On Tuesday 05 June 2012 09:08:34 Joachim Franek wrote:
My suggestion is to use a pcb board mechanically attached to the extruder
with a cpu and eth/rs232.
I have played with a FTDI 4232 mini modul.
With libmpsse-1.1 I see spi clk and data changing
with a write command.
With libftdi-0.20
On 4 June 2012 19:18, Dave e...@dc9.tzo.com wrote:
Makes sense. Thermocouples are the standard on all of the commercial
plastic extruders I have worked on.
By the time you do linearization of a TC and cold junction compensation,
you might was well buy a cheap PID controller
As an
what's that smell? sniff sniff. smells like something taxable.
--- On Tue, 6/5/12, Jack Coats j...@coats.org wrote:
From: Jack Coats j...@coats.org
Subject: Re: [Emc-users] OT: and Soapbox: 3D Printer Mods?
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date
: and Soapbox: 3D Printer Mods?
On 4 June 2012 19:18, Dave e...@dc9.tzo.com wrote:
Makes sense. ?Thermocouples are the standard on all of the commercial
plastic extruders I have worked on.
By the time you do linearization of a TC and cold junction compensation,
you might was well buy a cheap PID
what are 'FDN-ers'?
--- On Wed, 6/6/12, Peter C. Wallace p...@mesanet.com wrote:
From: Peter C. Wallace p...@mesanet.com
Subject: Re: [Emc-users] OT: and Soapbox: 3D Printer Mods?
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Wednesday, June 6, 2012, 5:51 AM
On 6 June 2012 14:21, charles green xxzzb...@yahoo.com wrote:
what are 'FDN-ers'?
I can't type. FDM builders was what I was trying to convey.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 6/6/2012 6:01 AM, andy pugh wrote:
On 4 June 2012 19:18, Davee...@dc9.tzo.com wrote:
Makes sense. Thermocouples are the standard on all of the commercial
plastic extruders I have worked on.
By the time you do linearization of a TC and cold junction compensation,
you might was well
On 6 June 2012 14:40, Dave e...@dc9.tzo.com wrote:
Still, that seems like a lot considering I can buy something like this
Is there even really any need for PC control of the setpoint? If you
can let the hardware control the temperature then things like
http://www.ebay.co.uk/itm/180830006347 for
On Tuesday 05 June 2012 02:28:48 Jeshua Lacock wrote:
Personally what I would like to see is:
• Compatible with existing popular slicing software, filtering with a script
is acceptable (but of course not ideal), for instance using the python script
at:
Hi Joachim,
On 05.06.12 09:08, Joachim Franek wrote:
• 3x temperatur measurement, 12bit resolution (2x nozzle, 1x feader housing)
Is the high resolution needed because the PID temperature controller
needs something like ten times the resolution the control loop is
intended to achieve, much like
On Tuesday 05 June 2012 09:08:34 Joachim Franek wrote:
Alternatives to avr based boards are:
- Raspberry Pi
I have in the moment a rpi board from a fried in my hands and
have seen it booting to a command login.
Looking to
http://elinux.org/Rpi_Low-level_peripherals
I think there are for a
I forgot:
http://elinux.org/RPi_Expansion_Boards
Maybe this is a stating point:
http://zuzebox.wordpress.com/2012/03/14/userport-for-raspberry-pi-v0-10/
Cheers,
Joachim
--
Live Security Virtual Conference
Exclusive live
On Tue, Jun 5, 2012 at 2:08 AM, Joachim Franek joachim.fra...@pibf.dewrote:
I am not sure how the slicing software handles the extruder stepper
motor, but I would guess it is with G Code.
http://www.reprap.org/wiki/EmcRepStrap
My suggestion: we change the postprocessor of the slicing
There is a big difference between what is legal, what you can get away
with, and what actually occurs.
If you copy a patented device and use it in your garage for your own use
(not making any sales with it), no one is going to come after you if no
one knows it exists.
Even if the company who
If you have a few minutes, this is a free assessment from the US Government for
evaluating intellectual property.
http://www.uspto.gov/inventors/assessment/index.html
... Jack
Whatever you do, work at it with all your heart... Colossians 3:23
You don't manage people; you manage
On Sun, 2012-06-03 at 21:08 -0400, Dave wrote:
buy one or two PID controllers.
