theorb is now known as theorbtwo
Fox_Muldr is now known as Fox_M|afk
so - it looks like one of the transistors (yes transistor) shorted out in the berger lahr 5 phase stepper drive. we didn't have anything similar so we need to order a few. They are 10a 200v Vec
hope that is all that is wrong.
Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-08-02.txt
whats the purpose of that? to see if you missed anything?
birdman3131|zzzz is now known as Birdman3131
[02:12:10] <L84Supper> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300451741732
what's a fair price for this?
Hi Guys, I have a spindle with a vari-drive that is engaged by a pneumatic motor. The motor is operated right now by air solenoids and by SPEED INCREASE/SPEED DECREASE switch. When the switch is held, the air motor is operating and changing the speed. I will put an encoder on the spindle and I would like to know if EMC can do speed increase/decrease and whether EMC can use encoder feedback to adjust speed. Thanks. Sorry for a
L84Supper, I would say $1,500 will not be too much to pay. I have a 1J Bridgeport with DRO that I will be sellign shortly.
[02:14:39] <L84Supper> http://cgi.ebay.com/BRIGDEPORT-Mill-Series-CNC-No-ReservE-/120599721160?cmd=ViewItem&pt=BI_Mills&hash=item1c144db4c8
this ones a CNC
L84Supper: it looks kind of hard to retrofit if you wan to retrofit, due to compact control in the head. I have a huge cabinet on my mill where I could put all my stuff.
but the price is temptig if you are in the area.
It looks not too much used from the look of the buttons?
controls are a snap
I would think that $1k would be a safe price to pay. Plus R8 tooling is widely available.
I'd emc2 it with our boards
Safe price means, if this machine is a dud, you could always part it out and get $1k out of the parts
unless the quill is cracked or this is not the pics of the actual machine and it's been in the bottom of a lake
I personally do not like those Bridgeports, they kind of look already retrofitted once
I bought my mill for $500 and it has at least $3000 worth of parts. I sold the old control and it paid for the mill
which is what you could also do
Are you watching craigslist also
yeah and a few others, it's a reral slow time for used small cnc machines, I have tons of deals on giant machines
I saw a Matsuura for sale for $1k
not too big, a bit bigger than my BP, maybe 1.5 times bigger
we send most of parts out for production, I just need a few machines for the lab
just for protos
If you look a long time you will find something perfect
yeah I will but now I have actual projects waiting for machines
Sherline is too small for you>
getting to the point of needing to buy new equipment if nothing comes along this week
[02:25:48] <ichudov> http://chicago.craigslist.org/chc/tls/1868176613.html
yes, I saw the Sherline
no idea if this is a good price
I have bigger actuators sitting around here
I'm about to just buy a few 10K rpm quills and slap some mills together
[02:27:46] <ichudov> http://www.google.com/search?q=bridgeport+interact+site:craigslist.org
I would not slap mills together
I have leftover 5um ball screw positioners that will handle 300kg loads
this is far more expensive than buying brand bew at MSRP
I have lots of positioners around, ball screw and linear motor since we build custom machines
I cannot imagine it costing less than 3-4x the brand new cost if you factor in $20/hr
Anyway, I have to run, good luck supper, see ya
[02:30:51] <L84Supper> http://chicago.craigslist.org/wcl/tls/1870477813.html
does it al
geo01005_home is now known as geo01005
L84Supper: that R2E4 is a powerful servo machine and is very easy to retrofit
cradek: looks beefy enough for the aluminum we usually work with
L84Supper: yes but 3500 rpm is all you get out of the spindle
that's just like the machine seb and I retrofitted recently
cradek: whats the spindle motor in this?
2hp on varispeed
wtf - it says R8 - that can't be right
it's surely QC30
I can't tell what's on the table - a tooling plate?
yes R2E4 is the control
same as R2E3 but with crt instead of lcd
replacing with PC and EMC2 anyway
well - it's the model - mill and control both
it's velocity mode NC400 amps
I have all the control parts already
what do thinks it's worth?
they "don't know" if it's operational
how long is a stick?
if you could see it run and it's not totally worn out, it'd be worth something...
otherwise it might be worth a negative amount :-)
but if it's going for $600, you'll come out ahead if you scrap it and can keep the vise
wow, you better decide fast
yeah, I could swap out the quill, how is the factory one held in?
