#linuxcnc Logs

Aug 04 2017

#linuxcnc Calendar

01:32 AM IchGucksLive: morning from germay
01:35 AM IchGucksLive: n
01:52 AM IchGucksLive: off till later
02:42 AM Deejay: moin
02:59 AM evilren: no u moin
05:41 AM jthornton: morning
05:44 AM XXCoder: hey jthornton
05:44 AM XXCoder: guess what? my normal exit opened up, finally!
05:44 AM XXCoder: BUTTTT today is thursday, and its day I usually don't go direct home but out eat then go to food store for next week.
05:49 AM Deejay: hey
05:49 AM XXCoder: hey
05:49 AM jthornton: exit on the interstate?
05:50 AM XXCoder: yeah
05:50 AM XXCoder: its been closed for weeks
05:50 AM XXCoder: and there is no nice way to go to highway to my home from it, so I have to go south some more, turn around and use north exit to it
05:51 AM XXCoder: combined with most south exits near work closed, we get captain pla *** no I mean miles longer trip and yet another turnaround
06:07 AM jthornton: looks like no rain today so time to move the hydraulic lift table and the 4.5' x 4' x 1" work table from old shop to here
06:08 AM archivist: and you get stuff out and effin rain starts, been like that here recently
06:09 AM XXCoder: lol
06:09 AM XXCoder: archivist: I remember being unable to mow because each time weekend come, it rained hard but monday to thurs it was sunny :(
06:10 AM XXCoder: evenually at third week I said fuck it and mowed in heavy rain
06:10 AM XXCoder: mower can handle water as long as never turn off
06:11 AM jthornton: sold the electric forklift yesterday but need to load out the heavy stuff first
06:16 AM gonzo_: just keep the spark cap dry
06:17 AM XXCoder: since its open on top it cn flood with water if left at off
06:17 AM gonzo_: wd40 is your friend
06:17 AM XXCoder: yeah dont wanna have to lol
06:18 AM gonzo_: but in the wet you will look like a yhetti with all the grass clipping stuck to you
06:19 AM XXCoder: heh ot was raining hard enough for me to stay fairly clean
06:19 AM XXCoder: only legs had some
06:37 AM Tom_L: JT-Shop, is your 308 a coversion?
06:44 AM * jthornton waves from down in the beer cave
06:44 AM jthornton: no, it's still running the old DX32 control
06:45 AM jthornton: the problem in conversion is the spindle drive is not a normal one but a "high performance" servo motor that requires a special drive
06:46 AM Tom_L: i'm trying to figure out the orient comp and was reading a thread that mentioned it
06:46 AM Tom_L: just wondered if you had messed with orient or M19
06:47 AM Tom_L: or if it's even needed now that andy has the carousel comp
06:48 AM XXCoder: oh yeah that reminded me
06:48 AM jthornton: the carousel comp is for the tool changer carousel, orient is for the spindle so most machines need both
06:48 AM XXCoder: been running parts on robodrill
06:49 AM Tom_L: ok i didn't know if andy had included orient as part of it
06:49 AM XXCoder: whats weird about that is programs there uses m2 to end gcode program not m30 like all others that I know of
06:49 AM Tom_L: XXCoder, it doesn't repeat
06:50 AM XXCoder: whats weird about it? it does.
06:50 AM Tom_L: http://linuxcnc.org/docs/2.7/html/gcode/m-code.html#mcode:m2-m30
06:50 AM XXCoder: maybe it uses very short program that does function call and what I saw is that but when it ends it returns, and it has m30 but it displays too fast or something
06:50 AM Tom_L: they have slightly different behavior
06:51 AM XXCoder: yeah I know about that, just found it unusual
06:52 AM XXCoder: interesting
06:54 AM rene-dev: jthornton define special drive
06:56 AM jthornton: it was a few years ago when I looked into converting it and have slept since then but I remember you can't run this type of motor with a normal VFD
06:56 AM rene-dev: what type of motor? what current?
06:57 AM jthornton: dunno of the top of my head
06:58 AM jthornton: I can look later when I go out to the shop
08:40 AM Vitran: Question due to my limited experience with servos. The servo on my machine has 24VDC connected to Enable, so my guess is whenever the servo is on it is on. Now, the old wiring of the servo had a wire going through a relay connecting 24VDC to 'Enable Delay'. What does Enable Delay do? As well, there is a 'Drive Ready Relay' that sends a signal to the PLC that I don't know what it does either
08:45 AM sync: look in the manual of your servo amp what enable delay is supposed to do
08:46 AM sync: but enable tells the servodrive to put current into the motor
08:46 AM sync: and drive ready tells the control that the drive is ready to do this, most likely
08:46 AM sync: if there is a DC link failure or whatever it will tell the control that it cannot energize the servo even if commanded to do so
08:47 AM Vitran: I can't seem to find a lot of info on the servo drive is the problem
08:49 AM Vitran: it is a set of 3 DC servos in one that has one enable to enable all 3 drives.
08:50 AM Vitran: Is there a pin in LinuxCNC that would take a 'drive ready' signal?
08:50 AM Vitran: never mind, I'll search for it.
08:57 AM JT-Shop: rene-dev: http://gnipsel.com/images/discovery-308/ spindle photos show the info
08:58 AM JT-Shop: now I recall because the servo motor is a permanent magnet motor that was the issue using a vfd
08:59 AM sync: ya JT-Shop
08:59 AM sync: it says 3~ Permanentmagnetmotor
09:00 AM sync: but 11kW is outside of the capabilities of the stmbl product group as of now
09:01 AM JT-Shop: stmbl?
09:02 AM sync: yes
09:09 AM JT-Shop: what is stmbl?
09:21 AM _methods: poor XXCoder
09:21 AM _methods: looks like you'll never get to ride in that elio
09:21 AM _methods: https://www.digitaltrends.com/cars/elio-motors-financial-woes/
11:50 AM IchGucksLive: hi
12:16 PM IchGucksLive: its a miss the summer here in germany rain all day
12:20 PM roycroft: no rain here
12:20 PM IchGucksLive: smiles
12:20 PM roycroft: we've had record high temperatures all week
12:20 PM roycroft: and smoke from forest fires 900km away filling up the valley
12:21 PM IchGucksLive: oh rom italy did hit 42deg
12:21 PM roycroft: our official high yesterday was 39, but that was at the airport
12:21 PM roycroft: it was 43 in downtown eugene and at my house yesterday
12:21 PM roycroft: it really has been hot
12:21 PM IchGucksLive: kuwait did hit 51 on wendsday
12:22 PM * roycroft notes that he does not live in kuwait, for a number of reasons, that being one of them :)
12:30 PM Loetmichel: IchGucksLive: i just went on a convertible ride to get some subway sandwiches for me and my wife... slightly cloudy but perfect "open" weather
12:31 PM Loetmichel: no rain in sight ;)
12:31 PM Loetmichel: (maaan, 25km for a sandwich... the local subway seems to have losed a while ago :-( )
12:32 PM Loetmichel: ... not that i mind driving the 318i around in this weather. :-)
12:32 PM IchGucksLive: subway is quite expensiv i make my own ones bigger and cheeper
12:33 PM Loetmichel: it is. 2 footlongs and some chips: 25 eur... OUCH...