The slicing software can produce different extrusion temperatures for
different layers (or classes of layers), so the printer needs
programmatic control over *everything*. You may as well integrate all
that in
On 6/4/2012 7:20 AM, Ed Nisley wrote:
Methinks anyone working on such a contraption would receive a visit from
a nattily attired lawyer who would explain his employer's view of the US
patent system...
Who hold the patents?
Dave
On 6/4/2012 7:20 AM, Ed Nisley wrote:
The slicing software can produce different extrusion temperatures for
different layers (or classes of layers), so the printer needs
programmatic control over*everything*.
I did not know that. Some PID controllers (maybe some cheap ones??)
have Modbus
On Mon, Jun 4, 2012 at 8:52 AM, Dave e...@dc9.tzo.com wrote:
If anyone has a cheap way to do effective - accurate temperature
measurement - on the cheap, I'd like to know about it. :-)
cheap=thermistors. Who cares they are non-linear if you're using a digital
controller? ;) Linearize them
On Mon, 2012-06-04 at 08:44 -0400, Dave wrote:
Who hold the patents?
The big players that have been doing 3D extrusion since the mid 80s, the
ones with positive cash flow and actual engineering teams. The Wikipedia
article has a list:
https://en.wikipedia.org/wiki/3D_printing#Industrial_uses
On Jun 4, 2012, at 7:14 AM, Stephen Dubovsky wrote:
On Mon, Jun 4, 2012 at 8:52 AM, Dave e...@dc9.tzo.com wrote:
If anyone has a cheap way to do effective - accurate temperature
measurement - on the cheap, I'd like to know about it. :-)
cheap=thermistors. Who cares they are
On 6/4/2012 1:51 PM, Jeshua Lacock wrote:
On Jun 4, 2012, at 7:14 AM, Stephen Dubovsky wrote:
On Mon, Jun 4, 2012 at 8:52 AM, Davee...@dc9.tzo.com wrote:
If anyone has a cheap way to do effective - accurate temperature
measurement - on the cheap, I'd like to know about it. :-)
On Monday 04 June 2012 19:53:48 Jeshua Lacock wrote:
... and I am all for doing things the right way,
I agree.
do you think it makes sense if we all collaboratively work towards a common
goal?
Yes.
It just seems that several people are going in several directions, and we
might all
On Mon, 2012-06-04 at 11:53 -0600, Jeshua Lacock wrote:
you are basing this on what?
Rumor, supposition, hearsay, random tales, and watching the slow-motion
destruction of mobile phone innovation through internecine IP warfare.
The fact that a judge had to rule that APIs can't be copyrighted
On Mon, 04 Jun 2012 17:05:40 -0400
Ed Nisley ed.08.nis...@pobox.com wrote:
On Mon, 2012-06-04 at 11:53 -0600, Jeshua Lacock wrote:
you are basing this on what?
Rumor, supposition, hearsay, random tales, and watching the
slow-motion destruction of mobile phone innovation through
On Jun 4, 2012, at 2:47 PM, Joachim Franek wrote:
do you think it makes sense if we all collaboratively work towards a common
goal?
Yes.
Excellent.
It just seems that several people are going in several directions, and we
might all benefit from a shared strategy.
It is time to tell,
On Jun 4, 2012, at 5:41 PM, dave wrote:
It has always been my understanding that you can make a patented
device; you just can't sell it. I don't think this precludes using that
patented device to make things which you sell.
Good point.
Also, as far as I know, Makerbot et al have not had
On Monday, June 04, 2012 09:13:21 PM Ed Nisley did opine:
On Mon, 2012-06-04 at 11:53 -0600, Jeshua Lacock wrote:
you are basing this on what?
Rumor, supposition, hearsay, random tales, and watching the slow-motion
destruction of mobile phone innovation through internecine IP warfare.
The
On Mon, 2012-06-04 at 18:31 -0600, Jeshua Lacock wrote:
Also, as far as I know, Makerbot et al have not had
much of a legal battle so far.
