The tame of the hoops is done by hand. I don't use machines for this task. It is a meticulous work of several hours to perfectly fit the woods to the precision mold. In this way, exact symmetry is achieved in the instrument case.
To secure the lid to the rings I use pine and cedar pawns. This improves the vibration of the soundboard independently releasing the different areas excited by the strings.
The top and the back are closed using string, reaching precise pressure at all contact points between the pins and the rings for a perfect hold. I make the ornaments for the backs, rings and shovel in various woods, contrasting with some inserts in mother-of-pearl, bone or wood to make each guitar a unique work.
The necks are made of Cedar, Raulí or Maple. Being a vital piece of the instrument for requiring stability and firmness, I resort to woods that ensure a parking of no less than 20 years, fulfilling those conditions. In this way, exact symmetry is achieved in the instrument case. I insert the handle with the box in dovetail.

Selection of backs

Construction of the Keller rosette

This is how I make handmade rosettes for all my instruments. It is a very laborious and rewarding task at the same time. The design is inspired by the "yarará", which inhabits the coasts and estuaries of the Paraná river that flows through my city, San Nicolás de los Arroyos.