Thicken patch surface Error

[JackalopeMFG]

The first time i created a model this way, i did not have an issue, the surface thickened without issue. I created a "mesh" of 3d sketch lines with a clear boundary to create a patch surface. I went back and repeated the design, with many less small variations and now the created surface will not thicken. I have tried a few things, and nothing has changed the resulting error of unable to create geometry. What is going on here?

[TrippyLighting]

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@JackalopeMFG wrote:

The first time i created a model this way, i did not have an issue, the surface thickened without issue.

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You got lucky using a problematic workflow!

The isocurve analysis tool shows a lot of non-ideal curvature in the model.

[JackalopeMFG]

Do you have advice? I sliced a 3d scan and made “best fit” sketches to create my base geometry.  @TrippyLighting 

[TrippyLighting]

Yes, but that will have to wait a couple of days 😉

It is a good bit more complicated. I is possible other users will chime in in the meantime.

[kacper.suchomski]

The fastest way would be to redo it.

Modeling this geometry requires about five sketches and the same number of operations.

It will take you an hour (or an extra day of watching YouTube tutorials to learn surface modeling).

[JackalopeMFG]

@kacper.suchomski  Okay… so maybe a little more instruction or a link to a tutorial would be more constructive. 

[TheCADWhisperer]

@JackalopeMFG 

Think about how you would manufacture the Mold for this part.

You are trying to model all in one feature, while in the real world it would be a series of steps.

The scan is so poor that photos probably would have been better reference.

[kacper.suchomski]

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@JackalopeMFG  napisał(a):

@kacper.suchomski   Okej… może trochę więcej instrukcji albo link do samouczka byłby bardziej konstruktywny. 

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https://www.youtube.com/results?search_query=fusion+surface+modeling

I mentioned an extra day of study. This doesn't mean a specific tutorial, but rather learning the tools to understand their essence and be able to choose the right combination for a specific problem.

[JackalopeMFG]

@TheCADWhisperer 
Yes I’ve programmed and machined molds plenty in the past, I don’t have much in the way of surface modeling experience. 
To machine it I would rough, semi finish and finish. How does this apply? I am an absolute guy coming from manufacturing, relative based modeling takes me some effort.  I down to learn and watch some videos, but can’t one of you give me two sentence worth of the process instead of criticizing without offering any actual advice?

 @kacper.suchomski in that case, Maybe you can help someone somewhere, but your comments were a waste of time. 

[JackalopeMFG]

Thanks for the link, that looks helpful. 

[TrippyLighting]

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@JackalopeMFG wrote:

 @kacper.suchomski in that case, Maybe you can help someone somewhere, but your comments were a waste of time. 

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Complex and intermediate to advanced topics cannot be conveyed in comments. Many YouTube tutorials only teach techniques, but are short of concepts. Afterwards you are able to replicate the specific widget covered in the tutorial, but are often left puzzling how o model other things.

What most people have trouble with when reverse engineering geometry is to dissect a model into it's basic constituents and then relate that to the modeling steps and tools to create that geometry.

If you go through the timeline of the attached model, it shows one approach to create similar geometry.