Linked Questions

1 vote
0 answers
91 views

what does manifold mean in context of surface building [duplicate]

This question is different as I seek to know a particular context of this subject i.e. wrt 3d printing. It is important for me to know what this means. " So, projection onto the first coordinate ...
nish's user avatar
  • 151
17 votes
3 answers
46k views

why does loop-cut-and-slide ignore some faces but not others?

why does the loop-cut-and-slide operation ignore certain faces but happily cut others?the model is symmetrical so it is a bit strange to pick 3 faces that won't get cut. I tried applying it to see if ...
ZCoder's user avatar
  • 725
11 votes
3 answers
21k views

Some edges on model won't Bevel

I'm very new to Blender. I've used a loop cut and slide to make the shapes I want to indent in this object, then extruded them inward to get them how they look now, then dissolved the unnecessary ...
Adam Boulton's user avatar
16 votes
1 answer
20k views

Why can't I loop cut a cone? [duplicate]

Why can't I loop cut a cone? I started a new file, created a cone and did nothing but try to loop cut it, and it didn't work.
Brooke's user avatar
  • 163
25 votes
3 answers
999 views

Creating an implant for spinal surgery - workflow questions

Pretty new to Blender here and with a pretty specific set of questions. The situation: I'm a vet looking to operate on a dog's spine. I want to put screws in a very specific location to avoid ...
user34276's user avatar
  • 271
10 votes
3 answers
29k views

Removing internal geometry before 3D printing

I am pretty new to Blender but I looked at some tutorials on how to build my own structure etc. I found one Youtube video at about 2:05 minutes, where they select all inner vertices with some clicks ...
drmariod's user avatar
  • 223
4 votes
2 answers
7k views

Boolean modifier: Carve vs BMesh solver

What is the difference between the solver for the Boolean operator. It is obvious that Carve and BMesh give different result, ...
Jacco's user avatar
  • 398
3 votes
2 answers
20k views

Edit STL file and perform a very simple cut

My goal is simple and as I have seen, there are multiple methods to perform a mesh "cut" but most are examples using a simple cube or sphere object. Being brand new to 3d prints, there is an object ...
Collin Chaffin's user avatar
6 votes
2 answers
16k views

cut a hole with boolean modifer not working

I'm attempting to cut a hole in a plane. I added a cylinder object, added the Boolean modifier to the plane, selected "cylinder" and "Difference", but no hole is made. The lower half of the cylinder ...
kei's user avatar
  • 855
5 votes
2 answers
7k views

Cell Fracture addon leaving unfractured boxes?

I have been trying to make a short clip of a bullet hitting a wine glass with wine in it, but I keep running into the same problem with the add-on. Every time I have used it the result has left me ...
user2348's user avatar
3 votes
1 answer
21k views

Can't dissolve certain edges

I can't tell why though... I tried to select all the edges and dissolve them but to no avail. I tried with only one edge selected but i wont do it... Can someone help me?
Akash Digumber's user avatar
9 votes
2 answers
7k views

Blender Boolean modifier: Difference behaves like union

Attached is an example in which difference modifier behaves like union. Is this is a bug (I think so)? See this .blender example in which I tried to use boolean modifier difference (Child is ...
Ben's user avatar
  • 91
5 votes
1 answer
20k views

Fixing non-manifold edge for 3d printing

I need to print out a toothed ring but it prints out as a disk, ie with the ring filled in. On checking the stl file in blender it has non-manifold edges and I think these confuse the printer. I can ...
rupert's user avatar
  • 61
7 votes
3 answers
14k views

How to deal with Cannot Execute Boolean

Some times when using a Boolean modifier, it will return the error "Cannot Execute Boolean Operation". This will often happen with multiple Boolean modifiers. Here is an example file. What causes ...
gandalf3's user avatar
  • 157k
4 votes
2 answers
7k views

Is there a way to "merge" two extruded regions to one?

