#linuxcnc Logs
Mar 21 2024
#linuxcnc Calendar
07:07 AM lcnc-relay: <JT> morning
08:10 AM ndnihil is now known as nihil_
08:10 AM nihil_ is now known as nihil
08:10 AM nihil is now known as ndnihil
09:39 AM mrec_: The Mitsubishi support is nothing but bitching around...
09:39 AM mrec_: You ask them something, they will reply nonsense and want to send someone to inspect that machine
09:40 AM mrec_: surely pay for the visit and the outcome? .. I see that the amplifier doesn't work you will have to replace that one.
09:40 AM mrec_: as if I cannot see that myself.
09:43 AM mrec_: how to load a certain confguration file from the manufacturer? deep secret, cannot tell
09:43 AM mrec_: once I'm done evaluating that machine I'll kick out that Mitsubishi Controller and put LinuxCNC on it
09:47 AM mrec_: all the detailed reports they fully ignored as well just wasting my time..
10:19 AM wangzhen: may i speaking
10:20 AM wangzhen: tong yi ge ren
10:23 AM wangzhen: i goto bed .goodbye
10:34 AM wangzhen: say
11:07 AM roycroft: volkswagner:
11:07 AM roycroft: condition caller_id_number ^(4[0-9][0-9])$
11:08 AM roycroft: that is the first line in a dialplan for outbound routing extensions 400-499
11:09 AM * roycroft thinks that's what volkswagner is trying to do, but he often thinks wrong
11:10 AM * Tom_L missed any reference to volkswagner in this channel until now
11:10 AM roycroft: oops
11:10 AM roycroft: mischan :)
11:10 AM Tom_L: thought so
11:10 AM roycroft: sorry
11:10 AM Tom_L: he might like to know though :)
11:11 AM bjorkint0sh: yep. roycroft is in a telecom/networking channel
11:11 AM bjorkint0sh: but he misses traffic in this one.
11:11 AM roycroft: sadly, yes
11:11 AM roycroft: i had a really weird problem with a pbx, and i've been hanging on out on a telecom channel to get it sorted
11:11 AM roycroft: well, i don't know that it's a really weird problem - it's the same problem i've had for 30 years
11:12 AM roycroft: "boss does something, stuff breaks, and when asked, the thing he tells me he did is not the thing he did"
11:19 AM bjorkint0sh: is it an old panasonic?
11:47 AM Unterhausen: sometimes I think roycroft is the source for the register's bofh articles
11:54 AM bjorkint0sh: haha. those are golden.
12:15 PM lcnc-relay: <skunkworks8841> got my progressive glasses today.. Certainly going to take some getting used to
12:16 PM skunkworks: No more looking over the glasses..
12:17 PM Tom_L: tried some, never could get used to them
12:20 PM skunkworks: well - I could do readers but I think I would lose them all the time
12:21 PM Roguish: progressives are fine, ya just gotta get used to them. only one way.... wear 'em
12:21 PM skunkworks: That is what it feels lik
12:21 PM skunkworks: like
12:22 PM skunkworks: Progressives - where only one spot is focused... lol
12:43 PM bjorkint0sh: skunkworks, luckily readers are cheap.
12:44 PM bjorkint0sh: I get mine from dollar tree or dollar general.
12:44 PM bjorkint0sh: works just fine too.
02:04 PM XXCoder: ugh cant wait for election to be over so i stop getting calls
02:06 PM Roguish-shop: XXCoder, i get those too. and fracking texts. I block all of them and report as spam
02:07 PM XXCoder: whats funny is that those robotcalls isnt designed for calling vp numbers
02:07 PM XXCoder: they dont let it ring long enough
02:07 PM XXCoder: so I literally cant answer anyway lol
02:09 PM roycroft: the problem is that these days the next election cycle starts about 7 seconds after the previous one ends
02:09 PM XXCoder: its the election year that have it the highest
02:10 PM XXCoder: i had gotten 5 calls while I was asleep
02:10 PM XXCoder: non election average per month is one
02:34 PM Unterhausen: I am unsubscribing from campaign emails as fast as I can. C'mon
02:34 PM Unterhausen: no calls at all, we have a primary coming up
03:30 PM Unterhausen: I need to put a ladder in the shower without breaking the pan. Joy
03:33 PM CloudEvil: Fill the shower pan with mercury and then float the ladder on a concrete paver.
03:45 PM bjorkint0sh: whahahaat?
03:45 PM bjorkint0sh: where would one even get that much mercury from?
03:50 PM Unterhausen: weather building at Penn State, given the number of times I have seen crowds of people in bunny suits running towards the building
03:50 PM Unterhausen: there used to be a very large manometer in the mechanical engineering building until someone broke it. That was a circus
04:03 PM Roguish-shop: i worked at Hughes Aircraft a long time ago. there was a room full of mercury vapor vacuum pumps. mercury beads all over the floor....
04:05 PM Roguish-shop: pumping down CRT display tubes for fighter jets.
