Oooh...found a neat tslot tooling site....probably not in the USA though...wixroyd...
clamps and stuff?
I have a DIN tslot table on my machine...
12 mm ...
Ebay find...probably a $750 table, if not more, for a fraction....
Had it EDM'd for the through holes to bolt it to the lintech tables about a year ago...EDM work cost as much
as the table, hi...
J.W. Winco has the hardware, but no good low-profile clamps and such...
This place has it all...
vertex has it all..
let me go look at them then...
do not see any tslot mount, low profile clamps...just the usual vices...
I am running out of Z quick...so the idea is to use the table as the vice...
Since its very high quality, and the european modular stuff fits right in...If I can find a source on this side of the
I bought a kit off the,.
but I cant remember if they have a homepage..
they make lots of stuff..
tooling/rotary tables/toolchangers/drawbars and stuff..
Vertex does not have what I am looking for.....
what is it you are looking for?
Found their catalog on the internet....under a distrutor website...
12 mm DIN tslot clamping stuff....
Wixroyd apparently has it all, but they are in England...
I think that's what I have..
but im not sure..
yes _ I am wireless on ubuntu... finally :)
Where are you located ?
So, doing an EU cross border purchase is no big thing, right ?
Just send em the money, and in a few days its there...
I have a place that sells that kind of stuff..
All the places here do not sell the metric sizes....Teco is what they sell, and its for bridgeports...
Teco does not even have metric in their catalog..online...
[00:42:34] <anonimasu> http://www.ss-maskin.com/PDF/sp.jpg
None of the more elegant tslot clamping stuff anyway, just the Tnuts, studs, and step bars....
you mean thoose things with levers you clamp to the table?
or that kind?
vertex has them.. if you can find a dealer..
Well, kinda like a tool-maker vice (suburban) only it bolts to the t-slot...
Oooh --- look at that...930 kroners....
yeah, but if you divide by /10 and you get euro..
Can t get that stuff here....
and by /8 and you get dollars..
hm, that sucks.
Can get the tnuts, and studs individually....JW Winco in Wisconsin...
Besides, I want to get the side/down thrust clamps that go right into the tslots...various designs...
Keep the Z low, and avoid hitting it the clamps with the tool...They also have the clamps that hold
plates up in the air a little...
so you can drill through holes...
* anonimasu nods
anyway....I did find the hole plugs to keep all the chips out of the 12 mm by 1.5 hole at Winco...
hm.. I need stuff to cover my slota..
chips are a damn mess
Yea, they have those at the Wexroyd place ...for DIN slots...
I'll just machine them out of some plate :)
I dunno if my retailer stocks that kind of stuff
*graps python for the laptop*
[00:52:30] <wb9mjn> http://www.wixroyd.com/products/pdf/w__214-t-slot-covers.pdf
what time is it there?
Its just before 7 pm in central time...chicagoland...
I'm pondering when I can call geckodrive
They are west coast...probably just closed...try tomorow, 2 hours earlier...
I'll mail them..
West coast is two hours behind central time, its 5 pm there now...
Might not be open on friday...
I dont care, my order's about a month late now :)
I dropped a mail and we will see what happens..
though I didnt have a order number, I'll have to mail them it tomorrow when im at work
cant be that many buyers from sweden anyway..
Might be a few...they make allot of those things...
anonimasu, dont foret to order some CE mark stickers too ;)
unauthorized stepper drives, oh noes!
robin_sz: for the geckogs?
as if people have a life
[03:20:26] <jepler> http://www.penny-arcade.com/comic/2002/11/25
jepler: got my wireless card working in dapper. Now I just need to get my touch pad working satisfactory. it is way to sensitive (mainly the double click)
skunkworks: I like mine just fine with the defaults -- I'm not sure what you have to do to change it
I have found some info on it. Just as everthing else - doesn't quite fit my situation :)
ok time for bed - night
ubuntu satanic edition: the distro of the beast http://parker1.co.uk/satanic/about/
can you play a cd backwards?
I always thought there was something off about ubuntu
bbc sez it will make some movies available to bit-torrent sharing, Dr. Who, Red Dwarf, Fawlty Towers... http://news.bbc.co.uk/1/hi/technology/6194929.stm
no, not to bittorrent, but to a site the maker's of bittorent created "Zudeo"
this peer to peer stuff looks pretty vulnerable... i gotta pass
I hope to get a spindle load meter today :)
To some days I asked I eat to install emc in slack
say to me for install kernel 2.6 in slack..
i have install kernel 2.6
I did not obtain to install rtai
they could help me?
its possible install emc in slack?
rafa: yes, but not easily
it has some tutorial one?
[11:17:25] <alex_joni> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?RtaiSteps
but it's not going to be something easy to do
in ubuntu a one kernel pre compiled
expect at least one week of work to get it right (if at all, depending on your kernel hacking skills)
kernel 2.6 magma
rafa: indeed, others have done that already
i have kernel 2.6
my kernel is 2.6.18
rtai and adeos has no patch for 2.6.18
there is for 2.6.17 and 2.6.19
but it's correct
the 2.6.19 patch is 6 days old, so I would _not_ try that
no in 2.6.18?
joni i have 2 kernels
please one moment
my kernels is 2.6.18 and 22.214.171.124
acemi: oddly adeos doesn't have a patch either
rafa: either get 2.6.17, or patch 2.4.33
2.4.33 is possible?
it has http://cvs.gna.org/cvsweb/magma/base/arch/i386/patches/hal-linux-2.4.33-i386-1.3-03.patch?cvsroot=rtai
please i go to download
it could explain me as to install this?
its a patch
e knol to make
rafa: please ask about specific problems
rafa: the general way to do it is described in the wiki, and in the README and INSTALL inside the 3.4 rtai package
this should also help: https://www.rtai.org/index.php?module=documents&JAS_DocumentManager_op=downloadFile&JAS_File_id=46
sory for question
it is to apply the patch ...
make menu config
something like that, depends on the kernel version
"menuconfig" not "menu config"
old kerneles also need make bzImage if I remember it correctly
I deceived myself
yes mame bzImage
yes make bzImage
you also will probably need an initrd file
because it does not have packages for slack?
slack and other distribuitions install rpm packages
I understood it's not easy to make rpm's for kernels
there are some rpm's for FC3 if you want to try those
but I'm not sure they would work
[11:56:30] <alex_joni> http://www.linuxcnc.org/rpm/
nobody tried this?
not that I know
but I know there was some guy from italy that installed rtai on slack
<pier_gar> linux ker 126.96.36.199 rtai 3.3
[12:03:38] <alex_joni> http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2006-08-24.txt
it seems in the end he got rid of slack, and installed ubuntu because of parport problems
please one question ins C programing
relatde to emc
I can ask?
