From the Scott Manley vid on it, the full scale orbital version is doing 10000g at the tip when it's at full speed. I guess if you didn't want to go as far you

From the Scott Manley vid on it, the full scale orbital version is doing 10000g at the tip when it's at full speed. I guess if you didn't want to go as far you could lower that but by the time you're at something tolerable to humans I don't think you'd have much energy to play with. You could try significantly increasing the radius to lower the acceleration but I suspect you'd need to get impractically large before you had something that wouldn't kill people.