I downloaded the Woody Rotor model and opened it in TC Pro v19. Then re-saved it as an STL file. Closed the file in TurboCAD, activated the Axon 3D Print software from within TurboCAD and then loaded the STL version of the Woody Rotor file through the file open menu in Axon. Axon is the software which is used with Bits from Bytes printers which IMSI/Design sells.
Although Axon initially gave me an 'Errors detected' message, the software opened the model and then successfully ran a 'test' build on the STL file. No issues at all doing this.
Our experience has been that most STL files we receive for actual or virtual printing give some error message when loaded in to the Axon software; however, nearly all print, including those whose geometry was initially generated within TurboCAD.
I also tried to see if I could download the Virtual Modela software from the Roland site; however, I could not find a download link to do this. The free version did not appear to be available anywhere else on the Web either. If you have a download link to the Virtual Modela software, I would happily test this and other STL models generated by TurboCAD with this test software.