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Mate References not behaving SW2012

Question asked by Derek Eldridge on Oct 15, 2013

I'm using SW 2012. I'm trying to use mate references on a library part i'm creating, "Hiem". The issue i'm running into is that i have mate references dictated exactly how the example from SolidWorks shows for 2012. Yet, when the Hiem is placed into the rack gear in an assy, only the first cylindrical face mate is established. The other two mates are ignored. If I change the order of the same mates for both parts, I can get them to work. For example, Putting primary in the tertiary spot and moving the others up, order of Secondary Tertiary then Primary.  I am having allot of difficulty with this because sometimes it works properly, and others like this sample will not. You can imagine the inefficiency of changing the order of mate references every time i'm going to use the part. Can someone take a look and tell me what i'm doing wrong?

 

I've attached two zip files with samples of my issue. The first following the solidworks example of mate references named, "Reference Mates Assy.zip". The other contains the same files with the mate references reordered and called, "Reference Mates Assy new mate order.zip".

 

SW 2012

My mates:

On HIEM part:

cylindrical face: Concentric

Mate Plane: Coincident

Plane 3: Parallel

hiem.jpg

On rack gear:

Cylindrical face: Concentric

Face: Coincident

Front Plane: Parallel

rack gear.jpg

 

From Solidworks Help 2012:

Example of Mate Reference with Multiple Mated Entities

Components bushing, shaft01, and shaft02 each have a mate reference named shaft, defined as follows:

 

Reference Entity

Primary

green.gif

Secondary pink.gif

Tertiary blue.gif

Entity

Mate Type

Entity

Mate Type

Entity

Mate Type

bushing.gif
bushing

 

cylindrical face

 

concentric

 

planar end face

 

coincident

 

face of flat

 

parallel

shaft01.gif
shaft01

 

cylindrical face

 

concentric

 

planar end face

 

coincident

 

face of flat

 

parallel

shaft02.gif
shaft02

 

cylindrical face

 

concentric

 

planar end face

 

coincident

 

---

 

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If bushing is a component of an assembly, and you insert shaft01 into the assembly, the components mate automatically. However, if you insert shaft02 into the assembly, it does not mate automatically with bushing because their mate references do not contain the same number of entities.

bushing01 and shaft 01.gif

bushing01 and shaft01
mate automatically

bushing 01 and shaft02.gif

bushing01 and shaft02
do not mate automatically

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