father just purchased a car lift from a local garage - boy will that be nice.
sigh - if only I had the space ...
well it is going to requier pouring a bit of concrete - but not a big deal
remember - concrete has no tensile strength
:) we are over-doers. my basement has rebar 1' on center. and mesh
drives my wife crazy ;)
the overdoing, not the rebar, right?
it would be weird for her to care about rebar ;)
my wife hates that as well
the rebar? ;)
of course - she's like a female Magneto ;)
ohh sexy - cool
but the flying belt gives her gas, so she doesn't do that much
oh - any update on the group buy? (how payments can be handled?) thanks for getting this going.
no update. I emailed Pete W yesterday, and figured I wouldn't start with the calls until late today or tomorrow sometime ;)
though Alex wants one now also, so only cradek seems to be holding out :)
pear pressure isn't helping?
no pears here
pier pressure? ;)
pear pressure happens around middle age ...
peer - sorry ;)
it hasn't helped yet, but now that I'm back in the states, we can turn it up a little
I wonder if he is covered in snow over there
shielded ribbon cable is expensive
like $2-$4/foot for 50-conductor
time for tin-foil ;)
it does make nice round cables though - ones that can be sealed in cable glands and the like
skunkworks: no, we only got rain
better protection as well - got PVC / paper / braid / aluminum foil jacketing over the ribbon cable
jepler: raining hard here also (I would rather have snow)
I guess that means we'll have terrible weather over the weekend
ok, now that is cool
I selected the table of mesa stuff from jmk's website, hit "paste" in OO calc, and it actually worked as I hoped it would
actually the rain's stopped now and it's just unnaturally warm and foggy out
raining pretty hard here.
only my driveway was slippery. the roads where fine.
hmmm - I think the 7i30 and 7i32 are the same thing with different connectors
The boards do look quite similar. The manual for the 7i32 did mention 4 axis - probably a leftover from the 7i30 manual.
4 h-bridges - means 2 stepper
it looks like you use 2 PWM channels to directly set the current in the two coils of the stepper
unfortunately, that means that you need to change PWM values very rapidly to get "steps"
the pin descriptions are identical, with the exception of the board name change
I guess that means I don't have to get a 7i32 then ;)
the board layouts shown in the pdfs are pretty different
nah maybe that's just the connectors
time to see some hockey..
heh - see you
I just noticed - looks like the partnos/descriptions of the two 7i39 versions are reversed on jmk's site
oh - could be
good thing nobody is buying one ;)
I was thinking about it - but you never know which version of BLDC motor will show up surplus.
yeah. I was just looking on eBay - not many BLDC motors right now
wasn't that what etla was selling?
I figured the LV would be good for one application I have - reasoning that low V / high I is more suited for low speed high torque applications
Did Surplus Center sell out of theirs?
very rapidly, I think
somebody mentioned it on CCED
i'm testingt 2.1 branch, all is fine except Classicladder not saving a new clp file
are you running one of the sample configs, or have you copied a config to your home dir for modification?
in a new location
ok. that kills my only theory ;)
SWPadnos: how are you doing with matching names and addresses to the "names" in that table?
oh - I haven't really started actually
I did stick the data into a spreadsheet though
I have a few here, but I think most (all?) of them copied yo already
hmmm - I only have 2 or 3 emails, and I think only one has an address
also Alex mentioned that he'd like a 5i20 (only)
hmm, I suppose I should send you my address too (as well as everything else I've collected)
well, I still don't know exactly how we'll be handling it - I'll be calling Peter later today (it's only 7:30 there)
I just added alex, and swaped the -LV and -HV on the 7i39
ok - thanks
I'm not sure when I'll find out how the ordering process will work. I don't want to be too much of a pain to Mesa
Someone can tell me how configure ini file for use Home_sequence?
right - we want to balance the pain between them and us (you)
daniel_br: explain what you want to do
home all axis with one click
jmkasunich: please add a 7i30-4 to my order
daniel_br: get them to work individually first, then set up HOME_SEQUENCE and HOME_IS_SHARED
jmkasunich: please put me down for a last-minute 5i20 and 7i30-4
jtr - done
daniel_br: HOME_SEQUENCE is only for 2.1
cradeck: some ini file with this config for use as sample?
the _pear_ pressuer worked ;)
jmkasunich: thank you
daniel_br: no, I don't think any sample configuration is set up that way.
daniel_br: but the documentation looks clear to me
I am also having trouble saving the classicladder setup in 2.1 too
the sim/axis.ini has a moning sequence
a homing sequence
jepler i will see that example and test it
jmkasunich: thanks for adding me
jepler: moning sequence sounds nice
or mourning morning
Jmk, its possible send me one 5i20 for Brazil i can pay with paypal
I don't know
can I hook a 7i30-4 and a 7i37 to one 5i20?
there are customs and shipping issues
cradek: you can hook up to three interface boards to one 5i20
customs only in brazil
(there are three identical ribbons)
This I pay here
the 7i30 on the motor connector, and up to two 7i37 on the I/O connectors
(depending on the config)
SWPadnos is right
wish they would have used faster optos on the 7i37
jmkasunich: thank you - was away
USPS can send this for about USD 25.00
all three are "identical" only in hardware terms, if the config treats them separately then they aren't identical
you can also do things with pull-up/pull-down resistors, and change the supply voltage per connector, I think
jmkasunich: add a 7i31 to my order
christmas time ;)
03jepler 07v2_1_branch * 10emc2/src/hal/classicladder/classicladder_gtk.c: allow GTK_RESPONSE_ACCEPT and GTK_RESPONSE_OK to both trigger the 'save' action
daniel_br: I found a problem with classicladder that prevented "save as" from working. "save" still has a problem, because it does not seem to know the correct filename to use
jepler: thanks for that
daniel_br: thanks for bringing it to my attention
03jepler 07HEAD * 10emc2/src/hal/classicladder/classicladder_gtk.c: merge rev 188.8.131.52: allow GTK_RESPONSE_ACCEPT and GTK_RESPONSE_OK to both trigger the 'save' action
halui and feed-hold and m53 p0 and p1 working nice in my tests
nice to hear that
thanks for that also
what metric size correlates to 10mm diameter thread?
eholmgren: maybe I didn't understand the question
I might just be retarded
making something for work and I need _metric_ tee nuts
Yea, Metric fastener diameters are straight forward...its all the pitches (DIN, JIS, ISO,ANSI) that are
metric threads: M<diameter in mm>x<pitch in mm> ;)
from what I could tell at the hardware store, the bolt was 10mm x 1.25mm
M10x1.5 I think
oh, 1.25 exists too
Yep 1.5 is what an "M10" is...
corresponding roughly to coarse/fine threads, I guess
Take a look at 12 mm bolts though ?
those are the exaust trubine manifold bolts on my car ;)
12mm was too big
1.0, 1.25, 1.5, 1.75 and one of them is really close to an english size...
