Troubleshooting

Is the machine operating?

While the axes are moving, you cannot open the working chamber door.

If applicable:

• Wait until the machine has finished.

Has a power failure occurred at the installation site of the machine?

If applicable:

• Depending on the duration of the power failure, restart the machine or perform an emergency opening.

Is electricity available at the installation site of the machine?

If applicable:

1. Connect the machine to the electrical source.
2. Switch on the machine at the main power switch.
3. If the working chamber lighting does not illuminate, check if the power cable is properly seated in the machine and is connected to the electrical source.
4. Try connecting the machine to a different socket.

Is the door blocked?

If applicable:

1. Switch on the machine at the main power switch.
2. If the working chamber lighting does not illuminate, check if the power cable is properly seated in the machine and is connected to the electrical source.
3. If the machine is not powered, perform an emergency opening when necessary.

Is the working chamber door open?

The machine does not reference with the working chamber door open.

If applicable:

• Close the working chamber door.

Is an Ethernet / USB cable connected to the machine?

If applicable:

• Check if all required cables are properly connected and undamaged. If possible, use the provided cable.

Is the working chamber illuminated in red?

In this case a machine malfunction occurred.

If applicable:

1. Restart the machine.
2. If the working chamber continues to be illuminated in red, contact customer service.

Do the tool positions in the Tools section correspond to the tools in the respective tool magazine?

If not, the machine uses the wrong tools during job execution.

How to check this:

1. In DentalCNC, compare the tool positions in the Tool management view with the tools in the corresponding tool magazine.
2. Replace the wrong tools in the tool magazine with the correct ones.

Is the blank properly mounted?

How to check this:

• Remove the blank and remount it. When using blocks: The groove on the block must be fully seated on the positioning pin on the holder.

Are bolts, fixing mechanisms, gaps and openings of the blank holder contaminated by processing dust?

If applicable:

• Clean the mentioned components thoroughly.

Is the measuring key contaminated?

If applicable:

• Clean the measuring key with a brush.

Are the tools worn?

How to check this:

1. Visually inspect all tools.
2. Check the tool life values in DentalCNC.
3. Replace worn tools with new ones.

Do rings on the tools sit in the groove on the tool shank?

How to check this:

• Visually inspect all tools and push rings that have moved into the groove again.

Are the tool magazine inserts worn?

If applicable:

• Replace the tool magazine inserts with new ones.

Do the parameters of the job in the software correspond to the parameters of the blank?

How to check this:

• Make sure that the following parameters of the job and of the blank in the machine correspond to each other. Also make sure that they are suitable for the objects that you want to machine.

• Material type
• Blank dimensions
• Indications (types) of the individual objects

Do you use the latest version of the manufacturing software Term for the software package consisting of DentalCAM and DentalCNC. that is released for the machine?

• To update DentalCAM & DentalCNC, follow the instructions in the documentation for the manufacturing software.

Are the object files of sufficient quality?

How to check this:

1. Check the quality of object files (STL files) in your CAD application or an STL viewer. Especially, consider the manufacturer information on wall thickness and border thickness.
2. If necessary, adjust the settings of your scanner and scan application.

See the Help Article on preparing objects.

Is the collet chuck of the spindle contaminated or is it loosely seated in the spindle?

If applicable:

1. Clean the collet chuck with the provided spindle service set.
2. When you insert the collet chuck into the spindle, make sure that it is properly seated.

Did you exchange the collet chuck at the recommended interval?

How to check this:

• Verify the recommended interval for exchanging the collet chuck in the maintenance table. If necessary, exchange the collet chuck.

Is cooling liquid lacking in the wet grinding module? Is the cooling liquid soiled?

If applicable:

• Refill the tank with clean cooling liquid.

If necessary:

• Clean the cooling liquid tank. Fill in clean cooling liquid.

Is the coarse filter in the wet grinding module clogged?

If applicable:

• Clean the filter and the cooling liquid tank. Fill the tank with cooling liquid.

Is the wet grinding module not properly installed or defective?

If applicable:

• Ensure that the wet grinding module is properly installed and operational.

Are the liquid nozzles in the working chamber clogged?

If applicable:

• Clean the nozzles with the inter-dental brush.

Is the compressed air regulator properly set?

• Set the air pressure at the compressed air regulator to a correct value.

 Adjusting the air pressure with the compressed air regulator

Is the error caused by the external compressed air supply system?

How to check this:

1. Close the main external compressed air supply valve.
2. Check if all pneumatic hoses are properly seated in their connections and are undamaged.
3. Check if your compressor is switched on and set correctly.
4. Open all required valves of your compressed air supply system.

Does the air pressure fluctuate significantly so that jobs are frequently interrupted?

If applicable:

1. Verify that your compressor can permanently generate the required air pressure and volume flow.

Not every compressor is designed for commercial use with dental machines.

2. If necessary, replace your compressor with one that meets the recommendations.

 Installing the pneumatics

Is the suction unit switched on and operating?

How to check this:

1. Check if the suction hose is properly seated in the corresponding opening and is undamaged.
2. If the machine controls the suction unit:
   1. Check if the switching unit or data cable is properly installed.
   2. Try to operate the suction unit without the switching unit or data cable.
3. Switch on the suction unit.
4. Set the extraction level higher until the machine continues the job.

Is the filter or container of the suction unit full?

If applicable:

• Insert an empty filter into the suction unit or empty the container.

Does the suction unit have an automatic tapping function?

If applicable:

• Choose a shorter tapping interval.

Tool magazine inserts are delivered without drilled holes for tools. You drill them with the machine.

• Use DentalCNC to drill new holes into the new inserts.