#linuxcnc Logs
Feb 12 2019
#linuxcnc Calendar
02:17 AM Deejay: moin
02:28 AM gloops: omg ive cracked the apron on my lathe
02:28 AM Loetmichel: apron?
02:29 AM gloops: the front plate on the saddle
02:30 AM gloops: i just wanted to put a little punch mark on something - just put it on the apron and tapped it with punch
02:31 AM gloops: just a very light tap, just noticed casting is cracked
02:31 AM Loetmichel: ouch
02:31 AM gloops: looks like another cast welding job
02:31 AM XXCoder: sucks'
02:32 AM gloops: these daft things you do without thinking - another mess about now
03:51 AM jthornton: morning
03:52 AM XXCoder: morninmg
03:52 AM XXCoder: its raining here lol
03:52 AM XXCoder: but still lots snow
03:59 AM sensille: i'm very happy with g38.2 and direct electrical contact to the workpiece. finally my Z touch off is accurate
04:15 AM CNC_Brian: Morning all
04:15 AM XXCoder: sensille: nice
04:15 AM XXCoder: hey
04:17 AM sensille: XXCoder: now i just need a way to mount the vice electrically isolated
04:18 AM CNC_Brian: Be easier to isolate the probe and have the vive as ground
04:20 AM CNC_Brian: There is a guy on eBay.co.uk who dose a nice probe of £150
04:20 AM CNC_Brian: Not worth trying to make one for that.
04:21 AM sensille: i'm using the shank of a (broken) tool as probe. not sure how to isolate it without adding runout
04:23 AM sensille: a proper 3d probe would be nice, but i don't have the money atm
04:25 AM jthornton: what are you probing for?
04:26 AM sensille: Z height + edges of the workpiece
04:27 AM sensille: mesh probing of the flatness of the workpiece would be nice, too
04:27 AM sensille: workpiece is aluminum bolted to the wooden spoil board (unless it's in the vise)
04:28 AM jthornton: for Z I use a dowel
04:28 AM jthornton: for X a dowel in the spindle and push the part up to the dowel and make that 1/2 the diameter of the dowel
04:29 AM jthornton: for Y the back of the vise I use an edge finder
04:29 AM jthornton: https://www.youtube.com/watch?v=VmRUJk0ptN4
04:30 AM sensille: do you think this is more precise than the electrical method?
04:30 AM sensille: (accurate)
04:32 AM sensille: also i still wonder where the electrical connection between the spindle an the table come from. probably through the ball screws
04:33 AM XXCoder: probably
04:33 AM sensille: although the visible part is plastics
04:34 AM XXCoder: depend on machine really
04:34 AM gloops: there are some plans for a triple edge finder online i think
04:34 AM XXCoder: some use key runways that'd be on contact permentkly
04:35 AM gloops: needs a script though
04:35 AM sensille: CNC_Brian: this one? https://www.ebay.co.uk/itm//254119351863
04:36 AM gloops: makers guide a/c suspended though https://www.youtube.com/watch?v=dhmfnea0vVA
04:36 AM sensille: although it's quite big. i doubt it would fit into my machine
04:37 AM CNC_Brian: Yes that's the one
04:38 AM CNC_Brian: Just need a 5V or 3.3V feed and a spare Input on your bob
04:39 AM CNC_Brian: Its fairly accurate I would say 0.03mm +-
04:39 AM sensille: i think the shank is more accurate (and costs nothing), but has obvious disadvantages
04:39 AM CNC_Brian: He will put the correct shank on it for you if you ask
04:40 AM sensille: ah. 6mm
04:40 AM CNC_Brian: If you rant going to employ an automatic probing script an edge-finder is fine
04:41 AM CNC_Brian: < £10
04:41 AM CNC_Brian: for an ebay special
04:43 AM CNC_Brian: A ridged drill shank will mean you have to set your feed rate really low to avoid crashing into the work
04:43 AM gloops: theres a probing vid or 2 on Ichs videos
04:46 AM CNC_Brian: How do you move the page around in Gremlin? Its just rotating on a corner of the limits. Driving me mad
05:17 AM rmu: sensille: something a bit smaller and wireless: https://vers.by/en/blog/user-guides/vers-wl
05:21 AM Vq_ is now known as Vq
06:59 AM sensille: rmu: thanks
07:00 AM sensille: and affordable
07:08 AM sensille: that looks ideal for me (although i prefer the wired version)
07:38 AM CNC_Brian: Rmu that's a nice wireless probe. What country is that firm based?
07:39 AM sensille: belarus. i just preordered a wired version
07:40 AM CNC_Brian: I would probably need to pay duty and shipping to the UK
07:41 AM sensille: tax included it says
07:41 AM sensille: but they don't let me choose a country :)
07:42 AM CNC_Brian: Where are you?
