#linuxcnc Logs

Oct 28 2023

#linuxcnc Calendar

01:04 AM srk_ is now known as srk
02:16 AM Deejay: moin
05:11 AM Scopeuk: solarwind cutting edge are fun, he does have a how he got his business started video somewhere. Essentially he sold a house to buy the space and machines. I do like their videos
05:21 AM JT-Cave: morning
05:21 AM JT-Cave: 56°F
06:24 AM Tom_L: morning
06:24 AM Tom_L: 37F
06:29 AM JT-Cave: talk about a slap in the face...
06:29 AM JT-Cave: I purchased a mesa 7I92TF and 7I76 from you awhile ago and am finally getting around to setting up my machine. I am setting up a LinuxCNC machine and attempting to use PNCconf.
07:21 AM JT-Cave: rooster just crowed
09:30 AM Unterhaus_ is now known as unterhausen
09:39 AM Tom_L: hah
09:40 AM Tom_L: JT-Cave, reply with... that will just void the warranty and cancel any online support
09:42 AM JT-Cave: lol
09:50 AM Tom_L: or maybe it was long enough he wasn't aware of mesact
09:52 AM JT-Shop: 7i92T is pretty recent but yup he may not know about mesact
09:52 AM Tom_L: still 37°F ... hasn't warmed any
09:52 AM JT-Shop: I was thinking of being a bit nicer to him lol
09:52 AM JT-Shop: steady at 55°F here
09:52 AM JT-Shop: smells like rain so dunno about cutting more rounds or not
09:53 AM Tom_L: if you're short on firewood.. better get it while you can
09:56 AM Tom_L: i should go sharpen my sawblade today
09:57 AM Tom_L: got dull cutting some posts out for the niece
09:57 AM Tom_L: but i expected that
09:58 AM JT-Shop: I'm cutting next years firewood
09:58 AM JT-Shop: I'm thinking of replying like it's automated
09:58 AM Tom_L: give it a year to dry.. or was the tree dead already?
09:59 AM JT-Shop: Thank You for your purchase at Mesa US if your asking about tracking information I will get back to you shortly with your tracking number
09:59 AM JT-Shop: dead tree but it still needs to dry before using it
10:00 AM Tom_L: haven't had the saw sharpener out in a while.. wonder if i still know how to use it
10:02 AM Tom_L: mmm.. keep hearing thunder, checked the radar and looks like we may get a little
10:23 AM JT-Shop: got most of the limb wood bucked up and it's raining now so much for lumber jacking
11:10 AM Scopeuk: I still love https://map.blitzortung.org/#1/28.8/8 for lightning. Crazy what a bunch of hobbiests can pull of withopen hardware and the internet
11:16 AM Tom_L: 3 blades sharp and cleaned up the shop a tiny bit
11:17 AM JT-Shop: finished the oil change on the Bluewing starting on changing the front tire but I feel a nap coming soon
11:17 AM Tom_L: and it's raining here as well
11:18 AM Tom_L: so since honda closed you're taking it to JT's service center?
11:18 AM JT-Shop: this time... found out why it closed
11:18 AM JT-Shop: a new super cycle and atv dealer opened up a few years ago close to Jonesboro
11:20 AM JT-Shop: https://www.jonesborocycle.com/
11:24 AM Tom_L: figures
11:24 AM Tom_L: that's probably what happened to the honda & yamaha dealers here
11:25 AM JT-Shop: the one that closed was a small dealer no doubt family owned
11:25 AM Tom_L: although the yamaha dealer's owner & main service guy both died
11:25 AM JT-Shop: but they had good service people
11:25 AM Tom_L: yup
11:25 AM Tom_L: a good % of my contacts like that are dying off
11:26 AM Tom_L: certainly no big chain or box store
11:26 AM Roguish: hey JT, does your starlink move around by itself?
11:26 AM JT-Shop: yes
11:26 AM Roguish: a friend got one for his trailor, mounts it on a tall pole. says it moves round 2 axis by itself
11:26 AM JT-Shop: it mainly moved when I first plugged it in... as soon as it located a sat it stayed in that position
11:27 AM JT-Shop: it will search for the best sat if you move it
11:27 AM Roguish: ok, that's why. figured. pretty fancy
11:27 AM Tom_L: Roguish, did you get your ip thing figured out?
11:28 AM Tom_L: for a server
11:28 AM Roguish: no, not yet. not big hurry.
