Gobong Choi & Sungmin Kim
An adaptive modeling method has been developed to improve the accuracy of an FDM type 3-D printer especially when printing complex small objects. The thermal and flow properties of PLA, ABS, and HIPS were measured using various types of rheological analysis. The relationship between those results and dimensional errors were analyzed. From this relationship, calibration factors were calculated for correcting the error between virtual and actual models. Image processing software has been developed to measure the dimension of printed samples. A model generation software has been developed to generate calibrated models using adaptive modeling method. The efficiency of system was verified through statistical analysis on the difference between the models with and without calibration.