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Questions tagged [knife-tool]

The Knife Tool cuts new edges into meshes, adding vertices to user-defined points regardless of existing topology. The Knife Project Tool projects the topology of one object onto another, using the current view angle. Use this tag for questions pertaining to the Knife Tool and the Knife Project Tool.

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How to subdivide many complex meshes?

I created a globe. Each country has its own mesh, because I need it like this for an app development. Currently, all meshes are big n-gones, which is not great for the deformation. Now, I am ...
Pascal Meger's user avatar
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0 answers
19 views

How to properly connect and do a proper topology on this manifold

I am trying to connect these together so that i get a proper mesh but I just don't know really how to. It has me stumped. I'm still a bit new to blender so any help please take your time to explain. ...
tacticalcatboy's user avatar
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25 views

Knife tool does not snap to vertex/edge/etc

Snap to Vertex is on. I have also tried snapping to the grid and the edge. When I hover over the vertex nothing is happening. I've dissolved the double vertices. Nothing happens if I select the start ...
alex.dx's user avatar
1 vote
2 answers
53 views

How to fix shading issue on the topology of the modified cylinder?

The model is a modified cylinder by moving some of its faces upward along Z axis. It has a shading issue shown on the following screenshot. How to fix this please? The following screenshots are what ...
Blender Lake's user avatar
2 votes
1 answer
106 views

How to mirror knife cuts on existing mesh?

I have an existing mesh model with bones, UVs, animation etc. and I want to change the mesh slightly without causing too much destructive change. The above shows the head with the -x and x direction ...
Jake's user avatar
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0 answers
29 views

How do I make the knife tool snap to the locations of vertices without it restarting the process?

As seen here I'm trying to make a face cut on a face based on the shape of some edges, but whenever I got from one vertex to another it resets the process removing my previous line point: https://...
Cerulean's user avatar
1 vote
0 answers
30 views

Edges created via knife tool cuts in Blender visible in object mode?

It's my first time posting on stack exchange so excuse me if I overlook some common courtesy with this post. I'm pretty knew to Blender, about a month in, and I'm working on retopologizing a mesh so I ...
Ocean Evers-Peete's user avatar
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1 answer
31 views

Subdivision or quad issues

I've created this speaker mesh just as a test, but you can see one of my circles I've cut into the plane works smoothly and the other doesn't. Just unsure as to why. I have a subsurf modifier which I ...
StewD's user avatar
  • 311
2 votes
1 answer
197 views

Why do I have this weird shading issue?

I'm modelling a Gameboy right now and after adding the dpad und an A button. After remeshing everything into quads I still have some harsh edges around the A button and I cannot figure out why. I have ...
flolopi's user avatar
  • 45
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16 views

How to cut circles out of the cube? [duplicate]

I am making some quick sketch of the dice. I need to make inner part of the circle leave a trace inside dice and with the outer part completely gone. How to make that?
RIPtilius's user avatar
2 votes
1 answer
58 views

Knife Project says it projects, but it doesn't

I line up a shape to knife project, and I click the object being cut first. Then I enter edit mode and click the cutting object. Then I go to mesh and knife project. It says it completed it but it ...
apoc's user avatar
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Creating precise connections on angled (intersecting) objects

I am trying to create precise connections on angled (currently intersecting) objects. I want to remove the green part from object A, the blue parts from object B, and the red part from object C. I ...
Chris S.'s user avatar
  • 293
2 votes
1 answer
90 views

How to project the outline of an object when viewed from a particular angle onto another object and use that outline to cut through the object

is there any way to generate a cut throw an object (target) so that the whole projection of another object (template) fits ? For example something like in the image: I have some 3d models (templates - ...
Iván's user avatar
  • 171
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0 answers
22 views

How do I cut edges with the knife tool on one mesh and make it match the edges of another one?

I'm trying to cut a mesh (the head) with the knife tool so I can connect the second mesh (the white headband) to it easier but I'm having an issue. I want to make the knife cut I'm making match the ...
Cerulean's user avatar
1 vote
0 answers
61 views

Knife Angle constraint wrong cuts

I cut with Knife tool > angle constraint(relative) with 30 degrees increments and it works kind of weird. Should it work like that?! https://drive.google.com/file/d/...
Dmitry Kolganov's user avatar
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1 answer
96 views

Normal/face bug total mistery

Original question go further in the post to see the edit 4 behaviour (Hello, i have a problem with my meshes they suddenly appear to have weird bug with normal only when i move my camera on axis like ...
Flavie404's user avatar
1 vote
1 answer
47 views

Trying to delete bad face, can select edges but not face

I am using knife project onto an object to make recessed portions. On the edge of object, I would like to inset and do a negative extrude, however, I end up with a thin face I cannot get rid of with ...
CNC's user avatar
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1 answer
133 views

Why is the Knife Tool not snapping to specific verticies?

