(Note- I also machined this part previously, and it’s pretty nearly a perfect drop-in fit, though a few areas that I’d simplified from the original part needed to be modified slightly. Next we open up the model of the part I’d previously made based on calipers and micrometer and compare the two. And you can also override your preferences. How do we change the units in the part first head over to document settings, click this little edit button. Set it as overlay in Inventor–again, in a native-inch file–and Inventor recognizes that this is still a metric file, and we scale by. Fusion 360 How to change units in the part and drawing walk through. Having the Z-axis in the up orientation better aligns with the use of CNC machines and 3D Printers. Obviously it’s not meters- this part is 2-3 inches long. Currently, the Fusion 360 default is to have Z up. (It assumes meters rather than millimeters due to the density of the point cloud, which is pretty insane right now.) ReCap says “oh, damn, this is not inches,” and automatically sets units to meters instead. As I stated, my default units in ReCap are set to inches. This point cloud gets imported into Autodesk ReCap so that it can be saved into the format that Inventor wants to see. The red circle shows where my scanned part was broken.) (note: it’s already been into Cloud Compare and had the RGB value per point changed to a scalar field based on Z height, and it’s been into Meshlab to get aligned on planes. To confirm, load either of the object files into MeshLab, invoke the Measure function and see that the result has no scale, only a count. Open your Preferences dialog by selecting your Username (upper right-hand corner) > Preferences Select the Design tab of the dialog. My CAD software’s default can be set as I choose (I usually use either inches or millimeters, but I can choose among feet, meters, yards, kilometers, miles, etc.). The reason you are seeing millimeters in your CAD software is because it can deal with absolute measurements and that is the default for your system (not the case for everyone). Load the two objects into CAD software side by side and see that they are different “sizes”. Set the POP to a different distance from the object, scan it again and export that result. Scan any object on a turntable and export the result. The POP hardware does not measure in absolute dimension (mm, inches, meters, etc.). When you import it somewhere, your software should automagically assign millimeters Whether or not it’s explicitly assigning dimensions as meters or millimeters in the file, the output is metric.
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