#linuxcnc Logs

Nov 22 2022

#linuxcnc Calendar

12:54 AM pere: hi
04:42 AM Tom_L: morning
04:46 AM XXCoder: xxcoder[m]: hey self
04:52 AM XXCoder: test
04:58 AM JT-Cave: morning
04:58 AM XXCoder: yo
05:01 AM travis_farmer: G'Morning, a warm 34F this morning...
06:13 AM Centurion_Dan1 is now known as Centurion_Dan
08:06 AM travis_farmer: rather annoying when IRC keeps disconnecting on me...
08:32 AM Loetmichel: *muhahaha!* Co-worker just went to the bathroom with the watering can under his arm... "Damn ground rod for the Measurement chamber!!!1111" ... comes back, opens um a plastic cap in the middle of the 1000m^2 company floor right next to the chamber, pours a quarter pound salt and 10 liter water down the 200mm diameter hole, closes the cap, goes for a smoke. Coming back he starts the Spectrum
08:32 AM Loetmichel: analyzer again: "AH! NOW its like it should be..." :D
08:34 AM travis-farmer is now known as travis_farmer
08:34 AM Loetmichel: ... whoever designed that grounding rod smack dab in the middle of a biig concrete slab thinking there would be sufficient water to keep the earth conducting should be slapped. Then slapped again... :)
08:35 AM travis_farmer: yeah, i would think placing the ground rod under the drip-zone of the roof would be best. in the middle of a slab... dumb idea
08:37 AM Loetmichel: indeed, travis
09:22 AM CloudEvil: Diddn't you know? The earth is a superconducting sphere with infinite propagation speed?
09:28 AM rmu: Loetmichel: no wonder your ground rods dissolve if you regularly bath them in salt water
10:07 AM Loetmichel: rmu: doubt it. they are galvanized
10:07 AM Loetmichel: and it doesent dissolve, the earth simply gets to dry because of in the middle of the 30m by 30m concrete slab
10:07 AM rmu: Loetmichel: that doesn't really help
10:09 AM Loetmichel: rmu: my guess is that the rod is simply not long enough to reach "permanently moist" ground
10:11 AM rmu: hope your facility won't get struck by lightning
11:02 AM Loetmichel: rmu: that grounding rod os ONLY for the EMI measurement chamber
11:03 AM Loetmichel: the building has approbaite grounding on the outside for code. The camber needs a seperate, low inductance path though for the measurements up to 10GHz to be correct.
11:04 AM Loetmichel: hence the extra rod in the middle of the building, right next to the chamber
11:04 AM rmu: seems strange to not connect it to the grounding of the building, but what do i know
11:05 AM roycroft: when i was building fiber huts i used to specify the typical grounding ring, where ground rods were pounded into the ground, just below the surface, just outside the building foundation
11:05 AM jpa-: rmu: connecting it to building mains ground would probably cause issues with noise from other devices
11:05 AM jpa-: but it would make sense to have placed it outside, just on different side of building
11:06 AM roycroft: after i did a few, a contractor who was pouring the footing for a radio tower for us suggested we install the ground ring directly below the foundation
11:06 AM roycroft: which was brilliant
11:06 AM Loetmichel: jpa-: the power supply for the chamber and the Spectrum analyzers is of course connected to the mains ground.
11:06 AM rmu: i'm not talking of mains ground, that is usually connected to ground, at least in europe, at a central point
11:06 AM roycroft: the rods would be a couple feet deeper, and it saved some work
11:06 AM Loetmichel: but the (steel) chamber itself needs to have a direct, low impedance path to ground
11:07 AM rmu: Loetmichel: if you are measuring inside the steel chamber it should not make any difference what you connect your chamber to
11:07 AM Loetmichel: apparently: it does
11:07 AM rmu: assuming it is "tight"
11:08 AM Loetmichel: even a steel chamber isnt "tight" enough if you have medium wave transmitters "close"
11:08 AM rmu: maybe it is a box without steel floor
11:08 AM Loetmichel: the SA can "see" remnants of the local radio station even with a closed door AND metal gaskets everywhere
11:09 AM Loetmichel: gets 20dB less if the grounding is low impedance though
11:09 AM rmu: hmm. would not expect that. but to be really "tight" you have to go some length to properly isolate all feedthroughs, and of course you should build your cage out of copper
11:09 AM Loetmichel: those Rhode and Schwarz analysers hear the proveribal coughing of a tick though.
