#linuxcnc Logs
Nov 09 2023
#linuxcnc Calendar
12:52 AM Deejay: moin
01:04 AM memleak: aamu
02:24 AM memleak: I'm off to bed, night all.
02:55 AM -!- #linuxcnc mode set to +v by ChanServ
04:12 AM Tom_L: morning
04:53 AM JT-Cave: morning
05:06 AM lcnc-relay: <TurBoss> morning
06:33 AM JT-Cave: rooster just crowed
07:54 AM JT-Cave: Tom_L, scale calculator added
10:11 AM LUNADA_DESKTOP: oooh a scale calculator? that's cool
10:35 AM roycroft: hello, folks
10:36 AM roycroft: based on recent convesations here regarding carbide tooling i decided to give it another go yesterday
10:36 AM roycroft: i was doing some turning on the lathe, but i have cheap carbide tooling, and two of the carbide tips (brazed on, not inserts) quickly chipped
10:37 AM roycroft: i'm thinking of trying higher quality tooling with proper inserts, and i wonder of anyone has used or otherwise has an opinion on these:
10:37 AM CaptHindsight: did they catch a sharp edge?
10:38 AM roycroft: https://www.amazon.com/dp/B0861VT443/
10:38 AM roycroft: no, and i had actually done the initial pass, removing the mill scale, with a hss tool
10:39 AM CaptHindsight: https://accusizetools.com/
10:39 AM CaptHindsight: are those the tools that you used or are considering buying?
10:40 AM roycroft: they are the ones i'm condering buying
10:40 AM CaptHindsight: derp, sorry, yeah
10:40 AM roycroft: the ones i used are cheap chinese-made ones with brazed on tips
10:40 AM CaptHindsight: <-- on first cup of coffee
10:40 AM * roycroft is just now enjoying his cappuccino
10:41 AM CaptHindsight: I might be wrong but the tools at their website look very much like Shars and similar
10:42 AM roycroft: i've had very mixed experiences with shars
10:42 AM roycroft: mostly negative
10:43 AM roycroft: shars are a cut above no-name, but they're still fairly typical chinese goods
10:44 AM CaptHindsight: honestly if you really want to machine things well buy good cutting tools, whenever I try to cut corners it ends up being a problem unless I buy great brand inserts and similar from some old machinist with boxes of NOS for 10 cents on the dollar
10:45 AM CaptHindsight: accusizetools looks like branded Chinese to me
10:45 AM roycroft: and i had that issue with shars where they sent me a square that had a clear manufacturing defect, i complained, and they filed an insurance claim with the usps saying it was shipping damage
10:45 AM roycroft: my goal is to get good tooling
10:45 AM CaptHindsight: yeah, never give up any $$
10:46 AM CaptHindsight: are there any local tool makers near you?
10:46 AM roycroft: the real issue with that is that the usps contacted me about it and wanted a statement from me
10:46 AM CaptHindsight: there are still several in the Chicago area
10:46 AM roycroft: i told them it was a manufacturing defect and that i did not understand why someone would try to claim shipping damage, and i provided them with photos of the defect
10:46 AM CaptHindsight: but you also have problems with getting your boxes
10:47 AM roycroft: but shars' scam attempt affected a customer
10:47 AM CaptHindsight: they tend to float around the Northwest until they find your address
10:47 AM roycroft: i don't have any tooling makers here
10:47 AM CaptHindsight: ah
10:47 AM roycroft: not that i know of
10:47 AM roycroft: i'm quite open to suggestions on quality tooling
10:47 AM roycroft: my tool holders can handle 1/2" tooling max
10:48 AM roycroft: this is a 12x36 lathe
10:48 AM CaptHindsight: sure
10:48 AM CaptHindsight: I have similar for my smaller lathes
10:48 AM CaptHindsight: or had
10:49 AM CaptHindsight: I have a Shars kit similar to the one you posted and it's OK but I use better inserts
10:49 AM roycroft: https://www.shars.com/5-16-c-style-c2-grade-carbide-tipped-tool-bits
10:49 AM roycroft: that is similar to what i was using yesterday
10:49 AM CaptHindsight: heh, I have a box of those that I never use for cutting
10:49 AM roycroft: i had a box of those laying around, probably something i bought years ago, when i had the 6x14 lathe
10:50 AM CaptHindsight: :) same, they are junk
10:50 AM roycroft: indeed
10:50 AM roycroft: anyway
10:50 AM roycroft: the inserts for the accusize are pretty standard, no?
