Applies to: DentalCAM 8.10

Checking drilling ranges and cavities for proper marking

This procedure belongs to step 3 of the simple nesting workflow.

  1. Position your objects horizontally and vertically in the top view.
  2. Rotate your objects about the Z-axis in the top view.
  3. Check if all cavities and drillings are correct.
  4. Specify the drilling range for objects with unrecognized drillings.
  5. Mark the cavities for objects with unrecognized cavities.
  6. Set bars for all objects.

This procedure belongs to step 6 of the complete nesting workflow.

  1. Delete any incorrect machined areas.
  2. Change the status of objects and delete non-required objects.
  3. Position your objects horizontally and vertically in the top view.
  4. Rotate your objects about the Z-axis in the top view.
  5. Adjust the height position of your objects and/or rotate them about the X/Y-axis (required for multilayered blanks).
  6. Check if all cavities and drillings are correct.
  7. Specify the drilling range for objects with unrecognized drillings.
  8. Mark the cavities for objects with unrecognized cavities.
  9. Create a sinter bar for objects that require a sinter bar.
  10. Set drops for objects that require drops.
  11. Mark the attachment for objects with an attachment.
  12. Activate anterior tooth editing for the desired object)
  13. Edit or delete labels milled on objects.
  14. Set bars for all objects.

If you activated the automatic detection of cavities or drill holes in the STL import view, you need to check for all objects if DentalCAM has correctly recognized drill holes and cavities.

If the automatic detection has failed, mark the cavity or the drilling range manually.

The manual marking of drilling ranges and cavities is also required for objects for which you deactivated the corresponding detection function.

  • Open the Nesting view for adjusting objects with the following icon in the main icon bar:

Checking drilling ranges and cavities: Object with undetected cavity (marked orange) and object with undetected drilling range (marked white)

Checking drilling ranges

Drilling ranges can either be completely undetected or incorrectly marked. You need to thoroughly check both ends of every drill hole in your blank for both cases.

You may want to hide elements in the blank display for a better view. Showing/hiding elements of the blank display

How to check drilling ranges

  1. Switch to the bottom view. Toggling the view of the blank display

  2. Zoom in on an object with at least 1 drill hole.

    Adjust the viewpoint so that you can look onto the first end of the drill hole.

  3. Check whether the following applies:
    • The opening surface of the drill hole is marked in green.
    • The opening surface is even and doesn’t have any sharp bends
    • In the case of a drill hole in a connection geometry, the entire connection geometry is covered by a green body.
    • An arrow indicates the correct drilling direction (pointing perpendicularly “into” the drill hole).

    A correctly recognized drilling range

    1. Arrow pointing perpendicularly into the drill hole
    2. Even opening surface marked in green

    A correct drilling range for a hexagonal connection geometry

    1. Hexagonal connection geometry of an abutment without marking
    2. Correctly marked drilling range of the hexagonal connection geometry

  4. Repeat step 3 for the second end of the drill hole.

  5. If a drill hole hasn’t been recognized correctly, correct it manually via the editing function for specifying the drilling range.

    Marking and deleting drilling ranges

Examples of incorrectly marked drilling ranges

The following drilling range isn’t marked at all:

An unmarked drilling range

If a drill hole is angled too much so that the machine cannot machine it, DentalCNC displays the arrow in red.

 

In the following example, the marking of the opening surface has a sharp bend:

An incorrectly recognized drilling range with a sharp bend

In the following example, the marking of the drilling range doesn’t cover the whole hexagonal connection geometry of the abutment:

An incorrect drilling range which is too small to cover the connection geometry

In the following example, the arrow doesn’t point into the drill hole, but onto the object:

An incorrect drilling range where the drilling direction wasn’t properly recognized

Checking cavities

Cavities can either be completely undetected or incorrectly marked. You need to thoroughly check every cavity in your blank for both cases.

How to check cavities

  1. Switch to the bottom view. Toggling the view of the blank display

  2. Zoom in on an object with a cavity.

  3. Make sure that all cavities including the preparation line areas are marked green.

    Other areas must not be marked green.

    4. The automatic search function correctly recognized a cavity

  4. If a cavity hasn’t been recognized correctly, mark it manually via the editing function for marking cavities

Examples of incorrectly marked cavities

The following cavity isn’t marked at all:

An unmarked cavity

The following bridge was almost entirely marked as a cavity on import:

An almost fully marked bridge

In the following example, DentalCAM fused 3 cavities into 1 incorrect cavity. You can see this in the enlarged view from below: The interdental space is wrongly marked green (indicated by the arrows):

(a) Top view: Fused cavities; (b) Enlarged view from below: Interdental spaces erroneously marked green (indicated by the arrows)

What's next?

If drilling ranges or cavities need correcting:

Marking and deleting drilling ranges

Marking and deleting cavities

All editing functions for objects:

Editing functions in the nesting view

If you are finished with adjusting objects:

Setting bars

If you are unsure whether you are finished nesting the current blank, see the simple and complete nesting workflow:

How to nest objects

Related Topics Link IconRelated Topics