gentoo is a the normal distro as ubuntu
the problem it's into ./configure file
but not a LTS distro? like 8.04 or 10.04?
yes gentoo is LTS
I compile HeeksCAD
so it is not Ubuntu...
gentoo and LTS do not go in the same sentence
I don't have a clue then, sorry that is beyond my guesspertice
gentoo is like Linux from scratch
gentoo is a source based distribution, there are no releases, there is stable/unstable and the packages for both are always progressing
it is much unlike a long term support release of ubuntu
theorb is now known as theorbtwo
but the subsistem , compilers and libraries is equals
it being source based can be beneficial when building other packages from source, anything you have installed, you have a the -dev version of
salvarane, are you running the RT kernel you expect to use for EMC2?
yes my system is compiled from sources
that wasn't the question
Linux localhost 2.6.34-magma #2 SMP PREEMPT Mon Aug 16 20:48:48 CEST 2010 x86_64 AMD Turion(tm) 64 X2 Mobile Technology TL-56 AuthenticAMD GNU/Linux
salvarane: the build instructions on the wiki should work, and once you build the RT kernel, the rest builds rather easy on gentoo too
and there's a kernel header directory called /usr/src/Linux-2.6.34-magma ?
err, that's linux, not Linux
not is possible configure emc-dev with command ./confiugre
the proble is
checking for kernel version string... configure: error: Kernel version string not found
the error probably means that the configure script can't find the kernel headers
since that's where the kernel version string is defined
(or in one of the kernel makefiles, I don't remember)
I pastebin wait please
* JT-Hardinge heads inside now that at least three people here knows who Mr Gen Too is :)
say goodnight Gracie
./configure --with-realtime=/usr/realtime --prefix=/usr/local --with-kernel-headers=/usr/src/linux-2.6.34/include
ok, the option is --with-kernel-headers
leave the include out
[00:12:14] <salvarane> http://pastebin.com/X6Eh8RZ9
ok I prove
assuming that's where the RTAI/IPIPE patched kernel headers are
see line 35: checking for /usr/src/linux-2.6.34/include/include/linux/version.h... no
the extra include is there
ok I see
this file not exist /usr/src/linux-2.6.34/include/include/linux/version.h
right, because you shouldn't have include as part of the --with-kernel-headers option
I changed in this ./configure --with-realtime=/usr/realtime --prefix=/usr/local --with-kernel-headers=/usr/src/linux-2.6.34
but the error remain
delete config.cache and try again
the .config file http://pastebin.com/Bi5VVms1
(I think that's the name)
not is present
into .configure file is present the string CONFIG_IPIPE=y
and all tests realtime it's ok
the .config is fine
(probably - I didn't inspect it too closely)
could you pass the source archive emc2 v 2.4 to me pleace
the two options not is set
# CONFIG_IPIPE_DELAYED_ATOMICSW is not set
# CONFIG_IPIPE_UNMASKED_CONTEXT_SWITCH is not set
I don't understand what you're asking
I must set a true
no idea, but that doesn't affect the configure error
ok , thanks
I try change the flag version into kernel-2.6.34 from magma to -rtai-vulcano
I don't think it matters what you call it
the problem is the script configure
hello people. Is there a way to use variables in gcode? What I'd like to do is specify something like FEEDRATE = 20 at the top of my gcode, and commands that specify moves would use that variable. As in G01 X1 Y1 FEEDRATE.
this option into kernel is disable " enable deprecated sysfs features to support old userspace tools "
SWPadnos: and what would the G01 call look like?
G1 X1 Y1 F#<feedrate>
it's in the gcode manual under "parameters" and "named parameters"
sed is your friend, use it ;)
if you want to run at half speed, you'd use F[#<feedrate>/2]
thank you. I was waiting for you to point me to the docs. I looked, I promise :-)
I don't believe you :)
SWPadnos: think of it this way. If I was able to find everything in the docs, then I'd never visit. :-)
what a wonderful world ...
oh sorry, I was dreaming again
SWPadnos: USE THE SOURCE LUKE!
hold on, let me search my feelings for a moment
well great. It works. Thanks SW.
