After so long time, I still cannot make a CT 5*5. 

i only miss the JsonManager class file to get the recipe from a json file. I tried to take a look at RecipeManager, but I didnt understand anything.

Did someone done it yet and could help me?

It's been done a thousand times over. Create the json file as you would any other crafting recipe and set the width and height via ShapedRecipe::setCraftingSize in your common setup event.

16 hours ago, ChampionAsh5357 said:

It's been done a thousand times over. Create the json file as you would any other crafting recipe and set the width and height via ShapedRecipe::setCraftingSize in your common setup event.

Could you link some project with a CT 5*5.

I didn't understand how let CT get the recipe from JSON

16 minutes ago, dyno said:

I didn't understand how let CT get the recipe from JSON

That's not a crafting table problem, that's an implementation problem. You can look at ShapedRecipe to know how it gets the information from JSON and WorkbenchContainer on how to apply it.