VTube-LASER and True Position
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HOW VTUBE-LASER CALCULATES GD&T TRUE POSITION
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VTube-LASER actually shows the "spherical radius true position" values in more than one place in the Inspection Data. |
Tangent Point Deviations: Spherical Radius True Position
| The TANGENT POINT and MIDPOINT deviations along the centerline are the equivalent of spherical radius true position values. The deviations shown in the Tangent grid in the Inspection Data menu show these deviation values (Tangent-Midpoint-Tangent along each straight). |
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| The master centerline includes tangent points and midpoints along the centerline. |
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| The aligned tangents and midpoints can be compared to the master points. |
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| The deviation from master tangents and midpoints is a true 3D distance - which means that they are spherical radius true position deviations. |
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Intersection Point 3D Deviations: Spherical Radius True Position
| The 3D deviations for the XYZ centerline end and intersection points are also the equivalent of spherical radius true position values. The 3D deviations shown in the XYZ grid in the Inspection Data menu show these deviation values. |
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Values
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The T1 and T2 TRANSLATE values control the influence that tangent 1 or tangent 2 have in each straight. This is a translation influence - which means it controls the influence along the X, Y, and Z axes without reference to any twisting motion for the alignment. The STRAIGHT VECTOR values allow each straight to have more or less influence with rotational or angular alignment - like a twist. (Twist in alignment is also referred to as "transformation" - which is distinct from "translation".
See the T1 and T2 TRANSLATE for "translation.)
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Popup Menu
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As of 2.9.17, VTube also includes a popup menu to make changing the values easier. |
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Other Pages
- Back to VTube-LASER
- Back to VTube Software Updates (for LASER Mode)
- See also VTube-STEP
- See also VTube-STEP Revisions
- See VTube-LASER Customer Support Page to download the latest version.
- See the tutorial on DCF - Dual Cylinder Fit
- See the tutorial on DCP - Diameter Cut Planes
- See VTube-LASER Cut Planes
- See How to Measure Tubes Attached to an Evaporator with the DCP Feature
