Custom machining with CNC milling machine
The new and constantly changing rules of the auto parts market means that we have to face up with two variables that work in inverse proportionality: the prices drops increasingly corresponds to a product that does not meet the demands of some owners and, more generally, in spare parts worst than before that require more effort to be installed, due to imperfect dimensions. The market for tuning parts makes no difference, where the prices drops gives the enthusiast back the showiness and not the quality.
Making custom components with a CNC machine, as in the case of the MAG-CX3 500, responds to this need. This is the beginning of the self-construction of a wheel spacer dedicated to BMW vehicles. A tailor-made work that allows the owner to decide precisely the desired widening of the car, the most appropriate color and the certainty of a solid machining with specific technical characteristics of uniformity and continuity, in order to guarantee the highest standards.
The starting point was the measurement phase of the wheel hub with relative working measurements, attention to the wheelbase and harmonization of the joint, for a perfect match in hundredths of a millimeter of the unsprung masses on the car and realization of the the 3D model with the help of a dedicated CAD software.
The process then moved to the digital world where the various steps were made with a design software, starting from the approval of the design, which must be supported by a detailed FEM report (Finite Element Method), the focus moves to the industrialization step that will see a CAM software as protagonist, capable of generating tool paths that are readable and executable by a CNC milling machine. It should be underlined that for constructional needs a support workholding was designed and built to ensure correct clamping during the machining phases of the raw material.
The milling lasted 3 hours to take care of every single bevel and finishing, enhancing the characteristics of MAG-CX3 500 which thanks to the precision and robustness given by the granite countertop (grade 2) and with a frame that minimizes vibrations and oscillations, it allows a chip removal precise to the hundredth of a millimeter. And being able, moreover, to count on the use of the 6 tools changed in total pneumatic automation.
The final step, before installation on the car, tells us about a spacer of absolute technical value.
After closing the last bolt, it is the beauty of the car, only for track use, and the owner's happiness that guarantee the perfect outcome of this custom made spacer.