#linuxcnc Logs
Jan 22 2020
#linuxcnc Calendar
12:40 AM veegee: What paper for technical pens?
12:45 AM veegee: There is the Rhodia stuff I use with my fountain pens. I guess I could use them with the rotring isograph too
12:45 AM veegee: Having a needle metal nib, they really need a super smooth paper that won't catch on the nib
12:45 AM veegee: I like to do things a bit old school
01:36 AM Deejay: moin
02:22 AM Loetmichel: *GNHIHI* Advertisement from an IT refurbisher... "we just got new stock from a well known bancrupt travel agency.... cant say who though!" A bit above in the text: "Thomas is astonished to see this!" :-)
04:55 AM jthornton: morning
04:55 AM XXCoder: hey
05:00 AM miss0r: 'ello
05:03 AM Tom_L: morning
05:26 AM Tom_L: 33°F and sloppy snow
05:35 AM jthornton: Rain, snow, freezing rain, and sleet before 4am, then freezing rain between 4am and 5am, then rain likely after 5am. Low around 32. South southeast wind 3 to 7 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow and sleet accumulation of less than a half inch possible.
05:35 AM XXCoder: here it varies hugely. rain, light rain, rain showers AND clody!
06:52 AM jymmmm: Good morning
06:54 AM jymmmm: jthornton: You only missed 8ft of snow in an hour
06:55 AM XXCoder: wonderful almost spring weather here heh
07:00 AM jymmmm: XXCoder: So you are running around outside in shorts and a tshirt?
07:00 AM XXCoder: i didnt say spring
07:00 AM XXCoder: but yeah im just using waterproof windbreaker
07:00 AM XXCoder: 40f is not really cold
07:01 AM XXCoder: well 45f or so. 40f is bit cold
07:01 AM jymmmm: 40F and 80% is
07:03 AM jymmmm: that damp cold is a bitch
07:03 AM XXCoder: you must have missed the long and varied weather i listed that happened today
07:03 AM XXCoder: it barely didn't rain :)
07:03 AM XXCoder: meaning it didnt stop raining basically all day
07:06 AM jymmmm: The rain can be really weird here, nonnn-stop for 4 day continously
07:06 AM jymmmm: Got werewolf??? https://www.moneymetals.com/silver-bullet-1-troy-oz-999-fine-silver/223
07:06 AM XXCoder: I call it ever-washing-a-ton
07:06 AM jymmmm: lol
07:07 AM XXCoder: this year have been dry actually. i got reminded binch of times what dry roads look like.
07:07 AM XXCoder: but 2 years ago I saw weird color on road, took me a bit to remember thats the color road is when its dry
07:07 AM XXCoder: its been months of solid wet roads
07:08 AM XXCoder: im not saying it never stopped raining, but it rains often enough
07:08 AM jymmmm: Yeah, I've never seen non-stop rain before here, kinda freaky
07:10 AM jymmmm: I think that silver bulleet is funny
07:10 AM XXCoder: lol
07:10 AM jymmmm: Hey 50 cal https://www.moneymetals.com/silver-bullet-10-troy-oz-999-fine-silver-50-cal/234
07:11 AM beachbumpete1: mornin
07:11 AM XXCoder: riciously expensive
07:14 AM jymmmm: XXCoder: it's 10 ounces
07:14 AM XXCoder: i have few metal samples somewhere lol
07:14 AM XXCoder: from tungsein to titanium
07:14 AM jymmmm: ah
07:14 AM XXCoder: its all 1/2" rod inch long
07:15 AM XXCoder: so you can REALLY tell density differenve
07:15 AM jymmmm: the .45 cal is one ounce of silver
07:15 AM XXCoder: titanium feels like plastic compared to tungsein which is close to gold.
07:15 AM jymmmm: which is heavier tungsten or gold?
07:16 AM XXCoder: gold I think, but not by much
07:16 AM XXCoder: thats why people use tungsein for gold fake scams
07:17 AM jymmmm: gotcha
07:17 AM XXCoder: anyway its not too expensive, my cyclinder sample was umm $15 something? been a long time
07:18 AM XXCoder: same one in gold's by over 2 thousand bucks. asked for rough price for lols
07:19 AM jymmmm: lol
07:20 AM XXCoder: too bad really wanted to compare tungsein and gold but price simply is too expensive, even now
07:24 AM XXCoder: anyway off to bed before I die from lack of sleep
07:24 AM jymmmm: Just ask if you can borrow some
08:22 AM Tom_L: its density of 19.25g/cm3 is just about the same density as gold (19.3g/cm3)
08:24 AM Tom_L: jymmmm, want a gold bar? https://www.businessinsider.com/china-tungsten-gold-2012-9
08:25 AM jymmmm: lol, yeah, no thanks =)
08:25 AM Tom_L: just do the drop test
08:26 AM Tom_L: tungsten will crack
08:42 AM SpeedEvil: Or buy it from reputable sources.
