Under-Supported Overhang

under supported overhang overhangs are not fully supported, resulting in malformed or missing features how to identify under supported overhang can be diagnosed as follows part geometry did not resolve properly unsupported overhangs will appear thinner than they should, tapering down in thickness over the length of the overhang when supports are too far apart, what should be a straight edge will instead appear curved when lattices have struts that are spanning too far, the struts may not connect properly during printing this most often occurs with a "palm tree formation", where a vertical strut (the trunk) supports horizontal struts (the branches) that have longer than recommended bridges cause no supports at overhang no supports at overhang solution print preparation or part design cause no supports at overhang no supports at overhang solution print preparation or part design cause not enough supports not enough supports solution print preparation or part design cause overhang too long overhang too long solution print preparation or part design 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 orientation change orientation to maximize self supporting structure reference dls design guidelines for unsupported angles per resin supports add supports to overhangs and bridges reference dls design guidelines for overhangs per resin add supports to islands tall supports should be trussed together for extra strength carbon printer software will automatically truss together supports that are generated at the same time l1 printers can fit taller parts in their build volume, so be especially aware reference the orientation assessment for tips on supporting overhangs/bridges and islands design non lattices add gussets to stabilize overhangs that are too long to support themselves reference dls design guidelines for overhangs per resin tilt horizontal overhangs 40 degrees +/ so that they are self supporting reference dls design guidelines for unsupported angles per resin lattices when lattices have struts that are spanning too far, add a strut print plan adjustments print plan adjustments are not applicable for this defect if problems persist, please reach out to carbon support mailto\ support\@carbon3d com explanation & causes explanation overhangs, bridges or islands are either not supported or under supported overhangs should be less than the recommended length, oriented at a self supporting angle, or redesigned to meet these conditions reference dls design guidelines for overhangs and unsupported angles per resin 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 orientation overhang is oriented at less than the recommended angle to be self supporting each slice can only handle a small amount of cantilevered curing material supports overhang not supported each slice can only handle a small amount of cantilevered curing material supports island is not supported curing material must either connect to a previous slice or to the platform via supports supports supports are structurally weak tall supports must be trussed together to be structurally strong enough to support an overhang design overhangs are too long or are oriented at less than the recommended angle to be self supporting each slice can only handle a small amount of cantilevered curing material