11:10 AM Loetmichel: IIRC they go down to -80DbuV
11:10 AM Loetmichel: uV, not mV
11:38 AM rmu: Loetmichel: you mean -80 dB below 1µV? that would be what, 10 picovolt?
11:39 AM rmu: sorry 100picovolt
11:39 AM Loetmichel: rmu: proably. You can clearly see thermal noise on the analyzers, even with the input shorted.
11:40 AM rmu: at that level everything is a microphone
11:43 AM rmu: not surprising you see thermal noise.
11:44 AM Loetmichel: you can literally see someone sneezing in front of the analyzer.
11:44 AM rmu: probably because you disturb the cabling
11:45 AM Loetmichel: probably
11:45 AM Loetmichel: or charged particles changing position (the sneeze droplets)
11:47 AM rmu: repositioning of the cables can alter signal path
11:48 AM rmu: if done right, your measured speed of light is bigger than c ;-)
12:20 PM JT-Shop: it's 73°F and sunny
01:01 PM CaptHindsight[m]: https://youtu.be/kzaxBU0EVr0
01:02 PM CaptHindsight[m]: not mine ^^
01:02 PM CaptHindsight[m]: posted on the user list
01:19 PM pere: CaptHindsight[m]: nice. how many axes can linuxcnc handle?
01:25 PM pere: JT-Shop: <URL: https://www.yr.no/en/forecast/daily-table/1-72837/Norway/Oslo/Oslo/Oslo > - cloudy here. :)
01:26 PM JT-Shop: 9 axis 16 joints
01:26 PM JT-Shop: axes
01:26 PM Plaid43: Can I connect a 7i96s to a 7i77 with one of the 26 pin to 25 db connectors?   Which would let me drive a ton of stuff?
01:27 PM JT-Shop: yes, you need to flash the 7i96s with the correct firmware
01:27 PM Plaid43: Trying to understand what to buy before I dig into linuxcnc.
01:27 PM Plaid43: What's the "correct firmware"?
01:27 PM JT-Shop: my Mesa Configuration Tool can flash and build your configuration
01:28 PM JT-Shop: 7i96s_7i77d.bin
01:28 PM Plaid43: Got ya
01:28 PM JT-Shop: https://gnipsel.com/linuxcnc/mesact/index.html
01:29 PM Plaid43: I'll build my linuxcnc computer tonight and then I'll finally be able to run that.
01:29 PM JT-Shop: if your not in a huge hurry the 7i92T are being built now
01:31 PM JT-Shop: Plaid43, did you send me an email last night asking this question about a 408 machine or something like that?
01:32 PM Plaid43: Yeah
01:32 PM Plaid43: I'm getting my machine friday
01:33 PM JT-Shop: ok, I've not had a chance to reply since I saw it this morning
01:33 PM * JT-Shop gets back to making parts
01:34 PM Plaid43: JT-Shop  When will the 7i92Ts be ready?  Couple of days, or couple of weeks?
01:38 PM JT-Shop: couple of months
01:52 PM Plaid: Gota love the chip shortage...
01:53 PM roycroft: in a way i do
01:53 PM Plaid: Why?
01:53 PM roycroft: it's what we needed to turn the conversation seriosly to bringing manufacturing back to this country and not depending on our enemies for our critical supply chain
01:54 PM Plaid: Fair enough.  Any chip fabs starting up in the US?
