Smokiness
Smokiness
Marbled pattern of light and dark swirls on the part surface.
Smokiness can be diagnosed as follows:
- Swirl patterns are most visible on large flat surfaces.
If any of these conditions apply to your print, take the corrective action and reprint to see if the problem is resolved.
If resin is susceptible to visible smokiness, additional stirring of the resin before the next print can help alleviate the issue.
Reference causes to address the root problem.
If problems persist, please reach out to Carbon Support.
When resin is not properly mixed, this can be visible in the finished part, similar to the swirling pattern seen in this photo of stirring two resin colors.
RPU may be more susceptible to mixing issues.
Root Issue | Problem | Why Defect Presents |
|---|---|---|
Resin is not mixed properly | Resin lot is expired | When resin has expired, the Part A and/or B of a two part resin may be thicker than normal and may not mix properly with normal protocol. |
| Mixed too quickly | Regardless of the mixing method used, if the process is completed too quickly, the resin will not have time to fully mix. |
| Mix ratio is wrong | If the Part A and B of a two part resin are not mixed at the proper ratio then normal protocol may not ensure a complete mix. |
Mechanical properties of the material are also likely to be off.