From UoGuide.com The Sewing Machine & Smithing Press are house-addons that can be used in conjunction with the tailoring and blacksmithy skill, respectively. The machines will hold 5000 charges of their respective tools. Add charges to the Sewing Machine by dropping sewing kits on the stool. Add charges to the Blacksmith Press by dropping smith’s hammers, sledge hammers, or tongs on the crates. Runic, Ancient, or specialty crafting tools cannot be added to the power tools. Security can be set on the power tool to limit who can use and deposit tools into the attached stool or crates.