On 7/28/2012 8:52 PM, andy pugh wrote:
On 29 July 2012 01:41, Jon Elsonel...@pico-systems.com wrote:
I think one of the
commercial units
either shifts the projector or moves the image with a mirror to get
higher resolution.
I am really good at inventing stuff. One of these
On 7/28/2012 8:52 PM, andy pugh wrote:
On 29 July 2012 01:41, Jon Elson el...@pico-systems.com wrote:
I think one of the
commercial units
either shifts the projector or moves the image with a mirror to get
higher resolution.
I am really good at inventing stuff. One of these days I will
On 7/29/2012 2:52 PM, Kent A. Reed wrote:
On 7/28/2012 8:52 PM, andy pugh wrote:
On 29 July 2012 01:41, Jon Elson el...@pico-systems.com wrote:
I think one of the
commercial units
either shifts the projector or moves the image with a mirror to get
higher resolution.
I am really good at
On Jul 27, 2012, at 10:10 AM, Jon Elson wrote:
Not to mention no need for support material.
Not true. In fact, that is about the only drawback to the DLP system,
is there is no
way to make a model with a different (soluble) support material. There
are certainly
some models that have
On 28 July 2012 22:59, Jeshua Lacock jes...@3dtopo.com wrote:
I wonder about using 4 HD projectors or would optical distortion along the
edges be a problem?
You could move the build platform around above the single projector.
(or the projector under the platform)
--
atp
If you can't fix it,
On Jul 28, 2012, at 4:07 PM, andy pugh wrote:
On 28 July 2012 22:59, Jeshua Lacock jes...@3dtopo.com wrote:
I wonder about using 4 HD projectors or would optical distortion along the
edges be a problem?
You could move the build platform around above the single projector.
(or the
Jeshua Lacock wrote:
I guess i should have said that it requires less support material since the
fluid is there to support the area as it is cured. In other words, each
layer is buoyant - unlike the plastic extrusion printers.
OK, in a sense, yes. The cured material will be about the
On 29 July 2012 01:41, Jon Elson el...@pico-systems.com wrote:
I think one of the
commercial units
either shifts the projector or moves the image with a mirror to get
higher resolution.
I am really good at inventing stuff. One of these days I will invent
something for the first time :-)
On Jul 26, 2012, at 10:35 PM, dave wrote:
I like the inverted approach.
More to the point what is the absorbtion max wavelength for the polymer?
In more specific terms what wavelength gives the best polymerization?
Curious minds want to know. ;-)
To put in simpler terms what emission
On 27 July 2012 05:09, Jeshua Lacock jes...@3dtopo.com wrote:
Not to mention no need for support material.
I think you do need support, or isolated islands of material will
either not be lifted and/or wont get dragged and unstuck.
--
atp
If you can't fix it, you don't own it.
Jeshua Lacock wrote:
Yes, I am familiar with the project and DLP printing technology.
I did not know about the patent work-around however.
Yes, the guys on that group, especially Michael Joyce did a lot of work
to deconstruct
what the patents did, and didn't cover, so he could be sure to
dave wrote:
I like the inverted approach.
More to the point what is the absorbtion max wavelength for the polymer?
In more specific terms what wavelength gives the best polymerization?
Curious minds want to know. ;-)
To put in simpler terms what emission source is likely to maximize
Hi
Jon
i want to be sure about how any plastic introduce- ejected from head.
Is this continues flow or this is drop by drop of plastic material?
i think that when build the border of work-part where accuracy is
needed to be drop of material and inside work-part possible continues
flow to do
On 27 July 2012 17:10, Jon Elson el...@pico-systems.com wrote:
will have to develop custom electronics, probably using an FPGA, to modulate
the laser to produce the raster.
Maybe a HAL module?
1024x768x50kHz = 15 seconds per layer. (with scope for efficiences
such as short scans)
--
atp
If
a...@conceptmachinery.com wrote:
Hi
Jon
i want to be sure about how any plastic introduce- ejected from head.
No, this DLP system works with a vat of liquid resin that is hardened by
exposure to light
from the projector. There are no drops, printing head or anything like
that.
The
andy pugh wrote:
On 27 July 2012 17:10, Jon Elson el...@pico-systems.com wrote:
will have to develop custom electronics, probably using an FPGA, to modulate
the laser to produce the raster.
Maybe a HAL module?