01:54 PM roycroft: i don't recall the details, but yes
01:54 PM roycroft: that is happening
01:54 PM Plaid: Nice
01:58 PM roycroft: we'll see how it goes
01:58 PM roycroft: about 20 years ago hynix wanted to build a big chip fab plant here, in western oregon
01:59 PM roycroft: they got millions of dollars in tax breaks from the city of eugene, got the city to buil out a big road and utility infrastructure for them, in exchange for a promise to create heaps of new, high paying jobs
01:59 PM roycroft: they built the plant, hired a small fraction of the number they promised, at crappy wages, and then shut it down as soon as the tax breaks expired
02:01 PM roycroft: besides, they were a foreign country
02:02 PM roycroft: it's almost as bad to depend on a foreign-owned but us-based company for critical infrastructure as to depend on a foreign country for that infrastructure
02:04 PM Plaid: Yeah, I remember that
02:08 PM JT-Shop: A fab - which includes 1,200 multimillion-dollar tools and 1,500 pieces of utility equipment - takes about three years, $10 billion and 6,000 construction workers to complete. Three of the fab's four levels support the clean room, the only place where actual chip production occurs.
02:10 PM JT-Shop: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwi7xJydy8L7AhWUjYkEHRVHBJwQFnoECBIQAw&url=https%3A%2F%2Fwww.intel.com%2Fcontent%2Fdam%2Fwww%2Fcentral-libraries%2Fus%2Fen%2Fdocuments%2Fwhat-does-it-take-to-build-a-fab.pdf&usg=AOvVaw08blt7qK2Eoo5z8-gk3ERH
02:10 PM JT-Shop: damn google https://www.intel.com/content/dam/www/central-libraries/us/en/documents/what-does-it-take-to-build-a-fab.pdf
02:10 PM Plaid: JT-Shop   What about 7I80HD-16 + 7I48  ?  Would that leave me with input and output pins?
02:11 PM roycroft: hynix invested $1.5 billion in buiding their eugene plant
02:11 PM roycroft: the plant sold at auction a couple years ago for $6.5 million
02:11 PM roycroft: and is still vacant
02:13 PM Plaid: The mesa card is the most confusing part of linuxcnc (so far)
02:14 PM Plaid: Not angry, just confused :P
02:14 PM JT-Shop: Plaid, yes a that combo would work for the servos but you sill need some I/O?
02:15 PM Plaid: Yeah, for the limit switches, that kind of stuff
02:17 PM JT-Shop: no 7i37 cards in stock
02:21 PM roycroft: now that election spam is done, the holiday shopgasm spam is ramping up
02:21 PM Plaid: Jokes on them.  I already spent all my money on router stuff.
02:22 PM roycroft: i have a tradition of spending exactly $0.00 on black friday
02:23 PM Plaid: Over this week, I'll have blown my Christmas budget for the next 5 years or so.
02:25 PM Plaid: I'm buying a used router, and just picked up my mesa cards
02:36 PM JT-Shop: for the combination your picked you will either need a gender changer for the db25 or a DB25M to DB25M IEEE 1284 compliant parallel port cable
02:36 PM JT-Shop: or I can just put the correct cable in the box and call it a day
02:37 PM JT-Shop: Plaid, ^^
02:40 PM * roycroft has not heard back from avidcnc yet
02:43 PM JT-Shop: my friend that owns one of my favorite wineries found someone that wanted my brewing kit so we dropped it off yesterday
02:43 PM JT-Shop: proceeds going to the winery workers
02:48 PM XXCoder: last time I bought on black friday was few years ago, to buy food. i forgot it was black friday then
02:48 PM XXCoder: before that, in 2004 or so, to get real good deal on leather coat. still has coat
02:49 PM Plaid: JT-Shop  Put the correct cable in the box and call it a day.
