how have things been with emc lately yall?
cradek jmkasunich: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=45333
not something I'd want to use though
yeah I paid about $70 for something similar (but made of metal)
well, in a pinch, or just to test out might not be too bad
It even comes with the magnetic base whaich I thought wasn't too bad
I don't get it -- why is it so hard to find the clock cycle per instruction of the MIPSM4K core?
try it for x86 some day
instruction cycle times aren't even in the Intel or AMD databooks
huh? of course they are
well, not as of last night, when I looked in my databooks
at least not for the instruction I was looking for (fabs)
SWPadnos: you can read? I'll be damn
err, I mean thank you
[01:58:02] <maddash> http://home.comcast.net/~fbui/intel_n.html#not
Oh, do you know how hard it is to find IEC extention cord these days! Man you couldn't give them away before
what's funny is that the UPS guy left your package on top of two from NewEgg - two little ones (one with a couple of motherboards, the other with a SpaceNavigator)
extensions are pretty hard
digikey has them
nice ones too
SWPadnos: Funnier thing is it was SIGNATURE REQUIRED too
maddash, note that the list of processors ends with the 486
JymmmEMC, yeah - it's generally not a problem here
SWPadnos: were you being sarcastic?
plus, they're working on our road. I had to wair 5 minutes for them to move a tractor trailer out of the way of the end of my street
SWPadnos: having clock cycles listed for each instruction is crucial for benchmarking
SWPadnos: Eh, too bad I didn't toss insurance on it, couldn't had a nice shiny new one.
maddash, no, that cycle listing only lists through the 486. the timings are drastically different for Pentium and beyond processors
and it's nearly impossible to actually predict how long any code will take because of the cache and pipeline
SWPadnos: Oh, and the packing in the box is expensive, so you owe me one for that!
ok. dinner is on me next time ;)
SWPadnos: I see you haven't even opened it yet
one sec ;:)
even the crappy rabbit processor lists the clock cycles along side each instruction: http://www.rabbit.com/documentation/docs/manuals/Rabbit4000/InstructionReference/r4quickref.html#1018476
grabbing a drink brb
wtf is this? some anti-assembly programmer conspiracy?
maybe cause if intel and amd listed those they could break down who is better
maddash I think its more of an issue with chip competition
* JymmmEMC is back
and im only learning asm basics this term
I don't understand -- I must be missing something HUGE
well your asking about instruction timming right?
maybe for RISC processors the clocks needed to execute each instr is fixed?
mips m4k is risc
JymmmEMC, ok. maaaaaaybe two dinners :)
I dont know
SWPadnos: Huh? Two dinners?
maddash, they don't publish the numbers partly because they're actually very difficult to predict
well, I eat a lot
jymmm why not just chop up a cord and solder to an IEC socket?
SWPadnos: aren't the numbers supposed to be designed, not predicted?
SWPadnos: I wasn't talking about the CONTENTS of the box, I was talking about the packaging materials =)
hmmm. maybe I shuold check that paper again
* maddash has migrated from rabbit to pic32
fenn: EW - premolded is da bomb
SWPadnos: look inside the box
JymmmEMC: dunk it in plasti-dip then :)
maddash, sure, but the processors are so complex that a simple 1-clock add could require a cache line fill, which can take hundreds of clock cycles
then it has to go through the pipeline, which can be 5-25 clocks
fenn: Nah, I found a 6' one today, I just woluld rather have a 8 or 10'
so what number do you print? the number of clocks it takes to get through the pipe, or the number of "stages" it takes in the pipe, or the average number that can be retired per clock, or ...
JymmmEMC, ok, the little one may just be lunch :)
SWPadnos: no silly, I said the packaging MATERIAL... the plastic stuff was VERY VERY EXPENSIVE
hmmm. maybe I shouldn't have stomped all over it
(j/k ;) )
SWPadnos: Not the bubble packs!
