Auto Scaling necessary?

[BPerry2020 0]

I am using Autodesk Fusion 360 2.0.11415 and just upgraded to Cura 4.12.0 .  Whenever I send a body for printing to Cura it is Auto Scaled 100000X.  The body that is being printed was designed to be about 6" long in Fusion 360.  Before the Cura update from 4.8 it would be transferred at a reasonable size.  What is going on that it has to be enlarged so much to be seen on Cura?  Is this a Fusion setting or a Cura setting that is creating such an infinitesimally small imported item? 

[nallath 1,098]

12 hours ago, BPerry2020 said:

I am using Autodesk Fusion 360 2.0.11415 and just upgraded to Cura 4.12.0 .  Whenever I send a body for printing to Cura it is Auto Scaled 100000X.  The body that is being printed was designed to be about 6" long in Fusion 360.  Before the Cura update from 4.8 it would be transferred at a reasonable size.  What is going on that it has to be enlarged so much to be seen on Cura?  Is this a Fusion setting or a Cura setting that is creating such an infinitesimally small imported item? 

I think you might be exporting your models in Inches, whereas cura expects them to be in mm. STL unfortunately doesn't have a standard unit size, so it's up to the consumer to interpret it. So either use .3mf files (that do have this capability built in), scale your models by hand or use the barbarian plugin (https://marketplace.ultimaker.com/app/cura/plugins/nallath/BarbarianPlugin)

[BPerry2020 0]

Thanks.  That was it.  I still like designing in inches but the output to Cura was in mm.

[ahoeben 1,717]

The MeshTools plugin has an option to automatically scale STL files as they are loaded, if you always save STL files in inches.