10:50 AM CaptHindsight: yes
10:50 AM roycroft: so if i got that set, i could use different brand inserts
10:51 AM roycroft: the main problem with that set, then, might be the boring bar
10:51 AM CaptHindsight: yes, it's what I do
10:51 AM roycroft: as i'd probably want a solid carbide boring bar
10:52 AM CaptHindsight: check them against good insert makers like Sandvik
10:52 AM roycroft: maybe i should buy an individual tool and test it
10:52 AM roycroft: vs the set
10:52 AM CaptHindsight: https://www.sandvik.coromant.com/en-us/tools/inserts-grades
10:53 AM CaptHindsight: the inserts that came with the Shars set chipped pretty quickly
10:53 AM CaptHindsight: you won't regret getting better tools and good inserts if you can afford them
10:54 AM CaptHindsight: the holders are fine, but it's typical China, you have to get a good set, not what should have been rejected but shipped off to market anyway
10:55 AM roycroft: i had this kind of conversation at woodcraft the other day (again)
10:55 AM roycroft: i was buying some splinter guards for my festool jigsaw, when a customer started opining that festool are overpriced and it's foolish to spend money on their stuff
10:56 AM roycroft: an employee was agreeing with them (semi-cautiously)
10:56 AM roycroft: i pointed out that their abrasives cost about 50% more than the crap diablo stuff you can get at home depot, but last 2 to 3 times as long, and are actually cheaper to use than the lower-quality stuff
10:57 AM roycroft: of course i got a little push-back on that but not too much
10:57 AM roycroft: and the 'conversation' quickly moved to how much more one pays for the machines
10:58 AM roycroft: which is true - a typical festool sander is in the $400 range, while a typical other brand is more like $120
10:58 AM roycroft: but the festool comes with a bunch of accessories that help it perform better
10:58 AM roycroft: and when i go out to my shop, i can open the abrasives drawers and see thousands of dollars worth of abrasives
10:59 AM roycroft: as the cost of consumables quickly outweighs the cost of the tool
10:59 AM roycroft: i should imagine it's the same with insert tooling
10:59 AM CaptHindsight: I have paid $100 for a box of cat40 tool holders (10pcs), but maybe it's because I'm in the midwest and there are still lots of tools stored away
10:59 AM roycroft: if the high quality insert lasts twice as long as the cheap one and costs less than twice as much it's a bargain
11:00 AM roycroft: and even if it costs more in the end, if it produces a better finish or performs better at higher speeds, it's still a net savings
11:00 AM CaptHindsight: same for inserts, Sandvik carbides for $1-2ea , 100-200 in a box from an old machinist
11:00 AM roycroft: nice
11:01 AM roycroft: so i have no problem getting good tooling, but i don't know what is good and what is not
11:01 AM roycroft: which is why i'm asking about it here
11:01 AM CaptHindsight: I buy a few things from Shars but I go pick them up to perform QC.
11:01 AM roycroft: yeah, i know they're just outside chicago
11:02 AM CaptHindsight: yeah, resist the urge to save a few $$ and just buy good tools and cutters
11:02 AM CaptHindsight: now Chinese TIG's on the other hand
11:04 AM CaptHindsight: but I can repair or modify them so $500 for a 250A TIG is a deal for me, but I wouldn't do the same with a machine or tool holders
11:06 AM CaptHindsight: https://www.shars.com/products/cutting/tool-bits?tool_bit_category=Tool+Bit+Set junk
11:07 AM CaptHindsight: they aren't even sharp, they braze a dull carbide on the ends
11:08 AM CaptHindsight: you have to sharpen them before you turn the butter or cheese
11:09 AM roycroft: if i invest in carbide insert tooling i want to never touch the inserts other than installing or rotating them
11:10 AM roycroft: it defeats the purpose of using them if one has to hone them
11:10 AM CaptHindsight: I used an Enco mill last week with R8 collets, it has a drawbar like the Bridgeports but to lock the spindle to tighten or loosen the drawbar it uses a setscrew in the spindle
11:11 AM roycroft: i'll not get any more tools with chunks of grey mystery metal brazed on a painted red piece of pot metal
11:11 AM CaptHindsight: do the other BP knockoffs use a setscrew or a locking lever like the BP's>
11:11 AM roycroft: the ones i was attempting to use yesterday i've had for probably 20 years or more
11:12 AM CaptHindsight: the Chinese have figured out how to make soft carbide :)
11:12 AM roycroft: my mill/drill is r8, but it's very small and not at all bridgeport-like
11:12 AM roycroft: but it does not have that set screw mechanism
11:12 AM CaptHindsight: how do you lock the spindle?
11:12 AM roycroft: there's a splined shaft at the top of the spindle
11:13 AM roycroft: i use a 22mm box wrench on that shaft to hold the spindle
11:13 AM CaptHindsight: ah ok, thanks
11:19 AM CaptHindsight: https://www.youtube.com/watch?v=fhD2W1rwlyU Enco
11:19 AM CaptHindsight: Collet Alignment Screw
11:20 AM roycroft: my mill/drill spindle has an alignment pin, similar to that alighment screw discussed in the video
11:20 AM roycroft: but it does not ever need any adjustment
11:21 AM roycroft: it's not for spindle adjustment
11:30 AM JT-Cave: yea my battery and lens has been packed for shipping
11:37 AM LUNADA_DESKTOP: ok i must be missing something here. is there a current tool number output and requested tool number output when not using the manual toolchange function? i'm using carousel
11:38 AM LUNADA_DESKTOP: basically i'm trying to skip the toolchange when the requested tool is in the spindle already
11:38 AM LUNADA_DESKTOP: right now, it removes the tool and puts it back in
11:39 AM JT-Cave: using classicladder?
