The Grand Design

The Grand Design is a tool that allows you to see the dimensions of whatever is selected, place any color wire and actuators, and remove them. It also contains the function of a Ruler. The Grand Design can be used at any part of the screen, regardless of block placement range.

Trivia
This item is a great way to avoid early game traps, such as explosives and boulders, as well as building houses, and a far more compact way of storing all of your wiring tools. This reduces the need of wiring tools to essentially 2, The Grand Design and the Actuator Wand. In total, for all materials needed to make this, and the crafting station, costs 10 gold. This can be made post-Skeletron, permitting a goblin army has been defeated, and you have rescued the goblin. Le Grand Design