JT-Hardinge: A36? that really crappy material? used for safe plates cause it's fun to drill
theorb is now known as theorbtwo
JT-Hardinge: A36 tubing? doesn't sound fun either, if it's anything like the A36 we used in my last job
yea, A36 square tube 2 x 2 1/4
dirty nasty stuff
I consider it trash metal
Jymmm: all i know is, you need patience when drilling it, and all we used at my last place was cobalt drills
[02:48:11] <L84Supper> http://www.theleeco.com/EFSWEB2.NSF/MDG!OpenView
anyone know of other suppliers of these micro dispensing valves?
I think JT is just talking about mild steel ... 36,000 psi yield strength... a lot of angle iron, tubing, channel steel is A36. It is very easy to weld, machine, etc... Very handy stuff.
[02:49:59] <Dave911> http://en.wikipedia.org/wiki/A36_steel
Jymmm: drilling it just creates so much friction, it smeares and your burn drill after drill
it's hard ?
oh, too soft?
don't think so, i filed on it, just gummy i guess, reminds me of drilling lead when you got too much rpm, but you keep it down and it drills like any other material
don't think it was work hardening, never been a problem drilling at a spot where someone toasted a drill before
assembly used to do a lot of hand drilling from where engineering forgot holes for mounting brackets, and you know how most people drill with a variable speed hand drill....
I never work metal, was just curious.
so if i have a 10mm pitch on my ball screw and 2048pulse/rev, i get 10/25.4/2048" as inch/pulse revolution? it's just what SWPadnos already confirmed in April, just back then we did the sample math with 5TPI ballscrews, so just a hair under .0002" resolution?
there it is, "2500 line/rev is 10000 count/rev", i knew i had a 4x in mind there somewhere
i see my reply to pcw where ^ came from, but not where he says this (looking through logs)
? slow fingers?
trying to sound like a weirdo off the simpsons
ah, weirdo, mkay
not much, surviving the last hour of work i guess :)
just got back from the movies
where is a good place to get 500watt-1000watt servos?
magmotor are good for stuff
though retail on that size stuff is a bit expensive
ok, this is cool http://lazarenko.me/news/linux-monument-unveiled
[06:50:37] <Valen> http://www.magmotor.com/
what does the 4pole and 8pole neodymium mean?
number of magnetic poles inside the motoy
accurs to me that quadrature would have been the best term to grep in logs :/
generally more poles = more torque but slower
I'm not seeing prices...
[06:55:27] <Valen> http://www.robotmarketplace.com/products/MAG-S28-400.html
gives you an idea
those one are set for low voltage
they are cheap for their size
if your getting that from the RMP site thats a peak figure
we use them in combat robots
you got a big power supply right?
(we were thinking of using them, I was going to have a bank of lead acids to supply peak loads ;->)
thats perfect for a spindle
you don't want a 32Kw spindle?
bit slow isnt it?
twice that would be nice
I just want something for a mill for the X,Y, and Z
1000RPM is almost perfect
how big is the mill?
for direct coupling
however big I make it
[07:01:13] <Valen> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?JakeAndRussells
made of win
I was thinking about 2' x 2' of X and Y movement
yeah then scooter motors would do it easily I'd suggest
(and at a fraction of the price)
just need to get encoders
how much are both?
oh, I would prefer rotary encoders
encoders I've seen for $70 or so i believe
yeah thats what I'd suggest
motors you can probably find at council cleanups ;->
the kiddy scooters/carts etc
we got ours for ~$80 i think
we got 400W ones
[07:05:55] <Valen> http://www.oatleyelectronics.com/
I love RAID now
any paticular reason?
had a hard drive fail in RAID1 that I was using for boot
in my server
thats when its good
did you notice?
got the replacement drive today and its rebuilding the RAID
i've had them fail and not noticed for a few months
donno when it failed
perhaps a month
i only use software raid
if your mbo dies and your using fakeraid your stuffed
you wont get your data back off unless you basically get the same mbo
[07:11:34] <WalterN> http://tiwake.com/img_0063_small.jpg
WalterN: too bad there isn't a way to make shorter Sata cables
they really ruin a nice setup.
don't use mobo software raid, linux raid is nice..
any shorter and I wouldent be able to get the drives out.. heh
how much heat comes out of the perforation?
thought more would have.. oh well
why the vga cable? this isn't a NAS ?
its a web server too
and.. erm... email isnt quite working yet
ah, trouble shooting. what OS?
you mean you don't ssh into it? ;)
neh, its sitting right next to me
Valen: so where do you get those scooter motors?
