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i got this bad idea to set up my blender in meters and when i draw architectural plan , everyone use cm so then i tried to change my units

right now its like that :

enter image description here

my guy is 1.7meters tall , so its 170cm when you convert . if i want to move an object 30cm to the left i must type 0.3 and i really dont like that , no architects does that, its just not how you draw arch.

so here the changed version

enter image description here

now when i want to move something 30cm to the left i need to type 30 , thats exactly what i want , but now my object is 1.7 cm , all my scene is screwed

wait i know , i know, i can scale it afterward... but then what about my 130+ assets and +300 materials that are made in meters? are they all to rework one by one ?? i think its a huge fail blender think that 1.7 in meters is 1.7 is centimeters ...

can someone resolve my problem ? thanks

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1 Answer 1

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When you change the unit preset to centimetres you are changing the unit scale. The unit scale determines how big a unit is, a scale of 1.0 means one unit is one metre, and a scale of 0.01 means the same one unit is 0.01 metre or one centimetre.

unit measurement settings

You don't need to change the unit scale to be able to enter centimetre measurements, you just need the object size to be the correct scale compared to other object in your scene, this would mean scaling down small objects that import too large or adding .0 before any measurements you want to be in centimetres.

To move an item using unit measurements, press = to start advanced entry mode before you enter the amount. That is GX=30CM will move the object 30 centimetres on the x axis.

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  • $\begingroup$ So it's normal if blender convert 1,7meters to 1,7 centimeters? When I change units? $\endgroup$
    – Fox
    Jul 12, 2018 at 9:10
  • $\begingroup$ The other thing I don't like is that all units are automatically converted with the metric units that are the nearest, I don't want to have 1.7cm for a parameter, and for the next parameter working in kilometers, how awful is that? Can I just have centimeters work for Everything? I feel like metric units are a big fail in blender $\endgroup$
    – Fox
    Jul 12, 2018 at 9:14
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    $\begingroup$ It does the same for metric and imperial, the closest sub-unit to the number is used, so you will see 1.7Km not 1700M and 1cm not 0.01M. Note that the value is maintained, it is just the display that is abreviated. You can turn off units and have it display 0.017 if you want. $\endgroup$
    – sambler
    Jul 12, 2018 at 9:45

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