12:34 PM IchGucksLive: a bakery will charge 2 euros on a footlong
12:34 PM Loetmichel: but if wife wants some footlongs: who am i to object? especially if its a reason to drive the convertible?
12:34 PM Loetmichel: ;-)
12:34 PM roycroft: i don't understand people buying and eating a "foot long" sandwich
12:34 PM IchGucksLive: 1.5 chees 1.5 meet
12:34 PM roycroft: on the rare occasions that i go to subway, a 6" sandwich is more than enough to eat
12:34 PM IchGucksLive: roycroft: o did a 3ft at Niagra fals
12:35 PM Loetmichel: roycroft: may have to do with the fact that we both are a bit "overweight"?
12:35 PM roycroft: a meter of meat!
12:35 PM roycroft: i'm a bit overweight too, although i'm doing well at dropping some of it
12:35 PM roycroft: 8kg in the past six weeks :)
12:35 PM IchGucksLive: mutch cheeper then a large medium rock stake in CA
12:36 PM * Loetmichel needs to lose about 40kg... at least according to my Physician.
12:36 PM roycroft: that's actually an almost dangerous rate of weight loss, but it's slwoing down now
12:36 PM roycroft: another 9kg to go and i'll have reached my immediate goal
12:36 PM IchGucksLive: depending on overwait value it is not that hard
12:36 PM roycroft: if i can do that by year's end i might set a new goal of losing another 9kg
12:37 PM Loetmichel: <- 126kg atm... and climbing :-(
12:37 PM roycroft: i'm already a lot healthier having dropped the 8kg
12:37 PM IchGucksLive: eatch kg counts
12:37 PM roycroft: yes
12:37 PM IchGucksLive: not only on body also on cnc
12:38 PM IchGucksLive: if you carry the mashine
12:38 PM roycroft: up until my late 30s i was stuck at 62kg - the same as i weighed when i graduated from high school
12:38 PM roycroft: then it shot up to 80kg quickly
12:39 PM roycroft: and then 90kg
12:39 PM roycroft: and then 98kg
12:39 PM IchGucksLive: yeah marriage is a body killer
12:39 PM roycroft: that last big after multiple bouts of pneumonia
12:39 PM IchGucksLive: you need to go seeside
12:39 PM roycroft: i lost significant weight during each episode, but gained it all back and more as soon as i mostly recovered
12:40 PM roycroft: i spent as much time on the coast as i can
12:40 PM roycroft: i do want to move there some day
12:40 PM roycroft: my new doctor determined that i had walking pneumonia ever since the first infection
12:40 PM roycroft: i.e. it never totally cleared up
12:40 PM roycroft: but now it has :)
12:40 PM IchGucksLive: we all gone die early
12:41 PM roycroft: i went on a prolonged period of taking antibiotics, and then a chest x-ray showed the infection was finally all gone
12:41 PM roycroft: now i can exercise without feeling winded immediately
12:41 PM roycroft: but i basically had pneumonia for 5 years
12:47 PM IchGucksLive: what a nice weathere in munich germany the oktoberfest /beerparty is setting up http://www.wetter.com/hd-live-webcams/deutschland/muenchen-wiesn-theresienwiese-oktoberfest/56b89d26cebfc07b258b4573/
12:48 PM roycroft: oktoberfest is still over a month away, isn't it?
12:52 PM IchGucksLive: yes it is
12:53 PM IchGucksLive: roycroft: the largest hevy meathal festival is on air
12:53 PM IchGucksLive: in WACKEN
12:53 PM IchGucksLive: there is a free livestream
12:53 PM IchGucksLive: https://www.magenta-musik-360.de/
12:53 PM roycroft: no thanks
12:53 PM IchGucksLive: you need to accept the agreement to dont record and publish
12:53 PM roycroft: i'm not a heavy metal fan
12:54 PM roycroft: i listen to hippie music :)
12:54 PM IchGucksLive: so BRC2017
12:54 PM roycroft: and classical music
12:54 PM roycroft: and jazz
12:54 PM roycroft: and stuff like that
12:54 PM roycroft: lots of celtic music
12:54 PM roycroft: heavy metal is just noise to me
12:54 PM roycroft: but know lots of folks like it
12:55 PM roycroft: as i always say, different strokes for different folks
12:59 PM phiplii: evening
01:01 PM IchGucksLive: hi
01:02 PM phiplii: how goes?
01:03 PM IchGucksLive: not that bad
01:03 PM phiplii: :) good
01:03 PM phiplii: lovely sunny evening here
01:17 PM IchGucksLive: im off Night from Germany
01:29 PM CaptHindsight: lovely 60f 15c here today after weeks of hot and humid
01:31 PM CaptHindsight: loolapalooza shut down early yesterday due to storms, wow >$100 for a ticket
01:45 PM * JT-Shop goes back to the other shop for another load of "stuff"
02:53 PM gorbypark__: any instructions out there for installing on a fresh Stretch install? I'm kinda assuming i can just install the rt-preempt kernel and add the linux cnc apt repo and install?
02:53 PM gorbypark__: i'm on wheezy right now..
02:55 PM CaptHindsight: and a few other settings
02:56 PM CaptHindsight: oh I'm thinking RTAI
02:56 PM CaptHindsight: gorbypark__: did you use the Google to look for howtos?
02:58 PM gorbypark__: i found a couple of forum posts about installing jessie and wheezy back ports, but no how to per se..
03:13 PM Adamj12b-web: CaptHindsight: Was it you that said you had DMM-Tech servos the other night?
03:18 PM XXCoder: _methods: interesting. they are working on factory so lets see.
03:27 PM CaptHindsight: Adamj12b-web: that is Pete
03:33 PM CaptHindsight: Adamj12b-web: I usually use Parker, AB, Yaskawa etc
03:35 PM Adamj12b-web: ok thanks. I thought somebody else said they did as well. His are not up yet I dont believe.
03:35 PM Adamj12b-web: I got torque mode working last night. Tonight I want to try velocity mode.
03:36 PM Adamj12b-web: This is on an unloaded motor.
03:44 PM Adamj12b-web: One of the pieces I would like to control is the lube pump on my machine. If I add the hal code from this example to the custom.hal file in the profile director, is that file parsed automatically or does something need to initialize it?
04:07 PM JT-Shop: Adamj12b-web: http://linuxcnc.org/docs/2.7/html/config/ini-config.html#_hal_section
04:07 PM lunada: Hi
04:12 PM Deejay: gn8
04:12 PM lunada: So i have a weird (to me) issue. I'm getting a need tool prepared txx for toolchange error.
04:13 PM lunada: i'm using tool number 1 with g43h20 since i'm using a different tool in pocket 1.
04:13 PM lunada: i have used this combo before and it worked fine.
04:53 PM Adamj12b-mobile: JT-Shop Thanks!
05:14 PM Adamj12b-mobile: Any idea why i cant select "use index for homing" in pncconf? Im using a 7i77. The dropdown is disabled.
05:16 PM CaptHindsight: pncconf is a work in progress
05:17 PM CaptHindsight: you'll have to finish editing your configs with a text editor by hand
05:31 PM Tom_L: andypugh, your carousel comp dosen't handle spindle orient does it? one needs to use orient first?
05:32 PM andypugh: That is corect. Though they should be easy to combine, connect orient.oriented to carousel.enable.
05:33 PM Tom_L: i'm just testing what i can here. wanted to see if i could get orient working on my little mill
05:34 PM andypugh: Should be possible. You need a PID too, typically.
05:34 PM Tom_L: yeah positional
05:34 PM Tom_L: apparently the demo uses a mux to switch between velocity and positional PID
05:34 PM andypugh: It would be nice to make a do-all comp for orient, but spindles vary too much
05:35 PM Tom_L: haven't looked into it alot yet
05:35 PM Tom_L: yeah
05:35 PM andypugh: Yes. Have you seen my logic diagram on the Wiki?
05:35 PM Tom_L: no but i'd like to
05:36 PM Tom_L: i don't have a tool changer, just testing this
05:36 PM andypugh: http://wiki.linuxcnc.org/uploads/orient.svg
05:36 PM andypugh: Ctrl+ will expand it on most browsers
05:36 PM Tom_L: thanks, that was my next q
05:37 PM XXCoder: or ctrl-mousewheel
05:38 PM Tom_L: so orient doesn't use the index channel of the encoder...
05:39 PM pcw_mesa: Its sort of related to the combined rotary axis/spindle issue
05:40 PM andypugh: Tom_L: No but yes. You need to set index-enable in the HAL file, and make sure it has turned past index before trying to orient.
05:42 PM Tom_L: nice chart
05:49 PM andypugh: Maybe print it out and write on the signal names from your own config
05:49 PM Tom_L: i did print it
05:49 PM Tom_L: it would be a handy link from the wiki page...
05:51 PM andypugh: There is a link: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?SpindleOrient
05:52 PM Tom_L: ahh, my link was ....SpindleOrientation instead of SpindleOrient
05:53 PM Tom_L: under advance config, spindle control
05:55 PM andypugh: Tom_L: Yes, we should probably combine them
05:55 PM Tom_L: i'm not finding it on the menu
05:55 PM Tom_L: but i'm half blind
05:56 PM andypugh: It’s not on the menu, but I know to search for it
06:15 PM Cromaglious_: ugh... trying to find the Republican list of candidates for the water board...
06:15 PM XXCoder: huh?
06:16 PM Cromaglious_: a local election for our water district board members...
06:16 PM andypugh: Didn’t you outlaw water-boarding? Thoigh there are some Republicans i wouldn’t mind trying it.
06:17 PM XXCoder: ah board on sourcing clean and safe to drink water. aka fracked water
06:18 PM andypugh: (Actually, to be honest, I couldnt’t name any republicans other than Trump, Palin and McCain. My last stement was purely an excercise in ill-informed humour)
06:38 PM Tom_L: andypugh, the position PID component is only used at a low rpm right?
06:38 PM Tom_L: how does one go about tuning for that?
06:39 PM andypugh: Only when orient is active
06:39 PM andypugh: Err, well, I don’t know. I have never actually done it. ;-)
06:40 PM Cromaglious_: ok... called one of the candidates and he told me his recommendations.
06:40 PM Tom_L: also how do you tell the difference between velocity and position PID?
06:40 PM andypugh: I know HAL and Control is my job, but I have no toolchanger so haven’t actually had to make it work.
06:41 PM Tom_L: i have none either, just wanted to test it and see how far i got
06:41 PM Tom_L: i figure i should be able to get orient to work
06:42 PM andypugh: Tom_L: A spindle velocity PID will tend to be mainly I-gain, and a position PID will tend to be mainly P-gain
06:42 PM Tom_L: i never really knew how to tell the difference...
06:42 PM Tom_L: i may start with the settings used for velocity mode?
06:42 PM andypugh: (Actually, spindle velocity will mainly be FF1 with I-gain to correct, for a velocity-mode servo)
06:44 PM Tom_L: does orient give it a default spindle speed to achieve as part of it's output?
06:45 PM andypugh: No
06:45 PM andypugh: (It can’t know)
06:45 PM Tom_L: where does the S come from for this then?
06:46 PM andypugh: I orient mode there is no S. The spindle becomes a position servo
06:46 PM Tom_L: ok.. i guess
06:46 PM andypugh: Which is why it is connected to a completely separate PID controller
06:47 PM Tom_L: right
06:50 PM Tom_L: i think i see.. the encoder.n.position goes to the pid.n.feedback as a position
06:52 PM Tom_L: and it gets the target position from orient.n.command
06:55 PM Tom_L: why didn't you connect orient.n.poserr to pid.n.error-previous-target ?
07:10 PM pcw_mesa: pid.n.error-previous-target is a flag to the PID loop to use the previous position (one servo thread time ago) as the command rather than the currert one
07:11 PM pcw_mesa: normally its something that's set to a constant not something you change dynamically
07:11 PM Tom_L: it was left unused in his diagram
07:12 PM Tom_L: would there need to be a place to indicate encoder counts vs angle? or encoder counts per degree or such..
07:15 PM andypugh: That ends up as part of the PID gains
07:16 PM andypugh: (well, and part of the spindle encoder setup)
07:18 PM Tom_L: hm2_xxx.n.encoder.n.scale
07:21 PM andypugh: But that needs to be set up at 1 per rev for spindle-synch stuff anyway
07:21 PM phiplii: how roughly do steppers run with microstepping off?
07:22 PM phiplii: when going at slow speed, can you see/hear the individual clunks?
07:23 PM phiplii: almost like you've wired it wrong... but a little bit too smooth for that?
07:25 PM pcw_mesa: full step can ring like a bell every step
07:25 PM pcw_mesa: boing boing boing boing....
07:26 PM pcw_mesa: steppers are noisy and especially noisy with full or 1/2 stepping
07:27 PM phiplii: plugged a stepper into a new board to test something... jumpers for setting microstepping are up stairs so I didn't bother...
07:28 PM phiplii: actually think it is the first time I've ever run a motor without any microstepping!
07:28 PM * phiplii potters off to find some jumpers to compare the difference...
07:28 PM phiplii: (btw thanks for the answer / reassurance pcw_mesa!)
07:29 PM XXCoder: run a music using 6 steppers at 1 2 4 8 16 and 32 microsteps. lol
07:31 PM * phiplii looks up the jumper logic for all the different microsteps...
07:32 PM phiplii: can only go up to 16 until the slightly better plug in drivers arrive...
07:32 PM phiplii: :)
07:34 PM XXCoder: :)
07:34 PM XXCoder: 3d printer drivers can go to 64 I think, or maybe 32
07:34 PM XXCoder: no sideload to worry about, though im sure precision there's some loss
07:34 PM phiplii: compared to the timing belts they tend to use?
07:35 PM XXCoder: lol thats quite less precise than ballscrews eh
07:37 PM phiplii: prices keep dropping though
07:37 PM phiplii: no reason really why they shouldn't be as cheap as regular inkjet printers
07:37 PM XXCoder: chinese money has been rising so they was lowering prices and making more printer
07:37 PM phiplii: someday
07:42 PM phiplii: glad I have a 100x pack of jumpers
07:43 PM phiplii: 12 needed to set all four channels to x16
07:43 PM XXCoder: lol
07:51 PM andypugh: My 3D printer died today after 200 hours of printing
07:52 PM andypugh: (thermocouple failure). Comfortingly the system noticed and shut down.
07:52 PM XXCoder: if it cost $200 its a dollar per hour
07:52 PM XXCoder: thankfully thats fail close
07:52 PM XXCoder: fail open'd cause fires
07:53 PM andypugh: It cost £250. But 5 new thermocouples were £5
07:53 PM XXCoder: termocople eh not termoresistor
07:53 PM andypugh: But it did die 80% through a 20 hour print, and 80% through a £27 spool of filament
07:54 PM XXCoder: ow
07:54 PM XXCoder: cant recover?
07:55 PM phiplii: I should head to bed
07:55 PM phiplii: night folks
07:55 PM XXCoder: later
07:56 PM andypugh: My printer homes to the top, so can’t re-start
07:59 PM CaptHindsight: time to change to a sane controller
08:00 PM CaptHindsight: repcrap software dev: oh yeah I never thought about trying to recover a print if some error occurs 80% of the way into it
08:00 PM CaptHindsight: after all it's such a high quality machine, what could go wrong :)
08:02 PM malcom2073_: Unfortunatly, things like filament motion detection and the like are patent encumbered
08:02 PM malcom2073_: So you've gotta DIY it if yo uwant it on your hobby machines
08:05 PM CaptHindsight: how many repcraps can start from some random line of G-code vs just start at the beginning?
08:05 PM malcom2073_: All of them afaik
08:06 PM malcom2073_: Pronterface, rep-host, even replicatorg iirc
08:06 PM CaptHindsight: except for andys
08:06 PM malcom2073_: You gotta know *how* to do it, it's not as easy as "click a button and go", since it doesn't know where it stopped
08:12 PM XXCoder: http://www.mapleridgenews.com/buzz/photo-see-the-b-c-smoke-from-space/
08:12 PM XXCoder: been smokey around here for while now
08:13 PM andypugh: Well, mine is especially rubbish, it’s an X3G printer, which means it expects the print file to be in raw steps
08:13 PM andypugh: That said, it makes stuff
08:14 PM andypugh: The plan is to sink the model through the bed by the right amount, print the rest and glue it on.
08:15 PM CaptHindsight: pla glue
08:16 PM XXCoder: or abs goo. depends on whats its made from
08:16 PM XXCoder: andypugh: I really want SLS printer lol but so pricy.
08:17 PM andypugh: FDM is rather slow
08:17 PM CaptHindsight: there are some under $300
08:17 PM XXCoder: SLS printer under $200?
08:17 PM XXCoder: *300
08:17 PM CaptHindsight: make your own using an old DLP projector
08:17 PM andypugh: I rather like the DLP printers
08:18 PM XXCoder: DLP is new to me
08:18 PM andypugh: But DLP is not SLS
08:18 PM CaptHindsight: http://linuxgizmos.com/tis-99-dlp-pico-projector-board-connects-to-beaglebone-black/
08:18 PM CaptHindsight: heh, screen is too far
08:18 PM XXCoder: digital light processing hm
08:18 PM CaptHindsight: yeah SLS gets a bit more pricey unless you can get a cheap laser
08:19 PM CaptHindsight: whats a cheap chinese 30W laser tube go for?
08:19 PM CaptHindsight: $300?
08:20 PM andypugh: This is a DLP made by someone I know. With servos and LinuxCNC. https://www.youtube.com/watch?v=FscYq5uCys0
08:20 PM XXCoder: theres 30w diodes on ebay now, forgot what price was
08:20 PM CaptHindsight: add a z-axis and powder spreader to a cheap laser cutter
08:20 PM Tom_L: you don't need inert gas shield?
08:21 PM Tom_L: i suppose that's for metal only
08:21 PM CaptHindsight: depends on the material
08:21 PM CaptHindsight: we do for many plastics
08:21 PM Tom_L: why for plastic?
08:22 PM XXCoder: alum would need sheild as its quite reactive to oxygen
08:22 PM CaptHindsight: plastics like to burn as well
08:22 PM XXCoder: Ti probably is same
08:22 PM CaptHindsight: especially as small particles, like a powder
08:22 PM Tom_L: yeah they use ALOT of intert gas here when printing Ti
08:23 PM Tom_L: they've got like 12 large size tanks hooked to the printer
08:23 PM CaptHindsight: for metal if it's large
08:23 PM CaptHindsight: I use a 300cu ft tank
08:23 PM CaptHindsight: keep a slight positive pressure in the oven
08:24 PM CaptHindsight: they might use lots of gas if their oven isn't well sealed
08:25 PM CaptHindsight: traded easier to design oven and build chamber vs more inert gas lost
08:27 PM CaptHindsight: http://www.3ders.org/articles/20170717-much-hyped-3d-printing-company-desktop-metal-raises-115m-from-google-ge-others.html
08:28 PM CaptHindsight: ^^ metal powder with inkjet binder, then sintered in oven
08:28 PM CaptHindsight: no inert gas needed
08:30 PM CaptHindsight: andypugh: what do you think of sintered metals that are >50% voids?
08:31 PM andypugh: That’s a very open question
08:32 PM andypugh: I wouldn’t want my sister to marry one…
08:33 PM andypugh: But from a mechanical point of view, a metal of half the density in a part made larger to compensate is a win.
08:33 PM andypugh: (sometimes)
08:35 PM CaptHindsight: he they changed their pics
08:35 PM CaptHindsight: a week or two ago they had some pics from under the microscope
08:36 PM CaptHindsight: they looked like 80% voids
08:36 PM Tom_L: not a water vessel
08:39 PM CaptHindsight: https://img.newatlas.com/desktop-metal-3d-printers-1.jpg?auto=format%2Ccompress&fit=max&h=670&q=60&w=1000&s=e007e31fb3614f6b1fb9afb8ce886806
08:39 PM CaptHindsight: found it
08:39 PM CaptHindsight: andypugh: ^^
08:39 PM Valen: I like the electron beam welding version of a metal 3d printer
08:40 PM Valen: Downside potentially is massive xray radiation lol
08:40 PM CaptHindsight: whatever happened to the open source e-beam project?
08:40 PM Valen: haven't heard of that?
08:40 PM CaptHindsight: get the lead out
08:41 PM XXCoder: andypugh: is dlp same as SLA?
08:41 PM andypugh: CaptHindsight: That could be a useful material, if you know that is what you have.
08:41 PM CaptHindsight: you can use a DLP for SLA
08:41 PM CaptHindsight: you can also use a laser + galvos
08:41 PM CaptHindsight: or laser + DLP
08:41 PM CaptHindsight: or LED + LCD
08:41 PM XXCoder: so not quite same
08:41 PM andypugh: SLA? I know SLS
08:42 PM XXCoder: sterolithography
08:42 PM CaptHindsight: Valen: http://reprap.org/wiki/MetalicaRap
08:42 PM XXCoder: that video is awesome
08:42 PM CaptHindsight: radcure resins plus a light source for selectively curing
08:43 PM andypugh: Valen: https://www.youtube.com/watch?v=Fr_PneeyO34
08:44 PM CaptHindsight: andypugh: if it's 80% open then it could be copper that floats on water
08:44 PM Valen: I think the biggest issue with all this stuff is probably going to be the legal stuff from lots of randoms getting hold of powdered metals
08:44 PM CaptHindsight: or for unsinkable steel boats
08:45 PM andypugh: it looks to be open-cell, so no.
08:45 PM andypugh: But honeycomb is already widely used.
08:45 PM CaptHindsight: Valen: what about the worlds shortage of metal yoda heads?
08:45 PM evilren: SLA is awesome
08:46 PM evilren: every 3d print i dealt with in an engineering lab was pretty shit, except SLA
08:46 PM Valen: that and people killing their downstairs neighbours with x-rays
08:46 PM andypugh: That is why my printer broke! I didn’t make a Yoda head!
08:46 PM evilren: FDM and objet style printing are great for cosmetics and shit for most everything else
08:47 PM CaptHindsight: objet = polyjet?
08:47 PM evilren: and by FDM, i mean shit that a $30k stratasys printer pops out
08:47 PM CaptHindsight: inkjet + photopolymer
08:47 PM evilren: objet is a company, i think like $100k+ per machine, its like inkjet heads
08:48 PM evilren: yeah
08:48 PM t12: objets stink :(
08:48 PM evilren: yes and some people get a rash
08:48 PM evilren: and the material is crumbly compared to injection mold
08:48 PM t12: the support material/wash station thing is :(
08:48 PM andypugh: I am using FDM to make foundry patterns. My final parts are cast iron
08:48 PM evilren: its more homogeneous than FDM, but its still pretty shit
08:48 PM evilren: screw bosses wont hold a screw
08:48 PM CaptHindsight: Objet makes money and they don't care about the lousy prints
08:49 PM evilren: objet is great for cosmetic shit
08:49 PM CaptHindsight: well objet offers limited resins
08:49 PM evilren: as far as material properties, FDM and objet stuff is a joke
08:49 PM CaptHindsight: it actually can be much better
08:49 PM evilren: that shit is pricey and its not much better
08:49 PM XXCoder: andypugh: thats one of very handy uses of printer yeah. I saw video where guy used one to make very nice lead hammer
08:50 PM XXCoder: he printed the handle and holder, and seperate mold for lead part of hammer
08:50 PM XXCoder: cast it in alum, then use mold made by other to cast lead
08:50 PM CaptHindsight: I use inkjet with a water soluble photopolymers to make investment castings and mandrels for electroforming
08:52 PM XXCoder: this video. https://www.youtube.com/watch?v=rN09nj2Vu8g
08:52 PM CaptHindsight: evilren: objet sells their resins for hundreds of $/L since they can
08:53 PM CaptHindsight: they offer a similar resin that melts out like a wax
08:53 PM evilren: they offer a lot of diff materials
08:53 PM CaptHindsight: but their inkjets are really slow
08:53 PM XXCoder: andypugh: should watch that video, its pretty awesome
08:53 PM evilren: including rubber like and abs like materials
08:54 PM CaptHindsight: t12: what's up with their wash station?
08:54 PM evilren: its expensive and not great for much except concepts, the cost of thick wall designs to make objet prints usable is crazy
08:54 PM t12: its just annoying as hell
08:54 PM t12: like a little glovebox with a pressure washer
08:54 PM t12: and a bucket
08:55 PM t12: and a winshield wiper
08:55 PM evilren: haha its goody
08:55 PM evilren: *goofy
08:55 PM CaptHindsight: heh
08:55 PM evilren: the wiper
08:55 PM t12: http://www.3dprinterclassifieds.com/3d-printers-classifieds/wp-content/uploads/2015/11/992185-375x500.jpg
08:55 PM CaptHindsight: i used to work with objets chief chemist
08:55 PM evilren: and yeah everything has a funny smell
08:55 PM t12: i worked a contract that has one
08:55 PM t12: i guess it worked well enough they were doing plastic prototypes for mass produced molds
08:56 PM CaptHindsight: photopolymers generally have an odor
08:56 PM CaptHindsight: some are worse than others
08:57 PM Adamj12b-mobile: andypugh Im trying to add an mpg on a 7i84 encoder channel 1 and im getting an error when loading the profile of "Pin 'hm2_5i25.0.7i84.0.2.enc0.count' does not exist. Do you think this an issue with pncconf?
08:57 PM CaptHindsight: they still use Ricoh gen 3 heads
08:57 PM CaptHindsight: http://www.rpsa.ricoh.com/
08:58 PM andypugh: XXCoder: That’s a nicely made video, but what he is doing is fairly ordinary.
08:58 PM andypugh: And CA glue is a lo t more bother than http://www.easycomposites.co.uk/#!/patterns-moulds-and-tooling/pattern-making/composite-pattern-coat-primer.html
08:59 PM andypugh: Adamj12b-mobile: I don’t know if pcconf knows how to set smart-serial modes
09:00 PM andypugh: Adamj12b-mobile: Do you see a sserial_port_0=020xxx or similar in the Hal or Ini files?
09:02 PM XXCoder: it is nicely made, that guy is awesome on that.
09:03 PM CaptHindsight: t12: inkjet + metal powder https://techcrunch.com/2017/07/18/desktop-metal-gets-115-million-in-funding-to-deliver-metal-3d-printing-for-manufacturing/
09:03 PM Adamj12b-mobile: andypugh Nope. Only one that shows up is for the 7i77 i believe. "sserial_port_0=000xxx"
09:04 PM andypugh: That’s close
09:04 PM andypugh: What are the 7i84 pins called? 0.1 or 0.2?
09:05 PM CaptHindsight: inkjet + resin and sand would do a much better job for solid parts
09:05 PM CaptHindsight: print the molds for sand casting
09:06 PM andypugh: CaptHindsight: We have machines at work that do that
09:06 PM andypugh: But, if it takes 4 hours for one part, it takes 8 hours for two.
09:06 PM Adamj12b: net jog-x-pos <= hm2_5i25.0.7i84.0.2.input-00
09:07 PM andypugh: Whereas making a sand mould from a conventional pattern takes about 10 minutes.
09:07 PM Adamj12b: so 0.2?
09:07 PM CaptHindsight: andypugh: it just needs faster and more printheads
09:08 PM andypugh: Adamj12b-mobile: You need to work out which channel the 7i84 is on, and change the mode of that channel
09:09 PM andypugh: I the 7i84 pins contain “0.2” then ir is sserial_port_0=002xxx to set the 7i84 to mode 2
09:09 PM andypugh: (google “7i84man” to get the manual)
09:13 PM Adamj12b: Im looking now.
09:14 PM andypugh: Look for “process data modes”
09:14 PM Adamj12b: I also found a thread talking about the same/similar issue on a 7i76. PCW mentions there was an error in the manual and mode 2 is what is actually wanted.
09:16 PM andypugh: Where the smart-serial cards are concerned the 7i76 or 7i77 (or 7i44 or anything else) is irrelevant
09:20 PM Adamj12b: Well it was as simple as changing that sserial_port_0=000xxx to 0=002xxx fixed it.
09:21 PM BeachBumPete: hey folks happy Friday evening hehe
09:21 PM andypugh: The fix is easy, the trick was to ask in the right place at the right time
09:21 PM XXCoder: yeserday was my friday heh
09:21 PM Adamj12b: I am able to see hm2_5i25.0.7i84.0.0.enc0.count increment.
09:22 PM Adamj12b: Thanks for the nudge in the right direction.
09:22 PM andypugh: Set the scale and connect it where you need it and it should work
09:24 PM Adamj12b: yea...i have to figure that one out next.
09:26 PM Adamj12b: How do the HAL files get parsed? Can something like the line that corrected this be placed in the custom.hal file to overwrite the wrong value as it is called after the main hal file?
09:27 PM andypugh: No, the “loadrt” is a one-off.
09:28 PM andypugh: You can unlink pins and delete signals in the subsequent hal files, but its easier now to accept that pnccon has done its job and take ownership of the HAL and INI files and hand-edit
09:29 PM Adamj12b: That is the plan, but im not quite there yet. Im still "building" the control in my living room. It is just a test configuration, but I know what needs to be done to fix that one issue.
09:30 PM Adamj12b: I have finished most of the wiring and ive moved onto the console. Hopefully to install everything in the machine Sunday.
09:31 PM andypugh: When you said “I am able to see …enc0.count increment” I get the impresion that you had got the hang of HAL
09:32 PM BeachBumPete: Damn you are making me realize how ridiculously LONG it is taking me to do my CNC lathe retrofit... Curse you Adamj LOL
09:33 PM Adamj12b: BeachBumPete: :P
09:33 PM BeachBumPete: are you running the machine on 3 phase?
09:34 PM Adamj12b: Trust me, This feels like eternity. I started on the mill a month ago with a plan. An hour or 2 a night is all I get if Im lucky.
09:34 PM Adamj12b: Nope. The VFD will take single as well as the drives
09:34 PM BeachBumPete: BAHAHAHAHA
09:34 PM Adamj12b: servo drives*
09:34 PM BeachBumPete: I started on this over a year ago now
09:35 PM BeachBumPete: altho I did happen to sell my house and move and relocate to Florida and and and
09:35 PM Adamj12b: The router that the console was built for was started 3-4 years ago...
09:35 PM BeachBumPete: thats cool my machines will be entirely single phase input
09:35 PM XXCoder: wow bees is starting to turn corner and growing population again
09:36 PM XXCoder: hopefully that thrend stays going
09:36 PM BeachBumPete: I did plan to spend some time this weekend out there working on the Standard Modern tho...
09:38 PM Adamj12b: Single Phase was one reason I went with the DMM stuff
09:38 PM Adamj12b: You can also retrofit other motors by adding their encoders to them.
09:39 PM BeachBumPete: I ALMOST went with the DMM stuff on the Cinci but they did not make that size motors for it.
09:39 PM Adamj12b: I converted 2 - 400W Yaskawa servos to run with 2 Dyn4 drives on a small router project.
09:40 PM andypugh: I have had a disasterous few days where tech is concerned. I put a new battery in my iPhone on wednesday, which made things worse and I broke the screen, I fixed the screen but the battery has 5 seconds life. Then my Mac disk failed, that’s 3 hours to go on the restore from backup, Then the 3D printer thermocouple failed 18 hours into a print.
09:40 PM BeachBumPete: jeez well... APPLE
09:41 PM XXCoder: ouch heh
09:41 PM Adamj12b: BeachBumPete: 3d printed encoder cover. https://goo.gl/photos/oqvicSUTxAfR3Foj9
09:41 PM Adamj12b: andypugh: Thats some bad luck...
09:41 PM BeachBumPete: that looks great man
09:42 PM BeachBumPete: go figure an actual useful part from a 3d printer ;)
09:42 PM XXCoder: BeachBumPete: didnt you see cast hammer video from me? heh
09:44 PM BeachBumPete: Adamj12b do you have a pinout for the DYN4's somewhere for that high density connector? I am waiting on the DB25 cables
09:45 PM Adamj12b: Yes. Let me put it in a google doc and Ill send it over.
09:46 PM BeachBumPete: YOU SIR ARE A GOD!!!
09:46 PM Adamj12b: ok...noob question...How do I see how fast an axis is traveling?
09:46 PM BeachBumPete: what do you mean?
09:47 PM Adamj12b: like what IPM an axis is traveling at.
09:47 PM andypugh: ….encoder.NN.velocity
09:47 PM andypugh: (units per second)
09:48 PM andypugh: Technically that’s the joint velocity, not an axis velocity.
09:48 PM BeachBumPete: are you trying to set the max velocity or just test to see what you are getting?
09:49 PM andypugh: For a cartesian machine that is a distinction without a difference
09:49 PM Adamj12b: Just testing. It doesnt seem like its going fast enough.
09:49 PM BeachBumPete: I think if you just do a MDI rapid you can see the velocity on the display no?
09:51 PM Adamj12b: Im using Axis just doing a g01 Z-5 F100/F200 and there is no discernable difference between the 2.
09:51 PM Adamj12b: I dont see any velocity on screen. Just actual pos and DTG
09:51 PM BeachBumPete: is your max velocity slider maxed out and what is it set to?
09:53 PM BeachBumPete: as I recall the velocity is only there while it is actually travelling and then disappears. It is right under the position and DTG
09:53 PM Tom_L: andypugh what did you do to piss Murphy off?
09:54 PM XXCoder: he forgot the murphy dance
09:54 PM XXCoder: so yeah
09:57 PM Adamj12b: BeachBumPete: Things are starting to make sense. In my INI, max_linear_velocity = 1.0, however for the axis, max_velocity = 5
09:59 PM BeachBumPete: ah
10:00 PM BeachBumPete: I am jealous of your ability to create a complete mockup of the system on your living room floor and actually make it work by the way. ;)
10:01 PM BeachBumPete: I gutted my entire closet sized electronics cabinet on the Cincinatti and spent a good while inside it to the point where it started to feel like a coffin ;)
10:01 PM BeachBumPete: then I needed help to get it kick started
10:02 PM * Tom_L kicks BeachBumPete
10:02 PM BeachBumPete: but thankfully with the help of several kindhearted souls in this very room it came to life not unlike the Frankenstein Monster
10:02 PM BeachBumPete: hey there's one now!
