Hole: Options and Results - By Screw Size

Use this option to populate the available screw standards and sizes with data in Cimatron's thread list, which is stored in the system data/threads.csv file.

Simple Hole

Define the shape of the head of hole. For each type of hole selected, set the appropriate parameters.

The dropdown options are: Simple Hole (for holes without heads), Counterbore – Cap Screw, Countersink – Cap Screw, and Counterdrill – Cap Screw holes:

Images of each hole type:Images of each hole type:

Simple Hole:	Counterdrilled:



Counterbored:	Countersunk:

Standard

Select the thread standard to use in the hole.

Simple holes	Counterbore – Cap Screw, Countersink – Cap Screw, and Counterdrill – Cap Screw holes

The thread standard associated with each option are shown below:

Simple holes	Counterbore – Cap Screw, Countersink – Cap Screw, and Counterdrill – Cap Screw holes
M - ISO Metric M(F) - ISO Metric Fine G - BSPP (British Standard Pipe Parallel thread) UNC - Unified Coarse UNF - Unified Fine NPT - National Pipe Taper R - BSPT (British Standard Pipe Taper thread)	M - ISO Metric M(F) - ISO Metric Fine UNC - Unified Coarse UNF - Unified Fine

Thread size

Select the thread size from those available for the selected thread standard.

Delta

Select a setting to define the hole depth from the dropdown list:

Simple holes	Counterbore – Cap Screw, Countersink – Cap Screw, and Counterdrill – Cap Screw holes

Delta	Enter the depth value and the hole diameter (Simple hole shown). Example:Example: The parameters explained here are for the Delta option, as these parameters cover the other options as well.
To Reference	Choose the plane or face at which the holes will end (selected plane highlighted in red). Example:Example:
To Closest	The holes will stop at the closest face. Example:Example:
Through	The holes will proceed through the entire solid object. Example:Example:
Diameter Factor	Visible when Simple Hole is selected. Select from the available options; 1X, 1.5X, 2X, 2.5X, 3X. The hole depth is then calculated by multiplying the selected value by the nominal thread diameter plus 0.5 of the nominal hole diameter (to allow for machining). Example:Example:

With Thread

Visible when:

Simple Hole is selected

Create a threaded simple hole. Toggle the option to Without Thread for a simple hole with the correct tap drill size.

To Full Diameter

Visible when:

Delta is selected
Flat bottom is not selected

Select an option to define the point at which the hole delta is measured.

The points defined by the two options are shown below:

a) To Full Diameter

b) To Drill Tip

Drilled Bottom

Visible when:

Delta or Diameter Factor is selected

Select an option to define the shape of the bottom of the hole.

Drilled Bottom

Define a drilled bottom for the hole bottom.
Example:Example:

For Drilled Bottom you must specify the Bottom Angle.

Also, an additional parameter is displayed: To Full Diameter / To Drill Tip.

Flat Bottom

Define a flat bottom for the hole bottom.
Example:Example:

Ball Bottom

Define a ball bottom for the hole bottom.
Example:Example:

When the Ball Bottom toggle option is selected, an additional parameter is displayed: To Full Diameter / To Drill Tip.

Bottom Angle

Visible when:

Delta and Drilled Bottom is selected
Simple Hole > Diameter Factor and Drilled Bottom is selected

You can adjust the bottom angle by selecting any value between 0 and 180 degrees.

a. Bottom Angle

Normal Fit

Visible when:

Counterbore – Cap Screw, Countersink – Cap Screw, or Counterdrill – Cap Screw is selected
(Simple Hole is not selected)

The fit can configured for countersunk, counterbored, and counterdrilled holes (fit values obtained from the threads.csv file). Select from Normal, Close, and Loose.

Extra Head Depth

Visible when:

Counterbore – Cap Screw, Countersink – Cap Screw, or Counterdrill – Cap Screw is selected
(Simple Hole is not selected)

The depth at which the head of counterbored and counterdrilled holes is recessed below the surface can be increased or decreased from the system value (obtained from the threads.csv file) by the specified amount.

Countersunk holes do not have a default value; This value can be positively adjusted to increase the Head Diameter value - negative values are not permitted for countersink holes.

Invert Active Object

Use the Invert Active Object option as required. This parameter is available only for open objects and deals with issues of object direction.

Optional Step 1

Change the active object. This option is only available in the following cases:

when creating a feature. The option is not available when editing a created feature.
if there is more than 1 object in the active part.

A toggle parameter is displayed; Keep Original Active Object / Activate Selected Object.

Keep Original Active Object	Keep the active object originally used in the function. This is the default option.
Activate Selected Object	Change the active object to the selected object. Pick an object as required.

When you have set the diameter, depth, and head parameters (Counterdrilled, Counterbored, and Countersunk holes), click OK or Apply in the Feature Guide to complete the function.

When completed, the Hole feature will appear in the Feature Tree as follows:

Some functionality may be dependent on the product package. Contact your Reseller if you require a license.