#linuxcnc Logs

Sep 01 2017

#linuxcnc Calendar

01:48 AM IchGucksLive: morning from germany
02:03 AM gloops: so 2 days off to finally finally finally finish the router turns into 1 afternoon off...
02:25 AM Deejay: moin
03:33 AM MrSunshine: so linuxcnc supports two different drives for the same axis? (their own step/mm etc?)
03:55 AM Vq: Longbow: I'm not sure but I can't find any in the documentation.
03:56 AM Vq: Longbow: I'd probably write a 'round' component, it's pretty easy to do with halcompile.
03:58 AM Vq: Longbow: roundf(x*100.0)/100.0
04:19 AM Longbow: jup. I made a custom HAL component
05:16 AM jthornton: morning
05:17 AM XXCoder: yo
05:24 AM XXCoder: jthornton: I took a direct drive home today
05:27 AM jthornton: no detours today
05:27 AM XXCoder: yeah
05:29 AM jthornton: nice
05:32 AM jthornton: Cloudy through mid morning, then gradual clearing, with a high near 78. North wind 10 to 14 mph, with gusts as high as 22 mph.
05:33 AM jthornton: looks a bit windy today
05:33 AM XXCoder: here its hot week
05:33 AM XXCoder: reaching 93 and 94f for tues and wed ugh
05:33 AM XXCoder: means work will be over 100f
05:33 AM jthornton: yuck
05:34 AM jthornton: saturday will be nice here starting out at 56 and only getting to 80 with sunny skies sounds like a day for a motorcycle ride somewhere
05:35 AM XXCoder: indeed
05:35 AM XXCoder: too bad I dont ride one nor will lol
05:36 AM jthornton: dang M.2 drive is screaming fast, ubuntu server installed in a couple of minutes
05:40 AM XXCoder: wow
05:47 AM jthornton: now to set up zoneminder
06:38 AM Tom_itx: jt, what board/cpu did you go with
06:42 AM XXCoder: damn
06:42 AM XXCoder: heat warning at large parts of calfornia
06:42 AM jthornton: https://www.amazon.com/gp/product/B01N2WG23X
06:42 AM XXCoder: specifically san francisco
06:43 AM jthornton: https://www.amazon.com/gp/product/B01MRRPPQS
06:43 AM XXCoder: up to 115f
06:43 AM jthornton: https://www.amazon.com/gp/product/B01LY154MY
06:43 AM jthornton: https://www.amazon.com/gp/product/B005O65JXI
06:43 AM jthornton: https://www.amazon.com/gp/product/B017NW5NZY
06:45 AM Tom_itx: those pcie drives are supposed to be quick
06:45 AM jthornton: ubuntu server 16.4 installed in a couple of minutes
06:45 AM jthornton: took me by surprise for sure
06:47 AM XXCoder: btw if you guys are at calfornia, careful this week
06:47 AM XXCoder: super hot, some areas 115f
06:51 AM Tom_itx: hah, reading a review: That said, these drives are so fast that under most normal use they get their transfers done before heat can become a major issue.
06:59 AM jthornton: now I can't get the hikvision camera to work with zoneminder :(
07:10 AM jthornton: ah ha Onvif had the info I needed I think
07:15 AM IchGucksLive: hi
07:32 AM hazzy1: morning
08:29 AM tpra: hi
08:31 AM archivist: lo
08:31 AM tpra: i'm running a latency test for 18 hours or so, while stress-testing it. what latency should i look at ? servo thread or base thread ? the documentation says it's better if it's under 15000 ns, but it doesn't say which latency (i have 9000ns jitter for servo thread, and 99000ns jitter for base thread)
08:33 AM archivist: stepper or servo system
08:33 AM tpra: ok, thanks :)
08:33 AM tpra: ho maybe it was a question ^^
08:34 AM tpra: i'll be using steppers, not servos. on a mesa 7i76e board
08:36 AM archivist: hmm dunno with that card it can do some of its own timing so may be able to work with a less good latency,
08:37 AM archivist: who is selling out email addresses, just got a kickstarter email for some cnc project
08:38 AM tpra: looks like results of people on this page : http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Latency-Test are way more consistent than my results (i have a huge difference between base thread max jitter and servo thread max jitter) will tru to optimize this :)
08:45 AM pcw_home: If you are using external hardware (not software stepping) the latency test is relatively meaningless
08:46 AM pcw_home: also you want to disable the base thread since it will invalidate your numbers
08:47 AM tpra: ok. good to know !