Z ballscrew is machined in the outside of the quill
Z nut spins around the quill itself
ass long as the casting around it is not cracked
it's the top of the knee and underside of the table that wears the most
it's probably a fine machine but I'd expect it to be quite dead, considering the information here
yeah, not concerned about the controls
but really all you need is the drives, tachs, encoders to work
encoder res is 10000/inch
fscking eh... my garage door spring broke and HD doesn't have these ancient POS
rapids 250 ipm XY, 200 Z iirc
travel 18x12x5 + knee
heh at $666
Do they make smallish tackle type pulleys with weight rating like carabiners have?
I've only been finding junk around here or worn out mills for top dollar
I need to stretch the spring and there's no room for largish pulleys
years ago a neighbor of mine nearly lost his hand doing that
it was not pretty
I bet, that's why I was asking for rated pulleys, not the $2 one's.
My ratching nylon tie downs are just 4" too long to be of any use.
$885 too high without a test drive for me
heh went for $1269 for somebody brave
if they went and checked it out, that might be a very great price
could be if they are nearby, it would be +1K to ship here
[02:54:45] <L84Supper> http://cgi.ebay.com/bridge-port-tracer-mill-true-trace-B-360-3D-model-1090-/300451219053?cmd=ViewItem&pt=BI_Mills&hash=item45f449c66d
tracer mill $600
meh, those go for $1 at any auction
more if you don't want to take the hydraulics :-P
Jymmm: there's another thing the size of the mill with 55 gallons of hydraulic fluid in it that runs the useless thing
cradek: O_o that didn't make sense to me
CONDITION: Backlash in X app .070 and Y app 0.25
it's a tracer - not cnc
a quarter inch or?
[02:58:01] <L84Supper> http://cgi.ebay.com/Enco-Vertical-Mill-Milling-Machine-2-Axis-Sargon-DRO-/150472764202?cmd=ViewItem&pt=BI_Mills&hash=item2308e02b2a
I think the only thing it's useful for is copying casting patterns, and barely that
cradek: you mean it duplicates ?
it scans mechanically with that probe thing
you put a tool in it that's shaped like the probe and put a new piece under the tool
then you wish you had your $600 back
Ah, I didn't see the two heads the first time
works that well eh?
actually I've never seen one work
[03:00:17] <L84Supper> http://cgi.ebay.com/Okuma-CNC-Vertical-Machining-Center-MC-4VAE-SPINDLE-/150467543723?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item23089082ab
less the spindle
I doubt any have been run for decades
Heh, replicate the engine block you've always wanted.
30"x 16"x 18" not a bad work area
lots of Sherline mills but with Mach 3
this actually looks pretty solid but small http://chicago.craigslist.org/chc/tls/1869854477.html
fun little project: http://timeguy.com/cradek/01280719622
cradek; i finally got to testing out that radcomp/tolerance on 2.5
oh right, I forgot
yeah definitely made a big difference - velocities are similar compared with 2.4.2 now, but - different like the peaks are levelled off
not sure but I think it should be the same...
ill paste a comparison plot
[04:02:07] <madsci44> http://imagebin.ca/view/WnGvjZ1w.html
[04:02:36] <madsci44> http://imagebin.ca/view/3CacLiy.html
my apologies for the large image size
surprising - something must be different
same gcode same ini?
[04:04:20] <madsci44> http://imagebin.ca/view/h0FJoXn.html
yes exactly same everything - I put both installations in and symlink to switch between the two
oh god is that your cam's idea of a circle??
sorry, that's an aside :-)
looks like 250 has a maxvel of 100 whatevers, but 243 doesn't
lol - i made a circle with a jagged line - its like a triangle wave 0.016" peak to peak, with a period of about 0.060" to experiment with the effect of the tolerance
well without radcomp on, the plots are much more similar
madsci44: well they both look quite acceptable to me - is that good enough for 11pm?
