---
title: Gingiva
slug: troubleshooting/gingiva
docTags: 
createdAt: 2025-02-19T18:39:39.155Z
---

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## Parts not adhering to platform

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**Check the slices**

Check the [slice video](docId\:gfR-GoC-Irq_L9_KanC-X) in the printer UI to ensure the model has a flat base and is snapped to the platform.

The first slice should show the entire base, not just a small piece of the part.
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**Solvent check**

Check that you are cleaning platforms with the **correct solvents** (99.5% IPA or acetone).  Incorrect cleaning prevents the next print from adhering well.
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**Expired resin**

Check the **expiration sticker** on your resin bottle to ensure your resin is not past its expiration date.  If it is, dispose of the resin and print again with a non-expired bottle.
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**Platform maintenance**

Check to ensure your platform is seating correctly.

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**M2**
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- [Clean kinematic balls on platform.](docId:0YWe7YMSIyDn_IMLDVTpn) 
- [Clean and re-grease the kinematic pin mounts in the platform latch.](docId:0YWe7YMSIyDn_IMLDVTpn) 
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**M3/M3 Max**
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- [Clean the print head clamp pot](docId\:iMUK_y8KlPC7qPxkU6YyK) 
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**Check alignment**

If you are still experiencing issues with parts consistently falling off the platform, your printer may be **out of alignment.** 

As a very basic test, you can run an an [Alignment Squares Test](docId\:eneYDJvgK9I1zhog5jjJE) or a [Z-stroke calibration test print](docId\:eneYDJvgK9I1zhog5jjJE)  to see if there are any large issues with your printer's alignment. 

The **alignment test print** is more appropriate when adhesion is observed to vary across the build plane.

The **Z-stroke calibration test print **shows adhesion is uniformly poor across the build plane.  

-  [Alignments Squares Test](docId\:eneYDJvgK9I1zhog5jjJE) 
-  [Z-Stroke Test](docId\:eneYDJvgK9I1zhog5jjJE) 

Please send the results to [Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt) to determine if alignment may be contributing to the print failures.
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**Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)**. **
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## Poor fit on model or poor sleeve fit.

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**Check DME settings in 3shape**

If using **3shape Implant Studio** for guide design, check to ensure the Carbon M Series Printer DME settings were applied.  The settings included in 3Shape specify a range and some iterating within this range to achieve the desired fit is not uncommon.

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Carbon has not validated settings for 3rd party software other than 3Shape Implant Studio.
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**Check the orientation and support**

Check the project in the printer UI to ensure your parts were oriented and supported correctly:

[Keystone KeyGuide](docId\:ZGnWA9gHjnF4wHJsliUoQ) 
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**Check part surface**

Check to see if the support tips on your parts need to be sanded down. Tips can interfere with a model and create rocking.
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**Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)** with a print error.**
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## Parts fit loose and do not stay on the model

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**Scale up**

While gingiva parts typically fit loosely, parts can be [scaled](docId:4Z6MFha_0Lh3vOpPv9Jmn) up by **1 - 2%** to mitigate any serious fit issues.
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**Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)** with a print error.**
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## Other issue

For any other issue, contact [Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt). Be sure to provide as much detailed information as possible in order to expedite the diagnostic process.
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***

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