Quick Tip: Driven Dimensions | Autodesk Fusion 360

In previous versions of Fusion 360, driven dimensions in a sketch did not create any parameters that could be referenced by other parameters, formulas, or feature parameters. Therefore, the driven dimensions were restricted to a read-only display. The Autodesk Fusion 360 team is pleased to announce that with the January 2022 update, this is no longer the case!

Users can explicitly declare a dimension as "driven" by right-clicking on a dimension and toggling it on. Users can add a dimension to an already fully constrained piece of sketch geometry and Fusion 360 will implicitly create a driven dimension. The result of the driven dimension should be presented in the parameter table and available to use or reference like any other parameter throughout the design workspace.

CONNECT with Fusion 360 on social media:

LISTEN to the Fusion 360 podcast "The New Possible":

[donaldgibbs]

Thank you so much for this. Just want to point out to others, who may be searching like I was, that the driven dimensions will not auto-populate in the dropdowns as you type, but if you type them in completely they will turn black and work (probably obvious to experienced fusion 360 users but was not to me 🙂).

[mynt]

It would be nice if I can reference these driven dimensions in other features and sketches

[kimsmet-woodworksbangalore]

some dimensions show "Adding this dimension will over-constrain the sketch. Choose OK to create a Driven Dimension." It would be nice if these show up in the parameters list for further use.

[jeremygorski]

How can I avoid that Fusion rounds my driven dimensions? When I have an expression like for example mm) its value becomes 6.7 mm making my further calculations inaccurate and unusable, that are referenced by the driven dimension.