04:12 PM Unterhausen: the me prof with the big manometer was one of those "safety third" types. Retired one day when they shut down his lab for being obviously unsafe
04:13 PM Unterhausen: high voltage lines stretched across the room at chest height, for example. Making friends with the janitor has its perks, he showed me the lab
04:13 PM Unterhausen: you had to duck under the wire to get into the lab
04:23 PM Roguish: my university had a nuke reactor.....about 10watts
04:24 PM Roguish: maybe less.
04:31 PM bjorkint0sh: was this in Oregon?
04:32 PM bjorkint0sh: there aren't many universities with reactors.
04:33 PM Roguish: Cal Poly, San Luis Obispo. CA
04:34 PM Roguish: 70's
04:34 PM bjorkint0sh: I didn't know they had one there.
04:34 PM bjorkint0sh: I've been there.
04:34 PM bjorkint0sh: Weird Al's alma mater.
04:34 PM bjorkint0sh: he studied Architecture.
04:35 PM bjorkint0sh: very hilly town.
04:35 PM Roguish: yup
04:35 PM Roguish: agriculture, engineering, and architecture.
04:43 PM Unterhausen: both Va Tech and Penn state have reactors. It's safe, trust us
04:44 PM bjorkint0sh: well everything went to shit after prometheus returned with a lighter.
04:44 PM bjorkint0sh: the earth has been slowly warming up since that day.
04:46 PM Unterhausen: I would much prefer if nukies would say, yeah, it's dangerous every once in a while
04:47 PM Unterhausen: nukeE used to be part of the PSU ME department. One day the head of that program emailed everyone saying that Fukashima was safe. That was the first day they had a major explosion
04:47 PM bjorkint0sh: well to be fair, Daichi was to be decommissioned 3 weeks before the front fell off the plant.
04:48 PM bjorkint0sh: plus, would you believe that when the plant was first constructed, civil engineers were still a bit doubtful about the causes of earthquakes? they were just accepting plate tectonics movement as the primary cause of it!
04:49 PM bjorkint0sh: it had operated for a good 40-something years prior to that wretched day. 3 people died in all, due to tsunami related accidents.
04:49 PM bjorkint0sh: could they have been a whole lot more serious about safety? absolutely.
04:50 PM bjorkint0sh: and they should have. they weren't. they became rather complacent.
04:50 PM Unterhausen: that's all I ask. It just scares me that their main job is to convince me it's safe, and not necessarily make sure it's safe
04:50 PM bjorkint0sh: but, nukes are cleaner than anything else we've got going right now. uranium the size of a coke can can power a whole damned town.
04:50 PM bjorkint0sh: that's stupendous power which should be handled with deep respect.
04:51 PM bjorkint0sh: it just so happens that they were first generation GE plants scaled up from what were designed for sub marines.
04:51 PM bjorkint0sh: very careless of the engineers.
04:52 PM Unterhausen: Didn't steve martin have a joke about a nose nuke?
04:53 PM bjorkint0sh: heh. never heard it.
04:53 PM Unterhausen: I'm not getting one of those, no matter how cheap the electricity is
04:54 PM Unterhausen: problem is he made Cyrano, now everything involving noses and Steve Martin resolves back to that movie
04:54 PM Unterhausen: Actually called "Roxanne"
04:54 PM Unterhausen: Cyrano erasure
04:54 PM bjorkint0sh: yeah that's what I came up with too.
05:59 PM wangzhen: x
06:53 PM solarwind_: cats absolutely understand when humans are trying to help them
06:53 PM solarwind_: my little kitty baby cot a metal chip stuck in her paw and came to me meowing and rolling over
06:53 PM roycroft: yes, they do
06:54 PM roycroft: and they show their apprciation by scratching and/or biting their human after assistance has been rendered
06:54 PM solarwind_: and was really still and cooperative when I was pulling it out even though it was painful
06:54 PM roycroft: because inflicting pain is how they express their love
06:54 PM solarwind_: and now she's running around and jumping again
06:55 PM solarwind_ is now known as solarwind
06:56 PM lcnc-relay: <skunkworks8841> https://jauriarts.org/_matrix/media/v3/download/jauriarts.org/WMeNJOCLgnYqXdSBuMxTGZcK/PXL_20240321_234902452.jpg
06:56 PM lcnc-relay: <skunkworks8841> it moves
06:56 PM lcnc-relay: <skunkworks8841> needs a bit of tlc for sure
06:58 PM solarwind: that is a beautiful truck, I would definitely buy
06:58 PM solarwind: look at those clearances and the size of those wheels
06:59 PM bjorkint0sh: it resembles a power wagon: https://en.wikipedia.org/wiki/Dodge_Power_Wagon#/media/File:54_Dodge_Power_Wagon_1_Ton_Pick-Up_(7154796521).jpg
07:00 PM solarwind: nice heavy steel frame, designed to kill a pedestrian at 1 km/h on impact
07:00 PM solarwind: would be great for towing
07:01 PM bjorkint0sh: it doesn't kill pedestrians, it awards them darwin awards.