11:28 AM Tom_L: i'd be curious if you find something better
11:28 AM JT-Shop: nap time
11:28 AM Tom_L: for what i do, i'm not all too concerned
11:29 AM Roguish: finally getting fall like here. yesterday and today started out right at 40
11:30 AM Tom_L: dropped from 37 to 35 here
11:40 AM roycroft: we got our first frost last night
11:42 AM Roguish: Mt Ashland got a dusting of snow Thursday
11:45 AM Roguish: ok, over 50 outside now. gotta get some yard work done.....
12:13 PM solarwind: Scopeuk also metric units which is a breath of fresh air
12:14 PM solarwind: imperial irritates me to no end
12:35 PM roycroft: there's snow in the passes in central oregon
12:40 PM JT-Shop: the Bluewing service manual weights 11 1/2 pounds
12:45 PM Tom_L: that was when they still made them out of wood instead ob bits & bytes
12:49 PM JT-Woodshop: hmm wonder if I have a 22mm socket in here or not?
12:50 PM JT-Woodshop: raining too hard to go to the machine shop and get one
12:50 PM Tom_L: just annoyingly dripping here
12:51 PM Tom_L: but we need moisture and i'd rather see rain than snow
12:51 PM JT-Woodshop: I'm hoping we don't get any ice from this crap
12:52 PM Tom_L: i'm afraid we will
12:52 PM JT-Woodshop: guess I'll work on the broken bike carrier seeing how I can't order that part
12:53 PM JT-Woodshop: and like Leo I'll make a sketch of the parts before I cut them off
01:54 PM Tom_L: definitely nap time now
04:01 PM JT-Shop: front tire changed but the rf fork seal was leaking so very dirty under the covers
04:01 PM JT-Shop: gotta clean that up before putting the wheel back on
04:03 PM Tom_L: what holds the bike while you're chaning tires?
04:04 PM JT-Shop: the center stand and a small floor jack under the engine
04:04 PM JT-Shop: for the front tire only
04:05 PM * JT-Shop takes 5 and watches Leo's new video and sips a Weinstephener
04:08 PM JT-Shop: 1 1/2" of rain so far...
04:13 PM Tom_L: i think we took most of it the other day
04:13 PM Tom_L: saved a little...
04:14 PM Tom_L: still light rain here though
04:14 PM JT-Shop: radar is a lot of yellow over us
04:15 PM Tom_L: still hear thunder but not doing alot
04:16 PM Tom_L: freezing rain etc not too far NW of us
04:16 PM JT-Shop: yuck
04:17 PM Tom_L: around Hutchinson which is ~50mi NW
04:17 PM XXCoder: ice day eh
04:18 PM Tom_L: your map is green, yellow and oranges... mine is green, red, purples and pink :)
04:18 PM Tom_L: mine is prettier
04:18 PM JT-Shop: lol
04:18 PM Tom_L: which is not a good thing :)
04:20 PM Tom_L: i wouldn't be surprised to see ice in the morning
04:22 PM Tom_L: i remember as a kid, Halloween was usually cold and wet so that's about par
04:41 PM JT-Shop: https://radar.weather.gov/station/kpah/standard
04:41 PM JT-Shop: I think my radar is prettier than yours lol
04:41 PM JT-Shop: https://radar.weather.gov/station/kict/standard
04:43 PM Tom_L: just a bigger canvas :)
04:44 PM Tom_L: seems like it gets cooler across the river on yours
05:18 PM JT-Shop: https://youtu.be/GMrkrKREIpI?t=1051
05:18 PM JT-Shop: using a center drill for a spotting drill
05:21 PM Tom_L: i've been guilty of that a time or so
05:49 PM roycroft: everybody's done it
05:49 PM roycroft: few want to admit it
05:50 PM JT-Shop: my first machine was a mill so no reason to have center drills until I got the Samson lathe
05:51 PM XXCoder: I didnt do it, but thats because I follow paper on setups etc
05:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/Tool_Holder2.jpg
05:57 PM Tom_L: sometimes to save a tool change since it's manual i'll use that carbide chamfer tool for spotting
05:58 PM Tom_L: instead of the spot in T1
06:00 PM * JT-Shop calls it a rainy night
06:01 PM roycroft: so i found the bad news, twice
06:02 PM roycroft: my amp let out some magic smoke last summer, and i got a recap kit for it, knowing that it would need it, since it's almost 50 years old
06:02 PM roycroft: i just went to start working on it
06:02 PM roycroft: i found first of all that all eight heat sink mounts were broken
06:02 PM roycroft: the heat sinks are hot - they carry 40dc
06:02 PM roycroft: 40vdc
06:02 PM roycroft: if they touch the chassis it's time for sparks
06:03 PM roycroft: they are also nla, so i'm going to have to 3d print some
06:03 PM roycroft: i also found the even worse problem - someone had serviced the amp before, and not particularly well
06:03 PM XXCoder: nla?
