Richard Meyrick from Usk in Monmouthshire began to design and make his own guitars because he couldn't afford to buy a decent instrument.
He told Jamie Owen and Louise Elliott on BBC Radio Wales that the key to a good guitar is the quality of the wood - cheap models are made out of plywood while quality instruments are made from hardwood and spruce.
Richard has a workshop in an old barn in Usk which he shares with other craftsmen. Most of his customers are from the UK but he has had enquiries from Europe.
He says designing the guitar is a big thrill but the biggest thrill of all is seeing a customer pick up the guitar for the first time and play it.
Richard also showed his finger-picking folk style of playing with a rendition of Freight Train.