[07:20:14] <Valen> http://www.oatleyelectronics.com/
I prefer ssh into it
that just says motor, not servos though
mainly because xterm is higher resolution
its not a servo
you get the motor and add an encoder to it
wouldent a servo be more precise?
they are DC brushless motors?
what do you think a servo is?
WalterN: I use this: http://blog.openmediavault.org/
Debian Lenny. Add what you want. VERY stable.
Valen: I have a few treadmill motors, approx 1.5Hp They are brushless DC motors. They could be made into a servo?
brushless is hard to make into servo
dont servos handle PWM themselves?
that came out funny
you need the encoder to be linked to the brushless driver
so it knows what the commutation state of the motor is
so it isn't as simple as putting an encoder onto the shaft, eh? ;)
(the sensorless ones work because the rotation induces a voltage in the switched off coil and they use that to work out where it is)
not for brushless no
ok, what about braking? or the 'holding' strength? what tells the motor to stop spinning when I apply a force to it?
the force you apply to it?
as in an axis drive. I don't want Y to move when I make a straight line in X
thats EMC's job
based on the encoder?
ok, it tells the driver where to go :-P
it will get pushed off, the encoder moves emc sees the error, the PID loop acts on it
the feedback is given by the encoder? and EMC recalculates direction and speed?
but brushless is more tricky then brushed because of unknown commutation state?
I want to get this working, picked up 3 powered treadmills for free. 1.5Hp Leeson motors. I guess it will take a few more steps to make it work.
maybe I should look into scooter motors ;)
now, what about having feedback on a stepper? is it more complicated then worth the effort?
it'll only tell you if you have ferror
RAID1 is now done, woo
now the other one can die now
WalterN: what mb is used?
erm, lol... s/now//g
Valen: but it won't make any corrections?
psha: intel atom made by supermidro
WalterN: atom 330?
one of the newer ones
on nm10 chipset?
Valen: you know of any links to help me turn this brushless DC motor into a servo?
seem so since i don't see any cooler on board
it wont quite work without a fan
need one case fan
my intel d510mo works fine without fans
but i have case with perforations on both sides so there is some air flow
small perforations though
but it needs additional heatsink on chipset
Valen: I'm eyeing http://www.dmm-tech.com/Pricing.html
the third one down from the top
"Dyn-2 Kit - High Torque AC Servo System"
looks like it has an incoder as well
WalterN: have you tested your board latencies?
my server motherboard?
or it's just home server?
its just a home hobby server
not too many ISP options here in montana ;)
my 'small' home server is serving as emc testbed now so :) so was curious if you have tested yours
how do you test?
I wouldent use this anyway
loaded it from livecd (from flash)
so 'home server' stuff is left untouched
psha: what do you think of that servo?
nice board for noiseless home server :)
i know only about servers :)
First and only wokring stepper motor i've ever seen is living in my home less then one month :)
psha: Know about Rackable Systems (tm) ?
Jymmm: what do you think about that servo?
WalterN: Lousy for a kids name.
Jymmm: not enought to say that i know them very well :)
Jymmm: mostly about 'collected-from-ash/trash' systems since at work it's common task to rescue some not new stuff, like ~10yrs old computation cluster
elmo40: making a brushless ESC is not easy
encoders on steppers make no corrections
its just how EMC works
WalterN: Those are ac servo's they might not work as well at low RPM's
compare the cont and peak torques against the mags
other than that they are nifty
no brushes to wear out
Valen: I coulent really find any other information on them though
on the magmotors?
they have big spec sheets
[08:23:15] <WalterN> http://www.dmm-tech.com/sitebuilder/images/7.2Nm-1Axis-443x335.jpg
[08:24:06] <Valen> http://www.magmotor.com/brushed/brushed.html
click on the "stack"
though it says to the right of that peak and cont stall torques
thats not right
the link I gave says its 1000RPM
maybe I should get one to play around with
funny, last thing i recall seeing was 1000rpm, now i am home and i see 1000rpm again
mag or ac?
