Bores, Threads, Countersinks (3-D)

3-D Standard > Standard Processings > Bore/Thr.

Use the functions

• Bores/Threads and
• Copy Standard Processing

to insert bores, threads, thread runouts and countersinks into your drawing.

Bores/Threads

3-D Standard > Standard Processings > Bores/Threads

Use this function to insert new borews, threads or countersinks.

Proceed as follows:

1. Activate the Bores/Threads function.
2. The Settings dialogue window for bores and threads is displayed (if you have not activated the Suppress window option in the settings). Specify the desired settings and choose OK to exit the window. If required, define a processing plane.
3. The catalogue system for bores, threads and countersinks opens. Select the catalogue you want, e.g. threads.
4. Choose the standard series you want by clicking the relevant icon or the list entry, e.g. DIN 103.
5. The right-hand window displays a list of values in which the thread is available. Select the value you want.
6. Choose OK to exit the catalogue system.
7. The Grid menu is displayed. Choose the fitting mode you want and, if required, enter the desired values.
8. Specify the insertion position in the drawing.
9. If desired or available, add further copies of the standard processing.

(1) Thread, (2) Countersink, (3) Thread runout

Representation with thread texture

Please also read the notes on the representation of threads in shaded views.

Notes on thread runouts

For different thread runouts, e.g. according to DIN 76, the Thread runout dialogue window will be displayed after exiting the catalogue system:

The Thread runout dialogue window

In this dialogue you can specify the thread depth and the bore depth. If you want to enter the bore depth explicitly, activate the Free bore depth checkbox and enter the bore depth manually in the corresponding input field.

Alternatively, you can specify the bore depth by activation one of the options Through, Short (standard), Rule (standard), or Long (standard). In this case, the Bore depth input field will be greyed out.

If the Free bore depth checkbox is activated, the additional checkbox Bore depth = Drill bit will be available. If you activate this checkbox, the drill bit will be the end point of the thread runout.

Example: Thread runout with free bore depth: 25

Left: Bore depth = Drill bit; Right: Bore depth = Drill bit

The drill bit, too, can be entered explicitly if desired. Activate the Free point angle checkbox and enter the desired angle in the Point angle input field. If you enter a point angle of 180 degrees, the thread ends in a planar surface.

Example: Thread runout with free point angle

Left: Point angle = 120 degrees; Right: Point angle = 180 degrees)

Please note:

• Once you have inserted a bore, you can transfer this bore to other parts. This is displayed to you in the dialogue line by means of ... (RMB = activate other part). Then press the right mouse button and identify the corresponding part. Note that the same processing plane and hence the same hole direction is used.

• For various threads (e.g. DIN 13), you can choose between regular threads (R) and precision threads (P) in the selection window under Type. If left-handed threads are supported, they can be selected appropriately via LH.
• Before defining the fitting position, you can use the right mouse button to activate a context menu. The functions of this menu enable you to change the fitting direction or the reference point of the standard part.
• In the catalogues for thread standards, internal (KERDI) as well as external core diameters (KERD) are managed. You can specify in the Configuration Editor at System settings > Standard Parts > Core diameter which of these values are to be used as core diameters for threads. You can choose between Bore diameter, Internal thread and External thread. The default setting is Bore diameter, i.e. the bore diameter of the screw starter will be used as the core diameter for threads (in the catalogues: column BORD, e.g. for DIN 13). If you change this setting, please note that the re-calculation of standard processings, boltings etc. in drawings from older HiCAD versions might lead to collisions.

After a new HiCAD installation the new default setting will be Bore diameter. After an update installation from versions older than 2015 (2000.0) the previous default setting will be preserved, i.e. the bolt diameter will be used. If you do not want this, change the settings in the Configuration Editor accordingly.

• For relief grooves acc. to DIN 76 you can specify, besides the thread depth, the bore depth of the relief groove. After selecting the dimensions of the relief groove, an appropriate input window is displayed. Here you can also define the chamfer yourself, by entering the point angle and the length.

Copy Standard Processing

3-D Standard > Standard Processing > Bore/Thread > Standard Processing, Copy

Use this function to copy already existing bores.

Proceed as follows:

1. Select an edge of the bore.
2. Specify the position of the new, copied bore.

This function is also available in the context menu for Standard Processings.

Standard Processings (3-D) • Settings for Bores (3-D) • Repeated Fitting of Standard Parts (3-D)