topic constraints in Fusion Design, Validate & Document Forum

constraints

Anonymous — Mon, 04 May 2015 04:04:56 GMT

Is there a way to find which constraints are enabled and to disable them?

Re: constraints

sachlene.singh — Mon, 04 May 2015 17:01:02 GMT

Quick question,

Do you mean constraints in a sketch or joints in an assembly?

Constraints in a sketch

Sketch constraints are always visible when the sketch is in edit mode. So if any constraints are applied to a sketch, they will be visble next to the geometry they are assigned to.

There is no way to disable a consraint, but if you would like to delete it, you can simply click on the constraint to select it and right click and choose Delete.

Joints in an assembly

All the joints in an assembly can be found under the Joints folder on the File Browser. You can click the little light bulb icon next to the folder to show all the joints or control their visibility by clicking the light bulb next to each joint.

To disable a joint, you can right click on the joint in the browser,or in the design window and choose Suppress. That will suppress the joint untill you right click it again and choose unsuppress.

I hope this helps. Let us know.

Re: constraints

Anonymous — Tue, 23 Jun 2015 12:34:06 GMT

I'm having the same problem. I have searched through the help and forum to find a solution, but my sketches somehow become contrained from the moment I draw them. I have not had the opportunity to use 95% of Fusion 360's features because I cannot get past a simple 2D sketch. I am on day 5 working on this problem scratching my head wondering why more people don't have the same issues. How can I know which constraints are active or not? There is no indication of this in the side bar even though that was just mentioned as the solution. Also, where did the constraints come from if I didn't put them there?

Re: constraints

Anonymous — Sat, 12 Sep 2015 18:48:08 GMT

I have had this exact same problem since the first day I started using Fusion many months ago. I'm under the impression that no one cares to explain the constraints problems I've been having. Maybe I'm just not important enough compared to career engineers who get it?

What I do know is that the following have been problems that could have been avoided had someone created a video or tutorial EXPLAINING constraint issues.

- Almost anything I sketch becomes over constrained in a matter of a few clicks even though I haven't added any constraints.

- Dimensions is nearly impossible for the same reason.

- There is no way to determine which constraints are active

- There is no way to remove the active contraints

- The mystery behind all of these problems has not been addressed in the nearly 100 videos I have watched.

Re: constraints

Anonymous — Sat, 12 Sep 2015 18:53:26 GMT

The statement below simply is NOT true. Constraints ARE NOT ALWAYS VISIBLE in sketch edit mode. They are truly invisible all of the time. If they were visible I WOULD DELETE THE STUPID THINGS!

@sachlene.singh wrote:
Quick question,
Do you mean constraints in a sketch or joints in an assembly?

Constraints in a sketch
Sketch constraints are always visible when the sketch is in edit mode. So if any constraints are applied to a sketch, they will be visble next to the geometry they are assigned to.
There is no way to disable a consraint, but if you would like to delete it, you can simply click on the constraint to select it and right click and choose Delete.

Joints in an assembly
All the joints in an assembly can be found under the Joints folder on the File Browser. You can click the little light bulb icon next to the folder to show all the joints or control their visibility by clicking the light bulb next to each joint.

To disable a joint, you can right click on the joint in the browser,or in the design window and choose Suppress. That will suppress the joint untill you right click it again and choose unsuppress.

I hope this helps. Let us know.

Re: constraints

keqingsong — Mon, 14 Sep 2015 16:25:27 GMT

Hey @Anonymous, let's setup a 30 mins online screenshare session where we can get to the bottom of this together. Do you have time today? If not, send me an email at keqing.song@autodesk.com and we can schedule it another day.

Re: constraints

Anonymous — Wed, 28 Oct 2015 00:31:22 GMT

I still cannot delete nor can I prevent constraints, which makes Fusion useless to me.

I'm attempting to draw pocket curves to force CAM to cut where it misses in the standard strategies. However, every time I draw a curve in Fusion, I get so many constraints (automatically?) that the curve is rendered useless. And I cannot delete the constraints. In fact, I have had constraints hold curves in place regardless of deleting anything and everything resembling a dot anywhere near it. They just reappear.

I've mentioned this problem for months and it has prevented me from actually using Fusion. I'm in awe that anyone can create anything since this problem persists in all of my drawings.

