#linuxcnc Logs

Jul 18 2017

#linuxcnc Calendar

12:32 AM LeelooMinai: Hmm
12:34 AM LeelooMinai: So, cloned old SSD (Samsung 840 Pro) into new one (Samsung 960 EVO, a NVMe/PCIe one)
12:34 AM LeelooMinai: And got it to boot finally, and it compares like that, old vs new: http://i.imgur.com/ZjJuO2x.png
12:35 AM LeelooMinai: So I guess, good - not yet sure if I have all optimized, but "it works"
12:37 AM LeelooMinai: Not sure about that first 4K - I think it should be higher
02:17 AM pink_vampire: LeelooMinai: hi
02:18 AM pink_vampire: XXCoder: ?
02:26 AM Deejay: moin
02:28 AM pink_vampire: hi Deejay
05:01 AM XXCoder: hey pink_vampire
05:01 AM pink_vampire: hi XXCoder!!
05:02 AM XXCoder: whats up
05:02 AM pink_vampire: i'm fine
05:02 AM XXCoder: cool. the reroute between home and work sucks
05:03 AM pink_vampire: I just wake up before few min
05:03 AM XXCoder: to get to home, I have to go north i5, turn around to south i5, drive for while, then turn around to north i5 to be able to get to my exit
05:03 AM pink_vampire: I hate reroutes
05:03 AM XXCoder: it'll be effective for couple months I think
05:03 AM XXCoder: major freeway rework
05:04 AM pink_vampire: but it is much better then blocking the whole road
05:04 AM XXCoder: indeed
05:05 AM archivist: use gps find another way
05:05 AM XXCoder: archivist: I know of 8 different routes
05:05 AM XXCoder: that reworks blocks 6 of em, 2 remaining re-routes is longer than one I used
05:07 AM archivist: Sunday I was on the way back and GPS told me roadworks in 81 miles, silly machine
05:09 AM XXCoder: 81 miles being way longer than your usual route?
05:10 AM archivist: I was 130 miles from home
05:10 AM archivist: ebay collection http://www.ebay.co.uk/itm/CNC-ROUTER-LUTHIER-MACHINE/322584800591
05:10 AM XXCoder: fun. my home-work route is just 25 minutes best time
05:12 AM XXCoder: thats not too bad price for 1m rail
05:12 AM archivist: whoever built that had no clue about the carriages, he had taken out the grub screws and put in grease nipples
05:13 AM archivist: so they felt rough due to incorrect setting :)
05:13 AM XXCoder: intereting
05:14 AM archivist: and some crap in them but not much
05:16 AM archivist: and when I arrived he said and these go with it, a spare set 16mm carriages and 4 25mm rexroth rail carriages
05:19 AM XXCoder: not bad
05:30 AM miss0r2: god deal :)
06:09 AM jthornton: morning
06:09 AM Deejay: he-ya!
06:11 AM XXCoder: hey
06:58 AM JesusAlos: Hi all
06:59 AM XXCoder: hey
06:59 AM JesusAlos: The index signal homing, is only a way to work with sttper motor? or is also able to servos?
07:00 AM gonzo_: can't see why it woudl not work with servos
07:01 AM jthornton: using the index from an encoder is normally only for servos
07:02 AM JesusAlos: oh, yes you're right
07:02 AM JesusAlos: sorry
07:11 AM JesusAlos: I attempt to create a machine with 5i25 7i77 Mesa cards. To control 3 axis machine. With double motor in X. So, 4 servo motors.
07:12 AM JesusAlos: My idea is use index positioner and auto-align X axis with Gantrykins
07:13 AM JesusAlos: I'm not sure if use auto-align or manual align
07:13 AM jthornton: don't use gantrykins, use master it supports gantry homing
07:15 AM jthornton: https://www.youtube.com/watch?v=1OtWNuLWfwc
07:22 AM Tom_L: cute
07:23 AM Tom_L: is that a new feature?
07:26 AM jthornton: no, been there for a while
07:30 AM JesusAlos: I will try
07:31 AM JesusAlos: Good video example.