06:03 PM roycroft: no longer available
06:03 PM XXCoder: ok
06:04 PM roycroft: so i'm going to have to figure out what mods this person did, and either undo them or troubleshoot them as part of the repair
06:13 PM CaptHindsight: we had snow on Halloween a couple of years ago
06:14 PM CaptHindsight: we used to get a first dusting around Thanksgiving
06:15 PM CaptHindsight: we nearly hit 80F a couple of days ago and now it's back to 40's
06:17 PM CaptHindsight: how is the Portland through Seattle area this fall?
06:18 PM CaptHindsight: I think it's snowing up in WI around Skunkworks area
06:18 PM XXCoder: sunny now, random rains across weeks.
06:18 PM XXCoder: used to rain more but hey its good
06:21 PM CaptHindsight: we are going to have a couple nights next week down to 20F
06:22 PM CaptHindsight: and light snow again on Halloween
06:26 PM CaptHindsight: nothing wrong with a carbide center drill for spot drilling
06:26 PM roycroft: except the angle is wrong
06:27 PM roycroft: but it's better than no pilot hole at all
06:27 PM CaptHindsight: old McIntosh or similar amp that died?
06:27 PM roycroft: yes
06:27 PM roycroft: mc2100
06:27 PM roycroft: my trusty old amp
06:27 PM roycroft: it's had the output transistors replaced before
06:27 PM roycroft: but it's not been recapped
06:28 PM CaptHindsight: https://www.mcintoshlabs.com/legacy-products/amplifiers/MC2100
06:28 PM roycroft: i need to make the heat sink brackets before i do anything else
06:29 PM roycroft: that would be my amp
06:29 PM CaptHindsight: we are still learning about what polymers do after 50+ years
06:29 PM roycroft: my pre-amp is a c28, and my tuner an mr-73
06:29 PM roycroft: the mr-73 has a magic eye
06:29 PM roycroft: a single vacuum tube, and it's the last tuner mcintosh made with vacuum tubes
06:30 PM CaptHindsight: my and my close friends parents were born on the 1920's
06:30 PM roycroft: https://www.mcintoshlabs.com/legacy-products/preamplifiers/C28
06:30 PM CaptHindsight: they had all sorts of tube amps
06:30 PM CaptHindsight: mstly from the late 40's and 50's
06:31 PM roycroft: https://www.mcintoshlabs.com/legacy-products/tuners/MR73
06:31 PM CaptHindsight: i have wondered where all those thousands of thick vinyl 78's are now
06:32 PM * roycroft has a victrola (crank model) and a heap of '78s
06:33 PM CaptHindsight: and even older shellac 78's
06:33 PM roycroft: it still works
06:33 PM roycroft: and i can still buy needles for it
06:33 PM roycroft: victrola needles were supposed to be single use
06:33 PM roycroft: but i use mine for longer
06:34 PM CaptHindsight: I wouldn't want to play any original records with a needle
06:34 PM roycroft: the old edison phonographs had diamond needles, though, which lasted indefinitely
06:34 PM roycroft: but victrola needles are mild steel
06:34 PM CaptHindsight: laser scan non-contact
06:35 PM roycroft: i can play my victrola during a power outage
06:35 PM roycroft: try that with your fancy lasers
06:36 PM CaptHindsight: I don't want to lose the materials
06:36 PM CaptHindsight: I wonder how many virgin LP's are still around
06:40 PM CaptHindsight: I have wondered how long all the paranoid metadata currently being stored on rotating media will be around
06:41 PM CaptHindsight: will they just mirror everything in another 10-20 years on something that lasts longer or just use the cheap media of the day in 2040
06:57 PM roycroft: i actually just got a virgin lp that i've been looking for since my original copy got stolen in 1980
07:09 PM Tom_L: CaptHindsight, if you're referring to the pic i posted, that's a chamfer tool i had ground from an EM
07:11 PM Tom_L: roy the stolen copy probably could tell more storries
07:12 PM CaptHindsight: the youtube about the propeller
07:12 PM Tom_L: ok
07:13 PM Tom_L: spots are usually a large diameter too so they have less tendency to wander
07:19 PM roycroft: i just want to hear the music again