07:42 AM sensille: germany
07:42 AM rmu: i had to pay VAT and some customs handling fee, but no customs fee per se (austria)
07:42 AM CNC_Brian: Let us know how it go's I want to get a wireless and a wired tool setter.
07:43 AM rmu: AFAIK you have to use contact form to inform serguei what you want, then it goes into production, and once finished you can checkout via webshop
07:43 AM rmu: my wireless probe works find, and the toolsetter, well, let's see if i get to it next week
07:43 AM CNC_Brian: I had better get it before Brexit LOL
07:44 AM sensille: that holds for nearly everything, right?
07:45 AM CNC_Brian: It's a very bad idea, but I just want it over now.
07:47 AM sensille: of the probe works well, i'll order a tool setter and 3 homeing switches as well :)
07:47 AM rmu: that should be "works fine" instead of "works find". stupid keyboard.
07:48 AM sensille: workfinder
07:49 AM sensille: although ... if i use the touch probe for dialling in Z, I have to use a rigid tool setter
07:49 AM sensille: touching of the toolsetter with the touch probe would be ... interesting
07:51 AM CNC_Brian: Could be expensive crash.
07:53 AM sensille: a rigid tool probe with an optical 'prewarning' could be nice
07:53 AM sensille: approach it with high speed up to the last mm, then go very slowly
08:00 AM rmu: you can "calibrate" the toolsetter with the probe
08:01 AM rmu: idirectly
08:01 AM rmu: measure a cutter with toolsetter, and use it to cut a feature into some junk-piece
08:01 AM rmu: the measure the feature with the touch-probe
08:03 AM sensille: given the result of touch probe on tool setter is even repeatable
08:03 AM sensille: both have contact forces in the same range
08:07 AM sensille: ah, or i calibrate the tool setter to some fixed position on the table, and touch off the probe to that position, while i touch off the tool to the tool setter
08:07 AM rmu: touch off tool to tool setter, use tool to cut a hole, measure hole with touch probe
08:09 AM Elmo40: sounds simple enough ;-)
09:02 AM PL7icnc: Hi
09:02 AM PL7icnc: gloops, 2uploads a day
09:09 AM flyback: https://www.youtube.com/watch?v=kbPjGl0vii4&t=4m30s
09:10 AM flyback: enjoy
09:12 AM PL7icnc: flyback, tupper Has been great at that time
09:12 AM PL7icnc: now Cheep is the way that works also
09:13 AM flyback: what's funny is it was made from polyethylene scrap
09:13 AM PL7icnc: newest material at that time
09:13 AM flyback: no the scrap part heheh
09:13 AM flyback: but it was good enough for this
09:13 AM PL7icnc: like 3d prining in our time invents more and more material
09:14 AM flyback: yep
09:15 AM PL7icnc: or as we here are on CNC its TB6500-> HSS60
09:15 AM PL7icnc: Inline, from Germany ?
09:16 AM PL7icnc: On Sunday i did install 18.04 flyback
09:17 AM flyback: cool
09:17 AM PL7icnc: there is now a PPA i found in the Forum
09:17 AM PL7icnc: easy as it is
09:17 AM flyback: I will probably move my data recovery box to 18.04 and make a 16.04 vm
09:17 AM flyback: for the one piece of sw that doesn't run on > 16.04
09:17 AM flyback: I can use ata over thernet to map the drive I am working on to the vm
09:18 AM PL7icnc: I think ubuntu goes more on Money store as SNAP is invented
09:18 AM PL7icnc: snap holds the newest stuff while canonical is almost 2versions behind
09:19 AM flyback: yeah my hexchat is a snap
09:19 AM PL7icnc: as here
09:20 AM PL7icnc: It is so interesting as my English comes back so quick after years of no English word
09:21 AM PL7icnc: ok i did work years in school English
09:21 AM PL7icnc: and this here is great to get back to the past.
09:22 AM PL7icnc: flyback, did you ever get Camotics 1.2 to run
09:22 AM PL7icnc: i got only 1,1 on the 64 now to run on 18.04
09:23 AM flyback: I think you have me confused with someone else
09:23 AM flyback: not done any cnc stuff yet
09:23 AM flyback: im friends with Tom_L though
09:23 AM PL7icnc: Away for Workoff today
09:45 AM lostinsip: hello :)
12:35 PM sensille: i have a problem that from time to time the y stepper stalls during a move
12:36 PM sensille: now i reduced max velocity+accel for all axes, and now it also happens on x
12:36 PM sensille: when i turn the stepper by hand they move easily
12:37 PM sensille: this is some resonance problem of steppers, right?
12:37 PM Elmo40: is amperage adjustable ?