One other comment. Do any of you guys use synergy? It is so cool. It allows you to move your cursor from one screen to another.
owhite: No, that's Synergy2
So in my case I have my keyboard running off of my linux/EMC computer, but I can swing the cursor over to my windows laptop that does the CAD.
It's a virtual KVM switch
Yeah in fact I've been using synergy-plus.
Its really great though. I gotta say.
Sure, if you have a secure LAN
owhite: ! how is the laser?
it is working really well. I bought new optics and its cutting thicker metal. I overhauled a lot of my software so there's much smoother transfer of files between my CAD system and EMC. I built a plugin into EMC that makes a call to toolpath finding software.
And revamped my web site: http://nilno.com
I should say I built a plugin in _axis_, not emc.
Cool, I can cut this much metal with my laser:
owhite: (zilch, zero, nada, nuttin, zip)
mine is only 250watts. That's like little baby compared to the real industrial jobs in the 5kw range.
Okay people thanks for everything.
Working on the BP2 errors now, with debug level back to 0. Still getting that error: "/usr/bin/emc: line 654: 28271 Segmentation fault $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS". Error window available at http://pastebin.ca/1918536
Any advice appreciated.
Do you think this one could also be having that "lacpi" problem? This PC is at least a little newer (P4) and has more memory (512MB).
did lapic fix that other one?
this one says segfault in ... libGL.so, implying you've got an opengl problem of some kind. does glxgears run?
I don't know, I could never get lapic to go in and stay in, so I could never be sure of any results. But it only has 256MB of RAM, and that may be an issue too. I tried to reinstall from the new CD, but it stalls on step 4 (partitioning). Also I don't get the startup menu ("test this disk"), don't know if it's there or not, this is the first one I've tried. The correct answer may be to re-install 8.04.
On the BP2, you are right, glxgears doesn't run, "segmentation fault".
can you borrow some ram for the 256 to install? I bet that's not enough to run the live cd. to get the startup menu you have to hit escape (?) when it shows the "keyboard equals little man" thing at the bottom of the screen.
KimK: using an ATI card?
OK, I'll try it once more. I was hoping to get to some startup options where I could say, text-only, low-memory, or something like that. I don't know about the RAM, let me google the thing and see what it can use.
it's probably PC133
I insist you can get lapic to stick, and probably your current install will work. if you want more specific help, we can figure it out.
Valen: I don't know, it's an old Dell Dimension (4100?), I think just whatever graphics originally came on the motherboard.
lspci should tell you
OK, sure, let's try.
pastebin your menu.lst?
OK. (I'll move to the other PC now that the desk is empty.)
ok I think you should add six characters to the end of line 85: a space, then lapic
don't change anything else
then save the file, and back at the shell, run update-grub
OK, will do. Also, earlier I ran "grub-install -v" and got "grub-install (GNU GRUB 0.97)". FWIW.
Oh, and should I do this by a sudo edit or let the grub boot-time editor handle it?
sudo edit after booting
pretty sure you can't do it at the boot-time editor
hit "e" to edit?
yes you can edit options for that one boot that way
it's like a recovery mode if you have something messed up
but that won't change this file
OK, so I'm doing a sudo edit...
you running 10.04 or what?
he updated from 8 to 10 without a reinstall
What would be the best method to drill a LOT of .1155" holes into masonite? I'm trying to prevent the "buldging" that can happen when breaking thru the backside if the material.
back it with something like say mdf
like clamp the both of them togther
yep must have backer
Ok, and the tool? Mill? drill?
mdf do for masonite you think?
your .0001" tolerance of hole size in masonite is funny :-)
I didn't have the 2nd ISO yet (do now) and I found out that you can go directly from one LTS to the next LTS in one step, instead of three. So I said what the heck, let's try it.
emc on 10.04 is very beta is my understanding?
