This is a .3mf Cura file with all the settings to 3D print this mold on an Ultimaker S5 (should also work for an S3)
Multivariable Calculus
Monroe Community College
Visualizing Mathematics in 2D & 3D
Developed with support from the NSF: NSF-IUSE #2121152, DUE-IUSE #1524968 & DUE-CCLI #0736968