SWPadnos: the walmart grocery bags were very expensive!
so not that expensive ;)
at least one of them is
SWPadnos: ok the the safeway ones are even MORE expensive
but they keep things safe
SWPadnos: and I would have stomped the bubble packs too
nah, I just didn't want it to get stopped for ebing a bomb of something rattling around
well, I found two 3ft IEC male to pigtails today. that will at least take care of what I need
those are easy to make
from normal IEC cords
those are easy to make, from IEC extension cords ;)
Sure, if you can FIND the OEC ext cords =)
I also picked up a male IEC to feamle 120VAC socket
those are getting harder to find too
what length extension are you looking for?
8 to 10 ft
dont go out of your way or anything. It's just a want, not a need.
digikey has them. they're $4 and up
with shipping $20
nah. UPS ground is pretty cheap. they do have a $25 minimum order though (or you get hit with a $5 feee)
the 6ft I have will do what I need
pic32's only downside? the tiny tiny amount of flash/ram and the inability to use external memory
[02:18:04] <SWPadnos> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=Q127-ND
and the fact that it's a PIC
(though I should be more open-minded. I haven't used a PIC32 yet)
SWPadnos: becasue theres no need to =)
especially with ARM and AVR32 around
OH guess what I saw today
haha, puny avr!
AVRs tend to run rings around PICs
8" FDD, jmusta weighd at last 15 lbs
I remember those
they wanted $35
that's quite a bit
I wanted to buy it for $5, they said no way
but I guess if you had some old 8" disks you needed data from, it would be a steal
It had a bigger stepper motor than the one I have on my machine
probably a bigger spindle too
no, not THAT bad, but close =)
oh yeah, you have a real router on there
all cast aluminum frame on it
got a 14" philips bit today too
a long screwdriver?
damn recessed screws be damned!
No, fits it cordless drill chuck
the real question is - should I have a glass of milk and a raspberry filled cookie before going to bed?
like this but 14" long http://www.plumbersurplus.com/images/prod/5/DeWALT-DW2022-rw-78592-136639.jpg
SWPadnos: It's really good when the screws on the rack are recessed
and then you hit the damn chuck on the wall
do you have one of the ones that has a sheath that slips (so you can hold it)?
like the shorter drywall ones
I don't know if they make them that big
no I mean for 42U racks
magnet for getting it on
anyone have/thinking about a greenhouse?
[02:26:31] <JymmmEMC> http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94519
any avr32 plug-in modules comparable to microchip's http://www.microchipdirect.com/ProductSearch.aspx?Keywords=MA320001
I have no idea of how to solder an IC, so just a plain old chip is essentially useless to me
heh. well, I guess that limits your options a bit
I don't know about AVR modules like that. though we made one for one product (not AVR32, just a mega323 or mega128)
[02:34:08] <SWPadnos> http://www.alvidi.de/shop/product_info.php?info=p7_AVR32-Module.html&XTCsid=618c55f1343415f69669f8761ca778b6
nice, except for the pitiful number of i/os
40 euros = $54.32
doesn't seem too puny
plus USB and RS232
jepler's cutting board sure cut nice. I cut it dry, it showed no tendency to melt
wonder what it is :-/
hdpe maybe (high density polyethylene)
it would be nice for prototyping some kinds of things
(if it's cheaper than aluminum)
see ya maddash
yeah,you give us a good toy 5axisgui.
but the g-code that can play with could not be found any where
you can run any 5 axis program you want on it
ok, now this is cool: http://en.wikipedia.org/wiki/Falkirk_Wheel
ok,if i want to find more about it ,just come to source code? I come your website,little about it except some demo movie
I don't think I have the gcode that made that video anymore - do you have a question about how to program emc in 5 axis?
is that a boat elevator from a river to an aquaduct? wow
yeah - canal to canal
i just come to study kinetics ,so i want to learn more about some cam knowledge,so your platform is good start,but I know few about that,so maybe it is too earlier to raise some question,thanks for reply
sounds great, please come back if you have questions
so far the vesa driver knocked max jitter down from 17K to 13K (was nv driver)
running latency-test with 3 pcs fullscreen glxgears, gimp, oo, mahjong, fspot, terminal, now advantage is 1k better on servo thread and 2k better on base thread ( 1010980/16075 servo, 37539/14918 base ) will let it cook now
same Tyan S1832D as on http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Latency-Test
When I use axis to operate a lathe it shows an "A" axis which I assume is the spindle feedback, how do I set it to not show that information?