Anyway,,,just a comment...
they had 10mmx1mm and 10mmx1.25mm
1mm pitch was way too fine
1.5 would have been noticably different from 1.25, correct?
at least as much as 1 was from 1.25?
not quite as much, but close
(1.25 is 1/4 more than 1.0, 1.5 is 1/5 more than 1.25)
cradek, jepler: to minimize shipping and hassle (either at Mesa or for SWP) what about shipping your stuff together
bet they don't mind
jmkasunich: please add a 7i37 to my order then
jmkasunich: of course
SWPadnos: what is your email address?
at sover dot net
SWPadnos: I'm doing a spreadsheet, with real names, email addys, street addys, and phone numbers
hrrmn... McMaster has M10 tee nuts, but they don't mention the pitch
skunkworks, spadnos at sover dot net
jmkasunich, I have one, minus the addresses :)
cut/paste actually works as expected from Mozill ainto OOCalc
same thing into gnumeric
jepler: how emc number in(s) and out(s) in a classiclader config?
didn't we get an email with everyones address from the cnc workshop ;)
I believe we did :)
SWPadnos: I think you have my delivery address on the check I sent
I'll copy it down before recycling the envelope and depositing the check ;)
daniel_br: classicladder.0.in-00 is %i0, classicladder.0.out-00 is %q0, etc
SWPadnos: you have an email. Just in case ;)
ah - so I do. thanks
ok, I have real names and email addys for everybody except A-L-P-H-A
only four addresses though
no thank you - and thanks to to jmk also
(well, five, I assume SWPadnos knows his own)
heh - last I knew ;)
yes, thanks guys, for doing all this work for us
skunkworks: can you /msg me your addy and phone number?
I'll get it to you with A-L-P-H-A's
in a sec
jmkasunich: sending you an email.
acemi: nice job on the debian wiki page
there was an user sooner that uses that setup
but debian changes the default kernel
it will released with 2.6.18
yeah, no RT for 2.6.18 though
Xenomai might be the exception there
ok. list is filling in nicely
and there's a slight chance that rtlinux free might work on 2.6.18, but I'd never try that
can't you just take the nearby rtai patch and hack it into applying?
need addys for jepler (or just send to cradek), steves_logging, dave engvalls, and tom mccarty
jmkasunich: send mine to cradek
cradek: 2.6.17 or 2.6.19 ?
i'll try to use 2.6.19 patch
that way he can pay for it all and put some nice christmas wrapping on mine too
it'll probably barf quite a bit
seems like a patch +-1 version ought to work with a little fiddling
cradek: seems like the difference between 2.6.x and 2.6.x+1 is bigger than 2.4.x and 2.4.x+1 ever was
yeah, but installing 2.6.19 might be easier
it's true I never tried
bbl .. lunch
using dapper is easier :-)
someone should check whether the dapper kernel works on nuisance
coworker got puppy booting on a key chain drive. pretty cool little package. (the non emc version)
* skunkworks thinks it looks a lot like windows 95
which WM? blackbox?
ah - don't know.
JWM. Fvwm95 & IceWM are packages
I don't know which one was the default. - sounds like fvwm95 ;)
I call it YuckWM
[16:39:24] <Lerneaen_Hydra> http://fvwm95.sourceforge.net/screenshot-full.gif
I'll take the w9x look over most things
in fact I made a w9x-style theme for my wm (icewm)
wow, I hadn't seen netscape4 for a while
what - no hi-color fonts?
it's so ... clean looking
nothing is rounded or shiny
look at the square buttons with clear pictures and text on them!
how can one live without jellybuttons?
it's like somebody removed 30% of the ugly from motif
you can even tell they're buttons
how can anyone live without stealth buttons that require you to mouse over them before you can tell that they do anything?
I must port EMC and everything else open source to Vista!
here's what a "desktop" should look like: http://emergent.unpy.net/files/sandbox/desktop.png
mine is slightly less blue - more gray
but same general idea
same terminal font too, I think
mdynac: hows the edm servo tuning?
does anyone know of a software/data liscence that allows free reuse for non-profit purposes (and forces open source), but for use in commercial applications with a royalty?
does logging work in cvs head?
i keep getting error:invalid command name "emc_log_isopen"
when you do what?
well, thats a completely different question
no, that's not a question :-)
that logging was removed a long time ago, and that message means there is a bug somewhere
Lerneaen_Hydra: you can "dual license" your software: let the user choose from the GPL or a commercial license that you would have an attorney draft for you--the latter requiring payment of some fee.
we usually use halscope these days for "logging"
in tkemc when i click on settings.....logging......
jepler: oh, so you don't know of any pre-made licsences that do that?
hmm, that's not good either
sounds like the bug is someone didn't take that out of tkemc
license in the US, licence in the UK
oh, I see
license it is
SWPadnos: huh, I didn't know that one
it's a word of a different colour ;)
SWPadnos: did you see the enclosure I found yesterday?
yep - both of them
the big one is pretty much the same as the one I have, but I think mine is deeper
so how deos on check following via logging...
if the tkemc thingy is broke
mdynac: use halscope, take a nice screenshot if you want to record it
Lerneaen_Hydra: I've never really investigated royalty-based licenses, so I don't know of any "good" ones
SWPadnos: I would have liked one a little deeper, but I also want to be able to open the door all the way
k, guess i'll go figure out halscope....is there any instructions for checking ferror using halscope?
Lerneaen_Hydra, see if the trolltech pay license is on their website
besides, you takes what you can get
jmkasunich, yeah - the door thins is a problem ;)
mdynac: ferror is one of the things you can plot - there are no special instructions
I was very happy with the one I got, some were absolutely filthy, full of holes, dented, etc
mdynac: haven't you used halscope before?
mine has several holes, but I think I'll need more than there are, so it's not a problem
i think i fired it up once......
why was i supposed to?????\
SWPadnos: ooh, that sounds right now that you mention it
it did come with the backplate, some terminal strips, and a nuce current transformer as well
mdynac: I'm just surprised you haven't tuned with it yet
yeah, I wish mine had the panel, but...
3/16 aluminum will cost me about $60
mdynac: it's just like a real scope, but you can scope internal emc 'signals' such as position, following error, as well as external
that's what the whole thing cost me (and you)
today is the day......i probably should have done this a while ago.....
I'm sure steel would be cheaper, but aluminum (and thick) means its easy to drill and you can tap the holes instead of using nuts or crappy thin sheetmetal threads
thx gotta go, merry christmas all!!!!
alu also makes a good heatspreader
bolt the bridge rectifier directly to it
that reminds me - I should see if my transformer's smoke seals are working :)
jmkasunich: one last change on my order? add another 7i31 and another 7i37, please?
so that's 1 5i20, 2 7i30, 1 7i31, 1 7i33, and 2 7i37?