08:47 AM pcw_home: (systems with external stepgens/encoder counters/PWM gens don't use a base thread)
08:52 AM pcw_home: for the latency-histogram:
08:52 AM pcw_home: latency-histogram --nobase
09:03 AM MrSunshine: hmm, having a constant jitter of about 4000ns .. and nothing i do can make it go over it .. but when i start linuxcnc for some reason it spikes and i get realtime error ? .. :/
09:03 AM MrSunshine: have to set the jitter to like 24k to get rid of that :/
09:03 AM MrSunshine: slows the machine down to a crawl
09:09 AM gloops: yes linuxcnc can do more than one motor per axis, it sends pulses to joints not motors though, independent signal for each motor, ive just started looking at it for my next build
09:10 AM gloops: you basically duplicate the 'axis' (joint) in the Hal file and the ini file
09:12 AM gloops: if i remember right, so you would have axis X and axis Xx or Xa or whatever
09:20 AM tpra: pcw_home: https://img11.hostingpics.net/pics/634818tib01Sep20171196.png does that look ok to you (well if i check it stays like this on a longer period)
09:21 AM tpra: i may try to change isolcpus to see if it's better, even if it's not useful i prefer to get the best possible base
09:21 AM pcw_home: I would not use isolcpus
09:22 AM tpra: ok. so now i just have to give it a try in real life with wired steppers i assume, and see what happens ! the cnc kit will be there on monday :)
09:23 AM pcw_home: With a 7I76e, there is really nothing to gain by improving latency more that required to reliably send/receive Ethernet packets at a 1 KHz rate
09:25 AM pcw_home: the main thing you need to do are disable power management and CPU speed switching as these can cause millisecond latencies
09:26 AM pcw_home: also if you are using a 7I76E and you have a Intel Ethernet chip on your motherboard you need to turn off irq coalescing in the Intel Ethernet driver
09:27 AM tpra: ok
09:27 AM tpra: should i disable c-state in the bios too ?
09:29 AM pcw_home: Usually I disable c states > 1, you may not have to, probably worth testing
09:36 AM tpra: ok. thanks. is that a good start point to disable CPU speed switching ? https://wiki.debian.org/HowTo/CpuFrequencyScaling
09:36 AM pcw_home: yes
10:18 AM gloops: with these kind of spindles -
10:18 AM gloops: http://www.ebay.co.uk/itm/800W-CNC-Air-Cooled-Spindle-Motor-ER11-PWM-Speed-Controller-Mount-Engraving-CE-/122530723655?
10:18 AM gloops: can i wire that direct to 240v house supply with on off switch?
10:19 AM SpeedEvil: No
10:19 AM SpeedEvil: Well, you can, but it will explode
10:20 AM gloops: ok, need the inverter then
10:20 AM SpeedEvil: http://www.ebay.co.uk/itm/0-8KW-ER11-AIR-COOLED-SPINDLE-MOTOR-MATCHING-1-5KW-INVERTER-DRIVE-VFD-CNC/201484921885?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D2%26asc%3D45993%26meid%3D9b26b0f690f240a6a1f8d784f7d7b18c%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D122530723655&_trksid=p2047675.c100005.m1851
10:20 AM SpeedEvil: yes
10:21 AM gloops: in that case i might for 1.5kw, not much more cash
10:23 AM jdh: 2.2kw
10:23 AM gloops: nah man im only routing wood
10:24 AM gloops: in fact i need to think about weight, 1.5kw might be getting heavy
10:25 AM miss0r: gloops: When it comes to wood routing, you also need some power. otherwise you won't be able to cut alot at a time
10:26 AM miss0r: gloops: Might I reccomend getting a wood router to do it with? actualy not a bad choice, if you get a proper one
10:26 AM gloops: yes i understand that miss0r, ive got a 1kw ryobi router on it atm it ploughs through wood at the speed im going to be using, it probably would be better to go higher than required though
10:27 AM miss0r: so you are looking at thoes spindles for what reason exactly? noise reduction?
