Machine technical documentation Operational document

DOC3.4 SLAB WORKING PARAMETERS

When the “Slab Parameters” panel is opened, the working parameters screen is displayed, allowing the operator to manage working data.
Working data can be set and edited using the parameters panel.

Selected material management

At the top of the “slab working parameters” panel are several elements for managing materials:

The elements that make up this section of the slab working parameters are described below.

	Selected Material Displays the name of the currently selected material.
	Create new material button Pressing this button opens a window for creating a new material. The corresponding window is shown below.
	Button open Materials Management panel Pressing this button opens a window for managing the available materials. The corresponding window is shown below.
	Selected material thickness The value in this field shows the thickness of the selected material. This value is essential for all calculations performed by the program.

Add a new material

This small graphical window allows the name of a new material to be entered:

If creation of the new material is confirmed, it is selected automatically.
The material parameters and thickness are updated accordingly.

Open materials management panel

Materials can be managed from this panel:

	Search bar The text bar immediately to the right of this icon can be used to apply search filters based on the names of the available materials.
	Remove filter This button is enabled only after a filter has been applied; pressing it removes the applied filter.
	Remove material This button deletes a material from the list. A material can be deleted only if it is not the currently selected material (this is visible and highlighted in the first image in this section). An additional confirmation pop-up allows the material to be deleted.
	Duplicate material This button duplicates the material selected in the list and its corresponding parameters.
	Edit Material This button edits the parameters of the material selected in the list.

Working type selection

The selected working type controls the contents of the parameter management window.

For each working type, the corresponding preview shows the selected increment mode, the forward cutting speed (plunge / entry speed for the Hole working type), and the tool diameter.

Pass type

	Full Pass Full Pass performs the entire working in a single pass. The tool therefore enters the full depth of the material immediately and performs the working.
	Step / spiral pass These passes do not enter the material to full depth immediately, but gradually. This means that the working is performed several times at different heights until the bench quote (end of material) or the selected height is reached.

Working types

Linear

Full pass

Step pass

Increment parameter description

	Forward Indicates the cutting depth in the material when the machine cuts in the direction of disk rotation.
	Back Indicates the cutting depth in the material during the cutting phase in the direction opposite to the tool direction.
	Last Step Indicates the cutting depth of the last tool pass through the material. This cut is always in the direction opposite to the disk movement.

Speed parameter description

	Plunge Determines the speed during the tool penetration phase into the material. This value is expressed in millimetres per minute.
	Forward Indicates the desired speed for the forward cutting phase. This value is expressed in millimetres per minute.
	Back Indicates the desired speed for the return cutting phase. This value is expressed in millimetres per minute.
	Last Step Indicates the speed the machine must maintain on the cut during the last pass. This value is expressed in millimetres per minute.
	Acceleration cuts If this parameter is set to a value greater than zero, the disk rotation speed is progressively increased from the start of the cut up to the specified distance. The rest of the cut is then performed at full speed.
	Slow down cuts If this parameter is set to a value greater than zero, the disk rotation speed is progressively reduced starting from the set distance from the end of the cut until the end of the cut.

NOTE

With regard to increments and speeds, the “Back” and “Last” parameters may both be present, neither may be present, or only one of the two may be present.
These choices are normally made when the program is installed and are determined according to the customer's working requirements.
These options can be changed if a different working method is preferred by contacting Donatoni Assistance.

Arc

Step pass

Miter cut

Full pass

Step pass

Increment parameter description

Cut with probing (enabled / disabled)
If enabled, before the miter cut is executed, two measurements are taken with the slab probe at the ends of the required cut and their average is calculated.
This value is used while machining the miter cut.

Milling

Full Pass

Step pass and spiral pass

Hole

Full pass

Step pass

Executing a working with step pass:

The machine approaches the material at maximum speed until it reaches the distance from the material specified in the APPROACHING parameter.
The number of steps is calculated as:
- Material thickness divided by step thickness
  - rounded up if necessary
The machine starts moving at working speed.
- If the ENTRY STEP parameter is set (different from and greater than zero), the machine works at the speed set in the second ENTRY field until the distance set in the ENTRY STEP field is reached.
The machine executes the steps calculated in the second point at the Step speed.
After each step (including the first), the machine returns to the material position at maximum speed, then returns at maximum speed to a short distance before the start of the next step.
If the EXIT STEP parameter is set (different from and greater than zero), the machine works at the speed defined in the second STEP field until the distance defined in the first EXIT field is reached.
- The remainder of the step is performed at the EXIT speed.

Description of Hole parameters with step pass

	Approach position The machine approaches the material at maximum speed until it reaches the distance from the material set in this parameter. From this point, the core drill starts moving at working speed.
	Step These parameters define the working step thickness and working speed. The number of working steps is also calculated based on the working step thickness and the material thickness. For example, for a material thickness of 20 mm, if the user sets the parameter to 3 mm, the hole is made in 7 steps.
	Way in If this value is set to a value other than 0, an interval is defined starting from the first step and, if applicable, for subsequent steps, during which the machine works at a speed different from that defined in “STEP”.
	Exit If this value is set to a value other than 0, an interval is defined starting from the last step and, if applicable, for previous steps, during which the machine works at a speed different from that defined in “STEP”.
	Pause after If this parameter is enabled, the machine pauses after each hole is completed to allow the operator to check for any material residue trapped inside the tool. The operator must press the START button again to allow the program to continue.

Change of cutting parameters

The parameters previously described for the disk, milling cutter and core drill can be changed if the user is authorised to use them.

To select the tool whose parameters are to be changed, press one of the buttons visible on the right side of the “Select tool” panel.

Change cutting parameters
Provides access to the screen for changing the cutting parameters of the selected tool.

Pressing this button displays a window containing a saved parameter configuration for each available material. The results also depend on the selected working type.

A “Change Cutting Parameters” window similar to the following example image is opened:

At the bottom left of the “Change Cutting Parameters” panel is an initially empty text bar that can be used to apply a search filter.
The button to the right of the bar is enabled only when text is present in the bar and a search filter is therefore applied. Pressing it clears the filter and the text bar.

Bottom bar

The bottom bar of the Slab Parameters panel appears similar to this:

This bar consists of the following elements:

	Disk preview Displays the disk tool currently mounted on the machine.
	Milling cutter/hole preview Displays the milling cutter or core drill tool currently mounted on the machine.
	Tool Panel Pressing this button provides direct access to the Tool Panel.