07:31 AM jthornton: thanks
07:33 AM JesusAlos: If we have a position error between both limit switches, there are a way to advance for example 5mm the position of only one motor?
07:33 AM JesusAlos: I mean, in the case where limit switches don't be aligned.
08:02 AM jthornton: I assume you can but servos only use the switch to get near, the index is the final home position
08:03 AM sync: or just use absolute feedback
08:16 AM Frank_10: my servos only communicate the encoder to the driver
08:16 AM Frank_10: you can connect them to the 7i76 but i choosed not to
08:16 AM Frank_10: and use them like steppers
08:18 AM sync: the stmbl feedbacks the position all the time to linuxcnc
08:18 AM sync: works really well
08:18 AM sync: once homed you cannot unhome the machine even if you get following error
09:48 AM dan3wik is now known as dan2wik
11:54 AM IchGucksLive: hi from germany
11:55 AM Deejay: dito
11:56 AM IchGucksLive: Deejay: tommorrow dont forget sunmilk and sunglases
11:57 AM pink_vampire: hi IchGucksLive
11:57 AM IchGucksLive: ;-)
12:00 PM Carsten is now known as Guest97111
12:00 PM IchGucksLive: hi carsten
12:00 PM Guest97111: hi, just looking for the first time :-)
12:01 PM IchGucksLive: NP are you in denmark
12:02 PM Guest97111: yes
12:02 PM IchGucksLive: there are more around from your country im in germany
12:03 PM Guest97111: have some problem with a BOB mach3 under linuxcnc with spindle control
12:03 PM IchGucksLive: Guest97111: that one https://www.youtube.com/watch?v=I00ArvYvZgI
12:04 PM IchGucksLive: there is also a german comment on the channel
12:05 PM Guest97111: have seen it byt I cant figuor out how to use the PWM with the VFD, maybe it is just me
12:06 PM IchGucksLive: so the PWM goes out to P1
12:06 PM Guest97111: yes
12:06 PM IchGucksLive: you need to enable the VFD also
12:06 PM IchGucksLive: what vfd do you use
12:07 PM IchGucksLive: sometimes it got a ready input and a Direction input
12:07 PM Guest97111: yaskawa a1000
12:07 PM IchGucksLive: to be preset
12:08 PM IchGucksLive: let me read the manuell
12:08 PM Guest97111: it is 900 page :-)
12:09 PM IchGucksLive: so S1 set to Voltige control
12:10 PM Guest97111: yes
12:10 PM IchGucksLive: S4 to Analog
12:10 PM Guest97111: yes
12:10 PM IchGucksLive: SP and SP is Shorten
12:11 PM IchGucksLive: the 24Volt goes to the BOB Relai
12:11 PM IchGucksLive: and back to S1 IN
12:12 PM Guest97111: i have for now just 12v on BOB
12:12 PM IchGucksLive: THIS has Nothing to do with VFD
12:12 PM Guest97111: ok
12:13 PM IchGucksLive: the VFD 24V needs to be to the Relai on the BOB
12:13 PM IchGucksLive: and the second Relai clamp back to S1
12:13 PM IchGucksLive: on The Side of the BOB relai where the 12V in is is the PWM out
12:13 PM Guest97111: ok, i dont get speed as well
12:14 PM IchGucksLive: this PIN 0-10V goes to A1
12:14 PM Guest97111: ok
12:14 PM IchGucksLive: and the AC of the VFD is next to the 0-10V
12:14 PM IchGucksLive: then you got a running VFD
12:15 PM IchGucksLive: shoudt i make a small Schematic
12:16 PM Guest97111: i am not with the cnc now, but i think it is like this, what about setup i linuxcnc?
12:16 PM IchGucksLive: spindle out to PIN 17
12:16 PM Guest97111: yes
12:16 PM IchGucksLive: spindle-on i mean
12:17 PM IchGucksLive: pwm to pin1
12:17 PM IchGucksLive: use liniar
12:17 PM Guest97111: ???