<WalterN> I just want something for a mill for the X,Y, and Z
<WalterN> 1000RPM is almost perfect
<WalterN> the link I gave says its 1000RPM
but for someone who just got home from night shift, that's funny :P
now that I'm thinking about it
when I left the mill at the end of the day, it was set at 1,000RPM
third picture down
with a 5 tread/inch lead screw, rapid movements would be about what I want
slightly on the slow side
but, a different lead screw could be chosen
I'd go for more RPM rather than that
and do gear reduction?
bbl picking missus up
then what would you do? have uber fast rapid movements and low torque?
if you have a coarser thread you are doing the same thing
however electric motors generally put out more power at higher RPM
so keep the fine thread and use the high speed motor
Hello All, Could someone let me know what the Equivilent of a G79 (Cycle Start Code) is in EMC please? I am trying to build a post-processor.
[10:08:07] <micges_work> http://www.linuxcnc.org/docview/html//gcode_main.html#sub:G81-to-G89:
man. people really need to not edit the wikipedia page if they don't know what they're talking about
SWPadnos: check dev channel
haven't fully digested it yet
3 patches: awk script, small init/copy code, and huge s/halui_data/halui_new/ replacement
others are nose
yeah, the awk thing makes me queasy just on principle :)
hm anyone tried to breed emc with some computer-vision systems?
there have been some discussions on the topic, both for positioning (mainly edge or zero finding) and for measurement (ie, part scanning)
ml? or somewhere else?
oh, mailing list
hmmm. some on the mailing list I think (recent even), some in person at CNC workshop or the like, etc
i'll search mailing list then
psha, and the odd bit of natter in here
I have been thinking along camera lines due to a the cutter shape I want to align
I've to implement only positioning
but core problem is common - most of CV cameras are windows-oriented...
for some of them there are linux drivers though
I have had a webcam running while emc is running
heh, webcam won't help me :(
yup quality was rubbish
i need 5um precision
well lenses and calibration are going to be fun
many/most cameras will work with Linux, I'm sure. openCV may be a good place to start writing image analysis software
opencv project seem to be good start point
too late :)
and openCV will have a CUDA-based version some time next year (first or second quarter, if I remember correctly)
checkout telecentric lenses too
or use a longer focal length :)
it seem i have to use two cameras
first for rought positioning and second for preciese
I did a camera system for laser welding position, but it was only accurate to 0.001"
rough positioning could be done by a human, or by using the encoders (or whatever other feedback you have)
or you can use a zoom lens with stops set at two focal lengths (though focus could be an issue)
SWPadnos: question is if two fixed lens would be cheaper then one zoom :)
two whole cameras actually, since you can't swap lenses on the fly (without something very very very expensive)
atmega: what hw are you using?
unless you're just talking about putting a teleconverter or other additional element in front of the lens
SWPadnos: i understand that changing lens on camera insude workarea of mechanical cutter is not best idea :)
and also not all that easy, since they generally have a bayonet or screw mount
regardless of cutting fluid/swarf flying
so i'll look for zoom cameras...
or straightness of the optical paths
but at first i'll try to do it with webcam on my wife's notebook )
yeah, the actual lens(es) are a minor issue compared to actually finding stuff in the frame and getting position information to EMC
opencv seem to be right solution for this
but #^&#@ they have horrible examples
i've downloaded one
seems to be, though I haven't gotten anything to work with it yet
and was struggling with loading image
img=cvLoadImage( "03.jpg ", CV_LOAD_IMAGE_UNCHANGED );
this code was not working
I'm using Harpia, which is a graphical program generator, and that's probably half my problem
the other half is that I don't know what I'm doing :)
whitespace after filename is not that easy to notice...
wonder if that failure is OS specific
example file is named 3.jpg
it would work on Linux if you actually had a file called "03.jpg\ "
and this is not os specific :)
(spaces are legal :) )
yes, but it might work with 03.jpg no space in win32
no, the 0 would screw it up on Windows too
the 0 though... that's just not happening
at a first glance opencv has everything i need
at first glance, many OpenSource projects have everything you need
atmega: and at second it's always possible to add parts not needed :)
emc is flawed in that it works, and is actually useful. It sets unrealistic expectations.
at least opecv is used for far more difficult tasks then simple marker tracking
SWPadnos: are halui patches ok?
no idea, I've been doing other things :)
at least many signals at once are handled properly
knock where you'll have time to look trough them
ok. that should be some time in November
it seem that i've exceeded my quota for patches :)
cheapest 4th axis in the world http://imagebin.ca/view/wg8wbifr.html
I like it... will do the same!
but 1.8deg / step isn't very high resolution...
would suggest a vacuum cleaner...
but I need to get a tiny bit like that.
yes, that too!