07:20 PM roycroft: the album was never released on cd
07:33 PM roycroft: it's pretty amazing that i did not have fireworks from my amp years ago
07:34 PM roycroft: 7 of the 8 heat sink brackets are broken, and three of the four heat sinks are just a hair's width from touching the chassis
07:34 PM Tom_L: wonder what caused them to break
07:34 PM Tom_L: it is top end audio stuff after all
07:35 PM roycroft: the original brackets appear to be made out of bakelite, which would be a bit odd for around 1969
07:35 PM roycroft: but that's what they look like
07:35 PM roycroft: tom_l: the amp being improperly shipped
07:35 PM roycroft: it weighs 70ish lbs
07:35 PM Tom_L: yeah and bakelite is kinda brittle
07:35 PM roycroft: and if it's not well-padded, it will get banged up pretty badly in shipment
07:36 PM roycroft: mcintosh still make shipping boxes for all their vintage and current gear
07:36 PM roycroft: one can purchase them - they are double boxes, with lots of padding in between the boxes
07:36 PM roycroft: my amp was not shipped to me in a mcintosh box
07:37 PM * roycroft thinks he has some petg, which should make for some decent brackets
07:38 PM roycroft: apparently mcintosh were still selling the brackets for $12 each up until fairly recently
07:38 PM roycroft: but they no longer supply them
07:38 PM roycroft: imagine a company discontinuing parts after only 50 years!
07:39 PM roycroft: they still make the glass front panels for all their vintage gear, but sometimes one has to wait up to a year to get one
07:39 PM roycroft: they make them in small batches on demand
08:12 PM CaptHindsight: roycroft: have a pic of the heatsink holders?
08:12 PM CaptHindsight: holders/brackets
08:13 PM XXCoder: it slightly annoys me when one of yt channels show off laser de-rust and stuff. it costs so much money, easily 10k usd, or was it 100k?
08:13 PM XXCoder: way beyond realm of buying lol
08:17 PM roycroft: i'll have a cad drawing shortly
08:18 PM XXCoder: 19,950 euro for most cheap machine, and most expensive 110k euro lol
08:21 PM roycroft: one of the eight was not broken, and i'm measuring that one up
08:21 PM XXCoder: https://youtu.be/M28IDsw8wa4 btw the video im talking about
08:21 PM XXCoder: usually great channel
08:22 PM XXCoder: hes restoring over 100 years old pencil sharper
08:27 PM roycroft: hmm, we have a heavy cloud cover all of a sudden
08:27 PM roycroft: maybe it won't frost again tonight
08:27 PM XXCoder: cloud of dooooom
08:35 PM CaptHindsight: https://www.youtube.com/watch?v=NcL-6QziU3Y much lower cost laser paint removal
08:36 PM XXCoder: he usually uses chemical stripping stuff. I guess he gonna make money and demo machine too expensive for most people
08:36 PM CaptHindsight: https://www.alibaba.com/product-detail/Raycus-Laser-Raycus-RFL-C1000-1000w_1600191533077.html?s=p
08:37 PM CaptHindsight: 1KW fiber laser = $$3k
08:39 PM CaptHindsight: beamsteering is cheap and ssimple
08:39 PM XXCoder: end result looks cool
08:39 PM XXCoder: I have one of those old school pencil sharper that has 2 of cutting parts rotating around pencil
08:39 PM CaptHindsight: lets see if there is a Chinese unit already set up for paint removal
08:40 PM XXCoder: lol video just shows sides with very low fps
08:40 PM CaptHindsight: https://www.alibaba.com/product-detail/Hot-sale-1000W-1500W-2000W-handheld_1600599594665.html?spm=a2700.shop_index.86.3.458f1e31D1kgBY
08:40 PM XXCoder: I expected to see in use example
08:41 PM XXCoder: thats not bad really
08:41 PM CaptHindsight: ^^ video in that last link
08:41 PM XXCoder: already watching. thats what I said not bad really on ;)
08:41 PM CaptHindsight: ah ok
08:42 PM CaptHindsight: https://www.alibaba.com/product-detail/Pulse-Paint-Rust-Removal-Laser-Cleaning_1600810994448.html?spm=a2700.galleryofferlist.p_offer.d_image.6d747cfdYMdyI3&s=p
08:43 PM CaptHindsight: now these won't last for years and years
08:43 PM XXCoder: freedom lol
