One of the major obstacles to the adoption of 3D printing in many markets has been the variability of its output — in terms of dimensional accuracy and material properties such as porosity, strength, temperature, and chemical resistance. But the additive manufacturing industry is launching a full-scale assault on the problem. It consists of a three-pronged effort using hardware, software, and management systems.
Efforts to improve the printing process can involve conventional (subtractive) manufacturing tools, which are being used to improve consistency layer by layer. The machines of 3DEO, another Californian printer manufacturer, have sensors to leverage real-time data on dimensional accuracy and process parameters to optimize prints. Based on this data, 3DEO machines utilize a cutting tool (a micro end-mill) that trims edges and internal features, such as lattices and holes, to achieve the required tolerances and desired geometries. The trimming is done layer by layer.
Read the full article here: How to Make 3D Printing Better