A is not the spindle feedback
what is A?
see the sim/lathe.ini configuration to see how to enable lathe mode
A is nothing if you do not have an A axis
for lathe you should see an X,diameter,Z display
the ini file 'AXES = 3' followed by 'COORDINATES = XZ' may be a bit confusing, its a way to skip the 'Y'. what config did you use to get an A axis?
Is there a tool I can fit to a drill press that will allow me to drill holes around the circumference of a piece of pipe?
Alternately, is there anyone here with a 4-axis CNC router that I can easily bribe?
spasticteapot: a v block and a vise?
I was thinking of something that I could rotate with a crank.
a rotary table?
[05:35:35] <spasticteapot> http://www.flickr.com/photos/mikest/254623691/in/set-1552863/
but those are money.
that looks done via rotab for sure.
usually rotabs go on milling machines
but i guess with some finesse and care you could do it on a drill press.
I might be able to borrow one.
Anyone here got a 4-axis router they'll whore out for cash?
undrill_ is now known as undrill
spasticteapot>yes I have one, stay lurking :) £notes welcome
hehe a ex windumb user
Hey skunkworks. You want to answer that or want me to?
rayh: you are more linux savy
How you doing?
Good - have the leaves all changed up there?
Fantastic year. They are falling but it is still very nice.
funny. things are more dull than usual here
it seems to be ramping up here.
yellows and golds, not a lot of reds and oranges
asian beatles are in peak right now.
Ah. Not many around here this year.
skunkworks: you only need to edit /etc/sudoers and you can set no passwd for sudo
Hi Alex. I'll include that thought in the post although I think he wants to not even type sudo.
it sounds lke he just wants things to happen the way he wants them to happen, and damn all this typing anyway
but that could be my lack of coffee talking :)
bah coffee boy gone out /me waits!
we have 2 pots here...
if all else fails - I can walk down to the plant and get a cup.
ok, coffee is on. I may not be an asshole all day
I don't think the presence or absence of coffee affects my assholeness.
hey, kernel 2.6.27 is out
oh that makes my day!
Catch you'se guys later, 'eh.
Thanks for the sudoers thought, alex_joni.
i tested a pc with nv and with vesa, didnt see a benefit. and vesa only allowed 800x600.
posted on the latency-test page
(Your Latency May Vary)
can I use that in the manuals
and the same unit will vary as much as the difference seen, so people should know that 1000 units varience DMS ( dont mean squat)
sure. I'll put it under the Free Documentation license :)
hmmm. I think it might have been a better idea to eat breakfast before opening up the bag of raspberry-filled cookies
hmmm, I guess when you order a couple of bearings to fix the old guys windmill across the road it can be put in the maintenance and repair equipment account :)
"My private networks are protected by commercial grade firewalls at each public entry point, linked by site-to-site VPN."
I love windows users.
* archivist keeps his wndaz behind cheapo routers, it works TM
hydraulic bladders for screw preload - vary the preload with speed - wow
sounds like a good plan..
reminds me of a dot matrix printer it had pneumatic bladder to mode the head slightly (Facit)
archivist there is a HDD at the hursley computer museum that has the head moved my a pnumatic thing!
iirc pumped up with a solenoid
dunno, it was in a glass cabinet so I couldnt see round the back
i think it was 3Mb capacity, so quite a big one
hmm wherse that museum /me googling to find
I have a few old computers
its at IBM hursley
not sure if its generally open
ew posh building
[15:11:58] <archivist> http://www-05.ibm.com/uk/locations/hursley_explore.html
doesnt show museum though (cant find yet)
dreadful. and that big green sign is so tacky
so they loosen the nut when moving fast & snug it up when slower (or stopped ) ?
or is it like car tappets, just keep enough pressure on
that sounds like a bad idea
it would just increase uncertainty in the dynamic path accuracy, while masking the problem by getting to all the right endpoints
then it doesn't matter what the nut/leadscrew is doing. (to a point)
[15:36:07] <anonimasu> http://imagebin.org/28448
stuff off the part I made at work..
