MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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Another way to use your own texts is importing the blank stl with OpenScad and adding texts.
The only thing I had to do (and I really don't understand why) is "fixing" the blank.stl with https://service.netfabb.com/login.php.
(I attached the fixed one).
If I don't, I had an error on OpenScad : "ERROR: CGAL error in CGALUtils::applyBinaryOperator difference: CGAL ERROR: assertion violation!".
So put "stand.scad" and "blank_fixed.stl" in the same folder, open stand.scad, customize text, fonts, heights, as you need and print.