Hi there I'm completely new to D&D and need a little advice. I'm looking to run a versatile rogue who both dual wields and uses a bow. Currently level 2 and have taken the Dual Wielder feat so my question is how would switching from 2 weapon melee to a bow work during combat. 

Thanks

Hi dengers100 o/

HERE you have the basic rules for object use, which imply that drawing a weapon to use for the attack is part of the attack action.

There is no specific rule on stowing weapons that I can find, but I usually consider it a separate action, as you are doing something with them that is not part of a "bigger" action. What I'd consider a "free" action, though, is letting go of anything held in hand, so to switch from 2 melee weapons to the bow, you would need to let go of the weapon(s) you are currently using and draw the one(s) you want to use (granted you want to also attack on the same turn, otherwise you can just use the "Use Object" action to stow the weapon(s) in your hand and draw the other one).

Brilliant thank you

Your best bet would be to ask your DM.  They may just allow you to stow your weapons as a free action and pull out the other as well.  Every DM is going to be different.  I know a lot of DMs say that you can drop your current weapon(s) and then draw your other weapon and attack.  As long as you are still within 5 ft of your dropped weapon(s) you should be able to drop and pick up and attack.  Ask your DM how he would have you do this and go from there.  I hope this helped.

Thanks for the reply, our DM is also new to D&D so we're trying find the most suitable option for the group but this sounds viable to thank you

You're welcome.  I'll also point out that there are a lot of rules that are really vague.  This is so the DM can change things up to suit the group they are playing with.  Have him keep in mind that all rules are more guidelines than set in stone.  I like to think of the DM as the god of the world you are playing in.  They have ultimate authority on if something happens or not but still have to let the players do their thing as well.  The DM is suppose to place hooks and walls in places to try to get the players to do the story while still making it fun.  Well, have fun and I hope this explains a few more things for you.

It has indeed, thank you very much

Use an Object

You normally interact with an object while doing something else, such as when you draw a sword as part of an attack. When an object requires your action for its use, you take the Use an Object action. This action is also useful when you want to interact with more than one object on your turn.

Dual Wielder

You master fighting with two weapons, gaining the following benefits:

• You gain a +1 bonus to AC while you are wielding a separate melee weapon in each hand.
• You can use two-weapon fighting even when the one-handed melee weapons you are wielding aren’t light.
• You can draw or stow two one-handed weapons when you would normally be able to draw or stow only one.

So with these rules as written you can, with the feat, stow both swords on one turn then pull the bow out on your next turn. Some DM's will allow you to drop the swords to the ground and pull the bow and attack on one turn, but those weapons are now on the ground and could be picked up by anyone or forgotten.

Sorry if this is vague but I believe one of the designers stated they didn't want drawing and stowing weapons to eat action economy. The way I read how it was worded, you can draw and stow weapons (ie switch from your bow to swords and vice versa) without worrying about the action. However, switching multiple times in a round just doesn't fit.