Part Defects

Caping

15min

Caping
Capes or sheets of resin form on and between parts/features
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How to Identify
Caping can be diagnosed as follows:
Irregularly shaped strands/sheets of cured resin on the exterior of and between parts on the build.
This is an uncommon defect.
This is an extreme form of Veining﻿.
Cause - Layout﻿
Solution - Print Preparation or Part Design
Cause - Inconclusive
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Troubleshooting
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Process, Material, and Hardware Checks
If any of these conditions apply to your print, take the corrective action and reprint to see if the problem is resolved.
Double check that the resin selected in the UI for the build was the same resin printed.
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M1, M2, or L1 Printers: 
Check window between prints for debris
Reference Debris Detection﻿ for more information.
Ensure all of the printer's optics are clean for a clear path for UV light.
Verify the cassette window is cleaned properly, without dust, spots, or streaks.
Verify the projector path is clean
M1/M2 printers - check the deck glass
M3/M3 Max/L1 printers - check the projector lens
Reference cleaning instructions for your printer: M1/M2 Printer﻿, M3/M3 Max Printer﻿, L1 Printer﻿.
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Diagnostics
If the above checks & actions did not resolve the issue or do not apply to your print, the following diagnostics may further inform what is causing the issue.
Inspect cassette for contamination or damage. 
Reference Cassette Care﻿ for more information.
Print with a different cassette
If the issue is resolved with another cassette, reach out to Carbon Support for assistance with the problematic hardware.
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Print Preparation or Part Design Adjustments
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.
Adjust supports to allow more space between part and support.
Adjust density of supports to allow for more resin flow.
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Increase padding to at least 5 mm. Reference Layout﻿.
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Reference Print Plan Adjustments﻿ for guidance on the following parameters:
﻿4 Settle Down Parameters﻿ 
Delay Timing Parameters
Minimum Pre-Exposure Delay
Minimum Time Force Slope Down Settled
If problems persist, please reach out to Carbon Support.
Explanation & Causes
Explanation
Stray UV light partially cures a film of resin close to the window. That film eventually attaches to the part and is pulled up as the part builds.
The build is not receiving the proper dosage of light and/or oxygen.
Overheated resin disrupting the normal pigment concentration and disbursement.
Causes
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Root Issue
Problem
Why Defect Presents
Supports
Over-supported
Parts that are over-supported provide less space for resin to flow properly throughout the build causing light to scatter.
Layout
Parts too dense on platform
Padding between parts is to small for resin to flow properly throughout the build causing light to scatter.
Print Profile
Print too fast in Dynamic
A shortened print gives less time for resin flow to all areas of the build causing light to scatter. 
For M1 and M2 printers
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Root Issue
Problem
Why Defect Presents
Cleaning
Cassette window is dirty
A dirty or faulty cassette inhibiting regular light and oxygen flow.
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Deck glass is dirty (M1/M2)
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Projector lens is dirty (M3/M3 Max/L1)
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Window Damage
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A dirty or faulty cassette inhibiting regular light and oxygen flow.
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Root Issue
Problem
Why Defect Presents
Resin Selection
Wrong resin
The print is not receiving the proper dosage of resin.
Resin Handling After Printing


Not checking window between prints


Not checking the window between prints could leave accidental debris behind for the next print that inhibits proper UV exposure.
Additionally, checking the window helps cool down the resin between prints. Overly heated resin can disrupt normal pigment disbursement.
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Printing Stage
Parameter Type
Type of Adjustment
Why Defect Presents
4 Settle Down
Delay Timing
﻿Decrease﻿
The settle down phase is too fast for proper resin flow and oxygen recharge, build causing light to scatter.
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Root Issue	Problem	Why Defect Presents
Supports	Over-supported	Parts that are over-supported provide less space for resin to flow properly throughout the build causing light to scatter.
Layout	Parts too dense on platform	Padding between parts is to small for resin to flow properly throughout the build causing light to scatter.
Print Profile	Print too fast in Dynamic	A shortened print gives less time for resin flow to all areas of the build causing light to scatter. For M1 and M2 printers

Root Issue	Problem	Why Defect Presents
Cleaning	Cassette window is dirty	A dirty or faulty cassette inhibiting regular light and oxygen flow.
	Deck glass is dirty (M1/M2)
	Projector lens is dirty (M3/M3 Max/L1)
Window Damage		A dirty or faulty cassette inhibiting regular light and oxygen flow.

Root Issue	Problem	Why Defect Presents
Resin Selection	Wrong resin	The print is not receiving the proper dosage of resin.
Resin Handling After Printing	Not checking window between prints	Not checking the window between prints could leave accidental debris behind for the next print that inhibits proper UV exposure. Additionally, checking the window helps cool down the resin between prints. Overly heated resin can disrupt normal pigment disbursement.

Printing Stage	Parameter Type	Type of Adjustment	Why Defect Presents
4 Settle Down	Delay Timing	Decrease	The settle down phase is too fast for proper resin flow and oxygen recharge, build causing light to scatter.

Broken Struts

Chipping