Nomad's default cube is actually 1mm "in real life"

I was reading in the forums some discussion about the sizing of models in Nomad. The app doesn’t have any actual ability to export out at a set size (as is the case with many 3D programmes). If 3D printing is desired then it is up to the user to get the sizing as needed in their 3D printer software. BUT, if you want to send to an online printing vendor then what? Well, you’ll need to find a third-party app that can do that for you. I think Meshlab can do that, but it’s been a while since I’ve used the programme.
In any event, I thought I’d do a little experiment and export out a default cube from Nomad and import into Rhino. I have used this programme for many years to design jewellery and such. It allows for super precise scaling. The attached screenshot shows said cube in Rhino and its actual measurement. Turns out it is 1mm on all sides. So, if you are trying to achieve a good start to getting your model to the right size before exporting just keep that in mind. For example, if you were making a character that you wanted to print out at 10cms in height. You could take that default cube, scale it in height x100 and now you have a “ruler” you can use to measure against your character.
Hope that helps.

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No it’s not 1mm in “real life”, the default cube is simply 1 unit.

There’s no standard nor convention that translates unit to real life size.
It depends on the softwares.

The Nomad default sphere more or less matches the default cube in Blender.

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Okay, perhaps “real life” is a misnomer. However, in practical terms when designing something for 3D printing what I wrote does work.

Any 3d printer softwares should have a “scale” option, it’s very common.

For example in Sculpteo, or Materialise.

In Nomad you can scale if you go in the gizmo tool, just type 100 or whatever value in the scale settings (for now the input value widget doesn’t work if multiple objects are selected though).

That is correct. Shapeways is a service that I use and they offer that as well. Not ideal, though, especially when designing rings and you need the INSIDE measurement to be precise.
And, yes, that is what I was suggesting to do in Nomad. Scale the cube to the size you want which you can then use as reference for your design. Using the method I described I know for a fact that I could design a character 10cms in height and upload to Shapeways to print without having to do any resizing on their platform.

Thanks for the tip @lensman.
I‘ll need to check that back and forth once.
From 3Ds Max I know that Import / Export and system unit settings can create a serious mess. Or the person in front of monitor :joy:

Anyway, with your tip one can create a Millimeter background grid as well.
Create a plane and a Cube / rotate the plane X=90 degree via Gizmo numerical input / put plane division X to I.e. 100. scale till Cube fits exactly into one poly of grid.
Set opacity of grid to zero.

Just one example.


Yeah, when I would export a cube from TinkerCad I had to scale it down to 1mm to match the Nomad default cube when I imported it into Nomad.

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Great idea. I’ve never even used grids in Nomad yet.

Well, it is a geometry plane, not a grid. Nomad‘s grid has on/off function, that‘s it.
So far. But a plane with opacity set to zero and activated wireframe is a workaround. Don‘t forget to use lock function to avoid selecting the plane.

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