Questions tagged [units]

Prior to version 2.9 Blender's default distance unit was an arbitrary Blender distance, known as None. Starting in version 2.9 Blender's default distance system is metric and the default distance unit is the meter. There are also units for mass, time, temperature and rotation. Units can be used when specifying transforms and can be relevant when importing and exporting. Use this tag for questions related to units and their uses.

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Append from a blender file with different unit scale

I have one architecture project, two blender files. Imperial unit system (feet), separate units (inch) in each of the two files. The idea was modeling different components in different files and then ...
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Apply scale factor to gltf import in python api

So, I am using the python interface to import a very complex model from a different application that uses cm and not meters, and I would like to downscale everything by 0.01 (still using python) to ...
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Is Blender a mess for precise prototyping?

I came across this youtuber's video: "Sì .. VFX è così facile (tutorial Blender)" that translates about "yes, VFX is so easy! (Blender Tutorial)" I started with some Udemy courses, ...
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BoltFactory changes units from inches to feet

I'm trying to create a model in inches including a 1/4-20 threaded hole. I'm using the BoltFactory add-on. Under Scene Properties, I've selected Imperial for unit system, and then Inches for length. ...
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Linux shortcuts keeps dominating the blender shortcuts [duplicate]

There are many shortcuts in Blender which are similar to that of Linux. For example if I have to select the lateral faces, I will do Alt+LMB. But in Linux Alt+LMB is also used to drag and move window ...
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Can anyone help me? [closed]

I was making a mesh for my project, then I scale the size smaller and apply the scale. When I rotate the object, all the vertices seem to wiggle all over the place, then I try to add a sphere into the ...
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How do you change the point of reference measure?

So I want to measure from the corner point which is where the 3D Anchor? is? The one vertex all the way to the bottom left. I want to measure from That to the selected bottom vertex.. How do you do ...
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Do drivers ignore scene Unit Scale?

I have a character with animations that I export as FBX and import in Unreal Engine. I was having some trouble with the the scale of the armature in Unreal, and after some research and seeing some ...
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Blender Scaling, Sizes

Im trying to design a piece for a mechanism in Blender, its x and y coordinates size should be equal. The z coordinate(height) should be a little higher. The size which is getting shown in my ...
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Force field set up for gravity simulation

I am trying to create a very simple example where I set a force field on an empty to simulate Earth's gravity. The scenario consist on: a cube, with rigid body enabled (active), set at an altitude of ...
4 votes
2 answers
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How to increase precision of color ramp affecting model?

I created color ramp with 10 colors. Every color point has typed position as multiplication of 10%. Values are: 0.1, 0.2, 0.3 and so on. The plane was divided 9 times, so the results are: 10 faces ...
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Is it possible to restriction-based modeling (like in FreeCAD) in Blender?

I am familiar to FreeCAD style modeling, which is mostly based on restrictions. But Blender uses another modeling logic. So, is there some plugins or settings to make modeling style more like CAD? ...
7 votes
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Set a Geometry Nodes input property with python and keeping the unit type

Is there a way to properly set a distance value for an input property of a geometry nodes group with python without loosing the value's unit type? I have a Geometry Nodes group with various input ...
3 votes
1 answer
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how can I make my donut has shadows just like another picture?

how can I make my donut has shadows just like another picture?
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1 answer
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Imperial units, math and geometry nodes

I have been trying to follow a YouTube tutorial about geo-nodes. (Luminous labs - BUILDINGS With BEGINNER GEOMETRY NODES 3.0 - Part 1 Color Blocks). I have tried it with my units set to metric and it ...
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How do I align/snap different objects together?

I'm still a beginner and I'm trying to design the Toyota AE86 from Initial D. I'm having a problem where I'm trying to align vertices together so they look as one. For example, I have the hood & ...
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Script coordinates numerical values always interpreted as meter (irregardless of Scene/Units settings)?

I am entering vertex coordinates into Blender using a script. In my case I am using the method mesh.from_pydata(vertices, edges, faces) and data comes through just fine. However, irregardless of the ...
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How to Determine Units of an F-Curve

I'm working on a script dealing with keyframes and I need to change the behavior based on the keyframes' values' units (e.g. meters for Location & degrees/radians for Rotation). How can I ...
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How can I effectively create a full face mask?

So I am having some problems, especially with stupid covid messing up my search. I am trying to create a full face mask in Blender but can't as I there seems to be no way to set the circumference of ...
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How are edge angles calculated?

I am curious how "Edge Angles" are calculated in Blender. In the picture below, the angle reads under 90 degrees even though it looks greater.
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Real Life Dimensions of 3D scanned object for printing

I have a NOX Charger Helmet and would like to 3d print a custom GoPro chin mount that will fit the helmet chin area. Something like this: The straps should get around into those 2 air vents from the ...
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Scale UVs in metric units instead of percentage

[TASK] I'm trying to create a script that gets the current UV unwrap of an object and then fits it into the UV 0-1 square WITHOUT REARRANGING IT and only set the distance between the borders of the UV ...
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Imported complex series of objects, dimensions in meters far too large

I have imported about 50 STL files that collectively constitute a truly awesome Big Bertha cannon. Working with these objects, I now have an elaborate scene with the cannon firing a mantaflow ...
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Top half of donut disappears when trying to hide the icing

Doing the donut tutorial. Duplicated the top half of the torus, made it into its own object, unchecked Edit Mode in the Solidify modifier, clicked Alt + Left Click to select the bottom row of vertices,...
1 vote
1 answer
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How to connect parts of mechanism and make them relative to each other?

