Difference between revisions of "Recommended VTube-LASER Laser Scanner Settings"

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__NOTOC__
 
__NOTOC__
  
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===Page Revision Date: December 24, 2015===
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==Ideal Setup for the HD (Version 6) Blue Laser Scanner in VTube-LASER==
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 +
 +
<table>
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<tr>
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<td width=300>
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The FARO ScanArm HD blue laser scanner has significantly increased capabilities compared to earlier FARO scanners.<br><br>
 +
Because of that, it requires different setup recommendations for the FARO Laser Line Probe Control window.  These settings work very well in VTube-LASER ''specifically'' for the HD scanner.<br><br>
 +
'''VTube-LASER be connected to a FARO arm to perform these steps.'''
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</td>
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<td>
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[[image:FARO_HD6_Scanner.png|500px]]
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</td>
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</tr>
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</table>
  
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==Ideal Setup for HD Scanner==
 
  
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The HD blue line scanner has increased capabilities in point density that causes us to recommend some unique settings in FARO scanner setup.  These settings work very well in VTube-LASER.<br><br>
 
  
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'''You must be connected to a FARO arm to perform these steps.'''
 
 
<table>
 
<table>
  
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<td width=300>
 
<td width=300>
 
===STEP 1===
 
===STEP 1===
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In VTube-LASER window click on '''Scanner Algorithm''' label above the viewport window.<br><br>
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In VTube-LASER window click on Scanner Algorithm label above the viewport window.</td>
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This loads the '''FARO Laser Line Probe Control''' window.<br><br>
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The alternative way to get into the FARO Laser Line Probe Control window is to click on '''Measure Setup''' in the '''Navigation Pane''' > '''Arm tab''' > '''Scanner Control''' button.</td>
 
<td>
 
<td>
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[[image:vtube-laser_v2.2_leftmouseclick_scanneralgorithm_label.png|400px]]
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[[image:vtube-laser_v2.2_leftmouseclick_scanneralgorithm_label.png|500px]]<br>
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[[image:vtube-laser_v2.2_leftmouseclick_scanneralgorithm_label_closeup.png|500px]]<br><br>
 
</td>
 
</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td width=300>
 
<td width=300>
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===STEP 2===
 
===STEP 2===
 
'''Set the Scan Rate to 1/1.'''<br>
 
'''Set the Scan Rate to 1/1.'''<br>
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* This value will allow the laser stripes to come into VTube-LASER as quickly as the driver can send them.<br><br>
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* This value will allow the laser stripes to come into VTube-LASER as quickly as the FARO driver can send them.<br><br>
 +
 
 +
===STEP 3===
  
 
'''Set the Scan Density to 1/16'''<br><br>
 
'''Set the Scan Density to 1/16'''<br><br>
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* This value will reduce density of the points in the laser line. Since VTube-LASER removes some of points with a "points per stripe limit" filter, it works faster if the FARO driver removes some of those points in advance.  Both scanning and calculation can be many times faster.
+
* This value will reduce density of the points in the laser line returned to VTube-LASER.<br><br>
 +
* VTube-LASER removes some of points with two separate algorithms. First it uses a '''Maximum Number of Points Allowed in Cylinder Laser Stripe''' filter. Second it removes any points that are unnecessarily close to other points.  So it works faster if the FARO driver removes some of those points in advance.  Both scanning and calculation can be many times faster when the Scan Density is reduced to anything less than 1/1.
 
</td>
 
</td>
 
<td>
 
<td>
−
[[image:vtube-laser_v2.2_farol_llp_scan_rate_density.png|400px]]
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[[image:vtube-laser_v2.2_farol_llp_scan_rate_density.png|500px]]
 
</td>
 
</td>
 
</tr>
 
</tr>
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<td width=300>
 
<td width=300>
  
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===STEP 3===
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===STEP 4===
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Select the correct ball probe then press OK.<br><br>
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As of early 2017, we tend to prefer to use '''Automatic - HDR''' (High Dynamic Range) for as many materials as possible. According one of the top technicians at FARO, this is an acceptable approach for VTube-LASER because we are not scanning dense point clouds like other programs do.  (We use 1/16 for scan density with the HD scanner.)<br><br>
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This step will cause the FARO driver to report back to VTube the new probe. The FARO driver should always remember the last ball probe that you set to "Current Probe" in the pulldown box.  This is true even if you shutdown VTube-LASER and the FARO arm.</td>
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If you are scanning in a room with sunlight coming through the windows - then be sure to use the HDR mode because it is better able to adapt to sunlight and shadow.<br><br>
 +
The only time to change it to '''Automatic - Normal''' is when that mode gives better coverage of points on dull or blasted material.<br><br>
 +
</td>
 
