when i try and flat pattern the parts of the boat everything works other than the main hull plate?
The main issue is the use of splines. Sheet metal will not process a spline as a profile to be used in sheet metal because there is no defined curves to specify the bend lines even using lofted bends. Unfortunately they still allow you to create the lofted bend but no flat pattern will be created. If you trace over the splines with arcs then try again a flat pattern will be created.
my splines worked fine on all other components. the error according to hawkridge is the fact i extrude cut the hull sheet on the center line creating a bevelled sheet edge as well as at the back of the boat i did the same. once these were removed it unfolded fine.
I am unsure how i should have trimmed these parts and waiting to here there suggestion. I am still learning
That is correct to a point. There are some situations where you cannot use a spline to create the profile of a sheet metal part. But after looking at how you did this one, they are correct.
Also I did not catch the beveled edge, but that would cause it to fail as SolidWorks needs a uniform thickness and edges that are perpedictular to the sheet face (for creation, but you can cut bevels into some sheet metal edges and still have it unfold).
We are all still learning, just welcome to the club!
I have struggled wth this and come to the conclusion it is a waste of time fooling around with it in SWX.
I transfered surfaces over to Rhino3D to flatten all the surfaces.
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