I have a model as shown below, which is the product of two extrudes, bottom step followed by upper step. These are disjoint which I can see if I select the front face of the upper stair and drag it up,...
Sheph's user avatar
  • 143
5 votes
2 answers
2k views

Cannot execute boolean operation with imported SVG

I imported some SVG objects, extracted them and converted them to a mesh. When I tried to perform a boolean difference operation between them, I saw the error message "Cannot execute boolean operation"...
Lily Mara's user avatar
  • 153
3 votes
2 answers
8k views

bone heat weighting: failed to find solution for one or more bones error message

Here it goes again, the rigging error. I have a model that has a mirror modifier already applied and a subsurface and displace modifier (not applied) in my model. So when I try to parent my model to ...
Jass Kick's user avatar
  • 171
1 vote
2 answers
6k views

Problem with recalculating normals in a complex mesh

I have a mesh with a complex topology and some of the faces normals facing inwards. I have tried to recalculate the normals with Ctrl+N but there are still faces that won't flip. Any suggestions on ...
atek's user avatar
  • 10k
5 votes
1 answer
3k views

Attaching one face to another

I'm just beginning to learn Blender, and I ran into a problem. I ended up with two separate meshes in one object. I want to attach their faces together, as if I had drawn and extruded one from the ...
a52's user avatar
  • 155
2 votes
1 answer
6k views

Unable to fix error message "You should have an active texture to use multires baker"

I have been following Kent Trammel's YouTube tutorial series on creating a realistic head within Blender without many obstacles. In part 3 (https://www.youtube.com/watch?v=KoiYMx2xXGA&t=27s) he ...
Gage Benham's user avatar
2 votes
3 answers
7k views

Boolean modifier difference not working

I know this has been asked before - I've looked through and tested them all, and none works. I'm using Blender to create a medical implant for 3D printing. I need to make the inner and outer casing ...
user2585222's user avatar
1 vote
1 answer
7k views

Boolean Modifier fails or makes object disappear [duplicate]

I cant seem to Cut a hole in Any objects with the Difference operation while using the Boolean Modifier, All it does make Objects Disappear or Instead give me an Error(Unable to perform Boolean ...
Mods_o_joy's user avatar
2 votes
1 answer
3k views

What causes black shading errors?

As the picture shows, the bottom part of the hospital is covered with shadow and I don't know why. The face normals are not flipped. This happens in both solid view and rendered view. What causes ...
shamaseen's user avatar
  • 143
3 votes
1 answer
1k views

Need help with sculpting a shield

So I'm very new to Blender, literally only days old. I never studied 3D modeling, I'm trying to learn by myself, I'm watching lots of tutorials to learn, my main use for Blender will be 3D printing my ...
natkip's user avatar
  • 33
3 votes
1 answer
6k views

Problem after joining meshes

After I've joined 3 meshes into a single mesh with ctrl+j, part of it becomes transparent after I import it to Unity (see left side of the image). What could cause this and how can I fix it?
mattboy's user avatar
  • 197
1 vote
1 answer
5k views

How to smooth area with sharp edges?

I´m quite new to Blender and this is what I have achieved so far: Now I want to print a little model of this helmet. Unfortunately there are a lot of sharp edge areas like this one here: Is there ...
Fringillus's user avatar
7 votes
1 answer
2k views

What causes odd deformations when using Subsurf?

first time here. Alrighty, I'm quite new to 3D model design in Blender, but I have a little problem with my book model. The mesh is fine (I think). But there are a good few points where the text mesh ...
HighMaster's user avatar
1 vote
2 answers
4k views

Why is the boolean modifier not working with my model?

I want to cut the hole with the boolean modifier but it's not working. Anyone have any ideas why? Also, how can I trim a part from the model. Here is my blend file:
atek's user avatar
  • 10k
1 vote
1 answer
4k views

How to make a precise bolt hole in a simpler way?

I'm new to blender and using it to create 3d objects for my printer. Part of this is "cutting" holes for bolts very precisely which I managed to do but my way is so long/tedious I must be missing ...
shrimpdrake's user avatar
0 votes
2 answers
4k views

How to flip normals that won't flip

I'm creating some low-poly terrain in blender by starting with a grid, then pulling vertices up vertically using a random falloff to affect nearby vertices. I've ended up with some normals that face ...
rcorre's user avatar
  • 43
1 vote
1 answer
3k views

Manifold problems

I am doing a model to 3d print, I finished it, but when I put it on the slicing program, the model shows all sorts of bugs. After a search, I found that this is a Manifold problem, and then I made my ...
Haruna's user avatar
  • 21
1 vote
2 answers
2k views

How to create screw thread with a circular profile

I am new to blender and this might be a duplicate thread, so please point me to a similar question because I don't know the right vocabulary to formulate my question. I try to make a screw thread ...
drmariod's user avatar
  • 223
2 votes
0 answers
4k views

How to fix non-manifold boundaries

I am new to 3d modeling, and I have some problems after finishing my project. To preface, my goal was to create a tiger mask. My problem is that when I show my non-manifold elements, I have some non-...
Evan Revis's user avatar
2 votes
1 answer
2k views

How can I prevent invisible faces when exporting to FBX file?