11:39 AM LUNADA_DESKTOP: no
11:39 AM LUNADA_DESKTOP: hal
11:40 AM LUNADA_DESKTOP: i was trying to interrupt the toolchanged loop in hal
11:42 AM rmu: LUNADA_DESKTOP: do you use some kind of remap of M6?
11:42 AM LUNADA_DESKTOP: i do
11:42 AM rmu: python?
11:42 AM rmu: that would be the place to check IMO
11:42 AM LUNADA_DESKTOP: i believe so, it was an example
11:43 AM * JT-Cave does his tool change with classicladder on the CHNC
11:44 AM LUNADA_DESKTOP: JT-Cavei have in previous machines, but this one needs to move the z so i did it this way
11:45 AM rmu: my toolchangers remap to .ngc, there all moves etc.. are done, communication with tool changed is done via m64 & co that goes into classicladder
11:45 AM rmu: classicladder is used for interlocks
11:45 AM JT-Cave: you can move z with a g code setting
11:46 AM rmu: one of my machines has a rack type tool magazine
11:46 AM LUNADA_DESKTOP: not somethnig i've ever done before so i was just using examples i found
11:47 AM rmu: the other one is a brother drill/tap, so type of carousel, but limits have to be changed / spindle oriented in order to go to tool changing position
11:47 AM LUNADA_DESKTOP: nice
11:48 AM JT-Cave: http://linuxcnc.org/docs/stable/html/config/ini-config.html#sub:ini:sec:emcio
11:49 AM JT-Cave: well it's an ini setting TOOL_CHANGE_POSITION
11:49 AM LUNADA_DESKTOP: this one didnt need a spindle orient
11:49 AM JT-Cave: several tool change options in EMCIO
11:49 AM * roycroft would still like suggestions on good tool holders for the lathe
11:50 AM LUNADA_DESKTOP: my carousel doesnt go up or down, so i need to move the z to load the tool. it isn't just a matter of moving the machine to a toolchange position or raising the quill
11:51 AM LUNADA_DESKTOP: that's all working great, the only issue i have now is it still makes a toolchange when the correct tool is in the spindle
11:52 AM LUNADA_DESKTOP: so if T2 is in the spindle, and the program has T2M6 in it, it takes T2 out and puts it back in
11:53 AM LUNADA_DESKTOP: i was hoping i could just trigger iocontrol.0.tool-changed before it does all that
12:08 PM -!- #linuxcnc mode set to +v by ChanServ
12:08 PM JT-Shop: roycroft, wood or metal?
12:08 PM roycroft: metal
12:08 PM roycroft: after recent discussions here i'm interested in having another go with carbide tooling in my lathe
12:08 PM JT-Shop: I mostly have Kennametal
12:08 PM roycroft: but the cheap chinese brazed-on tools i tried yesterday chipped quickly
12:08 PM LUNADA_DESKTOP: you need a fairly rigid machine for carbide
12:08 PM LUNADA_DESKTOP: not sure what lathe you have
12:09 PM JT-Shop: each turning tool I purchased solved a problem in turning for example a tiny round insert to cut a shape that only it could reach
12:10 PM LUNADA_DESKTOP: https://www.ebay.com/itm/325805198971?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D256748%26meid%3Dcfc973d9dbca44318e78f1784234f2a5%26pid%3D101195%26rk%3D4%26rkt%3D12%26sd%3D404559810265%26itm%3D325805198971%26pmt%3D1%26noa%3D0%26pg%3D4429486%26algv%3DSimplAMLv11WebTrimmedV3MskuWithLambda85KnnRecallV1V2V4ItemNrt
12:10 PM LUNADA_DESKTOP: InQueryAndCassiniVisualRankerAndBertRecallWithVMEV3CPCAuto%26brand%3DKennametal&_trksid=p4429486.c101195.m1851&amdata=cksum%3A325805198971cfc973d9dbca44318e78f1784234f2a5%7Cenc%3AAQAIAAABYObhgc4Nk8%252BdtAwOww4FKLaj%252FQ5qqgDlQCuqZA43WcPFUWDERCUugbbOk7XQv0JXlBfqCg2xKF3WcPghxGMFw2oSlXvfExEaMYr7I7LmrHcP6czY1wIMt0ORyKiCWt95xldincyyBx3g%252BNDW%252B%2
12:10 PM LUNADA_DESKTOP: 52FhWUgTaBhK6xAm%252BJIbCOMehu%252Bdw1N7FPcZ2mlxQqOuJDUtCksc0y2Pn5Jqw1rbh4K%252BhVSBHgg1ux9CewPaMAoregaudqCBD2PhxthEKE6blqQwrdFkOOc2awgNwc9euGTEY4EUdTugA%252FOTrFglcVROihoBdHVD1dLL53SrzqaFAnyXKHb1DYDi7ztAAtt7zhhSIkiNxmfijdb35v4YRUmilMg5ZLMImtfzYAJv8g3t7Ob0SF5KEQeIz756Zo2UqnvJ4qru6VNORsMan83fGL2NkOUqpYi7yFGVvnvVTld3hwW%252BOSeBMn7y%252BKcwEC%252B4vQ
12:10 PM LUNADA_DESKTOP: fTFiVI%253D%7Campid%3APL_CLK%7Cclp%3A4429486
12:11 PM LUNADA_DESKTOP: probably a bit big for your lathe
12:11 PM JT-Shop: you can delete everything past the ?