10:27 AM gloops: i would stick with router but noise is a slight concern
10:28 AM gloops: have got 2 bigger hitachi routers but pretty heavy, they are beasts but very loud
10:28 AM miss0r: Alright. Theres absolutly a difference in between a regular wood router and the fleabay special spindle. But do not expect it to be realy quite
10:30 AM gloops: everyone says theyre quieter, ive never used one, have a small tinny 400w thing but i dont think that is useful comparison - it is well quiet
10:31 AM miss0r: they are 'alot' quiter. don't get me wrong. But I still wouldn't want to sleep next to it :]
10:32 AM miss0r: also, make sure to get one of thoes spindles that says '4 bearings'. usualy that means you won't just get an electric motor with an er11 collet in the end ;)
10:32 AM gloops: this is the thing, im going to box the machine in with insulation and so on, but as much noise reduction as possible is desirable, dont want neighbours sending letters, if they dont notice anything they wont be bothered
10:33 AM miss0r: that is true. If that is the case, make sure you build it as a 'floating box'. so you won't have vibrations running down into the floor and on from there
10:33 AM gloops: the router i have is not that loud at the distance of their gardens, it just sounds like someone hoovering or something - but that can be annoying if it goes on for hours
10:33 AM miss0r: gloops: I would consider this set an option: http://www.ebay.co.uk/itm/1-5KW-ER11-4-BEARING-AIR-COOLED-SPINDLE-MOTOR-1-5KW-INVERTER-DRIVER-VFD-/272567323759?hash=item3f76474c6f:g:nUMAAOSw1vlUvLuI
10:34 AM miss0r: also, if you want anything bigger than 1.5kw, please go for the water cooled ones
10:35 AM miss0r: archivist: you around?
10:35 AM gloops: i doubt i will go bigger tbh, im not looking to rip sheets up at 600ipm or anything
10:36 AM gloops: that looks ok yeah
10:36 AM miss0r: Might I ask; what are you doing with your router?
10:37 AM gloops: just general work, some carving, will cut some joints, smaller sheet items
10:38 AM miss0r: home build router?
10:39 AM gloops: yeah home made just needs a few finishing touches and general tidying up of wires and so on
10:40 AM miss0r: cool. good luck with it :]
10:41 AM gloops: already planning the next one lol, but thanks
10:42 AM miss0r: yeah. I know the feeling. I also build machines on a hobby basis :) i've done two 3-axis cnc routers. an EDM drill, and am currently working on a small cnc lathe made from epoxy granite
10:45 AM gloops: casting the bed from resin or something?
10:45 AM miss0r: yeah. mixed with granit gravel. i've not been realy scientific about it. Hoping for the best here :]
10:47 AM miss0r: bleh. Its not always a fast working process. Like right now: I find myself having a couple of hours before the wife and kids get home. and i'm just standing here in the shop browsing the internet for a good spindle choice of my own.... At the moment I'm just thinking about ordering a pizza and watching a movie :]
10:47 AM gloops: hmm, ive not worked with epoxy for casting stuff like that, i do have a bit of experience with grp laminating and casting, i guess the pebbles will stop cracking to some extent, some mesh would help as well though, carbonfibre maybe
10:49 AM gloops: lol, well when i first started building there was rapid progress and lots of items ordered in good time etc, as it come to the end everything has slowed way down and i browse a lot more before buying, i should be having an hour on it now
10:49 AM miss0r: hehe
10:50 AM miss0r: I also do some wood working from time to time.. I was handed an x-carve(shitty router) for free. I did some upgrades on it, and made it workable. I did a 18" subwoofer box for my home cinema: http://picpaste.com/pics/20160921_002118-vXr59c3D.1504279089.jpg
10:51 AM miss0r: Realy proud of the fact that I didn't use a single screw in putting it together
10:51 AM gloops: cant be bad if it makes stuff like that that looks pro!
