so on the skyfactory 3 server i wanted to make manyullyn bolts but i coudnt make them so i went on the enthernet and found how it was made so i tryed to make the same thing on the server but it didnt work so i ask for help.
You should be able to take manyullun tool rods and pour molten iron over them. Is this what you are doing?
So I loaded up an SP test world and I'm slightly confused what you're attempting to make. On SF3 there are no manyullyn bolts found in NEI. It seems like on SF3 1.10 that the only materials you can currently make bolts out of (again based off NEI) are: Wood, Bone, Blaze Rod, Reed, Ice, Endrod and Treated Wood.
In 1.10 tinkers you now have to use the arrow shaft pattern, for shafts you can use only a few materials. Wood,Bone, Blazerod,Endstone, Packed Ice, and Treated wood. You can then pour Manyullun over those to make a Bolt. Tested and working on SF3