12:18 PM IchGucksLive: so 10% of your speed is 0,1
12:18 PM IchGucksLive: and 80% off speed is 0,8
12:18 PM IchGucksLive: you will see it in setup
12:18 PM IchGucksLive: USE 400HZ frequency
12:19 PM Guest97111: is it PDM or PWM
12:19 PM IchGucksLive: and invert the pin1
12:19 PM IchGucksLive: PWM
12:20 PM Guest97111: I am using a 400v AC 1430 rpm and will use up to 3000 rpm, anything to take care for
12:21 PM IchGucksLive: No shoudt run perfect
12:21 PM IchGucksLive: hi boddenkreuzer
12:21 PM boddenkreuzer: hi
12:22 PM Guest97111: right, i will try and hope for the best, thanks :-)
12:22 PM IchGucksLive: boddenkreuzer: Guest97111 is around your home location
12:22 PM boddenkreuzer: up north?!
12:22 PM IchGucksLive: across the bodden
12:23 PM Guest97111: no, two hours up
12:23 PM boddenkreuzer: two ours up, there is the baltic sea
12:23 PM Guest97111: DK
12:23 PM Guest97111: Holstebro
12:24 PM boddenkreuzer: goole maps says, that close to the "big" sea
12:25 PM Guest97111: 25 min west
12:25 PM Loetmichel: ah, skaggerak... "sweet" memories of my navvy time :)
12:27 PM Loetmichel: ... 8 to 12 beaufort in a 70m sub-hunter-boat with no stabilizers... fun times! ;)
12:29 PM Guest97111: I have it better on land
12:29 PM Guest97111: thank you for your help, i will be back it if I have problems, thanks again , have a nice day
12:32 PM * Loetmichel just has to find a replacement part for the red lighter... preferably a bit more subtle to the eye ;) (classic buy cheap, buy twice, thats a 100€ radio with satnav... but no motor for the display, its pulled out by hand and then flips up by spring), so no chance to program the angle of it fully opened...) without a bumper on the back you cant see a thing on the (nav) display... ->
12:32 PM * Loetmichel http://www.cyrom.org/palbum/main.php?g2_itemId=16740&g2_imageViewsIndex=1
12:34 PM pink_vampire: ?
12:34 PM Loetmichel: pink_vampire: you mean me?
12:34 PM pink_vampire: yes
12:35 PM Loetmichel: i bought a cheap chinese car radio with satnav that has a 7" display... and the angle when you open said display is so that you cant see a &$%& thing on the TFT because the sky is reflecting off
12:36 PM Loetmichel: you have to tilt it 20° towards yourself to see anything
12:36 PM Loetmichel: thats what the red lighter in the pictures is for at the moment. to be that "end stop" for the display
12:37 PM pink_vampire: cooool!!!!!!
12:37 PM Loetmichel: so i am thinking about ho i can solve that a bit more subtle
12:38 PM pink_vampire: kiss
12:44 PM djdelorie: Loetmichel: clean the screen with the wrong cleaner so it gets fogged up and less reflective? ;-)
12:45 PM Loetmichel: djdelorie: it IS already matte
12:45 PM Loetmichel: because its a resistive touchscreen
12:45 PM djdelorie: oh
12:45 PM djdelorie: well, then your only solution is to only drive at night from now on ;-)
12:46 PM Carsten is now known as Guest32726
12:49 PM IchGucksLive: djdelorie: at his age he is shure nightblind
12:49 PM djdelorie: "surely"? I'm old and I'm light-sensitive
12:50 PM roycroft: and surly?
12:50 PM Loetmichel: IchGucksLive: on the contrary. i can see better at night than in the bright of day
12:50 PM djdelorie: well, my daughter keeps reminding me to be "child-like, not child-ish", so... no ;-)
12:54 PM IchGucksLive: hi juvenal
01:19 PM IchGucksLive: im off gn8
03:39 PM phipli: quiet evening
03:39 PM JT-Shop: evening mate
03:39 PM phipli: evening
03:39 PM phipli: how goes?
03:40 PM JT-Shop: building some cat bypasses and insulating the shop and charging a couple of batteries and something else I forgot
03:41 PM phipli: I had a lazy evening - haven't made anything.
03:41 PM * JT-Shop just finished his monkey pickle break
03:41 PM phipli: considering measuring the bearings in my little cnc though
03:42 PM phipli: to draw up a possible replacement spindle mount...