I need to make a box around mine. the house smells like wet saw dust when I am done :-/
0.9deg on half step
the sticker on my motor says 1.8, will it still do half step?
yep, nearly all drivers do half-step at least. most do microsteps these days but that's not so reliable for fine positioning
half step is full current in both coils, so it's dependable
I'm making a 9:1 pulley next, so I have 0.1deg res
and then I'll use that to mill a wormgear, to give 0.01deg etc etc etc
luckily these pulleys I'm milling first have 8 teeth, which divides nicely into 200
I suppose I ought to fix up the 'shop' vac (plastic aquavac)
I have half a box round mine, so I'm working towards an integral "dust management system"
a cold air blower for cooling and blowing the dust under the table, where a big funnel will collect it in a bucket
this is supposed to be a metalwork machine one day, but I suppose I should start again for that
ya, mine will be for wood too. need to slowly make one for metal. stronger rails, variable speed spindle, steel framing.
anyone know the phoenix part number for the plug connector on mesa 7i33T?
the description says 3.5mm tho i measure 1.25" over 10 pins
15 minutes of internet fame coming right up for emc2 user hugomatic. http://blog.makezine.com/archive/2010/09/very_very_serious_tic-tac-toe_game.html
maybe a little more then 15min? http://machinetouch.appspot.com/tictactoe.py
what a waste of billet & bronze
I should do a chess set now I've got 4 axises
not phoenix contact , similar from cixi rijing http://en.cxrj.com.cn/products_detail/&productId=6e6bf8d9-40e9-43fe-b4f2-01f29a7362da&comp_stats=comp-FrontProducts_list01-1277178005206.html
do they make ball screws that are 10threads/inch and about 1" in diameter?
actually, I think thats a standard size, at least for a normal thread
I've never seen ballscrews with a pitch that narrow. do they have any advantages over acme at that angle?
never seen ballscews that narrow of pitch either
but, havent exactly gone looking, thought I would ask
the balls would have to less than the pitch, for a start. I've been messing about designing a ballnut that uses M8 stud, the balls have to be 1.0mm or 1.2mm
the omni-turn lathe I'm fairly sure uses 5thread/inch
yeah 5mm pitch they are common
the most common I'd say
the imperial ones I've seen have been twin helix 1/2" pitch
MattyMatt: I've been thinking about getting http://www.dmm-tech.com/Pricing.html
third picture down
1000 RPM is perfect for a direct coupling
but cant really find specs on it
what more do you want?
2.9 Nm(409 Oz-in)
weak motor for direct coupling.
for metal, anyways.
how do you turn a torque into a linear force?
fine pitch leadscrew :) I don't use m8 because it's cheap, I use it because it's GOOD >:)
my Y axis is godawful slow. I've just been drooling over second hand ballscrews
with steppers you've got all the torque you need already. just gimme some SPEED
[17:05:50] <MattyMatt> http://cgi.ebay.com/VEXTA-Stepping-Stepper-Motor-PK569AUHA-/200507166700
only 230ozin, but a 5 phase can do 3000rpm unloaded
elmo40: lets say its connected to a 1" diameter ball screw thats 5thread/inch... what kind of linear force is that?
does no one else have this issue with EMC 10.04? I open Axis, run a part. Complete the machining. Try to edit the file and I get an error dealing with 'read only file system'. I click on Shutdown (in the top right corner) and nothing happens. I can't open firefox, console, nothing. This will occur every time after I machine a part. Seems like Axis (or something) is locking the file system.
and the downside of 5 phase -> http://cgi.ebay.com/SUPER-VEXTA-5-PHASE-STEPPER-STEPPING-DRIVER-UDK5114NA-/360297166553
MattyMatt: price? that the only downside?
afaik there are no other downsides
they are 500 full steps/rev, they have more torque for the size, and can run much faster than 2 phase steppers
the motors are usually similar price, it's the drivers that cost
nice selection of servo motors...
walter: force= (torque*2*PI*Eff)/pitch
the eff of ballscrews are around .9
what rpm would you rigid tap a 1/4-20 into A36 1/4" thick?
watch units - make sure your force and pitch are the same distance (both inches or foot)
JT-Hardinge: whats A36?
structural steel like square tube
it's a very very small piece of paper >:)
is it mild steel?
none of them
so - example. Our machine has 40ft-lbs of torque at the ball screw. The pitch is .3333in. So 40ft-lb = 480in-lbs. then (480in-lbs*2*3.1415*.9)/.333=8151lbs of force.