10:52 AM miss0r: I have a short video of it cutting; its a link to google drive, it doesn't work for everyone: https://drive.google.com/open?id=0B51cA8Udo5i7UnVVb0ZIRWh1LUU
10:52 AM sync: that seems like a lot of work for just putting some plywood together
10:53 AM miss0r: sync: one might even go as far as to say 'overly complicated' :D (words to live by)
10:53 AM gloops: that is a strong box lol
10:53 AM gloops: hey that looks ok miss0r pretty quick too
10:53 AM sync: I've built some enclosures and I always just brapped in some screws
10:53 AM miss0r: when it comes to woofer boxes, it is realy _realy_ important that the box is stiff
10:54 AM sync: although the screws only provide pressure to get the glue to work well
10:54 AM sync: otherwise you'd have to put in hundereds of screws
10:54 AM gloops: screw would probably part the plywood unless some careful pilot drilling, they dont hold that well anyway
10:55 AM miss0r: gloops: that is what the router looks like now. when I got it, it was equipped with a small DC spindle motor... I'm just guessing here, probally 300 or 250watt. that it wasn't even a spindle - it was just a DC motor with a tiny bearing in each end, and a ER11 collet hammered on
10:55 AM sync: no, they do not split the plywood ime
10:55 AM miss0r: that all depends on the screw ect..
10:56 AM miss0r: but i've made a rule of pilot drilling everything that has to go into a sheet from the side
10:56 AM gloops: sync screwing into the laminate down into the grain is always putting pressure on to part the ply
10:56 AM gloops: i mean a box like that probably isnt going to be under a lot of stress but box joints are superior
10:56 AM sync: sure, but I've only split cheap plywood with cheap screws
10:56 AM miss0r: gloops: Where are you from anyway?
10:56 AM sync: the box is under huge stress
10:56 AM gloops: im from yorkshire - UK
10:56 AM miss0r: sync: hahaha 'mr. I-Blame-The-materials'
10:57 AM sync: this is why you glue it and screw it together to provide adequate clamping pressure
10:57 AM sync: well not really miss0r
10:57 AM sync: but it is just the experience
10:57 AM gloops: haha, glue is no good on endgrain
10:57 AM sync: it will still make your box stiffer
10:58 AM miss0r: sync: yeah. In my experience I can mess it up no matter what i've payed for it. Actualy - the more expensive the more likely I am to do a catastrophic faliure
10:58 AM gloops: well it mwill because it sets and keeps the joints tight so they dont wobble loose
10:58 AM gloops: not that great bonding though
10:58 AM sync: it works well enough
10:58 AM sync: I even took out the screws out of a sub for lulz
10:59 AM sync: still is together
10:59 AM miss0r: well: this box will still be in one peice long after its rattled my house foundation to peices
10:59 AM gloops: if you stick along the grain the join is as strong as the wood itself
11:00 AM gloops: i will be doing some box joints anyway, and dovetails
11:00 AM sync: it's just too much work for a speaker enclosure
11:00 AM sync: for no gain
11:01 AM gloops: anyway the sight of a working machine has spurred me on, off to the garage
11:01 AM sync: most of the work is in the simulation and design anyway
11:01 AM miss0r: yeah. the fingerjoints on this box doesn't make any sense anyway. IMO these types of joints are outdated. the glue 'now'a'days' are good enough that you don't need all that surface for it to work
11:01 AM miss0r: I just like the look of it
11:03 AM archivist: miss0r, mebe
11:04 AM miss0r: archivist: I am forgetfull. You mentioned a solution you have for a spindle with an encoder you use, the other day. I forgot what it was
11:04 AM archivist: hmm cant remember what it was in connection with
11:05 AM miss0r: as I need a spindle solution for this small cnc lathe i'm building
11:05 AM archivist: lots of "other days" in the past :)
11:05 AM miss0r: and I want to be able to thread with it, so I need to know 'where it is' somewhat acurately
11:05 AM miss0r: The current status of the lathe cast: http://picpaste.com/IMG_20170901_173206-YlCp6Z3j.jpg
11:06 AM archivist: my lathe has a simple index and 40 ish slots
11:06 AM miss0r: that sounds a little 'on the lover end' in my ears?
11:06 AM archivist: linuxcnc follows the spindle so its not hard
11:07 AM archivist: you can go lower, no need for excess accuracy there
11:07 AM miss0r: b...b..but? :D
11:08 AM miss0r: what are you using as an encoder?
