Voids

voids small negative depressions on faces parallel to the platform how to identify voids can be diagnosed as follows voids occur on surfaces parallel to the platform voids are usually circular or oblong in shape voids are most common on large cross sections resin starvation is a defect that can appear similar as it arises from similar circumstances cause inconclusive cause large cross section large cross section solution print preparation or part design 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 try the following actions in order process, material, and hardware checks print preparation or part design adjustments 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 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 bottle 5 6 times to distribute pigment 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 large cross section orient parts to avoid large cross sections parallel to the platform epx 82 docid\ a2ifw3fcytq3mszly l y should avoid surfaces parallel to the platform that are larger than 10 mm across unvented volume reorient the part to vent the trapped volume supports unvented volume lift the part above the platform on supports to vent the trapped volume layout add more space between parts; increase padding in auto layout design unvented volume add vent holes in the part, at or near the platform, to vent the trapped volume reference dls design guidelines docid\ t94pr a c0pihy6ljswk7 for drain/vent hole guidelines print profile print using the default print profile instead of dynamic to slow down the print reference print controls dynamic is primarily a tool for m1 and m2 printers force feedback (ffb) printers (m3, m3 max, l1) will see minimal to no difference in print speed with the dynamic print profile, so this troubleshooting option is unlikely to help default print profile print plan adjustments reference print plan adjustments docid\ nxuk0dltz vemeau0dipn for guidance on the following parameters pump up stage pump height parameters minimum pump height distance from peak multiplier minimum distance from peak settle up stage delay timing parameters force slope up settled threshold minimum time force slope up settled other enhanced epu force feedback enabled if problems persist, please reach out to carbon support mailto\ support\@carbon3d com explanation & causes explanation normal printing requires resin flow resin flow to reach the center of the part this is also known as reaching the deepest pixel voids occur when resin does not reach the center voids occur when resin does not reach the center this can happen for a couple of reasons resin does not have time to completely cover each layer resin is more viscous than the print planner expects causes print preparation or part design resin print plan adjustments 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 large cross section resin must travel far to reach the deepest pixel and may not enough time to do so unvented volume unvented volumes can cause restricted resin flow layout parts are too close together if parts are packed too close together, resin flow may be restricted and not reach all parts equally print profile print too fast in dynamic a shortened print gives less time for resin flow to all areas of the build for m1 and m2 printers resin 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 resin may not be flowing properly if resin is too thick to flow as expected, the print plan may not allow enough time for the resin to reach the deepest pixel print plan adjustments 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 the pump height can limit how much resin can flow 2 settle up delay timing decrease decrease a shortened settle up stage limits the amount of time resin can flow