Chipping

chipping bits of part break off during removal from platform how to identify chipping can be diagnosed as follows damaged area occurs where the part contacted the platform occurs on rigid resins chipping docid 03vzh0j7nc3bi1cbps8mm and gouging docid\ lwfemtubtirws ij caio are defects that arise from the same issue but one appears on rigids and the other on elastomers, respectively 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 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 platform for new platforms, t he factory coating may make parts difficult to remove use acetone wipes or an acetone soaked blue towel to scrub off the coating new platformsd release film release film reduces adhesion if you experience chipping or gouging due to over adhesion, try printing the build using release film release film process technique review standard procedure for washing maintain scraper contact with platform at all times proceed slowly try removing parts from the platform with a dead blow hammer and scraper, when too much force is needed with the scraper tool alone (as shown below) align the scraper blade with the part tap back of the scraper tool lightly with the hammer make sure to keep blade against platform at all times deadblow hammer 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 the orientation to place a smaller cross section on the platform orientation supports support the part off the platform supports will provide a smaller cross section on the platform the scraper tool used to remove the part from the platform will not touch the part, protecting it from damage supports design redesign the part with fillets or bevels at the platform edges design use extreme caution with this troubleshooting option use extreme caution with this troubleshooting option a common cause for the inverse defect, under adhesion docid\ dabqnxb4kng1eeiclrzqf , can be from this type of design this is best utilized for rigid resins when the cross section on the platform is large and other solutions are not viable print plan adjustments reference print plan adjustments for guidance on the following parameters refer to guidance for over adhesion over adhesion 5 exposure parameters to reduce adhesion 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 part may be strongly adhered to the platform reference also over adhesion docid 6k62shy9n s4srwm6pazc poor removal technique using scraper to pry part off platform not keeping scraper in contact with platform during removal using too much force with deadblow hammer epx is more susceptible to chipping due to brittleness over adhesion causes post processing how the part is handled in post processing is causing the defect post processing root issue problem why defect presents platform removal aggressive resins are delicate in the green state and require gentle handling 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 over adhesion large cross section on the platform more surface area to adhere the part to the platform at the higher base exposure levels hardware the printer, cassette, or platform is dirty or requires maintenance to resolve the defect occasionally, a defect may indicate the printer requires servicing by a carbon engineer root issue problem why defect presents cleaning factory coating on platform the factory coating on a new platform can lead to stronger adhesion 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 increase increase adhesion is increased with more uv exposure 5 exposure brightlining increase increase adhesion is increased with more uv exposure