02:49 PM Plaid: (My plan was to get a gender changer)
02:51 PM JT-Shop: I have one cable made up that's not in inventory as parts... I'm out of IDC 26 plugs
02:52 PM Plaid: Yeah, that's why I didn't order one of those:P   I figure I can get a gender changer from amazon.
02:53 PM JT-Shop: I'll fix you up
02:53 PM Plaid: Ty
02:54 PM Plaid: One less connector => one less source of issues
02:54 PM JT-Shop: yup
02:54 PM Plaid: You.  Card.  Work right. No be stupid.
03:06 PM Plaid: Is it okay to run a DC Servo amp without a load connected?  (I know don't DC it while running)
03:49 PM JT-Shop: I have two cables to pick from one is 6" and the other is 10", which one do you want pl
03:49 PM JT-Shop: Plaid,
03:50 PM Plaid: 6' is fine.  Whatever's best for you.
03:50 PM Plaid: It's all going to get crammed into a cabinet :P
03:51 PM Plaid: I'm not the "I planned out all the wiring ahead of time, this mount is going on this cabinet...."  guy
03:51 PM JT-Shop: six foot!, ok I'll put the short one in
03:51 PM * JT-Shop goes to make some chicken crack
03:52 PM Plaid: I'm the "I'll figure out how to cobble this into a giant mass of wires and cross my fingers" kind of guy
04:03 PM JT-Shop: Plaid, are you going to print DIN rail mounts for the cards?
04:06 PM roycroft: i think i got some of those from you, jt-shop, for my 7i96
04:06 PM Plaid: JT-Shop  I haven't planned that far tbqh
04:07 PM roycroft: yes, i did - 1 7i96 and 3 din mounts for it
04:08 PM Plaid: I'm buying an existing machine, and I haven't looked inside of the cabinet yet.
04:09 PM Plaid: But I found detailed wiring docs, so I know what's in the cabinet, just not what it looks like.
04:10 PM JT-Shop: roycroft, where's a good place to get 9" pressure sensitive adhesive sanding disks?
04:11 PM roycroft: might i kindly suggest you abandon your "cobble this into a giant mass of wires" approach
04:11 PM Plaid: ...Great, now you have me pondering my enclosures... I don't even have a full wiring plan yet!
04:11 PM roycroft: https://2sand.com/2sand-psa-9-inch-sanding-discs-aluminum-oxide-cloth-backed-10-pack/
04:11 PM roycroft: you'll be a lot better off in the long run planning your wiring carefully, fully diagramming it, and labeling the wires as you go
04:12 PM JT-Shop: thanks
04:12 PM roycroft: i have not purchased many psa discs from them - just a couple 12"
04:13 PM JT-Shop: I need a bigger disk sander, 9" is so limiting like 4.5" of sanding area
04:13 PM roycroft: but i purchase most of my spindle sander sleeves from them
04:13 PM roycroft: 9" sounds like something stuck on the end of a wood lathe
04:14 PM JT-Shop: on the side of a belt sander
04:14 PM roycroft: 12" is a good size, but if i had the money and the space i'd get a really big one
04:14 PM roycroft: like 20"
04:14 PM JT-Shop: I got rid of my brewery so I have more room now :)
04:14 PM roycroft: a 20" 3 phase stationary disc sander would be awesome
04:16 PM XXCoder: fun https://youtu.be/H4GQIoZ5Dkg
04:16 PM roycroft: https://roycroft.us/Sander-Cabinet/Sander-Cabinet-1.jpeg
04:16 PM roycroft: that's what i have now
04:16 PM roycroft: the disc sander is a shop fox
04:16 PM roycroft: and i'm very happy with it
04:16 PM XXCoder: thats how you know youre looking at awesome wood shop. everything is in amazing cabinets
04:18 PM JT-Shop: I wondered about shop fox, I have some clamps and they are terrible lol
04:18 PM roycroft: most of their stuff is pretty good
04:18 PM roycroft: it's essentially grizzly, but painted white instead of green
04:19 PM roycroft: although i'd say the fit and finish is a wee bit above grizzly, on average
