On 06/11/2012 11:56 PM, Jeshua Lacock wrote:
>> But that is also a 15V part IIRC. But that's ok - the only reason the
>> > Makerbot uses a PC power supply is because they are dirt cheap and TUV
>> > certified. You can use any supply you want. I use 15V supplies.
> OK, that was my main concern.
On 12 June 2012 16:10, Joachim Franek wrote:
> 1. USB
> Assume I attach a spi device to ftdi and
> have a userspace non rt program which
> can read/write to the device.
> What do you suggest to exchange data with hal
> for not really time critical data (like this case
> of temperature control
On Tuesday 12 June 2012 16:18:18 andy pugh wrote:
> Have you tried using hal_input to read it? It might just work if the
> USB chip looks like a HID device at all.
No, I do not have tried this because this is not a hid device.
This is a usb to rs232 converter and detaching
the ftdi_sio driver wh
On 12 June 2012 15:11, Joachim Franek wrote:
> I want to look to the lcnc code for
> the userspace driver for hid devices.
> This works nice with spancenavd for
> the 3dspacenavigator.
Have you tried using hal_input to read it? It might just work if the
USB chip looks like a HID device at all.
On Tuesday 12 June 2012 15:54:55 andy pugh wrote:
> On 12 June 2012 14:20, Joachim Franek wrote:
> > libmpsse
>
> Does that hook in to HAL in a convenient way?
>
Today no.
libmpsse makes tho usage of libusb easier for spi devices.
I hope to have a normal programm to get the
ad values. Than I
On Tuesday 12 June 2012 13:55:13 Ed Nisley wrote:
> On Tue, 2012-06-12 at 13:22 +0200, Joachim Franek wrote:
> > Why not use a dmm with rs232 or usb?
>
> A quick glance at the search results suggests that the combination of
> "thermocouple" and "usb" runs about $100 direct from China and *much*
On 12 June 2012 14:20, Joachim Franek wrote:
> libmpsse
Does that hook in to HAL in a convenient way?
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
--
Live Security Virtual Conference
Ex
On Tuesday 12 June 2012 14:36:52 andy pugh wrote:
> On 12 June 2012 12:55, Ed Nisley wrote:
>
> > A quick glance at the search results suggests that the combination of
> > "thermocouple" and "usb" runs about $100 direct from China and *much*
> > more than that from a reputable supplier.
>
> A
On 12 June 2012 13:36, andy pugh wrote:
> I found a 16-bit ADC with an 8x pre-amp
I forgot to say, it's about $2.
http://uk.rs-online.com/web/p/adc/6696098/
You would need to do linearisation in HAL (trivial-ish) and be a bit
cunning with the cold-junction compensation (terminate inside the cas
On 12 June 2012 12:55, Ed Nisley wrote:
> A quick glance at the search results suggests that the combination of
> "thermocouple" and "usb" runs about $100 direct from China and *much*
> more than that from a reputable supplier.
A K-type thermocouple gives you 40uV/K
For 150C above the cold-junct
On Tue, 2012-06-12 at 13:22 +0200, Joachim Franek wrote:
> Why not use a dmm with rs232 or usb?
A quick glance at the search results suggests that the combination of
"thermocouple" and "usb" runs about $100 direct from China and *much*
more than that from a reputable supplier.
You'd need a pair f
On Tuesday 12 June 2012 12:42:01 Ed Nisley wrote:
> There's been some work on reading analog values from various
> microcontrollers into HAL through USB. That'd be the hard part of the
> job,
Why not use a dmm with rs232 or usb?
There are some available with a thermocouple input.
Joachim
---
On Mon, 2012-06-11 at 22:07 -0600, Jeshua Lacock wrote:
> it supports two extruders
It has only one thermocouple input, so I'm not sure how you'd control
the second extruder head temperature.
Being an Arduino, it does have half a dozen analog inputs for
thermistors. I don't know whether the stock
Jeshua re:
>
> Are you using it on your mill, or do you have a dedicated printer for it?
>
I built my own printer. If you go to http://www.thingiverse.com/DougM
there's a piccie of it in my profile. It was my first foray into
building a machine with a moving the table rather than a moving head
There's a contest going on for anyone who wants to take on the pellet
to filament conversion:
http://hackaday.com/2012/05/22/win-4-for-squirting-plastic-out-of-a-nozzle/
I have heard that the different providers have their own recipe for
the filament, so it might not be just pure ABS or PLA.
On Jun 11, 2012, at 5:49 PM, Youda He wrote:
> At $48 per kilo for material, it is on the expensive side, is there a
> place for cheaper material?
