Is it possible to move a part if it is fully constrained by mates in SolidWorks?
Short Answer
Yes — in SolidWorks, you can move a part that is fully constrained by mates, but only by temporarily overriding or editing those mates, most commonly with Move Component and the Physical Dynamics option turned on or by suppressing a controlling mate. A truly fully defined component will not drag freely until mate control is relaxed.
What You Need to Know Before
Warning: Dragging a mated component without understanding which mate controls it can cause assembly misalignment or make other mates rebuild with errors. A common hidden risk is suppressing one mate and unintentionally leaving the assembly under-defined afterward.
How to Move a Fully Constrained Part
Command: Move Component
Shortcut: None by default
Quick Steps:
- In the Assembly tab on the CommandManager, click Move Component.
- In the PropertyManager, turn on Physical Dynamics if you want to test movement against existing mates and collisions.
- If the part does not move, right-click the controlling mate in the FeatureManager, choose Suppress, then drag the component and re-enable the mate after repositioning.
Variables & Settings
Key Setting: Physical Dynamics
Expert Setting: This option lets you drag components while SolidWorks respects mates and detects realistic contact behavior. If all active mates fully define the part, movement will still be blocked until a mate is edited or suppressed.
Why it Fails
Cause 1 (Geometry): The part is fully defined by coincident, concentric, distance, or angle mates that leave no remaining degrees of freedom.
Cause 2 (layers/Locks): The component may be Fixed instead of Float, which locks it in place regardless of drag attempts.
Cause 3 (Command/Logic): Move Component does not override active mates; it only moves components within available mate freedom unless a mate is suppressed or changed.
Quick Fix & Best Practice
Quick Fix: Right-click the component, choose Float if it is fixed, then suppress the specific mate preventing motion and use Move Component to reposition it.
Manager’s Verdict: Use mate suppression only as a controlled assembly-edit workflow. For production assemblies, prefer editing mate values rather than force-moving constrained parts, because that preserves design intent and reduces rebuild issues.
FAQ
Can I drag a fully mated part in SolidWorks?
No, not unless one or more controlling mates are suppressed, edited, or removed.
What is the fastest way to test whether mates allow movement?
Use Move Component with Physical Dynamics turned on.
Why does Move Component not work on my assembly part?
The component is likely fully constrained by mates or set to Fixed.
.