11:09 AM archivist: http://www.collection.archivist.info/searchv13.php?searchstr=encoder+starturn
11:09 AM archivist: I showed you the internal thread done with that setup
11:09 AM miss0r: I must've missed that part
11:10 AM archivist: http://www.collection.archivist.info/searchv13.php?searchstr=leawood+nipple
11:10 AM archivist: bottom image
11:10 AM archivist: no safety groove
11:11 AM miss0r: that doesn't look half bad
11:11 AM miss0r: I'll do something like that yeah. What motor is it using?
11:12 AM archivist: it has a dc motor on the spindle
11:12 AM miss0r: regulated how?
11:12 AM archivist: linuxcnc does not control its speed at the moment, a pot
11:14 AM miss0r: alright. I'm thinking of just buying one of thoes cheap 1kw electric scooter motors. And perhaps whip up some PWM regulator
11:15 AM miss0r: Did you make the indexer yourself?
11:15 AM archivist: get to speed before initiating a cut
11:16 AM archivist: that was built into the lathe, but have copied that style for the mill
11:17 AM miss0r: something to work on :] Gotta love it. I have to run. see you around
12:14 PM Tom_itx is now known as Tom_L
12:46 PM IchGucksLive: hi
12:47 PM IchGucksLive: Tom_L: pcw fixed all up
12:49 PM Tom_L: great
12:49 PM Tom_L: that .vhd wasn't in the zip
12:55 PM IchGucksLive: he did now more then 4 new bob
12:56 PM Tom_L: update reflected on his site?
12:57 PM IchGucksLive: yes the zip is up to date
01:06 PM Tom_L: still don't see it but meh...
01:10 PM pcw_mesa: All the new pinout files should be in the current zips
01:10 PM IchGucksLive: Thanks pcw igot it
01:10 PM IchGucksLive: order is out on 3 parts
01:11 PM pcw_mesa: (new project flle must be use as a few new modules/functions have been added)
01:11 PM IchGucksLive: eusurplus
01:12 PM IchGucksLive: pcw_mesa: do you know if he orderd the 7i92 also as out of stock only 7i92m available
01:12 PM pcw_mesa: 5Abob and C11 added to 5I25 also
01:12 PM pcw_mesa: Dont know what his stock situation is
01:13 PM IchGucksLive: http://eusurplus.com/index.php?route=product/product&product_id=614&search=7i92&description=true&sub_category=true
01:14 PM pcw_mesa: 7I92,7I92H,7I92M are pretty much interchangable (just different primary I/O connector)
01:14 PM pcw_mesa: 7I92M is nice if you dont want any cable between BOB and 7I92
01:15 PM IchGucksLive: the M is also on the BOB
01:15 PM IchGucksLive: so cable needs to be Female/Female
01:15 PM pcw_mesa: Weird
01:16 PM IchGucksLive: ordanary PC got Female plug
01:16 PM IchGucksLive: so it is used to have Male on the BOB
01:17 PM IchGucksLive: as a simple extencian cable is used
01:17 PM IchGucksLive: i will crimp my own 6 cables
01:20 PM pcw_mesa: female DB25s on BOBs/Drives and male/male cables are much more common
01:21 PM pcw_mesa: you can use the common IDC26 --> DB25F second parallel port cable for a 7I92 --> Male DB25 BOB
01:24 PM IchGucksLive: yes
01:24 PM IchGucksLive: as we talkd yestrerday i got 2 BOBS in the cabinet
01:24 PM IchGucksLive: so i use both 7i92 out
01:25 PM IchGucksLive: i holp he is mailing back
01:25 PM pcw_mesa: This kind of thing
01:25 PM pcw_mesa: https://www.amazon.com/StarTech-PLATE25F16-Parallel-Female-Header/dp/B00213KJSC/ref=pd_lpo_vtph_147_tr_t_2?_encoding=UTF8&psc=1&refRID=3ZG6M69F1PTG3AHEH4J5
01:25 PM pcw_mesa: remove/toss the bracket
01:29 PM IchGucksLive: pcw_mesa: https://www.reichelt.de/Sub-D-Kabel/AK-407/3/index.html?ACTION=3&LA=2&ARTICLE=4004&GROUPID=6082&artnr=AK+407&SEARCH=%252A
01:29 PM IchGucksLive: only 3euros
01:29 PM IchGucksLive: the shop got almost everything
01:33 PM IchGucksLive: pcw_mesa: do you think it is a good idee to test the EMV d-Sub25 filter on a 5i25/7i76 Plasma
01:33 PM IchGucksLive: this one https://www.reichelt.de/EMV-SUB-D-Verbinder/EMV-25C/3/index.html?ACTION=3&LA=2&ARTICLE=7369&GROUPID=7421&artnr=EMV+25C&SEARCH=%252A
01:34 PM IchGucksLive: its a 820pf
01:34 PM IchGucksLive: or will it harm the comunication
01:34 PM pcw_mesa: it will probably mess up the sserial communication
01:35 PM IchGucksLive: that is the mes at all error 13
01:36 PM pcw_mesa: Do you have issues with noise now?
