Parametric Model not calc a few parameters

Parametric Model not calc a few parameters

RufusToad
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Parametric Model not calc a few parameters

RufusToad
Enthusiast
Enthusiast

Hi,

I am trying to understand why only a few parameters are not being calculated and that through a compute error. Everything else is changing as expected except for a few Dados. 

If you change PLYTHICK .71-.75or PLYTHIN .48-.5 everything seems to change as it should except for a few dados.

 

If you open the sketch it has changed correctly but the model will not change the dado and I "THINK" it might be because the right panel was mirrored and has no sketch but I do not see why? The left side panel for example will not change the Base dado however the base changes and the dado in the drawing also changes?

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laughingcreek
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Mentor

I think you're overloading the sketch solver.  Fusion's sketch solver is pretty good, but it can be confused if you're not careful.  It is possible to paint yourself into a corner such that a sketch won't solve after over applying dims and then changing a value. 

 

 

here's one example from your sketch, but there are many others.  thinking about the horizontal position of the sketch highlighted in green, you can see that it's position is defined multiple times by the dimensions circled in red-

laughingcreek_0-1723061477283.png

this shouldn't even be possible, fusion should have given you an error saying this was over constrained.  I think it's being enabled by your habit of putting multiple lines on top of each other-

laughingcreek_1-1723061751050.png

 

 stacking lines on top of each other, as you have done all over the place in this sketch, can also really confuse the solver.

 

while you're learning the ins and outs of sketching, I would suggest keeping your sketches simpler.  don't stack lines, do as much as you can with constraints first, then add as few dims as necessary to achieve what you need.

 

Also-to help simplify things, I would also suggest doing the edge banding stuff at the end of the project.  after you've created your panels to size, create a section at the end of the timeline to create the edge banding.

 

additionally-you have taken what is referred to as a "bottom up" approach to modeling this,  creating everything at the origin and then jointing in place.  I would suggest a "top down" approach for flatwork like cabinets.  it greatly simplifies the design process.

 

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