Toroidal winding calculations

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Toroidal Winding calculations
Setting up a new product to wind on a toroid machine, can involve a series time-consuming calculations.
The calculator shown below aims to be a guide in simplifying this process. Simply enter core dimensions and wiresize and the calculator will find wire length to load, and theoretical finished wound core dimensions. The resulting figures can also be used to decide the appropriate size of shuttle.

Input values			Output data
Core dimensions			Core dimensions
Outer Diameter  "OD"		mm	Theoretical Finished Outside Diameter  "OD"		mm
Inner Diameter "ID"		mm	Theoretical Finished Inner Diameter "ID"		mm
Height "HT"		mm	Theoretical Finished Height "HT"		mm
Winding specification			Winding specification
Number of turns		turns	Length per turn		mm
Wire Size		mm	Total length Millimetres		mm
			Total length Meters		M
			Total length Feet		Ft
			Turns per layer at wire pitch		Turns
			Number of layers		Layers
			Shuttle load turns
			4" shuttle		Turns
			6" shuttle		Turns
			8" shuttle		Turns
			10" shuttle		Turns
			13" shuttle		Turns