That way I'll have all of the hardware to mock up a plasma cutter control system.
oops - 2x7i31, 1x7i30
ok. I noticed the error because I was about to suggest another 7i31 ;)
jtr - on the phone, hang on
ok, jtr - please tell me exactly what you want (instead of "add one more" cause I don't want to add twice)
change 7i31 and 7i37 to qty 2
gotta run - bride is standing behind me with a spear - gotta take her to lunch. I'll catch on the readback.
45 boards total
I make it 48
or 49, I can't decide
did you see the email from greg?
03cradek 07v2_1_branch * 10emc2/tcl/tkemc.tcl: add the hal tools and remove some obsolete things from the menus
03cradek 07HEAD * 10emc2/tcl/tkemc.tcl: add hal tools
that's a lot of boards
I still may throw in one of the BLDC driver boards, but I can't decide which one
03jepler 07HEAD * 10emc2/src/hal/drivers/serport.comp: fix module parameter documentation
03jepler 07HEAD * 10emc2/src/emc/usr_intf/axis/extensions/emcmodule.cc: provide the symbolic debug constants to python
03jepler 07HEAD * 10emc2/src/emc/usr_intf/axis/scripts/debuglevel.py: add script to set emc's debug level
03jepler 07HEAD * 10emc2/src/emc/usr_intf/axis/Submakefile: add script to set emc's debug level
well that was fast
03jepler 07HEAD * 10emc2/share/axis/tcl/axis.tcl: add menu item for debuglevel script
one of you can back-pork it
not a bugfix :-/
hmm, neither was adding a menu to tkemc
* cradek ducks
yuck, it doesn't exit when emc2 does
like emctop, it lingers...
03jepler 07HEAD * 10emc2/scripts/emc.in: use @WISH@ instead of wish
03jepler 07HEAD * 10emc2/scripts/emc.in: kill emctop, mdi, and debuglevel at exit -- use pidof -x because they're scripts. simmot was removed, don't bother trying to kill it.
what's the max length on a parallel printer cable?
depends who you ask - I think it's 6 feet
[17:46:18] <cradek> http://en.wikipedia.org/wiki/IEEE_1284
I know a guy that knew a guy that ran one 20 feet without a problem ;)
I was doing support in the mid-90s and over-long low quality cables were a constant problem
it sure could be better today (stronger drivers)
gotta go, lunch!
somebody could say me as to download emc 2.1
[18:19:06] <skunkworks> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2
starting at 3
2.1 is not released yet, you need to get the source from CVS and compile
that webpage has instructions
I know that it has that to use cvs
which the line of cvs?
read the instructions on that wiki page
i have debian
i want emc 2.1
jmkasunich: I hope jon was saying his drives and the mesa board where untested
do you have a realtime kernel for your debian?
look at item 4 on that page for a way to get targballs
and item 5 for info about using debian
cvs -z5 -d:ext:firstname.lastname@example.org:/cvs co emc2?
you need a -r tag to get a specific version
you want the v2_1_branch
it could say me as
Hey les.. Long time.
yeah just busy
all those high-profile, high-dollar projects done? ;)
I have to do a show and tell in chicago in a couple weeks....the patents are filed
rafa: I don't know the exact command, I would have to look it up in the cvs man page
you can do that yourself
you just need to know that you want to check out the v2_1_branch
not done though....looks like I will manufacture the thing!
les_w: so... when is the gantry getting emc2? :)
What car did you buy ?
I upgraded the little mill here to EMC 2,,,went well...
I do not obtain
i need emc 2.1 because halui
hi wb9...I was away
I bought a lexus.
reliability was a big concern since I am so far from a dealer
I am watching the news (on hdtv on monitor 2) web surfing for parts for the machine, and irc here, hi..
rafa: look at section 3.2 of the installation instructions, and change "-rRELEASE_2_0_5" to "-rv2_1_branch"
I'm basically waiting for glue to dry
So, which Lexus did you get ?
but I can see it cure on the impedance analyzer
People in Seatle are runing their houses off their Prius's ...
I got the GS sports sedan
no power otherwise...
kinda MID SIZE
Yep, familiar with it, they make a hybrid one too...
hey...no fossil fuel in this house....100% pellet heat
Yep, I remember you have all that timber on the property...
but I have to buy the pellets
i need install emc 2.1
but all computer controlled stoves
How long does a tone last ?
Not sure about EMC 2.1....I just did the Live CD ubuntu install here...
I think that is 2.0x ?
I am burning a ton a month
1 55,000 btu unit in the house, and another in the shop.
We had sub 10 F weather here a few weeks ago...
But since its been warmer than usual...
It has been 10 here too
Yea...the shop probably uses up most of it...
Guest464, look at section 3.2 of this page: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2
actually the house because it is old and leaky
as to catch emc from cvs?
Guest464, yes, you need to use CVS to get the v2_1_branch
how to make?
that's all in the instructions page I linked to
you need to change one thing in section 3.2, change "-rRELEASE_2_0_5" to "-rv2_1_branch" (you may also want to change the directory name)
alex jone it had passed me the instructions
Thinking of getting a rotary table and doing the fourth axis here...
Prius has your ink on the rearview mirros Les...
Comes in handy...
how to use cvs
that's a deep topic, which you can find a lot of information on by searching with google for "man cvs"
in the morning ..
gentily alex joni had explained me as to make download of version 2.1
please help me
a need 2.1
because i need for a 1 boton eexternal
if you cannot follow the instructions maybe it would be best to wait for 2.1 packages to be released
this boton cicle start
ok i know
i know got a code for cvs
how make it?
oh, wb9....The patent expired on the car mirror heater this august
it was a good run though
Ok....welp, they designed the car around 2002, so ITW probably got something out of it...
I checked on total sales when I was at corporate last time
This version has been produced since october 2003 ...
since 1989 it was $550 million
good run huh?
They better treat you right...
Have my Motenc-100 small mill runing emc2 ...
Only tricky part was the spindle speed control...buy they helped out on here, and its running good...
Yep...similar following errors...
Had to retune the PID's as no FF2...supposed to have FF2 in the 2.1 that Guest was talking about...
I really really want to take off a month and switch to motenc and emc2
yeah ff2 is needed
Next release they say...
Yea, it keeps the error average flat across a movement...
the cnc may get a job making parts for the initial runs of the new invention
wb9mjn: how long did your emc2 conversion take?
that can be an excuse to do the switch
It took about 4 days cradek...but allot of it was wiring up the I/O from the Motenc to the breakout box.
Used to be from the break out box to a parallel port (bridgeport io)...
and you get the nice highservo update rates right?
