Super Fast ‘Membrane Based’ 3D

General discussion of topics that don't seem to fit anywhere else.
anthony.julu
Posts: 25
Joined: Fri Aug 29, 2014 12:19 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby anthony.julu » Sat Apr 04, 2015 12:28 pm

Ultimately time will tell. Luckily we won't need to wait for too long for a revelation. The product has been launced. I'm sure we'll have a confirmation soon

Maull
Posts: 1
Joined: Sun Apr 05, 2015 9:35 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby Maull » Sun Apr 05, 2015 9:59 pm

anthony.julu wrote:I did see the LCD in front of the machine. We both know it's the user interface of the printer. I don't think they would refer to that when they say "curing principle: LCD"

I'm not aware of any monochrome LCD with 3840x2160 resolution. So, unless they've ordered some custom made LCD, it's quite possible that they utilize RGB 15.6" LCD from 4K laptops


Imagine a transparent LCD used as an opacity mask. Reference : http://www.mmt.io/transparent-touchscreen-lcd-see-through-display-mirage/ The blacks are completely opaque, you could just use any uv source you wanted, because the lcd mask is doing all of the work. Most of the displays are 1920x1080 except for the 84" its 3840x2160. it would be possible to use a larger display and downscale the masked light in order to hit x/y 66 micron at 400mm. This would require some sort of lens to focus from display size to build size. True dynamic masking via transparent LCD.

EDIT: Just as an aside, has anyone looked into hydrophobic sprays as a vat preparation? http://i.imgur.com/Afys6.gif http://i.imgur.com/HUHSCwS.gif http://i.imgur.com/duAB0y3.jpg Straight from wikipedia: "In industry, super-hydrophobic coatings are used in ultra-dry, surface applications. The coating causes an almost imperceptibly thin layer of air to form on top of a surface." Maybe a surface treatment given to a glass vat could permanently etch the glass with a nano structure making it hydrophobic?

sodium
Posts: 159
Joined: Thu Jan 01, 2015 2:56 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby sodium » Mon Apr 06, 2015 7:56 am

the problem wih these hydrophobic coatings is they are not clear transparent and make the glass blurry, fuzzy, etc ... not good to make prints with fine details. already discussed in other topic.

nc42
Site Admin
Posts: 126
Joined: Wed Oct 22, 2014 3:18 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby nc42 » Mon Apr 06, 2015 8:52 am

Also hydrophobic doesn't necessarily mean low surface energy (ease of release)

broli
Posts: 5
Joined: Mon Feb 09, 2015 12:02 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby broli » Tue Apr 07, 2015 11:50 am

sodium wrote:the problem wih these hydrophobic coatings is they are not clear transparent and make the glass blurry, fuzzy, etc ... not good to make prints with fine details. already discussed in other topic.


If use use structured glass or other materials you will not have this problem. In fact an added bonus would be very little to no reflection of light. See mmy post here about such materials:

viewtopic.php?f=17&t=2788&start=170#p9406

People have tested the neverwet spray with bad results but this does not equate to all forms of nanostructred materials being onworkable. For one neverwet is a chemical soup of binder and nano particles, this soup may interact with the resin leading to all kinds of unwanted effects. Nanostructed glass does not chemically react with the resin. In fact the ideal nano structure would be a combination of cones and holes that go all the way through. This in order to allow oxygen to pass through, something like the attached image. Perhaps the nano holes would in itself be sufficient in creating a "dead zone" allowing the resin to not cure on the glass and being small enough so the resin also does not leak through.
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Phife
Posts: 239
Joined: Fri Jan 17, 2014 5:24 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby Phife » Tue Apr 07, 2015 12:12 pm

broli wrote:
sodium wrote:the problem wih these hydrophobic coatings is they are not clear transparent and make the glass blurry, fuzzy, etc ... not good to make prints with fine details. already discussed in other topic.


If use use structured glass or other materials you will not have this problem. In fact an added bonus would be very little to no reflection of light. See mmy post here about such materials:

viewtopic.php?f=17&t=2788&start=170#p9406

People have tested the neverwet spray with bad results but this does not equate to all forms of nanostructred materials being onworkable. For one neverwet is a chemical soup of binder and nano particles, this soup may interact with the resin leading to all kinds of unwanted effects. Nanostructed glass does not chemically react with the resin. In fact the ideal nano structure would be a combination of cones and holes that go all the way through. This in order to allow oxygen to pass through, something like the attached image. Perhaps the nano holes would in itself be sufficient in creating a "dead zone" allowing the resin to not cure on the glass and being small enough so the resin also does not leak through.


Very interesting, Ive got some very flexible Willow glass and Im going to nanocoat it with a nanocoating i got from a german company. Not sure how well it will work but i'll find out soon. Do you know where one can get this nanostructured glass? Who makes this glass?

Leinad78
Posts: 102
Joined: Wed Dec 04, 2013 3:39 am

Re: Super Fast ‘Membrane Based’ 3D

Postby Leinad78 » Tue Apr 07, 2015 12:47 pm

Koch Chemie based nano-coating?

Phife
Posts: 239
Joined: Fri Jan 17, 2014 5:24 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby Phife » Tue Apr 07, 2015 1:00 pm

Leinad78 wrote:Koch Chemie based nano-coating?


Nanoprom

broli
Posts: 5
Joined: Mon Feb 09, 2015 12:02 pm

Re: Super Fast ‘Membrane Based’ 3D

Postby broli » Tue Apr 07, 2015 3:00 pm

I wouldn't bet on the fact a nano coating would be very resistant to a a resin that's being cured and releasing considerable heat. The advantage of the nanostructured material is that the nano texture is part of the material itself. As I mentioned in the other post the only companies I can find that perhaps could make/give samples are these two:

http://www.rolith.com/applications/self-cleaning
http://www.telaztec.com/index.html

SIDRANA
Posts: 128
Joined: Wed Jan 22, 2014 1:31 am
Location: LOS ANGELES

Re: Super Fast ‘Membrane Based’ 3D

Postby SIDRANA » Tue Apr 07, 2015 9:25 pm

Aculon Technology: Repellency Coating , Adhesion Promotion Coatings, Particle Treatments - Aculon
http://www.aculon.com/technology.php
http://www.aculon.com/video.php
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