Maintining Scale on STL Import

[mfirlott]

I have an STL model of a skull that I scaled down in size to be about 5" x 5" x 7" using the free version of Netfabb. Resaved a new STL. I then took this resized skull into Windows 3D Builder to slice it into 8 pieces so I can try the 2-sided machining on it. I now have 8 separate STL from 3D builder, all scaled to about 1" thick. So the size remains about the same as the original resized model if I were to stack the slices one on top of the other.

The problem I'm now having is when I try to bring any of the slices into Aspire, the model dimensions are not what they were in the other 2 programs (about 5" x 5" x 7") or 1" thick per slice. As you can see from the attachment, one of the slices upon import reads 200.4"x X 84.8"y X 18.8"z ???

If I try to resize in Aspire, as there are 8 separate files, the resizing would not be consistent across all files and the slices will not glue up right.

What do I have to do for Aspire to ensure that the dimensions are the same as in the STL file?

Thanks for any ideas anyone may have.

[martin54]

Can't help with the sizing issues but just wondering why you didn't just import it straight into Aspire & then resize & slice it in Aspire

[mtylerfl]

You likely have Netfabb (or 3D Builder) set to export in mm instead of inches. Click the Scale mm/inches button and type in your desired value(s).

For more info on resize conversion from mm to inches (or reverse), see the following:

http://support.vectric.com/aspire-quest ... asurements

or

[Pete Cyr]

If you pick a value on one of the axis and type in the value what you want with the axis locked ....the system will scale the STL to that dimension

[mfirlott]

Thanks...I will try these suggestions.

Did not do directly in Aspire as model has too many undercuts and it looked terrible in Aspire. That's why I sliced in other software.

[mtylerfl]

If you pick a value on one of the axis and type in the value what you want with the axis locked ....the system will scale the STL to that dimension

Yup

[mfirlott]

OK...got it. Thanks for pointing me in the right direction.

As Netfabb is the free version, I cannot change any export settings BUT I did make sure in Aspire model orientation to lock the axis and chose one axis, the "x" in my case, and chose a factor, "x/30=" in my case and did this to all slices and now I believe it'll work just fine.

Thanks everyone for pointing me in the right direction.