ok, say .116"
still pretty new, but it works for me
The pins are .1150
I was just asking because 10.04 uses grub2, which needs the update grub, 8.04 is using grub 1 which doesn't need it ;->
cradek: there any emc 10.04 isos?
grub 1 done the debian way with automagic kernel lists does require a run of update-grub
OK, you're right, lapic stuck this reboot, but I forgot to say update-grub, shall I reboot again? Will lapic still stick? (Sorry I forgot)
ahh yeah if you do it that way
yes update-grub and then reboot
i usually just edit the running kernel line ;->
OK, grub-update done, rebooted, lapic still sticking, tried emc2 (axis_9axis sim), got as far as "tool change window", never saw AXIS, got these errors: http://www.pastebin.ca/1918624
i guess now where i built rtai, i should go and check latencies on this
this is a 2.3 config you haven't updated for 2.4
or you could just remove the whole ~/emc2/configs/sim directory and start fresh
What, I didn't block the nml file?
OK, I'll look at it. '
OK, an unblocked NML file, and geometry=XYZBCUVW (missing A) were fouling it up, now it starts, thanks! (And for the lapic trick, too.) Want to try for two-for-two? What do you think about the bad glxgears on the BP2?
Maybe you'd like a run-it-and-pastebin?
sorry, but I need to go to bed. if you have the live cd, you could boot it on the bp2, and see if emc and/or glxgears runs
if they work, it's at least somewhat likely that a reinstall will fix your problem - whatever it is
back up your configuration directory of course
Ha, OK. I should quit too. Thanks for your help! (And it will be here tomorrow, I suppose, lol) OK, I'll keep at it just a little longer.
the GL problem is a hard one to guess on...
goodnight, thanks again
how bad is the glxgears?
SWPadnos: UTS stuff is now in include/generated not include/linux with the 2.6.34-magma the emc2 configure script fails
if pastebin ever gives me any love i can even show you :P
so even with a rtai kernel built, if newer, the problem will keep on showing up, proper /usr/src/linux link or not, it's not gentoo specific, maybe gentoo users tend to grab for "latest" more than others though ;)
hi asleep dudes
quick question... emc2 works fine in newer versions of ubuntu? (>8.04)
didn't wait for a quick reply... he even stated that everyone was asleep :P
impatience is not a virtue.
joining at a late hour, asking a question, and waiting a full 3minutes before quitting
let's try building emc2 again
Birdman3131 is now known as birdman3131|zzzz
Documentation/PCI/pci.txt:pci_find_device() Superseded by pci_get_device() <-- might be why motenc bombs for me -> /home/morfic/emc2-dev/src/hal/drivers/hal_motenc.c:294: error: implicit declaration of function 'pci_find_device'
i guess with 3 cores, rtai still wants me to configure it with 4? i guess i know in a little bit
anyone in need of a manual? http://igor.chudov.com/manuals/
why would you buy 3?
buy 3 what? cores? i bought 2, use the 3rd for free, 4th did not come online
elmo40, EMC2 AXIS seems to be printing perfectly in foam
i wish i could control the font/text somehow tho
so you got the ratios all setup nicely? 1" is no longer 0.940"? ;)
so wicked, i tell elmo40 i bought 2 cores but run 3, and on reboot, one core tries to hide
yep it seems to be dead on
better get a net out.
quad cores are the shiz
i5 here :)
old school q6600 for my quad core
though my desktop is a dual core atom atm
im using a p3 800 laptop
Valen: i want a thuban core quad, and see if i can fetch me a free fifth and/or sixth
EMC box is a 3.2ghz P4
I just replaced dads other halfs celeron 500 with 192mb ram, running windows XP, AVG 9 and windows defender
took 20 minutes to boot lol
3rd attempt to install windows on the replacement GRR
install more ram
build kernel, build rtai, rebuild emc
alex_joni: Hey, can you think of a thin rigid material that's somewhat cheap?
Most thin plastic isn't rigid.