03:42 PM JT-Shop: I saw where the nodemcu 8266 has both pull up and pull down for inputs :)
03:42 PM phipli: useful
03:42 PM phipli: accessible from the arduino ide?
03:43 PM JT-Shop: seems to be, I'm going to test in the am with some of those tiny little buttons
03:46 PM phipli: They're awesome boards those ESP8266s
03:46 PM JT-Shop: yea I like them more and more as I mess with it
03:46 PM phipli: when you find something that they're not quite good enough for, they have a big brother... with two core processor
03:47 PM JT-Shop: only issue is only 3.3v for outputs afaik
03:47 PM phipli: and a load more features
03:47 PM phipli: for most things the 3.3v isn't an issue as the logic threshold on most 5v electronics is lower than 3.3v
03:48 PM phipli: the inputs are also 5v tolerant which means you can wire 5v into an input - another huge advantage
03:48 PM JT-Shop: I'm thinking about the relays
03:49 PM phipli: works fine with a relay board that uses optocouplers
03:50 PM phipli: https://www.banggood.com/5V-8-Channel-Relay-Module-Board-For-Arduino-PIC-AVR-DSP-ARM-p-74110.html?rmmds=search
03:51 PM phipli: or 2 way : https://www.banggood.com/2-Way-Relay-Module-With-Optocoupler-Protection-p-972428.html?rmmds=search
03:51 PM phipli: I think the second one is the one I currently have on my prototype chicken door
03:56 PM JT-Shop: https://www.amazon.com/gp/product/B00SKG6OM4/
03:56 PM JT-Shop: that's the one I have
03:56 PM JT-Shop: https://www.amazon.com/gp/product/B01M0E6SQM
03:57 PM JT-Shop: I have them on the boat
04:00 PM phipli: Second one would probably work
04:02 PM LeelooMinai: lol... found some old ripple currency on a disk and it's worth $4000 USD now.
04:03 PM LeelooMinai: "bitcoin mining is unprofitable"
04:03 PM phipli: congratulations - what are you going to buy yourself?
04:03 PM LeelooMinai: I am going to wait 20 years more? :)
04:04 PM phipli: Good luck
04:06 PM phipli: JT-Shop: you can also use buffer chips to boost the voltage... but I can't remember which one I should recommend!
04:10 PM LeelooMinai: Those cheap Chinese songle relays are everywhere...
04:10 PM LeelooMinai: I got boards like that, but ganged 4 and 8 channels.
04:11 PM LeelooMinai: Something to consider if you need a lot of channels.
04:12 PM LeelooMinai: I thinkk they have also 16 channels ones:)
04:12 PM LeelooMinai: Not sure why they market them as "for ESP8266" - kind of silly as they are pretty generic.
04:13 PM LeelooMinai: Or has ESP become like old Arduino - and they just add it to get more hits.
04:16 PM phipli: yeah, they do 16s
04:16 PM phipli: heh
04:17 PM JT-Shop: well crap I laid out the second stud 24" inside instead of 24" c/c... gotta reworks all of them now
04:17 PM LeelooMinai: Also, other thing to consider is solid state ones - they may be a bit more expensive, not sure, but probably, but should be much better for high-ish frequency switching.
04:19 PM roycroft: it would be easier, but a bit more expense, to double up those studs
04:19 PM roycroft: unless it was 24" inside to inside on all of them
04:20 PM roycroft: then it's just a pain in the butt
04:20 PM phipli: LeelooMinai: solid state stuff leaks a little can be a problem
04:20 PM LeelooMinai: Hmm, I think here in Canada the studs are required to be 16 inches appart, or 18 - something like that, forgot.
04:20 PM phipli: if you're not expecting it
04:20 PM LeelooMinai: But not 24 for sure.
04:21 PM LeelooMinai: Ok, not sure if that is required, but googled and standard is 16 inches.
04:22 PM phipli: LeelooMinai, 16 relay boards prepared for use, controlling lots of toys for an advert : http://nervoussquirrel.com/images/smyths_21.jpg
04:22 PM LeelooMinai: phipli: You mean in terms of the switching and switched side isolation?