True, but now that they're doing something over $5 M/yr with substantial
funding, they look more like a target. Again, I know nothing other than
the
On 06/04/2012 08:31 PM, Jeshua Lacock wrote:
On Jun 4, 2012, at 5:41 PM, dave wrote:
It has always been my understanding that you can make a patented
device; you just can't sell it. I don't think this precludes using that
patented device to make things which you sell.
IANAL and I don't play
dave wrote:
It has always been my understanding that you can make a patented
device; you just can't sell it. I don't think this precludes using that
patented device to make things which you sell.
This has been gone over a number of times on other lists, if you use it
in commerce,
the
On Mon, 04 Jun 2012 22:05:06 -0500
Jon Elson el...@pico-systems.com wrote:
dave wrote:
It has always been my understanding that you can make a patented
device; you just can't sell it. I don't think this precludes using
that patented device to make things which you sell.
This has
These printers are very clever and the products entertaining, but I have
issues with how they fit in with the big picture. Plastic, over a the
long run has very limited utility, but never goes away and stays toxic.
What is going to happen to all of these busts of Yoda once the
entertainment value
For the most part they are trying to move to PLA, which has several
advantages, the most important being it's biodegradable.
http://en.wikipedia.org/wiki/Polylactic_acid
Thanks,
DougM
On Sun, Jun 3, 2012 at 9:54 AM, Kirk Wallace
kwall...@wallacecompany.com wrote:
These printers are very
And to some extent, MOST plastic is recyclable.
We DONT do it, typically because it is (1) inconvenient, (2) un-economical
There are projects like the filabot (a kickstarter project) that is
coming up with a re-grinder and filament maker for personal use.
I look forward to the day that
On 3 Jun 2012, at 18:46, Jack Coats j...@coats.org wrote:
And to some extent, MOST plastic is recyclable.
We DONT do it, typically because it is (1) inconvenient, (2) un-economical
Pretty much all my domestic plastic goes in the recycling bag. I think that is
true of most of Europe.
I do some work periodically at a plant that recycles sheet plastic -
like shopping bags. It is all low density polyethylene.
They process hundreds of tons of it per day and they are expanding.
Their finished product is pellets which are used to make more sheeting.
Considering that their
And the claims of peak petroleum are bunk and a bill of goods in an attempt
to control us and fleece us.
On Jun 3, 2012 1:53 PM, Dave e...@dc9.tzo.com wrote:
I do some work periodically at a plant that recycles sheet plastic -
like shopping bags. It is all low density polyethylene.
They
On Sun, 3 Jun 2012 19:15:07 +0100
Andy Pugh bodge...@gmail.com wrote:
On 3 Jun 2012, at 18:46, Jack Coats j...@coats.org wrote:
And to some extent, MOST plastic is recyclable.
We DONT do it, typically because it is (1) inconvenient, (2)
un-economical
Pretty much all my domestic
After working in the oil patch most of my career, it doesn't really matter
what we 'think', it
matters what we are charged. ... If we don't want it, we don't have to buy
it.
There are many centuries of $500/barrel oil (in todays $$) and no
$14/barrel oil available.
The price is what the market
On Jun 3, 2012, at 10:54 AM, Kirk Wallace wrote:
These printers are very clever and the products entertaining, but I have
issues with how they fit in with the big picture. Plastic, over a the
long run has very limited utility, but never goes away and stays toxic.
What is going to happen to
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On 6/3/2012 6:31 PM, Michael Haberler wrote:
Am 03.06.2012 um 18:54 schrieb Kirk Wallace:
These printers are very clever and the products entertaining, but
I have issues with how they fit in with the big picture.
Plastic, over a the
Kirk,
On 6/3/2012 8:05 PM, Charles Steinkuehler wrote:
Generation of the step/dir signals is straight-forward, but modern
RepRap firmware also does PID control of the extruder temperature via
a thermister sensor. I am currently planning on using a simple 555
timer circuit to convert temperature
Michael:
however, I'm much more concerned about this project basically missing the
boat on 3D printing altogether
In what way?
It seems to me that some of the mechanical designs are simply bad. (OK,
perhaps horrendous would be a better term)
I'm all for inexpensive, but there a point where
On Sun, 3 Jun 2012, Dave wrote:
Date: Sun, 03 Jun 2012 21:08:44 -0400
From: Dave e...@dc9.tzo.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] OT: and Soapbox
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