01:41 PM pcw_mesa: If so its best to lower the ground impedance between the 7I76 and 5I25 (shorter cable, PC and 7I76 in same control box etc)
01:41 PM pcw_mesa: and raise the I/O connection impedance (common mode chokes on connections to noise sources)
01:41 PM pcw_mesa: (or use a 7I76E instead)
01:43 PM IchGucksLive: i did th 7i76e on last 3 plasmas no problem
01:44 PM IchGucksLive: its only the first 2 plug an play i got from you in 2010 i gusse
01:45 PM IchGucksLive: the 7i76e ave also hypertherem plasmas so there is reduced noice
01:45 PM IchGucksLive: the hacked s-cuts do more spred
01:45 PM IchGucksLive: Loetmichel: bist du hier
01:47 PM IchGucksLive: im off Gn8
01:55 PM hazzy1 is now known as hazzy
01:59 PM gloops: next build, router, X axis, twin ballscrews either side, the question is, 1 motor per screw or 1 larger motor with belt connection
02:05 PM sync: 2 motors
02:08 PM gloops: why?
03:10 PM _methods: http://fortune.com/2017/09/01/juicero-is-shutting-down/
04:24 PM * JT-Shop needs to set the server ip to static...
04:28 PM Deejay: gn8
04:41 PM Tom_L: cloudin up here a bit
04:43 PM Tom_L: pcw_mesa is there anything special about building bitfiles for the ether boards?
04:45 PM pcw_mesa: No, they are the same
04:47 PM pcw_mesa: well except the pinout files typically have the DPLL added so thats a bit different
04:50 PM Tom_L: it would be nice if the mesaflash could compare the loaded file with a bit file without having to have the same datestamp
04:51 PM Tom_L: i just rebuilt mine since i wasn't sure which one i had loaded after the hdd crash
04:55 PM JT-Shop: yea long weekend is here
05:18 PM Cromaglious_: hmm ebay says I have 2 ER-16 collet sets and a 5/8 lathe tool set at home now
05:18 PM Cromaglious_: 10 metric, 12 piece sae
05:20 PM pcw_mesa: Tom_L: bitfiles will typically never match, but you can diff thepinout files
05:27 PM Tom_L: what's the DPLL stuff for?
05:31 PM Tom_L: and what boards have the capability for it?
05:37 PM pcw_mesa: The DPLL is to improve timing of repetitive task and allow pre-trigger of slow I/O tasks
05:38 PM pcw_mesa: It can be used on any card but is typically used on ethernet cards because the ethernet jitter is typically worse than PCI/PCIE/EPP
05:40 PM pcw_mesa: Its also required for Fanuc/SSI/BISS serial encoders to pre-trigger the read request so that the position data is there when LinuxCNCs read request comes around
05:43 PM pcw_mesa: Ethernet on a slow CPU may have a few 100 usec random latency spikes, these cause unwanted noise in the stepgen or servo PID loop
05:43 PM pcw_mesa: and can be eliminated by sampling the encoder or stepgen position via the DPLL (this reduces the position sampling jitter to ~250 ns or less)
05:48 PM pcw_mesa: The DPLL can be imagined as a flywheel that does a full turn every servo thread
05:48 PM pcw_mesa: Every time LinuxCNC does its read cycle the "flywheel" position is checked
05:48 PM pcw_mesa: and if its ahead, its slowed down a bit and if behind its sped up a bit
05:48 PM pcw_mesa: so it gets synchronized (phase locked) to linuxCNCs servo thread
05:52 PM pcw_mesa: now that we have this timing "flywheel" we can effectively set timing marks to read or write hostmot2 data
05:52 PM pcw_mesa: at any desired point in the servo thread period (the firmware allows 4 of these "marks" settable in usec before or after LinuxCNC's read)
06:35 PM Tom_L: so it's more an internal function
06:35 PM Tom_L: that can be added to the top of the .vhd file
06:37 PM Tom_L: and is the syntax the same for all cards?