12:11 PM roycroft: yes, please
12:12 PM LUNADA_DESKTOP: they make different shank sizes
12:12 PM roycroft: and yes, that is way too big for my machine, but it does show the type of tool holder
12:12 PM LUNADA_DESKTOP: but yea, JT-Cave is right, i have a bunch of different holders for different scenarios
12:13 PM roycroft: 1/2" is the largest too holder i can handle
12:13 PM LUNADA_DESKTOP: i just milled one down for my old hardinge
12:13 PM LUNADA_DESKTOP: worked fine
12:13 PM JT-Shop: I've milled down 3/4" holders to fit my CHNC
12:13 PM LUNADA_DESKTOP: lol
12:13 PM LUNADA_DESKTOP: jinx
12:14 PM LUNADA_DESKTOP: that first holder you posted is very useful for grooving and threading. i use the hell out of that as well
12:15 PM LUNADA_DESKTOP: they sell boring bars that use the same inserts for internal threading and grooving
12:17 PM roycroft: i probably want a facing tool first
12:18 PM roycroft: maybe one that can do facing and chamfering while mounted in the same position, but maybe just facing would be fine
12:18 PM roycroft: i have zero experience with carbide insert tooling on a lathe
12:19 PM JT-Shop: I have two facing tools, one for steel and one for aluminum
12:19 PM * JT-Shop hears a nap calling his name
12:20 PM roycroft: i'll try to find some decent youtube videos about carbide insert tooling so i don't waste this channel's time with remedial questions about it
12:30 PM CaptHindsight: compare the shape, especially the cutting edge and after on a good insert vs the Chinese brazed cheap cutting tools
12:31 PM CaptHindsight: you could try to sharpen and shape them yourself
12:41 PM roycroft: which is something i would want to avoid - that negates a big part of the purpose of using carbide tooling
12:42 PM roycroft: i like the idea of having inserts with ideal geometry ready to just drop in and use, without my having to spend time at the grinder
12:42 PM roycroft: i also don't have a diamond wheel for my tooling grinder, so at the moment any carbide shaping has to be done with hand sharpeners
12:44 PM Tom_L: roycroft, i would suggest kennametal or iscar
12:45 PM Tom_L: and i would also suggest getting a right, left and center insert holder
12:45 PM roycroft: thanks
12:45 PM Tom_L: and use inserts
12:45 PM roycroft: i'll probably start with a left, to see how i like it
12:46 PM roycroft: and yay
12:46 PM roycroft: mortgage rates just went down again
12:46 PM Tom_L: JT-Cave, JT-Shop that issue i was talking about is still present
12:47 PM Tom_L: selecting the correct board with the wrong ip address produces this: http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/mesact/mesact4.png
12:48 PM roycroft: the problem with perusing manufacture catalogs is that they assume i already understand all the important parts about carbide insert tooling
12:48 PM roycroft: but teh youtube has some intro videos that might help
12:48 PM Tom_L: the message would be more informative if it said no board at that ip or something of that nature
12:48 PM roycroft: i might even try to sit through an entire "this old tony" video, even though i find him annoying
12:48 PM Tom_L: roycroft, you want diamond or triangle inserts
12:49 PM Tom_L: you could do square, that's up to you
12:49 PM roycroft: square inserts go on the helical heads on my jointer and thicknesser
12:50 PM roycroft: i have a turning tool for my wood lathe that takes round carbide inserts, but i've never used it
12:50 PM roycroft: and even if i had, it would have been on wood, and i don't think that translates to metal very well, so it would be an irrelevant experience
12:50 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/SANDVIK_TURN_H.pdf
12:51 PM Tom_L: maybe that's the wrong one for you
12:52 PM unterhausen: nobody is interested in irq affinity I guess
12:53 PM Tom_L: not yet. i don't understand that much about kernel settings yet
12:53 PM unterhausen: I'll continue to hack away at it, I think I'm having power supply issues rn though
12:54 PM unterhausen: It occurs to me I should do testing for latency
12:57 PM Tom_L: roycroft, do you have a tool post holder?
12:57 PM Tom_L: if so find the holders that are the right height for it to center
12:58 PM unterhausen: there are oversize tool holders now, that's what I use. Some Chinese brands of carbide are pretty good. They should be since they make most of the chips in the world
01:02 PM Tom_L: JT-Shop, scale calc looks neat
01:03 PM Tom_L: fairly accurate too :)
01:06 PM Tom_L: i'll build here after bit
01:09 PM JT-Shop: thanks
01:09 PM JT-Shop: you mean it's not perfectly accurate?
01:10 PM roycroft: yes, it's b size
01:10 PM Tom_L: i guessed at my numbers and just happened to be right so yes it's accurate
01:10 PM roycroft: and can take 1/2" tooling
01:10 PM roycroft: which is why i'm looking at 1/2" tool holders
01:10 PM Tom_L: JT-Shop, you see my comment about the message?
01:10 PM mozmck: unterhausen: what about irq affinity?
01:11 PM JT-Woodshop: Tom_L, no\
01:11 PM unterhausen: I'm trying to move all the lcnc related irq to the lcnc cpu and everything else off of them
01:12 PM mozmck: I do that and it helps a lot.
01:12 PM Tom_L: JT-Woodshop, selecting the correct board with the wrong ip address produces this: http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/mesact/mesact4.png
01:13 PM Tom_L: on 'Verify Board'
01:14 PM * Tom_L goes for an overdue nap
01:19 PM mozmck: unterhausen: IIRC you have to install irqbalance, and then I set up a script in /etc/irqbalance to set irq for the network interface that talks to the mesa board to be handled on the realtime kernel
01:22 PM mozmck: Here is the script I use. This one parses /etc/network/interfaces to find the NIC that is set to the right IP to talk to the mesa card. www.mcknight-instruments.com/linuxcnc/ccc_irqpolicy.sh
01:22 PM unterhausen: I thought of that, but the kernel automatically balances, and I'm going to try turning that off first
01:23 PM unterhausen: mozmck, can I post your script on the forum?
01:23 PM mozmck: Using isolcpus automatically keeps irqs from being handled by the isolated CPUs
01:23 PM mozmck: Sure!
01:24 PM unterhausen: isolcpus doesn't do that, unfortunately
01:24 PM unterhausen: not on my systems anyway
01:25 PM mozmck: It has been a while since I did that and I may not be remembering everything correctly, this combined with isolcpus does make a large difference.
01:25 PM mozmck: You do have to make sure to isolate all CPUs that share a cache or something like that.
01:25 PM unterhausen: so we've gone from reading source to reading cpu data sheets :)
01:25 PM CloudEvil: That depends how much you care - cache stalls can be pretty damn small.
01:26 PM mozmck: Nah, I have a script for setting up isolcpus too...
01:26 PM unterhausen: why do you need a script for isolcpus?
01:27 PM mozmck: I do this to set up the irqbalance script: sed -i "s|.*IRQBALANCE_ARGS=.*|IRQBALANCE_ARGS=\"--policyscript=/etc/irqbalance.d/ccc_irqpolicy.sh\"|" /etc/default/irqbalance
01:27 PM mozmck: I have an installer for custom hardware that has to work on various PCs
01:28 PM mozmck: ISOLCPUS=`lscpu -p | tac | awk -F, '{ if(FNR==1) {lastcore=$2; cpu=$1; cpu0=$1} else if ($2==lastcore && cpu0>1) {cpu = $1 "," cpu} } END {if(cpu0>0) {print cpu} }'`
01:28 PM mozmck: sed -i "/^GRUB_CMDLINE_LINUX_DEFAULT=/ s/\"$/ isolcpus=$ISOLCPUS\"/" /etc/default/grub
01:29 PM mozmck: I think jepler came up with the isolcpus script years ago
01:36 PM Unterhaus_: okay, I guess I'm going to have to figure out how the main lcnc task gets called and make sure the interrupt is on an isolated cpu
01:36 PM Unterhaus_: if any
01:38 PM JT-Cave: Tom_L, your still using an old version of mesact... current build date is 11/09
01:38 PM JT-Cave: is there a board at 192.168.1.121?
01:38 PM JT-Cave: I get No board found at 192.168.1.121
01:39 PM mozmck: Unterhaus_: The lcnc realtime stuff is all run on the highest number CPU. Did you see the script I sent to set isolcpus?
01:40 PM Unterhaus_: that's the tasks, I'm focusing on interrupts, which may be different
01:41 PM Unterhaus_: I think I have to dig into source, been a while
01:41 PM mozmck: my irq affinity script bans the relevant interrupts from being moved by irqbalance and then moves them to the last CPU. The only irq that has to be there is the one for the NIC
01:43 PM mozmck: The kernel and irqbalance are the things that assign and move interrupts. isolcpus does keep most interrupts off the isolated CPU (with one or two exceptions that can't be changed)
01:46 PM JT-Cave: I wish I understood what mozmck was saying...
01:48 PM mozmck: :-) irqs are interrupts from hardware, and the kernel has a method of running the interrupt handlers on all the CPU cores to balance the load across them.
01:51 PM JT-Shop: so do you run the ccc_irqpolicy.sh somehow at start up?
01:53 PM mozmck: When CPU cores are isolated with isolcpus, the kernel will not run any process and only certain interrupt handlers that can't be moved on those cores (IIRC!)