04:22 PM phipli: something my brother was working on a while ago
04:23 PM phipli: cheap ones on ebay don't 100% switch off
04:23 PM phipli: if you connect an LED it flickers every now and then when the voltage drifts up high enough to trigger the LED
04:23 PM LeelooMinai: phipli: If you have optos, you can still isolate completely, if you can get the switched side powered independently.
04:24 PM LeelooMinai: Right, for LEDs etc. having contact relay is not a big deal.
04:25 PM Deejay: gn8
04:25 PM phipli: JT-Shop was controlling motors so I guess either way works - they're not fast switching and they'll eat any small currents
04:25 PM LeelooMinai: phipli: lol at that photo...
04:26 PM LeelooMinai: Looks like something from old telephone switching racks.
04:27 PM renesis: are those soldered?
04:28 PM renesis: oh the control lines are through holes i guess
04:28 PM LeelooMinai: I think there are TH in the middle between the realys they are soldered to.
04:29 PM LeelooMinai: Kind of looks like that.
04:29 PM renesis: ya
04:29 PM phipli: not sure actually
04:29 PM phipli: answer might be simpler...
04:29 PM renesis: um
04:29 PM phipli: the boards might just be sat on the wires while they're being cut to length
04:29 PM LeelooMinai: Like what? Glued? :)
04:29 PM renesis: there arent enough headers for it to be otherwise
04:30 PM phipli: header is 2x10
04:30 PM phipli: screw terminals are 3 per relay
04:30 PM phipli: all adds up
04:31 PM LeelooMinai: I see 24 terminal contacts per side and even pics suggesting they are outputs.
04:32 PM phipli: yeah...
04:32 PM phipli: and the inputs are on the near side of the board
04:32 PM LeelooMinai: But right, there's a header for inputs.
04:32 PM phipli: in a 2x10
04:33 PM phipli: I'm confused at what is confusing?
04:33 PM LeelooMinai: Well, the cables were - but ok, I guess thy may be just cut and layed out but not connected.
04:33 PM roycroft: *sigh*
04:33 PM roycroft: my mac pro finally gave up the ghost
04:33 PM roycroft: i've been nursing it along for a couple years now
04:33 PM LeelooMinai: "does it look like Steve Jobs"?
04:34 PM * roycroft just ordered a new imac that he can't afford
04:34 PM phipli: roycroft: which year? what went?
04:34 PM roycroft: 2007
04:34 PM roycroft: and it's been booting since last night
04:34 PM roycroft: it's in permanent beach ball mode
04:34 PM roycroft: it's been running slower and slower and slower over time
04:34 PM phipli: have you tried a boot cd?
04:35 PM phipli: sure it isn't software?
04:35 PM roycroft: and it's not a software issue - i installed mac os on a portable drive, and booted off of that
04:35 PM roycroft: and the performance is the same
04:35 PM phipli: yeah...
04:35 PM roycroft: oh well, it's had a good run
04:35 PM phipli: hum
04:35 PM roycroft: 10 years is a decent lifespan for a computer
04:35 PM phipli: I would... test a little bit more
04:35 PM phipli: my '08 is still running fine
04:35 PM roycroft: i knew this was going to happen
04:36 PM roycroft: so early this year i built a nice freenas machine
04:36 PM roycroft: and moved all my data to that
04:36 PM roycroft: once i get the imac i'll do some more diagnostics on the mac pro
04:36 PM roycroft: if i can get it running properly again it would make a nice server
04:36 PM roycroft: maybe running open bsd or linux
04:37 PM roycroft: my old 20" cinema display also died a while back, and i'm down to a single 24" 1080p display
04:37 PM roycroft: the imac will have a 27" 5k display
04:37 PM roycroft: and i can use the 24" as a secondary display
04:37 PM roycroft: all in all it will be a nice upgrade
04:37 PM roycroft: but i just did not want to spend the money right now
04:37 PM roycroft: fortunately, i found a good deal on a refurbished late 2015 model on the apple store
04:38 PM roycroft: and more fortunately, my barclay visa card just started a 24 month @0% apr finance deal on apple computers
04:39 PM roycroft: but this is going to cut into my budget for shop toys for a while :(
04:40 PM LeelooMinai: Hmm, I guess I am not up to date - thought apple desktops are dinosaurs by now.
