Upgrade: Experienced assembler

The Upgrade: Experienced Assembler is a Cart Assembler Upgrade added by Steve's Carts, that increases the fuel cost by 30% and the assembling efficiency by 10%.

Recipe
An Upgrade: Experienced Assembler is crafted with 1 Blank Upgrade, and an Enchanted Book (Efficiency I-V). There are five ways to craft it, where each level of Efficiency lowers the material cost of the recipe;

Usage
The Upgrade: Experienced Assembler's passive bonuses will be applied when it's attached to the Cart Assembler (place it on one of its sides).