Also, there is more I/O as there is enables for each axis, rather than all ganged together...so that took some
wiring in the machine...
Similar servo rates to what I had previously...
Hmm...the axis rates are high as they were...
les_w: would you go to a much faster machine if you didn't need isa?
But seem to think the trajectory is set to 10 ms, rather than 1...have to check that...
hi chris...yeah as fast as is needed
Axis is bogging down with the 800 MHz PC...
Double that I think would be good...
Since we are looking at 100k-200k for molds for plastic parts of the invention, It makes sense to do at least the initial runs on the cnc
make the molds ...
heck might even beat a single cavity mold on cycle time on some parts
do you have or need 5-axis though?
but yeah will make molds when the design settles
molds have the advantage of doing both sides (all sides actually) at the same time
I built the machine for an easy 5 axis convert. That's why the z travel is so large
les_w: are you still using the old emc that gives you problems with arcs, or did you improve it?
yeah still the old emc
I really want to switch
card and software
I bet the wiring will take more time than the software
I think you will be surprised by how easy it is to install.
I have just been so caught up in this work
They won't let you just take a month off
how about a week?
The other problem I had was homing...because I am using limts for the homing, and the limits disable the amps..
It works, just barely....but can take a few tries on the Z axis...
heh... a week someday....
wb9mjn: doctor, doctor, it hurts when I do this!
But, it does do full auto homing now...unlike EMC 1 (manually run into limit), the home back out...
wb9mjn: sorry, just teasing
like right now....having to slave away to make an end of year milestone
artificial deadlines and such
wb9mjn: why don't you fix it to not do that?
Its following error trip when the amp turns off...
The fix is to add a real home switch...
biaw....must go to the shop
see you Les
Or, a pushbutton to disable the amp trip circuit during the home...
damn.. itching to get back to work on the K&T :)
Is there a Home output ?
Goes true during homing ?
wb9mjn: I don't think so
hmm...then just a manual pushbutton...
Its easier to do this, then add the home switch, as the liquid tight side of the machine is all buttoned up...
03jepler 07HEAD * 10emc2/src/emc/motion/usrmotintf.cc: remove the % message because it is often printed during simulation (and does not indicate a problem)
But, if EMC had a home output, I could just wire the extra MotencI/O and run that to the amps...
03jepler 07v2_1_branch * 10emc2/src/emc/motion/usrmotintf.cc: merge rev 1.22: remove the % message because it is often printed during simulation (and does not indicate a problem)
thanks, that's nice
* skunkworks was half expecting the last comit from jepler to have a homing active addition ;)
I think wb9mjn is using version 2.0 so that wouldn't help him much
also that change would break wb9mjn's setup which right now is "stop no matter what the computer says"
a manual button to push while homing still has that safety
Yea, its a hardware disable of the amp +/- limit...and computer disable of the amp enable..
Amp has three enables... + - and eitherway...
Also had to wire up seperate out the Estops on the EMC2 conversion...
Computer amp limit disable might be too dangerous...
But, a home output could light a lite, to tell the operator to push the button...
That way, there is a human in the loop...
or use a sticker marked "push this while homing" :-)
If the software is in error, the hardware amp limit could be defeated...
03jepler 07HEAD * 10emc2/src/emc/usr_intf/axis/scripts/debuglevel.py:
get rid of debug options that are useless to set after startup
make the labels use the same font as axis
make the debug options appear in the order shown in the source code
when you upgrade to emc2.1 you could make the same button enable the amp override AND perform the homing sequence
(hooking it through halui too)
That would be neat....
you'd have to keep the button pressed through homing sequence but it sounds like that is true anyway
Home operator switches...
hm not sure halui can initiate the homing sequence
Going to have to get one of those 4 button switches for my operator push button station...
I don't see any signal for it
Think I have seen those....
Or just settle for one...
I have the single buttons already...
And multiple switch blocks....one for the each amp, and one for the signal to EMC...
wb9mjn: your button could initiate 'home all'
Have to see how the fail safe falls out...
Hopefully I have an extra shielded quad pulled to the PB station...Think I do (for the old pot speed control)...
Might need more wires though....another quad or two...
cradek: looks like 'home all' isn't implemented in halui in 2.1.
Don't have the switches I need....only two chrome handled selector operators left...one detent, one momentary...
Need a pushbutton...
When its done, the PB station will actually look like it was planed that way....hi!
Has 4 postions...Estop, Spindle Enable, Spindle Control Selector...and the fourth with be home...
Spindle Control Selector has Manual - Off - Computer ...
Enable button engages the Spindle contactor after power down or Spindle Selector set Off...
i need emc 2.1
please help me
oh god, it's rafa again
I don't remember him
how many languages can you speak? I have trouble with one ;)
cradek: he's more often known as GuestNNN
is any bridgeport knee mill going to come with ballscrews, or just the ones that were originally cnc?
only ones that have been upgraded
I don't know if ballscrews were a factory optoin on the manual machines
even the old cnc (like the boss?) are not ballscrews originally?
the CNC should be (but I'm not sure)
cradek is shopping
ie, all CNC mills are ballscrews, but not all ballscrew mills are CNC ...
(though the "all" in there may be wrong)
so for a conversion you'd want to find one with the crappy old steppers on it, and throw them out?
skunkworks: biggest problem is no 3 phase power available
it depends on the price. I got a good mill, then bought new ballscrews off eBay for $600 or so
how much rework did it take to mount them?
none - I just had to take the table and saddle off
the ballscrews were a conversion kit for a BP, with screws, pre-mounted nuts, and a yoke
oh they were specifically put together for converting that machine?
cool, that's nice to know
actually, I do have to do a little work. the ballscrews are about 1/4" longer than the old screws were (not sure if that's due to the original machine having a power feed or something else)
so I need a flat plate with a few holes drilled in it, to use as a shim between the table and bearing mount
cradek: any pictures of the barn?
if the spindle is the only issue - I would buy a vfd that takes 220 single phase. (assuming they are out there - would hope so)
do have that out there.
usually the smmaller ones I have seen allow that at some derating
that's good to know too
it's also quite easy to make a rotary phase converter
even I did it
get two motors...?
* cradek is obviously clueless
a 3-ph motor will run from single phase, if you get it started correctly. once started, you can start and run additional motors from the 3 phases of the first motor
(with suitable capacitors included)
it works great here :)
I got a cheap 5HP motor at a local repair shop, added a few components and an enclosure, and voila: 3phase power
Jymmmm has changed the topic to: Welcome! EMC (Enhanced Machine Controller) is a linux-based CNC control. | Latest release: EMC 2.0.5 | http://www.linuxcnc.org
|| cradek is obviously clueless
* Jymmmm is ONLY quoting what has already been said.... nothing more, nothing less.
but but - we want cradek to work on rigid tapping - much better with the vfd ;)
[21:00:26] <SWPadnos> http://www.metalwebnews.com/howto/phase-converter/phase-converter.html
One of the Indian guys who used to be at work, said in India they would run three-phase motors using one-phase
I probably have some prints of the ladder logic in mine
an inductor and a capacitor...