No, A36 is on Chinesium Bingo... Bango
with coolant flooding?
it might be like a 1008
you can go fairly fast then
fairly = ?
I'd do 500 though :P
it is my first rigid tapping experience so I'll start maybe 300 and see
if you go really fast with a dull tap the results can be fun :)
JT-Hardinge: Make sure you use protection, we wouldn't want any baby JT-Hardinge's running around.
skunkworks: thanks much
JT-Hardinge: Do you have any scrap to test on ?
machining is full of knob gags. greasy shafts and so forth
Paragon39_ is now known as Paragon39
plenty of scrap
WalterN: brand new electro coated spiral point taps :)
mm, a spinning broach
skunkworks: so that motor that I linked to would be 28-29lbs of force? :/
heh, I get to broach some holes next week for the first time
and 5thread/inch ballscrew
JT-Hardinge: Maybe you can play with scrap and see what speed works well?
I get 722lbs
409in-oz is 25.6in-lbs - so (25.6*2*3.1415*.9)/.2 = 720lbs of force
thats not bad, considering what it will be used for
is that rating peak though?
peak is over twice that
oh - ok - that seems like what you where looking for then - right?
its just for an engraving machine I want to make :)
I should order one to play around with
I can engrave anything softer than that with my 60 oz in steppers :)
something like this... http://www.artcotools.com/compete-nsk-e3000-series-spindle-system-60000-rpm-pr-16758.html
WalterN: I don't think those servos will work with emc.
oh you just like spending money :) my spindle does 36krpm for under $40
skunkworks: thats fine too..
MattyMatt: we've had this conversation before, do you remember how it went?
Jymmm: I cut air first then go for broke
I had a neat idea for a cheap upgrade too. proxxon steel collet set
yea! my new vise is here
and dam it is heavy
skunkworks: I'm mostly after the servos.. though I bet if I asked nicely they would probably sell just the servo...
you are looking at the ac servo?
finding a drive to work with it may be an issue (after the fact)
are AC servos not as popular?
very popular. but they are usually bought as a pair - drive and servo
micges, hi, in case youve been wondering what i was up to, http://pleasanthacking.com/2010/09/29/gaia-system/
that drive has an analog input for speed setting, 0-10V
where did you find that?
here's the manual: http://www.nsk-nakanishi.co.jp/en/industrial/download/pdf/e3000_en.pdf
is it mag+dir?
I don't know that it can reverse
you can read that far :)
wait - what are we talkinga bout?
I was talking about http://www.dmm-tech.com/Pricing.html
- third picture down
jepler: Did you write the pluto_stepper and pluto_servo comps? A chap on the forum is asking if it is possible to run one of each if you have two parallel ports. I have guessed at "yes", but would like to be sure before the guy pays 3x the cost of a board for postage.
MattyMatt: Going into the Windmill business?
andypugh: I have never done that, so I can't give a positive answer.
just into the cog & pulley trade :) and chess pieces
MattyMatt: The next picture thumbnail frightened me, the crop makes it look like you managed to sever two digits.
not my digits
rooks: cool name :D
I gotta stop posting next to self-mutilators. that's happened before
jepler: What would be your guess?
[17:58:34] <skunkworks> http://media.unpythonic.net/emergent-files/sandbox/pluto_servo.html
andypugh: I'd tell this person to buy a mesa board instead.
look at PC interface
I agree with jepler though.
Ah, yes, that seems to indicate that one-per-baord is doable. Looking at the price, though, a single 7i43 looks like a much better idea.
anyway, in principle the pluto_servo and pluto_step hal components can both be loaded at the same time, so that would seem to furnish a way around the "one board only" limitation.
one-per-port I mena
but the pluto hardware is junk compared to anything coming out of mesa, and the emc2 hostmot2 drivers are also better maintained
skunkworks, ok, that drive can also use analog, step/dir, or CW/CCW pulsing for input
well - there you go!
The Mesa drivers are partly maintained by an incompetent, though. :-)
it has an absolute encoder - does it have provisions for quadature out?