12:37 PM Elmo40: or power supply voltage dropping when all motors go?
12:38 PM sensille: only one motor moves
12:38 PM sensille: there are switches for current, but i think they're set to the rated current, not completely sure
12:39 PM sensille: due to the lower acceleration, the motor stays longer in the resonant region and stalls?
12:40 PM sensille: or i configure max vel to stay below the resonance freq
12:40 PM gloops: well you can bump the amps up to close to the max for your drivers
12:41 PM gloops: you want to be thereabouts to get the max out of the motors, also voltage
12:41 PM sensille: i don't have a datasheet for the steppers
12:41 PM Elmo40: in that tupperware video, the 'mold making' part around 6:30 is all CNC now. 1 guy and a 5-axis mill ;-)
12:41 PM sensille: ok, so it doesn't happen during accel
12:41 PM gloops: the steppers will probably take it, theres usually some info online for steppers if you type the product code in
12:42 PM gloops: could be screws resonating if they are lower diameter
12:42 PM Elmo40: any markings on the steppers?
12:42 PM gloops: oh DONT change the dipswitches while powered up
12:44 PM sensille: yeah, they say 3A, have to open the case, but i think it's already configured to 3A
12:44 PM sensille: if i stay <2000mm/s it seems to be fine
12:44 PM gloops: well obviously the motors do have limits
12:45 PM gloops: reducing accel will get more overall speed, but in a small workspace its a trade off
12:45 PM sensille: it went well for weeks
12:45 PM sensille: but now it starts
12:45 PM gloops: i.e you really want accel
12:45 PM sensille: and reducing accel made it worse
12:45 PM gloops: hmm, everything tight? no loose mountings or anything
12:46 PM gloops: anything that can cause drag, something loose or out of alignment
12:46 PM sensille: has to be something like that
12:46 PM sensille: but in the end it's resonance
12:46 PM gloops: or possibly a noise/ground issue
12:47 PM sensille: i can wiggle the gantry a bit
12:47 PM sensille: that might be new
12:47 PM sensille: can't do that with y
12:47 PM gloops: skate bearings?
12:47 PM sensille: so something with the nut of the ballscrew
12:48 PM sensille: and it destroyed 5 hours of work :(
12:48 PM gloops: oh sh*t
12:49 PM gloops: if you are cutting on one side of the gantry hard and the gantry can rack it will eventually lock up
12:49 PM gloops: or shift so much the ballscrew nut gets tight
12:50 PM sensille: that's not it. something is loose in the nut. need to find out what
12:51 PM gloops: well that may have cause the problem with the nut, if its been running twisted
12:51 PM sensille: the load is very light, i only cut 0.15mm of aluminum at a time
12:51 PM sensille: stepdown
12:51 PM gloops: i spent hours shimming the screw nuts, one fraction out of true and the screw gets hard to turn - not doing the nut any good
12:53 PM gloops: it seems light sensille, but there are leverage forces in play, its not light by the time it hits the bearings on the gantry
12:53 PM gloops: well if you located the issue at least you can do something about it anyway
12:56 PM sensille: oh man, the bolts for the nut where a bit loose
12:56 PM sensille: that simple
12:57 PM sensille: i hope it already fixes it
12:57 PM sensille: totally not worth the trouble
12:58 PM sensille: do you need to clean the ballscrews regularly? there are a few tiny chips on it, but very very few
12:59 PM sensille: s/you/i
01:01 PM sensille: in the ini file there's a max velocity in the TRAJ section, is that only for jogging?
01:03 PM gloops: dont take the nut off the ballscrew
01:03 PM Wolf__: rod whip will lock the motor up as well depending on length
01:03 PM gloops: clean the screws, i lubricate mine, you might want to check out some proper lubricant
01:04 PM gloops: the max velocity in TRAJ will be the default rapid speed, regardless of what each axis is set for
01:05 PM gloops: (i think, dragging my memory now)
01:06 PM gloops: this can be deceptive, although when you jog an axis it moves according to its own max velocity, when code it running it tries to do the default rapid
01:06 PM sensille: oh
01:06 PM gloops: so no axis should exceed the global max velocity
01:14 PM sensille: yeah, i know the factors. but that's the only possible downside
01:17 PM gloops: lets see 5mm screw, 1600 steps = .03 res
01:18 PM sensille: 0.003
01:19 PM Elmo40: only slightly off...
01:27 PM sensille: the moment when you think you've broken everything...
01:27 PM sensille: forgot to re-plug the lpt cable
01:30 PM sensille: joint 1 following error, so with 1/16th linuxcnc can't keep up on my machine, or only up to 1500mm/min
01:35 PM gloops: running from your own PC sensille? that seems pretty slow
01:37 PM sensille: maybe some setting is still wrong
01:37 PM sensille: but it makes a much smoother impression with 1/16th, i like that
01:38 PM sensille: and the 3A add noise
01:38 PM sensille: it's a dedicated PC, but quite old
01:39 PM sensille: some phenom cpu
01:40 PM gloops: noise as in audible?