04:20 PM roycroft: anyway, i've been buying some stuff from 2sand.com for several years, and i've always found it a good value, and they ship promptly
04:22 PM roycroft: https://pro.woodworker.com/9-psa-aluminum-oxide-80-grit-cloth-sander-disc-mssu-129-065.asp
04:23 PM roycroft: that site is usually a little more expensive, than 2sand.com, but they have higher quality abrasives, and a better selection
04:23 PM JT-Shop: can't view that page
04:23 PM roycroft: oh, sorry
04:23 PM roycroft: you need a commercial account to view it
04:23 PM JT-Shop: yup
04:23 PM roycroft: and you don't want to go to the retail site, because it has retail prices
04:24 PM roycroft: https://woodworker.com/9-psa-aluminum-oxide-80-grit-cloth-sander-disc-mssu-129-065.asp
04:24 PM roycroft: but there you go
04:24 PM roycroft: it's easy to get a commercial account there
04:24 PM roycroft: so if you find anything interesting you should do that
04:25 PM JT-Shop: ok
04:25 PM roycroft: there are two things i don't believe in:
04:25 PM roycroft: 1. paying bank fees/interest
04:25 PM roycroft: 2. paying retail prices
04:26 PM Plaid: I'm going to use the bulk of the existing wiring, so it shouldn't be too bad.  since I have a full set of diagrams for it, so I just basically need a breakout board to bridge the existing connectors into the mesa card
04:26 PM roycroft: with rare and carefully considered exceptions
04:26 PM JT-Shop: https://www.grizzly.com/products/grizzly-15-disc-sander-with-stand/g0719
04:26 PM roycroft: woodworker's supply tends to be back ordered a fair amount
04:27 PM roycroft: i've looked at that sander
04:27 PM roycroft: it seems pretty nice
04:27 PM roycroft: i think if i got a big stationary one like that i'd go for an old oliver or something though
04:28 PM JT-Shop: https://www.ebay.com/itm/184472289219
04:28 PM roycroft: https://www.ebay.com/itm/184472289219
04:28 PM roycroft: yeah, like that :)
04:28 PM JT-Shop: lol
04:28 PM JT-Shop: Free local pickup from Pomona, California,
04:28 PM roycroft: you would pay a couple hundred dollars freight on it
04:28 PM roycroft: but once you refurbish it it would be a great sander
04:29 PM JT-Shop: I a machine builder I should just build one with a MIC6 plate for the sander
04:30 PM JT-Shop: I wonder why they are all direct drive... seems to me a reduction would help from burning the wood?
04:32 PM JT-Shop: 1725 rpm is 9032 SFM at the edge of a 20" sander
04:32 PM roycroft: yeah, on a big sander that's really fast
04:32 PM roycroft: but if you get a 3 phase model you can always put it on a vfd and slow it down
04:33 PM JT-Shop: hmm I have some vfd's and 3 phase motors...
04:33 PM roycroft: it's supposed to be really aggressive
04:33 PM roycroft: and is usually best fitted with fairly coarse abrasive, which reduces burning
04:34 PM roycroft: i tried 80 grit and 120 grit on mine, and finally settled on 120 grit
04:34 PM roycroft: i find that's still aggressive enough to hog a lot of wood, but if i use a really light touch i can do the final sanding without burning
04:34 PM roycroft: it did take some getting used to, but it works well for me now
04:35 PM roycroft: i did try a 180 grit disc and pulled it after about 2 minutes - it's almost impossible to sand without burning with that fine a disc
04:35 PM roycroft: and you actually need two of those disc sanders
04:35 PM roycroft: one for the wood shop and one for the machine shop
04:36 PM roycroft: my 3hp belt grinder does a good job with metals, though, so i don't miss the machine shop disc sander
04:37 PM roycroft: https://www.ebay.com/itm/155094828887
04:38 PM roycroft: that wouln't be that long of a road trip for you
04:41 PM JT-Shop: 10 hours each way...
