As shown in
Figure 2, swiping is demarked by the translation of the previously printed layer from its designated location as the next
layer of powder is swept across the build bed.Swiping essentially
destroys the part, leading to a failed build. A number of layer
thickness tests were conducted, with each set of specimens
being ranked on the severity of swiping.We determined that the
most appropriate layer thickness for the recycled glass system
was approximately 140mm (,0.00500), which supports reliable
builds despite violating the usual rule of thumb that layer
thickness should be about three times the particle size. Further
investigation of particle size and its relation to layer thickness
and spread quality is necessary.