paulson games wrote:
I would be curious to see how much of a time difference there is between the solidscape machines and perfactory styled ones.
The difference is huge - Solidscape is at least 4 times slower (but support structures are not an issue). Still direct comparison does not make sense in this matter as Envisiontec and Solidscape use completetly different technology, method to build models.
Which is kinda my point - I doubt we can see huge speed progress without changing the method (simplyfying a lot - with jet tech it comes down to the speed at which the jets can move, in case of "light cure" systems how long you have to leave the layer exposed to light before it cures). There are 2 (ok, 3 if you treat sintering as separate one) main methods that have not changed much in a while.
It's like with regular printers - ok, maybe my home laser printer has nicer casing and is smaller than the one I used in 90's but it aint't faster

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paulson games wrote:
I also wonder if somebody will figure out a way to design a machine head for the printer which can put down multiple layers in a single pass which would shorten the build times. Or if they can somehow layer the solid parts with one head while doing the fine details with a secondary one allowing them to use greatly differing sized nozzles.
It may be possible that they come up with a completely separate process at some point that makes any of the jet system antiquated. Some of the medical printers have some really amazing technology behind them but when they can go for as much as half a million per machine it'll likely be unavailable for households even with massive price reductions.
That would be tricky - as each jet would have to operate independently on all axes. Wonder how moving the jets would have to be worked out - typical xy rails would be impossible.