Hi , good people . So i make aluminium rib boat which has length 12 m in maxsurf . but when I export to Rhino .3dm i met problems when make one solid body , I know there are something wrong . And then, I check the naked edge , there are 146 naked edges. and I also at beginer for rhino and After I search on this forum . Many thing I try, for example , First , I do repair edge but the result same. secondly, i do split surface but I can’t do that, etc. and what the steps I should do first ? Please i really
2000l.3dm (1.4 MB)
need help ,
something might have went wrong while splitting, i have no experience with maxsurf so i can not comment if that might have been an issue with creating surfaces that are less desirable,
there are a few of such instances where there are residual parts hanging over, you can select the other adjacent surface and use it as a cutter and use trim.
then there are such edges which might cause issues but necessarily,
here you have surfaces sticking through other surfaces, i guess you would have to trim something off or give these walls thickness for this to become actually joinable geometry.
i am not sure where to really start, the deeper i dig into it the more issues appear, maybe you also messed it up in Rhino while experimenting too much.
i can only suggest to maybe post the entire thing before you worked on it in Rhino once more.
I really don´t know here to start either.
But as a first hint, try to understand how tolerances in Rhino and other programs work, before you start a project in Rhino or exchange data with other software programs. On starting Rhino you can select different templates, which all have different settings. I tend to make my own templates, with my settings. Like for a aluminium boat, where you want to generate production data to really build this thing most probably you want to design to 1/10 of a mm. Somewhere in the help files is written, that you then should set your unit tolerance settings 10 times finer, so use 1/100 of a mm. Your model is in m, so this means 0.00001 m. For Degree tolerance I would also use a low setting. Your file has a tolerance of 1mm, and 1 degree. Please also check your step or iges export settings in Maxsurf, also if you want to export back to Maxsurf the rhino export settings. I don´t know the tolerance settings in Maxsurf. If your Maxsurf model does not join watertight in Rhino you might need to extend the surface edges in Rhino and trim them or match or build new surfaces.
second hint: your hull bottom is not developable. The bottom is degree 2 by 2 and u CV count is 21. For developable surfaces you need to go for degree 1 by 3 or 5, and build a ruled surface. U CV count should be a lot lower. Your design is not really fair, that also leads to trouble when you want to build it in Alu. There are some more issues with that design…
All developable surfaces are ruled, BUT not all ruled surfaces are developable.