Greig Diesel Motor G1

I made this in metal 30 years ago. Found the drawing and decided to make it printable. So this is a work in progress...
I know its not gonna run in plastic But never the less It can be cnc in metal if you have the possibility.
There Are 25 different bits for it but all has not bene oplades yet, Im testing Them myselft so its a work in progress !!