topic Re: Can only change a dimension a little at a time in Fusion Design, Validate & Document Forum

Can only change a dimension a little at a time

bentwookie — Mon, 01 May 2017 15:29:23 GMT

Hi everyone. I've got a sketch here where I'm trying to build a section to revolve. I built it at some random distance from the origin, and now I'd like to move the whole mess out to the radius I require.

If I set a dimension from the origin to that bottom flange, it's fine. If I increase that dimension by a few millimeters, I can walk the whole collection up as far as I'd like.

However, if I specify a larger jump, the constrains fail to solve and I'm told to remove that dimension.

Can anyone spot the problem, or suggest a way I might build this where I don't run into this issue? I could walk it up, millimeter by millimeter, but you just know that will bite me later 🙂

Here's a link to the file. The sketch is HourRing:Sketch2.

http://a360.co/2pPkYa9

Thanks for your advice!

Re: Can only change a dimension a little at a time

bentwookie — Mon, 01 May 2017 16:11:00 GMT

Heh. So I re-did this, but instead of setting the two right-most vertical lines equal to each other with constraints, I defined them via math. That worked. But having done that, the original collection started solving fine with no change. Non deterministic solver voodoo I guess?

Re: Can only change a dimension a little at a time

jeff_strater — Mon, 01 May 2017 16:12:31 GMT

Thanks @bentwookie, that's definitely a bug. Thanks for sharing the design. Glad you were able to find a different way to do that, but we will look at the solver bug with that dimension.

Jeff

Re: Can only change a dimension a little at a time

bentwookie — Mon, 01 May 2017 16:13:39 GMT

Glad to help. Do I need to do anything to preserve the version it was occurring in, or do you all have what you need?