* Jymmmm is clueless about that, no obvious bout it!
yep - stick a start cap on it, and additional caps between the wild leg and the two legs of the 1ph feed, and it should work, but at 2/3 power
No, they were phasing the current with the cap and inductor...
Or maybe just a cap ?
that should only work when the load is well known
yeah - jus ta big cap is fine for startup, and the motor will continue to run on one phase
They left the cap in...
actually, the cap is only needed to insure that the motor goes in the expected direction. it should still start and run on one phase without it
I never got that.... whay a cap would determine the direction.
because it delays the voltage to the other leg, and that gives a little push in one direction vs. the other
Hell, I never got why an AC motor always turns the same direction
SWPadnos ah, ok
ok, time for another topic change
what about 1ph motors?
like on a drill press or saw
single phase electric motors only go in the same direction if they're specially designed to do so, but either sticking a start cap on them or by changing magnet angles or something
Ok, so AC motors are wound differently to determine direction?
nm... save this conversation for next year
when you look at AC motor theory (something which I detest), there's a real and an imaginary phasor, and they go in opposite directions. it's random as to which one goes what way, so you have to coax it a bit
the motor follows the real phasor, not the imaginary (I think - it's been a long time since I've looked at any of that stuff)
Yeah, wait till next year when I have time to pay attention - something I'd actually like to know more about.
I can look up the name of my old textbook if you like ;)
I think I passed that class
does anyone have a suggestion of how I could put a pause in my g-code?
now ask me a hard one
when you die with your eyes open, do you still see?
well, technically, cradek is correct, because the question was whether *you* still see...
considering he knew the G4 question, I will defer to his wisdom.
and since *you* cease to live when you die, you don't still see, even if physiologically/optically, there's still light hitting your retina and/or electrochemical signals hitting the brain
I don't get the finer points of that argument, but pause is still g4
[21:16:29] <cradek> http://www.hgrindustrialsurplus.com/search-products/product-detail.aspx?id=40-906-013&searchtable=2&sortExpression=&SortASC=&pageSize=50¤tPageIndex=19
guys that got their heads cut off on guiotines were still able to blink when asked, even after their heads were severed.
they have some neat hackable stuff, too bad they're often so optimistic about the prices
owhite: blinking/hearing/seeing people aren't dead yet
again, you are so wise.
and you're very generous :-)
but very suggestible, since they do what they're told (and presumably they got executed for not doing that)
learned their lessons, I guess..
a little late, I guess ;)
I would imagine getting my head severed would sharpen my focus.
I see les_w surfaced
one time I got thrown off my motorcycle about about 90, and I would definitely say time slowed down, or my sensory input rapidly went up.
I've had that experience too, usually right before a tragic event (like I imagine your landing was)
I usually find the moment you go down is very very fast .. then time slows as you skid along ..
there's a neurogical term for it "weapons focus" the phenomenon of only focusing on the gun that is pointed at you and nothing else.
the momen as the front end loses grip and down it all goes ... I find is so fastI can barely appreciate it even happening
can we make this the qotd? <cradek> I don't get the finer points of that argument, but pause is still g4
jepler: that is a good one isn't it
let's g4 and reflect, shall we?
perhaps we have dwelled on it long enough.
I forget ... do we have a "pause until ..." gcode?
gee - you could be right
pause uuntil what?
until ... the specified time runs out
robin_sz: there's m00 to pause until the operator says to continue
some input changes ...
other codes like toolchange can involve pauses
ah, wait for input
there's not "pause until HAL pin goes false"
wait for godot
first you have to 'newsig godot bit' then 'linksp godot interp.din-00'
but then axis is incapable of showing you an accurate preview of what happens after godot arrives...
hey, who here uses tkemc?
I have used it, but don't regularly
I'm wondering if the slider for feed override reflects % of some speed, or is in inches per minute.
it goes from 0 to 100.
override is a percentage
you can specify the max override in your ini file
notice I'm not following that up with a philosophical question. :-)
as long as you put easy questions in between it's ok
you can use M00 together with halui.program.resume
you could also use motion's feedhold input
that's a pin that acts the same as the resume button on the GUI (be it AXIS or tkemc)
hello alex_joni :-)
Never use G04 dwells and your hands as a tool-changer. It takes longer than you think... Use M00 or M06 instead
or M01 (recently :)
M01 together with a dwell
use M6 and the manual toolchanger script
or that :)
with hal_manualtoolchange you can have the machine move to a set position and pause until you click a button in a dialog that pops up and tells you the information about the new tool you should insert.
[21:38:35] <jepler> http://linuxcnc.org/docs/html/gui/axis/index.html#SECTION00180000000000000000
hm I thought it gave the tool diameter there too -- guess not
just the number
that would be usefull
* alex_joni is happy :)
just got my camera backpack
just in time (if you're Christian) :)
cradek: what did you find hackable about that HGR item
just a grungy box with some buttons, and a weird keyboard thing that drive up the price
yep, just that
plain box would be cheaper
for some reason, they vastly overprice electronics
stuff that is obsolete, busted, or both, and the price goes up
I'd pay money for the box and buttons, but the other thing - bleah
I was reading back and saw you asking bport questions
do you have one already?
or am I mixing you up with SWPadnos who I know does
no, but my eyes are open
hey people here's a question. suppose I have a detector that's mostly based on software. the program would watch my laser and determine if the laser had cut through the metal.
it would do this by counting pixels above a certain brightness.
and as emc was running, it monitor when cutting was occurring, and follow the x-y position of my table.
could an external program do that? know when the table was moving, and when the laser was supposed to be on?
your application would have hal pins
the advantage would be, that when the laser does not punch through, I could record that, and run the laser in a follow up procedure.
you'd hook them up to the motion controller however you need
any C program running on the same PC as EMC can access the hal pins of your system
in general, that's how hal_manualtoolchange works
so I'd have to have a different motion control system other than something like tkemc?
I'd need to be able to track x-y position of the table.
x and y positions are available as hal pins
oh oh oh.
that'd be easy then, er, _possible_.
* skunkworks would make it mechanical :)
make what mechanical?
owhite, most (or even all) commercial laser simply have a pre set pierce time for each metal thickness and type
*waits to find out what SMOP means*
wait - isn't your laser stationary?
follow the cutting by taping it to the spindle
simple matter of programming
my laser is stationary. the table moves the part around.
owhite: simple matter of programming
at that price I gotta wonder what is wrong with ti
cradek: weight: 30000 lbs
you can't have the sensor suspended under the material - stationary on an arm?
