3 surfaces (on each of the leaflets) into one, but simply using the merge commnd is not doing this for me. Do you know how to use the COPY command? Also, the thickness of 0.1 mm has to be incorporated.


My CFD software tells me that there are errors in the geometry that I need to fix and so I have to make all corrections in Pro/E itself.


Any suggestions to combine the leaflet surfaces into one?
 
Hi users4,


christo_t's right, you can use skeleton method for assembling.It's good method for complicated product and have many parts.
smiley20.gif



I use Analysis/Model Analysis/Pairs Clearance for gapchecking and the result's "clearance=0.000000". So which gap was it? Can you show me by pictures!?
smiley19.gif



This is guide for Copy command and Top_Down Design.


Let check it out2006-05-24_213541_Model.zip


Hope it useful
smiley1.gif



Best regards
 
Hi Foolmankh,


Thanks a lot for all the help. I do not have Pro/E right now at home so I can't send you the picture. The gaps that I'm talking about is at the intersection of the middle surface of the leaflet and the surfaces at the sides. So there are two gaps. If yoy zoom in close enough, you can see them.


I tried to merge those 3 surfaces, but no luck. The gaps still exist. Any suggestions for this one?


Thanks a lot for the articles that you sent. I'll go thru them and see if something helps.


Regards,


VR
 
Hi Foolmankh and Christo,


I folllowed the article on the COPY surfaces command, but could not understand the Top Down Assembly approach. I can't understand how to apply it to my model either. Can you explain few more details about it?


Thanks


VR
 
Hi users4,


Itried to find gap between middle surf. and side (zoom max.). But i can't saw any gaps!!!!????
smiley19.gif
maybe, you should upload pics and we'll solve that.


As i knew, Top-Down Design means that you can design 1'st part and depend on it, you'll design next parts (Skeleton Model)


In your modelling, at first youdesign model_temp part and next you depend on it to design leaflet part. and you can also use mirror in ass'y.


Hope it helpful


Best regards
 
Hi Foolmankh,


Here is the picture of the gap that i was talking baout. I too did the Analysis- Model Analysis- Pairs clearance and got the result as 0.0000, but still when I zoom in , I see this gap and I'm wondering why it occurs. Is it really a gap or something that I don't understand properly?


Could you please look into it and tell me what it is? Attached is the picture. I also have another query...... how do you make a .rar file?


Thanks,


VR2006-05-25_093335_Clearance.zip
 
Hi,


your Model_Temp is not modeled correctly. if you see feature Cut is 1381 and Cut id 1477 should be equal and opposite, you should have mirrored the feature Cut id 1381 instead of Cut 1477


Similarly Cut id 1570 1599 should be equal and opposite her also you should have mirrored the cut 1570


i think there is not problem with leafletsurfaces part. if you correct this you can solve the problem, if you are goinbg for top down approch ,that will be best, but now you cannot adopt that for this model ,b'coz u have laready created both files.


try to correct Model_temp.prt.


I am also trying to edit the same here, since i am too busy and i am not able to spare much time on this. some of the featuers are having weak dimension , please try to avoid that, follow the best modeling practise. weak dimns with create trouble afterwards.


Good Luck


christo thomas


Florida
 
Yeah Christo......... the model_prt model is not perfectly symmetric, though it looks so at first sight. And that's probably my assembly is not working right. I'll now try to fix that issue first. Thanks for your comments.


Again, what does a weak dimension mean? The model_temp part was not created by me, I only made the leaflet. So I guess I'll have to work on the other person's model to get my leaflet fixed properly. This is my first few weeks with Pro/E and so I'm having a lot of issuestrying to learnit.


Thanks,


VR
 
Hi Foolmankh,


The gap that I was talking about still exists......... though I too used the Model Analysis tool and the result was 0.0000 for pair clearance. I'm wondering then how I'm able to see the gap whenI zoom in. Is this a problem with the model or something else?


Thanks,


VR
 
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