I wanted to make arches for a car. I'm trying to cut the mesh verticaly (like on the second photo), but the knife doesn't snap to the verticles on the arches. Although, it does snap to verticles on ...
Mark's user avatar
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0 answers
50 views

Help trimming extruded faces at intersection going through seperate object

I'm new to blender. I'm having a problem removing a couple parts of a MakeHuman model. I am trying to remove the mouth cavity and eye sockets. Then I want to close up the holes. I'm starting with the ...
Neptune769's user avatar
4 votes
2 answers
273 views

How to wrap a 2D shape and Knife Project toward a cylinder axis?

I'm trying to make a technical drawing of an air compressor nozzle for 3d printing. Drawing the cylinder is trivial, but I cannot figure how to implement the cutout, or at least how to do it ...
kaltorak's user avatar
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0 answers
65 views

Object in edit mode acting weird - see through, knife tool not working right

So one of my objects and only this one, has this issue pictured where I can see through some of the mesh to the other side unless I zoom out a bit I can't see the behind edges, xray mode isn't on, but ...
kaboose1066's user avatar
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0 answers
20 views

How can I cut object in half in a straight cut so the two sides can be seperated for printing [duplicate]

After creating this vulcano and sculpting it, I have to cut it in half because the 3D printer isn't big enough for my design. In total I will have to do two cuts to get 4 pieces. How can I cut this ...
Andrea's user avatar
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0 answers
85 views

How do I non-destructively mirror cuts with the Knife Tool?

I'm looking for a way to make mirrored knife cuts in blender, be it via stock features or an addon. I want to preserve shape keys, UVs, bone weights, etc, so approaches such as the mirror modifier or ...
Kosyne's user avatar
  • 26
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0 answers
55 views

Split model into cube over a perfectly aligned grid

I am interested in taking a model and splitting it into 1x1x1 cubes. For the sake of a simple example, in my attempt, I have a simple model, the default cube in blender scaled up by 2. I have formed a ...
Zeruno's user avatar
  • 101
0 votes
2 answers
42 views

How do you snap knife to vertices obstructed by faces?

I made this mesh by applying a boolean and now I want to cut parallel with the top of the hole. The Loop Cut command won't snap to the point, so I'm trying to use the Knife tool and cut through the ...
kariomart's user avatar
  • 243
4 votes
3 answers
556 views

Delete edges with no faces

There are edges in my object that are connected to a vertex, but have no face connected to them. I've tried to select "loose parts", but it doesn't find these edges. I've also tried "...
Lori 's user avatar
  • 41
0 votes
1 answer
22 views

Bisect Tool Distorting Mesh

I'm trying to paint striping around this .stp locomotive model. I've previously done color separations using either the bisect or knife tools to define the boundary, but on this rounded surface it's ...
DeadpanBaldGuy's user avatar
0 votes
1 answer
251 views

Knife tool not working?

I'm new to Blender and I'm following a video on how to model a female anime body, all was going great, but when I tried to use the knife tool I started having problems. First off the knife tool doesn'...
Vorpal's user avatar
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1 vote
0 answers
64 views

Is it possible to have the Knife tool cut non-straight lines?

Beginner user of Blender here. Would it be possible to have the Knife Tool draw unstraight lines similar to the Annotation Tool..? Basically, what I want to do is to try and cut out a part of an ...
Random person's user avatar
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1 answer
31 views

Game asset n-gons management doubts

i am a relative beginner. I have a question that i am not able to answer, i know that in general n-gons are fine on flat surfaces if the model doesn't have to be deformed and quads are not necessary ...
DavideMzz's user avatar
0 votes
1 answer
134 views

Smooth a mesh after knife/bisect tool

I am new to Blender. I got a model from Kaedim/MidJourney, it had a kink, and I wanted to remove it. I tried the knife and bisect tools and they both work. The knived face looks ugly and I want to ...
emonigma's user avatar
1 vote
2 answers
93 views

Cut a face while snapping to vertices

I'm trying to cut a face along vertices. Basically, I've got one object (all one mesh) and I need to cut some parts out. I've already got the vertices in the right places. I've managed to create a ...
Josh's user avatar
  • 13
0 votes
1 answer
46 views

How can I align these vertices on a particular axis?

