Fig.9.

Optical clarity of clear resins was enhanced with post-treatments that achieved material transparency similar to glass. Round prints of FormLabs Clear resin were printed with the MiiCraft Ultra 50 405 printer and post-treated as listed in the legend, labels II -VII. (A) The test pieces were positioned over the Pompano Lab logo for qualitative, visual comparison (captured with phone camera). (B) Transmittance was evaluated using an upright microscope. Relative transmittance was compared to the average light transmittance through a 0.17 mm thick glass slide (I). Bars show mean ± standard deviation, n = 3. One-way ANOVA, Tukey’s post-hoc test; *p = 0.0284, **p = 0.0067, and ns > 0.05. (C) To show reproducibility for different resins, technique II was applied to similar round prints in FL BioMed, FL Clear, and MC BV007a resins and evaluated similarly to panel B. All nail polished samples were statistically similar compared to the glass slide control. Two-way ANOVA, Tukey’s multiple comparison test; ***p=0.0003, ****p<0.0001, and ns>0.8.