Inventor General Discussion

Inventor General Discussion

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*Expert Elite*
Cadmanto
Posts: 3,265
Registered: ‎12-07-2011
Message 1 of 11 (504 Views)
Accepted Solution

Bi-Directional Patterning

504 Views, 10 Replies
11-05-2012 09:17 AM

Is there a way to do both directions when doing a linear pattern?

One direction having "x" amount of instances and theother direction having a different amount?

Best Regards,
Scott McFadden
Inventor Professional 2013
(Colossians 3:23-25)

Mike,

You are certainly not going to get any arguments from me on that one!!!

I am sorry to say that the feature patterning tool will not help in this case.

I have a case where these parts in my iassembly factory for one of the iassemblies pattern one direction

"x" amount of times then increase in quantity for the other iassembly, but require to not only increase in the

same direction as the first, but go in the opposite direction as well.

What I ended up doing is in the second iassembly, changing the starting point to the beginning on the second

iassembly and it didn't screw up my first iassembly as I originally thought it might.

I have since placed an enhancement request in with Autodesk to add this functionality in the component patterening tool.  Other softwares have it, why not Inventor.

There is one possibility that may or may not be suitable for what you need.

 

1. Start the rectangular component pattern command, and pick the direction you want.

2. Set the quantity to half of the total.

3. Set your distance between components.

4. Use the second direction pick and choose the SAME direction as the first pick, but flip it.

5. Set the quantity to 2.  (This effectively doubles the quantity in step 2).

6. Set the second distance to be the first distance times the first quantity.  If you already have parameters for these values, just use those; if you don't, you will have to set some dummy value, click OK, then re-edit the pattern and use the model parameters instead (it will end up something like d3*d5).

 

The above directions apply for an even-numbered pattern.  A few tweaks will get you an odd-numbered pattern (slightly different second distance formula, and the last component suppressed).  Also, this is for centered, symmetric patterns (although you could use it for a pattern that is asymmetrical by one occurrence in either direction).

 

I have attached an assembly and a part showing two examples of this (one example for an even-numbered pattern, and one for an odd-numbered pattern).

Valued Mentor
japike
Posts: 322
Registered: ‎02-06-2004
Message 2 of 11 (501 Views)

Re: Bi-Directional Patterning

11-05-2012 09:40 AM in reply to: Cadmanto

I don't think that is possible with one pattern. You could do two patterns from the same feature.

Peace,
Jeff
Inventor 2013
*Expert Elite*
Cadmanto
Posts: 3,265
Registered: ‎12-07-2011
Message 3 of 11 (494 Views)

Re: Bi-Directional Patterning

11-05-2012 10:05 AM in reply to: japike

Yeah,  I am not seeing a way myself.  That is why I posed the question in hopes that I was

overlooking something or maybe someone has figured out a way around this.

I did try whay you suggested in reusing the original parts used in the first pattern, but when I try it, it wants to

grab all of the patterned parts from the first pattern along with it.  I am still on 2012 so maybe this functionality

is more enhanced in 2013 or different to the point where it does work as you are describing.

Right now my thinking is to just reinsert these same parts into the location where I need it.

Best Regards,
Scott McFadden
Inventor Professional 2013
(Colossians 3:23-25)

Valued Mentor
japike
Posts: 322
Registered: ‎02-06-2004
Message 4 of 11 (489 Views)

Re: Bi-Directional Patterning

11-05-2012 10:11 AM in reply to: Cadmanto

Sorry, I didn't realize you were talking about component patterns. My example was for feature patterns. 

Peace,
Jeff
Inventor 2013
*Expert Elite*
Cadmanto
Posts: 3,265
Registered: ‎12-07-2011
Message 5 of 11 (487 Views)

Re: Bi-Directional Patterning

11-05-2012 10:20 AM in reply to: japike

I'm sorry.  I should have been clearer. 

My bad!!!!  :smileyembarrassed:

Best Regards,
Scott McFadden
Inventor Professional 2013
(Colossians 3:23-25)

*Expert Elite*
mrattray
Posts: 2,501
Registered: ‎09-13-2011
Message 6 of 11 (483 Views)

Re: Bi-Directional Patterning

11-05-2012 10:39 AM in reply to: Cadmanto

Component patterns suck in Inventor. I don't know why AutoDesk neglects them so much, but it's a point of constant frustration.

Having said that, what is it that your trying to do? Could you accomplish it using the reuse feature pattern tool?

Mike (not Matt) Rattray

*Expert Elite*
Cadmanto
Posts: 3,265
Registered: ‎12-07-2011
Message 7 of 11 (473 Views)

Re: Bi-Directional Patterning

11-05-2012 11:17 AM in reply to: mrattray

Mike,

You are certainly not going to get any arguments from me on that one!!!

I am sorry to say that the feature patterning tool will not help in this case.

I have a case where these parts in my iassembly factory for one of the iassemblies pattern one direction

"x" amount of times then increase in quantity for the other iassembly, but require to not only increase in the

same direction as the first, but go in the opposite direction as well.

What I ended up doing is in the second iassembly, changing the starting point to the beginning on the second

iassembly and it didn't screw up my first iassembly as I originally thought it might.

I have since placed an enhancement request in with Autodesk to add this functionality in the component patterening tool.  Other softwares have it, why not Inventor.

Best Regards,
Scott McFadden
Inventor Professional 2013
(Colossians 3:23-25)

*Expert Elite*
cwhetten
Posts: 1,073
Registered: ‎09-03-2008
Message 8 of 11 (462 Views)

Re: Bi-Directional Patterning

11-05-2012 12:05 PM in reply to: Cadmanto

There is one possibility that may or may not be suitable for what you need.

 

1. Start the rectangular component pattern command, and pick the direction you want.

2. Set the quantity to half of the total.

3. Set your distance between components.

4. Use the second direction pick and choose the SAME direction as the first pick, but flip it.

5. Set the quantity to 2.  (This effectively doubles the quantity in step 2).

6. Set the second distance to be the first distance times the first quantity.  If you already have parameters for these values, just use those; if you don't, you will have to set some dummy value, click OK, then re-edit the pattern and use the model parameters instead (it will end up something like d3*d5).

 

The above directions apply for an even-numbered pattern.  A few tweaks will get you an odd-numbered pattern (slightly different second distance formula, and the last component suppressed).  Also, this is for centered, symmetric patterns (although you could use it for a pattern that is asymmetrical by one occurrence in either direction).

 

I have attached an assembly and a part showing two examples of this (one example for an even-numbered pattern, and one for an odd-numbered pattern).

*Expert Elite*
Cadmanto
Posts: 3,265
Registered: ‎12-07-2011
Message 9 of 11 (382 Views)

Re: Bi-Directional Patterning

11-08-2012 10:03 AM in reply to: cwhetten

Chris,

Tried this method and it worked like a charm.  Infact when it was done in fron t of my VAR they were estonished to the point they were going to publish it as a tip and trick.

Best Regards,
Scott McFadden
Inventor Professional 2013
(Colossians 3:23-25)

*Expert Elite*
cwhetten
Posts: 1,073
Registered: ‎09-03-2008
Message 10 of 11 (243 Views)

Re: Bi-Directional Patterning

10-14-2013 10:10 AM in reply to: cwhetten

I don't know if I never attached the part file, or if it just got lost somehow, but I have re-attached the assembly and part to this post (file version is 2014).

 

Cameron Whetten
Inventor 2014

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