Has anyone tried the dmm-tech kits? The price looks very competitive.
well that went nicely
WalterN: if your in the USA I get OEM pricing on Panasonic servos and drives
[18:23:18] <L84Supper> http://cgi.ebay.com/Large-Belt-Driven-Positioner-70-Travel-Size-34-Mount-/310223046079?pt=LH_DefaultDomain_0&hash=item483abc05bf
maybe my next mini-lathe will start here
not much torque on those guys
more for speed
[18:29:16] <L84Supper> http://www.theleeco.com/EFSWEB2.NSF/MDG!OpenView
anyone know of other suppliers of these micro dispensing valves?
looking for at least 0.25msec on/off times, ~100 micron orifice
Have you considered fuel-injectors?
there seems to be a void between inkjet heads and micro valves for speed and drop size
andypugh: yes, I'm trying to track some down that are only a few mm in dia
the other issues have been finding specs, most just seem to be replacements for small auto engines
[18:35:12] <andypugh> http://fiche.worldofpowersports.com/wps/Yamaha_OEM/YamahaMC.asp?Type=13&A=456&B=12
(Don't pay that price, they all get crashed at less than 10k miles, go to a bike breaker or eBay)
I need about 20k-30k of them :)
JT-Hardinge: really? is there a list of motors you have available?
all the industrial ones http://industrial.panasonic.com/ww/i_e/25000/fa_pro_acs_e/fa_pro_acs_e.html
L84Supper: At that quantity I think you get to tell the manufacturer what spec you want.
andypugh: maybe, the auto guys get orders in the millions
I'd like to find something <10mm dia
3-5mm would be ideal
SWPadnos: where did you find that?
What's the application?
in the manual
JT-Hardinge: how does pricing work?
In the spec, the manual doesn't mention it :-)
JP3 takes analogue or pulse/dir. No mention of encoder output.
andypugh: fluid deposition for viscosities higher and with larger drop volumes than what's used in inkjets
I wonder if you could use a system like on ye olde worlde dotte matrix printers, where the solenoids were quite big, but operated converging wires.
I suspect that the industrial paint matrix marker systems have solved the problem?
andypugh: the only drawback to the valves they use are the only ~1000 firing speed
I wonder if that is because of the viscosity of the material being valved?
what I was wondering, but even with water they are 1000 hz
[18:52:38] <andypugh> http://news.thomasnet.com/fullstory/Solenoid-Valve-has-ultra-miniature-design-467124
Ah, no, that's 1mS too
yeah, those are the ones by Lee Co.
micro fuel injector or DIY seems to be the way
WalterN: I have to get a quote from my distributer
I usually let them spec the drive out cause if they are wrong they take it back :)
JT-Hardinge: is there an easy way to find one that is 500-800watts and in the 1,000-2,000 RPM range?
L84Supper: Aye, I was thinking you might have to just design one. (Actually, you could design the whole matrix in a block, probably better)
separate for the magnetics probably
[18:57:13] <L84Supper> http://etd.lsu.edu/docs/available/etd-01292004-141532/unrestricted/Morris_thesis.pdf
maybe like he did ;)
A serious suggestion would be to track him down and pay him to design it for you.
he was trying to atomize the fluid but if your media is on 1mm from the nozzle it should work as long as the pressure doesn't turn the fluid into a saw
sp only/on 1mm
Written in 2004 for a masters thesis. He/she is probably still looking for a job...
ive seen no mention of valves in that article yet
he was designing fuel injectors
those are beefy servos
more here http://industrial.panasonic.com/ww/i_e/25000/fa_pro_acs_e/fa_pro_acs_e/a4.html
what does low inertia mean?
* JT-Hardinge heads to the other shop now
any body in UK want a nice project. http://cgi.ebay.co.uk/Cnc-lathe-hardinge-turning-milling-spares-repairs-/200523535976?pt=UK_Home_Garden_PowerTools_SM&hash=item2eb0225668
Spotted that, and yes I do want it, but don't have the space
andypugh: Replace your bed with a hamock, then you'll have room
Ye think I ain't already sleeping in a hammock, me hearty?
prob find away to sleep in machine guarding
its been on there for quite some time that hnc now
roberth_, any ideas how many axis ?
