here is my setup, Now I am milling the intake cams
They are obtained from ground bar, C45 steel
The most suitable steel would be 115CrV3, which I purchase from GHW modelbau in Germany, in Italy I cannot buy small quantities of this steel, only tons , this steel is easy to harden...
Camshaft project , there are a double overhead camshaft
The square profile on each cam has the function of facilitating the timing, the hole is for spring pin
The shaft is 8 mm supported by 5 needle bearings