(I'm surprised they're different)
yeah i thought maybe something new in the technique
but im happy with it
[04:10:14] <madsci44> http://imagebin.ca/view/kGytu5tk.html http://imagebin.ca/view/JJBLZFIA.html
those two are both without radcomp, no peak flattening
they're pretty much identical
so the first two plots were both with rad comp on, one was in emc 2.4.3 the other in 2.5.0pre ,, the second two plots were same tolerance setting but no radcomp , again 2.4.3 compared with 2.5.0
either I haven't asked git properly, or there aren't any differences to rad comp between 2.4 and master
I need to find a snack and get to bed - goodnight
hope thats helpful anyways
yes thanks for testing all of it
geo01005_home is now known as geo01005
cradek: nice dominoes
cradek, how many hours do you estimate you spent on the dominoes?
MrSunshine__ is now known as MrSunshine
hi, does anybody have a clue about what happened here:
[08:26:32] <cpresser_> http://pastebin.com/p871mwVp
is it X crahsing and taking emc2 down with it, or just the opposite?
foxtrot_ is now known as foxtrot
cpresser_: looks like X crashing first
but otoh you have RT errors on that machine (maybe a Nvidia or Ati driver?)
i use the nv-driver, not the binary-thing
try vesa for any changes
sould i go for vesa?
ah okay, ill try that out :)
Fox_M|afk is now known as Fox_Muldr
in a 3 jaw lathe chuck, does the snail usually have 1 groove or 3?
and just precisely how sick am I for contemplating making a plywood one?
Depends if you want to make disposable ones
Depends if you want to make disposable ones
actually I'm getting over that. my plywood clamp is getting floppier as it wears
so it's too hard to tell when I should dispose of it
[10:15:43] <bootnecklad> http://www.youtube.com/watch?v=EKL6elkbFy0
is that collet chuck made for one specific diameter?
has anybody extended the axis gui with own code besides pyVCP ?
My problem is that pyVCP does not retain settings over a restart of the gui
and I'd like to keep settings
I'd like to know if there is maybe an example
Is there some documentation on the structure of the python source files that make up axis ?
maximilian_h: only source code
you always seem to have encountered my problems before me :)
by source code you mean the files in ./src/emc/usr_intf/axis/
if you want to extent vcp controls you must look at ./lib/python/pyvcp_widgets.py
Is extending the vcp not too much for a quick hack ? I just want a button have have the button's state saved in one file
like a pyvcp with persistance
and writing a generic pyvcp extention to save button states, well I am unfortunately not that firm with python :(
I think it could be done as quick hack
have you got any ideas ? Maybe a python module I could use for the file to save the state ?
sorry I'm quite busy right now
sorry to have disturbed you, thanks for your help
The_Ball: maybe 4-5 hours including writing the gcode
cradek: was that alu?
a piece of scrap 1/4 thick
they look very nice
That is cool. :)
I had a little trouble generating the spots. you can order dominoes: 0,0 1,0 1,1 2,0 2,1 2,2 3,0 ... but can you directly calculate the spots on the nth domino?
* skunkworks would have bought a cheap set and copied them... ;)
oh I know the patterns - I mean for generating the gcode
oh - heh
cradek: hmm.. should be possible to have a function
alex_joni: I agree :-)
they go up to 6,6 ? right?
they can go much higher
9,9 is common, and there are sometimes even more
the function should be able to calculate any size domino
so they are always above the diagonal.. right?
wonder what the 1e10th domino is
yes triangular including the middle diagonal
then it seems pretty easy to calculate (not by hand though)
I did it iteratively because I could not come up with a closed-form solution
you always have 1+2+3+4+..
how much data can i collect out of emc2 w/o writing anything new, provided that drives/allelse provide that info?
morficmobile: can you ask a more specific question?
