The paper reports the solution of the parameter synthesis problem of equipment for additive shaping with hybrid layout. There are presented the analysis results of the impact of a moving joint gap in a device upon a value of a shaping error. The investigation results obtained will allow adjusting gaps in movable plant joints in a proper way to obtain an essential accuracy of additive shaping.
The purpose of the work was the study of error appearance in cylindrical surfaces at prototyping. To achieve the purposed specified there were developed sketches of parts of “cylinder” type. On the basis of the sketches there were created 3D computer models in the CAD medium. Cylinder growth took place at an angle of 90° to a basic surface of a working platform with a pitch of a platform z=50 mkm at the thickness of a layer hc=0.005 mkm. Among basic requirements made for cylinders under investigations consist in circularity and cylindrical shape and also surface layer quality according to an arithmetic mean of Ra. Parts were typed according to the technology of quick prototyping (Rapid Prototyping - RP) – Direct Light Projection – DLP of hightemperature resin.
To obtain data calculated there was used a simulator of A.I. Grabchenko which underwent some changes and was used for the technology of DLP rapid prototyping. For more accurate and deep investigations a coordinate measuring Metris LKV machine for the elevation of a surface layer quality was used.
It is evident from the results presented that at empirical investigations of a cylindrical surface grown according to the technology of DLP rapid prototyping and at the computation of shaping error the results convergence makes 96.6.3%.
THEORETICAL INVESTIGATION OF UNITS GEOMETRICAL ACCURACY IMPACT OF PROCESSING EQUIPMENT WITH HYBRID LAYOUT UPON ADDITIVE SHAPING ERROR