Abstract:

Fused deposition modeling (FDM), a technique of rapid prototyping, is based on filling to process the cross-section of each part. Choosing a correct algorithm for filling path planning is very important because the filling path directly influences the quality and processing efficiency of each part. Complex scanning, an algorithm recently used for path planning, attracts more and more scholars’ attention due to its advantages. Based on the advantages of fractal and offset fillings, we present a complex filling optimization method. In order to reduce the switching frequency and stringing nozzles to ensure the accuracy and strength of molded parts, we use a divide and conquer algorithm to achieve optimal path generation, and it has been successfully used in actual processing.

Key words: FDM, compound-filled path, offset filling, fractal filling, optimal trajectory