01:40 PM sensille: yes, probably pwm switching
01:41 PM sensille: direction change really make a much better impression with 1/16th, i want to keep that
01:41 PM gloops: yes i wouldnt worry about that
01:42 PM sensille: Phenom II X4 945
01:45 PM sensille: need to increase BASE_PERIOD
01:46 PM gloops: assume youve run the latency check
01:49 PM sensille: currently running again. ~8000ns
01:53 PM gloops: that should be fine
01:59 PM sensille: need to find the setup/hold times for the tb6560 drivers
02:04 PM sensille: hm. max stepping frequency 15kHz? that's about the limit i also observe
02:06 PM gloops: i would sling those drivers and get some DM542s
02:06 PM gloops: or at least the newer tb6600
02:07 PM gloops: Pulse input frequency up to 200 KHz
02:08 PM sensille: i'll get something with 1/256th microstepping and drive them from my fpga :)
02:13 PM gloops: well youll get the theoretical resolution - but might be slightly beyond the mechanical potential lol
02:22 PM gloops: http://www.haoyuelectronics.com/Attachment/TB6600_module/HY-TB6600-Module-1_1.jpg
02:23 PM lostinsip: hi gloops :)
02:24 PM gloops: hi, hows it going
02:24 PM lostinsip: not too bad, in the middle of trying to work out how to reduce the price of this proposed CNC
02:25 PM lostinsip: basically it seems the americans pay a lot more for aluminium than we do
02:25 PM Deejay: i think they buy aluminum :)
02:25 PM lostinsip: and then if I import it it is subject to 7.5% duty
02:26 PM lostinsip: this is true, perhaps thats why the price is different
02:26 PM Deejay: hehe ;)
02:26 PM lostinsip: i checked the drawings and i think aluminium and aluminum are copatable
02:26 PM lostinsip: *compatable
02:27 PM lostinsip: my spelling is shit
02:29 PM gloops: well i thought it was a bit pricey, but i tend to be cautious with money lol
02:30 PM gloops: cheaper to buy the extrusions here and a chop saw
02:30 PM lostinsip: yeah way cheaper
02:30 PM lostinsip: in fact i dont even need to saw them as KJN will cut to length with a posh cnc saw
02:31 PM lostinsip: works out about half the price
02:31 PM gloops: oh well, if its cut as well thats half the job done
02:32 PM gloops: universal fittings and brackets for that stuff
02:32 PM lostinsip: and CNC router parts kindly provide a cutting list!
02:33 PM lostinsip: i will still go for their drives and electronics as I need to make sure I dont start a build project that becomes the project rater than the business
02:34 PM gloops: youd probably find identical electrics elsewhere too, but i know what youre saying
02:36 PM lostinsip: yeah I have been looking carefully
02:36 PM lostinsip: and basically could build it all with bits sourced in the UK
02:37 PM lostinsip: but multiple suppliers and the need to ensure everything was set up in terms of config files etc. etc.
02:38 PM lostinsip: and my gf (who is half the business) knows i could get lost in tinkering and we wont make any mony haha
02:38 PM Tom_L: SW should have a lib for that stuff...
02:38 PM Tom_L: what stuff are you planning to make?
02:40 PM Wolf__: really, if it was me setting up to make wood and metal things, I would just DIY a router and plasma table
02:40 PM lostinsip: SW?
02:40 PM lostinsip: oh software sorry
02:40 PM Wolf__: vs a 2 in one
02:40 PM lostinsip: its a fair point Wolf__
02:41 PM Tom_L: not sure i'd do a dual purpose one personally
02:41 PM lostinsip: Its definitely being considered
02:41 PM Wolf__: 2 in one might seem like a good idea for a prototyping shop or something, but possible production machine, dual use is a bad idea
02:42 PM lostinsip: we will be doing a fair bit of prototyping at first and are not looking at high volumes initially
02:42 PM lostinsip: hence the dual machine, but I am giving it all a lot of thought
02:43 PM lostinsip: if I had more experience in the CNC control side and more time I would go all DIY
02:44 PM Tom_L: we're here to help
02:44 PM Wolf__: better to learn it
02:44 PM lostinsip: thanks Tom_L :)
02:44 PM Wolf__: then to have a machine that you cant trouble shoot or repair
02:45 PM lostinsip: Wolf__: yeah definitely
02:45 PM Wolf__: and if I can figure the cnc stuff out, anyone can lol
02:45 PM Tom_L: provided you take good notes :)
02:46 PM lostinsip: I am quite keen to source as much of the kit in the UK as I can, its mostly from china amyway lol
02:47 PM lostinsip: difficulty comes in convincing my partner im not going to buy a lot of kit which i turn into a non functional unit
02:47 PM gloops: it is a stepper motor build i think? up and running in a few hours if you pester people in here while youre doing it heh
02:48 PM lostinsip: well that is very encouraging gloops
02:50 PM lostinsip: I really want to know the machine well, and if im honest id rather use hybrid steppers with encoders
02:50 PM lostinsip: as for me open loop control over an 8x4 bed seems like it could be prone to issues
02:51 PM lostinsip: so much to learn!
