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1-Visitor
May 29, 2013
Question

Radial increment not correct for Concentric fill pattern

  • May 29, 2013
  • 2 replies
  • 2366 views
We're having some problems with the radial increment not being correct on a part with a concentric fill pattern so I made a very simple part and I'm seeing the same thing which makes me feel like I'm misunderstanding something...



I am trying to make a pattern of holes in a concentric circular pattern to fill a given space. I create a hole at the center and then use a fill pattern with concentric circular pattern and enter the desired radial and separation spacing - seems like it should be easy... [cid:1817ecd0-bc42-4834-82b0-2f712f835220]

When I measure the spacing distance it is exactly what I entered: 10.00:

[cid:1602a781-3d77-4ce5-8d92-2934647538b2]



But when I enter the radial distance it is always a little off from the value I entered - in this case I entered 15.000:

[cid:14dfef9c-7ae8-4b35-b2d1-477419df2c5a]

Can anyone explain why this is? I have a call in with PTC but haven't gotten any response yet.



Any advice highly appreciated,



Abby Dawkins

MCAD Support

KLA-Tencor Corp

(408)875-5892

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2 replies

1-Visitor
May 30, 2013
Hi Abby,
Is it because a circle with radius 15 has a perimeter of 94.25 which
doesn't divide into 10 evenly? This means that either the radius or
spacing need to be modified slightly (or both). I don't know how to tell
ProE which dimension is more important.

Regards,
--
Mark von Huben
Cochlear Ltd



1-Visitor
May 30, 2013
[cid:image001.jpg@01CE5D3B.D67664E0]where L is the section length. There are only two variables so creo must prioritize and ignore the second input