2x X and Z
o, and a top slide parting
sitting on top of spindle
thats a air motor driven normaly so not a motor axis, but could be changed i guess
I am more tempted to offer an EMC2 retrofit.
yea we said tht
we said, maybe he wants to buy out Fanuc6 spares from our retros
They would be very close to me, were it not for the thames. http://maps.google.co.uk/maps?f=q&source=s_q&hl=en&geocode=FTIXEwMdqLQHACljY-rWbsTYRzEpbJAn_vyFDg%3BFbuhEAMdSnEMACnvJdazLirZRzEQz8zMyIURCg&q=SS13+1RT+to+minster,+kent&sll=53.800651,-4.064941&sspn=20.121063,47.285156&ie=UTF8&ll=51.438601,0.561676&spn=0.330434,0.738831&t=h&z=11&saddr=SS13+1RT&daddr=minster,+kent
we have a HNC , but it sits out in other shed with other machines that we no longer use.. since we got the CHNC we never used it.
ya need a boat lol
i am other side of cambridge
Some friends of mine lived just north of Cambridge, they raced motorbikes. Called themselves Over Competitive.
Perhaps that needed explanation: http://maps.google.co.uk/maps?f=q&source=s_q&hl=en&geocode=&q=Over,+cambs&sll=51.438601,0.561676&sspn=0.330434,0.738831&ie=UTF8&hq=&hnear=Over,+Cambridge,+United+Kingdom&ll=52.316507,0.015965&spn=0.040505,0.092354&t=h&z=14
thats ok, im sitting here reading manuals to see what they wired on a machine im retrofitting
bugger shame I cant afford that toy at the moment
I can lend you the money. :-) Hate to see it go to scrap.
transport costs will swamp it too
just round the corner for you
It's quite a big corner. Sadly I have rather a small garage
I have a leaky garage with a missing door
I was actually rather more tempted by: http://cgi.ebay.co.uk/WILSON-240VOLT-SINGLE-PHASE-LATHE-/280564576821
never heard of that make but looks solid
I do need some proper work to pay for toys
Lathes.co.uk is quite complimentary about Willson lathes. I find the slant-bed appealing (and I think they did it first)
hmmm rigid tapping is not all that exciting after you have done 30 or 40...
I think the point is that it is less boring than the alternative :-)
the alternative is bad on the hands
I held a drill chuck and used hand friction and did a 1000 off 4mm holes for a job :(
luckily the lathe had a nice fast reverse
Cordless drils work well
I break more taps that way
machine tap and some guiding by the tailstock helps a lot
I did about 1000 1/4-20 tapped holes in some 1/8" tubing once with a drill. I got trigger finger from it
1/8" thick tubing
our were tattoo buzzer cores 8mm stainless
boss was on the capstan down in the basement I was tapping on a schaublin
this was some big sheet metal covers on some machines I built
schaublin web site says high precision lathes
oh, and VMC's
its not the job a lathe like that was designed for :)
[22:31:34] <L84Supper> http://www.cnczone.com/forums/showthread.php?t=67218
are there any other deals out there for replacing the leadscrews on Bridgeports?
linearmotionbearings2008 has transport grade screws really cheap
hmmm 50mi vs 6000mi... to bad shipping takes 2-3weeks
although that automation direct place seems pretty cheap
one of the flebay bridgeports I picked up is from 58' and has 50 mil lash
www.slidesandballscrews.co.uk are cheap, and shipping is very cheap if you are in the UK. (amd less so if you are not)
do they know the rest of the world exists?
I think so. (probably more so than most US stores). They are certainly aware of China, they have "Gten ballscrews" and "Chinese brand ballscrews"
(Checks Valen's info) You need shipping to Niger?
when i whois me it tells me sweeden
seems daft to ship china-uk-aus
They offer Austrailia as a country when you try to create an account, so that is one-up on the US sites that won't talk to you without a ZIP code. (I wonder if the US mail-order market has twigged how many people live in 90120 ? )
(I mean 90210 it, seems, after a google)
I installed emc2 on mi pc , when I run the program for executing a gcode , the emc2 program exceed the dimension of the a piece of iron
you need to look at the scale you have set
can I send you my file stepper_mm
sorry how can set scale into my stepper_mm file
i dont know
you need to tell us more about what actually happened
I charge the gcode file into emc in metric system and emc is configured in metric system, my piece of iron is lenght 140x65 mm,
unfortunately the piece worked from emc and of 155x72mm
when I give the command g00 x10 , the axis X it is moved of 15 mm
I have mounted two pulegge, 1°pulley Diameter 20mm teeth 20 and 2° pulley Diameter 40 mm tries 40
step screw from 4mm