02:52 PM Wolf__: thats kinda how I wanted to do my plasma, clear-path servos and gear rack drive
02:52 PM lostinsip: yeah it seems a better set-up
02:53 PM lostinsip: I need to try and source a torch height control system in the uk thats proving harder
02:53 PM gloops: http://www.cncrouterparts.com/plug-and-play-nema-23-cnc-control-system-p-260.html
02:54 PM gloops: i mean that would be nice to just hang on the wall and connect up
02:54 PM lostinsip: Yeah I was looking at the NEMA 34 but same idea
02:55 PM Wolf__: I’m doing a mesa controlled setup
02:55 PM gloops: $1500 though, can be done a lot cheaper, with a bit of spare time
02:55 PM lostinsip: its hitting a good balance between going to half a dozen suppliers ordering bits and making lists etc. and just paying one supplier
02:55 PM lostinsip: yeah gloops
02:56 PM Wolf__: 0.o
02:56 PM lostinsip: and I do have some time, but also have to concrete the floor of the building, install power and extend the compressed air
02:56 PM Wolf__: $1500...
02:56 PM lostinsip: mesa controled Wolf__ ?
02:57 PM Wolf__: could do 4x 420oz-in clear path for $1200~ mesa 7i96 and THCad for damn near the same cost
02:57 PM Wolf__: https://mesaus.com
02:58 PM lostinsip: thanks i will take a look
02:58 PM lostinsip: the big issue with bringing anything from the US is its a major pain with import and duty
02:58 PM gloops: https://www.ebay.co.uk/itm/German-Ship-3-axis-Nema23-stepper-motor-425oz-in-Drivers-DM542A-CNC-kit/262956834538?
02:59 PM lostinsip: hence trying to source in the uk or europe
03:00 PM lostinsip: yeah i have looked at various kit similar gloops
03:01 PM Wolf__: the mesa board I mentioned is just a i/o & step gen interface for lcnc
03:01 PM lostinsip: ah ok
03:01 PM Wolf__: also handles the encoder input from the torch height controller ad card
03:02 PM lostinsip: I am on a pretty steep learning curve here after years in the energy industry
03:02 PM lostinsip: yeah torch height control is pretty important for me to sort out
03:03 PM Wolf__: I just wish I had a newer plasma machine w/ built in voltage divider but its really not that big of a thing
03:04 PM lostinsip: I will be replacing my old saf plasma with a new hypertherm for this project
03:05 PM lostinsip: there is an interface in that machine, although i have no idea how that connects to the z axis
03:06 PM Wolf__: the thcad board takes the torch arc voltage (post divider) and converts it to analog output to the mesa encoder input, then linux cnc controls the Z axis directly
03:18 PM gloops: well, ill come from the other end of things - steppers, drivers BOB - simple config, reliable, covers many pro applications - cheap
03:18 PM gloops: Ichs who was in here built hundreds of machines a year for schools using the cheapo chinese components, worked like a dream
03:18 PM Wolf__: the clearpath servos are closed loop hybrid using step/dir input
03:19 PM Wolf__: so same as a stepper rig
03:20 PM lostinsip: yeah the clearpath unit slook very nice
03:20 PM Wolf__: very, kinda spendy but simple
03:21 PM lostinsip: but given the NEMA34 stepper kit from CNC router parts is over 2000 dollars....
03:22 PM lostinsip: i need to read more about the clearpath units, anything that reduces panel wiring is good
03:22 PM Wolf__: that was part of my draw to them
03:23 PM lostinsip: In the end its about getting a working machine at reasonable cost rather than a very cheap machine, i it can have a closed loop system easilly that would be awesome
03:24 PM Nick001-shop: Is there a 5i25 card that fits into a pci-e ?
03:27 PM lostinsip: JT-Shop: you say a 7i96 card and Nick001-shop mentions a 5i25 can someone give me a quick overview of what the codes mean?
