Sagging

sagging features drooping down after thermal curing (baking) sagging example how to identify sagging can be diagnosed as follows thin walls, overhangs, and large surfaces look fine after printing but are sagging down, relative to their baking orientation, after thermal curing cause inconclusive 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 if any of these conditions apply to your print, take the corrective action and reprint to see if the problem is resolved adjust baking method change the baking method to provide support to sagging features reorient change the baking orientation to place delicate features and overhangs overhangs on their side change the baking orientation pack parts in salt salt provides support to thin and delicate features with compatible resins, salt is effective to temporarily fixture the part during thermal curing reference salt baking docid\ whftudzdy0cs0a0 dljcm for more information pack parts in salt leave supports the supports used during printing can be baked with the part if supports are accessible to remove with a cutting tool the material is soft enough to cut with a hand tool after baking ie an elastomer leave supports baking fixture create a baking fixture to hold features in place during baking you can design and print a baking fixture in a material that can withstand the high temperatures of baking, such as loctite ind147 docid\ e2xwjdkbpkrmfpaccheu0 baking fixture 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 design increase thickness increase thickness of and/or shorten overhangs increase thickness add structure add fillets, bevels, or chamfers to increase strength at features too weak to support their weight add structure if problems persist, please reach out to carbon support explanation & causes explanation unsupported thin walls, overhangs, and large surfaces sag under their own weight during thermal curing, parts temporarily soften as their polymer structure reforms into their final mechanical state thin, unsupported features sag in this softened state and remain in that position when final material properties are reached causes post processing how the part is handled in post processing is causing the defect post processing root issue problem why defect presents weak features features not supported thin features with overhangs too long to support their own weight will sag when in a temporarily softened state during baking print preparation or part design how the part is oriented , supported , or designed is causing the defect print preparation or part design root issue problem why defect presents weak features thin and fragile features thin features with overhangs too long to support their own weight will sag when in a temporarily softened state during baking