I might do some sort of script.

Cleaving the rotor solid on the xz plane, and measuring the Open Angles of the 3 blades there, shows Opening Angles of 60 degrees, 47.1616 degrees (instead of 45 degrees), and 23.539 degrees (instead of 30 degrees. Probably due to the way sweep works? May try a variable pitch helix, or changing the pitch length?
The 60_45_30 version seems to have better characteristics:

https://www.mdpi.com/1996-1073/16/1/385/pdf
https://www.mdpi.com/1996-1073/16/1/385

For one blade, at zero degrees (max radius), the angle with respect to the center axis, is 60 degrees,
at 120 degrees, the angle with respect to the center axis, is to be 45 degrees,
at 240 degrees, the angle with respect to the center axis, is to be 30 degrees.
So the helix, would have to be adjusted somehow, to achieve the desired 45 and 30 degree angles...

The following paper shows better performance with angles 60_50_25 degrees:
https://www.academia.edu/download/90082150/Energy_Paper_acceptance_1.pdf
"Finally, it is found that the best blade angles of the modified
ASWT of a3 = 25 , a2 = 50 ,and a1 = 60 with a suitable thickness
of 2 mm."

The turbine could be left hand, or right handed...

- Brian