Slot Mate

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Solidworks Mechanical Mate

I have a pin with a slot mate shown with the green arrows I need this pin to additionally have a slot mate in the square hole  Slot Mates You can specify a default constraint type and lock the rotation for slot mates To select a default constraint type, click Options > Document

slot da bar 2020 Method 3: This is a combination of above 2 methods Add a distance mate using the side face of the plate with the corresponding plane of the pin Solidworks Mechanical Mate