I have number of objects and I want to make them relative to each other. When I change location of one part other parts should either rotate or change their location also.
1 vote
1 answer
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Edges of clearly different size display same edge length

I am very new to blender and working on my first model: a bed. I'm trying to model it with real world measurements, but I'm having a really hard time. I'm using Blender 2.93a and have a scaled cube ...
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Grease Pencil 'shimmers' with every frame in viewport

I have a video below, If you see carefully the lines are shimmering, Is there any way to avoid that? https://www.youtube.com/watch?v=aBIJbTTiLlU I tried increasing samples of viewport I tried ...
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How to change the amount of increment when dragging the slider in Properties panel?

After I changed Length under Units in Scene Properties from ...
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How to set multiple edge lengths to one measurement [duplicate]

I have a project im working on and every edge length is random. I would like to be able to enter a numerical value to set every edge to the same length. All edges are connected to vertices. I tried ...
2 votes
1 answer
588 views

Blender Units, wrong scale (but different scale) in every direction

I'll keep it short here, I have a model about 65x32x13mm (Both .blend and .obj are here), I was going to attempt to print my model however any time I bring the model out of blender (Export as .STL/....
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Height in Object mode does not match the height in edit mode? [duplicate]

I wanted to simply create a cylinder with height of 1cm and a radius of 10cm. So I set the corresponding scales in the toolbar: After that I went into edit mode, I enabled the edge length overlay ...
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How to import DXF file with exact scale in blender

I have import the DXF file in blender. The walls have 6 inch thickness in the CAD file. And when i imported in Blender the scale looks wrong. DXF file Note : I do not want to scale down the mesh and ...
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Issues setting units to 0.01 meters

When I set the scene units to 0.01 meters several issues appear, and I hope there's a simple solution. When set to adjust origin, the origin access icon is ridiculously tiny (this would be a ...
1 vote
0 answers
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.OBJ lacking "apply unit" scale option

I'm working on models that are much smaller than the default cube, which seems to lead to a number of issues (auto-merge kicking in too liberally, color ramp coverage being squished towards the center,...
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height and scale units not equal

So i made an object that is 2 meter wide and placed it 2m high on the z axis, but compared to the grid in the background it is twice as long as the height of it. What am i missing here?
1 vote
1 answer
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Change Dimensions on Project

can anyone quickly tell me, how can change the dimensions of my whole project. For example: If I am building a skyscraper and it is to big to navigate, it would be much easier to just put in the ...
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texture coordinate imperial units

I understand that by default, 1 blender unit = 1 meter. Setting "Scene Properties -> Units -> Unit System" allows me to model in some other units. I tend to use inches. So that's ...
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UV Warp distance units in blender 2.92 not scaling correctly

Using blender 2.92, I have my scene units set to: Unit System: Metric Unit Scale: 1.0000 Length: Centimeters Then I have imported a lego man who is about 5cm and dimensions in "Item" panel ...
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1 answer
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How remove face? [closed]

How can i remove that face on angle ?
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Blender Scale and Unit problem, how to fix?

Just a brief info about myself, I am using Alias AutoStudio professionally for almost 5 - 6 years at my work to model yachts and in rare occasions cars. I used Rhino as well, so I have some knowledge ...
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257 views

blender python insert keyframe matrix from exported data

I have default humanoid rig, and exported animation data using following code reference to csv file. NOTE: I am not using blender's in-built copy animation data as I am planning to modify code further ...
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1 answer
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My objects "exploaded" instead of playing the animation [closed]

So I'm new to Blender and doing my first project. This is the one I'm following: https://www.youtube.com/watch?v=bpvh-9H8S1g But the Tear It Down part for me looked different. Instead of playing the ...
1 vote
1 answer
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Blender's import scale and units

I want to import STL files which I know to be in mm, but blender displays it in meters. I know that I can change the units in properties->scene, but this converts the the units (1m->1000mm), so ...
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how to convert shape to volume?

I have a 3d model (.stl) of building and I want to use it in other software. The walls of the model are built with shapes, and I need the walls as volume. There problem is that the model was made by ...
1 vote
0 answers
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Unexpected size for script generated mesh

I'm using a script to generate a mesh: https://gist.github.com/dwatrous/efa2ea82fc2269e59afa182bf5ced0df I have my scene units set at millimeters with a scale factor of 1 For some reason, when I run ...
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Units and Measurements

Scene Properties Units are set to Imperial, which makes each square on the grid one foot. Theoretically, that is. The problem: Viewport Overlay will not allow for 12 subdivisions. Instead the grid is ...
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1 answer
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How to get Accurate Scaling When Making New Objects? [duplicate]

I seem to be running into an issue with creating new objects? Could someone please help me? The Set Up I am building a packaging mock up, that requires multiple boxes that slide together. the new ...
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Blender Units of scale and solidify modifier

I have my units set to metric, centimeters, and unit scale to 1.0, meaning that each grid square ecuals 1 cm. My object its about 17 cms long, so it is about 17 grid squares long. I all makes sense ...
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452 views

Extrude by unit amount, not percentage

I've got a simple square plane (Blender 2.83) that is 66 x 66 meters and that I created by first adding a plane, then setting its X and Y dimensions in the n menu ("Item" tab in Object Mode) ...
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Why does Extrude and Inset not use the same measuring units? [duplicate]

Hello there Community, I'm modeling a simple blocky logo and want to inset and then extrude by exactly the same amount, but this doesn't happen. When I inset a face by 0.00115... and extrude then by -...

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