03:28 PM Wolf__: mesa card part numbers
03:29 PM lostinsip: ah ok
03:30 PM lostinsip: so you would recomend the mesa cards as control boards for a linux cnc project
03:30 PM Wolf__: 5i25 = PCI i/o card, 6i25 PCIE, 7i96 is ethernet step/dir i/o card
03:30 PM lostinsip: ok cool
03:31 PM * lostinsip reaches up to the next ledge on the vertical learning curve
03:31 PM Wolf__: LPT breakout board works as well, but i’m not sure on the encoder input for a THC
03:32 PM Wolf__: I’m using a 7i96 (https://mesaus.com/index.php?route=product/product&path=66&product_id=150) + mesa THCad (https://mesaus.com/index.php?route=product/product&path=65&product_id=64) on my plasma build
03:33 PM lostinsip: ok cool thanks
03:34 PM lostinsip: i am being wowed by clearpaths product videos haha
03:34 PM Wolf__: lol
03:35 PM Wolf__: I had nema 23 sets stocked up already so I just used those right now
03:35 PM lostinsip: always good to use what you have
03:36 PM lostinsip: the 7i96 looks great
03:37 PM lostinsip: ethernet capability is good, in vague looking at some of the chinese control kit there is still stuff using parralel ports
03:37 PM lostinsip: which i had assumed were a thing of the past!
03:39 PM lostinsip: so I assume that with step and direction output the 7i96 would drive a clearpath sd without anything more than a cable?
03:39 PM lostinsip: and a PSU for the motor of course
03:39 PM Wolf__: yup
03:40 PM lostinsip: ok thats cool
03:41 PM lostinsip: for general purpose i/o for things like limit switches etc i guess another board is needed?
03:41 PM gloops: what kind of stuff is this machine going to make lostinsip?
03:44 PM lostinsip: well without giving away any trade secrets there will be some making to order of plasma parts for a few businesses and maybe some routed components
03:44 PM Wolf__: nope, the 7i96 has I/O screw headers
03:44 PM lostinsip: but the main thrust will be a range of designs we have for some decorative designs using stainles, wood and slate
03:45 PM Wolf__: almost enough if you want to go nuts w/ min/max limit switches lol
03:45 PM lostinsip: thats great, i will read the specs more closely
03:46 PM lostinsip: compatibility with linux is a big plus as it saves a windows license and i loathe windows
03:46 PM Deejay: gn8
03:47 PM lostinsip: guys, just going to have some supper back in 15 or so
03:47 PM lostinsip: you have all been really helpful im very grateful
03:48 PM JT-Shop: lostinsip: 7i96 is a stepper card that uses ethernet, a 5i25 is a PCI card and a 7i76 is the stepper daughter card for the 5i25 or 6i25 or 7i92
03:49 PM sensille: gloops: also although stepper as well as driver are set to 3A, i think it means 3A max for the driver and 3A RMS for the stepper
03:50 PM gloops: well you dont want to exceed the amps rating for the motor
03:50 PM gloops: you can put more volts in
03:51 PM sensille: i mean the rating use a different base, max vs. rms
03:51 PM sensille: but not 100% sure, it's never stated that clearly
03:52 PM gloops: ahh right
03:56 PM gloops: what are the motors sensille 270 oz?
04:06 PM Nick001-shop: <JT-Shop>Is there a 5i25 card for a pci-e 2.0x1 slot? I have an ITX motherboard with a single slot
04:08 PM sensille: gloops: they don't say. but after thinking more about it i think that steppers are normally rated max, while drivers are rated RMS, but the datasheet for the driver says 3.5A max. that doesn't mean that the 3A marked on the board are 3A max, though :-/
04:10 PM sensille: anyway, enough frustration for today
04:10 PM rmu: Nick001-shop: 6i25 ?
04:19 PM jthornton: Nick001-shop: 6i25 is for pcie
04:21 PM lostinsip: back from eating
04:21 PM lostinsip: been having a look at clearpath motors a bit more too
04:23 PM Loetmichel: *gnhihi* $me just got a bunch new Tshirts with writing on it from the wife. best two: "KLAR! MACHE ICH! (nur nicht jetzt)" (SURE, WILL DO! (just not right now) and "Ein Herz aus Gold, Nerven wie Drahtseile, ein eiserner Willen... Für so viel Metall ist mein Gewicht eigentlich OK!" (A heart of gold, nerves like steel cable, an iron will.. For so much metal my weight is allright!)
04:24 PM Nick001-shop: will it drive a 7i77?
04:30 PM JT-Shop: Nick001-shop: a 5i25, 6i25 or 7i92 can have a 7i77 as a daughter card
04:31 PM Nick001-shop: Ok - what is a 7i77D vs 7i77?