10:02 PM Adamj12b-mobile: BeachBumPete Coffee table. :p also, no kids helps being able to leave this stuff out.
10:02 PM Tom_L: BeachBumPete, let's get your carousel working
10:02 PM BeachBumPete: how'd ya know I had kids hehe
10:02 PM BeachBumPete: Tom_L Bless you my son
10:03 PM BeachBumPete: I ALMOST bought a used manual lathe yesterday because I was starting to think I would never get the CNC lathe operational
10:03 PM BeachBumPete: luckily it was a rusty bastard
10:03 PM BeachBumPete: so for the time being the shop is quiet and the wallet is NOT empty
10:04 PM Tom_L: i'm gonna try to get spindle orient working on my sherline as a test
10:04 PM Tom_L: even though i don't have a tool changer
10:04 PM BeachBumPete: Tom_L fortunately I DO have one hehe
10:04 PM Tom_L: not a working one
10:05 PM BeachBumPete: I STILL have not gone down the road of getting the spindle control switched from Modbus to analog so I can actually TRY to orient
10:05 PM BeachBumPete: and for the record NO it is not a working one
10:05 PM BeachBumPete: pathetic I know
10:05 PM Loetmichel: BeachBumPete: rusty? as in "challenge" rusty or as in "scrapworthy" rusty?
10:05 PM BeachBumPete: whats it been two years or more
10:05 PM Tom_L: have you powered it manually ever?
10:06 PM BeachBumPete: Loetmichel that is a damn good question
10:06 PM BeachBumPete: Tom_L what?
10:06 PM Tom_L: the carousel
10:06 PM BeachBumPete: Loetmichel actually it is a 12x36 asian like I used to have for over a decade only a bit older model
10:07 PM BeachBumPete: but it looked like it was left in a damn shop so the chuck and the carriage bare bits were kinda....RED
10:07 PM BeachBumPete: Tom_L actually all of the carousel controls are all fully functional
10:07 PM BeachBumPete: I can move the carousel around
10:07 PM Loetmichel: nice size. little bigger than my little one... even bigger than the D480 i have ;)
10:07 PM BeachBumPete: I can push it in towards the spindle and retract it
10:07 PM Loetmichel: (the little one is a C0)
10:08 PM BeachBumPete: I can see the I/O in HAL
10:08 PM Loetmichel: but?
10:08 PM BeachBumPete: Loetmichel honestly I was quite content with that lathe I should have never sold it but I HAD to have a bigger CNC lathe LOL
10:08 PM Loetmichel: thats no reason to sell the old one
10:09 PM BeachBumPete: where were you when I needed you ;)
10:09 PM Loetmichel: i have bought an Optimum D480 to eventually CNC it... but still use the small one i bought new... because the CNC-ing didnt happen yet ;)
10:10 PM Loetmichel: for reference: the little one: http://www.cyrom.org/palbum/main.php?g2_itemId=520&g2_imageViewsIndex=1
10:10 PM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=14058&g2_imageViewsIndex=1 <- in use ;)
10:11 PM Loetmichel: and the D480: http://www.cyrom.org/palbum/main.php?g2_itemId=11462&g2_imageViewsIndex=1
10:11 PM BeachBumPete: nice
10:11 PM BeachBumPete: those look like the 7x12 lathes
10:12 PM BeachBumPete: and perhaps the larger Grizzly one everyone was buying recently
10:12 PM BeachBumPete: G0480 or something like that
10:12 PM Loetmichel: its 480mm between centers
10:12 PM Loetmichel: so more like a 7x15 ;)
10:12 PM BeachBumPete: so whats that in American like 20?
10:12 PM Loetmichel: 18
10:12 PM BeachBumPete: hehe
10:13 PM BeachBumPete: they wanted like a grand for the 12x36 which is a good deal but it looked a bit rought
10:13 PM BeachBumPete: -t
10:13 PM Loetmichel: 12*36 sounds like soemthing we would call "machinist lathe" over here
10:14 PM BeachBumPete: probably
10:14 PM BeachBumPete: I WANT a 14x40 manual
10:14 PM Loetmichel: 300mm above bed and 900mm between centers.
10:14 PM BeachBumPete: but for some reason everyone that has one thinks they were dipped in Gold
10:14 PM Loetmichel: and i gutess about half a ton to a ton?
10:15 PM BeachBumPete: yeah the 12x36 was a 1000lbs
10:15 PM BeachBumPete: without the stand I think
10:15 PM Loetmichel: yeah, sounds familiar.
10:15 PM BeachBumPete: honestly I made so much schtuff on that thing for over a decade it was not funny
10:15 PM BeachBumPete: I really miss it
10:15 PM Loetmichel: i was at a friends (across the country) recently, fixing his selfmade genset.. he has a NICE lathe now...
10:16 PM BeachBumPete: I sold it for more than I bought it for
10:16 PM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=16759&g2_imageViewsIndex=1 (background middle picture)
10:17 PM Loetmichel: its about 15"*50" or in that bracket
10:17 PM BeachBumPete: I had a 16x60 for awhile in Tennessee
10:17 PM BeachBumPete: but I actually sold it because I used the 12x36 more
10:17 PM BeachBumPete: the bigger one was kind of a beast
10:18 PM Adamj12b: 12x36 is a good size.
10:19 PM BeachBumPete: it was a good size
10:19 PM BeachBumPete: honestly that is why I think the 14x40 would be perfect
10:20 PM BeachBumPete: for more things anyway
10:20 PM BeachBumPete: a bit more power and capacity
10:20 PM Loetmichel: that guy is cool though... wants to emigrate to a cap verde island with bad power... so he buys a 120kVA generator and slaps an old Mercedes diesel he "had laying around" to it... yes that frame is all selfmade..
10:20 PM BeachBumPete: yet still small enough to just walk up to and run
10:20 PM Loetmichel: he isnt that good with electronix so i came over to help him there
10:22 PM Loetmichel: was only about 400km across germany ;)
10:23 PM BeachBumPete: https://orlando.craigslist.org/tld/d/harrison-lathe-toolroom-13/6246418160.html
10:23 PM BeachBumPete: that one is not far from me
10:23 PM BeachBumPete: but jeez thats spensive I think
10:24 PM BeachBumPete: any of you guys have southbend lathes?
10:25 PM Tom_L: iirc my bud's may be a southbend
10:25 PM Tom_L: but i wouldn't swear to it
10:25 PM BeachBumPete: https://orlando.craigslist.org/tls/d/turn-pro-lathe-for-sale/6227269179.html This one's a beauty
10:26 PM BeachBumPete: I wanted to spend about a quarter of that much tho hehe
10:26 PM Tom_L: his is an older one
10:27 PM BeachBumPete: there are probably twenty older south bend lathes in various levels of condition all around south Florida... every one is asking 2k LOL
10:27 PM Tom_L: i'm not positive what it is but i sure like using it
10:28 PM BeachBumPete: oh yeah
10:28 PM BeachBumPete: why?
