topic Re: Over-constrained sketch with no constraints in Fusion Design, Validate & Document Forum

Over-constrained sketch with no constraints

Bendaehyunlee — Sun, 05 May 2024 23:22:20 GMT

I am trying to change one side of the rectangle to be closer to the edge, but I am receiving the over constrained error. I have looked at lots of similar problems, but I don't have any constraints set on this shape at all. I am very new to Fusion, so this is probably my fault, but I can't find much online about this specific problem.

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Re: Over-constrained sketch with no constraints

Drewpan — Sun, 05 May 2024 23:58:35 GMT

Hi,

There are a number of constraints that I can see that fusion has automagically created. The little ruler icon and the

little triangle are equal and midpoint constraints. I can also see that some of the lines are black and some are blue.

The black lines will be constrained in some way and the blue ones are unconstrained.

Don't stress too much about being new. We all started somewhere and we are all still learning, you are just less far

down the road than some others. First thing we need to do is look at your model. Pictures are good but we can see

what you have done on the model. To Export your model go here and attach the file to your forum post.

I would strongly suggest looking at RULE #0, #1 and #2 that are pinned to the top of the forum. This will start you on

your learning. The documentation has embedded tutorials and the Self Paced Learning has step by step videos to get

you started. It is worth the time and effort to go through this stuff. Sketches and constraints are fundamental to good

modelling.

Cheers

Andrew

Re: Over-constrained sketch with no constraints

jhackney1972 — Mon, 06 May 2024 00:06:10 GMT

Please attach the model in question. If you do not know how to attach your Fusion 360 model follow these easy steps. Open the model in Fusion 360, select the File menu, then Export and save as a F3D or F3Z file to your hard drive. Then use the Attachments section, of a forum post, to attach it.

Re: Over-constrained sketch with no constraints

Bendaehyunlee — Mon, 06 May 2024 00:21:26 GMT

Thanks for pointing out that triangle and those rulers. I was simply able to delete them, and my problem was solved. Thank you.

Re: Over-constrained sketch with no constraints

g-andresen — Mon, 06 May 2024 08:37:40 GMT

Hi,

The reason for the message:
The blue rectangle was connected with left upper corner to the center of a projected line.
The distance (as well as half of it) is already defined by the origin of the projection (sketch or solid).
This is the reason for the message.

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If you have removed the midpoint constraint, the blue rectangle is still connected to the reference line via a coincident constraint but can be positioned using a dimension.

Günther