IanJohnson wrote:

FelixP wrote:

Because we really need to be able to print those Yoda busts faster. /sarc

Are you kidding, nobody prints Yoda busts with SLA.  It's all about the Eiffel Towers.  The whole point of making resin printers cheaper and faster is so that there can be a tiny Eiffel Tower in every home.

And after thinking about this a bit, I do wonder how the heck you use a resin printer for objects that have big solid chunks that would get some sort of mostly hollow infill on a "normal" filament printer. Seems like anything like the infill would just fill up with resin. I think this is why we see so many Eiffel Towers and lacy hollow balls and such :-).

when you do a model for a resin printer, in most case you try to make the model hollow with some holes on the side to evacuate pressure (for big models) and liquid resin

FelixP wrote:

Because we really need to be able to print those Yoda busts faster. /sarc

Are you kidding, nobody prints Yoda busts with SLA.  It's all about the Eiffel Towers.  The whole point of making resin printers cheaper and faster is so that there can be a tiny Eiffel Tower in every home.

And after thinking about this a bit, I do wonder how the heck you use a resin printer for objects that have big solid chunks that would get some sort of mostly hollow infill on a "normal" filament printer. Seems like anything like the infill would just fill up with resin. I think this is why we see so many Eiffel Towers and lacy hollow balls and such :-).

The thing Is resins can be made of almost any polymer.

Uhh, what? if that is true, then why are all the resins out there really weak? Why isn't there a resin with comparable mechanical properties to ABS?

Because we really need to be able to print those Yoda busts faster. /sarc

Are you kidding, nobody prints Yoda busts with SLA.  It's all about the Eiffel Towers.  The whole point of making resin printers cheaper and faster is so that there can be a tiny Eiffel Tower in every home.

Manx wrote:

clagthink of it this way they have a semi permiable lens that allows oxygen to pass one way into the resin. that oxygen rich area which is very small prevents the resin from bonding when hit with the laser or the image to be printed.as the plate is removed you can print nearly continuously because the surface of the reservoir does not come into contact with the actual print. preventing the need for the machine to losen the print then move and reprint losen reprint.

This allows for a continous stream of printing.

Yea, but some resin printers work by pulling the printed object down into the pool of resin and using the UV light on the surface, so I'm not sure why they couldn't be 100 times faster and print thousands of different kinds of materials as well (while needing a much larger reservoir, of course :-).

By using an air gap  at the bottom they have greater control of the process and still maintianing speed
The thing Is resins can be made of almost any polymer. So in theory they could make a ferrous resin with nematic properties, we may soon be living in an all plastic resin world.

Manx wrote:

clagthink of it this way they have a semi permiable lens that allows oxygen to pass one way into the resin. that oxygen rich area which is very small prevents the resin from bonding when hit with the laser or the image to be printed.as the plate is removed you can print nearly continuously because the surface of the reservoir does not come into contact with the actual print. preventing the need for the machine to losen the print then move and reprint losen reprint.

This allows for a continous stream of printing.

Yea, but some resin printers work by pulling the printed object down into the pool of resin and using the UV light on the surface, so I'm not sure why they couldn't be 100 times faster and print thousands of different kinds of materials as well (while needing a much larger reservoir, of course :-).

By using an air gap  at the bottom they have greater control of the process and still maintianing speed
The thing Is resins can be made of almost any polymer. So in theory they could make a ferrous resin with nematic properties, we may soon be living in an all plastic resin world.

clagthink of it this way they have a semi permiable lens that allows oxygen to pass one way into the resin. that oxygen rich area which is very small prevents the resin from bonding when hit with the laser or the image to be printed.as the plate is removed you can print nearly continuously because the surface of the reservoir does not come into contact with the actual print. preventing the need for the machine to losen the print then move and reprint losen reprint.

This allows for a continous stream of printing.

Yea, but some resin printers work by pulling the printed object down into the pool of resin and using the UV light on the surface, so I'm not sure why they couldn't be 100 times faster and print thousands of different kinds of materials as well (while needing a much larger reservoir, of course :-).

This allows for a continous stream of printing.

It was interesting, but I still haven't managed to figure out exactly how this is different, though the explanation of the dead zone almost makes me think I might understand what is going on someday :-), but now I have no idea why he claims so many more kinds of resins are possible with this. It still has to be something that reacts to light, doesn't it?

http://www.ted.com/talks/joe_desimone_w … 25x_faster