Boss Thread
The BossThread tool is used to Boss Thread on the shaft part. This dialog box is displayed every time you drop the BossThread tool on the part or when you edit an existing BossThread.
The BossThread can be placed only on cylindrical parts, drop the tool on an circular edge or face (otherwise you will be shown a warning message).
Settings
The items included in this box enable you to save the current setting of the BossThread. This enables you to recall them quickly in future sessions. The buttons included in this section enable you to save, remove or apply any saved setting.
Components
You can change the type of Boss Thread by clicking a drop down button Normative (Standard, GAS, NPT mm and inch).
Parameters
When you change the type of the Boss Thread, the dialog box updated the value text box.
- Diameter - This label shows the measured diameter shaft, if you check the box Man., you can change it. In other cases is used to select the required diameter for the Boss Thread.
- Total Length - This option is used to insert or to select the length of the Boss Thread (including the length of the run-out). With the option at right you can see the measurement in inches or millimeters.
- Taper Angle - This option shows the draft angle of the BossThread.
- Create Run-Out - If checked let you create an run-out.
- Diameter - This option is used to select the required diameter for the Run-Out.
- Length - This option is used to insert or to select the length of the Run-Out.
- Pitch - This option shows the Thread Pitch of the BossThread. To enable this item, you have to check the Edit option.
- Chamfer - This combo let you select if you want create a chamfer at top of bossthread.
- Thread Mode - This combo let you select at right or left for the thread.
- Callout - If you want assign the callout in the 2D drawing, check this option.
The data structure behind BossThread
Every component defined in the User Interface has behind him some data files which contain properties and parameters related to the component itself. These files are placed in the folder of the standard rule. The main files associated to the family of components are the followings: BossThread.ini and *.dat
Every record contains these fields:
- Name -> Component name that appears in the combo Normative
- DataFile -> File containing the data values useful to build the component
- Callout -> Prefix to be assigned to the callout
- 0=MM 1=Inches -> unit of measure
- RunOutFile -> File containing the data values useful to build the runout
This is the structure of a BossThread.ini
## ============================================================================
## * IRONPROXT - PARAMETRIC LIBRARY - Fronema Srl *
## ============================================================================
#
# Name | Data File |Callout| 0=MM 1=Inches | RunOutFile
Standard | ThreadDiameters.dat | M | 0 | RunOut.dat
GAS | GASThreadDiameters.dat | G | 0 |
NPT_IN | NPTDiameters.dat | NPT | 1 |
NPT_MM | NPTDiametersMM.dat | NPT | 0 |The *.dat files, contain the fields of the standard values related to Boss Thread normative; the structure of the files are self-explaining.
This is the structure of a NPTDiameters.dat
## ============================================================================
## * IRONPROXT - PARAMETRIC LIBRARY - Fronema Srl *
## ============================================================================
##
## NPT Thread Diameters
##
## separator field is TAB
## Units are in inches
##
## Outsider_Diam NominalSize Pitch1 Pitch2 Length Taper Angle
0.383 1/8 0.03571 0 0.15630 1.79
0.518 1/4 0.05262 0 0.23661 1.79
0.656 3/8 0.05262 0 0.25000 1.79
0.825 1/2 0.05262 0 0.32126 1.79
1.041 3/4 0.07143 0 0.37520 1.79
...
...