600-0034

Access Tool Table

Press MOD key, select 'Tool table' from the TNC menu to open tool.t table and verify tool number exists.

Use CTRL+F to quickly search for specific tool numbers in large tool tables.

Verify Tool Type Definition

Check that the tool type (T-TYPE column) is properly defined with valid cutting material designation (e.g., HSS, CARBIDE, CERAMIC).

Ensure tool type matches actual physical tool to prevent cutting parameter errors.

Define Missing Tool Parameters

Enter correct tool type, diameter, and cutting material in the tool.t table, then save changes with ENT key.

Copy parameters from similar existing tools to maintain consistency.

Access Cutting Data Management

Navigate to MOD menu > 'Cutting data' to access the cutting data database and verify material combinations exist.

Check both workpiece material and cutting tool material are defined in the database.

Verify Material Combination

Confirm that the specific workpiece material and cutting tool material combination has defined cutting parameters (Vc, fz values).

Missing cutting data can result in inappropriate machining parameters if manually overridden.

Add Missing Cutting Data

Create new cutting data entries for the material combination or import manufacturer's cutting data files via CF card or network.

Contact tool manufacturer for optimized cutting data files compatible with Heidenhain format.

Backup Current Files

Create backup of tool.t and cutting data files to CF card before attempting repairs via File Manager in MOD menu.

Always backup before file repairs to prevent complete data loss.

Check File Integrity

Use TNC File Manager to verify tool.t file can be opened and displays properly without error messages or corrupted entries.

Look for unusual characters or incomplete lines that indicate file corruption.

Restore from Backup

If corruption is confirmed, restore tool.t and cutting data files from most recent backup or recreate critical tool definitions manually.

Implement regular automated backups to prevent future data loss issues.

Check Program Material Code

Review NC program header or MATERIAL definition to verify the material code matches database entries exactly.

Material codes are case-sensitive and must match database entries precisely.

Verify Database Material List

Access cutting data database and confirm the specified material code exists in the workpiece materials list.

Similar material names with different codes will not cross-reference automatically.

Correct Material Assignment

Either modify the program material code to match database entries or add the new material to the cutting data database.

Standardize material codes across all programs to prevent recurring issues.