Autodesk Inventor Tip: Tangent Constraint and Scrub Geometry

Recently we posted ‘Autodesk Inventor Tips: Sketch Zero Origin and Click Hold Arc/Slot | PLM Tech Talk Blog‘. Now we are sharing two new tips from our “120 Autodesk Inventor Tips”.

Our Autodesk Subject Matter Expert from i GET IT Learning has created these 120 short tech tips for Autodesk Inventor and presented these in a session at Autodesk University. We now, have shared first 4 tips in PLM Tech Talk, but to get full access to all of our i GET IT Tech Tips and Training Courses, Sign Up to i GET IT for an in-depth online learning courses from i GET IT.

120 Autodesk Inventor Tips – #3 Click Hold Tangent Constraint

To create a line segment tangent to an existing sketched arc or circle follow these steps:

  1. Start Line command
  2. Click and Hold on the arc or circle to start the line.

3. Drag line out away from the arc or circle and a Tangent constraint will be inferred.

120 Autodesk Inventor Tips – #4 Scrub Geometry for Inferred Constraint 

When creating sketch geometry you can use inferred constraints to automatically apply constraints, but sometimes the constraint first being inferred is not the one you want.

While the sketching command is active, if you move over (“Scrub”) your cursor over other geometry different constraints are inferred.

  • Inferred Constraint not currently the correct one desired
  • “Scrub” cursor over geometry you want constraint referenced to
  • New inferred constraint now shown

Now you know how to use Click Hold Tangent Constraint and Scrub Geometry for Inferred Constraint! but you can get early access to all of our Tech Tips in i GET IT Tech Tip Library by Signing Up and tick 7 day free trial and gain access to our in-depth online learning courses.

For more tech tips and in-depth eLearning for Autodesk Inventor, including new courses on other design solutions, please visit to explore more information or Just choose appropriate subscription plan to get started! If you should have any questions, please reach out to for help.

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