I'm talking like firberglass rigid
almost brittle in nature
(as in use the stuff)
not thin enough
well, maybe thing enough, but not cheap
which is pcb, without the copper
if you say so
superglue impregnated cardboard :D
I made a gasket out of cardboard and candlewax once
intake side ;->
would be nice to have some time to build emc from work, figure out what i biult outof sequence to get undefined symbols in rtapi :)
morfic: undefined symbols in rtapi don't depend of compile sequence
rtapi is patches on the kernel innit? you generally compile the kernel in one go unless you are trying to do individual modules or some such
hi from rainy germany
someone ever workt with a fagor control ?
manual machine tool here
Jymmm: what do you need this 'thin non-metallic rigid' material for?
jymmm, mica sheet from dead toaster
why do i get "straight feed in concave corner cannot be reach by the tool without gouging" from this; http://pastebin.org/568126
the radius if the cut is smaller than the tool
i tried to get a good leadin but not sure what g41g42 ask for
it a 14" endmill cutting a 1/4" rad
then its equal, try it with a less than type thing
ie < 1/4
should only need a little but
change the tool or radius ?
raidus bigger or tool smaller
[13:33:17] <JT-Work> http://www.linuxcnc.org/docview/html//gcode_tool_compensation.html#sec:Cutter-Radius-Compensation
i havent looked at your code yet do don't quote me on that fixing it
birdman3131|zzzz is now known as Birdman3131
JT-Work: thanks....been looking for that
can i use g41g42 with g2g3 ?
[14:36:15] <skunkworks> http://www.practicalmachinist.com/vb/deckel-maho-aciera-abene-mills/two-machines-209340/
"In my experience corporate sponsorship is essential to bring order to prevaling chaos in the world"
and after that, the next guy has statistics he'll share with you if you're interested
skunkworks: you're a saint, btw
I think I also missed the point of him wondering how many 'maho's where converted.... Like it has to be machines of that type converted before he beleives that emc will work for it.
cradek: I think I have mellowed. (kill em with kindness) ;)
it sure is true that not everyone can successfully complete a retrofit
many more people know how to write a check than know how to retrofit a cnc machine
I have read many thread where someone did write the check and things are still not working :)
I have seen many people on the mailing list and forum who I think are just not smart enough to understand everything needed to get a working machine. for some of them I have been right, for at least one I have been wrong.
JHOLLAND1 and Martin P both *want* to not be smart enough - they have no interest in learning what's required - they will not be successful
often one gets what one wants in this way
right. - or you have the ones that just assume someone will help them from start to finish. (we have had some on here) (usually we send them to jmk...) ;)
a few minutes spent on youtube (with the confirmation bias knob turned way down) would give these guys a different picture about what can be done with emc
oh well :-P
Srpski is now known as Dannyboy
skunkworks: robh's superslant videos are really impressive as well
yes - didn't I post a few?
[15:26:00] <pcw_home> http://www.youtube.com/watch?v=swulPjzzRQA
[15:26:03] <pcw_home> http://www.youtube.com/watch?v=8S1NIhwCzB0&feature=related
These are the ones I was thinking of
jepler- is now known as jepler
MattyMatt: Mica is an idea, but doens't it flake apart?
alex_joni: Never seen any 1/16th "
skunkworks: another lathe retrofit http://www.youtube.com/watch?v=V_V48-2cbiE&feature=channel
that's quite a turret
looks like it
I can't read german but I bet one of the comments says "tool length offsets are important" http://www.youtube.com/watch?v=tb1kUCb9avw
(and wow that's a fast machine)
Ouch, it was going well till he changed tools (was that supposed to ge on top of the block?)
yes I think so
and yeah, seems like the machine stopped (following error?) but then the operator did a wrong jog or tool change or something
[16:06:17] <elmo40> http://www.youtube.com/watch?v=y4LohuMTdfo
cradek: that german video, looks like the tool is only taking off 0.030" at a time
I think a 4" face mill could have done that in one pass ;)
elmo40: one pass is no fun keep the mashine running as long as the headsink is not burning :DD
IchGuckLive: my work is (finally) starting to look at run times. we have so many programs that go for 4-8hrs that I know if I reprogrammed them they would be less then 2hrs.
