Colin Kingsbury wrote:
> Since I started posting my Arduino-EMC interface work I'm getting an
> email every week or so from someone asking how to use this to do step
> generation. I've generally given the WC Fields "go away kid, you
> bother me" reply but at some point my day-job "if the users k
Kirk Wallace writes:
>It may be that an Arduino could do this, but my impression is that there
>aren't enough AVR pins coming out to where one could get to them. The
>price of the smaller Arduino's seems to fit my plan though.
The RepRap and MakerBot use a different AVR chip that has a dozen mor
Kirk Wallace wrote:
> I would like to closely reproduce the popular FPGA signal generators,
> but move the cost down into the low cost hobby area.
My FPGAs cost me $12, if I bought them in larger quantity, I could get
them for even less.
The board, and especially the connectors are what costs the
On Sat, 2011-01-15 at 17:54 -0500, Colin Kingsbury wrote:
... snip
> IMHO, there's a prize here if you can make machine latency a non-issue
> and make USB a usable interface **FOR LOW-END MACHINES**. These days I
> have thousands of dollars invested in all my machinery, but when I got
> started, it
> From: Kirk Wallace
> Subject: Re: [Emc-developers] AVR Brain Barfing, Stepgen, USB, etc.
> To: EMC developers
> Message-ID: <1295129227.8603.60.camel@kw-ws>
> Content-Type: text/plain
>
> The following is what I have been working on.
>
> I would like to c
On Sat, 2011-01-15 at 14:14 -0500, Colin Kingsbury wrote:
> Since I started posting my Arduino-EMC interface work I'm getting an
> email every week or so from someone asking how to use this to do step
> generation. I've generally given the WC Fields "go away kid, you
> bother me" reply but at some
Lawrence Glaister wrote:
> Hi Colin,
> One idea that might be worth pursuing is to build a timing regenerator.
> By this I mean a chip that would accept quadrature output signals (step
> type 2) from an EMC box with lousy latency numbers. The chip would then
> re-time the signals limiting the accel
Hi Colin,
One idea that might be worth pursuing is to build a timing regenerator.
By this I mean a chip that would accept quadrature output signals (step
type 2) from an EMC box with lousy latency numbers. The chip would then
re-time the signals limiting the acceleration to some programmable
amount
Since I started posting my Arduino-EMC interface work I'm getting an email
every week or so from someone asking how to use this to do step generation.
I've generally given the WC Fields "go away kid, you bother me" reply but at
some point my day-job "if the users keep asking for it maybe I should
l
> On 12/21/2010 2:46 AM, Dave wrote:
> > That is some sophisticated smoker control.. :-)
> >
> > Seems to me that the hard part is getting the thermocouple inputs into
> > the PC without going bankrupt.
> >
> > Did you see this ??
> >
> > http://www.circuitcellar.com/library/print/0503/moyer154/3.h
What about using some chips like these for the TC interface and then tie
these into a Pokeys via the Pokeys analog inputs.
http://www.analog.com/static/imported-files/data_sheets/AD594_595.pdf
If you use EMC2 and keep the Gcode interface you could sell it as the
ideal programmable smoker for CN
That is some sophisticated smoker control.. :-)
Seems to me that the hard part is getting the thermocouple inputs into
the PC without going bankrupt.
Did you see this ??
http://www.circuitcellar.com/library/print/0503/moyer154/3.htm
Perhaps something like this but instead tied an Arduino or a
Jonathan George wrote:
>
> However, I'm not sold on the idea of using EMC to control it. I would
> think that a good python interface for the PC would be adequate, why
> require in installation of a realtime patched kernel for controlling a
> smoker? I suppose you could run it in simulation mode
On Mon, Dec 20, 2010 at 8:00 PM, Jon Elson wrote:
> John Thornton wrote:
> > One recipe might look like this
> > Cabinet temperature 120F, Circulation Fan On, Vent 100% open time 1:45
> > add smoke generator heat time 0:20
> > close vent to 50%
> > ramp cabinet temperature from 120F to 145F over
John Thornton wrote:
> One recipe might look like this
> Cabinet temperature 120F, Circulation Fan On, Vent 100% open time 1:45
> add smoke generator heat time 0:20
> close vent to 50%
> ramp cabinet temperature from 120F to 145F over a 2 hour period
> smoke generator off
> cabinet temperature 160F
Jon,
It's not just a simple temperature control... It needs some smarts,
that's why ATM I'm using a PLC with a dual thermocouple input and a
touch screen to and several SSR's perform the tasks. I need two or more
temperature probes (thermocouples not thermisters) one controls the
cabinet tempe
Dave wrote:
> Depends on what you want to do. If John wants to run some type of
> temperature vs time profile then something smart makes sense.
