Kicklas, Sarahet al
happy new year
always something new on interweb ;-)
http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1665-7381201400015
many others but those with linuxcnc & a circuit come first
tomp tjtr33
re: the ui.
tabs a coll but too dang small
i now have 3 panels that ope
and oel-held re-issued thier edm booklet
the best visuals about the spark process
from Dr. Schumaker ???sp??? of AGie circa 1975
http://www.oelheld.com/fileadmin/content/pages/Prospekte_pdf/Prospekte_en/oh_Important_facts_about_spark_erosion_en.pdf
Bernardtomp tjtr33
its really important in EDM
t
On 12/31/2016 09:18 PM, Gene Heskett wrote:
[snip]
>> However, if the reference ground is not equal at both ends of the
>> signal line, then you are in trouble. This is why you would use a
>> balanced line (differential), which is not absolutely referenced to
>> ground, but switches on the differen
Happy new year to you Thomas, Nicklas
thanks for the links , i will give them a good read
Sarah
On 1 January 2017 at 08:41, TJoseph Powderly wrote:
> and oel-held re-issued thier edm booklet
> the best visuals about the spark process
> from Dr. Schumaker ???sp??? of AGie circa 1975
> http://www
> Do you know of a 4 wire to 8 wire and back interface that can function at
> 32 megabaud and doesn't cost 5 grand+? Neither do I. :) Laser diodes
> and detectors that could handle 2x the video speed needed to hit an HDTV
> transmitter would be required, times 4 to do it optically.
>
> There
On Sat, 31 Dec 2016 11:57:25 -0500
Gene Heskett wrote:
> On Saturday 31 December 2016 11:12:33 Jon Elson wrote:
>
> > On 12/31/2016 04:34 AM, andy pugh wrote:
> > > On 31 December 2016 at 03:07, Gene Heskett
> wrote:
> > >> But did they fix the problem? It seems to me that tracking the
> > >>
On Sunday 01 January 2017 05:54:05 Bertho Stultiens wrote:
> On 12/31/2016 09:18 PM, Gene Heskett wrote:
> [snip]
>
> >> However, if the reference ground is not equal at both ends of the
> >> signal line, then you are in trouble. This is why you would use a
> >> balanced line (differential), which
On Sun, 1 Jan 2017, Gene Heskett wrote:
> Date: Sun, 1 Jan 2017 10:33:44 -0500
> From: Gene Heskett
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] question on emi filters
>
> On Sunday 01 January 2017 05:54:05 Bertho Stulti
On 01/01/2017 04:33 PM, Gene Heskett wrote:
> Well, in my case, the cable might be 8" long. The power to the pi and the
> power to the 7i90, originate from the output terminals of a separate 5v
> supply. But the pi has a ferrite choke on its power lead that the 7i90
> lacks. The 5v supply's gro
On Sunday 01 January 2017 10:45:53 Peter C. Wallace wrote:
> On Sun, 1 Jan 2017, Gene Heskett wrote:
> > Date: Sun, 1 Jan 2017 10:33:44 -0500
> > From: Gene Heskett
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] ques
On 1 January 2017 at 16:44, Gene Heskett wrote:
> So far, only line filters have helped.
No improvement with the new PSU?
For the amount of 5V power we are talking about here, surely it would
be easy to make or buy a linear PSU?
--
atp
"A motorcycle is a bicycle with a pandemonium attachment a
#1 are you using all 8 grounds on the flat cable to connect the 7I90
to the RPI?
Peter Wallace
Mesa Electronics
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
--
On 12/31/2016 11:01 PM, Gene Heskett wrote:
> Cheers, Gene Heskett
Yes, indeed, happy new year to all the users, and ESPECIALLY
the developers of LinuxCNC!
Jon
--
Check out the vibrant tech community on one of the world'
> No improvement with the new PSU?
>
> For the amount of 5V power we are talking about here, surely it would
> be easy to make or buy a linear PSU?
Yes, TO220 7805 or LM8705 but you may be suprised about how much power is
wasted as heat inside it. It is a good idea to do the math before bying.
On Sunday 01 January 2017 11:29:45 Bertho Stultiens wrote:
> On 01/01/2017 04:33 PM, Gene Heskett wrote:
> > Well, in my case, the cable might be 8" long. The power to the pi
> > and the power to the 7i90, originate from the output terminals of a
> > separate 5v supply. But the pi has a ferrite c
On Sunday 01 January 2017 11:51:04 andy pugh wrote:
> On 1 January 2017 at 16:44, Gene Heskett wrote:
> > So far, only line filters have helped.
>
> No improvement with the new PSU?
No Andy.
>
> For the amount of 5V power we are talking about here, surely it would
> be easy to make or buy a line
On Sunday 01 January 2017 11:58:55 Peter C. Wallace wrote:
> #1 are you using all 8 grounds on the flat cable to connect the 7I90
> to the RPI?
>
> Peter Wallace
> Mesa Electronics
>
> (\__/)
> (='.'=) This is Bunny. Copy and paste bunny into your
> (")_(") signature to help him gain world domin
On 01/02/2017 12:38 AM, Gene Heskett wrote:
[snip]
> Bring up power to the motor supplies and its injecting enough noise on
> the SPI bus that it all goes in the crapper. Once I stopped everything
> but lcnc, and was walking around the tail end of it to see what I could
> see on the scope, this
On 1 January 2017 at 23:47, Gene Heskett wrote:
> Its radiated noise from the motor supplies.
Motor supplies don't even need to be regulated. Just use a
transformer, rectifier and capacitors.
(transformer might be optional, depending on hardware, both my current
machines run from rectified mains
On Sunday 01 January 2017 19:01:29 andy pugh wrote:
> On 1 January 2017 at 23:47, Gene Heskett wrote:
> > Its radiated noise from the motor supplies.
>
> Motor supplies don't even need to be regulated. Just use a
> transformer, rectifier and capacitors.
>
> (transformer might be optional, dependi
I am running a cnc'd jet 9x20 lathe with a treadmill motor and dc
motor controller with a 5k pot for speed control in manual.
I previously was running the speed controlled from LCNC from the
parport to an opto interupter for isolation from the motor
controller which worked fine.
I was running
What controller are you using? I need one able to handle a 110 volt DC, 1.5HP
treadmill motor. My 9x20 CNC conversion is on hold due to a lack of motor
controller.
For running the saddle I picked up a ball screw linear actuator exactly the
right length. It's pitch is 16mm per turn so I have a 2:
On Sunday 01 January 2017 23:39:21 Cecil Thomas wrote:
> I am running a cnc'd jet 9x20 lathe with a treadmill motor and dc
> motor controller with a 5k pot for speed control in manual.
>
> I previously was running the speed controlled from LCNC from the
> parport to an opto interupter for isolati
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