I started recently learning how to use Blender to create 3D models, to use them later in Unity3D. Translating the vertices of a hollow cylinder, I created the following model. Please pay special ...
SebasSBM's user avatar
  • 123
1 vote
1 answer
1k views

Help with non-manifold geometry and stl file

Pretty new to Blender and modeling in general and I've spent a couple days trying to figure out this problem. Can someone more knowledgeable take a look and give me some direction? Background Been ...
Geuis's user avatar
  • 200
4 votes
1 answer
811 views

Is there a Solidify Extrude function?

The normal Extrude works like this: take selected geometry and move to another place. But I need something that leaves the selected geometry where it is and duplicates it. I noticed that when you ...
TheCycleOfBlend's user avatar
2 votes
2 answers
579 views

Object folding in on itself

I am working on a bedroom project in Blender while following a tutorial. I'm not sure what I did wrong, but while attempting to color the walls of my bedroom, I realized some of the parts were- ...
Scarxiett's user avatar
0 votes
1 answer
2k views

Errors creating .stl file

I am trying to print a small model for a class project. There were errors when I originally tried to export the stl file, which is here. https://drive.google.com/open?id=1Xuo7fPLtYH7GmFApBSuaffNCXg-...
Rebecca's user avatar
2 votes
1 answer
2k views

What is causing the bright edges on this mesh when using volume emission shaders?

I've followed an old Blender Guru tutorial on creating muzzle flash, using it in Cycles instead of Blender Render as he did. The mesh is shaped like a rounded double-ended cone, then has Subsurf and ...
user avatar
1 vote
2 answers
1k views

removed duplicated points, texture completely warped

Newbie here again, I'm having some texturing errors... I made a little low poly dog for fun, and was finally able to texture something properly! That is.. until I started to rig it. Everything was ...
Emily the Penguin's user avatar
1 vote
2 answers
1k views

Unwanted hard edges with subdivision modifier

This happens everytime I merge some vertices and then apply the subdivision modifier. I've tried removing double vertices and even if I delete the edge that seems to be causing the problem this ...
Inés Gallego Martín's user avatar
3 votes
2 answers
331 views

How can I see where a mesh is open?

I have a mesh that is supposedly open, but I can't see any holes in it. Is there a way I could find where they are?
Autumn's user avatar
  • 109
3 votes
1 answer
865 views

Does 3D printing with Blender only print faces?

So I'm pretty new to the whole 3D printing thing, and I was just wondering if only the faces will print when I use Blender to print a 3D model. For example, if I take a basic cube from the template ...
Franken Steak's user avatar
1 vote
1 answer
2k views

Can't get rid of shadow on mesh

I'm a beginner and can't seem to understand nor get rid of this shadow over the mesh... I'm guessing it has something to do with the faces behind the plane (extruded from an edge). No modifier besides ...
Lawkie's user avatar
  • 13
1 vote
1 answer
788 views

Mesh causing abnormal results with subsurf modifier

Probably an obvious answer, but I can't figure out why my mesh is causing such a weird crumpled up look with the subsurf modifier. I've gone through to make sure there are no doubles or overlapping ...
lakerice's user avatar
  • 1,687
1 vote
1 answer
2k views

Delete hidden connected face "inside" the mesh

I have recently been working on an addon called Smart fill, it's basicly a tweaked version of Blenders native fill tool. It combines grid fill,bridge edge loops etc - all on the f key. I am trying to ...
Jimmy Livefjord's user avatar
1 vote
1 answer
959 views

Ambient occlusion bake crashes blender (cycles)

I can't get an ambient occlusion bake to work with my file; every time I try to bake, Blender crashes. I'm using cycles render, and my object is pretty low-poly. There might be some weird geometry in ...
Valkyrie Savage's user avatar
0 votes
1 answer
1k views

Strange clipping with the mesh

So I made this cushion but it has this weird clipping or shading on the cushion part. Here it is without subdivision smoothness and also with it. Any ideas how I can begin fixing this? This was ...
Wolfgang's user avatar
1 vote
1 answer
893 views

How to boolean with non manifold geometry?

(note : my understanding of manifold is that the object is solid, closed. Tell me if I'm wrong) I'm working in an industry. I use Blender to adapt ingeniery/simplify CAD 3D models of a power plant ...
LeDucSAS's user avatar
  • 105
0 votes
0 answers
2k views

F2 add-on not working

I have installed Blender 2.77 on Windows Vista. I enabled F2 add-on but it is not working. I downloaded version 1.7.2 from the add-on site and enabled that too but still did not work. I checked for ...
Raj's user avatar
  • 1

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