Incomplete Lattice

incomplete lattice lattice prints with a gap how to identify incomplete lattice can be diagnosed as follows vertical struts have a gap or are missing horizontal struts have a gap in the center the strut may have excess cured resin at the ends where the gap occurs layering docid\ f3rkqgeozlwauxwynkdlp arises from the same issue but appears on surfaces instead of lattice struts cause inconclusive cause inconclusive occurs at vertical struts cause inconclusive occurs at horizontal strut 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 design add struts to provide more structure at the problematic struts the performance of the lattice will change 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 an incomplete lattice is formed when struts are unable to break free of the surface tension at the dead zone during the pump up stage of printing a slice this creates two issues prevents resin from flowing in for the next slice leaves the latticed stretched out, overlapping with the next slice when the lattice proceeds normal in a subsequent slice, a gap is left behind in the lattice 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 incomplete lattice video text lattice does not break surface tension at dead zone and resin does not flow below part for next slice the next slice only cures where resin was able to flow the next slice proceeds normally but a gap has been left in the lattice 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 designed lattice is designed to have longer struts longer struts (> 5 10 mm) are more likely to be stretched rather than break free of the dead zone surface tension most commonly seen with horizontal or vertical struts 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 small pump height is less likely to break the dead zone's surface tension 1 pump up platform speed increase increase increased motor up speed leaves less time for the surface tension to be broken