"it doesn't work"
nah, maybe 10000
maybe it's radioactive?
can't tell if it has any kind of toolchanger
not sure what I would sit that on.
hm maybe not
skunkworks: I could have the sensor under the material, yes. I was thinking it could be a ccd system going to software.
I dont think its really practical to do that ... anything on the underside of a laser cut soon becomes dirty ...
its also not necessary in practice
here's a rigid machine: http://www.hgrindustrialsurplus.com/search-products/product-detail.aspx?id=30-142-014&searchtable=2&sortExpression=&SortASC=&pageSize=50¤tPageIndex=0
right. I was thinking of sacrificial plexiglas over the detector.
toolchanger ? somethings next to the spindle
robin_sz: what would you do to detect piercing of the metal?
owhite: faith usually works
is it dark under there prior to pierce?
I wouldnt ... I;d just program x milliseconds and thats enough
maybe a simple photocell well off to the side
alex_joni: god has failed me too many times :-)
hitachi! when they copied middle European machines
looks kinda like an old cinci
robin: I have limited wattage. the system fails sometimes, I'd like to track when it doesnt cut.
I dunno if this one was CNC, or just had a clunky old DRO on it
[21:54:19] <jmkasunich> http://www.hgrindustrialsurplus.com/search-products/product-detail.aspx?id=40-659-011&searchtable=2&sortExpression=&SortASC=&pageSize=50¤tPageIndex=1
owhite, how limited?
What's wrong with it ? Probably the Ways are curved now...
its a coherent G100. it produces (the literature claims) 250watts.
that should be OK to 2mm or so
3mm would be dodgy ...
right. sometimes things get hot, the steel buckles a little, changes height enough so it doesnt get cut.
what height sensing do you use?
none. havent found anything cheap enough.
I looked around.
thats the real problem
we built a height sensor for less than 10$
shout out a good lead, I'll look into.
YA WHAT YA HOO NOW?
its not hard .. we just mounted the cutting nozzle on a standard trumpf ceramic
used it as the capacitve element is a simple oscillator ..
what be trumpf ceramic?
as used on trumpf lasers .. with precitec height sensors
its an insulating cermaic block
with a brass thread on to take a nozzle
inductive analog sensors..
so if its part of the cutting head how's it measure the distance to the part?
though thats out of most people's league..
it is the capacitor in an oscillator
npn or pnp 2/3/4 wire ac or dc
closer it gets to the metal, lowert the prequency
and not really practical for a application where you want to have a larger sensing area
robin_sz: would it work for stainless? that's mostly all I cut.
stainless with 250W?
height is critical
hm, dosent stainless cut well?
thin, thin thin stainless. usually 0.032.
as it disspassiates heat like crap :)
yeah, height is critical, which is where the conversation started.
I belive some capacitive sensor would be right for that..
well every laser on the lanet in industry uses capacitove height sensing like I described
95% of them use precitec height sensore
hm. well neet.
ultrasonic wouldnt be bad either..
how much you reckon the precitecs cost?
owhite, thousands :)
* owhite is but a simply hobbiest.
a normal capacitive sensor isnt expensive..
anonimasu, unlikely, you need to sense right at the tip, 5mm diamter
not a large area around it
well the other thing that confused me was...
you need control to 0.7mm +- 0.4 max
..what happens when you cut out parts, and that runs under the sensor?
robin_sz: that's shitty.. -/+
pretty much state of the art for a commercial laser at 12m/minute over wobbly metal
owhite, we built our own, about 4 ICs and a bit of analogue ... give 1 to 10v over a range of .2 to 5mm
robin_sz: why didnt you use a comercial sensor?
robin_sz: im just curious
they cost thousands
robin_sz: preci.. whatever isnt the only brand in the world..
robin_sz: any chance you could show me a rough circuit diagram?
this is for our low-budget YAG project
robin_sz: with prietec you are using the whole head as sensor?
anonimasu, please name the other brands ...
burny has some torche height control
using the nozzle only
alex_joni, for laser?
for plasma though
robin_sz: that makes it harder.
robin_sz: though therea are thousand of places that makes capacitive sensors..
here's a huge mill on ebay, currently for $100:
[22:08:57] <aip_tom> http://cgi.ebay.com/Shizuoka-vertical-milling-machine_W0QQitemZ170062481904QQihZ007QQcategoryZ12584QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
name one making capacitave height senors for laser use
baumer, omron, contronex..
I dont see the problem as being able to hack a capacitive sensor -- it has to be mounted in the cutting nozzle itself.
it's in Rochester, NY, if anyone is close to there
no, the sensor is not mounted on the nozzle
just the oscillaotr part is on the head assembly
owhite: what robin is talking about is using the nozzle as sensing area..
owhite: face/whatever you call it..
right. I'm just saying buying a capacitive sensor wont do it. like you are saying, it has to be in the nozzle itself.
mount it on a ceramic block .. these are cheap .. we use about 4 a month .. they are desinged to break when a part flips up
going to go to a friend..
right. the ceramic block is threaded?
yeah, on the nozzel side
it has a brassh collet glued into it
and where is the rest of the circuitry?
small oscillator pcb mounted on the head
signal from 8 to 12 mhz down a coax
8 when close to metal
12 when 10mm away
That is easy to do....
could you give me a basic sketch of the circuit?
mix it with 7.5 mhz to get 0.5 to 4.5mhz
You are talking grid dip meter simple here...hi..
f to V convertor
bit more circuitry for tip-touch sensing
dont want tip-touch sensing.
well, you use it for detecting collisions?
okay. might be interesting. I made a laser pointer pinting up at a light detector.
the detector is the same gizmo used by optical mce.
you need this .. with 250w trying to cut stailess ... well, you are barely above the damage threshold for Co2
you need to maintain really good focus
what focal length are you using
yah yah. hey I've been cutting for a while :-)
quite short I guess, 4" 5"?
soundsa about right
the gap between the nozzle and the metal is like 2mm.
0.7mm is standard
its just a guess.
yeah. its definitely larger than 1mm
using what, 1.0 to 1.2 mm nozzles?
I like it because I clamp the part down with another bit of sheet metal.
and.. and about 4 bar of nitrogen
then if the laser goes over the "clamp", it doesnt collide.
60 psi, 300 kPa.
how thick stainless?
its got to be less than 1mm.
I've tried twice that thick. it was okay.
I just use a lot of the .8mm for my application.
you shouls get around 500 to 800mm a minute cut?
I can. I go a little slower, because sometimes it doesnt penetrate.
