| Abstract [eng] |
This Master's degree project documents and describes the process of creating a large-format 3D printer for furniture and décor manufacturing. The main problem that this solved was the creation of an inexpensive, large 3D printer whose components are readily available. The project began with a theoretical overview of the existing printer market, a brief history and application. Several printing methods were analysed, and large-scale counterparts were presented. After the analysis of the printing technologies, the Cartesian FDM printing method and technology were chosen as the most suitable. The design began with the frame, kinematic system layout and general requirements for this machine. The extruder was chosen to use pellets as the primary material for manufacturing. For the kinematic system ball screws and linear rails are the main componenets. The required characteristics for it were: a large printing volume, comparatively low cost, ability to be used remotely, and pellets as a printing material. The printer was first designed in SolidWorks CAD and then assembled. The Z-axis corner bracket was simulated under extreme load in the virtual environment, and it was determined that it needs to be reinforced by welding the corners. After assembly, the printer was programmed using Klipper as firmware. Testing began and was successful, the printer worked as expected, bed levelled, and the extruder performed as needed. The overall cost of the printer was reduced by using differently manufactured parts, bent sheet metal, and off-the-shelf components. The overall cost did not exceed 5000 Euros, which was determined to be fair and in the allowable range. This project demonstrated that there is a possibility to create a custom large-format 3D printer without large investments. This project documentation might help readers develop their own large-format printing machine and avoid costly mistakes. |