08:43 PM CaptHindsight: probably 1-2 with daily use
08:44 PM XXCoder: 1-2 days? ;)
08:44 PM CaptHindsight: with some proper cooling and thermal management
08:44 PM CaptHindsight: 1-2 years
08:44 PM CaptHindsight: like most chinese tools like welders and marking lasers
08:44 PM XXCoder: :) yeah I guess if need to de-rust a lot of stuff along with stuff thats not too bad a deal
08:45 PM CaptHindsight: China is pretty much harbor freight everywhere
08:45 PM CaptHindsight: thats just what they do, they make cheap tools that last for a year
08:45 PM XXCoder: yeah
08:45 PM XXCoder: its good when you dont really need it a lot honestly. 100k or 3k
08:45 PM CaptHindsight: 10 years ago I could buy a 200A tig welder there for $300
08:46 PM CaptHindsight: an inverter type
08:46 PM CaptHindsight: they don't make tools to last 10-20 years like we used to
08:47 PM CaptHindsight: everything is for now
08:47 PM XXCoder: enshittifcation always wins at end
08:48 PM CaptHindsight: with some tweaking you can get many tools to last much longer
08:48 PM CaptHindsight: like HF power/cordless tools
08:49 PM CaptHindsight: and derate everything by 50%
08:53 PM CaptHindsight: one $100K machine vs how many $3k cheapos? 33 cheap lasers might last 16-33 years
08:55 PM CaptHindsight: https://www.youtube.com/watch?v=E3YCACZQ72Q 5kw laser 10 years ago
08:58 PM XXCoder: I guess those parts is radioactive
09:12 PM roycroft: waiting for the file sync and then i'll have a render of the part
09:14 PM CaptHindsight: Matthew Perry dead at 54
09:20 PM CaptHindsight: Richard Moll passed the other day but he was 80
11:26 PM solarwind: CaptHindsight spot on about the derating
11:27 PM solarwind: VFD rated for "7.5kW" ? That's not a normal operating point, that's a "never exceed" parameter lol
11:28 PM solarwind: But $200 for a "7.5kW" Huanyang VFD is totally worth it. I have like 10 of them and zero failures as long you stay well within the nameplate rating
11:30 PM solarwind: I'm in the process of building a 600V VFD and I'm choosing 1300V IGBTs _minimum_, and rated for at least 2x the designed operating current
11:42 PM roycroft: those vfds are fine
11:42 PM roycroft: but there is one caveat: they're rated for 3 phase input
11:43 PM roycroft: if your input is single phase, you should derate the vfd
11:43 PM roycroft: if i need a 2.2kw vfd, for example, and i'm feeding single phase power, i'll get a 3kw huanyang for it
11:46 PM roycroft: it's probably too late, but i have a render of the heat sink mount now
11:46 PM roycroft: i got distracted for a couple hours and just now got back to the project
11:46 PM roycroft: roycroft.us/Heat-Sink-Mount.jpeg
11:46 PM roycroft: i need to add some fillets still, but that's the basic part
11:50 PM solarwind: I give them even better input: DC at maximum voltage
11:51 PM solarwind: So ~340V DC
11:51 PM roycroft: the only time i had a huanyang vfd fail is when i had a motor it was driving fail
11:51 PM roycroft: the motor went up in smoke, and then a few seconds later the vfd released its own magic smoke
11:52 PM solarwind: But yes they work well, and I love being able to control them over RS485
11:55 PM roycroft: i ordered one a couple years ago for a new motor i was putting on my mill/drill
11:56 PM roycroft: after i ordered it someone from huanyang engineering contacted me and asked what my application was
11:56 PM roycroft: when i told him he said there was a new model vfd that is better for high torque/low frequency applications that might work better for the mill
11:56 PM roycroft: so i got that instead, and it has worked brilliantly
11:57 PM roycroft: but i was more impressed that they reached out to recommend a different product
11:57 PM roycroft: you don't see that kind of customer service from most american companies any more, much less from asian companies
11:59 PM roycroft: if anyone is interested, it's their gt series, as opposed to the more common hy series