topic Ability to reference Driven Dimensions in Fusion Manufacture Forum

Ability to reference Driven Dimensions

banksysan — Sat, 15 Dec 2018 20:56:43 GMT

I need to create a line, the same length as another and with it's midpoint matching the midpopint of another line. (Picture probably show this better).

The highlighted portion on the right needs to match the one on the left.

I can do this with some fancy footwork creating a derived parameter and then setting all of then as the that parameter, is there a simpler way though?

Re: Ability to reference Driven Dimensions

Marco.Takx — Sat, 15 Dec 2018 21:53:11 GMT

Hi @banksysan,

You can also use the equal (=) constrain.

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Re: Ability to reference Driven Dimensions

banksysan — Sat, 15 Dec 2018 23:15:22 GMT

That ensures the lengths are the same, but not the positioning. I still need it to be centred on that arc.

Re: Ability to reference Driven Dimensions

Marco.Takx — Sun, 16 Dec 2018 06:37:25 GMT

Hi @banksysan,

Make the end points Coincedent.

A other option is to use circular pattern the left lines around the center.

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Re: Ability to reference Driven Dimensions

Anonymous — Mon, 15 Jun 2020 17:05:28 GMT

We still need the ability to reference driven dimensions after 6 years of this being requested and acknowledged by Autodesk. Autodesk claims this is not rocket science, but a lot of work. I don't see how this is either. They locked the comments on the ideaboard about this topic without offering an eta to complete this. I don't see how this is a lot of work for a company the size of Autodesk.

Your solution does not work if the driven dimensions changes. The dimension referencing the driven dimension will be stuck with the old dimension - not parametric design.

Autodesk claims this is because they made some poor design decisions in the beginning of making Fusion 360, which of course is true, but still not an excuse for this feature missing. Just because dimensions are for some reason only calculated in one compute pass at this time, doesn't mean its too difficult to make a new type of parameter that can be based on a second pass. The driven dimension is always available for us to look at and reference manually. There is no argument to say that it would be too difficult to allow the software to access this updated dimension automatically in the parameter process.

Re: Ability to reference Driven Dimensions

danmen101 — Fri, 02 Oct 2020 01:17:41 GMT

I quit using Fusion precisely because of this ie: cannot reference a driven dimension, which is totally ludicrous in 2020