01:55 PM Unterhaus_: I'll have to look harder at my which interrupts are on the lcnc cpus
01:55 PM mozmck: JT-Shop: yes - you have to add IRQBALANCE_ARGS="--policyscript=/etc/irqbalance.d/ccc_irqpolicy.sh" to /etc/default/irqbalance and it will run at startup
01:58 PM JT-Woodshop: cool
01:58 PM mozmck: You might have to make sure irqbalance is installed as well
01:59 PM Unterhaus_: none of this seems to come up when people talk about latency
02:02 PM mozmck: https://www.linkedin.com/pulse/server-performance-tuning-interrupt-process-affinity-cpu-kumar
02:02 PM mozmck: You'll find more on it looking at server tuning for low latency networking.
02:03 PM roycroft: ok, i mostly have a better sense of carbide insert tooling now, except for one thing that i haven't seen discussed
02:03 PM roycroft: and again, i'm looking at a facing tool initially
02:03 PM roycroft: i see them with a straight nose, and the nose at various angles, such as 65 degrees or 75 degrees
02:03 PM roycroft: what is the advantage to one vs the others?
02:13 PM mozmck: Unterhaus_: https://rigtorp.se/low-latency-guide/
02:16 PM mozmck: He mentions in that article that irqbalance by default isolates cores specified in isolcpus. If you are not running irqbalance all the irqs will be on the first core.
02:16 PM mozmck: https://access.redhat.com/solutions/2144921
02:50 PM Tom_L: JT-Cave, http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/mesact/mesact4.png
02:50 PM JT-Shop: that's an old build
02:51 PM Tom_L: JT-Cave, same message with the new version. a board is at 10.10.10.10 but not at 192.168.1.121
02:51 PM Tom_L: i just cloned and built
02:51 PM Tom_L: after erasing the folder
02:51 PM Tom_L: i selected the wrong ip on purpose
02:52 PM JT-Shop: selecting the wrong ip gives me no board found at x.x.x.x
02:52 PM Tom_L: not here
02:52 PM JT-Shop: do you have something at 192.168.1.121
02:53 PM Tom_L: nothing
02:53 PM Tom_L: my server is on that on the other card
02:53 PM Tom_L: maybe that's what is causing it
02:53 PM JT-Shop: it's finding something...
02:53 PM Tom_L: :)
02:54 PM Tom_L: lemme unhook that and test it again
02:54 PM JT-Shop: ok
02:55 PM JT-Shop: I just tested and if there is something at 192.168.1.121 then you get that message
02:56 PM JT-Shop: so I can test now
02:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/mesact/mesact5.png
02:56 PM JT-Shop: it needs to either find a mesa board or say no board found
02:57 PM Tom_L: i knew it was wrong but tested to see what mesact would do
02:57 PM Tom_L: i'd compare the board selected and if it doesn't see the same board say that
02:58 PM Tom_L: well it wasn't my server but something is on that ip
02:58 PM JT-Shop: what happened is ping returned that something was there but because no mesa board was found it failed
02:58 PM JT-Shop: for sure
03:00 PM Tom_L: it's possible they could have multiple mesa cards but on different ip like that however i would suggest against that and keep them all on the 10.10.10.xx addy
03:01 PM Tom_L: iirc the server was on .120
03:01 PM JT-Shop: use angry ip to see what's there
03:01 PM Tom_L: some samsung device
03:02 PM Tom_L: i'm not sure what it is
03:02 PM Tom_L: maybe a tv etc
03:02 PM Tom_L: i used to use that ip for testing my server
03:02 PM Tom_L: but not anymore
03:02 PM Tom_L: my router lists them all and i've labelled the ones i'm sure of
03:09 PM Tom_L: angry ip didn't find anything there
03:09 PM * roycroft prefers happy ip to angry ip
03:09 PM Tom_L: but happy ips don't cause problems
03:10 PM Tom_L: whatever it is must not be on atm
03:10 PM roycroft: well i don't like problems
03:11 PM Tom_L: but angry ip probably wouldn't find a wifi one would it?
03:11 PM Tom_L: just hard wired?
03:13 PM Tom_L: does a blue dot mean inactive?
03:15 PM Tom_L: it found the server once i expanded the port range search
03:16 PM JT-Shop: not sure wat the dots mean
03:17 PM Tom_L: red..nothing, green..found something and names it, blue something but not sure what
03:17 PM Tom_L: that's my interpretation
03:17 PM Tom_L: :)
03:18 PM Tom_L: the router shows it as static.. i wonder if i left it from server testing
03:19 PM Tom_L: i forgot where that's at on this router
03:22 PM Tom_L: router doesn't show it in the static list
03:27 PM Tom_L: oh.. i was gonna build
03:34 PM Tom_L: JT-Shop, PR #37 up
03:40 PM JT-Shop: thanks
03:43 PM Tom_L: testing on rpi
03:43 PM memleak: hey guys just a reminder, that gentoo preempt_rt installer is ready to go.
03:44 PM memleak: i tested it within debian and made a few changes so system rescue is no longer required.
03:44 PM Tom_L: JT-Shop, i get that same message on the RPI4
03:45 PM Tom_L: it's picking up that ip from the wifi aparently
03:47 PM Tom_L: pcw-home, what port do mesa cards use?