04:38 PM `Wolf_: one they put a D at the end of the number
04:40 PM Nick001-shop: found it - the D is for a DIN rail mount -
04:41 PM Nick001-shop: I think
04:41 PM `Wolf_: Isolated I/O includes 32 sinking inputs and 16 sourcing outputs on 7i77
04:41 PM `Wolf_: Isolated I/O includes 32 sinking inputs and 16 sinking outputs 7i77D
04:44 PM Nick001-shop: Thanks - more stuff to figure out
04:44 PM `Wolf_: get 1 of each
04:44 PM `Wolf_: =)
04:46 PM Nick001-shop: Sure - just to add to my shelves of stuff
04:47 PM JT-Shop: Nick001-shop: nope different outputs IIRC
04:48 PM `Wolf_: I think the outputs only really make a diff if you are doing a retofit
04:48 PM JT-Shop: `Wolf_: got it right :)
04:48 PM JT-Shop: yep some machines need sourcing some need sinking
04:48 PM JT-Shop: LAN cable in the chicken coop tested out first time :)
04:48 PM `Wolf_: took a min for it to click, I remember wondering the same thing when I started look at mesa stuff
04:49 PM Nick001-shop: I guess I need the sourcing as that's whats working for me now
04:50 PM `Wolf_: keep in mind thats the outputs, like coolant pumps and whatnot
04:50 PM Tom_L: damn! we're actually talking about cnc today :)
04:50 PM Nick001-shop: happens sometimes
04:51 PM lostinsip: been looking at various motion control boards that might be available this side of the pond
04:51 PM lostinsip: https://www.cnc4you.co.uk/UC300
04:52 PM `Wolf_: ick, just no
04:52 PM Tom_L: not so much
04:52 PM JT-Shop: lostinsip: I ship to UK
04:52 PM lostinsip: ok i will take that as its shit lol
04:52 PM Tom_L: mesa is the way to go period.
04:52 PM lostinsip: right im not going to argue with that
04:53 PM `Wolf_: lostinsip: JT = mesaus
04:53 PM Tom_L: pcw = mesanet
04:53 PM JT-Shop: pcw is Mesa :)
04:53 PM Tom_L: you're just the banner rep
04:54 PM JT-Shop: :)
04:54 PM Tom_L: and chicken patrol
04:55 PM JT-Shop: aye the chicken whisperer
04:55 PM Tom_L: what's up with the door?
04:56 PM JT-Shop: just ran a LAN cable out to the new coop and going to put something on the other end now :)
04:57 PM lostinsip: you have an automated chicken coop?
04:57 PM Tom_L: of course he does
04:58 PM roycroft: you wouldn't believe how complicated the g-code is to make an egg
04:59 PM jthornton: lostinsip: aye an automated chicken coop
04:59 PM lostinsip: awesome
04:59 PM Tom_L: jthornton, did you see this? https://sct-usa.com/thread-mill-code-generator/
05:00 PM Tom_L: thought that looked rather handy
05:00 PM jthornton: no, not seen that
05:01 PM jthornton: lostinsip: the new coop has a 7" touch screen lol both are controlled by Raspberry Pi 3's
05:01 PM Tom_L: posted the other day but i think everybody was asleep
05:08 PM lostinsip: jthornton: thats awesome, i love raspberry pi systems
05:08 PM lostinsip: and the boards are made in wales!
05:08 PM lostinsip: (which is were i live)
05:14 PM lostinsip: I will now retreat i think and sleep on the wealth of information i have received!
05:15 PM gregcnc: Tom_L have you used it? seems good but outputs e notation values for I?
05:16 PM Tom_L: not yet
05:16 PM Tom_L: hmm
05:16 PM lostinsip: big thanks Wolf__ , gloops , JT-Shop and everyone for your help and making me welcome
05:16 PM lostinsip: I will be back with no doubt more stupid questions soon!
05:17 PM Tom_L: only stupid one is the one that isn't asked
05:17 PM `Wolf_: np
05:17 PM lostinsip: thanks Tom_L :)
05:17 PM lostinsip: gn all
05:17 PM * `Wolf_ knows the answers because he has already asked them
05:17 PM Tom_L: gregcnc, i was gonna try to make a macro for my cad cam to do that and i went searching for ideas and ran across that
05:19 PM gregcnc: just looking at the code looks right, but I'm not sure how many controls understand
05:19 PM gregcnc: N94 G03 X0. Y0. Z0.0394 I5.9886E-5 J-0.2866
05:19 PM Tom_L: heh
05:19 PM Tom_L: i wonder if that's a 'feature' of the language it was coded in
05:20 PM jthornton: and angry ip says the new coop is on the LAN!
05:21 PM Jymmm: Electrical symbols for contactor, is this the contacts --> || and this the coil --> |\| ???
