topic Re: reference a feature across components in assembly in Fusion Design, Validate & Document Forum

reference a feature across components in assembly

araugh — Sat, 29 Jul 2017 16:02:46 GMT

This is a little embarrassing as I'm sure it's incredibly simple, but I've been searching for 2 hours and haven't figured it out yet. How do you reference sketch geometry or a feature such as a hole to another component in an assembly in a linked fashion?

Example: in solidworks I can place part A on part B, then create the fastener hole on part B referenced to part A's through hole. When I move part A on part B, the hole feature on part B moves based on how I moved part A. It's not clear to me how to do this in fusion.

Project works fine for creating the initial sketch and feature, but the projection is not by default linked to the origin component so when I move part A, the corresponding feature on part B remains in it's original projected location

Thanks

Re: reference a feature across components in assembly

Ron_Jones1122 — Wed, 02 Aug 2017 17:46:48 GMT

I believe you are looking for the project geometry command. Sketch panel >Project/Include.

Re: reference a feature across components in assembly

araugh — Wed, 02 Aug 2017 18:05:15 GMT

Thanks for the reply, Project works fine for creating the initial sketch and feature, but the projection is not by default linked to the origin component so when I move part A, the corresponding feature on part B remains in it's original projected location

Re: reference a feature across components in assembly

jeff_strater — Wed, 02 Aug 2017 18:40:31 GMT

You have to remember that, in Fusion, the entire design is timeline-based. So if you have projected geometry from one component, then later move that component, it will not affect the projection, because that happened before the component was moved. To get the behavior you want, you will need to roll back before the sketch that includes the projection, move the component, and do a Capture Position. Then, the projection should update correctly.

Re: reference a feature across components in assembly

araugh — Wed, 02 Aug 2017 18:54:45 GMT

That's helpful in explaining the reason why that feature doesn't exist in Fusion. Is there another workflow or toolset in Fusion that allows the same end result? I love Fusion so far but designing assemblies with interconnecting parts is a substantial portion of my work.

Thanks!

Re: reference a feature across components in assembly

TrippyLighting — Wed, 02 Aug 2017 21:46:18 GMT

If you could post some examples, of designs where you've encountered difficulties that would really help. Also a screencast might be of great help.

Re: reference a feature across components in assembly

araugh — Thu, 03 Aug 2017 14:59:42 GMT

No screencast I'm sorry to say because I don't know how to make this work in Fusion at this time. Here's how it works in solidworks.

https://youtu.be/D3cLIWA2wtY

Part A (green) is secured to part B (black) with 3 screws. In solidworks I use the hole wizard (which I REALLY wish Fusion had) to add 3 #6 threaded holes to part B so that Part A can be secured to Part B with 3 fasteners.

Simple enough to do with projection in Fusion.

The place where this falls apart is when I need to make a change. In solidworks if I find that I need to move Part A by 5mm to create clearance for a cable run, I simply move the part and the referenced holes on Part A move accordingly.

How would I go about accomplishing the same thing in fusion?

Thanks!

Re: reference a feature across components in assembly

TrippyLighting — Thu, 03 Aug 2017 16:14:51 GMT

Hopefully this screencast provides you with a path forward.

Re: reference a feature across components in assembly

jeff_strater — Thu, 03 Aug 2017 16:16:34 GMT

Here's how you would do that in Fusion. Warning, I did not have a chance to watch your video, so it may not be the exact same workflow. But, it should illustrate the basic idea:

Jeff

Re: reference a feature across components in assembly

araugh — Thu, 03 Aug 2017 16:27:23 GMT

Thanks Trippylighting, that's an absolutely workable flow.

Thanks to everyone that took the time to help