Mates in Onshape are different than mates in old CAD systems. Many assemblies require only one Onshape Mate between any two instances, as the movement (degrees of freedom) between those two instances is embedded in the Mate. Mates contain their own coordinate systems, so you can use one Mate to define the degrees of freedom between two entities. At the time of placing a Mate between two entities, Onshape offers points on each entity to which to align with the Mate's coordinate system. The suggested locations are based on the underlying geometry of the part and changing the geometry will change the location of the Mate. This can be undesirable in certain situations, but you can also:

  • Add an explicit Mate connector to an entity exactly where you want it if the geometry does not already allow an implicit Mate connector while creating a Mate. For more information, see Mate Connector.
  • 在装配体中插入布局或参考草图以用于对齐嵌合连接器。
  • Use more than one Mate if necessary.

如需学习中心的其他资源,请点击此处的技术简报文章:嵌合基本操作(需要 Onshape 帐户)高级嵌合技巧(需要 Onshape 帐户)