linear circular mixed patterns

[PZas]

Is there any way to create a circular linear mixed pattern. For example if you have a thin walled tube and you want to put a heliptical series of holes in the tube.

Basically telling SW to step down the tube 1 inch then rotate 30 degrees and pattern the profiles.

This is SW 2004

 

[ctopher]

If I understand correctly, why not create a holes in-line in a sketch and extrude thru the wall...then circular pattern the hole feature 30deg?

Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP3.1 / PDMWorks 05
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[CorBlimeyLimey]

Check out the Curve Driven Pattern feature.

See also the examples at

http://www.mikejwilson.com/solidworks/solidworks_files-02.htm

Helpful SW websites every user should be aware of faq559-520
How to get answers to your SW questions faq559-1091

 

[PZas]

The problem I am having with the curve driven pattern is that the pattern items do not rotate correctly with the helix. If a pipe were to be inserted through the holes they would no longer intersect the centerline of the pipe.

ctopher I do not understand how that would result in holes in a heliptical pattern.

 

[SBaugh]

These are old models but I think this is what you are looking for

http://www.scottjbaugh.com/Design_Portfolio/Contributed SW models.htm

Check out the DLable models

Regards,

Scott Baugh, CSWP

http://www.scottjbaugh.com

faq731-376

 

[PZas]

I think I found what you ment...and it is as I hoped it would not be. Just to be clear what is DLable?

In those examples one has to either define every hole or have the holes linear pattern down the tube centerline. Unfortunately there seems to be no way to easily do this. I have come up with an approximation that works for cuts but will not work for extrusions.

It seems that there is little way to take a 3" pipe and make it so there are a ton of .25 inch pipes sticking in it through the centerline without making them with a linear pattern. We should suggest to SW to allow a linear pattern to rotate the patterned item X degrees every step. Or they should fix the curve driven patterns so that they really do stay tangent to the curve (as they do not at the present).

 

[SBaugh]

Downloadable

Scott Baugh, CSWP

http://www.scottjbaugh.com

faq731-376