I noticed you have to craft a full set of gear to unlock the next set, I crafted my full set of heavy gear for lvl 20 I'm lvl 30 I don't see any lvl 30 epic or normal gear I just see the epic lvl 20 gear that is left to craft does the lvl 30 gear unlock after crafting the full set of the epic lvl 20 I'm assuming?

Heavy gear is the last one you can have. So now it's time for you to craft epic heavy items that left unmade.

So the lvl 20 epic gear is the last?

Yes