Delamination

delamination the part has disconnected slices with horizontal, eye shaped holes delamination how to identify delamination can be diagnosed as follows holes are horizontal on the platform side of the hole and curved away from the platform flat surfaces, parallel to the build platform, print with a rippled surface this is a rare failure and should be one of the last options considered when troubleshooting projects in production cause inconclusive cause inconclusive cause inconclusive 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 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 bad slices check for bad slices bad slices look for areas missing in the slice where the defect occurs check for a blank slice (reference project analysis ) repair repair the slicing if bad slices are found try an alternate slicing method (reference print controls ) repair the part in an stl repair program bad slices resin check the expiration date of your resin lot ensure all two part resin prints are completed within the resin's pot life ensure that one part resins are emulsified invert the bottle 5 6 times to distribute pigment resin 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 print plan adjustments reference print plan adjustments for guidance on the following parameters 5 exposure parameters docid\ nunxrrm4bwbawuqk0frdt 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 if problems persist, please reach out to carbon support explanation & causes explanation delamination occurs when the current slice does not fully cure onto the previous slice resulting in one or more eye shaped holes as the print proceeds delamination normal exposure the monomers, closest to the dead zone, do not connect to other monomers because the oxygen rich dead zone is preventing the curing process these stray monomers remain ready to cure to the next slice, ensuring isotropy most monomers connect within the slice to solidify farthest from the oxygen rich dead zone, monomers connect to stray monomers from the previous slice this connection between slices is why dls printing yields isotropic parts delamination same as normal exposure same as normal exposure farthest from the window, there is not enough uv exposure to connect the monomers between slices, so the slices are not fully connected 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 slicing error blank or missing portion of slice image a blank slice or a missing section of a slice can prevent the following slice from connecting properly resin the printing material is expired , beyond the printing range in its pot life , or has been improperly mixed , causing abnormalities in the print resin root issue problem why defect presents expired past pot life mixing resin is under exposed if the resin is questionable due to any of the root issues, then the standard exposure time for the resin may not properly expose the slices to uv light when the resin is under exposed, slices may not connect properly 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 5 exposure exposure timing decrease decrease when under exposed, slices may not connect properly 5 exposure brightlining decrease decrease when under exposed, slices may not connect properly