topic Re: Constraint - Square inside Rectangles in Fusion Design, Validate & Document Forum

Constraint - Square inside Rectangles

Nickeliovich — Thu, 09 Dec 2021 21:22:16 GMT

I'm new to Fusion 360, but constraints give me a real headache.
I want to constrain centre of the 10x10 box to the intersection of the midpoints of the short sides of the two rectangles.
I will using parametic dimensions and I want the box to remain centred.
i throught this would be really stright forward using two midpoint constraints (one on the vertical side of the box, other on the horizontal side). I also tried colinear constraints, but you can't create a colinear through the midpoint of a line. I'm sure there is a really elegant solution without drawing construction lines, but after 2 hours I'm stumped.

Betreff: Constraint - Square inside Rectangles

g-andresen — Thu, 09 Dec 2021 21:57:50 GMT

Hi,

just try it this way

günther

Re: Constraint - Square inside Rectangles

jeff_strater — Thu, 09 Dec 2021 22:04:34 GMT

here are a couple of ways to do it, in the attached video

Betreff: Constraint - Square inside Rectangles

Nickeliovich — Thu, 09 Dec 2021 22:07:45 GMT

Thanks, but that's not where I wanted to place the square.
Do you think it possible to do using two contraints or do I need construction lines too?

Re: Constraint - Square inside Rectangles

Nickeliovich — Thu, 09 Dec 2021 22:15:22 GMT

Thanks Jeff,

Of course using dimenions makes sense if I'm trying to define Parametric Dimensions, I got hung up on trying to use constraints. I think I was on the right track, but needed to create midpoints first, before constaining.

Re: Constraint - Square inside Rectangles

jhackney1972 — Thu, 09 Dec 2021 23:18:08 GMT

You can do the constraining of the rectangle in the position you want it using two constraints. The key is to use the hold the Shift key while you are selecting the midpoints on two sides of the square sketch. The Screencast will show this process.

Re: Constraint - Square inside Rectangles

Nickeliovich — Thu, 09 Dec 2021 23:21:55 GMT

Thanks John,
I knew there must be a simple solution using constraints. I was trying all the wrong ones!