Table processing and reference line parameters are used during the polishing process:
| Table Processing Parameters | Reference Line Parameters |
|---|---|
| |
| Plane A goes through the point of the scan table farthest from the solution table and is parallel to the solution table. | C8 reference plane ("line") - crown main facets reference plane. |
| P8 reference plane ("line") - pavilion main facets reference plane. | |
| New scan table is parallel to the solution table and positioned differently depending on conditions (see Grind depth calculation in the detailed description). | |
Table Processing Parameters
| Parameter | Description | Comment | |
|---|---|---|---|
| Table allowance before | mm | How much should we grind parallel to the solution table to reach it - measured before grinding started. | See the detailed description below. |
| Grind depth | mm | How much should we grind parallel to the solution table to reach a new scan table - the one used to set a stone on for bruting. | |
| Table allowance parallel | mm | Distance between new scan table and solution table. | |
| Table incline | deg. | Planned table tilt compared to the current holder plane. |
How much should we grind parallel to the solution table to reach it - measured before grinding started.
Calculation
By finding the distance between Plane A and solution table, where:
- Plane A goes through the point of the scan table farthest from the solution table and is parallel to the solution table.
Usage and Examples
Information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
Print Label | NA | Single value | mm | FACETING_TABLE_CUT_DEPTH | Table allowance |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
How much should we grind parallel to the solution table to reach a new scan table - the one used to set a stone on for bruting.
Calculation
By finding the distance between Plane A and New scan table, where:
- Plane A goes through the point of the scan table farthest from the solution table and is parallel to the solution table.
- New scan table is parallel to the solution table and goes:
- through the point of the scan table nearest to the solution table - if this nearest distance is positive (that is when fully grind the existing scan table, the solution is not touched);
at the distance of 20 µm from the solution table - if this nearest distance is negative (that is when fully grind the existing scan table, the solution is broken);
through solution table itself - if the maximum distance between the initial scan table and solution table is less than 20 µm (and nearest negative).
Usage and Examples
Information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
Print Label | NA | Single value | mm | FACETING_TABLE_CUT_DEPTH | Table allowance |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
Distance between the new scan table (the one used to set a stone on for bruting) and solution table.
Calculation
By finding the distance between the New scan table and solution table, where:
- New scan table positioning is described in the Grind depth parameter.
Usage and Examples
Information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
Print Label | NA | Single value | mm | INFORMATION WILL BE PROVIDED SOON | NA |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
Planned table tilt compared to the holder plane.
Calculation
NA
Usage and Examples
Information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
| Print Label | Single value | deg | FACETING_TABLE_INCLINE | Table incline |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
Reference Line Parameters
| Parameter | Description | Comment | ||
|---|---|---|---|---|
| C8 before | mm | Distance to C8 reference line before grinding from New scan table. | Calculated after the scan is bruted. | See the detailed description below. |
| C8 after | mm | Distance to C8 reference line after solution table is reached (that is, distance to C8 reference line from solution table itself). | ||
| P8 before | mm | Distance to P8 reference line before grinding from New scan table. | ||
| P8 after | mm | Distance to P8 reference line after solution table is reached (that is, distance to P8 reference line from solution table itself). |
Distance to C8 reference line before grinding from New scan table.
Calculated after the scan is bruted.
Calculation
Calculated after the scan is bruted by finding the distance between New scan table and C8 reference plane ("line"), where:
- New scan table is parallel to the solution table and positioned differently depending on conditions (see Grind depth calculation in the detailed description).
- C8 reference plane ("line") is a crown main facets reference plane.
Usage and Examples
C8 reference line information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
Print Label | NA | Single value | mm | INFORMATION WILL BE PROVIDED SOON | C8 before |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
Distance to C8 reference line after solution table is reached (that is, distance to C8 reference line from solution table itself).
Calculated after the scan is bruted.
Calculation
Calculated after the scan is bruted by finding the distance between C8 reference plane ("line") and solution table, where:
- C8 reference plane ("line") is a crown main facets reference plane.
Formal definition:
FACETING_REFERENCE_LINE_CROWN_MAINS_AFTER_TABLE = CROWN_HEIGHT_MAX_MM
Usage and Examples
C8 reference line information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
Print Label | NA | Single value | mm | FACETING_REFERENCE_LINE_CROWN_MAINS_AFTER_TABLE | C8 after |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
Distance to P8 reference line before grinding from New scan table.
Calculated after the scan is bruted.
Calculation
Calculated after the scan is bruted by finding the distance between New scan table and P8 reference plane ("line"), where:
- New scan table is parallel to the solution table and positioned differently depending on conditions (see Grind depth calculation in the detailed description).
- P8 reference plane ("line") is a pavilion main facets reference plane.
Usage and Examples
P8 reference line information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
Print Label | NA | Single value | mm | INFORMATION WILL BE PROVIDED SOON | P8 before |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
Distance to P8 reference line after solution table is reached (that is, distance to P8 reference line from solution table itself).
Calculated after the scan is bruted.
Calculation
Calculated after the scan is bruted by finding the distance between P8 reference plane ("line") and solution table, where:
- P8 reference plane ("line") is a pavilion main facets reference plane.
Formal definition:
- Find the pavilion facet with the highest height, let us say its number is F
- Marking for Pav, mm = CROWN_HEIGHT_MM_<F> + GIRDLE_WIDE_BEZEL_MM_<F>
Usage and Examples
P8 reference line information is used during grinding.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
Print Label | NA | Single value | mm | FACETING_REFERENCE_LINE_PAVILION_MAINS_AFTER_TABLE (P8 after) | P8 after |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| NA | NA | NA | NA | NA | Not presented in any appraiser. |
These parameters are presented in the Print Label report:
