LOL I love it... http://sfbay.craigslist.org/sby/for/1510522844.html
* jt-plasma listens to the Pickle Song
[00:16:53] <jt-plasma> http://www.youtube.com/watch?v=g266Uwp6ZnI
lilalinux is now known as lilalinux_away
I could mod one of these model M keybs like that steampunk one
but it may look steampunk, but it doesn't really work like one. A real one would use long levers like an old manual keyb, with a pickup drum to pull the key down with a nice clunk like a selectric
that needs lots of lasercut levers
but it would mean dust & juice would fall straight through
'twould be grand
* frallzor is tired
I only started this whole CNC project because I wanted to make a steampunk clock....
whats a steampunk clock?
A clock with a stempunk aesthetic
I don't like faking it too much :)
No, my clock will be authentically Babbage
(I have already spent a couple of hours in the science museum looking hard at only one exhibit)
andypugh: Take a video, it lasts longer =)
I'd like to make grandfather clocks with lots of extra functions
day, date, phase of moon, to start with
then weather, traffic and tides
more than one train gets tricky, the rope/chain only has two ends
say Goodnight Gracie :)
price of gold, length of skirt (one dial for both)
jt-plasma: See ya Groucho!
My clock will have four trains, so I am using a 4-way co-axial differential.
my clock will tell time in 3 languages.
yay, we're all turning swiss
my cuckoo clock is better than yours
not swiss, english, spanish and manderin
my clock can beat up your clock
I made a clock from a kit when I was a kid. it gained about 10 mins a day and gave up completely when the chain stretched
a 50Hz pendulum can look steampunk tho, with nice copper coils
maybe it was a time machine and it was taking you 10 minutes into the past each day
that's how I got here
time machine none the less
I was wondering what happened to the nineties and noughties
Jymmm is now known as Jymmmmmmmm
There are several days of the Noughties left.
eek, hadn't thought of it like that
No, nor had I.
When did time speed up?
some years seem much longer than average, but I haven't had many of them recently :p
if a 3 phase vfd starts on only 2 faces, does it mean it can run a motor if not too demanding then
I am not sure I understand the question
well It starts up with only 2 of 3 phases
probably not, although a spinning motor would probably be sustained if a phase failed
dunno, it can't be good for the driver
but could it run a less powerful motor if not using the full potential
Some VFDs are happy enough on 2-phase _input_ at reduced duty cycle. As the first thing that they do is rectify to DC.
2 phase output will not tell the motor which way to run, I don't think.
it wouldn't self-start at a minimum
that's a separate subject tho, straight 3 phase motors
VFD is another ball game
But, if the question is whether you can run your VFD on single-phase input: If it is working, then yes you can
is it covered by manufacturer's warrantee. that's what I'd worry about with a shiny new one
Some do specify a reduced duty cycle on single phase input. But then, how are they ever going to tell>
if you lie to them when they ask, it's fraud
I hate fraud
except for Emma, she's quite hot
Yeah, well, I tend to assume that other people are more normal than me, so advise accordingly. I am honest to a fault (seriously)
[01:18:03] <MattyMatt> http://www.contactmusic.com/photos.nsf/main/emma_freud_5267920
yep, still s-worthy
are vector drives the cat's meow as far as spindle control goes?
That's not emma freud is it?
i need a new vfd, i was reading about vector drives
unless the photographer was deluded, it is
She looked a lot better fatter
is a vector drive like a BLDC motor with a microstepper?
<ahem> Back to tpic
No, 'tis a VFD that can do slow speed a lot better
so it is better?
Yes. But it rather depends on how much better you need, as the cost is higher
any particular type that works better? i see some called sensorless vector drives... they seem to be cheap. any good?
my spindle is 3 phase 3hp 1700rpm
Sorry, I would be guessign if I even pretended to have an opinion.
same here lol
Dave911_ is now known as Dave911
[01:25:34] <MattyMatt> http://www.austriamicrosystems.com/eng/Products/Magnetic-Encoders/Rotary-Encoders
this place seems to do samples
the "programmable 360 deg BLDC commutator" one looks handy
sin & cos analog out could be handy too
but that could be done mechanically with an eccentric
isn't a traditional 3 phase motor the same as a 3 pole BLDC?
A 3-phase motor has no torque with a DC voltage
it wont be DC once the commutator starts chopping it
damn, half the vector drives on ebay are 400v
The rotor relies on induced eddy currents to make torque. I assume that a vector drive supplies carefully phased AC currents to the windings to keep the squirrel cage energised, and to then apply the torque
Commutator? There is no Commutator in either motor type.
a BLDC driver running off an encoder is the 'commutator'
Yeah, sort of, but a vector drive can run without an encoder
(And I think BLDC use analogue hall sensors)
the ones in floppy drives use hall sensors
but any angle sensor will do
Whereas a standard 3-phase motor has nothing of the sort, nor any permanent magnets
the 3 phase AC mains provides that
A BLDC will create torque with a DC voltage, a 3-phase motor needs AC.
yeah you'd have exceedingly crap low speed torque with coil-coil
but for a spindle, that's irrelevant
as long as it can start itself
Well, with high frequency excitation to keep the rotor energised and then superimposing the slow-speed signal on that, you can get good low-speed torque from a 3-phase motor, that's what I assume a vector drive does.
Depends if you want to use your spindle as an axis too.
more poles might be fun to play with, once I've got a motor-winder-robot
you could divide the electrical load between more transistors that way
that 12 pole one in the washing machine on instructables was half way between stepper and servo
martin's eagle2hal still exists at http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Eagle2HAL
Thanks, but the learning curve is such that it probably makes more sense for me to just use HAL and textedit
ries_ is now known as ries
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KimK is now known as KimK_afk
i added some pics about our emc-arduino gpio box https://m21.hyte.de/wiki/EmcArduino
m21.hyte.de uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown.
will add more documentation some other time
I am looking at making some changes in touchy. I am trying to understand the link from the GTK code label on_estop_clicked to HAl.
not sure what you're asking - say more?
when I open up touchy.glade I see a signal associated with the estop button. the signal is on_estop_clicked. I am assuming that this signal is linked to HAL thru Shared Mem. But I am unable to find how this works.
there's a mapping in touchy.py from those signal names to the corresponding python code
so I am agian assuming that the line on_estop_clicked : self.emc.estop is a link to the bit in shared memory?
no, it has nothing to do with hal or shared memory
at this level, it's a plain old gui running plain old python code
I do work with C. I have never used Python. So Where in the code does the link to HAL take place thru Shared Mem if it does. Sorry for my lack of knowledge.
that's probably not the question you really need to ask :)
the HAL interface to python is in the hal module (import hal)
you create pins and look at their values with python code
(you can see a lot of that in one of the touchy source files)
what about the gtk link to HAL? is HAL a gtk prog?
there is no direct manipulation of HAL shared memory in the python code
maybe you should back up and say what problem you're trying to solve, instead of asking one specific question about it?
MattyMatt, no, HAL is kernel and userspace C code, but you can write GTK programs that also access HAL using one of the HAL libraries
halscope is an example of a gtk+HAL program
I am trying to add state colors to some of the buttons so you can look at the interface and see what has been selected.
touchy does have hal pins
but what you're trying to do has nothing to do with hal
you're firmly in the gtk+python realm here
Then who keeps the state so other interfaces are also updated?
that information comes in through the emc stat buffer
see periodic() in emc_interface.py
I will look. Thank you.....
I should rtfm I think :)
rtwfw (whole fine wiki)
would it be overkill to use EMC to control an oven if all the oven has is a relay to enable or disable the heating elements(feedback is via a SPI interfaced thermometer)?
no kill like overkill
it isn't like you can PWM a relay!
how many elements? door switch? light? fan?
they make these things called thermostats...
i need a programmable heat profile
too much hysterisis in a thermostat. your souflee goes flat
flexible... want to experiment with reflowing things
hal + classicladder maybe
that will be useful even if it is just a relay?
I see 2 ways of going about it -- piggy back off the machine controller running EMC or write a quick and dirty dos program and slap on an ancient 386 motherboard to run it
if it was a pizza-conveyer it'd be worth the effort
yes hal will be useful and yes even if it is just a relay and dont use emc if you have no motion and no position
it would be cheaper then paying $200 each time for someone to run a few boards for you
toaster is the right size + heat for SMT
you can order PCBs for about $20 but you can't get assembly for that price
that's the fun bit, for the first few boards
tom3p: would a SSR make any difference?
paste deposition. that'll need a squirter tool
nah... simple solder stencil
or pretin the board before you mill it
really? a tray of hot solder for hot dip?
I don't have a cheap solder pot
ds3 ssr can be triggered by 3to24Vdc or by 5V ttl or by ac or... lotsa kinds of ssr's, often easy to interface to parport
and the emersion tin chemicals are nasty
ds3: sure you do.... electric frying pan
tom3p: but someone told me there is a larger drop across it?
any frying pan
For the trouble, I stil rather not
ds3 i think emc is the wrong tool for the job, but why not use a proper ssr and an avr?
less trouble than mylar masks, if you ask me
but a paste squirter is neatest
ds3 avr as in arduino or so for simplicity
roh: because then I'd need to BUY an avr... I have a pile of old PC MB's
ds3 will be working much faster
ds3: pick one,read the mfctr's data sheet and app notes. they work for many people ( else they would'nt be sold still... see Greyhill, P&B, opto22... )
ds3 also you need to monitor the temperature somehow
MattyMatt: it is less trouble for me to order the boards with ENIG finish
ds3 means you need some analog input.. or some fancy sensor
ENIG = green varnish?
tom3p: I'll consider it... the plus side is i don't have to worry about an arm warning out
roh: Maxim chip + K thermo couple... perfect for a bit bang SPI from the PC
Mattymatt: no... emersion nickle with thin plating of gold on top of that
ds3 i'm still sure its more hassle than gain to use a pc
roh: I thought about it and I don't think so... if I go that route, I might as well buy the kit from Sparkfun
they have a PCB for a PIC and firmware to flash it on
all this gold will keep the recycling industry going
ds3 there is also ready done code for such a thing i guess.. seen other pizza ovens used for that
it is like 1 micron of gold
the lead-free stuff is all either 3% silver or 3% gold
roh: yep... plus I can't network it...nice thing about a PC is I can network it
ds3 not really true
MattyMatt: no.... pure tin finish is RoHS acceptable
there are multiple ethernet boards for avrs around.
roh: they all cost more then $0.00
en28something based, wiznet based and some others, including wifi and zigbee
yes, the microchip part... I am familiar with it
I think the gold stuff is for hand reworking
the ssr is more expensive anyhow. for an oven one needs 1-2kw which is about 20-30E usually
it is about recycling... not going to build more stuff then I need
and if I were to do it, I'd use those ez430 boards that TI gave away
* MattyMatt hoards his 60/40 multicore
i've tried out the eagle2hal, its a lot like my gEDA2hal stuff. The approaches are very similar, the problem is writing the libraries. you have to write every hal element. just time consuming and wulio (boring).
the lÃoad switch. opto isolated solid state relay
[05:51:02] <ds3> http://www.mpja.com/prodinfo.asp?number=16596+RL
[05:51:07] <roh> http://en.wikipedia.org/wiki/Solid_state_relay
ah.. small oven only?
1500W toaster from walmart for $15
or are you in 230V land?
_low budget_ at work here
toast is toast. wherever they are made they reach the same temp
then an 18A relay is pretty low speced
why? 18A * 120V >>> 1500W
yes. ever heard of load spikes?
so is self.emcstat.poll() the function that sends and receives information from the stat buffer? Where do I find the fields names for the stat buffer? Is periodic(iself) the main program loop? Thanks
SSR's don't tolerate that?
ds3 they do. thats why one overspecs properly
a resistive load doesn't produce any spikes except the power surge
hm.. funny.. they dont sell <25A here it seems
roh: I don't understand... I thought the 18A figure is for continous and they will tolerate a brief overload?
