Find us on Google+ Creating Arcs without Exiting the Line Tool in Autodesk Inventor ~ Inventor Tales

Sunday, December 02, 2012

Creating Arcs without Exiting the Line Tool in Autodesk Inventor

“Force never moves in a straight line, but always in a curve vast as the universe, and therefore eventually returns whence it issued forth, but upon a higher arc, for the universe has progressed since it started.”

Autodesk University 2012 is over!  And frankly, it was fantastic!  I had a great time, met some wonderful people, and learned a ton of new things!

But a consequence of getting all that information is.... I'm beat!  So as I play catchup on sleep, and life, this blog post remains quite brief.

Has anyone out in the verse, while sketching, tried to create an arc from a line in Autodesk Inventor?  It can be done by using the "arc" tool, but it's going to likely remain returning to the sketch, and adding sketch constraints.

This tip comes from the "bucket of little things" that are simple, but make sketching easier.  This is how to create a tangent, or perpendicular arc without exiting the line tool.

1) Start drawing the lines required for the sketch

Start with the line tool.

2) Stay in the line tool when ready to create the arc.

Don't exit, stay in the line tool!

3) Click on the start of the arc, and while holding the left mouse button down (this is important!), imaging drawing the arc with a pencil.  Make sure to hold the left mouse button down until ready to create the arc.

Getting ready to create the arc

4) Draw the arc (either perpendicular or tangent) while holding the left mouse button down.  When ready, lift the left mouse button.  Now you have created an arc!

When ready to create the arc, lift the left mouse button.

Granted, there is a trick to it, and it takes practice.  The single biggest tip I can offer is to draw a little more slowly, and definitely more deliberately!  Rushing the task usually means making mistakes and redoing things.

But with a little practice, I think this is a great tool.  I encourage giving it a try!

For a little added info, here's a video to go with it.

Do you have a few thoughts or suggestions?  Add a comment below!


  1. Very helpful, thanks!

    1. I always thought this was a little gem that is often overlooked. I'm glad you found it helpful!


  2. I seem to have a setting that I have changed by mistake. I could do this but now it will not work. Anybody know what the setting is and where I can find it?