Overcure

overcure additional resin cured at the edges of a slice in the xy plane how to identify overcure can be diagnosed as follows features appear too large or distorted holes or small features are too small engraved or embossed text appears blurry 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, 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 resin hardware ensure all of the printer's optics are clean for a clear path for uv light verify the cassette window is cleaned properly, without dust, spots, or streaks verify the projector path is clean m1/m2 printers check the deck glass m3/m3 max/l1 printers check the projector lens reference cleaning instructions for your printer m1/m2 printer docid 6pwz7jx jb4l5 xwkoj m3/m3 max printer docid 3yymggihdvaowg01eay6l l1 printer docid\ on8otjugbxoth6qmqw2om 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 layout add more space between parts; increase padding in auto layout layout scale use scale to bring part features into your specification range by adjusting the x and y scale factors automatic scale factors account for inaccuracies in the majority of cases, but tweaking the scale factor further may help dial in your feature sizes in some cases design use dls design guidelines for holes in the xy plane to bring part features into your specification range reference the tips for optical effects in dls design guidelines for horizontal holes (xy) design print plan adjustments reference print plan adjustments for guidance on the following parameters 5 exposure parameters exposure timing parameters exposure timing if problems persist, please reach out to carbon support explanation & causes explanation overcure xy plane overcure is caused by light scattering horizontally at the edges of a slice, where the material is thinner and less opaque this scattered light cures resin adjacent to the part and typically causes an additional 0 010 0 075mm of part curing this effect is more significant in smaller cavities due to higher local temperatures overcure xy plane 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 layout parts are too close together when parts are not spaced properly, light can scatter causing more overcure than expected 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 cassette window is dirty dust, spots, or streaks can cause uv light to scatter causing more overcure than expected cleaning deck glass is dirty (m1/m2) projector lens is dirty (m3/m3 max/l1) dust, spots, or streaks can cause uv light to scatter causing more overcure than expected 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 that is expired may not mix properly which could cause light to scatter and create more overcure than expected past pot life resin that is past its pot life may begin to partially cure which could cause light to scatter and create more overcure than expected mixing one part resin not mixed pigment that is not fully emulsified in the resin could cause light to scatter and create more overcure than expected 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 more uv exposure increases overcure