how much is accessible from external programs rather than from within emc2? tool#, rpm, load, switches in open/closed position (to check high vs low gear when recording load, to check if coolant on/off when recording load/data)
we have sheets for machinists to write down cut data, they do not do it often enough, so boss wants to write down a lot through the control, for later evaluation for process improvement
if your external program is a hal component, you could hook up those kinds of things to it using hal
cradek: you can do it, but it's a bit complicated
say m is the number
to get something like spindle load, you'd need to get that into the machine somehow, perhaps with an adc
we first calculate the first number of dots (n)
n = (-1 + sqrt(1+8*m))/2
cradek: yes, anything that emc2 has access to, i first have to get load into emc2
you take only the int part of n, or round down
so far i only talked about reacting to load within emc2, this new data collection would mean some program collecting and storing the data
then for the second numer: m-(n(n+1)/2)
I think the 1e10th domino would be in a double-141422 set
at least I think so..
I wonder how you could play those..
"that's a 141420 tile", "no, clearly it's a 141422"
how did you come up with your answer?
see formula above
I mean the formula
started from n(n+1)/2
that's the sum for consecutive numbers (triangle diagonal) 1+2+3+4..
so if n(n+1)/2 = m (the one we're looking for) -> n^2 + n - 2m = 0
that has n = ( -B +- SQRT( B^2 - 4AC ) ) / 2A
in our case since we want positive numbers we only care for the + solution
so n = (-1 + sqrt(1 - 8*m))/2
but you only get an integer result if m is on the diagonal
else n is the column, and we need to substract n*(n+1)/2 from m to get the row too
theorb is now known as theorbtwo
it's a bit hard to explain clearly on irc ;)
you are more clever than I am :-)
I doubt that
if im going to use spdt bump-levers as limit switches, which ones should i use, and is that the best solution
we have in Poland useless hostings services, can you recommend me some good europe wide ?
micges: i am quite happy with this one: http://www.server4you.net/
its running my vserver for almost 5years without one error
what's up time?
my hoster had up time 40% in last month
ok thanks, I'll take a look
Hey Micges, what kind of traffic, just some GB or do you want unlimited traffic, vserver or a dedicated machine ?
hi cradek :-)
few GB vserver
pics of yesterday's project at http://timeguy.com/
nice project chris
did you use a ball-end mill for the dots?
no, they are flat on the bottom
cradek: I like the dominoes
1/8 2 flute end mill
did you helix down or just plunge?
nice & simple :-)
the dominoes are slightly small at 1.25 long, it's a "travel" set
did you make the line between the two number-areas with a smaller endmill? three tools in the first setup, then the drill-mill for chamfering in the next two setups?
cradek: easy to bring on the plane I assume?? :D
seb: the center line and outside chamfer was done with one of those 90 degree pointy drill-mills
so 3 tools altogether
oh ok, it looked like it had a flat bottom in the first and second pics but i now see the V bottom in the fourth pic
the tool does make a tiny flat
why not chamfer the first side as part of the first setup?
i haven't tried my drill-mill yet, but hope to this week some night
seb: because of height control problems. the scrap I used was very long and thin, and wasn't held down that great. I was afraid the chamfers would not all match.
work-holding is always^Woften tricky & interesting :-)
but yeah, if I was to make more, I'd find a way to hold it down better (mostly by using a more square piece of stock), and save a lot of that work
2/2 people who came in the shop while I was cutting this told me I was crazy for cutting .005 from the table surface
would you use a drill-mill for engraving (for example) text on a control panel? Or would you use a small end-mill or a carbide burr or something else?
