The forge pass lasts 28 days. You can gain 2 levels each day, which would make it 56 levels. In other words you could opt to ignore as many as 12 of the daily quests to reach the end.

The free to play rewards are on top, the pay-only ones are in the bottom row. The final artifact set is only given to those who paid, unfortunately.

At least one totally F2P clannie has gotten the avatar by reaching level 50. I believe they had to do every single daily quest, every day, and not miss a single thing ever.

I assume you must be missing some day through some chance or time zone thing?

Also, I have bad news. I believe the Free to Play track does NOT get the artifact set at the end. You have to buy the pass to unlock that 6 star legendary set. Basically it is the avatar people do it for.

I have played every day the forge pass is running. I do all the quests offered and collect all the rewards for FTP as I go and have never missed one day while it's on, as I play daily. It never goes passed lvl 45, maybe lvl 46 on my account for some reason. As for the artifacts, I was wondering if those are for the PTP's. Now I know - thank you (-: 

I buy the Forge Pass each time.  I buy it to get the 50% boost for HP and silver.  I use the last week to grind a lot of silver.  Its worth the small fee they charge.  

Well, you're missing quests somewhere. I paid for forge pass only once, did it ftp every other time, and always got to level 50 with 1-2 days to spare.

Is it possible you've completed some quests which you then forgot to pick up before daily reset? The interface of this is a bit silly, but you have to click the quest to actually get the forge pass levels.

You are skipping some of the daily quests.  I've never purchased the pass, and never not gotten to level 50.  I think there's usually 3-4 days to spare.  But you do not get the artifacts shown for reaching level 50 unless you purchase the pass.