MattyMatt ack.. and that surge i am talking about.
MattyMatt: good luck getting anything that is purely resistive
and the fact that i wouldnt be so sure the resistor in that case has the same resistance when still cold
it won't. a soft-on would be nice
ssr only do 0-voltage switching, means in sync with the ac, so its only a nice start, not really soft as in prewarm or so
toasters are just a long strip of nichrome
MattyXM: the ones here have a crystal bulb
no visible wire
nichrome wire is also a bit inductive
I'd avoid that. you don't need sth tuned for radiance
yeah long wire is an inductor
FSCK ME.... http://finance.yahoo.com/news/Credit-cards-newest-trick-799-apf-3359014390.html?x=0&.v=4
but anyway, it's as resistive as any load ever gets
except a light bulb
a chunk a carbon is more resistive
the RF folks have dummy loads that ismore resistive
well.. its your shack you hopefully dont torch... i usually overspec by 100% if possible
and feasible.. on caps for example that can be bad
buy the cheap relay, and spend the savings on a fire extinguisher
25A for 12$
and one of those hi-building parachutes
roh: so you'd recommend at least 25A rating?
ds3 in bat^W120Vac country yes.
"ssr only do 0-voltage switching" ? no, ssr's are just solid state, not necc ac, not necc 0crossing trigger, lots are dc control
ds3 better safe than sorry, and thats 3 bucks well spent
tom3p sure.. i think we were talking about the 'hockey puk' type modular ones usualy around like these
roh: don't argument... I was looking for opinions... SSR's are new to me; I understand mechanical realys
ds3 its basically all the nasty part of doing it without mechanics abstracted away into a neat plastic box
roh: *nod* it is the overspec factor
some opto-coupler, filters for noise, ac 0V detection, solid state switching element. can recommend them. makes stuff more easy to build and less to do wrong when handling huge loads of ac
can they be PWM'ed?
why pwm an on/off device?
nichrome wires can tho
but on some heater like that, you can do simple n-second banging.
i mean.. it has some huge thermal resistance anyhow
the other direction is I do an optocoupler/triac setup
that I know will PWM fine
reprap extruder does PWM on nichrome
using a servo dricer
but i wouldnt do that too fast (>1switch a sec) i guess.. more to be nice to the grid
we don't have PF regs here yet, AFAIK ;)
MattyMatt yes.. for 20-30W ;)
so scale it up a little
a PWM setup would fit EMC's forte a bit more
MattyMatt and usually they use a FET and dc. the servoamps are for steppers/dc geared motors
divide the oven into zones, with 20W each
you need +/- 5C I think, because some of the processes are 10C apart
that shouÃld be possible even with low pwm speed
I am not modifying the oven
I would. an insulated door would make it more efficient
getting it cool fast enough is more tricky i guess.. the oven ive seen was having a 'flÃap' on the back opened by a model-servo and connected to a metal-fan and some 30cm of warm air-pipe into the room.
to get the hot air out of the oven fast enough for the cool-down phase
this will not be another infinite deep spiral
* MattyMatt craves firebricks
freudian truth. I meant to say I was carving them already :)
the model servo is also pwm controlled. the frequency is fixed and the pulse-length is somehow an 8bit value for the angle
no 8 bit, they are usually analog
the driver would tend to be digital these days
MattyMatt: why carving fire bricks?
I saw a neat design for a 900F oven in an old jewellery book
backyard pizza dome ovens ... 1200degree
and the neatest foundry I've seen used them too
8 bricks, the middle 4 with semicircles out
and the best place in UK to buy bricks & refractory has a wide range of pizza ovens :)
I'll take a pizza :o)
it'll never catch on here until we're properly mediterranian :)
75 seconds per pizza at 900 deg
it's hard to care about global warming in the UK
bring it on
global warming schmobil .....
oh global warming is happening alright.
we need more smog, that used to balance the co2
planting the sahara is our biggest terraforming job
I favour geothermal boiling of seawater
MattyMatt, sure its happening ? Have you looked at the CRU emails ?
