Build Your Own SLA/SLS

you can patent an already patented product for a new use Yes, but this is not new use, not by far. Just faster. If they did this 30 years ago, then it would be new use and the whole thing would be patentable, and rightfully so. Let me re-phrase my initial parallel: If I find out that drinking antib...

Their patent must be for the whole machine/apparatus, along with oxygen control and slice surface calculation etc. That's why they talk about software that calculates slice surface area, resin flow etc. in the patent. They wouldn't get the patent if they just said hey we bought this micro film and n...

Great!

The sheets from "Silex" link are Wacker Chemie SILPURAN, and cheap enough to experiment with.

I am trying to understand how the resin can physically replenish the next area to be exposed at so small a layer without a 'lift sequence' Because of the "dead zone", the layer of resin on the bottom that is constantly liquid. Think of it as putting your hand in a bucket of water and touc...

That wil put the fun in FunToDo resin. Finally

It has hardness of a rubber band, yes. Well, it is worth an experiment if it's much cheaper then FA. We are using tension vats after all. Forget silicon, there's no pealing at all, remember? With such high O2 permeability there can be no vacuum and no sticktion whatsoever. And therefore no upward fl...

Vinto you beautiful bastard!

SILPURAN® Film 50 μm, 500 Barrers! More than Teflon AF1600!
And it's water repellent so very non-sticky too.

Yes I saw that. I does say something in the patent about calculating the slice surface and adjusting the resin feed or something like that. So it probably adjusts the Z speed also, that's where 25-100x faster statement probably comes from. Because you can probably move up much faster on those 1x1 mm...

I wouldn't be surprised if there is misleading info in the patent or marketing. That's how it's done. You bury the recipe in as much junk as you legally can. Just look at the 10 Barrer permeability rate. They could have just said a 340 and 990 Barrer membrane is used. Instead they said at least 10 B...