Blow Out
Blow Out
An unvented volume creates its own vent hole under the pressure differential.
Blow out can be diagnosed as follows:
- Blow out is a defect specific to unvented volumes.
Cause - Unvented Volume Solution - Print Preparation or Part Design
Cause - Unvented Volume Solution - Print Preparation or Part Design
Cause - Unvented Volume Solution - Print Preparation or Part Design
Verify if your project contains an unvented volume.
- If you do have an unvented volume, proceed to the Print Preparation or Part Design Adjustments troubleshooting options below.
- If you do not have an unvented volume, refer to the Identify a Defect guide to identify a different defect.
It is recommended that you review all the possible solutions before taking action to ensure you are pursuing the best course of action.
The following solutions will address print or part-related causes of the defects. Choose among the suggested actions below and select the best approach for your application. Usually only one type of adjustment is needed.
If problems persist, please reach out to Carbon Support.
An unvented volume has a pressure differential inside versus outside the trapped volume. If an internal cavity cannot vent to the outside, the difference in pressure between the inner cavity and the outside of the part can cause the part to puncture, creating its own vent hole.
- Thin walls in conjunction with a large trapped volume are the most likely to experience a blow out.
- More susceptible to unvented volumes:
- EPU due to its low green strength.
- L1 printer due to larger suction forces.
Root Issue | Problem | Why Defect Presents |
|---|---|---|
Unvented volume | A hole in the part. | The pressure differential causes the part to puncture, creating its own vent hole. |