Conservative Reactionary Union?
yes I'm absolutely bloody sure
Climate research unit
I don't think anyone is still arguing credibly that the world isn't heating up
idk what part of hide the decline ppl don't get
Global temps have more to do with the moisture content of the air , which benefits from particulate
or smog as you called it
sounds like you don't understand what hide the decline means
lol, i understand ccx is a racket
climate change denialists are idiots
take it somewhere else
LOL to each their own
if we didn't have to share the climate, that would be true
*ALL* of you zip it
you fuck w yo planet, you fuck wit mine, sucka
* MattyMatt pity tha foo
I pity the polar bears a lot more, of course
let's not discuss this, I can't be civil
MattyMatt: Dude, just chill man
not appropriate here
Thats fine , didn't mean to ruffle feathers with one question ...
I said terraforming :) my seawater tunnels will be run on emc
MattyMatt: It's not funny. Just stop already.
lilalinux_away is now known as lilalinux
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If I make my spindle mounting adjustable with a screw opposing a spring. which way should it spring to avoid chatter?
or should I have a light spring and then an opposing lock screw?
ah, I'll just have an array of random bolts pushing and pulling in various directions. no springs. I'll only need to adjust it once hopefully :)
adding springs can cause chatter
I might do bicycle spokes like guy ropes
the usual cause is spring in the frame
but that brings me back to the problem of ruining a good bike wheel :)
I'd like to, but I'm down to what I've got at hand. the kitty is empty
I have no job at the moment but have learnt that crap assembly does not work
MarkusBec is now known as MarkusBec_away
MattyMatt what are you trying to do?
I charged ahead to get a working Z, after I lost my plans for the twin Z, but otherwise I've been careful to keep it all solid & adjustable
no glued parts
my Z slide has a wooden (nice oak) extension down to the spindle mount (plywood & I'm making a steel ring for the dremel-mount at the nose). The extension can be adjusted at the top (3 screws) but I'd like to adjust the mounting rings at the bottom too, to align the spindle along Z
ah I got an idea. easier done than said. pics to follow
* MattyMatt does
cradek: do you have any more pictures of your Mori? I saw the completed machine all painted nicely.
a video with it getting dirty making something ?
nope, no nice pics or videos, sorry
it's slightly apart again - I'm trying to mount an encoder to the spindle but life keeps interfering
what touch panel monitor did you use?
it's an elo
a real glass one
not sure the model...
I wish I knew more about the touch screen on the front of my PC
cradek: so when you are using 'Touchy' I assume that you don't have to log in when you turn the computer on. Is that correct?
yeah I have the mill set for auto login
I poke the desktop icon to start emc, and later shut down the machine using the toolbar icon
do you plan on making emc auto start at some point?
so that you don't have to even turn it on from the desktop
no, I don't care about that
I have no reason to hide that it's a computer, and I might want to start emc more than once
I'm going to use emc at work for something and want it to start automagically
I'm sure that's possible
Paul helped me set it up years ago on an ancient version and I have to find my notes
I doubt any of it would be relevant today anyway
just ask the internet how to make a program start automatically in gnome
oh, I found it on linuxcnc :)
or a stub anyway....
[15:14:54] <danielfalck> http://linuxcnc.org/docs/html/common_Linux_FAQ.html#r1_1
ironic that I found that through google
well that looks pretty simple
it's a lot simpler than it was 5 years ago
so are a lot of things
did you reuse the servo amps on your Mori?
were they Yaskawa?
they are very high power
what kind of input did you have to send to them? ±10V?
there is no main transformer - servo supply is rectified/filtered 240 3ph
big boys then
yeah it's a very fast and strong machine
rapids 900ipm accel 100ipm2 - I have it set at half those
does it shake the shop floor when you rapid at 900ipm?
but I had it cranked up that far to see it... I didn't like how much the floor moved.
yeah, a lot.
9 seconds to full speed? that seems slow
(high full speed though)
heh, I meant 100 ips2
I was probably off by a factor of 60 in the other direction anyway
ok, that's quick :)
do the lights dim at those settings?
not that I noticed
I have the shop lights coming from the main house panel for safety
I've never tripped the subpanel breaker but it's sure possible, and I don't want it to go dark
heat + compressor + mill = a lot
how many amp breaker feeds the sub-pannel?
