--- title: Splints slug: troubleshooting/splints docTags: createdAt: 2025-02-19T04:18:30.901Z --- ::Image[]{src="https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/elqYBAaWXDoSRG4oNxvhE_keysplint-splints-on-printer-01-dsc2683-1500x.jpg" size="70" width="1500" height="807" position="flex-start" showCaption="false"} :::::::ExpandableHeading ## Model not adhering to platform ::::::WorkflowBlock :::WorkflowBlockItem **Check Support position** Check the Printer UI to ensure your parts were supported **Above Platform,** and that the proper support SOP was followed: - [KeyPrint KeySplint Hard and Hard Clear](docId\:oMBYMp5dsFTApFdsGDYzG) - [KeyPrint KeySplint Soft Clear](docId\:X2gB7ZIbmYyRh2F5wCdjs) - [Desktop Health SmileGuard](docId\:GfGLjvBz-0_kk3PDCl-Vd) ::: :::::WorkflowBlockItem **Platform maintenance** Check to ensure your platform is seating correctly. ::::VerticalSplit{layout="left"} :::VerticalSplitItem **M2** ::: :::VerticalSplitItem - [Clean kinematic balls on platform.](docId:0YWe7YMSIyDn_IMLDVTpn) - [Clean and re-grease the kinematic pin mounts in the platform latch.](docId:0YWe7YMSIyDn_IMLDVTpn) ::: :::: ::::VerticalSplit{layout="left"} :::VerticalSplitItem **M3/M3 Max** ::: :::VerticalSplitItem - [Clean the print head clamp pot](docId\:iMUK_y8KlPC7qPxkU6YyK) ::: :::: ::::: :::WorkflowBlockItem **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. ::: :::WorkflowBlockItem **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. ::: :::WorkflowBlockItem **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. ::: :::WorkflowBlockItem **Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)**. ** ::: :::::: ::::::: ::::::ExpandableHeading ## Poor fit when tested on a model :::::WorkflowBlock :::WorkflowBlockItem **Check supports** Check the Printer UI to ensure your parts were supported according to the guidance: - [KeyPrint KeySplint Hard and Hard Clear](docId\:oMBYMp5dsFTApFdsGDYzG) - [KeyPrint KeySplint Soft Clear](docId\:X2gB7ZIbmYyRh2F5wCdjs) - [Desktop Health SmileGuard](docId\:GfGLjvBz-0_kk3PDCl-Vd) ::: ::::WorkflowBlockItem **Check the design** Check the design settings in your CAD software. :::hint{type="info"} Carbon advises against a thickness below **1.5 mm** as print challenges may arise, and recommends adjusting the offset and retention values to achieve your desired fit. ::: Please contact [Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt) with a hardware error. :::: ::::WorkflowBlockItem **Check washing process** Ensure that you are following the correct cleaning guidance by checking the manufacturer IFU or protocol. In particular, check that: - the correct swabs were used; and - enough swabbing was done to clean the parts thoroughly. :::hint{type="info"} This does not apply to splints printed with the AO Polishing Cassette. ::: :::: :::WorkflowBlockItem **Check support tips** Check to see if the support tips on your parts need to be sanded down. Tips can interfere with a model and prevent a part from fully seating. ::: :::WorkflowBlockItem **Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)** with a print error.** ::: ::::: :::::: :::::ExpandableHeading ## Intaglio surface appears glossy :::hint{type="info"} This does not apply to splints printed with the AO Polishing Cassette. ::: ::::WorkflowBlock :::WorkflowBlockItem **Check washing process** Ensure that you are following the correct cleaning guidance by checking the manufacturer IFU or protocol. In particular, check that: - the correct swabs were used; and - enough swabbing was done to clean the parts thoroughly. This does not apply to splints printed with the AO Polishing Cassette. ::: :::WorkflowBlockItem **Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)** with a print error.** ::: :::: ::::: :::::ExpandableHeading ## Part is deformed ::::WorkflowBlock :::WorkflowBlockItem **Check supports** Check the Printer UI to ensure your parts were supported according to the guidance: - [KeyPrint KeySplint Hard and Hard Clear](docId\:oMBYMp5dsFTApFdsGDYzG) - [KeyPrint KeySplint Soft Clear](docId\:X2gB7ZIbmYyRh2F5wCdjs) - [Desktop Health SmileGuard](docId\:GfGLjvBz-0_kk3PDCl-Vd) If the supports are attaching at a **horizontal angle,** they may detach during printing allowing part deformation. ![](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/e77N2N0w5vTyOdWlfaiUi_horizontal-tips01.png) Supports should attach to the surface of the part that is facing the platform creating **vertically oriented support tips.** Please reapply the supports and move the attachment points to address this issue if this problem occurs. Ensure that the perimeter of the splint does not come to a **sharp edge,** as this makes support attachment difficult. The perimeter should at least be as wide as the tips of the supports to ensure ample space for support connection. ::Image[]{src="https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/qIEwDK-AmENkgCiq9HdeH_edges01.png" size="70" width="968" height="600" position="flex-start" showCaption="false"} ::: :::WorkflowBlockItem **Check the slices** Check the [slice video](docId\:gfR-GoC-Irq_L9_KanC-X) in the printer UI to ensure the model does not have any errors. If errors are detected, use your 3rd party software tool to repair them. ::: :::WorkflowBlockItem **Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)** with a print error.** ::: :::: ::::: :::::ExpandableHeading ## Parts have developed a yellow tint after curing. ::::WorkflowBlock :::WorkflowBlockItem **Normal yellowing** A yellow tint is expected and normal after curing parts printed in the splint resins and should fade in **24 - 48 hours.** See the specific resin page for more information about yellowing: - [Desktop Health SmileGuard](docId\:GfGLjvBz-0_kk3PDCl-Vd) - [KeyPrint KeySplint Hard and Hard Clear](docId\:oMBYMp5dsFTApFdsGDYzG) - [KeyPrint KeySplint Soft Clear](docId\:X2gB7ZIbmYyRh2F5wCdjs) ::: :::WorkflowBlockItem **Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt). ::: :::: ::::: :::::ExpandableHeading ## Parts appear opaque ::::WorkflowBlock :::WorkflowBlockItem **Check KeySplint recommendation** Keystone Industries has [specific recommendations](https://keyprint.keystoneindustries.com/wp-content/uploads/2020/01/Keysplint-Soft_Polishing_Protocol.pdf) for KeySplint Soft. ::: :::WorkflowBlockItem **AO Polishing Cassette** The AO Polishing Cassette is specifically designed to provide a glossy finish right off the printer. See [AO Polishing Cassette](docId\:iFFh3q8-WLk-LIqr87bd5) to learn more. ::: :::WorkflowBlockItem **Still having trouble? Contact **[Carbon Support](docId\:K86Zo5vcyN_wqJL3vdGFt)**. ** ::: :::: ::::: :::ExpandableHeading ## 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. ::: *** :::CtaButton{label="RETURN TO TROUBLESHOOTING HOME" docId="-JayexI5g2qiC7Sf6zliS" docAnchorId="#2DbFN" openInNewTab="true"} :::