04:40 PM roycroft: sure, because they just announced a whole new line of imacs
04:40 PM LeelooMinai: Lame...
04:40 PM roycroft: the new ones won't even be out until december
04:40 PM roycroft: it's lame that a company makes stuff that people want?
04:41 PM phipli: do you CNC from it?
04:41 PM roycroft: i run solidworks on it
04:41 PM roycroft: and design stuff to machine with solidworks
04:41 PM phipli: under windows?
04:41 PM roycroft: yes
04:41 PM phipli: shame
04:41 PM roycroft: my macs generally run a bunch of xterms and a bunch of vms :)
04:41 PM roycroft: plus the mac stuff
04:41 PM phipli: spent years looking for something that wasn't autocad
04:42 PM LeelooMinai: I never liked Apple and never will - lots of pretty questionable marketing and technology tactics, patent trolling, etc.
04:42 PM roycroft: most of my day job work is with unix-like machines
04:42 PM roycroft: it makes sense that my desktop and laptop machines also run unix
04:42 PM roycroft: which is why i use macs
04:43 PM LeelooMinai: If it was up tp them they would close all the standards and make prices so high that no one could afford computing.
04:43 PM roycroft: i wasn't much into macs until os x came out
04:43 PM roycroft: you're such a moron
04:44 PM roycroft: you're at least as bad as the people you claim to hate
04:44 PM LeelooMinai: Yes, of course - that's how it is. I am a moron, and Apple is wonderful:)
04:44 PM roycroft: full of tribalism and truthiness
04:44 PM roycroft: all i said is that you're a moron
04:44 PM LeelooMinai: Only I have no tribe - a minor detail.
04:44 PM roycroft: and i stand by that
04:44 PM * roycroft should disengage before things get ugly
04:45 PM roycroft: my problem is that i'm too easy to troll
04:45 PM LeelooMinai: You seem to troll yourself by now:)
04:45 PM roycroft: i can't really blame that on the trolls in good conscience though
04:46 PM LeelooMinai: An auto-troll: a new concept:p
04:47 PM CaptHindsight: please, lets not argue over who is more stupid
04:48 PM LeelooMinai: CaptHindsight: Tempted to join the fight over the top spot? :)
04:49 PM CaptHindsight: andypugh: find a connector?
04:49 PM andypugh: Not yet
04:50 PM CaptHindsight: FCI used to make a connector that would lubricate the pins upon each removal
04:51 PM LeelooMinai: andypugh: Making one of those CUBE Sat designs? :)
04:59 PM phipli: my housemate helped make a cube sat as a 4th year project
04:59 PM roycroft: what kind of connector are you seeking?
04:59 PM phipli: he works for surrey satellite now
04:59 PM phipli: he always did want to build spaceships
05:01 PM LeelooMinai: Hmm, that place wants me to some Google Aithenticator thingy. Anyone used it?
05:01 PM LeelooMinai: I don't have a cell phone though...
05:05 PM LeelooMinai: Hmm, I wonder if if I run Android emulator on Windows, and use the app, it will work.
05:06 PM sync: > 2017
05:06 PM sync: > no cell
05:06 PM sync: pls
05:07 PM LeelooMinai: I have internet access, so what do I it for... I don't leave home too:)
05:09 PM LeelooMinai: Not sure how this thing works. Does it need android + actual SIM-card/etc. phone, or just a hardware running android or, well, jsut android
05:10 PM LeelooMinai: Hmm, well, it installed in an emulator - maybe there's hope.
05:25 PM CaptHindsight: roycroft: a low cost connector to handle steppers or servos with encoder signals that is durable would be handy for cnc applications with a portable/removable 4th and or 5th axis
05:26 PM CaptHindsight: 50 cycles is the avaerage rating for most multipin connectors unless they are lubricated
05:26 PM roycroft: individual connectors for each axis?
05:27 PM CaptHindsight: yes, say you have a 4th axis trunion
05:27 PM roycroft: inline or chassis mount?