I need these vertices aligned on the X axis but I'm not sure how... I'm doing this to duplicate a cut I made on one side of a building to another with knife project... The screenshot is shown below:
prestonferry's user avatar
0 votes
1 answer
341 views

Can't cut certain faces with knife tool

I keep running into an issue where I try cutting on a face with a vertex and pressing the Z key or whatever corresponding key to cut with a straight line, but when I reach the bottom and click nothing ...
prestonferry's user avatar
1 vote
1 answer
27 views

Problem cutting object - results in polygon

[Translated]: I can't cut the object normally, instead I have a polygon. How can I fix this so that it no longer exists?
Денис Логинов's user avatar
0 votes
1 answer
377 views

Easiest way to cut out outline from mesh

How do I cut an outline/silhouette out of a mesh? I.e. remove all interior vertices inside the outlining shape create new vertices/edges around border of outlining shape Example: Here is Lake ...
SKNB's user avatar
  • 111
0 votes
1 answer
47 views

How can I cut this mesh into the object while it retains it's shape?

I've been modeling this Daihatsu Midget for a while now and I got to this part but I don't know how to "cut through and paste" these objects into the rear panel. What I have: What I would ...
TheNuvolari's user avatar
0 votes
1 answer
41 views

Using float numbers in knife's angle constraint

how do I use float numbers (0.5, 22.5, etc) in the angle constraint when using the knife tool? Whenever I try typing 22 and then the .5, it just resets and goes to 5 instead. I'm using Blender 3.2.0 ...
BrightParts's user avatar
0 votes
1 answer
157 views

How to remove this protruding mass inside a self-intersecting object?

Inside view of the object with the protruding edge that I want to remove. Outside view of the object. The tubular portion intersects the body and results in the protruding mass that I want to remove. ...
tlietz's user avatar
  • 3
1 vote
1 answer
2k views

Cut a mesh with knife tool and separate

I am pretty new to blender, trying to cut a mesh in different pieces. I know I can cut a mesh and then separate the mesh using the bisect tool, but I don't want to cut the plane, I want to separate ...
Hamperfait's user avatar
0 votes
0 answers
11 views

How can I get a clean intersection for inner wall corner? [duplicate]

I'm creating a modular kit for a game level. I started out by making a regular wall, and I'm now trying to use it as the basis to create the corners. The wall has a pivot located at one of the bottom ...
user3115020's user avatar
0 votes
0 answers
164 views

Blender 3.4 knife tool not working

The knife tool is not snapping to verticies when cutting, and also when I make cuts it will only make some cuts (see example). I dont have any duplicate faces or vertices, does anyone know whats ...
Peter Randall's user avatar
1 vote
2 answers
338 views

How to subdivide this n-gon shape to avoid artifacts?

I have this object which I filled with flat N-gon faces such as this highlighted face. And then I raised it using Propertional Editing. As expected it would ...
Harry McKenzie's user avatar
0 votes
1 answer
426 views

Cutting in a plane using an image as a mask

I would like to create independent tortoiseshells meshes from a boolean mask. The boolean mask would be used to cut in the plane automatically. The method I am using at the moment is to use the cut ...
Andrew Karam's user avatar
1 vote
0 answers
47 views

Can someone please explain to me why the knife tool is not working on some of the faces [closed]

I have been stuck here for a while and I couldn't figure out why the knife tool is not working on some parts of the mesh. This will clear a lot of confusion for me so please help me out here. Here is ...
Adnane Baya's user avatar
0 votes
0 answers
166 views

Is there easier way to fill this hole automatically?

Hello, I want to fill this hole like this : Not like this : I usually use "F" to fill hole and Knife tool to make it be along with edge lines manually, But if there is easier way to fill ...
Rolang14's user avatar
  • 105
2 votes
1 answer
2k views

some vertices won't snap when using knife tool

I try to cut through my face by just selecting vertices with knife tool, but it snaps only on one vertex so obviously i am doing some beginner mistake here. What do i have to do that it snaps to all ...
Chris's user avatar
  • 61.3k
0 votes
0 answers
214 views

Blender 3.3.0 Cut mesh with another mesh using knife project doesnt work! Help!

I just started to learn blender two days ago, so i might be wrong in may ways to use blender. So I have a geographical 3d mesh which shows a highway beyond a car tunnel. What I wanna do is cut this ...
muuute's user avatar
  • 11
0 votes
1 answer
922 views

Cut straight line with knife tool

Im trying to create a face in order to extrude upwards to create a wall for my church building. In order to do that I figured I make a cut with the knife tool like so: Ideally that line would be ...
ulvfdfgtmk's user avatar
1 vote
1 answer
397 views

Boolean Tool is not cutting properly

I am currently trying to make a 5 gang box faceplate for 5 drok meters to measure power. I was able to use the boolean tool to cut out the screw holes and one of the meter inserts. However, when I use ...
Benjamin Harms's user avatar

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