Instruction manual
Coil Design & Manufacture
How to design and manufacture an X-TERRA coil
Coil Design
Coil design is a long and complex task that requires many steps to ensure the coil 
will continue to work correctly for many years. These steps are generally divided 
into two main teams that initially work independently and then combine their 
skills to nalize the product. The teams are the electronics designers and the 
mechanical designers.
56Understanding your X-TERRA - Coils
Electronic design process includes:
• Calculating and modeling electromagnetic elds
• Designing specications for wire size, type and number of turns
• Manufacturing prototype templates for windings
• Manufacturing prototype windings and soldering to cable 
• Constructing a prototype search coil by attaching windings to 
the template
• Testing, calibrating and programming the microcontroller with 
initial software parameters
• Measuring and rening the software parameters for the 
microcontroller
Mechanical design process includes:
• Designing mechanical CAD (Computer Aided Design) model 
• Constructing mould ow and analyzing the structure using 
specialized mechanical engineering software tools
• Building rapid prototype models of coil housing parts
• Building prototype cables and strain relief
• Building prototype coil using draft electronic specications
• Field testing the prototype coil 