* archivist making third version of swarf
making replacement parts for a singing bird in a cage
cut to close to hole v1, slitting saw moved on v2 v3 seems ok at the moment:)
the winding click is tiny, dare'nt part off yet
Just managed to cut the compressor for my rc heli..... (images are not the best sorry) http://srg.hobby-site.com/public/cnc/compressor-emc.JPG http://srg.hobby-site.com/public/cnc/compressor-emc2.JPG
and a short vid http://srg.hobby-site.com/public/cnc/compressor-emc.AVI
take them at a longer distance :)
to get better focus :)
First real CNC thing I have cut. Not counting pcb tracks :-)
nice work from both you guys :) anonimasu Paragon
I need a toolchanger
if it works for you , the flower symbol means close-up on most asian built digi-camera
there's 4 toolchanges for thatpart..
Thanks tomp. anonimasu that a bit bigger then my piece ;-)
toolchangers make life worth living
it's a valve block for some huydralics..
are any of those surfaces ground? ( anonimasu gets great milled finished )
and the surface was ok.. not really great..
(my better facemill makes nicer surfaces) but I dont have any inserts
the holes are milled too
well, drilled then milled to size
Catch you soon Chaps...
I have a video of cutting some cast iron too
but I dont know what to play it with to hear the sound :)
it's too bad the customers that ordered it will probalby weld it in place.
welding hydraulics is not a good idea
I had a brake master cylinder fall of the car once, previous idiot had welded cast iron to rusty chassis
how I missed the car in front I have no idea
hmm time to clean lathe so parted swarf can be found where swarf used to be
LawrenceG is now known as s1010s1101
s1010s1101 is now known as LawrenceG
I can't wait till i can go buy a parallel cable (tomorrow),... could I just stuff loose wires in to test if the drive works? :p
the "enable" pin on my L297 is just EMC2's "Amplifier enable" pin ,.. right?
at least that's how I like it
we got a manual lathe to the workshop today: http://www.anderswallin.net/wp-content/uploads/2008/10/lathe2.jpg
how'd they make them blurry back then? :)
looks just like the one here
I want a lathe that size..
maybe I'm dumb but what's the big wheel for?
with a MEGA gearbox..
if I get some experience with this one then maybe I'll be inspired to build a cnc-lathe later
oh varispeed change?
probably a variable one
schaublin likes that
my mill has that too
we have a shaublin 120VM here 195x
awallin: just cut a few threads on it and you'll be motivated
cradek: yeah, the real machinist who brought this one up to us muttered something about thread cutting being only for the advanced operator...
hehe, if tere's a tread start indicator it's easy :)
haha, I wouldn't go that far
oh yeah, looks like it has change gears doesn't it
and no thread guage on the one here
build one :)
top left dial is the slow feed
very simple to add a thread gauge...
yep, and worth the work
yep, I tried the slow feeds, it works for both x and z
I've never had as easy time as with one when threading
(dro also helped)
the one here http://www.archivist.info/cnc/works2008/P1010232.JPG
anyone know how the rpm change works? (big wheel left bottom)
[19:14:11] <awallin> http://www.archivist.info/cnc/works2008/P1010232.JPG
sorry, I'm new to this irc client...
if it's varispeed, just crank the wheel while it's running
the one here has had a hard life
and you always have to remember that - don't mount something big and clumsy on the faceplate unless you've previously made sure the speed is turned down
well worn bed but the headstock is solid and it turns very well
important to not crank it while not running ( belt jumps )
and remember to take out the key.