05:27 PM CaptHindsight: or a trunion with a rotary 5th axis
05:28 PM CaptHindsight: wire to wire or wire to chassis
05:28 PM roycroft: i'd use d-sub connectors for small machines
05:28 PM roycroft: but there are current limitations to those
05:29 PM roycroft: de-9 has enough pins to double up to increase current capacity, but that's not a very elegant solution
05:29 PM CaptHindsight: we had one that combined power and fiber back in the 90's
05:30 PM CaptHindsight: if you can actually find the specs for the sub-d you'll see them rated at 50 mating cycles
05:30 PM roycroft: 4 pin xlr connectors are inexpensive
05:30 PM CaptHindsight: and not enough pins for motor windings and encoder signals
05:30 PM roycroft: i was not aware that they're rated at such a low duty cycle
05:31 PM roycroft: there are xlr connectors that go up to 7 pins, but they get quite a bit more expensive when the pin count is higher
05:32 PM CaptHindsight: you want something with 4 power pins for the motor and 6-9 for the encoders, plus encoder power and a ground
05:32 PM roycroft: wait
05:32 PM roycroft: i asked earlier if the requirement was one connector per axis
05:32 PM roycroft: and i though you said yes
05:32 PM roycroft: it sounds like you want one for all of them
05:32 PM CaptHindsight: yes, one axis can have 4 motor wires and 6-9 encoder signals
05:33 PM roycroft: oh
05:33 PM CaptHindsight: AC servo is 4 wires
05:33 PM * roycroft is not familiar with servo motor wiring, and though it had fewer signals
05:33 PM CaptHindsight: most steppers are 4 as well
05:33 PM CaptHindsight: DC servo will have minimum of 2
05:34 PM roycroft: i'll be doing the design work for my cnc machine very soon
05:34 PM roycroft: as soon as my lathe is back functional, and i can modify some ball screw ends
05:34 PM roycroft: so i guess i'll be learning a lot more about motor wiring then
05:35 PM roycroft: that's sad, because that means i'll get lost in the digi-key and mouser catalogs for several hours looking for suitable connectors
05:35 PM roycroft: i kind of enjoy doing that type of research, but it sure turns out to be a big time sink every time
05:36 PM CaptHindsight: http://www.parkermotion.com/dmxreadyv2/faqsmanager/app_engine/assets/images/be_fo_fl_old_new_color_codes.png
05:36 PM CaptHindsight: ^^ this doesn't include the motor windings
05:36 PM CaptHindsight: so add 4 more pins with a few amps ea
05:37 PM roycroft: probably some hybrid connectors with a few high current pins and a bunch of low current pins would be appropriate
05:37 PM roycroft: a 20 pin connector with all 20 pins high current would be pretty big
05:39 PM roycroft: an argument could be made that since control and payload are of such different current levels, separating them on two different cables might be appropriate
05:40 PM CaptHindsight: http://www.mouser.com/new/harting/harting-pushpull-connectors/ Mating cycles: Min. 750
05:42 PM LeelooMinai: lol @ the prices
05:43 PM CaptHindsight: http://www.mouser.com/new/harting/harting-han-hmc-connectors/ 10,000 mating cycles
05:43 PM roycroft: how often do you anticipate mating your cables?
05:44 PM roycroft: with a controller computer dedicated to a single machine, i should think a couple times/year on average would be about right
05:44 PM roycroft: but if the control computer moves from machine to machine i can see having to mate a lot more often
05:44 PM CaptHindsight: or a loner cable to move the 4th and 5th and keep them connected
05:45 PM CaptHindsight: loner/longer
05:46 PM roycroft: yeah, if your 4th and 5th axes are installed intermittently i suppose you'd be mating them more frequently than 2x/year
05:47 PM roycroft: unless it's *very* intermittent
06:07 PM CaptHindsight: I can see a busy shop with a few machines doing it once a week
06:08 PM CaptHindsight: small parts just go on the 5-axis
06:08 PM CaptHindsight: anything larger needs the extra space
06:14 PM roycroft: yes, that's what i'd expect
06:15 PM sync: usually you let the additional axis sit on the machine
06:15 PM sync: the setup is annoying
06:31 PM CaptHindsight: move the axis(es) vs get a another machine
06:34 PM CaptHindsight: http://www.mouser.com/search/refine.aspx?Ntk=P_MarCom&Ntt=166743954 ~$5 per mated pair of contacts
06:36 PM CaptHindsight: 20 pins x $5 = $100 + the body, shell, strain relief
06:56 PM BeachBumPete: Happy Birthday to....ME!! :)
06:56 PM JT-Shop: and hopefully you have many many more
06:57 PM BeachBumPete: That's the plan isn't it? :)
06:58 PM JT-Shop: aye, but it doesn't always work out...
