Embedded Files
Many times an individual scan or rotary scan is not enough information for the end use of the scan data. FlexScan3D has alignment tools in order for you to connect multiple scans together. There are a few different ways to go through this process.
Automatic
Automatic
First you can tell FlexScan3D to try an align scans automatically. This setting can be turned on in the top left corner in the meshing box. In order for this to work you will need the view window to be in the same direction as the scanner is pointing at the object. You will also need at least 30% of the last scan visible in the new scan.
By Hand
By Hand
Alternatively you can align individual scans by hand. This is done by having two scan loaded at the same time. Selecting one scan, pressing the alt key, then by using the same commands to move the scan as before, only the selected scan will move. Adjust the position of the new scan until it is roughly close to where it should line up with the previous scan. Then you have four options for alignment found in the drop down menu under the button:
Mesh Geometry: This is a fast alignment that roughly uses general shape to find common information to align the two scans together. It is recommended for the initial alignments.
Selected Geometry: This can be used if you select a region using the CTRL key, FlexScan3D will only to align information similar to the area you have selected.
Fine Alignment: This is a refined command that will find the most accurate alignment possible. It will make sure the information is processed through additional best fit least squares methods.
Marker: If the part is very symmetrical, location marking stickers can be placed on the object to aid in alignment. With this option selected, FlexScan3D will only try to align based on sticker location.
We recommend that you start with Mesh Geometry, then later in the combine feature, Fine Alignment is applied automatically.
Combine
Combine
Now that there are multiple scans you can combine them together. This allows you to export all of the scan information needed as a single file. First select multiple scans by clicking the first thumbnail, holding shift, and clicking the last one. All of the scans in between will be selected. Then press the combine button. This action will perform a Fine Alignment first, to bring all of the scan selected into a tighter and more accurate alignment. Then it will stitch the information together to create a single uniform scan. This process averages out the information to eliminate "thin wall information". The final result is a single surface that represents information of all the included scans. If this process is rejected and does not complete, it means either the scans are not aligned properly or the scanner needs to be recalibrated.
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