S3Ds calculation of wipe is wrong. A firmware, like Repetier/Marlin/Teacup, allways calculates the speed of the fastes axis. What we have in S3D: For example you have 4mm (s_E) retract at 100mm/s (v_E). Max. axis speed is 50mm/s (v_A). d_A is the delta move of the axis. time of retract: t_E = s_E/v_...