Too Human

Crafting blue prints does cost credits. Keep all the blueprints you find earlier in the game (weaker armor and weapons) and any blueprints you actually want to use later in the game. When you have enough credits, just start crafting these. You can keep up to 10 blueprints per weapon and armor, so with 6 slots for each that's 120 blueprints possible. Even with keeping good weapon and armor blueprints you want to craft and equip, this leaves you with plenty of blueprints to craft.

If you construct weaker weapons and armor as you play through, you'll find you often done have enough credits to actually craft those weapons and armor you do want to equip.

When you kill an enemy or search a totem, you may find a blueprint. This can be used to make a weapon or piece of armor.

A piece of dramatic music will play when you collect a blueprint. The music will change depending on the rarity of the item. It will sound more "epic", kind of like an intense orchestra.

The rarity of weapons, armor, runes, blueprints, etc. depends on the item's color:

* Grey - Common
* Green
* Light Blue
* Purple
* Orange
* Red - Rarest

Press "Back button" to access your equipment menu and press "LT" or "RT" to cycle through the various tabs in order to find either the weapon or armor/blueprint tab. Press "A button" to construct an item from a blueprint, providing you have the required bounty to construct one. For this achievement, you must construct 100 blueprints in this fashion.

Obviously, it's cheaper to do this with the more common items. For example, the red blueprints cost one-million bounty+ to construct, whereas the more common colors will cost far less to construct.

(FYI-I used the Too Human 360 achievement guide Credit for this solution goes to Hayden)
http://www.xbox360achievements.org/forum/showthread.php?t=88...

(before you give me a "thumbs down" on this or any other solution. Tell what I can do to fix it)