04:41 PM roycroft: yeah, a day each direction
04:41 PM roycroft: for a nice piece of kit
04:42 PM Plaid: I feel less silly now for driving 3 hours to pick up a router now :P
04:42 PM roycroft: and it's cheap
04:42 PM roycroft: barley any more than the grizzly
04:42 PM roycroft: i bet you could offer $1299 and get it
04:42 PM JT-Shop: grizzly is 4 hours away
04:43 PM roycroft: the main question is: does the seller have a fork lift?
04:43 PM JT-Shop: https://www.grizzly.com/products/grizzly-15-disc-sander-with-stand/g0719
04:44 PM JT-Shop: hard to make a one off for that price
04:45 PM XXCoder: probably due to making parts or whole at countries with less labor cost
04:45 PM roycroft: https://www.ebay.com/itm/143378417931
04:45 PM JT-Shop: and for $180 for freight not worth going to springfield unless we want to go to a good restaurant
04:46 PM roycroft: there's a nice one that's even closer to you
04:46 PM roycroft: and it has a belt sander as well
04:46 PM JT-Shop: one off's cost a lot more because you have to engineer each part
04:47 PM JT-Shop: that's a subburb of chicago so 7 hours each way
04:47 PM roycroft: i wouldn't call dekalb a suburb of chicago
04:48 PM roycroft: but yes, it's in northern illinois
04:48 PM roycroft: when i lived in chicago we thought of dekalb more like "out towards iowa"
04:48 PM JT-Shop: well there is a tiny bit of green between dekalb and chicago
04:49 PM JT-Shop: I bet it's not the same now
04:49 PM roycroft: even though ti's closer to chicago than iowa
04:49 PM roycroft: there were many many miles of corn fields between chicago and dekalb when i lived there
04:49 PM roycroft: but that was over 40 years ago
04:50 PM JT-Shop: when I went to Alaska a few years ago it had changed a lot and built up so the place I lived was elbow to elbow all the way to anchorage
04:51 PM JT-Shop: and we lived pretty far out from anchorage
04:51 PM roycroft: the last time i spent any time in chicago was in 1996
04:52 PM JT-Shop: the first time I was in alaska was 1953
04:52 PM roycroft: and the last time i was there, period, was in 2000, but that time i was only there for a layover at midway airport
04:52 PM JT-Shop: wasn't a state yet
04:52 PM XXCoder: reminds me of that story my dad told me
04:53 PM XXCoder: he visited alaska, he was really enjoying walking around city, and he was getting tired and wondered why as it was light out
04:53 PM XXCoder: it was 1 am
04:53 PM JT-Shop: summer time yep
04:55 PM JT-Shop: if you were near an airport vfr flights would be almost 24 hours a day
04:55 PM JT-Shop: vfr visual flight rules
05:02 PM XXCoder: yay 5 myfordboy videos to watch
05:27 PM roguish[m]: JT-Shop: we have a VFR lighthouse right here. atop Mt Diablo. built 1928, just under 4000 ft. https://www.mdia.org/summit-museum
05:39 PM JT-Cave: cool
05:42 PM JT-Cave: https://forum.linuxcnc.org/27-driver-boards/47400-selling-my-new-unused-mesa-electronics-cnc-cards#257364
05:44 PM * JT-Cave calls it a day
07:29 PM CAKESLOB: Hey guys, if someone could help me out with this gcode thing im doing , that would be very appreciated
07:30 PM CAKESLOB: Im trying to do something like this on the fanuc
07:30 PM XXCoder: its usually better to ask direct questions than ask to ask a question :)
07:31 PM CAKESLOB: Yeah, sorry, im trying to type it and it takes me a long time to type because im a blowhard
07:32 PM CAKESLOB: spindle warmup has this line at the end to set the date to a variable [#_DATE] = #505
07:32 PM CAKESLOB: this one works
07:33 PM CAKESLOB: in my main, Im trying to do a check to see if its run
07:34 PM CAKESLOB: IF [[#_DATE] NE #505] M98 P702
07:35 PM CAKESLOB: this line is causing me issues. I tried to format it a few different ways but Im not having any luck
07:37 PM XXCoder: hopefully someone will know :)
07:43 PM CAKESLOB: me too,
07:53 PM Tom_L: problem with the 'if' logic?
