No not at all. You have to be level 50 to make the weapon you need to start your relic, but at level 20 you can meld anything I think as long as you have the right Grade catalyst.
Unless of course it needs to be that your crafting level has to be the same level as the item you're trying to meld - which it could be, in that case you'll have to ask someone in game to help you with it.