Windell, I’ve looked to ensure the horn is clear when in the drawing position and redrew the file with constant speed and it seemed to help. I should clarify chatter, when the pen is raised and the carriage is traveling along the X or Y axis between objects this chatter is almost like the belt skipping the gear or biding. I’m attaching a link to video as I may not be accurately describing the issue. https://vimeo.com/172899429