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insert constraint applied simultaneously on multiple screws?

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Message 1 of 9
nac69
1102 Views, 8 Replies

insert constraint applied simultaneously on multiple screws?

Hi All,

 

I want to join two plates with 6 screws so I used the insert constraint to insert the screws on the first plate so that the next step would be inserting the 'left-over' screw from this plate+screw assembly  into the second plate's holes and therefore joining both plates but I am not sure how to go about this properly. The only way I can think on doing this is by alligning the holes of both plates and then using the insert constraint but this does not feel right because inventor will only know that I inserted 1 screw not the other 5. I tried doing one screw into the second plate with the insert constraint, and then repeat with the next screws but an error appeared. Is there a way to apply the insert constraint simultaneously on multiple screws so that Inventor knows that I want those screws to be inserted? 

 

Attached are the two plates that I want to join: the top plate connected to a shaft has the 6 screws inserted using the insert constraint, the bottom plate is the what I want to join it with. All the threads are the appropriate ones.plates.PNG

 

thanks!

8 REPLIES 8
Message 2 of 9
admaiora
in reply to: nac69

You can't use constraint in a multy way.

 

You can use the insert constraint, then repeat the command for other parts.

 

If you have an error, probably the software can't do what you want due a geometric error (no axial holes..).

 

You can use multiple constraint using iMate, but it's not necessary in your case.

 

Can you attach the 2 parts?

Admaiora
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Message 3 of 9
nac69
in reply to: admaiora

Ok here are parts in a zip file: Both plates and the screw I'm using. The plate with the shaft has the holes going through all the material but in the second big plate the holes only go into the plate about 3 cm, not through all.

 

So how would I go about this?

 

Thanks for your help!

Message 4 of 9
admaiora
in reply to: nac69

Sketch 4 of "Bearing Head" is no fully constraint. As you can see the circle is free to move, in fact it is not in the right position, almost but not the right.

 

Sketch has to be (normally) fully constrained to have a solid 3d design.

 

The same for sketch 3 of "Prop shaft".

 

The dimensions are not congruent between them too.

 

Here a video to how fix that

 

 

 

You have to fix the external holes pattern, because clearly may they have  a problem.

 

 

 

 

 

 

Admaiora
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Message 5 of 9
nac69
in reply to: admaiora

That makes complete sense, thanks a lot and kudos for the video reply, that cleared out everything!
Message 6 of 9
admaiora
in reply to: nac69

You are welcome Nac.

 

Maybe you can be interested in this tutorials

 

 

Sketch Constraints

 

http://help.autodesk.com/view/INVNTOR/2014/ENU/?guid=GUID-5AE920BF-8706-4B94-8055-AC741F88D914

 

Modeling Parts

 

http://help.autodesk.com/view/INVNTOR/2014/ENU/?guid=GUID-018ED989-9B33-436C-842A-0AB4A4590E76

 

http://help.autodesk.com/view/INVNTOR/2014/ENU/?guid=GUID-F57ADA16-61FE-4EFD-B25C-490AEC8352F3

 

Creating Assemblies

 

http://help.autodesk.com/view/INVNTOR/2014/ENU/?guid=GUID-6D74B0F2-8959-4106-B1CC-444AA8D13DB7

 

 

Here you can find tutorial data set too:

 

For release 2014

 

http://knowledge.autodesk.com/support/inventor-products/learn-explore/caas/CloudHelp/cloudhelp/ENU/1...

 

and 2013

 

http://knowledge.autodesk.com/support/inventor-products/downloads/caas/downloads/content/download-an...

Admaiora
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Message 7 of 9
nac69
in reply to: admaiora

OK thanks. Btw a question just came up. Why did you use the insert constraint when putting the two plates together instead of using for example the mate constraint and alligning the axis of the holes?
Message 8 of 9
admaiora
in reply to: nac69

It is the same.  Insert  constraints both axis/axis and plane/plane at the same time.

Admaiora
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Message 9 of 9
jberkner
in reply to: admaiora

Once I redrew  the part with exact dimensions everthing was wonderful..   Why cant I have a tolerance factor for the alignment.   I was off by an acceptable number and I still had to have it exact..    I'm new to acad inventor and it drove me nuts for a while untill I found this thread.  Thanks

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