Rondo
Rondo is a member of NCR, and also someone who can train people to make armor.
He can be found in NCR near the crafting bench. He is outside the unusual garage door in the fenced off area wearing Brown Ranger Armour.
He Sells the following Blueprints:
Metal Armor MKII - 40000 Tesla Armor - 75000 Metal Mask MKII - 20000 Tesla Helmet - 40000 Combat Armor -100000 Combat Helmet - 60000