Table 1.

Roughness values obtained for each slice thickness condition

Slice thickness, μm	RSm, μm	Ra, μm: 90°	Ra, μm: 20°	Experimental step height, μm
100	145.65 ± 0.42	0.006 ± 0.005	13.780 ± 0.790	92.23 ± 6.01
20	28.74 ± 0.22	0.006 ± 0.005	0.820 ± 0.030	18.20 ± 1.19
0.4	0.72 ± 0.06	0.005 ± 0.005	0.012 ± 0.004	0.45 ± 0.05

Open book benchmark pages were evaluated for surface topology using OLS noncontact profilometry as a function of slice thickness following gel fraction removal. Each measurement represents n = 3 benchmarks with n = 6 measurements per imaging length. The experimental step height was calculated for the 20° page and accounts for the effective slicing due to the changing page angle. Propagation of error was accounted for in the experimental step height determination and includes uncertainties pertaining to R_Sm measurements and CLIP fabrication accuracy at inclines (Supporting Information and Figs. S2 and S3).