D&Dtools1

Benefit

You can create any psionic weapon, armor, or shield whose prerequisites you meet. Enhancing a weapon, suit of armor, or shield takes one day for each 1,000 gp in the price of its psionic features. To enhance a weapon, suit of armor, or shield, you must spend 1/25 of its features' total price in XP and use up raw materials costing half of this to price. See Chapter 7: Psionic Items for descriptions of psionic weapons, armor, or shields, the prerequisites associated with each one, and prices of their features. You can also mend a broken psionic weapon, suit of armor, or shield if it is one that you could make. Doing so costs half the XP, half the raw materials, and half the time it would take to empower that item in the first place. The weapon, armor, or shield to be enhanced must be a masterwork item that you must provide. (Its cost is not included in the above cost.)