I don't remember
we are running the whole house on a 100a breaker from the garage.. so far so good. been a few weeks now.
I think our whole house is 100 or 150
subpanel might be 50?
skunkworks: what kind of business? mills/lathes?
misread (thinking about my garage)
dreaming about a nicer shop....
the house only had a 125 amp service.. so descided to move the service entrence to the garage and back feed the house. so in the garage I have a nice new 200a service
though it's tempting for some reason to flip the breaker when I am in the garage and the wife is in the house.. ;)
skiing was a success.
no broken bones.
new skis worked well.
is everything I do, if I don't break bones, a success?
I never thought of it that way, but that's very liberating
(glad you had a good time)
that is actually on of many ways to measure success..
making it this far in life with all of ones fingers is another.
* skunkworks counts them again to be sure
[16:45:27] <cradek> http://www.youtube.com/watch?v=hkDD03yeLnU
lilalinux is now known as lilalinux_away
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VERY slow loading this morning
description looks interesting,... still not loaded....
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Dave911_ is now known as Dave911
Dave911_ is now known as Dave911
skunkworks: Hi Sam, John said to me earlier (he's not here now) that he and I are not far away from you. Would you be up for a visit sometime?
EbiDK is now known as EbiDK|AWAY
KimK: you guys are in the cities - right? We are near lacrosse.
what's an U-DIMM DDR2 memory stick?
just normal DDR2?
is that a lappy size one
no, that's SO-DIMM
it looks like UDUMM just menas that it's unregistered/unbufferes
like most consumer DIMMs
I'm thinking about an Atom 330 motherboard for emc2/lathe-control
your thinking works properly then
are there adaptors for using an SD-card (or CF) as a SATA hard-drive?
for cf there is
if you want to compare the pinouts of 240-pin USIMM and DIM, look at pages 7-9 here: http://download.micron.com/pdf/technotes/ddr2/TN4703.pdf
I don't feel like looking at all 240 pins myself
SWP's post got me thinking about the atom: http://article.gmane.org/gmane.linux.distributions.emc.user/18073
does the mini-ITX board work with a normal ATX psu?
in fact, the D945GCLF2 needs a P4 4-pin extra power plug as well
hm, a small case would really require a pci-riser thingy to fold my m5i20-card to be parallel with the motherboard...
may I recommend the M300 or M300-LCD?
[21:28:59] <SWPadnos> http://www.mini-box.com
they come with a PCI riser card that does just that, and they're about the smallest case I've seen that still has room for a PCI card
there's also a USB CF adapter, which I believe the system can boot from
I wonder if it would be cheaper for me to just buy online from the US...
it wouldn't surprise me
those cases do need a picoPSU or similar though - there's not a lot of room for a power supply in there
the PicoPSU runs off DC, 12V, 12-25V, or 12-36V depending onwhich model you get
[21:37:05] <skunkworks> http://imagebin.ca/img/I4ld2q.jpg
skunkworks: Love how you have it sitting on a antistatic bag
no - it is sitting on a book. sort of.
skunkworks: Well, how's the latency on it?
I am running koalla
skunkworks: and what SATA card is that?
some cheap pci card
nice skunkworks, that bag is a nice chassis =P
skunkworks: Did you check the thermal grease on BOTH heatsinks?
seems like it is working good. used mdadm to setup softraid. I can copy a 1gb file over the network in about 25 seconds.
no - not yet.
I can copy the same file from raid to onboard sata drive in about 10 seconds
skunkworks: Ok, now load up a 2GB 3D Blender animation and render it =)
this is only for file serving
skunkworks: No, that's the thing you using as a bench is for =)
are you going to mount it all in the breaker panel that it's sitting on ? :)
heh - that too
danielfalck: That's not a breaker panel, that's a 3U server
those are some old xseries ibm servers.
