- HELP
- How to use
- Quotation conditions settings
- [FA Turning] Quotation Settings
- Set datum and geometric tolerances
Set datum and geometric tolerances
How to set datum
STEP１
Select 
from the icons at the top.
It can also use the shortcut key (Shift＋G) to select it.
STEP2
Select the surface for which needs to be set the datum.
The target area will be highlighted.
Only turned surfaces and end faces can be selected. (Cannot be selected for pockets, holes, or keyways.)
In addition, when a geometric tolerance is specified on a threaded feature, it is applied to the measured value of the feature before threads are machined.
Caution
If the surface is not selectable, the “Not Selectable” icon will be displayed when the mouse hovers over it.
STEP3
Select the datum symbol and click "Update".
Tip
- Click the “Geometric Tolerance Settings” button to proceed to the settings.
- *The settings up to this step will be temporarily saved.
- Reference>>>How to set geometric tolerance STEP2
Caution
– The following five letters of the alphabet are not displayed.- I: To be mistaken for the number 1
- O: To be mistaken for the number 0
- Q: To be mistaken for the number 9
- V: To be mistaken for the letter U
- T: To be mistaken for the geometric tolerance ⊥ (squareness)
- N: To be mistaken for the number 2 or the letter Z when it is placed vertically
- Z: To be mistaken for the number 2 or the letter N when it is placed vertically
STEP4
Once a datum symbol is set, the datum symbol can be seen on the screen and in the tree view.
How to set geometric tolerances
STEP１
Select 
from the icons at the top.
It can also use the shortcut key (G) to select it.
STEP2
Select the surface which needs to be set the geometric tolerances.
The target area will be highlighted.
Only turned surfaces and end faces can be selected. (Cannot be selected for pockets, holes, or keyways.)
In addition, when a geometric tolerance is specified on a threaded feature, it is applied to the measured value of the feature before threads are machined.
Caution
If the surface is not selectable, the “Not Selectable” icon will be displayed when the mouse hovers over it.
STEP3
Select a geometric tolerance symbol and tolerance value.
Tolerance values that can be entered are as follows.
| Icon | Flat surface | Cylindrical face | Datum | |
|---|---|---|---|---|
| Flatness |  |
〇 | – | – |
| Parallelism |  |
〇 | – | Required |
| Perpendicularity |  |
〇 | 〇 | Required |
| Circularity |  |
– | 〇 | – |
| Concentricity |  |
– | 〇 | Required |
| Straightness |  |
– | 〇 | – |
| Cylindricity |  |
– | 〇 | – |
| Circular runout |  |
– | 〇 | Required |
| Total runout |  |
– | 〇 | Required |
Tip
- You can specify a new datum by clicking the “Set Datum” button in the lower left corner, even if you have not completed datum settings.
- *The settings up to this step will be temporarily saved.
STEP4
If you need symbols for geometric tolerances and tolerance values, click the "Update" button after completing the selection of datum.
Tip
- If you press the “Select next surface” button without pressing Update, you can set a new geometric tolerance on another surface.
- *The settings up to this step will be temporarily saved.
STEP5
After updating the geometric tolerance settings, you can see the geometric tolerance symbol on the screen and tree view.
How to delete datum / geometric tolerances
STEP１
Select 
from the icons at the top.
It can also use the shortcut key (D) to select it.
STEP２
The message "Click on delete settings" is displayed. Select the geometric tolerance/datum which you want to delete.
The corresponding geometric tolerance/datum will glow blue.
It will be deleted when you click it.
Caution
Please note that clicking the “Delete all settings” button will delete all settings you have defined.