10:28 PM Tom_L: it's a real workhorse
10:28 PM Tom_L: nice footbrake etc
10:28 PM BeachBumPete: oh that is nice
10:28 PM Tom_L: he's got gears to do 3tpi :D
10:28 PM BeachBumPete: do they have smallish spindle bores?
10:28 PM Tom_L: i'm the only one that hav used it
10:29 PM Tom_L: i'm not sure the bore size
10:29 PM Tom_L: his may be like an 8 or 10" head
10:29 PM BeachBumPete: is it a heavy 10?
10:30 PM skunkworks_: our ball screws on the K&T are 3tpi ;)
10:30 PM Tom_L: it takes a grown man to change it
10:30 PM BeachBumPete: https://tampa.craigslist.org/pnl/for/d/lathe-12-inch/6247283802.html
10:30 PM BeachBumPete: to change what?
10:30 PM Tom_L: the chuck
10:31 PM BeachBumPete: so you have help then? ;)
10:31 PM Tom_L: hardly
10:31 PM BeachBumPete: I used to use a piece of plywood on the ways and a rubber mallet on the D1-4 to remove
10:32 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/temp/thread1.jpg
10:32 PM Tom_L: he did that for me
10:32 PM Tom_L: about 1.5"
10:32 PM BeachBumPete: Tom_L were you serious about my toolchanger or just bustin my chops hehe
10:32 PM Tom_L: i'm working on getting orient working on mine
10:32 PM BeachBumPete: looks nice... stainless?
10:32 PM Tom_L: aluminum
10:32 PM BeachBumPete: ah.... fair bit O chatter there tho
10:32 PM Tom_L: i wasn't caring about the surface finish
10:33 PM Tom_L: we kinda rushed it out
10:33 PM BeachBumPete: gotcha
10:33 PM Tom_L: it was fun picking up the thread each time
10:33 PM Tom_L: it rips thru that pretty quick
10:33 PM BeachBumPete: why did you have to pick it up each time?
10:33 PM Tom_L: no way you're gonna cut that in one pass
10:34 PM BeachBumPete: of course not
10:34 PM BeachBumPete: but why would you have to pick it up?
10:34 PM Tom_L: if you didn't disengage the feed it would hit the head before you could stop it
10:34 PM BeachBumPete: oh ok
10:35 PM roycroft: or cut the thread from left to right
10:35 PM BeachBumPete: I usually cut threads pretty slow especially deep ones
10:35 PM Tom_L: roycroft, how you gonna do that and feed the cutter in each time?
10:35 PM BeachBumPete: one nice thing about that 12x36 it was a gear head and in slow/low it had lots of torque
10:36 PM Tom_L: BeachBumPete he had it in back gear but even so it moves right along at 3tpi
10:36 PM BeachBumPete: I used to turn off the lathe and creep in then turn it back on if I was not disengaging on each pass
10:36 PM BeachBumPete: but most threads I setup an indicator at the start point and then engaged with the thread dial
10:37 PM roycroft: i haven't done it myself, but folks say they run the lathe backwards to do it
10:37 PM BeachBumPete: you certainly can I did it once or twice
10:37 PM BeachBumPete: flip the tool over
10:37 PM roycroft: yup
10:37 PM Tom_L: it may be different with a finer pitch thread
10:38 PM roycroft: my lathe spindle is 8tpi
10:38 PM Tom_L: you just don't have much time to think about it
10:38 PM BeachBumPete: yup that is a coarse one
10:38 PM Tom_L: roycroft this is 3
10:38 PM BeachBumPete: should have started with a longer piece ;)
10:38 PM Tom_L: naw
10:38 PM roycroft: and i know what you mean - when i was trying to cut a dummy spindle i hada really hard time disengaging at the right time
10:38 PM Tom_L: i did make 2 though
10:38 PM BeachBumPete: would be cake on a CNC lathe LOL
10:39 PM Tom_L: he said it's the only time he's used those gears
10:39 PM BeachBumPete: wish I had one
10:39 PM BeachBumPete: GAAAHHHHHHH
10:39 PM Tom_L: you have parts of one
10:39 PM BeachBumPete: yup almost all of em' hehe
10:39 PM BeachBumPete: still need the spindle drive
10:39 PM roycroft: my lathe only goes down to 60rpm
10:39 PM roycroft: 20rpm would have made it a lot easier
10:40 PM BeachBumPete: I am gonna make a concerted effort to get something done on that monster tomorrow...
10:40 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/temp/smilekat.jpg
10:40 PM roycroft: i'm going to make a concerted effort to do something productive tomorrow
10:41 PM roycroft: we've had record high temperatures all week
10:41 PM BeachBumPete: for tonight its time for bed. I will have a look at that orient/spindle drive analog stuff tomorrow too
10:41 PM Tom_L: BeachBumPete
10:41 PM BeachBumPete: yeah
10:41 PM Tom_L: look at the vismach sim
10:41 PM roycroft: my schedule has basically been get up, go to work, endure the heat, go home, eat dinner, try to sleep
10:41 PM Tom_L: it's got what you need in it
10:41 PM roycroft: but it's starting to cool off a wee bit
10:41 PM BeachBumPete: vismach?
10:41 PM roycroft: and the smoke is going away
10:42 PM Tom_L: yes
10:42 PM Tom_L: it's in the configs directory
10:42 PM BeachBumPete: OK
10:42 PM Tom_L: but
10:42 PM Adamj12b: what kind of spindle drive?
10:42 PM BeachBumPete: is it something new?
10:42 PM Tom_L: since that, andy's written the carousel comp
10:42 PM Tom_L: but you still need orient
10:42 PM BeachBumPete: yeah I saw that
10:44 PM BeachBumPete: Adamj12b mine is a Hitachi WJ-200LF or something like that
10:44 PM BeachBumPete: WTH?
10:45 PM Tom_L: BeachBumPete, also http://wiki.linuxcnc.org/uploads/orient.svg
10:45 PM Tom_L: ctrl + to zoom
10:45 PM Tom_L: print that and look it over
10:46 PM BeachBumPete: OK but I just got a new printer and right now its chinese arithmetic getting it to work
10:46 PM BeachBumPete: I will be back on here tomorrow
10:47 PM BeachBumPete: thanks Tom
10:47 PM Tom_L: andy did that diagram
10:47 PM BeachBumPete: oh thanks Andy ;)
10:47 PM BeachBumPete: I think he hates me like poison now tho hehe
10:47 PM Tom_L: i think it follows the vismach code example pretty close
10:48 PM Tom_L: what makes you say that?
10:48 PM BeachBumPete: just some political chat BS
10:49 PM BeachBumPete: well Gn8 folks have a good evening.
10:50 PM * roycroft hates some people's political ideas but doesn't hate the people
11:09 PM Tom_L: can you have 2 'net' lines with the same signal?
11:09 PM Tom_L: ie: net spindle-on motion.spindle-on
11:10 PM Tom_L: then later in the hal:
11:10 PM Tom_L: net spindle-on motion.spindle-on
11:10 PM Tom_L: i'm not getting an error
11:10 PM Tom_L: i just now discovered the duplicate
11:10 PM Tom_L: one maps to an enable signal and the other to an IO pin