--- title: Over-Adhesion slug: troubleshooting/over-adhesion description: Discover effective solutions for addressing the "Over-Adhesion" part defect from Carbon DLS printing. This comprehensive document explains how to identify, troubleshoot, and understand the root causes. docTags: createdAt: 2024-06-14T01:01:42.249Z --- ::::VerticalSplit{layout="left"} :::VerticalSplitItem **Over-Adhesion** The part is difficult to remove from the platform. ::: :::VerticalSplitItem ::Image[]{src="https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/ph4xLUBwtqp76BYpwGQlg_lmmv5irt7xtln4-l-i1wlgtnhooi13e3c.jpg" size="70" width="1080" height="1080" position="center" alt="Over-Adhesion" showCaption="false"} ::: :::: # How to Identify Over-adhesion is really an experience while removing the part from the platform, rather than a defect itself. Other defects may arise as a result of the difficulty in platform removal, as shown in the examples below, or you may simply be adding time to production as the labor to remove these parts becomes a burden. Over-adhesion can be experienced as follows: - Parts are very difficult to remove from the platform. - Parts exhibit [Flashing](docId:24ACfQ6OLEy813QgV8Hfw) where they attach to the platform. - Parts exhibit [Chipping](docId:03vZH0j7nC3Bi1Cbps8mm) or [Gouging](docId\:LwfeMtuBtirwS-IJ-caio) where they meet the platform when attempting to remove. ::::LinkArray :::LinkArrayItem{headerType="IMAGE" headerImage="https://api.archbee.com/api/optimize/Nvx7WdIjE2XFpMaBlbCES--Gb971jrifpHOKVuekNSE-20240812-161523.jpg"} **Flashing** example with parts on the platform ::: :::LinkArrayItem{headerType="IMAGE" headerImage="https://api.archbee.com/api/optimize/Nvx7WdIjE2XFpMaBlbCES-rU2qiFy6fbD8E7yvXEfsd-20240812-161533.png"} **Chipping** example during platform removal ::: :::: # Troubleshooting ## Do you see a defect? If you see [Flashing](docId:24ACfQ6OLEy813QgV8Hfw), [Chipping](docId:03vZH0j7nC3Bi1Cbps8mm)** , **or [Gouging](docId\:LwfeMtuBtirwS-IJ-caio), refer to that defect's troubleshooting for specific guidelines. ### Is the part difficult to remove without a defect? :::hint{type="info"} It is recommended that you review all the possible solutions before taking action to ensure you are pursuing the best course of action. ::: If the best course of action is not apparent, try the troubleshooting options in the order listed. Refer [here](docId\:pPm8gmeGCY_0fkFwgTCyj) for more tips. ## Process 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. :::ExpandableHeading ### Platform - For new platforms - The factory coating may make parts difficult to remove. Use acetone wipes or an acetone soaked blue towel to scrub off the coating. - For platforms that have been in production, refer to the Diagnostics section. ![Platform](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/49DqAkM8Mdl4N17VGm94__image.png) ::: :::ExpandableHeading ### Release Film Release film reduces adhesion. If you experience over-adhesion, try printing the build using release film. ![Release Film](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/C1YzhoGxqXAf7xFMjAXK4_image.png) ::: :::ExpandableHeading ### Process Technique - Try removing parts from the platform with a dead blow hammer and scraper, when too much force is needed with the scraper tool alone: - Align the scraper blade with the part. - Tap back of the scraper tool **LIGHTLY** with the hammer. - Make sure to keep blade against platform at all times. ![Dead blow hammer](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/lu6aAzg2_t6KxXGFnQ_rM_image.png) ::: ## 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. :::ExpandableHeading ### Hardware - Print with a different platform - If the issue is resolved with another platform, reach out to [Carbon Support](mailto\:support@carbon3d.com) for assistance with the problematic hardware. - If the issue persists with the same platform, run an [Alignment Squares Test](docId\:eneYDJvgK9I1zhog5jjJE). ::: ## 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. :::::ExpandableHeading{isOpen="true"} ### Orientation ::::VerticalSplit{layout="middle"} :::VerticalSplitItem Change the orientation to place a smaller cross section on the platform. ::: :::VerticalSplitItem ![Orientation](https://res.cloudinary.com/carbon3d/image/upload/t_auto_quality_format/Education/Troubleshooting/Part-Defects/_Common-troubleshooting-for-all/large-to-small-cross-section.png) ::: :::: ::::: :::::ExpandableHeading{isOpen="true"} ### Supports ::::VerticalSplit{layout="middle"} :::VerticalSplitItem Support the part off the platform. - Supports will provide a smaller cross section on the platform - The scraper tool used to remove the part from the platform will