Layering

layering part surface is stretched out of position during printing how to identify layering can be diagnosed as follows on vertically oriented surfaces layering appears as lines that run horizontally, parallel to the platform the lines will appear sunken on both sides of the surface, ie the surface is thinner than it should be where the line occurs on horizontally oriented surfaces layering appears as a sunken area on the surface the surface will be thinner than it should be where the layering occurs incomplete lattice docid vxgj8ytejzi4a1mg6awl arises from the same issue but appears on lattice struts instead of surfaces cause inconclusive vertical layering cause inconclusive vertical layering cause inconclusive vertical layering cause inconclusive horizontal layering troubleshooting 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 part defects for more tips 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 supports add supports to vertical and horizontal surfaces supports design thicken or add structure to vertically oriented surfaces add structure to horizontal surfaces design print plan adjustments reference print plan adjustments for guidance on the following parameters 1 pump up parameters pump height parameters minimum pump height distance from peak multiplier minimum distance from peak platform speed parameters motor speed up other parameters enhanced epu force feedback enabled if problems persist, please reach out to carbon support explanation & causes explanation layering is formed when a surface is unable to break free of the surface tension at the dead zone during the pump up stage of printing a slice this stretches the surface which presents differently based on how the surface is oriented this defect usually occurs with elastomeric resins that are soft and pliable during printing reference dls printer dynamics docid\ u7xyytjydp3bvsyy2qkcu for more information on the stages of printing a slice on vertically oriented surfaces the edge of a surface is held by the surface tension of the dead zone when the platform rises, the surface is stretched thin as the platform moves back down to the curing position, the surface is still stretched, which appears as a line in the surface vertical surface does not break surface tension at dead zone and stretches the next slice cures over the stretched surface and leaves a line on vertically oriented surfaces z dimensions for pump height and slice thickness are exaggerated for visibility on horizontally oriented surfaces a surface flat against the window does not break free of the dead zone's surface tension when the platform rises as the platform moves back down to the curing position, the surface is still in the curing zone and overlaps with the next slice this appears as a sunken area in the surface portion of surface does not break surface tension at dead zone and resin does not flow below for next slice the next slice only cures where resin was able to flow the next slice proceeds normally but a sunken area has been left on the surface on horizontally oriented surfaces z dimensions for pump height and slice thickness are exaggerated for visibility causes print preparation or part design how the part is oriented , supported , or designed is causing the defect print preparation or part design cause root issue problem why defect presents supports under supported supports provide additional structure which makes it easier for surfaces to break free of the dead zone's surface tension design thin surfaces thin surface are more prone to stretching during the pump up stage print plan adjustments print plan adjustments print plan adjustments 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 1 pump up pump height decrease decrease a decrease in pump height makes it more difficult for the part to break free from the dead zone surface tension 4 settle down delay timing decrease decrease when the part does not break free of the dead zone surface tension, resin flow is restricted a longer settle down delay is needed to compensate for this