thats what i do for business optimising all the parameters if the part item numbers grow over 5000
most parts are in the 20tousends
what is .at? Austria? http://www.cnc-ready.at/
elmo40but a 4" face mill is probably more expensive to break... :-)
elmo40: there are alot here in the area that build mini cnc routers for selliing
pcw_home: then don't break it!
use a 7-9 carbit one
with 850U/min 3mm depth and 500mm/min this will cut your problem
i was using a joystick for analog input. hal sees it as -1.0 to 1.0 position, or 0 to 255 counts.
other linux tools see it as S16. what is the native data? is what i see in hal always scaled?
nativ data is a rect sin
for a potentiometer?
whats is reported is data over usb
[16:28:05] <skunkworks> http://www.practicalmachinist.com/vb/deckel-maho-aciera-abene-mills/two-machines-209340/
ah __s16 value;/* value */ from linux/joystick.h ( none of the above :/
what happend to your switches
sorry mr. <IchGuckLive> I have to compile a new kernel 2.6.34 for 64bit machine patched with this hal-linux-2.6.34-x86-2.6-03.patch patch, I should reboot the system for testing the correct configuration
I run the scriopt ./configure into emc2, but I receved this output "checking for kernel version string... configure: error: Kernel version string not found"
I test this flag "Automatically append version information to the version string" enabled into kernel sources, I hope that the problem "checking for kernel version string... configure: error: Kernel version string not found" disappear
[18:41:40] <skunkworks> http://www.practicalmachinist.com/vb/deckel-maho-aciera-abene-mills/two-machines-209340/
skunkworks: nice post you too JT
huh, bill must have added a few new pictures to the end of http://geektrap.com/bill/01248711886
because those are quite recent
I read that emc2 if compiled with kernel type "redhat mandrake" suffer of string version recognize
cradek: do you run a phase converter?
and about how many amps does that machine use?
I download vanilia kernel-2.6.34 from portage into gentoo amd64, I think that portage apply some patch on sources, I attempt download a new kernel vanilia from kernel.org and recompile all
Fox_M|afk is now known as Fox_Muldr
ichudov: about your last messsage: we have (system,shell command here) magic comments. if you could modify tracer to write a file you could later subsequently with O-call, maybe you could have what you want
alSMT: I think the main breaker is 75. I have it on a 40 circuit I think.
the spindle is 5hp. I doubt I ever use more than 2-3. The phase converter is an 8hp motor.
I feel a little lucky that I haven't had any power problems.
cradek: i was writing a post to practical machinist. I will try to read about this (system, shell command)
I would really love to use TTT insude G code instead of generating filesd and hand editing
cradek: I am writing a perl script to make output of TTT a little more flexible
I will share it once done
ichudov: I think it would be better to modify TTT instead of postprocessing its output
it is an intersting idea to use (system,...) and O-call together (...if that works)
I did not try it
cradek: I just thought that it would be "killer app"
For making stuff like panels, etc it will make it trivial
I can try to modify TTT if you want.
I would be happy to review a patch that makes TTT output something suitable for calling with O-call instead of a complete program ending in M2
I will let you know.
cool. be sure you start with 4.0 because it's very different from earlier.
alSMT, I ran a DIY rotary phase converter for a while. They work well, just make sure you have a large enough one.
alex_chally: also make sure that the phase converter is "balanced", otherwise different legs may have very different voltages, and act differently under power.
yeah, I used a couple of capacitors on mine
and a start cap so I did not have to use a cord to start it
alex_chally: are your caps on both L1-L3 as well as on L2-L3?