I am forced to open up other CAD/CAM software programs to draw the curves and cut the pockets. Then I have to piece everything together in notepad.

There has to be an easier way in the year 2015.

Re: constraints

Anonymous — Wed, 28 Oct 2015 00:32:30 GMT

Once again, I'm asking two questions

1) how can I stop fusion from creating all these dumb constraints?

2) how can I delete them since they are automatically included everywhere?

Re: constraints

keqingsong — Thu, 29 Oct 2015 00:08:40 GMT

@Anonymous, addressing your 2 questions:
1) No. When you sketch in Fusion 360, there will always be contraints associated with your sketch.

2) Yes, click the constraint and press delete on your keyboard. Please refer to the video below.

To better understand what you are experiencing, please reply with a screenshot. A picture (or video) is worth a thousand words.

Re: constraints

Oceanconcepts — Thu, 29 Oct 2015 02:23:44 GMT

I wonder if what you are seeing is not so much constraints- which should always be visible and can be deleted with the delete key- as your sketch lines snapping to or referencing other geometry (indicated by color). That would require a different method to break the link. And if that’s the case, stopping it from happening could be as simple as turning of the visibility or electability of some components. There have been discussions about having a sketch mode that would not allow these kinds of snaps.

If you could post some pictures or a screencast of what you are experiencing it would be possible to get much more help, it’s difficult to offer much assistance without knowing exactly what you are seeing. I think you will find this forum extremely helpful, but we need specifics.

Re: constraints

gregautodesk2J4ZV — Wed, 23 Mar 2016 00:14:28 GMT

Two ways I have found to delete existing constraints.

First, make sure you can see them by editing your sketch, opening the Sketch Palette, making sure "Show Constraints" is checked.

Deleting the constraint, method 1: Choose the "Select" Tool from the top of the drawing window, select the annoying constraint, click "delete".

Deleting the constraint, method 2: Under the Modify Menu, choose "delete" menu item, then click on objects you want to get rid of and click "delete" or "backspace".

I hope that helps.

Re: constraints

magpiemachining — Mon, 04 Jul 2016 09:15:18 GMT

thats would be easy to do if the constraints were visible. this is from a year ago and I'm having the same problem now. has this ever been solved? to figure one problem out requires modifying or fixing 20. i share the frustration as this user does. fusion works great just a bit confusing in mapping how to get to the end result your after. this problem seems to have no end. i can't remove a horizontal dimension constraint within 2 circles. i can move them vertically. nothing is visible in sketch mode or i would delete them. the only option is to delete the 2 drawn circles and redraw them with another dimension constraint because i have yet to find a way to tell fusion to put a circle, line or anything i draw at an absolute location. another task that seems to have a set process of how to get there but in a rather complex zig zag fashion. i come from surf cam one cnc master cam so I'm not a beginner just have more of a shop floor thought process where I'm finding fusion a bit different from that and needing a learning curve. can anyone help with this? the last on this thread the tech asked the user for a meeting and thats the last that was documented here.

Re: constraints

TrippyLighting — Mon, 04 Jul 2016 11:32:29 GMT

If sharing your frustration would include a screencast it would be much easier to help you 😉

The Screencast tool is a free download from Autodesk and it integrates nicely with Fusion 360.

If you can sketch a rough draft of what you want to do on paper we can show you how to get there by using Fusion 360.

In general constraints are there to help you, not to hinder you. The only truly hidden constraint is the coincident constraint on line end points of lines that are connected to one another, e.g. when sketching a rectangle. All other constraints are visible symbols that can be selected and deleted. They can also be added.

Please review the videos and other materials in the "Learn" section. the Sketch video explains a good bit of this.

It is actually possible that all constraints are not visible if you un-checked "Show constraints" in the Sketch palette :

Re: constraints

magpiemachining — Mon, 04 Jul 2016 14:43:16 GMT

http://autode.sk/29dsHCx

That is the screen cast. Mac died and am in phone. Let me know if you received it.

Re: constraints

Anonymous — Tue, 05 Jul 2016 10:27:05 GMT

Your constraints are not showing up on the original circles because that sketch is not activated. Open that sketch up and then your constraints will appear.