Applies to: DentalCAM 8.10

Marking and deleting cavities

This procedure belongs to step 5 of the simple nesting workflow.

This procedure belongs to step 8 of the complete nesting workflow.

If an object contains an unrecognized or incorrectly recognized cavity, you must manually mark it via the corresponding editing function. Otherwise, the object will not be machined correctly.

Open the Nesting view for adjusting objects with the following icon in the main icon bar:
Check all cavities of all objects in your blank for proper marking.  Checking drilling ranges and cavities for proper marking

Deleting and marking cavities in the nesting view for adjusting objects

Marking cavities

(Optional) Select the desired object in the blank display.

DentalCAM highlights the object in the object list with a colored border.

Open the editing functions for the required object by selecting the following icon in the left column:

The icon bar for the editing functions is displayed.

Open the editing function for marking cavities by selecting the following icon:

Opening the editing function for marking drilling ranges (icons marked orange)

The icon bar for marking cavities displays.

Icon bar for marking cavities; follow the workflow from left to right

Icon for starting the workflow
Icon for marking the prep-line
Icon for adjusting the machining angle
Icon for completing the workflow

If the object has any incorrectly marked cavities, delete them.
Start the workflow by selecting the following icon in the left column:
Click in the center of the cavity you want to mark.

DentalCAM tries to detect the prep line of the cavity and marks it with black dots.

Some dots may lie outside of the prep-line because DentalCAM couldn’t recognize all parts of the prep-line correctly. You will have to manually correct these errors.

Continue by selecting the following icon in the left column:
Activate or deactivate the placement aid by selecting the following icon (marked orange):

Icon for activating or deactivating the placement aid (marked orange)
- Icon when the placement aid is activated:
- Icon when the placement aid is deactivated:

If the placement aid is activated, the dots will snap to the prep-line.

Drag all outliers to the prep lineSelect and hold an outside point and drag it to the prep line of the cavity. Do this with all outliers until the prep-line is fully marked with dots.

Marked prep-line of a cavity with several outlying points

A correctly marked prepline

Continue by selecting the following icon in the left column:
5-axis machines only: If the opening surface of the cavity is not parallel to the blank surface, correct the machining angle. As a result, the machine increases the angle of attack of the rotational axis and compensates for the alignment of the object in the STL file.

Rotate the object with the following value bars:
- RX: Rotate around the X-axis.
- RY Rotate around the Y axis.
The STL file remains unchanged. You must correct the machining angle for every affected cavity.

Object with improper orientation for milling out cavities; part which the tool cannot reach indicated by the arrow

Object with corrected machining angle for milling out cavities

Finish the workflow by selecting the following icon in the left column:

DentalCAM colors the cavity in green and adds it to the list of cavities in the left column. The application assigns a sequential number to the cavity.