<td>
 
<td>
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[[image:vtube-laser_v2.2_faro_compensation_menu.png|400px]]
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[[image:vtube-laser_v2.2_farol_llp_scan_algorithm.png|500px]]
 
</td>
 
</td>
 
</tr>
 
</tr>
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<tr>
 
<tr>
 
<td width=300>
 
<td width=300>
  
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===STEP 4===
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===STEP 5===
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Press the Close button in the FARO Arm Utilities window.</td>
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'''Uncheck''' the '''Reflection Filter''' option.<br><br>
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 +
* The FARO reflection filter makes FARO stop returning points when the scanner is moving, so scanning seems to stop and start even with the green button pressed.<br><br>
 +
* There doesn't seem to be significant benefit for tube scanning with this filter on - and VTube will remove spiked outliers automatically with the spike filter - so this filter is redundant.
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 +
</td>
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<td>
 
<td>
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[[image:vtube-laser_v2.2_armutilities_dialog_press_close.png|400px]]
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[[image:vtube-laser_v2.2_faro_llp_scan_reflectionfilter.png|500px]]
 
</td>
 
</td>
 
</tr>
 
</tr>
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<tr>
 
<tr>
 
<td width=300>
 
<td width=300>
  
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===STEP 5===
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===STEP 6===
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Observe that the new ball probe selection will appear in the Arm grid.
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Click on the OK button to exit the FARO Laser Line Probe window.<br><br>
 +
This completes the setup.
 
</td>
 
</td>
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<td>
 
<td>
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[[image:vtube-laser_2.2_measuresetup_menu_6mmball.png|400px]]
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[[image:vtube-laser_v2.2_farol_llp_scan_clickOK.png|500px]]
 
</td>
 
</td>
 
</tr>
 
</tr>
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</table>
 
</table>
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<br>
 
  
 
==Other Pages==
 
==Other Pages==
  
 
*Back to the [[VTube-LASER]] page
 
*Back to the [[VTube-LASER]] page

Latest revision as of 02:10, 22 April 2017

Vtube-laser logo 1.96.png

Vtl screen hd scanner without logo.png


Page Revision Date: December 24, 2015

Ideal Setup for the HD (Version 6) Blue Laser Scanner in VTube-LASER

The FARO ScanArm HD blue laser scanner has significantly increased capabilities compared to earlier FARO scanners.

Because of that, it requires different setup recommendations for the FARO Laser Line Probe Control window. These settings work very well in VTube-LASER specifically for the HD scanner.

VTube-LASER be connected to a FARO arm to perform these steps.

FARO HD6 Scanner.png


STEP 1

In VTube-LASER window click on Scanner Algorithm label above the viewport window.

This loads the FARO Laser Line Probe Control window.

The alternative way to get into the FARO Laser Line Probe Control window is to click on Measure Setup in the Navigation Pane > Arm tab > Scanner Control button.

Vtube-laser v2.2 leftmouseclick scanneralgorithm label.png
Vtube-laser v2.2 leftmouseclick scanneralgorithm label closeup.png

STEP 2

Set the Scan Rate to 1/1.

  • This value will allow the laser stripes to come into VTube-LASER as quickly as the FARO driver can send them.

STEP 3

Set the Scan Density to 1/16

  • This value will reduce density of the points in the laser line returned to VTube-LASER.

  • VTube-LASER removes some of points with two separate algorithms. First it uses a Maximum Number of Points Allowed in Cylinder Laser Stripe filter. Second it removes any points that are unnecessarily close to other points. So it works faster if the FARO driver removes some of those points in advance. Both scanning and calculation can be many times faster when the Scan Density is reduced to anything less than 1/1.

Vtube-laser v2.2 farol llp scan rate density.png

STEP 4

As of early 2017, we tend to prefer to use Automatic - HDR (High Dynamic Range) for as many materials as possible. According one of the top technicians at FARO, this is an acceptable approach for VTube-LASER because we are not scanning dense point clouds like other programs do. (We use 1/16 for scan density with the HD scanner.)

If you are scanning in a room with sunlight coming through the windows - then be sure to use the HDR mode because it is better able to adapt to sunlight and shadow.

The only time to change it to Automatic - Normal is when that mode gives better coverage of points on dull or blasted material.

Vtube-laser v2.2 farol llp scan algorithm.png

STEP 5

Uncheck the Reflection Filter option.

  • The FARO reflection filter makes FARO stop returning points when the scanner is moving, so scanning seems to stop and start even with the green button pressed.

  • There doesn't seem to be significant benefit for tube scanning with this filter on - and VTube will remove spiked outliers automatically with the spike filter - so this filter is redundant.

Vtube-laser v2.2 faro llp scan reflectionfilter.png

STEP 6

Click on the OK button to exit the FARO Laser Line Probe window.

This completes the setup.

Vtube-laser v2.2 farol llp scan clickOK.png

Other Pages

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