1024x768x50kHz = 15 seconds per layer. (with scope for efficiences
On Thu, 2012-07-26 at 22:04 -0600, Jeshua Lacock wrote:
deliver low cost more than anything
There's a good reason why the commercial outfits charge what they do
(other than that they can). But the resolution of DIY printers is now
good enough that second-order stuff like rigidity and control
On Wed, 2012-07-25 at 22:19 -0600, Jeshua Lacock wrote:
like what for instance?
Stabilized build environments, extruders with flow-control valves,
improved filament feeders, less rickety mechanics...
Basically, all the obvious improvements. [grin]
--
Ed
http://softsolder.com
Jeshua Lacock wrote:
I am just curious, like what for instance?
I am monitoring a group working on curing liquid resin with light from a DLP
computer projector. There are a number of machines working, and a guy
has done a kickstarter project that accumulated over $500,000, now he has
to
On Jul 26, 2012, at 6:54 AM, Ed Nisley wrote:
On Wed, 2012-07-25 at 22:19 -0600, Jeshua Lacock wrote:
like what for instance?
Stabilized build environments, extruders with flow-control valves,
improved filament feeders, less rickety mechanics...
Basically, all the obvious improvements.
On Jul 26, 2012, at 10:53 AM, Jon Elson wrote:
Jeshua Lacock wrote:
I am just curious, like what for instance?
I am monitoring a group working on curing liquid resin with light from a DLP
computer projector. There are a number of machines working, and a guy
has done a kickstarter
On Thu, 2012-07-26 at 22:09 -0600, Jeshua Lacock wrote:
On Jul 26, 2012, at 10:53 AM, Jon Elson wrote:
Jeshua Lacock wrote:
I am just curious, like what for instance?
I am monitoring a group working on curing liquid resin with light from a DLP
computer projector. There are a
Hi
I did ask about rapid prototype machine and got helpful directions.
I check about reprap technology
Those all was close but not what i ask for.
I am looking for real - real- rapid prototype. What this means ?
1. rapid prototype should have 2 liquid materials-- main material and
support
On 25 July 2012 08:15, a...@conceptmachinery.com wrote:
Those all was close but not what i ask for.
I am looking for real - real- rapid prototype. What this means ?
It probably means a visit from the Stratasys lawyers.
--
atp
If you can't fix it, you don't own it.
On Wed, 2012-07-25 at 01:15 -0600, a...@conceptmachinery.com wrote:
problem with reprap is that their main idea is to make cheap machine
-under $ 1000- but not real rapid prototype machine.
Although I don't have any inside information, I believe the reason DIY
3D printers have (or don't have)
On 7/25/2012 8:58 AM, Ed Nisley wrote:
As one of my managers put it: You
must first decide whether you're designing a waffle iron or a toaster.
A man wise beyond his years :-)
We seem more in the Saturday Night Live camp: New Shimmer is both a
floor wax *and* a dessert topping.
Regards,
Kent
On Wednesday 25 July 2012 12:02:11 Kent A. Reed did opine:
On 7/25/2012 8:58 AM, Ed Nisley wrote:
As one of my managers put it: You
must first decide whether you're designing a waffle iron or a
toaster.
A man wise beyond his years :-)
We seem more in the Saturday Night Live camp: New
Although I don't have any inside information, I believe the reason
DIY
3D printers have (or don't have) specific features is that most of
the
original patents remain in effect.
Patent in US has only 15 years life. I have US patent personally on my
name - not through any company etc.
I
On Jul 25, 2012, at 1:15 AM, a...@conceptmachinery.com wrote:
Those all was close but not what i ask for.
I am looking for real - real- rapid prototype. What this means ?
1. rapid prototype should have 2 liquid materials-- main material and
support material.
Hi Aram,
Actually, the
On Wed, 2012-07-25 at 11:14 -0600, a...@conceptmachinery.com wrote:
Patent in US has only 15 years life.
That is, unfortunately, incorrect, but the right answer isn't easy to
figure out:
http://www.patentlens.net/daisy/patentlens/2973.html
All those patent that you refer are too old and
On 2012-07-25 18:19, Ed Nisley wrote:
On Wed, 2012-07-25 at 11:14 -0600, a...@conceptmachinery.com wrote:
Patent in US has only 15 years life.
That is, unfortunately, incorrect, but the right answer isn't easy to
figure out:
http://www.patentlens.net/daisy/patentlens/2973.html
All those
On Jul 25, 2012, at 6:19 PM, Ed Nisley wrote:
All those patent that you refer are too old and antiquated.
The earliest 3D printing patents are, indeed, beginning to expire, so I
expect to see a bunch of interesting developments in the DIY field.
Hi Ed,
I am just curious, like what for
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