06:38 PM HighInBC: lol https://1.bp.blogspot.com/-Gk0mz9UjOLc/WRC_27qCDiI/AAAAAAAAQXg/RuATXiHyv0Y32GSCy2WtlTKW7QGiXST4wCLcB/s1600/GRBL_Arduino_Nano_DB25_CNC_1.jpg
06:38 PM HighInBC: +20 points for style
06:43 PM Tom_L: hey andypugh
06:43 PM Tom_L: been kinda scarce lately
06:43 PM pcw_mesa: The DPLL is like any module and can be added to any card
06:43 PM Tom_L: ok
06:43 PM andypugh: Yeah, and going to be scarecer this month
06:43 PM andypugh: Spending most of this month in Arizona
06:43 PM Tom_L: i appreciate the help on getting the orient working
06:44 PM andypugh: Flying to NYC on the 11th. Flights were oddly cheap that day…
06:44 PM Tom_L: took a bit but i finally got it
06:44 PM Tom_L: just don't go to houston
06:45 PM andypugh: Something like 14 hours in planes and airports :-(
06:45 PM Tom_L: fun
06:46 PM andypugh: They are sending us business class (policy for > 8 hour flights) but we would rather travel economy and send a bigger team
06:48 PM andypugh: But I guess when it was $270,000 to ship the 8 cars, shipping the engineers looks cheap!
06:49 PM Tom_L: prototypes?
06:49 PM andypugh: Aye. And when I say “shipped” I mean “air-freight”
06:55 PM Tom_L: load em up on a dreamlifter :)
08:07 PM HighInBC: wow the CNC I ordered on the 27th is already on NA with fedex, due thursday. That is pretty fast for free shipping
08:31 PM andypugh: HighInBC: Anything fancy, or generic extruded thingy?
08:37 PM Tom_L: i think everybody's takin the night off
08:47 PM HighInBC: a 3040 frame with a chinese black box
08:48 PM HighInBC: will likely upgrade the controller and motors over time
08:50 PM andypugh: You might not need to bother. We like LinuxCNC (obviously) but all the other options appear to work too.
08:51 PM andypugh: (Getting a little hacked off by being spammed by a current Kickstarter campaign, though(
08:52 PM andypugh: I was expecting to convert my 3D printer to LinuxCNC, but it’s working, and making parts, so haven’t.
08:53 PM andypugh: Anyway, late here.
08:58 PM HighInBC: I literally have no idea what is in the controller box, but ya I am sure it will work
08:58 PM HighInBC: I just want to open it up and make sure it is optically isolated at least
08:58 PM HighInBC: and earthed
09:07 PM jdh: it will probably appear to be so.
09:18 PM HighInBC: the outside of the box in the ad looks like this pic: http://www.tridimake.com/2017/05/replacing-linuxcnc-with-smoothie-milling.html
09:18 PM HighInBC: sry this pic: https://2.bp.blogspot.com/-mSfRWsJOaNU/WQ50KlEuZgI/AAAAAAAAQVc/PA7aVGkt77AqN0vYVok_EFgjHU9tdU1zgCLcB/s640/smoothieboard_in_cnc_driver.jpg
09:19 PM HighInBC: that is unfamiliar
09:22 PM jdh: stuck with mach for that
10:10 PM HighInBC: mach is software?
11:32 PM Crom: Mach3 is software, Mach4 is crap