04:00 PM jasen: hi andy
04:18 PM roycroft: so it appears that in the smaller size such as i need there's not nearly as much carbide tooling as is available for larger tool holders
04:18 PM JT-Shop: that's what I found as well, so a lot of searching to find what you need
05:17 PM Tom_L: roycroft, https://www.amazon.com/Indexable-Turning-Carbide-Grooving-Threading/dp/B09CHDVNZ3?th=1
05:17 PM Tom_L: https://www.shars.com/1-2-indexable-carbide-turning-tool-set-1-1-1
05:17 PM Tom_L: just get better inserts for them
05:17 PM Tom_L: after wearing those out
05:19 PM JT-Shop: looks nice
05:19 PM Tom_L: dcmt32 is one of them
05:19 PM Tom_L: D diamond
05:19 PM Tom_L: you can find a chart just about any carbide supplier
05:20 PM Tom_L: i used to know at least some of them but brain fades
05:20 PM JT-Shop: yup
05:21 PM Tom_L: https://www.mscdirect.com/browse/tn/Indexable-Cutting-Tools/Indexable-Turning-Boring/Indexable-Turning-Profiling/Indexable-Insert-Tool-Bits?navid=2107194
05:21 PM Tom_L: most certainly chinaco
05:21 PM Tom_L: but they also list the inserts
05:21 PM JT-Shop: time to call it a day
05:22 PM Tom_L: those may be aluminum.. says AL toolholder?
05:22 PM Tom_L: i wouldn't think so but who knows
05:24 PM Tom_L: ingersoll probably makes decent inserts
05:24 PM Tom_L: https://www.ingersoll-imc.com/product?ecatProductId=39665
05:26 PM Tom_L: https://www.secotools.com/article/p_03276250
05:27 PM Tom_L: those amazon ones don't look bad
05:32 PM Tom_L: you should locate extra insert screws too. nobody thinks about that
05:54 PM andypugh: Well, that was a bit of a tricky bit of troubleshooting. My touch-probe had stopped working. It turned out that I had a broken wire, a burned-out comparator, corroded contacs _and_ (the real killer) a Phoenix terminal in the Mesa board that only conducted when I pressed on the screw head with a multimeter.
05:54 PM andypugh: That last one made for some really puzzling measurements.
05:57 PM XXCoder: ouch "sometimes" makes troubleshooting so hard
06:31 PM memleak: andypugh, hey buddy!
06:31 PM andypugh: Hi
06:32 PM XXCoder: hows things andy
06:34 PM andypugh: OK. Though I just spotte4d some stray files in here: https://www.linuxcnc.org/dists/bookworm/2.9-rt/
06:35 PM andypugh: I think I can just delete them, they aren’t in my local copy of the repository.
06:35 PM Tom_L: is the buildbot down? haven't noticed much activity last couple days
06:36 PM Tom_L: maybe it's just caught up
06:36 PM Tom_L: it was going pretty steady there for a while
06:36 PM andypugh: OK, tidied up the stray files.
06:37 PM Tom_L: that would be a bugger to trouble shoot
08:22 PM pcw-home: Tom_L UDP port? 2718
08:46 PM Tom_L: thanks
08:50 PM Tom_L: i wanted to see if angry ip would recognize it given the port
08:50 PM Tom_L: but it didn't
08:51 PM XXCoder: maybe if you calm it down first
08:52 PM Tom_L: jt's new scale calc is cool
08:52 PM XXCoder: nice
08:52 PM XXCoder: jt does make good stuff
08:59 PM CaptHindsight: the Shars and similar indexable tools are adequate, but purchase better inserts
09:00 PM CaptHindsight: https://www.shars.com/products/indexable-cutting/turning-toolholders?turning_toolholder_category=Turning+Sets
09:01 PM Tom_L: i posted that earlier with a similar suggestion
09:02 PM Tom_L: or a shars set anyway
09:02 PM CaptHindsight: I know and I still did it again
09:02 PM CaptHindsight: https://www.mscdirect.com/browse/tn/Indexable-Cutting-Tools/Indexable-Inserts/Turning-Profiling-Inserts/Turning-Inserts?navid=2107174
09:02 PM Tom_L: some need extra reminders :)
09:03 PM CaptHindsight: and he doesn't like MSC but use their site as a reference and buy elsewhere
09:03 PM Tom_L: iscar makes decent cutters
09:03 PM CaptHindsight: Iscar, Sandvik Coromant, Kennametal etc
09:04 PM Tom_L: right
09:06 PM CaptHindsight: https://www.ebay.com/itm/334206765322
09:07 PM Tom_L: carboloy is an old brand
09:07 PM CaptHindsight: https://www.ebay.com/itm/175876111126
09:09 PM Tom_L: dunno how good valenite is now htat walter bought them but they used to be great
09:11 PM CaptHindsight: buy the expensive brands so that you cry when you break one
09:11 PM CaptHindsight: that will tech you to watch your feeds and speeds
09:11 PM CaptHindsight: tech/teach
09:11 PM Tom_L: or don't break it and enjoy the quality
09:12 PM CaptHindsight: https://www.youtube.com/watch?v=3LZ0M-0Q9kE
