Hi

I'm still quite the newbie with SW(2017).  I am attempting to add some reference check-dimensions at the assembly layer.  One of my components in the assembly uses a machined pin with a "chisel" tip.  I'd like to be able to snap to the center of its face as it is a primary reference point for other pieces that tie in to this assembly.

I can't seem to find a way for SW to recognize the center of a "square" face.  Am I missing something?

I am attaching a picture of the assembly. The highlighted blue face is the square pin's face I need to center on.

Any tips?
Bill

 

 

square_pin.jpg


Categories: General

Comments
Last comment By: Bill Dempsey   Thu, 14 Sep 2017 21:56:23 GMT
Re: How to snap ref dimension to center of rectangle

The simplest solution would probably be to place a sketch on that face (either in the Part or Assembly), and place a sketch point there.  I'd suggest a construction line from corner to corner, and then a point coincident with the center point of the construction line.  That way if the size of the face changes the point will update to remain in the center.  Another option would be to place a Reference Point there, but you'll probably still need some sketch geometry to fully define it.  The advantage of using a Reference Point would be the ability to use it for Mates without it being visible (you could select it from the tree).

 

Edit:  I just checked.  You don't need sketch geometry to define a Reference Point in that situation, so that would be the way to go.

 

By: Glenn Schroeder  Wed, 13 Sep 2017 17:43:12 GMT
Re: How to snap ref dimension to center of rectangle

Cool.  I was doing the lines trick but figured there had to be a faster/better way.  Still would love to see it "auto detect" a face center while doing some arbitrary dimensioning.  It's probably a bit related to my skill level as well.  Thanks for the tip!

By: Bill Dempsey  Wed, 13 Sep 2017 21:16:27 GMT
Re: How to snap ref dimension to center of rectangle

That's cool!  When did they add that?

By: Matt Peneguy  Wed, 13 Sep 2017 21:19:14 GMT
Re: How to snap ref dimension to center of rectangle

Matt Peneguy wrote:

 

That's cool! When did they add that?

 

I don't know.  I rarely use Reference Points.  Maybe it's always been there?

By: Glenn Schroeder  Thu, 14 Sep 2017 12:28:13 GMT
Re: How to snap ref dimension to center of rectangle

Thanks Glenn,

I don't know that I've ever used a reference point.  Now that I know grabbing the center of a face is an option, I may be using them in the future. 

By: Matt Peneguy  Thu, 14 Sep 2017 13:14:37 GMT
Re: How to snap ref dimension to center of rectangle

I should probably use them more often.  As I said above yesterday (and then crossed out) they don't have to be visible to use for Mates, which I consider a big advantage over sketch points.

By: Glenn Schroeder  Thu, 14 Sep 2017 13:17:44 GMT
Re: How to snap ref dimension to center of rectangle

Matt Peneguy wrote:

 

That's cool! When did they add that?

Here is a quick way to figure out when a feature was added.

Go to the web help and find the related help topic (as long as web help is turned on, which it is by default, you can just click the help button in the command or hit F1 to bring up the related help topic). In this case, here is the help topic:

2018 SOLIDWORKS Help - Point PropertyManager

Then go to the version pull down in the upper right corner:

helpversion.png

 

The versions shown in black have the same help topic in that version (as shown by the tooltip text). The versions shown in blue DO NOT have the same help topic (and you'll see the tooltip on those version has "Go to <version> home page" because there is no equivalent topic to go to). So in most cases, you can very quickly tell what version the functionality was added; in this case 2012. There are some caveats:

  • This will not indicate if the functionality within the particular command changed over the versions; you'd have to look at the content of the help topics to figure that out.
  • In some cases, the help topic may have changed drastically, been renamed, etc. and in this case, the "previous version" pull down list won't be able to tell if there is a previous version since this is based on the help topic name being the same.

 

Thanks,

Jim

By: Jim Wilkinson  Thu, 14 Sep 2017 13:50:31 GMT
Re: How to snap ref dimension to center of rectangle

Wow! Two pretty cool tips I learned in one short thread!  Thank you so much.

By: Matt Peneguy  Thu, 14 Sep 2017 14:02:33 GMT
Re: How to snap ref dimension to center of rectangle

Here's a quick update from my side.  I did end up using the reference point method that Glenn suggested but I was not able to make Smart Dimension recognize a reference point as a dimension start at the assembly level.  So I ended up then adding sketch points at each of the reference points and that worked.

By: Bill Dempsey  Thu, 14 Sep 2017 21:56:23 GMT
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