Healing Non-Manifold Objects with Blender

have you ever found the perfect model and you're like sweet i'm gonna print this but then you go to slice it in what the flapjacks and then it dawns on you this thing isn't manifold it has self-intersecting and overlapping geometries there are loads of cloud-based sites that entice you to upload your models but what if you don't want to use the cloud or sign up for yet another service luckily we have a better option with blender healing an object in blender is really quite easy we're just going to enclose the object with the cube and do a boolean so let's get rid of the light x and the camera x and then bring in the object that we want to do a boolean operation on first let's take a look at what's wrong with this object let's go into the wireframe mode here and you can see these areas down here it's obvious that features have been added just overlaid vertices overlaid and it renders okay but if you actually try to slice this thing those self-intersecting geometries create all sorts of of angst or can anyway so let's uh let's heal this thing the first thing we want to do let's go back into shaded mode is try to sort of center this object on that cube and you can hit the g like y key to constrain it to the y movement and then sort of g z to sort of move it up a little bit all right now let's select the cube here and then with the mouse near the center of the cube s scale and then board cube that thing let's scale up more to enclose the entire house and we can go back into wireframe mode to see that then it's quite simple from here let us highlight it so you can see the changes as they happen go to the modifier and add a boolean click on self intersect and then the cube now it's going to think about this for a few minutes while it makes these changes and you'll see this object change as soon as it's done it might take a minute or two and then after the preview we'll just apply and then delete the cube there you can see the model updated and now all we have to do is apply which is going to cause it to do the same calculations again i'm not really sure if there's a way to avoid this double whammy but as soon as this is done the object is healed can be exported and that operation completed we no longer need the cube so we'll click on that and click x and it's gone now we can just simply export the fixed object let's see so that we can import it back into the slicer there we go now we're going to go back into kirimoto and delete the offending object and then import the fixed or healed object and rearrange that and when we slice it we now get the expected behavior which is the object is healed and manifold and fully solid and and then we're done so i hope that helps and look forward to your feedback and comments below

Channel: GridSpace

Views: 68,384

Keywords: blender, heal, stl, repair, manifold, print, slice, 3d print, slicer

Id: 2-11OwgRqmE

Length: 3min 28sec (208 seconds)

Published: Sun Apr 18 2021