If you're an admin on your server or if you're in singleplayer, I can suggest using the command "cheat infiniteweight" which will grant your character infinite weight so you can hold all the required metal ingots and then you can reset your weight using the same command.

Put metal in a storage, drop it on the ground, catch it with a whip

Coloca metal num storage, dropa no chao, pega com chicote

By the way, I would like the craft to be a more expensive well on large rate servers kkkk
I found it too easy to make an army

Alias, eu gostaria que o craft fosse um poço mais caro em servidores de rate grande kkkk
Achei fácil demais fazer um exercito

I play single player, but I rather not cheat. (once I was addicted to cheating and trying to 'loose' the old, bad habit.) So I went for the whip idea, and it worked! And I thank you both for your help! <3

what the hell eats that new tek rex? not element, dust,i shard or any meat. so what it eats?

It should eat meat. But it doesn't? I have the egg in incubation, but until I don't know I can feed it I rather not hatch it.

The feeding issue is likely part of a bug with them as a whole, assuming they'd eat meat same as the other tek dinos in the game. Once bug is fixed they should eat.