An unintended discovery by [3DQue] permits overhangs on FDM printers that appear unattainable at first look. The bottom line is to construct the overhang space with concentric arcs. It additionally helps to print at a cool temperature with loads of fan and a sluggish print velocity. Along with the video from [3DQue], there’s additionally a video from [CNC Kitchen] under that covers the method.
If you’d like a fast overview, you would possibly need to begin with the [CNC Kitchen] video first. The essential thought is that you just construct surfaces “within the air” by making small arcs that overlap and get additional and additional away from the principle physique of the half. As a result of the arcs overlap, they assist the subsequent arc. The outcomes are spectacular. There’s a 3rd video under that reveals some latest updates to the device.
We’ve seen an analogous method handcrafted with fullcontrol.xyz, however this can be a Python script that semi-automatically generates the required arcs that overlap. We admit the floor seems to be just a little odd however relying on why it is advisable to print overhangs, this may be simply the ticket. There can be a little bit of warping if options are on high of the overhang.
You don’t want any particular {hardware} apart from good cooling. Like [CNC Kitchen], we hope this will get picked up by mainstream slicers. It most likely won’t ever be a default setting, however it might be a pleasant possibility for components that may profit from the method. For the reason that code is on GitHub, possibly folks aware of the mainstream slicers will bounce in and assist make the algorithm extra broadly obtainable and computerized.
What’s going to you construct with this device? Should you don’t like arcs, try conical slicing or non-planar slicing as a substitute.
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