[tbenst]

One thing to clarify is that this is appears to be an insightful tweak on a popular form of 3D printing, rather than a new technology all together. This uses a standard vat photopolymerization process with a DLP projector. The key difference is the oxygen permeable window that removes the detachment step between layers. This step is a common point of failure and slowness with current inverted photopolymerization printers like the Form1 and B9 Creator.

This is still a layer-by-layer process: the DLP takes a 3D object and uses a 2D projection (in both the mathematical and physical sense) per layer. Due to pixel constraints, this process will produce objects with similar resolution, although may have more organic edges instead of harder ones. I’d bet the software stack being used still slices the object into layers, so the projector still operates in a layer-by-layer fashion, and likely well below the theoretical 60 or 120 layers / second max dictated by frame-rate. The key advantage here, and it’s a big one, is speed.

It's tremendously exciting to see companies tackling the speed problem in 3DP. In the next two years, we will see a 25x improvement on print speeds from companies like HP, Carbon3D, ...

[samch]

Yes, it does still slice into layers. Those layers were demonstrated in their paper as small as 1µm in thickness.

From the paper:

"Because CLIP is continuous, the refresh rate of projected images can be increased without altering print speed, ultimately allowing for smooth 3D objects with no model slicing artifacts."

"elevated at print speeds of 500 mm/hour"