Continue to test HIPS materials at statue model. Support materials dissolving looks ok but I found the most difficult point is how to find the best "toolchangeRestartDistance" parameters for individual printer. How stable the printer can be is another key point. I realized my parameters is some longer and result in excessive materials dispensing. Support materials penetrate into model object and excessive model materials also pop out at the restart point of every layer. 0.2 mm layer height at R2X Support materials: HIPS Dissolving by limonene for 24 hrs.