so it's a variable ratio belt drive?
yes, cone pulleys
one set of cones is controlled by the wheel, the other is spring loaded
the belt moves up and down the cones
snowmobile transmission ;)
when this place gets split up Im hoping for the 120VM
the advice I got was to be careful with the spindle on lever, one click above 'stop' is reverse and that may unthread the chuck if it goes into reverse just after forward...
awallin: one varispeed pulley set can give you a 6-8x range, it probably also has two gears (back gear)
awallin, yes screwed chuck on a reversing machine is dangerous
does have backgear top right lever on headstock
and that one you change with it not running...
it came with HSS tools, but my friend tells me carbide insert tools are much better
depends what you are doing
but it depends on what you are cutting
it will be mostly small diameter brass or alu parts
we use a carbide tool, tip lasts about a year the way we use the lathe
? carbide for brass & alum ?
carbide finishing insert perhaps ;)
hss on the small lathes
awallin, cant see movable stops on the bed on yours (one missing here)
they contact buttons on the side of the saddle to drop it out of self act/feed
very, can set a slow cut and wander off
just looked, ours is dated 1956
archivist: it came with a box of stuff which I havent looked at yet. probably several 500-1000eur worth of collets, chucks etc
good catch anyway, have fun with it
awallin: I don't see threading capability on that lathe
stuste1, there is just its a bit primative
stuste1: it has a gearbox tp the far left in the pic
I see the gearbox to set the feed ranges but I don't see a lead screw nor do I see the lever to engage the thread nor do I see the dial to tell where to engage the feed
you would be able to do some limited threading by never disengaging the feed and reversing the spindle to move the tool back to the front of the work
isn't the screw the slightly higher horizontal bar?
no dial, lever to engage is out of focus on the headstock below the backgear lever
I have threaded on ours but it is a pain
maybe the screw is just blurry enough I can't see the threads on it
heh - I think that's it :)
screw is between the bed
ah I see
oh, so those are both guide rails?
what you see on front are the switch and feed
whatever that means ;)
this is how much I know about lathes: ""
other than the fact that they rotate the work instead of the tool
bottom right of saddle has a lever that switches the motor
oh, I guess with a variable speed feed screw, you wouldn't want to use the same one for threading
yup top bar is slotted to provide drive to saddle
headstock and fine feeds are the best points of it, screw cutting its worst
Looks like a very nice lathe. I like the variable speed on it. Appears in good shape and well taken care of.
ours despite the bed being worn 10-15 thou near the headstock is still solid
lewin1 is now known as lewing
* archivist experiments cutting a cnc helical gear
cutting nylon as the original was tufnel
I so need the 5th axis for this type of work
dunno if ive got my head around the maths yes
Note: When you are playing with a fog machine, pull the battery from the smoke alarms BEFORE hand (but remember to put it back afterwards).
JymmEMC: same rule goes for plasma cutting, pull the battery from the smoke alarm before cutting
Heavily ionized air :P
ah, makes sense
btw, if anyone wants a slightly used government fully capable of bankrupting a devloped country just give a shout
dunno how we have not set the one here off (blowlamps, lead melting, silver soldering and other activities)
is it one of those high voltage mist generators? sits underwater?
Dallur seen Iceland on ebay ?
archivist: yeah but who would be stupid enough to buy it
How it came to be that 30 people bankrupted my country I will never know
What happened to the money I have no idea (it's not here at least)
tomp emails rope to Dallur
I'm leaving, it's the only way now, finishing the boat and sailing away
tomp sends 2nd rope so Dallur can tie off someplace nice
[23:56:05] <Dallur> http://anapologyfromicelanders.blogspot.com/
if anyone had money in Icelandic banks you have my most sensere apology
I did the math, for the country to pay up all the debt the banks have it's something like 650.000 $ US per man, whoman and child in the country, how someone borrowed that and made me responsible is something I will never understand