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rajshyani
Posts: 6
Registered: ‎03-27-2012
Message 1 of 11 (159 Views)
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Creating a pattern of a single occurence of a pattern

159 Views, 10 Replies
03-27-2012 12:20 PM

How can I make a circular pattern of a single occurence of a rectangular pattern?

 

A shaft has a rectangular pattern of holes (along its axis) on its surface. I want to pattern the 4th occurence of this hole pattern as a circular pattern? Can I do it in Autodesk. I can not select the a specific occurance of a patterned feature to pattern it again.

 

Thank you,

*Expert Elite*
JDMather
Posts: 26,260
Registered: ‎04-20-2006
Message 2 of 11 (158 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 12:31 PM in reply to: rajshyani

How many holes total will be the result?

The only way I can think of to do it is with one Rectangular Pattern (curve driven) and suppress the unneeded instances of the feature.

Can you attach the file here?

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Active Member
rajshyani
Posts: 6
Registered: ‎03-27-2012
Message 3 of 11 (150 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 12:43 PM in reply to: rajshyani

Thank you for the quick reply.

 

Well, the shaft is 6" dia. with the holes patterned on a 120" length. I have two patterns of hole that run 180 deg to each other in a helical path. I want to circular pattern say Nth occurance of the helical pattern I made for the hole. Please look at the attached file. I want to circular pattern the hole at "Workplane20". If I can do that I want to do that for couple of more occurences.

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JDMather
Posts: 26,260
Registered: ‎04-20-2006
Message 4 of 11 (144 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 01:17 PM in reply to: rajshyani

What is the tap drill size for a 5/8-18 thread?

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Active Member
rajshyani
Posts: 6
Registered: ‎03-27-2012
Message 5 of 11 (141 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 01:23 PM in reply to: JDMather

Tap Drill size is 37/64. But I just created holes of 5/8" dia and made threads in the holes. I am not concerned about the hole/drill size right now. I just want to position/ orient the holes in correct position.

 

Thank you,

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JDMather
Posts: 26,260
Registered: ‎04-20-2006
Message 6 of 11 (138 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 01:43 PM in reply to: rajshyani

I would use the Countersink hole command to get the chamfer, thread, hole and 118° bottom of the hole correct.

Actually easier to do it correctly than to do it incorrectly.

I think you are doing more work than needed to get the desired geometry.
I will try to post an example of how I would do the part.  ( I would not use 3D sketch as it is not adaptive to changes.)

Please mark this response as "Accept as Solution" if it answers your question.
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Active Member
rajshyani
Posts: 6
Registered: ‎03-27-2012
Message 7 of 11 (136 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 01:47 PM in reply to: JDMather

But how would I would I do a helical pattern as I did in my case.

 

Also, do you find a method to make a pattern of a occurence of a pattern? I am more interested in that, as it seems more difficult if I would do it individually.

Active Member
rajshyani
Posts: 6
Registered: ‎03-27-2012
Message 8 of 11 (132 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 01:56 PM in reply to: rajshyani

Also, I dont know how to create a hole on the curved surface. It is really easy if I have a plane surface.

 

I really appreciate your help if you post an example to do this kind of pattern.

 

Thank you,

*Expert Elite*
JDMather
Posts: 26,260
Registered: ‎04-20-2006
Message 9 of 11 (125 Views)

Re: Creating a pattern of a single occurence of a pattern

03-27-2012 04:12 PM in reply to: rajshyani

I'll get back to you tomorrow with solutions to all the questions.

Helical surface (Coil Feature) is parametric

Workplane perpendicular to start of helix and tangent to cylinder gives plane to create hole.

 

Last one is a bit more work but I think I can get it.

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JDMather
Posts: 26,260
Registered: ‎04-20-2006
Message 10 of 11 (86 Views)

Re: Creating a pattern of a single occurence of a pattern

04-12-2012 04:13 AM in reply to: rajshyani

Did you get this figured out?
When a solution isn't found you need to push the topic back to the top so that it gets attention.

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