05:23 PM jthornton: no, first one is Normally open and the second is Normally closed contacts
05:27 PM Jymmm: jthornton: Ah, ok, thank you
05:27 PM jthornton: yw
05:31 PM jthornton: did you get your heater going?
05:31 PM Jymmm: No, had to order the cap yesterday and got it today, but then found another relay that looks crispy (?) and it's a factory item, so bought a generic replacement, which man not physically fit, and it's such a rats nest in there
05:31 PM Jymmm: Even have a crimp terminal come off the wire it was on, so need to fix that now too
05:31 PM jthornton: damn the bad luck
05:33 PM jthornton: someone been in there before messing with it?
05:33 PM Jymmm: and its freezing and only have 18" clearance to the cabinet.
05:34 PM Jymmm: No well maybe over the years of repairs, or it simply worked itself loose from vibration of the years
05:36 PM Jymmm: jthornton: But, at least I have the parts now. I think I got lucky finding the PTC in stock locally and only $30
05:36 PM andypugh: You can buy a lot of eggs for $30
05:37 PM Tom_L: it's just not the same...
05:37 PM andypugh: I admit chickens can be fairly cute, but parrots seem a lot more fun and hold a better conversation
05:38 PM Tom_L: they can tell on you too
05:39 PM jthornton: well parrots don't lay eggs every day and you would be surprised how well I speak chicken or at least understand chicken speak
05:39 PM Jymmm: The chicken whisprerer?
05:39 PM jthornton: something like that yea
05:40 PM Jymmm: =)
06:05 PM CaptHindsight: Jymmm: that ring is a spare
06:05 PM CaptHindsight: it's common for the Chinese to just toss those into the box :)
06:27 PM andypugh: night all
07:06 PM MarcelineVQ: the snow is unreal here right now, you getting covered at your place XXCoder?
07:37 PM Jymmm: CaptHindsight: gotcha, wel I reattched it anyway
07:37 PM Jymmm: CaptHindsight: ...for shits and giggles
07:38 PM CaptHindsight: as long as the compressor doesn't blow a seal or that things oxidizes through somewhere you should be good for a while
07:39 PM CaptHindsight: motors bearings are common
07:39 PM CaptHindsight: so give it all a good cleaning without blowing crap into the motor or anything else that needs airflow to stay cool
07:40 PM CaptHindsight: i have some similar dustless HVAC units
07:41 PM CaptHindsight: they were all NOS, new old stock
07:41 PM CaptHindsight: I'm just sure to keep them as clean and clear of debris as possible
07:57 PM skunkworks: i say we ended up with 12+ inches of snow
07:57 PM Jymmm: skunkworks: yuck
07:58 PM Jymmm: CaptHindsight: It's "ring heater" maybe 1/4" diameter. It fits around the base of the sealed compressor much like a hose clamp
08:02 PM CaptHindsight: Jymmm: was joking earlier, what year is your unit from?
08:02 PM Jymmm: CaptHindsight: The factory says it's a 70's/80's unit
08:04 PM Jymmm: CaptHindsight: The wiring giagram for that series is dated NOV 1982
08:04 PM Jymmm: I got them to email it to me =)
08:42 PM Tom_L: thread mill question: how many passes do you typically take?
08:43 PM Tom_L: it's easier on the single point mill to take more than one
08:44 PM Tom_L: if i take 2 on a 1/4-20 nc that's about .015" per pass
08:45 PM Tom_L: (starting to gather info to write a macro for my cad cam)
09:09 PM CaptHindsight: https://sct-usa.com/thread-mill-code-generator/
09:11 PM CaptHindsight: http://www.guhring.com/Tech/threadmillgenerator
09:11 PM CaptHindsight: http://www.threadmillsusa.com/programming.htm
09:13 PM CaptHindsight: https://www.productivity.com/robotics/resources/thread-mill-programs/
09:13 PM CaptHindsight: compare what thse spit out
09:13 PM CaptHindsight: https://www.cncci.com/products/Thread%20mill%20generator.htm
09:13 PM Roguish: depends on how much the thread mill tool costs.....
09:16 PM CaptHindsight: https://www.sandvik.coromant.com/SiteCollectionDocuments/downloads/global/technical%20guides/en-gb/C-2920-031.pdf start at page 112
09:19 PM CaptHindsight: https://www.cnccookbook.com/easy-guide-to-threadmills-calculator-speeds-feeds-programming/
09:22 PM CaptHindsight: https://www.youtube.com/watch?v=O0mq2bIzc6g
09:24 PM CaptHindsight: https://www.youtube.com/watch?v=ggo24jmlpWA
10:08 PM Tom_L: i posted that first one the other day
10:09 PM Tom_L: CaptHindsight i've got a pretty good idea
10:09 PM Tom_L: thanks
11:12 PM Tom_L: thread macro close to working..