For example, this version of Pleccer will also use Arc Overhangs in bridge infill areas, wasting a ton of time. Since it’s a first preview, many things still don’t work perfectly, and barely any arc overhang settings are available through the GUI. There are special support options that find overhang corners and automatically place small supports that significantly reduce warping and only cost a little material and additional printing time. Many of you suggested adding small support pillars at the edges to avoid that and this is exactly what SuperPleccer can do automatically. Yet as soon as the next layer is printer on top, it severely warps. If you watched the last video, you’d know that the arc overhang layer usually prints very flat. On the other hand, the thing that SuperPleccer has are automatic corner supports. But they are writing on their Github page that this will be implemented in the next release.

I got the best results when I turned off thick bridges, didn’t use wiping and turned the bringing speed way down to only 1-2 mm/s! The version I tried didn’t have the recursive arcs yet that Steven initially programmed, and that looked so mesmerizing during printing because the segments got smaller and smaller and, therefore, perfectly filled even the most complex surfaces. They already implemented a very rudimentary version of the arc overhangs where you don’t have to do anything but slice your part, and it will automatically generate arc overhangs on horizontal surfaces, which works quite well. The easiest way to start is with the current Pre-Release Alpha version of SuperPleccer, which is a fork of SuperSlicer and, therefore, basically PrusaSlicer on steroids. Okay, so let’s look at the two arc overhang implementations, how you can use them and how you can help make them even better. It simply blew me away how the community took a concept and used their skill and motivation to make this technology readily available and even improve it! Both early implementations still have their problems, but they also added some remarkable improvements, such as fight warping of the arc overhangs. He made a post-processing script that you can add to any of your existing PrusaSlicer profiles that will automatically detect regular overhangs and replace them with arc overhangs. The other implementation came out of nowhere from a German fellow named Nicolai. The first implementation was done by rvmn in SuperPleccer, which is a fork of SuperSlicer especially optimized for multi-color printing. The last video got a ton of attention, and two separate parties started implementing this new overhang algorithm directly into a Slicer.

Prusa slicer alpha