23 questions linked to/from Can I "fill" an empty object?
146k views

### The Boolean modifier is not working

I'm trying to model an M16, but it's not going so well when it comes to the magazine of the weapon. Next to the magazine is a mesh. I want to cut holes in the mag with that mesh. But the magazine ...
• 305
8k views

### How do I make a hollow sphere?

So my journey here is only days old, but am already struggling. I am trying to duplicate this: I've watched countless videos and repeated the best I can learn so far. So on my first sphere I've ...
• 209
22k views

### How to fill a mesh inner geometry to make a completely solid model

My mesh object is based on a CT bone scan so there are many inner geometries due to natural spaces in human bones. But I need a model that has no inner geometries. How do I fill inner holes and spaces ...
• 127
1 vote
977 views

### Solidify doesn't fill entire Mesh [duplicate]

I've pored over forums, youtube videos, anything to help me learn this feature. So please don't immediately smite me if you feel this is a duplicate question. Every video I've tried to learn from only ...
• 11
1 vote
680 views

### How can I evenly split a cube?

I am trying to make a mold to model the airway. Is there a way to split a cube all the way through in multiple parts. I am trying to cut the cube in this fashion. Is there way to cut it like this? I ...
1 vote
102 views

### Boolean Modifier Help - Difference - Surface Remaining

I'm very new to Blender but I'm trying to create a simple facemask. I am using a Head Mesh (using FaceBuilder add-on) and a simple hallow cylinder to create the profile of the mask that will sit ...
1 vote
144 views

### Why are my Regular Solids Hollow Sometimes? [duplicate]

I had done two projects where I used Add>Mesh>Math Functions>Regular Solids to create polyhedral dice that I added numbers to via Boolean Difference. Both of these went fine and my dice had the ...
• 51
1 vote
704 views

### How do I hollow a 3D model in Blender?

I am new to Blender and barely know it's features. I am working on a game and I have to make flying airplanes for it. I want to hollow the fuselage of the plane so that I can make the interior of the ...
• 11
1 vote
360 views

### Is there a way to fill in a hollow object?

I am trying to make a mold of an airway. My goal is to fill in the mold (rectangles) up to the inner geometry. Right now, they are completely hollow and I was curious if there is a way to fill in ...
3k views

### Solidify a complex hollow object in Blender

I am trying to solidify this object from the inside in Blender which was created using the Boolean modifier on a cylinder applied with five smaller radii and slightly longer cylinders. Using the ...
220 views

### Is it possible to take a 'slice'/plane out of an object and extrude it

I am wondering if it is possible to create an object from a 'slice' from a different object which is then extruded - hard to describe. Take for example a 3d model of an open row boat with the 3d ...
• 1,581
3k views

### Boolean creates a hollow object

I am trying to carve out some wear lines on a bullet, from where the barrel of a gun would cut into the metal. I am using a boolean modifier on the bullet, set to difference. It cuts into the object ...
• 173
232 views

### Walls on cross section of a solidified object look hollow

When I cut a solidified object (with Alt-b) to see how it looks inside - its walls look hollow (see picture) on the cut plane (but remain solid were they were not ...
• 167
2k views

### Is there a way to fill in hollow objects?

I am trying to make a mold of the human airway. To do so I need to subtract the airway components from a block, then 3D print the mold. It appears that all components are hollow, is there a way to ...