hey i seem to have a bit of an issue with a few basic behaviors. In this tutorial i follow along with everything step by step and i seem to still get it wrong. I’ve created a cube and extruded it out then i do a polar array and then i try to boolean join everything together, boolean fails and get hit with a warning. I dont know what these warnings mean nor do i know how to check them. It seems to me i have managed to create more than one body or face or something along those lines. this is also an issue i seem to struggle with. its happened to me several times and i can never tell when it is happening. how do i stop doing this? I cant check everything i do with “sel****”. Id like to figure out what im doing wrong to begin with so i can be more consistent with my modeling. I do this alot it seems
when you click on those exclamation marks the properties panel pops up to your right there below under secondary text is an explanation. it says: Intersection curve ends at a naked edge.
that means that you can not boolean union open polysurfaces it is open on two sides you have to close these up then array once more.
Thanks, after posting i went back and worked it till i got it. Seems the order in how i extrude things is important. If i scale something it keeps all surfaces joined as one body? Honestly I’m not sure how i am doing it wrong. I think i tried to extrude one face resulting in open surfaces or naked edges or something. How should i be handling a body i want to stay in one peice?
lol ok cool. When is the correct time to join something then? I’m probably going to have to learn the difference between extruding a surface as oppose to making a solid body like a cube or a cylinder
but if im joining things together everytime i make something doesn’t that create more bodies?
that depends on what you need it for, scaling is obviously not a good method if you have more complex parts that should not scale into the direction you need.
for polysurfaces with planar faces, you can always use subselect with ctrl shift (works on corners, edges, surfaces) and move the edges faces. or you use SolidPtOn which will display its solid points which you can move and navigate, just be carful once you start twisting stuff making surfaces unplanar you have very limited options, basically it rebuilds the surfaces to patches, when you skew them once more you might end up with geometry that freaks out and warps, so only do that when you know what you are doing.
once you have your general shape finished closing it is a good practice. edges can still be filleted etc but the main geometry will stay untouched.
usually extruding a planar curve with option solid will close up your geometry. if you extrude non planar curves you will not have a solid of course.
there is a difference between extrusion and polysurfaces, extrusions are light weight geometry, which is handy when you have a lot of simple extrusions which you do not work on further.
use UseExtrusions to change the state of created extrusions
