vacuum powered motor remix

remix of the turbine grinder .
i manage to print original into 82g of plastic.

so far :
-made housing bit slimmer to save plastic
-created semi-parametric openscad file allowing to create own vacuum hose adapter,
and it fuses it with current adapter automatically. example stl output provided fits polish 'zelmer' line of vacuum cleaners (31 to 32mm approx)
-hacked turbine for extra power (not really verified if it gives out any extra but it was easy )
-added parametric axle grinder disc