...which is where we started. see, sometimes it doesnt cut and its _not_ because of height problems.
height will be absolutley critical for you, +-0.4 and its not going to sut
I thought it would be cool to measure if its penetrating. if it doesnt, then you'd run it again. :-) which is what I do by hand now.
so, you cant measure the height while running
hey that would be fun too.
but you are sure its not because of height issues?
to be honest, I think most of the time its height. the main reason being...
...everything else is pretty reproducible. height seems like the most _likely_ problem.
heat gets in, metal pops up or down
yep. sometimes I engrave and it goes all to crap.
your short focal length meakes it very critical
I use 6", and we notice .5mm very easily
oh. that's a good point. I have the optics to try 5 inch. I should give that a shot some time.
I'd have to buy a different holder for the cutting head. $500.
hey. I _have_ a height detection system. when the laser doesnt cut, the height is off. problem solved :-)
work on some sort of capacitive height sensor, feed it back in real time to the Z axis
yah that would be great.
one of my favourite demos is to hold a piece of sheet under the head, .. activate the height controller, move the piece up and down by hand and the head follows
my original mentor told me _not_ to use real time z-axis adjustment.
I dont agree with him now, but it would be hard to put iit into the system.
right ... well, im sure he knows better than every laser make on theplanet
he was the same rocket scientist that sold me the laser for $6500, when it was worth $28,000 retail. so I'm not complaining.
6k5 for 250w?
I sold a 400w ferranti for £300 a few months ago
is that a sealed laser?
[22:30:16] <owhite> http://www.nilno.com/laser_intro/laser_head.html
I really like it.
nice .. I kow the coherent heads a little
my lasers a are a "bit" bigger :)
yah yah. this in my basement.
I have a chiller next to my washing machine.
800W Haas yag, 1800W optomic CO2 and with a freind we built a 1KW yag
I'd really like to know more about YAG.
the optomic is destined to go on a laser tube cutter
yag is a crystal - isn't it?
is it just as expensive to cut metal?
its cheaper than CO2
oh yeah? what kind of wattage, in general do I need to cut 1-2mm?
well, ideally, about 1kw of c02 or 500w of yag I wouldd say is practical
we find 3mm is hard woth 800w
2mm is ok
how many watts of light make 500w beam on a yag?
30kw makes 800w
thats mine :)
there's a typo on that page, do you care?
sure there is?
would you have a picture of the ventilation system near the nozzle?
I"m building one now. need inspiration.
can you guys see this? http://www.peters-cnc-ecke.de/forumupload/uploadFiles/2982_115674027908_11086_115674027908_roboter123_000.jpg
yeah, you know, to remove fumes :-)
we have a bucket that travles under the workpiece, on a 4th axis .. follows the head
vacuum pipe etc to big filter
[22:39:04] <alex_joni> http://wiki.linuxcnc.org/uploads/2982_115674027908_11086_115674027908_roboter123_000.jpg
latest bot driven by emc2
[22:39:35] <alex_joni> http://www.peters-cnc-ecke.de/forumupload/uploadFiles/11086_115674027908_roboter126.jpg
robin_sz: so it just draws off fumes from below?
[22:39:46] <alex_joni> http://www.peters-cnc-ecke.de/forumupload/uploadFiles/11086_115674027908_roboter125_000.jpg
no fumes are ever above
above is clean
except for a little pierce spatter
well, I'm treating oxygen as the main thing I want to get rid of.
not fumes, really.
and that definitely is in abundance above the part.
at least on my system.
sure its not just coming up around the sides
hot gas rises?
yep. think about it. oxy is shooting through a tiny hole. it doesnt all go through the cut.
it will when you are 0.7mm from the metal :)
oh, you are OXY cutting, not nitorgen!
that's right. that is a consequence of my height.
thats how you cut 2mm with 250W!!!
well I'm told I could use N2. it just cuts slower.
but it cuts shiny clean
the edge is just shiny stainless
well I would love to see a N2 cut. I get dross.
on the back of the cut. how about you?
well, yeah, you dont have enough power really
the dross is because the O2 makes the cut much hotter.
we get no dross at all up to 2mm with N2
and ok to 5mm with oxy
even 6mm on stailess
the other thing about N2, is that you can make N2 concentrators, so you dont have to buy it from the gas supply.
robin_sz: another typo - "One aree we excel in"
do you use a concentrator or buy it?
we use maybe 20 bottles a month of N2
and run at what bar?
for stainless ,, 2mm .. 10bar
the other problem I'm told, is it needs much higher pressure.
150psi to you
right. my cutting head would probably explode at that pressure. _that_ would be unfufulling.
if its not a high pressure head, forget about it
but man, if I could cut with no dross, I would be willing to convert to it.
not with 250w yo wont
oh you big shots are always so sure of yourselves.
in oxy cutting, the stainless burns
in N2, it just has to be melted
and blown out of the way
but at the coherent web site they say it works, for my laser.
you just get much slower feeds per inch.
you want me to try some 2mm for you at 250w tomorow with N2
oh hey, sure. that would be really interesting.
* robin_sz adds it to his list
we cut around 30 tonnes a month ... so I do know * _little_ bit about the subject :)
I also helped a mate build a 1kw YAG cutter from scratch
sounds like fun.
right down to machining the cavities
I bought a pallet of 500lbs of stainless, I dont think I have used a quarter of it :-)
so speaking of which, I'm making christmas presents.
gonna go back to do a little engraving.
I'll jump back on tomorrow and see how the cutting went.
my email is email@example.com, if you want to let me know.
thanks a lot!
that remonds me .. I should upload some pictures of the 'bot
hey - I can't do that
sure - all you irssi folks can do that, but not us chatzilla folks
send a line that contains just a space
was jus seeing if I was still connect afer I brough the mac back from sleep
bitchx let's you do it apparently
I suspect chatzilla is just being too "smart" for my own good
not that sending content-less lines is a feature, mind you
you just sent a dozen like that :D
that was 2 spaces btw
so ... we finally got snow in MN
and everyone is driving like idiots
[23:39:44] <robin_sz> http://www.redpoint.org.uk/photos/upload/robot/Image018.jpg
SWPadnos sure you can... <space>CTRL+ENTER
my new toy :)
ejholmgren: I figured up in MN people could remember what winter driving was like
I can probably send a lot of junk with ctrl-enter
here in NE they forget, since you don't get a good snow every year
what is "snow"?
hmmm - not in my version :)
we dont get that anymore ...
robin_sz: REALLY thick fog
ahh, yes we get fog :)
have you named the bot yet?
robin_sz: what payload does that one have?
seems very fragile to me :D
plus 10kg on joint 3
would have bet for less
the top arm is about 80mm dia
seen the bot I pasted earlier? (homebrew=
thats what poked me into action to post the pics
looks nice too, although ebay would have been way cheaper/better