09:12 PM CaptHindsight: ISCAR ISO TURNING & Threading
09:13 PM Tom_L: i did cry a little when i cut the shank off on this holder to fit the mill: http://tom-itx.no-ip.biz:81/~webpage/cnc/valenite/valenite_holder1.jpg
09:13 PM Tom_L: was something like a 6" pencil holder
09:13 PM Tom_L: not the greatest collets
09:15 PM CaptHindsight: I once cut ~6in. off a shaft on a tool holder, instantly dull bandsaw blade
09:15 PM Tom_L: i think i used a grinder on that
09:17 PM CaptHindsight: it was some weird 4 flute face mill
09:18 PM CaptHindsight: had a shaft about 10in. long 0.5in dia
09:18 PM Tom_L: heh
09:18 PM CaptHindsight: it wasn't stable or useful at that length
09:18 PM Tom_L: asking for trouble
09:20 PM CaptHindsight: https://www.youtube.com/watch?v=TrKb3hq3C6c never tried these
09:20 PM CaptHindsight: ISCAR Anti Vibration Blade tool CGHNM
09:24 PM Tom_L: interesting anyway
09:25 PM CaptHindsight: https://youtu.be/IGuOwSGCPaQ?si=Wn93-Q3fb3hjrjWB&t=468 hah, see first thing that you have to do is sharpen them
09:26 PM CaptHindsight: Chinese brazed carbide
09:26 PM CaptHindsight: using a Chinese lathe for the demo, no close ups
09:27 PM Tom_L: the cutter might work if they know the harmonics of the tool head and counteract for that
09:29 PM Tom_L: first of all, i always thought you were supposed to grind on the face of the wheel, not the side
09:29 PM Tom_L: i know we all do.. but still....
09:31 PM CaptHindsight: once again proving that the Chinese tools are a work in progress
09:31 PM CaptHindsight: you have to finish sharpening, squaring, finish drilling oil holes, etc etc
09:32 PM Tom_L: definitely chasing threads
09:34 PM XXCoder: they should add "project" to titles
09:35 PM XXCoder: like mgn rail project
09:35 PM Tom_L: these guys got some balls: https://www.youtube.com/watch?v=fs0TzsV5NgU&pp=ygUbaW5kaWFucyBydW5uaW5nIHB1bmNoIHByZXNz
09:37 PM XXCoder: I remember that video
09:37 PM XXCoder: when people is cheaper than machines
09:43 PM CaptHindsight: You scored 72 on your citizen of the people exam, please report to the press room at 4am tomorrow and until you are 72
09:46 PM CaptHindsight: how poorly did you have to do in a Chinese school to be assigned that job?
10:50 PM CaptHindsight: https://youtu.be/qNNF-ce_km0?si=fuaYqn4zMKCmK8RI a beast just for texturing
10:51 PM XXCoder: very cool, but hate how they barely show it actually running and marking
10:51 PM CaptHindsight: yeah
10:52 PM CaptHindsight: https://www.youtube.com/watch?v=jyUCWq-wCDI ion beam milling
10:54 PM XXCoder: did you read about that amazing tiny particle accelerator?
10:54 PM XXCoder: I wonder what uses it would be in in future
10:56 PM CaptHindsight: rail gun for molecules
10:56 PM CaptHindsight: etching, drilling etc at the nanoscale
10:57 PM CaptHindsight: or welding/adding
10:58 PM CaptHindsight: nanofabrication
10:58 PM CaptHindsight: adding and removal
11:02 PM CaptHindsight: there are all sorts of devices that we need to be able to fabricate at the sub-micron level
11:02 PM XXCoder: fun
11:02 PM CaptHindsight: nanomaching and nanofabrication
11:03 PM CaptHindsight: tools and sensors that need to fit inside living cells
11:05 PM CaptHindsight: not sure if we will brute force their assembly or modify components within cells
11:07 PM CaptHindsight: https://wyss.harvard.edu/technology/dna-nanostructures-for-drug-delivery/
11:07 PM XXCoder: would be interesting to have system where old method of making cpu is used, then this is used to refine it to final form, removing all errors and such
11:09 PM CaptHindsight: exactly
11:09 PM CaptHindsight: repair circuits at the nanoscale
11:09 PM XXCoder: it would have to be automated
11:10 PM CaptHindsight: https://vimeo.com/68254051
11:10 PM XXCoder: picture manual fixing millions of spots lol
11:11 PM CaptHindsight: we do similar now with lasers to customize the die
11:13 PM CaptHindsight: or construction of circuits with multiple dies in one package
11:15 PM CaptHindsight: but nanomaching and assembly may be used to make things like sensors that fit inside a cell or a mechanism to release meds into a small group of cells
11:15 PM CaptHindsight: like targeted cancer treatments
11:15 PM XXCoder: countless uses really
11:16 PM CaptHindsight: https://www.youtube.com/watch?v=8PrPbevTDqE or smaller versions of things like this
11:18 PM CaptHindsight: the tech they fantasize about on Star Trek and similar