.005 off the table sounds ok to me, if you touched off on the table instead of on the work piece
I'd use a 1/4 drill-mill or a 1/8 pcb engraving V tool if I wanted it small
spinning as fast as your spindle will go?
yes, or faster :-)
i'll be doing my first text engraving soon, just writing some dimensions & notes on a fixture plate :-)
for that, a 1/4 mill-drill is fine, since the lettering doesn't have to be particularly small
seb: I use 60 degree single flute engraving tools from Onsrud like these http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=613&PARTPG=N2DRVSH&PMT4NO=90851092&PMITEM=05479084&PMCTLG=00&PMT4TP=*LTIP
I use these for small engraving: http://www.thinktink.com/stack/volumes/voli/store/mechmill.htm
preferably in a high speed spindle: http://timeguy.com/cradek-files/emc/stethem-spindle-on-max.jpg
here is where I tried to engrave my vise with a 3/4" end mill http://i47.photobucket.com/albums/f163/johnplctech/Machine%20Shop/HPIM0598.jpg
engraving rulez ?
I'm over it now I did that a couple of years ago :)
@micges: I can recommend http://www.vsell.de.
They only offer vservers, but they are really at a good price. I am using them for anything but big websites and email servers. Price is 6 EUR per month
JT-Work: ya, seen that done MANY times... (hitting the vice)
maximilian_h: many thnaks
I've been using them since last year
silly people changing work coordinates or not testing a program alteration before they go 100% :P
so far no problems or downtimes
yes hitting a vise is very common -- but hitting one's own vise paid for out of one's own pocket is very uncommon
oh is it now...
@micges: Glad to be able to help
I used to work for a guy that trusted all of his programs. ran at 100% EVERY time.
said 'why waste time' what a fool he was.
[16:30:22] <Birdman3131> http://blog.makezine.com/archive/2010/07/125-piece_puzzle_in_6_different_met.html
This been mentioned here before?
broke so many tools I don't know how he even made money!
cradek: nice domino set :)
geo01005_home is now known as geo01005
in this picture does B6 indicate the mounting flange? http://img.auctiva.com/imgdata/1/1/5/7/0/3/5/webimg/280242949_tp.jpg
I don't think so. I think there is only C and D flange styles
it's a metric motor not a nema
I don't see it anywhere.
this is a cool site! http://www.engineeringmotion.com/videos/load/recent
I love the dominoes project :) I've been contemplating almost exactly that method (cutting them into islands from a larger piece to speed up a job for similarly shaped parts i have to do
cradek; I ran that plot again today and now everything is identical between versions. I tried also to intentionally ilmit the feedrate and got identical to the other pattern so im confused now - something was causing the feedrate to limit when radcomp on? maybe a register?
I was donated this the other day. 1Hp Leeson DC motor with PWM controller http://bayimg.com/gAodoaAcb
madsci44: the cut-almost-through-then-smack-with-hammer method works great - I use it all the time
any idea what I could use it for? the speed is controlled with an 'analog' trim pot
how could I digitize it so EMC can control it?
put an opto where the pot is
thats good to know - i was worried how they might lift when only supported by the thin section - I figured just planning the order of what cuts close in on bottom first would solve that
they usually don't - sometimes you have to fiddle with the thickness until it works right
I had to remake the 3,3 domino because it tore free and got gouged up - no big deal
if the workpiece is thin and not clamped well enough, it'll lift enough by cutter pull to cut all the way through
ill be trying it in 1" steel plate
let me know how it works - I always use aluminum.
new pocket.py slightly divergenz in drawing to g-code on spiral mode http://www.pictureupload.de/originals/pictures/020810201332_pocket_v1_c.png
some intrested videos if not already been seen.. http://www.youtube.com/watch?v=YDKuNYDzXl8
Since wednesday the 5v PSU in my CNC machine, the monitor PSU for my new CNC machine and my cable TV box have all died. This is beginning to look like more than coincidence.
alex_joni: Fsck me *sigh* http://cgi.ebay.com/Nikon-D70-Digital-SLR-Camera-18-70mm-Lens-Kit-BOX-/330456434232?cmd=ViewItem&pt=Digital_Cameras&hash=item4cf0bd0638
andypugh: Ouch, dirty mains?
Could be, but I have never had any trouble in the past
andypugh: new load in the house? washer, dryer, frig, AC, heater, hair dryer, etc?
