Repair an old Martin neck – details

Repair an old Martin neck by extending a truss rod cavity and installing a longer truss rod
Acoustic Guitar I Martin D12-28
An old truss rod
Digging the side of the old truss rod by using a machine
Cutting the truss rod cavity by using a saw
The old truss rod was removed
A new longer truss rod
Prepare to extend the truss rod cavity
Cut a part of body to extend the truss rod cavity
Making a reinforcement
Measuring the part of the body
Making a template for the reinforcement
Gluing
New truss rod cavity at the body
Forming the cavity
Formed
Install a new longer truss rod
After repair