Has anyone done this before? A step by step run through would be really helpful. I have an acoustic guitar I wish to restore and there are 3 cracks that need filling. 2 following the grain on the wood and 1 curved.

Any pointers welcome!

I will admit and be honest, that I have been afraid to answer your question because I did not want to disappoint you because of the potential difficulties in doing the repairs. However, it just dawned on me that I don't know how deep the cracks are that you are talking about.

How deep are they, please? Are they all the way through the wood?

Yea all the way through, apart from one

Use 2 part epoxy resin