i had a 14mm screw with 2 mm pitch , but this was before i dissassemble my machine.
now i´ve upgraded her with belts (15tooth around 12mm diameter) witch give me much more speed.
but i have not assembled the machine yet ,so i cannot tell you the speed setting now. maybe this weekend.
whem a have this assembled i´ll put my speed settings here so you can help me!!
thanks for the fast answer
edgar