How to Add a Coincident in SolidWorks

By Arthur Ramsay

SolidWorks is a three-dimensional computer-aided design (CAD) program. CAD programs focus on making design easier and faster. You use SolidWorks to model an object by defining dimensions and relationships each part has. A coincident relationship, which tells SolidWorks that two points should always be touching, is a common and useful relationship in design. Coincident relationships can be used in both 2D sketch mode and 3D assembly mode to define your model.

In 2D Sketch Mode

Step 1

Select a line, point, center line or temporary axis with the left mouse button.

Step 2

Hold the "Control" key and select the second line, point or temporary axis by left-clicking it. A properties box will appear on the left-hand side.

Step 3

Click the "Coincident" button in the Add Relations section of the properties box.

In 3D Assembly Mode

Step 1

Click the "Mate" assembly tool.

Step 2

Click the first point, edge or face that should be coincident.

Step 3

Click the second point, edge or face. The Standard Mates bar will pop up.

Step 4

Select "Coincident" in the Standard Mates bar.