07:56 PM Tom_L: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Example_G-Code_Programs
07:56 PM Tom_L: some samples using logic in gcode
08:13 PM CAKESLOB: Yeah, Ive been going over a lot of examples, but I dont see any examples comparing 2 variables
08:13 PM CAKESLOB: I had a THEN in there, but the fanuc did not like it either.
08:34 PM CaptHindsight[m]: roycroft: there are still lots of cornfields between Dekalb and Chicago, but it more like Europe around here now, every few minutes at highways speeds there is a community
09:04 PM roycroft: i remember dekalb as the home of northern illinois university
09:04 PM roycroft: i.e. the official state party school
09:14 PM Tom_L: CAKESLOB, on fanuc robotic controls: https://www.robot-forum.com/robotforum/thread/32512-types-of-if-instructions/
09:36 PM CaptHindsight[m]: roycroft: it's still there, it rises from the cornfileds
09:37 PM CaptHindsight[m]: roycroft: developers make a killing turning corn fields into communities that last about 20 years
09:38 PM CaptHindsight[m]: after about 20 years the infrastructure starts to wear out and the developers are long gone
09:38 PM CaptHindsight[m]: so you need new sewers and roads
10:57 PM CAKESLOB: Thanks Tom, but thats for robot control. Im trying to do macro b on a fanuc i18
10:58 PM CAKESLOB: the robot controller interface is easier to program
11:27 PM Plaid: Is a max jitter of 23000/24000   acceptable if I'm going to be using a mesa card?
11:28 PM XXCoder: seems fine
11:28 PM XXCoder: try to abuse your pc more though
11:28 PM XXCoder: load a full screen HD of fireplace at youtube
11:29 PM Plaid: Heh.  Okay.
11:29 PM XXCoder: load 3 or 4 of glxgears
11:29 PM XXCoder: latency should be at worse conditions, not idling
11:30 PM XXCoder: honestly it matters less for MESA setups, but good latency is always good
11:40 PM Plaid: 5x glxgears, while watching a youtube video with audio, over wifi
11:40 PM Plaid: 24000/ 26000
11:42 PM XXCoder: fireplace?
11:43 PM XXCoder: because it basicallu changes nearly all pixels constantly
11:43 PM Plaid: Some guy falling over.  Quite funny.
11:43 PM Plaid: Oh, you were serious :P
11:44 PM XXCoder: yeah
11:44 PM XXCoder: google hd fireplace and you'll have million choices
11:45 PM Plaid: Video plays terribly. Jitter is 23k/27k
11:46 PM XXCoder: not bad at all
11:46 PM Plaid: It does the real-timey thing, the browser stops, latency-test just keeps chugging
11:47 PM Plaid: I'm getting like 2 FPS
11:47 PM XXCoder: ow lol
11:47 PM Plaid: But... it doesn't matter, linuxcnc will drive the servos :P
11:47 PM XXCoder: yeah if it stays like that range of jitter its doing fine
11:48 PM XXCoder: if it blows to 200k then its bad even for MESA
11:48 PM Plaid: It's an older core2duo, I disabled everything in the bios per the setup manual, and the jitter stablilized.
11:49 PM Plaid: I also had to switch to wheezy  (which was one of the suggestions)
11:51 PM Plaid: On buster I my timing wasn't near as stable.