>
>
In that case, buy a ramp-and-soak temperature programmer on eBay, and
add a thermocouple and a power solid state relay. I did this for the
toa
Yep.
http://s47.photobucket.com/albums/f163/johnplctech/Smokin/
Brian wrote:
> Seriously!? A PLC, touchscreen controlled smoker?! Thats badass...
>
> Brian
>
> On Sun, Dec 19, 2010 at 1:41 PM, John Thornton wrote:
>
>> On the PC side of the control would be the smarts to control
>> tempera
On Sun, 2010-12-19 at 06:11 -0600, John Thornton wrote:
> Kirk,
>
> Do you think something like this could be used to control the
> temperature of a smoker cabinet with 500 watt heater? I've been wanting
> to build something that is very cost effective that could be plugged
> into a laptop via
Grr... Meant to say, strip out the g-code interpretation and let EMC take
care of that and you might end up with a pretty nice little system.
On Sun, Dec 19, 2010 at 1:58 PM, Colin Kingsbury wrote:
> Here is an open-source Arduino/AVR-based 3-axis step/dir controller that
> takes G-code inputs d
Here is an open-source Arduino/AVR-based 3-axis step/dir controller that
takes G-code inputs directly:
http://dank.bengler.no/-/page/show/5470_grbl?ref=mst
And the source:
https://github.com/simen/grbl
Strip out the g-code interpretation and let EMC take care of that
---
Seriously!? A PLC, touchscreen controlled smoker?! Thats badass...
Brian
On Sun, Dec 19, 2010 at 1:41 PM, John Thornton wrote:
> On the PC side of the control would be the smarts to control
> temperatures and have various recipes for different temperature profiles.
>
> These scenarios are comm
On the PC side of the control would be the smarts to control
temperatures and have various recipes for different temperature profiles.
These scenarios are common when smoking
Control the cabinet temperature only.
Control the cabinet temperature and when the internal temperature of the
meat reac
Depends on what you want to do. If John wants to run some type of
temperature vs time profile then something smart makes sense.
If you just want to maintain temp - there are some very cheap
thermostats available that can handle power circuits.
The least expensive I have found is a water heate
John Thornton wrote:
> Kirk,
>
> Do you think something like this could be used to control the
> temperature of a smoker cabinet with 500 watt heater? I've been wanting
> to build something that is very cost effective that could be plugged
> into a laptop via usb or something and control the smo
On 19 December 2010 03:14, Kirk Wallace wrote:
> Basically, $10 for an AVR processor, $15 for a programmer, $10 for a
> breadboard and some odd bits, then learn a bit of C, steal some free
> bits of code off the Internet, and now I have an EMC2 compatible fast
> PWM generator and a lot more that
Kirk Wallace writes:
>By the way, I got the ATmega32 version working, so I have eight bits of
>input now, plus a bunch of pins left over. Four PWM channels are
>advertised but they aren't fully independent of each other and share
>pins with other features, so the plot thickens.
You might want t
Kirk,
Do you think something like this could be used to control the
temperature of a smoker cabinet with 500 watt heater? I've been wanting
to build something that is very cost effective that could be plugged
into a laptop via usb or something and control the smoker heater...
Being electrical
On Sat, 2010-12-18 at 20:56 -0500, Ron Bean wrote:
> andy pugh writes:
>
> >On 18 December 2010 20:41, Kirk Wallace wrote:
> >>
> >> Am I on acid?
> >
> >Considering Mesa's prices, quite possibly.
>
> That depends on whether price is the primary consideration.
> Sometimes hacking is its own re
andy pugh writes:
>On 18 December 2010 20:41, Kirk Wallace wrote:
>>
>> Am I on acid?
>
>Considering Mesa's prices, quite possibly.
That depends on whether price is the primary consideration.
Sometimes hacking is its own reward.
---
On 18 December 2010 20:41, Kirk Wallace wrote:
>
> Am I on acid?
Considering Mesa's prices, quite possibly.
--
atp
"Torque wrenches are for the obedience of fools and the guidance of wise men"
--
Lotusphere 2011
Regist
I have been thinking about the parallel port being too slow as a signal
generator. FPGA cards are really fast, but they are way too hard (for me
at least) to hack (,too closed). So I was wondering, what would be a
very small next step up from the parallel port? I played with an ATtiny
and got it to
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