How to Use Path Mate in SOLIDWORKS

Contents

A Path Mate constrains a selected point on an assembly component to follow a path. It is useful for rollers, sliders, pins in slots, carriage motion, chain-style examples, and simple motion studies where a component needs to travel along sketch or model geometry.

The key is to define two things clearly: the point on the moving component and the path it should follow. If either selection is vague, the mate can solve unpredictably.

Path Mate example in a SOLIDWORKS assembly — Path Mate controls a component point along a selected path.

Prepare the component and path

Before adding the mate, decide which point should ride along the path. This may be a vertex, sketch point, reference point, or center point. Then confirm the path is a clean sketch segment, edge chain, or curve that SOLIDWORKS can select as one continuous route.

Selecting geometry for a SOLIDWORKS Path Mate — A clean path selection makes the mate easier to control.

Add the Path Mate

Open the assembly.
Start the Mate command.
Open the advanced mate options and choose Path Mate.
Select the point on the component that should follow the path.
Select the sketch entity, edge, or curve that defines the path.
Choose the path constraint and orientation options.
Accept the mate and drag the component to test the motion.

SOLIDWORKS Path Mate PropertyManager — Path Mate appears with the advanced mate tools.

Choose path and orientation settings

Path Mate can control more than just position. Depending on the setup, you can control how the component behaves as it moves along the path, including pitch, yaw, and roll behavior. Start with the simplest constraint that gives the motion you need, then add orientation control only when the component rotates or flips unexpectedly.

If the part should slide along the path without spinning, add supporting mates to control rotation. If it should follow the curve with changing orientation, test the mate by dragging through the full travel range.

Path Mate orientation controls in SOLIDWORKS — Orientation settings help control how the component behaves along the path.

Test the full travel

After creating the mate, drag the component from one end of the path to the other. Watch for flipping, lockups, or unexpected rotation. If the motion is wrong, edit the mate and check the selected point, path direction, and any additional mates that may be fighting the path mate.

Testing Path Mate motion in SOLIDWORKS — Drag the component through the travel range before accepting the setup.

Troubleshooting Path Mate problems

The mate fails: simplify the path selection and confirm the selected point is valid.
The component flips: add orientation control or supporting mates.
The component will not move: check for other mates overdefining the assembly.
The path selection is incomplete: use a single sketch or a clean chain of entities.
The motion is jumpy: test a smoother curve or reduce conflicting constraints.

SOLIDWORKS Path Mate troubleshooting — Most Path Mate problems come from path selection or overdefined motion.

When to use another mate instead

Use a standard concentric, coincident, distance, or limit mate when the motion is simple. Path Mate is best when the component must follow a specific curve or slot-like route. For basic assembly setup, simpler mates are easier to rebuild and troubleshoot.

If you are working with repeated fasteners or hardware, see how to use Smart Fasteners in SOLIDWORKS. For interference checks after assembly changes, review Interference Detection in SOLIDWORKS.