Tired of the capitalist approach of the company, he put an end to the venture and moved to the coastal suburb of Nova Viçosa. There he began to create furniture that was later called Móveis Denúncia – protest furniture. Inspired by both the local craftsmanship and the natural resources of the area, his large wooden pieces were often made from a single tree trunk. Caldas was demonstrating for future generations the variety and magnificence of the forest.

Caldas was a radical creator. His work always aimed to find essentialist aspects at the root of each of his projects, whether in the exploration of the natural environment or his conceptualisation of indoor space as a synergy of the senses. His engagement with Brazilian craftsmanship and natural materials underlies the character of all his work.