07:04 PM lcnc-relay: <skunkworks8841> It is a 42 chevy G-506 army truck
07:04 PM lcnc-relay: <skunkworks8841> carb cleaning seemed to work
07:05 PM lcnc-relay: <skunkworks8841> it is certainly stiff.. I think it needs a go - through
07:05 PM lcnc-relay: <skunkworks8841> no power steering! wth lol
07:06 PM bjorkint0sh: the power comes from the driver.
07:07 PM bjorkint0sh: correction. commandeer.
07:07 PM lcnc-relay: <skunkworks8841> armstrong power steering..
07:07 PM bjorkint0sh: exactly that!
07:07 PM bjorkint0sh: it's an arm wrestling contest.
07:11 PM lcnc-relay: <schoch_> how often does lcnc need rps updates for stuff like g95/g97? seems like 1ms may be overkill?
07:12 PM lcnc-relay: <skunkworks8841> lol - how fast are you willing to give it?
07:13 PM lcnc-relay: <zincboy_ca_on> Should be the same as your servo period for optimal planning.
07:13 PM lcnc-relay: <schoch_> hmmm
07:13 PM lcnc-relay: <skunkworks8841> https://www.youtube.com/watch?v=tlEGmAbvuZs
07:14 PM lcnc-relay: <schoch_> my spindle is uncontrolled 😦
07:15 PM lcnc-relay: <schoch_> i've been avoiding hacking in speed control, it is a sewing servo and uses a hall effect sensor for speed input.
07:15 PM lcnc-relay: <schoch_> also my "high gear" is not in the right place and I need to pull the spindle to fix it....
07:16 PM lcnc-relay: <schoch_> i spent the morning swapping out the saddle because the one I got from LMS wasn't flat on the left side and the whole cross slide would rock under load.
07:17 PM lcnc-relay: <schoch_> i was able to cut steel with LCNC for the first time though.
07:17 PM lcnc-relay: <schoch_> part turned out pretty good
07:18 PM lcnc-relay: <schoch_> I think the velocity calculation code for linuxcnc-rio is wrong, it sorta works but not at low speed and not at high speed.
07:20 PM lcnc-relay: <schoch_> I wrote a hack component a while back that worked better but I was thinking that there are several reasons 1ms is not great.
07:20 PM lcnc-relay: <schoch_> reading litexcnc they use an average of samples, that leads me to believe more revolutions per rps calculation is better
07:21 PM lcnc-relay: <schoch_> the linuxcnc-rio rps is like 8 lines, litexcnc and the mesa code are like 800 lines.
07:26 PM lcnc-relay: <schoch_> i had another question: is spindle encoder postion-scale used for anything?
07:31 PM lcnc-relay: <skunkworks8841> Threading
07:31 PM lcnc-relay: <skunkworks8841> You want each rotation to be 1
07:31 PM lcnc-relay: <zincboy_ca_on> Synchronizing your A or C axis with the spindle.
07:44 PM Leeloo_ is now known as Leeloo
07:44 PM lcnc-relay: <schoch_> skunkworks: there is another scale value for normalizing revolutions ... position = (raw_count/ppr)
07:45 PM lcnc-relay: <schoch_> zincboy_ca_on do you know if it is used anywhere else? g33 and Z don't seem to use it but i've not set it to anything other than 1
07:46 PM lcnc-relay: <schoch_> Z scale seems to drive "spindle gearing"
07:47 PM lcnc-relay: <zincboy_ca_on> It is fed back to the motion spindle.x.revs input but I don't know if the planner actually uses it for anything?
07:50 PM lcnc-relay: <skunkworks8841> Hmm - I might be a bit fuzzy about it
07:54 PM lcnc-relay: <schoch_> i thought revs was the actual encoder counts
07:55 PM lcnc-relay: <zincboy_ca_on> Yes, which is encoder.x.position. It isn't scaled as that is done with the value in the ini file.
07:57 PM lcnc-relay: <schoch_> i just looked at a couple mesa configs and they don't seem to use position-scale for encoders
07:57 PM lcnc-relay: <schoch_> er for "spindle encoders"
07:57 PM Tom_L: i think it's a scale set with the mesa settings
07:58 PM lcnc-relay: <skunkworks8841> https://www.youtube.com/watch?v=PFnW7gP1K4A
07:58 PM lcnc-relay: <schoch_> setp hm2_7i76e.0.encoder.00.scale [SPINDLE_0]ENCODER_SCALE
08:01 PM lcnc-relay: <JT> Schools out
08:06 PM Tom_L: zoom zoom there goes JT
08:13 PM lcnc-relay: <JT> https://jauriarts.org/_matrix/media/v3/download/matrix.org/bBKCJiYzNvlOaMHDEMiSHdQH/_REV0124-small.JPG
08:15 PM Tom_L: flyin home tomorrow?
09:50 PM lcnc-relay: <JT> schoch_: Yup