not touch the part, protecting it from damage. ::: :::VerticalSplitItem ![Supports](https://res.cloudinary.com/carbon3d/image/upload/t_auto_quality_format/Education/Troubleshooting/Part-Defects/_Common-troubleshooting-for-all/Over-adhesion-supports.png) ::: :::: ::::: :::::ExpandableHeading ### Design ::::VerticalSplit{layout="middle"} :::VerticalSplitItem Redesign the part with fillets or bevels at the platform edges. ::: :::VerticalSplitItem ![Design](https://res.cloudinary.com/carbon3d/image/upload/t_auto_quality_format/Education/Troubleshooting/Part-Defects/_Common-troubleshooting-for-all/Over-adhesion-design.png) ::: :::: :::hint{type="danger"} **Use extreme caution with this troubleshooting option.** A common cause for the inverse defect, [Under-Adhesion](docId\:DAbqNXb4KnG1eeiClRzqF), can be from this type of design. This is best utilized for rigid resins when the cross section on the platform is large and other solutions are not viable. ::: ::::: :::ExpandableHeading ### Print Plan Adjustments Reference [Print Plan Adjustments](docId\:NxUK0dltz_vemEAU0DIpN) for guidance on the following parameters: [5 Exposure Parameters](docId\:nunXRrM4bWbawUQk0FrDt) *To reduce adhesion* - Exposure Timing Parameters - Base Exposure Multiplier - Brightlining Parameters *All four parameters must be specified* - Brightline Interior Exposure Time - Brightline Exterior Exposure Time - Brightline Border Thickness Pixels - Brightline Outer Borders ::: :::hint{type="info"} If problems persist, please reach out to [Carbon Support](mailto\:support@carbon3d.com). ::: # Explanation & Causes ## Explanation ::::VerticalSplit{layout="middle"} :::VerticalSplitItem The first slices of the build are exposed to a higher level of UV light to promote adhesion. This can result in parts that are very strongly adhered to the platform. - Geometries with larger cross-sections at the platform are the most susceptible to over-adhesion. - EPX may be more prone to over-adhesion due to its rigidity. ::: :::VerticalSplitItem ![Over-Adhesion](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/g1fbSpFN8ba4boz94gnOl_image.png) ::: :::: ## Causes ### Print Preparation or Part Design ::::VerticalSplit{layout="middle"} :::VerticalSplitItem How the part is **oriented**, **supported**, or **designed **is causing the defect. ::: :::VerticalSplitItem ![Print Preparation or Part Design Cause](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/LhaBjVT_Yxhp03FPtHLyF_orient-and-support-quick-view-v0101-xxs.gif) ::: :::: | Root Issue | Problem | Why Defect Presents | | ---------- | ----------------------------------- | ---------------------------------------------------------------------------------------- | | Oriented | Large cross section on the platform | More surface area to adhere the part to the platform at the higher base exposure levels. | ### Hardware ::::VerticalSplit{layout="middle"} :::VerticalSplitItem ::Image[]{src="https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/cNMDprn99RIqCfoLiaEF4_hardware-xs.png" size="80" width="738" height="600" position="center" alt="Hardware" showCaption="false"} ::: :::VerticalSplitItem The printer, cassette, or platform is **dirty** or requires **maintenance **to resolve the defect. Occasionally, a defect may indicate the printer requires servicing by a Carbon engineer. ::: :::: | Root Issue | Problem | Why Defect Presents | | ------------ | ----------------------------------- | ------------------------------------------------------------------------------------------------- | | Cleaning | Factory coating on platform | The factory coating on a new platform can lead to stronger adhesion. | | Misalignment | Mechanical alignment of the printer | The platform could be too close to the window, receiving a higher dose of UV light than intended. | ### Print Plan Adjustments ::::VerticalSplit{layout="middle"} :::VerticalSplitItem ![Print Plan Adjustments](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/BzaP59syjyUMWREOHSLmE_print-plan-adjustments-v142.png) ::: :::VerticalSplitItem [Print Plan Adjustments](docId\:NxUK0dltz_vemEAU0DIpN) adjust the print plan to optimize mid to high volume production and/or address part defects. In doing so, adjustment may both **prevent or cause defects**. Below are adjustments that can cause this defect. ::: :::: | Printing Stage | Parameter Type | Type of Adjustment | Why Defect Presents | | -------------- | --------------- | ----------------------------------------- | ------------------------------------------- | | 5 Exposure | Exposure Timing | **Increase** | Adhesion is increased with more UV exposure | | 5 Exposure | Brightlining | **Increase** | Adhesion is increased with more UV exposure |