ichudov, I believe so, although I took it apart a while ago when I got a VFD
that's good. I have a momemade RPC also. It actually has two idlers, and is very balanced
momemade -> homemade
ichudov, iirc when I measured the voltage they were the same to within a couple V
I have resolved the problem "checking for kernel version string... configure: error: Kernel version string not found" changing the variable KERNEL_VER from KERNEL_VERS=`gcc -E -dM /usr/src/linux-2.6.34/include/linux/version.h | grep UTS | cut -d '"' -f 2` to KERNEL_VERS="2.6.34-rtai-vulcano" and create the link asm --> asm-generic into /usr/src/linux/include
it worked well, was stable
although not quite big enough
2hp rotary with a 1.75hp spindle
it did not like starting the spindle cold in the highest gear
Mine is within 3-4 volts
once everything was warm and moving it could do it fine
Just add another idler to your existing RPC and you will be golden
ichudov, well, like i said I ended up with a real vfd
VFDs rule when you can use them
heck yes they do
any of you guys with touchscreen phones manage to keep them alive in the shop for long?
my blackberry holds up pretty well, but I am afraid that my new droid is gonna get pwned
I have android and i works good. I actually use an Android app to watch my mill working, since I installed a netcam on the mill. This way I lay on the couch reading and watch the mill.
ichudov, sweet :D
ichudov, if I had the cash I would *love* to put an HD cam on my lathe toolpost and on the head of my mill, have them constantly recording
so that I can make videos of my work without actually stopping any work
Here is something pretty to brighten up your day, I fitted the 316 foldable prop to my sailboat yesterday, and snapped some pictures:
[20:26:30] <Dallur> http://www.dallur.com/index.php?id=44&tx_lzgallery_pi1[showUid]=8&tx_lzgallery_pi1[pic]=37&tx_lzgallery_pi1[colrows]=1x1&tx_lzgallery_pi1[old]=5x5x26
[20:26:30] <Dallur> http://www.dallur.com/index.php?id=44&tx_lzgallery_pi1[showUid]=8&tx_lzgallery_pi1[pic]=40&tx_lzgallery_pi1[colrows]=1x1&tx_lzgallery_pi1[old]=5x5x26
bah, can someone linx me the packages to install emc on 10.04?
sorry <alex_chally> the ubuntu 10.04 is an system 64bit or 32bit
I don't think there is a 64bit EMC?
Dallur: 316 as in stainless steel?
is there even a legit reason for running emc in 64bit?
we build packages for 32 bit, and the realtime kernels we distribute are 32 bit.
I don't think there's any problem running emc on 64 bit, but there's probably also no benefit
I don't know whether rtai is stable on 64 bit yet or not. last we tried, it didn't seem to be.
Dallur: neat - did you make the prop?
I have to test the emc2 into my system gentoo amd64 with kernel 2.6.34 patched rtai
cradek: unfortunately no, I wish I had though, as far as I know there is only one company on the planet that makes stainless foldable props
cradek, do you have the link to the packages for 10.04?
[20:36:20] <Dallur> http://www.seahawk.com.au/
Dallur, that prop is mighty shiny, how did you polish it?
[20:36:51] <cradek> http://linuxcnc.org/emc2/dists/lucid/
Yup, I decided to see how a mirror surface would stand up to seawater and fouling
Probably took around 2 days :P
cradek, what in that directory am I actually going to have to instalL?
[20:39:39] <alex_chally> http://linuxcnc.org/emc2/dists/lucid/emc2.4/binary-i386/
just those packages?
if you said what you're trying to do, I missed it
sorry, I am looking to install EMC on a intel atom board
why not use the live cd if it's a fresh install?
cradek, can you do that and then upgrade to 10.04?
still experimental - please report with your results
cradek, thanks! i did not know nthe 10.04 ISOs were out yet
hm, can you do a usb key install off of those?
k, worth a try, I don't feel like ripping a cd drive out of another computer right now
alex_chally: afaik there are some programs out there that take an iso and put in on usb sticks
oh ho ho
this is an interesting install
installing off a microsd card
using my blackberry as the card reader
it is looooooooooow
alex_chally, this will put ISO onto USB stick for you,, http://unetbootin.sourceforge.net/
Fox_Muldr is now known as Fox_M|afk
anyone know how to upgrade EMC2 without a network connenction?
zsircusr is now known as Gangsta
need some advice
well.. you're only getting some if you ask questions..
do i NEED to use shielded wires for all my sensors or are there other options?
what kind of sensors?
limit and spindle speed
if so, what voltage on them?