06:59 PM BeachBumPete: well hopefully I won't die of Death by Ice cream Birthday Cake LOL
06:59 PM JT-Shop: well I hope you get brain freeze lol
07:00 PM BeachBumPete: You're all heart man
07:00 PM JT-Shop: well it's fun to risk it and sometimes you get it
07:01 PM JT-Shop: get right up to the edge and stop eating it
07:03 PM BeachBumPete: :)
07:03 PM JT-Shop: but sometimes you go just a little too far :)
07:04 PM BeachBumPete: Sure but Carvel is worth it hehe
07:04 PM JT-Shop: aye
07:04 PM Tom_L: homemade icecream freeze is the best
07:04 PM * JT-Shop wonders where the wife is...
07:04 PM Tom_L: not here
07:04 PM JT-Shop: I've not made homemade icecream in a long time
07:05 PM Tom_L: me either
07:05 PM Tom_L: you should put your icecream recipies up next to your beer ones on your site :D
07:05 PM JT-Shop: lol
07:06 PM JT-Shop: I wonder if someone has Grand Mothers ice cream recipes
07:06 PM Tom_L: i used to make peach, stawberry and vanilla
07:07 PM JT-Shop: I remember cranking for all I was worth as a ute
07:07 PM Tom_L: with fresh orchard peaches
07:07 PM JT-Shop: and once the inner container had a hole so it was salty ice cream :(
07:07 PM Tom_L: oops
07:53 PM andypugh: I like these connectors, but not quite enough data (I have differential halls and encoder, so with the encoder power that’s 14 data pins needed.) http://www.mouser.co.uk/ProductDetail/Phoenix-Contact/1621567
07:54 PM andypugh: But only 100 mating cycles.
07:54 PM andypugh: There again, that’s probably a few years for me.
07:55 PM sync: harting would also be an option
07:59 PM skunkworks_: pcw_home, the spindle interface on the 7i76e is +/-10? Like it could be used to run a servo if needed?
07:59 PM malcom2073_: andypugh: Have you looked into M12 connectors? They're >= 100 mating cycles, and only like $15 each
07:59 PM andypugh: The harting HMCs look good, but I am not sure what one would use for a blanking cap when the 4th axis was not fitted. And it looks like you end up buying several parts separately.
08:00 PM andypugh: I might just go for Speakon for the servo power and Lemo for the signals. I have both of those.
08:00 PM malcom2073_: I got to use a supermax fv56a today at work, first time I've actually used a "professional" control system
08:01 PM malcom2073_: Besides very simple stuff with the matsurra at my last job, which was just positioning and drilling
08:02 PM sync: andypugh: you can get them with a cap
08:02 PM skunkworks_: pcw_home, ok - it kinda says in the manual. (if you hook + to +10 and - to -10 you get +/-10v. But have to offset linuxcnc accordingly..
08:07 PM pcw_mesa: skunkworks: no, the 7I76 analog out is unipolar you can get +-5V say but 20V is too high
08:08 PM pcw_mesa: (and you would have to offset things in linuxcnc and live with -5V at startup)
08:09 PM pcw_mesa: Also too slow for servos (~100 hz bandwidth)
08:10 PM pcw_mesa: really just meant for VFDs
08:18 PM skunkworks_: ok - thanks
08:19 PM skunkworks_: is the spindle interface on the analog board the same?
08:19 PM skunkworks_: I suppose there isn't one
09:33 PM pcw_home: Yeah the "spindle" interface on a 7I77 is just a standard servo +-10V interface