No, nothing new at all.
you dont have a logging DVM do you?
I was going to suggest logging for brown outs spikes
sounds like a grounding/earth loop problem
alex_joni: That was the camera that got stolen. The one I paid like $1500+ accessoeries forr
The very same one, or just similar?
andypugh: Same model Nikon D70 Kit
I'm sure the price will go up
6d to go
alex_joni: lots of them up there like that
weather today :/
[19:29:26] <alex_joni> http://www.accuweather.com/en-us/ro/timis/timisoara/details.aspx
[19:30:12] <Jymmm> http://www.google.com/search?q=weather+san+jose+ca
nice and cool
[19:34:40] <cradek> http://www.accuweather.com/en-us/us/ne/lincoln/quick-look.aspx
Lincoln must border Romania =)
cradek: RealFeel 107F - FSCK ME, you poor bastard!
* Jymmm HATES humidity
it's fine, we're used to it
[19:38:52] <andypugh> http://www.accuweather.com/ukie/index-forecast.asp?postalcode=basildon&Submit1=GO%21
Cool for what we laughingly call "summer"
cradek: what do you mean an opto ?
there no bot in here?
!weather toronto ontario
elmo40: no bots, we do it the hard way.. google
[21:14:07] <skunkworks_> http://www.machsupport.com/forum/index.php/topic,15502.msg104086.html#msg104086
skunkworks_ is tricking us to the dark side
don't click on it!! ;)
doesn't open here anyways
heh - there is a joke in there somewhere... ;)
yes - I must have taken the forum down.
Why do Mach control panels look like they have been run through the Geocities filter? ( http://wonder-tonic.com/geocitiesizer/index.php
shush, they say it's a feature. don't make fun of them.
Anyway <moan> I paid £15 for an Aerial lead (the choice of shop is limited at 9pm) and found that the previous owners took the power supply for the masthead amplifier with them when they moved out, so I still have no TV.
Oh, and cutting a hole in the back of the TV unit to access the aerial box, I drilled straight into the Cable TV connector....
Which is something else the so-called cable "engineer" might have to fix.
skunkworks_: it's still loading - the title is there now
well - that is going to be anticlimatic.
"It's been a long time since Turn recieved any attention in the past years. At least threading was fixed, there is an improved screen set if one wishes to use it, and hopefully LazyTurn will reach an anticipated level this year. Other than that there has been Zip!"
[21:34:50] <alex_joni> http://wonder-tonic.com/geocitiesizer/content.php?theme=3&music=11&url=timeguy.com
<- that's funny
as if my site didn't look dated enough already
www.bodgesoc.org really and truly hasn't been changed since 1996. It has moved server a few times, but has not been changed.
No, I tell a lie, I added the eclipse trip link in 1999.
cradek: it doesn't ..
andypugh: you don't happen to remember where you stayed here: http://www.bodgesoc.org/eclipse/12.html
andypugh: anyways, it was quite a fun read, you should come back for a visit, a LOT has changed in the past 11 years
geo01005_home is now known as geo01005
So a Romanian woman I know insists. She seemed positively hurt that I felt more comfortable in Hungary
well.. that's debateable
And the Zagreb Hell's angels emailed me a few years back sounding a bit miffed <yikes>
hungary had a couple years head start, and they are still a couple years ahead
but I think you find more people speaking english in romania.. so that might balance things out
so.. happen to know where you stayed?
I think it was mainly that Szeged was a university town, on a lovely summer evening, with an eclipse imminent and a real party atmosphere. It felt like Edinburgh during the Festival, but with prettier girls.
I can try to find out.
it's not _that_ important
reminded me of a place called Minish..
if it doesn't ring a bell, it's probably somewhere else and not that important
The route link says Nadlac
that's near the border then
Yes, I think it was
cradek: I don't know if you replied or not. but you mentioned something about an 'opto' that I could use to digitally control the PWM for the motor. What is that?
I assume he meant an opto-isolator?
Fox_Muldr is now known as Fox_M|afk