Pattern / Fill using Curve

[landoll777]

I have a sketch in the shape of a "U" and I am trying to pattern points at a given distance apart along the curve. I have put a point on the one end of the curve and patterned it using Fill / Curve and my given distance. The problem I am having is that the distance works fine on the straigh legs but on the half circle the distance follows the curve, whereas I want the distance to be a straight line from point to point. So when i measure from point to point on the curve instead of being the 1.75 I need, it comes out to like 1.72 or so.

 

[jeff4136]

What version Pro/E?


Do you have to have points on arc ends or just where they
fall?


A general solution to the problem doesn't jump up and slap
me. I think I'd try doing the arc seperately and using a
rotational pattern based on calc'd chord lengths.


If you are using WF3, isn't there a polygon sketcher tool?
Might it help you accomplish what you want to do?

 

[proengineertips]

maybe you can try to create a point on the curve (by length).



** point creation - select the curve chain, not the single line.



After that, pattern the point. (by dimension)



next create the hole and create a reference pattern for the hole.



I've tested, it works.







Edited by: proengineertips

 

[deepakbhat_nie]

Try this.


You will have to pattern the points in 3 stages.I have shown you the patternmethod that can be used in the curved area.


2006-09-28_075552_CURVE_PATTERN.rar


Regards,


Deepak Bhat

 

[landoll777]

I followed "Deepak Bhat's" suggestion mostly, and it works for the most part, but it is not exactly what i want. The problem I am having is if the length of my legs change i need to redo my patterns each time. I really want to be able to have it all set up and update automatically. That is why i like the fill pattern command, but it doesnt seem to let me have a constant distance straight from point to point.

 

[deepakbhat_nie]

Hmmm, ok, what according to you should happen if the length changes? should the number of pattern increase or should the distance bw the patterned features increase?.


There is nothing gr8 abt if all you need to add is a lpogical relation.Well let us know what you finally want.we will try get you you the result.


Regards,


Deepak Bhat

 

[landoll777]

What I am working on is a chain. I am assembling the links of the chain based on the points. So the length between the links must be the same. Also the number of points will not change, because the number of links is already set. But the number of points on one leg would get less and on the other leg would increase. The number of links on the arc could change as well depending on where they fell.

 

[straupma]

Try this.





http://www.ptc.com/cs/cs_25/howto/aad1382/aad1382.htm

 

[landoll777]

I tired the bike chain that Pro-E had, and i could not get it to work. I downloaded the files they had and did the exact same tihng, but my points patterned in a circle instead of following the chain. I also did notice that their bike chain didnt keep the .50 distance around the curve either. if you measure the points around the curve they came out to something like .48. So i went back to my original pattern / fill/ curve and i get the same effect. It works for looks, but i prefer accurate. Maybe Wildwire 3 will have a different option on this. We hope to upgrade soon.

 

[rcamp]

Hello Landoll. Did you find a solution to this dilemma? I can't find one. WF3 doesn't have any enchancements that make it possible either. You can pattern at a given distance or a member quantity and it will determine the spacing, but the distance is measured along the curve and not directly. A real limitation. I thinking it could probably be done with behavior modeling, but that shouldn't be necessary for such a simple task.