This paper presents a new platform for the development of an open control system for a robotic arm designed for the 3D printing of buildings. This platform uses a very efficient system of automatic code generation which greatly simplifies the process of robotic arm synthesis and analysis while allowing the deployment of custom control algorithms. An experimental workplace, with a reduced and simplified robotic arm, has been developed for the purpose of testing the platform. The mechanical and electrical construction of this experimental workplace is explained. The control system platform is also introduced and data from the test results are included. Both the advantages and disadvantages are discussed at the end.