With as much electrical noise that motors produce, shielded is ALWAYS recommended.
everything works excellent when scattered one end of the workshop to the other, yhet when boxed up nothing works right
yeah, but if you use 24V or so for limits, then you might be fine without shields
but like Jymmm said.. always go with shielded if possible
and spindleshows 400 rpm wheb switched off
im using 5vfor limits
any recommended cable?
even cat5 is ok for limits
Gangsta: what cable are you using now?
alex_joni: only becasue the twisted part I'd bet.
24v to something like opto22 modules is very noise-immune
just normal wire
the input modules have a fairly long time constant which eliminates the noise
why not a current loop over cat5?
Gangsta: coat hanger? bailing wire?
concentrate on shielding your encoder wires - limits and home are not critical
a 100uF accross the limit fixes thembut that seems more of a botch
without it I cannot home
anyone know how to upgrade EMC2 without a network connenction?
should the steppers be shielded also?
ha youre going to weld the switch or something
you could prob rc filter the switch signal at whatever its connected to
what do u mean weldthe switch
like 1K and 0.1uF RC or something
if you have a cap directly across is youre dumping the cap through the switch contacts
sory i meant 100nF
which is 0.1uF
its prob a pretty hardcore switch so even 100uF is prob not going to mess it up bad
but yeah if you put the cap after a series resistor at your sense input, it might do a lot more
so I should shield everything to be safe?
in general yes
only connect shield on one side, should be the controller side
next up is the atc lol. my first attempt at classic ladder
and connect the shield to a grounded chassis or a power supply ground, dont stick it on an iopin ground
one central gndfor all shields?
prefferably, but you can just connect them all to the chassis
like ideally everything goes to one ground but it never really goes down like that in most real life stuff
what about motor power gnd and controller gnd
should go back to the power supply ground
unless by step ground you mean the ground on the cable
so join the gnds on both power supplies too?
thats usually the stepper chassis and cable shielding
think i'll need to tear it apart andstart again lol
you power should have some sort of neutral or earth, generally if a system isnt grounded by something its connected to, it grounds on one of those
justgutted because everything worked perfectuntil i boxed it all up
like if the machine itself is grounded you could use that and run offline in regards to your mains power
or if you have a known ground to strap to
grounding is kind of an art, eheheh
My machine is groundedto earth on the mains side, and alsois a gnd for the powersupplies due to the steel chasis
right so you can use the chassis or a power supply connected to it as the absolute ground ref
if your supplies are working right, they suck back any current theyre putting out so nothing is supposed to dump into earth ground
not much at least
I am actually quite goood at electronics, but in lab conditions. where noise isnt really an issue
okay, so ground paths are never zero ohms with no inductance or no capacitance
any any current through them represents a magnetic field which can interact with all the other magnetic fields
so just think of it like that and the lab electronics is pretty useful
are there any issues mixing transformerand switch mode power supplies?
justhaving both in the same system?
it shouldnt be a problem
there will prob be noise coupling issues but digital stuff is prob on the other side of voltage regulators, shrug
iuse a hugetoroid and a few massive caps for my stepper supply, and my pcs power pack for control electonics and relay switching
toroid transformers yeah that should be good
theyre better about ignoring noise
they keep most their magnetic field to themselves inside the ferrite core
pc is stupid noise and stuff still works
i wasnt sure what i needed so i got a 600 VA, 2x18v taps one for each stepper, and a 10,000uF 100v cap over each
sorry 2x 10 amp bridges in there too
it regulates to about 24 v
gotta go renesis, thanks forall your help
so renesis, do you use renesas micros?