A bad edge is an edge (connection between 2 vertices) that is not properly connected to a neighbor. Several bad edges together form a bad contour.
Bad edges / contours are a data error that needs to be fixed in order to use the 3D data for printing.
What can I do to solve the problem?
Bad edges and contours are caused by edges that are too far from each other to be stitched together by our fixing algorithm or missing triangles that result in holes in your model, in intersecting or overlapping triangles. We advise to go back to your 3D modelling software and review your model for any topological errors and reupload the file.
Please also check the STL export settings. You could also try uploading a different file format. You can find the accepted file formats here:
We accept the file formats STL, 3DS, 3DM, OBJ, WRL, MATPART, STP, SKP, SLDPRT, STEP, CATPART, IGES, MODEL, MXP, and MGX.