Difference between revisions of "How To Calculate Cut Lengths in VTube"

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[[image:VTube-LASER_AssemblyOverModel.png|300px]]<br>
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XYZ Intersection Tolerances<br><br>
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* Back to [[VTube-LASER]]
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== Part Setup Menu ==
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You can calculate the cut length of the tube in the Part Setup menu in either STEP or LASER modes.<br><br>
 
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Right click on the Part Setup menu, and choose  "Calculate Cut Length".<br><br>
 
  
 
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== XYZ Intersection Deviations ==
 
  
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The XYZ intersection tolerances are based on the XYZ deviations as shown in the model in this screen image.<br><br>
 
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In this case, most of the error is in the Y axis.  It can be verified by seeing that the intersection point of the derived data is visually above the master point.  (You can click on the image to make it larger.)  The deviation data indicates that it is exactly 0.012" above the master point in the Y axis.<br><br>
 
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The reason the grid is entirely green is because the tolerance values are higher than the deviation values (in this case the tolerances are 0.039").<br><br>
 
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Note:  The 0.013" value is the 3D deviation from point to point.  Unless it lays on an X, Y, or Z axis, it is usually slightly larger than any of the other values.
 
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[[image:vtube-laser-1.94_closeup_xyz_intersection_model.png|300px]]
 
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== Set the Tolerances in Inspection Data Menu ==
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== Calculating Cut Length in the Part Setup Menu ==
  
 
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You can set these tolerances in two places in VTube-LASER.  The first place is in the Inspection Data menu.<br><br>
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The Cut Length value is a value that can be entered manually or calculated automatically.  Calculate the cut length of the tube in the Part Setup menu in either STEP or LASER modes.<br><br>
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Click on the Change Grid Setup button until you see the tolerances in the grid like we show in the image on the right.<br><br>
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Then select and change any tolerance value.  The grid will allow you to edit only the tolerances.<br><br>
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To calculate the cut length, right click on the Part Setup menu, and choose  "Calculate Cut Length".<br><br>
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[[image:vtube-laser_inspectionresults_overall_xyz_intersection_with_tolerances.png|300px]]
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== Or Set the Tolerances in Expanded Windows ==
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[[image:vtube-1.94_partsetup_popupmenu_alone.png|300px]]
  
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The second place to edit the value is in the VTube-LASER Expanded Window.<br><br>
 
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Click on the Expanded Window button to display the Expanded Window, and then make changes to the tolerances there. <br><br>
 
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The benefit of the Expanded Window is that you can view all the tolerances at the same time.<br><br>
 
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[[image:vtube-laser-1.91-expanded_xyz_intersection_deviation_edit_tolerance.png|300px]]
 
 
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[[image:vtube-laser-1.91-expanded-xyz_deviation_grid.png|300px]]<br>
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[[image:vtube-1.94_partsetup_popupmenu.png|400px]]
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(You can click on the image to see it larger.)<br>
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==Setting All The Tolerances At The Same Time==
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== How to Calculate and Remove Elongation From the Cut Length ==
  
 
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The intersection deviation grids allow you to set the default tolerance to every value in a row, column, or even the entire grid using a popup menu<br><br>
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VTube also uses the Tube Elongation Percentage value to remove anticipated elongation.<br><br>
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To use this feature, single click on a tolerance value, then right click and choose the action in the popup menu.<br><br>
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A typical value is between 3 and 5 (percent).<br><br>
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[[image:vtube-laser-1.93_popup_intersection_closeup.png|300px]]
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The more positive the value the more elongation is removed from the cut length.  For example, "4" removes 4% from all the arc lengths when calculating the cut length of the tube.<br><br>
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See images on the right for an example of changes to the Cut Length before and after calculation when removing 4% from the arc lengths.<br><br>
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Recalculate the Cut Length after the change to the tube elongation percentage for the new value to take effect in the Cut Length calculation.
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[[image:vtube-laser_intersectiondevation_tolerances_popup.png|300px]]
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[[image:vtube-1.94_partsetup_calculated_cutlength.png|400px]]<br>
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[[image:vtube-1.94_tube_elongation_percentage_zero.png|400px]]<br>
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[[image:vtube-1.94_tube_elongation_percentage_four.png|400px]]<br>
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[[image:vtube-1.94_partsetup_calculated_cutlength_after_elongation_removed.png|400px]]<br>
 
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The screen images on the right show an example of before and after changes made to an entire column:<br>
 
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Before
 
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[[image:vtube-laser-1.93_popup_intersection_closeup_beforechange.png|150px]]
 
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==XYZ Intersection +/- Tolerance Values in Printed Reports ==
 
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The XYZ Intersection deviation values can be included in reports:
 
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# plus tolerance values<br>
 
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# minus tolerance values<br>
 
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# out of tolerance values<br>
 
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[[image:vtube-laser-1.91-report_xyz_intersection_deviation_output_full.png|400px]]
 
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The first Inspection Report in the reports menu is good for showing this data.
 
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==Other Pages==
 
==Other Pages==
  
 
* Back to [[VTube-LASER]]
 
* Back to [[VTube-LASER]]
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* Back to [[VTube-STEP]]

Latest revision as of 22:40, 6 February 2018

VTube-LASER AssemblyOverModel.png
Vtube-step logo 2.png

Vtl screen hd scanner without logo.png
VTS2 SplashScreen.png



Calculating Cut Length in the Part Setup Menu

The Cut Length value is a value that can be entered manually or calculated automatically. Calculate the cut length of the tube in the Part Setup menu in either STEP or LASER modes.

To calculate the cut length, right click on the Part Setup menu, and choose "Calculate Cut Length".

Vtube-1.94 partsetup popupmenu alone.png

Vtube-1.94 partsetup popupmenu.png

How to Calculate and Remove Elongation From the Cut Length

VTube also uses the Tube Elongation Percentage value to remove anticipated elongation.

A typical value is between 3 and 5 (percent).

The more positive the value the more elongation is removed from the cut length. For example, "4" removes 4% from all the arc lengths when calculating the cut length of the tube.

See images on the right for an example of changes to the Cut Length before and after calculation when removing 4% from the arc lengths.

Recalculate the Cut Length after the change to the tube elongation percentage for the new value to take effect in the Cut Length calculation.

Vtube-1.94 partsetup calculated cutlength.png
Vtube-1.94 tube elongation percentage zero.png
Vtube-1.94 tube elongation percentage four.png
Vtube-1.94 partsetup calculated cutlength after elongation removed.png


Other Pages

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