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kmeldfreyssinet
Posts: 172
Registered: ‎05-06-2011
Message 1 of 9 (734 Views)
Accepted Solution

spiral array

734 Views, 8 Replies
01-21-2012 01:32 AM

HI,

dose anyone have an idea how to make spiral array?

 

I am to model ballscrew and would like to put ball in. To do so I would need something like spiral array but now realy do not have any good idea how to do this.

 

Cris

Make pattern of workpoints in part file.
Make pattern of components in assembly file to follow part pattern.
Attach your assembly here.

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JDMather
Posts: 28,056
Registered: ‎04-20-2006
Message 2 of 9 (729 Views)

Re: spiral array

01-21-2012 04:07 AM in reply to: kmeldfreyssinet

Spiral or Helix?
In any case - curve driven pattern.

See http://home.pct.edu/~jmather/skillsusa%20university.pdf

and attach your file(s) here.

Please mark this response as "Accept as Solution" if it answers your question.
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Mentor
kmeldfreyssinet
Posts: 172
Registered: ‎05-06-2011
Message 3 of 9 (713 Views)

Re: spiral array

01-21-2012 07:39 AM in reply to: kmeldfreyssinet

OK, it helpt a little

 

Curve driven pattern works ok in part pile. So I can make all balls in row as one part. I would like to be able to pattern individual ball in assembly along helics, or other curve.

 

I still do not have idea how to do this. I had in the meantime tried to play with iCopy but I can not get it work with helis, it returns error.

 

Cris

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JDMather
Posts: 28,056
Registered: ‎04-20-2006
Message 4 of 9 (699 Views)

Re: spiral array

01-21-2012 04:16 PM in reply to: kmeldfreyssinet

Make pattern of workpoints in part file.
Make pattern of components in assembly file to follow part pattern.
Attach your assembly here.

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
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Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015-SP1 64-bit
http://www.autodesk.com/edcommunity
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Mentor
kmeldfreyssinet
Posts: 172
Registered: ‎05-06-2011
Message 5 of 9 (665 Views)

Re: spiral array

01-24-2012 01:46 AM in reply to: kmeldfreyssinet

OK this is some solution that is possible to use.

 

But it get me to another problem. is there any way to make paramiter value as result of non linear equation?

 

Regards,

Cris

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RANDYWINDERS
Posts: 236
Registered: ‎02-20-2008
Message 6 of 9 (562 Views)

Re: spiral array

05-23-2012 02:59 PM in reply to: kmeldfreyssinet

The above link doesnt work. I get a blank page. is there somewhere else I can get information on a curve driven pattern?

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JDMather
Posts: 28,056
Registered: ‎04-20-2006
Message 7 of 9 (544 Views)

Re: spiral array

05-24-2012 05:31 AM in reply to: RANDYWINDERS

A search here should turn up dozens of examples of "curve driven patterns".

What version of Inventor are you using? Is there information in the wikihelp (it is actually called Rectangular Pattern, but can be used for curve driven patterns).  (this link just worked for me http://home.pct.edu/~jmather/skillsusa%20university.pdf )

Please mark this response as "Accept as Solution" if it answers your question.
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RANDYWINDERS
Posts: 236
Registered: ‎02-20-2008
Message 8 of 9 (533 Views)

Re: spiral array

05-24-2012 10:38 AM in reply to: JDMather

Thanks for the reply.

I finally got the link to work. What I'm actually trying to do is attach digger bars to the trailing edge of an auger created using a helix curve. I'm still on 2009. The digger bars are an assembly consisting of a flat bar and a conical shape. I have tried to create a rectangular pattern of work points along the curve of the auger but it doesnt seem to want to follow the curve. The work points seem to wander off the center line. Not sure whats wrong.

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JDMather
Posts: 28,056
Registered: ‎04-20-2006
Message 9 of 9 (522 Views)

Re: spiral array

05-24-2012 01:16 PM in reply to: RANDYWINDERS

RANDYWINDERS wrote:

 The work points seem to wander off the center line. Not sure whats wrong.


Attach the file here.

Please mark this response as "Accept as Solution" if it answers your question.
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Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015-SP1 64-bit
http://www.autodesk.com/edcommunity
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