I have no actual experience with a belt-bed printer so this is pure speculation. I would absolutely believe adhesion/warping etc would be harder to control with

I have no actual experience with a belt-bed printer so this is pure speculation. I would absolutely believe adhesion/warping etc would be harder to control with a belt, but I also bet it's still within the scope of the usual 3D printer tweaking necessary to get good output. I imagine there are some exciting uses for this sort of printer. I'm imagining a 100mm x 100mm x belt or so sized printer, for the sorts of custom tchotchke applications that hobbyist 3D printers get used for these days it seems like a good fit. It's maybe easier to make one for each of your friends with something like that vs a Makerbot or Prusa. I bet repeatability in part quality would also be slightly easier to dial in vs printing multiple across a full bed. It would also be useful for more serious applications. There are plenty of situations where you want many small parts to just come off a conveyor belt after you hit print on your CAD file. Articulated cable guides and fasteners, wing ribs, connectors for extrusions. Sure it's no revolution, but there are projects I would definitely be more excited to take on if I could automatically manufacture a lot of small parts. I interpret this as a step in that direction. That's appealing.