Yes, I just had that on my list because I figured it was worth starting with
known quality (its made by the people that make the extruder, controlle
On Jun 11, 2012, at 11:38 AM, Ed Nisley wrote:
> On Sun, 2012-06-10 at 18:09 -0600, Jeshua Lacock wrote:
>> try the MakerBot extruder controller
>
> My experiences with that thing may save you some heartache & confusion:
>
> http://softsolder.com/2011/01/06/thing-o-matic-extruder-controller-pow
On Jun 11, 2012, at 11:22 AM, mel...@earthlink.net wrote:
> I just put together one of the mk7 extruders over the weekend. It is a great
> choice from my perspective anyway. The gecko driver will work fine. You will
> need a 820 ohm and 20 ohm resistor (put them in series) to set the current to
On Jun 11, 2012, at 10:46 AM, doug metzler wrote:
> If you're going to get any kind of Gecko for this application get a
> G540 - handles all your axes at once (except the second head).
Thanks Doug,
I actually have servos for my XYZ. I just want to get one extruder working for
now. But in the f
On Jun 11, 2012, at 10:03 AM, andy pugh wrote:
> On 11 June 2012 01:09, Jeshua Lacock wrote:
>
>> http://www.geckodrive.com/geckodrive-step-motor-drives/g251x.html $89
>
> I think this is overkill for an extruder, which is only ever going to
> move relatively slowly.
> You would almost c
At $48 per kilo for material, it is on the expensive side, is there a
place for cheaper material?
-- Youda
On Mon, Jun 11, 2012 at 2:55 PM, Steve Blackmore wrote:
> On Mon, 11 Jun 2012 09:46:26 -0700, you wrote:
>
>>I ended up throwing away my cheap Chinese junk stepper drivers because
>>they ke
On Mon, 11 Jun 2012 09:46:26 -0700, you wrote:
>I ended up throwing away my cheap Chinese junk stepper drivers because
>they kept missing steps when coming out of idle. I run Keling KL-
>4030's which are inexpensive and have worked well for me.
Made me laugh..
Keling KL-4030 are cheap Chinese d
Am 11.06.2012 19:32, schrieb Joachim Franek:
> On Monday 11 June 2012 02:09:23 Jeshua Lacock wrote:
>> Oh, can anyone recommend a decent RS485 card that will just work with Ubuntu?
> http://www.ftdichip.com/Products/Cables/USBRS485.htm
>
> But I have not tested it.
>
> Joachim
This board should
On Sun, 2012-06-10 at 18:09 -0600, Jeshua Lacock wrote:
> try the MakerBot extruder controller
My experiences with that thing may save you some heartache & confusion:
http://softsolder.com/2011/01/06/thing-o-matic-extruder-controller-power-supply-improvement/
http://softsolder.com/2011/01/07/th
On Monday 11 June 2012 02:09:23 Jeshua Lacock wrote:
> Oh, can anyone recommend a decent RS485 card that will just work with Ubuntu?
http://www.ftdichip.com/Products/Cables/USBRS485.htm
But I have not tested it.
Joachim
--
to the motor
coil, so the voltage on the motor will go to 4.83 volts.
best regards, Steve Thatcher
-Original Message-
>From: Jeshua Lacock
>Sent: Jun 10, 2012 7:00 PM
>To: "Enhanced Machine Controller (EMC)"
>Subject: [Emc-users] 3D Printer Parts
>
>
>
If you're going to get any kind of Gecko for this application get a
G540 - handles all your axes at once (except the second head).
But that is also a 15V part IIRC. But that's ok - the only reason the
Makerbot uses a PC power supply is because they are dirt cheap and TUV
certified. You can use a
On 11 June 2012 01:09, Jeshua Lacock wrote:
> http://www.geckodrive.com/geckodrive-step-motor-drives/g251x.html $89
I think this is overkill for an extruder, which is only ever going to
move relatively slowly.
You would almost certainly be fine with one of the Leadshine-type
drives, such a
Greetings all,
I am thinking these are the parts I am going to order to get started with a
printer attachment for my CNC machine:
http://store.makerbot.com/extruder-controller-v3-6.html
$99
http://store.makerbot.com/stepstruder-mk7-complete.html
Greetings all,
I am thinking these are the parts I am going to order to get started with a
printer attachment for my CNC machine:
http://store.makerbot.com/extruder-controller-v3-6.html
$99
http://store.makerbot.com/stepstruder-mk7-complete.html
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