Without retraction, prints tend to suffer from stringing, where filament leaks during travel moves and creates fine strings of filament connecting surfaces that should be isolated: At the end of the travel move, the extruder will usually unretract to get nozzle pressure back to normal, and then continue printing. A travel move is a movement made by the printer where no filament is extruded. This will usually be done before a travel move. Retraction is when filament is pulled away from the hot end to reduce pressure. If the process helps people, I gladly release it to the public domain. If this concept does have merit, I am very happy for it to be implemented into any and every slicer that wants it. Please try it out and post your feedback in the comments of the video above. Proper implementation in a slicer might be more effective. The post processing script on this page has limitations that actual slicing software does not. It may turn out to be useful, useless, or perhaps need alteration to be more effective. This is the result of a 'what if' thought when printing a tricky model. This concept is covered in detail in the following video: Diagonal Z hop is an experiment It is a simple conversion and has been tested thoroughly, but still use it with caution. ![]() This page allows you to paste in your existing sliced gcode and have it convert it to diagonal Z hop. Your own sliced gcode and the post processor on on this page. If you have a print that keeps disloging from nozzle contact, this may be worth a try. This is currently experimental, and may not be needed in many cases. To provide a compromise between no Z hop, which reduces stringing but has a higher chance of the nozzle knocking the model loose, and Z hop, which does the opposite.
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