Inventor General Discussion

Inventor General Discussion

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Distinguished Contributor
Mark.Downes
Posts: 116
Registered: ‎11-18-2010
Message 1 of 15 (485 Views)
Accepted Solution

Assembly Rectangular Pattern

485 Views, 14 Replies
09-10-2012 02:38 AM

 Hi, can anyone help with a work around for rectangular patterns in assemblies?

 

I want to pattern a screw using an existing Part Feature Pattern; I have figured out depending on how the part is assembled you get two outcomes and if the part is mated opposite side to how the feature was patterned you get the parts going the wrong way (see attached pic).

 

Is there a “flip direction” option anywhere or do you just have to be super diligent on how the seed feature orientation is in relation to the assembled pattern?

 

Thanks

Mark

Member
tehcr
Posts: 3
Registered: ‎03-13-2008
Message 2 of 15 (471 Views)

Re: Assembly Rectangular Pattern

09-10-2012 03:12 AM in reply to: Mark.Downes

correct me if im wrong. but would it not be better to use place all the screws and then use constraints - insert?

 

regarding your question the only way to reverse the pattern would be to use either rectangular or circular.

Distinguished Contributor
Mark.Downes
Posts: 116
Registered: ‎11-18-2010
Message 3 of 15 (465 Views)

Re: Assembly Rectangular Pattern

09-10-2012 03:24 AM in reply to: tehcr

Hi Tehcr,

 

Yes thats one way to do it, but I was asking about rectangular patterning. If you use feature paterns they are associated and thus "more intelegent" - ahem!

 

I dont fancy droping 20 or 30 parts into the assembly and using "insert" when i can place one part and use an existing feature array to pattern. Just my way of wanting to work I guess.

 

thanks

 

Mark

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sbixler
Posts: 1,885
Registered: ‎09-15-2003
Message 4 of 15 (444 Views)

Re: Assembly Rectangular Pattern

09-10-2012 04:29 AM in reply to: Mark.Downes

It works just as you want it to, but you have to insert the screw into the "origin" feature of the part pattern.  In the image you posted, constrain your first screw into the opposite corner hole of the part, and the screw pattern will be as you want.  In other words, the first element of your component pattern needs to correspond with the first element of the part pattern, to get the result you're looking for.

Distinguished Contributor
Mark.Downes
Posts: 116
Registered: ‎11-18-2010
Message 5 of 15 (441 Views)

Re: Assembly Rectangular Pattern

09-10-2012 04:37 AM in reply to: sbixler

Hi Sbixler,

 

Worked like a charm, many thanks :smileyvery-happy:

Simple solution, sometimes you cant see the wood for the trees - Doh!

 

thanks

Mark

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jletcher
Posts: 1,946
Registered: ‎05-18-2011
Message 6 of 15 (428 Views)

Re: Assembly Rectangular Pattern

09-10-2012 05:10 AM in reply to: Mark.Downes

Whenever I make a pattern I take the hole and change the color so when I go to the assembly I know what hole was the starter hole for the pattern..:smileyhappy:


Please mark this response as "Accept as Solution" if it answers your question.

James Letcher
2012 Factory Design Suite ( will not load 2013)
What happen to my Inventor :-(
Employee
csaba.stupak
Posts: 48
Registered: ‎12-08-2006
Message 7 of 15 (405 Views)

Re: Assembly Rectangular Pattern

09-10-2012 07:47 AM in reply to: Mark.Downes

Exactly, the Feature Pattern option of the Pattern Component dialog only specifies the relative position of the patterned instances. So even if you do not place the screw at any hole of the part holes they will be patterned. When you invoke the Pattern Component command and try to select the Feature Pattern note that it is not possible to select the "first" part hole. So you do not need to color/mark specially the "first" hole when you insert the first screw, just invoke the Pattern Component command determine which hole is the first, cancel it, constraint the screw at first hole and invoke again the Pattern Component command to finish the patterning.

 

Regards,

Csaba

Distinguished Contributor
Mark.Downes
Posts: 116
Registered: ‎11-18-2010
Message 8 of 15 (393 Views)

Re: Assembly Rectangular Pattern

09-10-2012 08:18 AM in reply to: csaba.stupak

Hi Csaba,

 

I have just tried you solution in a new assembly,

 

1. drag parts close,

2. pattern first to see orientation,

3. cancel op,

4. mate part in the appropriate hole needed

5. pattern,

 

Thanks for the information as it works suprisingly quick this way :smileyvery-happy:

 

Mark

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jletcher
Posts: 1,946
Registered: ‎05-18-2011
Message 9 of 15 (388 Views)

Re: Assembly Rectangular Pattern

09-10-2012 08:37 AM in reply to: csaba.stupak

csaba Wrote:

 

  So you do not need to color/mark specially the "first" hole the first screw, just invoke the Pattern Component command determine which hole is the first, cancel it,

 

----------------------------------------------------------------------------------------------------

 

So doing it your way takes more steps? why would you want to make more steps? Is this Autodesk new thing the more click the better the software runs? Also no one said color the screw....

 

 The reason for the color hole also is so you don't have to cancel anything and if you did not make the part the next person knows the first hole.


Please mark this response as "Accept as Solution" if it answers your question.

James Letcher
2012 Factory Design Suite ( will not load 2013)
What happen to my Inventor :-(
Employee
csaba.stupak
Posts: 48
Registered: ‎12-08-2006
Message 10 of 15 (373 Views)

Re: Assembly Rectangular Pattern

09-10-2012 09:26 AM in reply to: jletcher

I just suggested a workflow where I tried to avoid the part hole coloring. In some cases you do not need to insert any screw into the patterned hole. In both cases we have extra steps either we color the hole or do the canceled Component Pattern command. Of course if you know in advance that the hole will be used in the assembly then the coloring approach is a great idea.

 

Thanks,

Csaba

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