IBM if I'm not mistaken
we are still using one for 'gasp' netware
so I wanted a few extra for parts
Gawd... I've been doing this shit for far too long.
which nw version?
Hey, ther'es nothing wrong with that.... has cool accounting features
and it 'just works'
I had it run for years without rebooting.
netware has (more or less) always had the best permissions hierarchy
yes - it sucks going to windows when you started with netware.
4.11 - sorry
that xseries was about the newest I could find that still had hardware drivers for 4.11
ebay is great
skunkworks: Yes, we're NW of Minneapolis. John seems to have an idea where you are (I think, he's not back yet).
The shop is a mess - but I am sure dad would like to see you guys again.
(trying to shoe-horn a car lift in)
I think that was used also
skunkworks: wait, you said CAR?!
never seen one
[22:00:00] <skunkworks> http://www.alibaba.com/product-gs/257318016/automobile_lifts/showimage.html
something like that
OH! a shop car lift. I thought a lift for wheelchairs
picture is worth a few words. ;)
skunkworks: as flimbsy as they look, they are pretty sturdy.
Yes, those car lifts can be handy. A friend of mine put one in about a year or so ago and he's very happy with it. I could ask him what brand it is if you'd like.
this was out of a local garage... so it is commercial
Oh, you have it already, OK, nevermind.
yes - again - ebay. ;)
I'll chat with John (probably tomorrow) and get back to you later about setting something up. I didn't ask John but I'm sure you guys would be welcome to visit here too sometime.
Anyone know a way to clear out the rtai_sched and rtai_hal modues when EMC doesn't clean up properly? The only way I know of involves walking out to the garage, through the snow...
sudo /etc/init.d/realtime stop
if that doesn't work, then you'll need a bigger gun
Thanks, looks like the bigger gun....
ERROR: Removing 'rtai_sched': Device or resource is busy
Can I set the state of an IO pin directly in a HAL file?
I want different configs to set different hardware options, but don't want to link them to ui buttons or built0in pins
somebody just asked if stepper psu needs to be regulated? shall I tell him no?
ignore first ? mark
ah, I was hoping for a definitive answer, before I start FUDding :)
Considering that the stepper will be running at several times rated voltage, a 10% sag under load is of little consequence.
andypugh: sure, use setp
cradek: Thanks, I found out how. I was hoping to name the signal, but it didn't like that.
I wanted to do net signalname => gpio.pin and then setp signalname 1 but that was frowned upon
the halcmd man page is a pretty decent reference for these kinds of questions
sets signame value
(set signal) Sets the value of signal signame to value.
Yes, sorry. I had thought that setp was the only one, like net replaced linkp and links
actually sets is the older one
and that wasn't original - you had to use a 'constant' component to generate the value for a signal :-P
Next annoying question: When you turn on the machine in axis, the axis.n.amp-enable-out pins go high. Is there a similar signal that could be sensibly used to enable the power to the VFD (not the start/stop, just the power to the unit). I could use halui.machine.is-on but that seems a little inappropriate
what do you mean similar? you could of course use the same signal
unless you want it to come on at a different time - and if so, what time?
I answered my own question, I think. I just found a spindle-enable signal
you don't want to switch the vfd's input power except in emergency - see its manual
I am setting up a number of different geometries (it can be used X,Z as a lathe, X,Y,Z, A or X,Y,Z,B or X,Y,Z,C)
Indeed, I want the software e-stop to power-down the VFD like the HW ones do.
So, I need to find a signal to turn it on, too.
(I could, of course, simply use estop-out)
yeah seems like the estop output
I was intending to link it to the on/off button function, not the estop button though.
But I guess the amp-enable signals originate from the machine.is-on pin, so using that is probably fine
yeah I bet those go together
just tap in to one of the amp-enable ones. those are realtime. halui isn't
I feel I should have an OR block on all the axes, though that is probably silly as I don't think there are any configs without an X axis, even if that is the Z axis driver in lathe mode
they all go on and off together anyway (no I don't know why there is more than one then - it's just always been that way)
Ah, yes, good point. I was getting hung up on name rather than behaviour.
fuck I feel like shit..