08:43 AM SpeedEvil: Reportedly, some are using tungsten dust, which doesn't crack
08:48 AM miss0r: bah.. My old CNC was compatible with both JIS B6339 AND DIN 69871. The new one will only accept DIN 69871... Most, by far, of my tooling is the JIS bullcrap.. This is gonna be expensive
08:49 AM Loetmichel: *finally done* WHAT a mess... *starts CNC router and puts a sheet of 1,5mil alu on it* -> http://www.cyrom.org/palbum/main.php?g2_itemId=17648&g2_imageViewsIndex=1
08:50 AM miss0r: woah, Loetmichel :)
08:51 AM miss0r: syyl: feel pitty with me :)
08:52 AM miss0r: miss0r: bah.. My old CNC was compatible with both JIS B6339 AND DIN 69871. The new one will only accept DIN 69871... Most, by far, of my tooling is the JIS bullcrap.. This is gonna be expensive
08:57 AM jthornton: yikes
09:13 AM miss0r: meh... good'ol kemmler. Only 800ish euro
09:32 AM * SpeedEvil thinks of Loetmichel while reading https://www.oculus.com/quest/accessories/?locale=en_GB
09:34 AM SpeedEvil: (in that Oculus go + fiber might be really really secure)
09:35 AM Loetmichel: depends if the electronics in the oculus is shielded
09:35 AM Loetmichel: i doubt it ;)
09:35 AM Loetmichel: weight and so on ;)
09:37 AM SpeedEvil: and yes.
10:20 AM beachbumpete1: miss0r damn that sucks
10:59 AM Loetmichel: *shitshitshitshit* ... 9mm to long... 567mm measured,designed with 576mm... *Donns the dunce cap* -> http://www.cyrom.org/palbum/main.php?g2_itemId=17651&g2_imageViewsIndex=1
11:02 AM roycroft: perhaps you shouldn't program ncn machines if you're dyslexic
11:19 AM jthornton: weird raspbian lite with RT kernel plays my music but raspbian with the normal kernel has a weird error
12:12 PM bbsr_5a: Guten Abend ist das ein Deutscher Kanal Alles in Deutsch auf dem Bildschirm
12:13 PM bbsr_5a: Is someone here for a CNC Question on MESA 7i92
12:14 PM bbsr_5a: pcw_mesa, Sir you got Mesa in Nick may i Ask you about configuration Problem
12:15 PM sensille: just ask away and see if someone can help
12:16 PM bbsr_5a: Last Week we got a CNC from a Other School full running But i get on Z Following error
12:17 PM bbsr_5a: its a Mesa 7i92
12:17 PM bbsr_5a: there is no different from all axis XYZACV in settings
12:18 PM bbsr_5a: the error pops up on 2Z Gcode lines Zvalue from the Postprocess
12:18 PM CaptHindsight: bbsr_5a: open loop with stepper motors?
12:18 PM bbsr_5a: Like G0 Z70 Folowed by G1 Z68 F500
12:19 PM bbsr_5a: Yes open loop
12:20 PM bbsr_5a: As there is no feedback from the driver and or the stepper itself it is only the INI
12:21 PM bbsr_5a: so i did Try to get values VEL and ACC down also Stepgen_ACC
12:21 PM bbsr_5a: more then 1/2
12:21 PM bbsr_5a: but still error
12:22 PM CaptHindsight: http://linuxcnc.org/docs/2.4/html/common_Stepper_Diagnostics.html
12:22 PM bbsr_5a: and a mashine Running perfect at 120VEL downconfig to 45 is AS i Think the Problem somwherelse
12:23 PM bbsr_5a: 2.4 is very old
12:23 PM CaptHindsight: same approach to diagnosing
12:25 PM bbsr_5a: i think i did the wrong direction
12:26 PM CaptHindsight: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Following_Error
12:26 PM bbsr_5a: Min_Ferror from 0,05 to 0,01
12:26 PM bbsr_5a: what is a good MIN_ferror 0,5
12:27 PM CaptHindsight: the one that works :)
12:28 PM CaptHindsight: have to go, looks like you're on the right course
12:28 PM bbsr_5a: Thank You
12:38 PM unterhaus: anyone have any idea about the real time performance of a Xeon?
12:38 PM unterhaus: penn state selling Dell T3500 workstations for $25
12:51 PM CaptHindsight: unterhaus: depends a lot on the BIOS, some Dells don't give you many BIOS options so you can't kill power management
12:54 PM Jymmm: unterhaus: link?
01:49 PM unterhaus: Jymmm in person only
01:50 PM unterhaus: have to check the power management, I have some contemporaneous T5500, which is the dual processor version
01:51 PM unterhaus: I see the ebay price is as low as $12
01:53 PM Jymmm: link? lol
01:57 PM unterhaus: only problem is that Dell figured out that an extra 5 pounds of case costs $1 and makes it seem a lot higher quality
01:58 PM unterhaus: they are really nice desktops though.
02:02 PM Jymmm: unterhaus: whats the link to this $12 one?
02:03 PM unterhaus: https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1312.R1.TR0.TRC2.A0.H0.X.TRS4&_nkw=dell+T3500&_sacat=0
02:03 PM unterhaus: does that work?
02:04 PM Jymmm: It works, but the $53 shipping doens't, lol thank you =)
02:27 PM unterhaus: they weigh a lot
02:51 PM SpeedEvil: Can you stand on them?
02:52 PM SpeedEvil: - still have my old (90s) full tower.
03:10 PM SpeedEvil: miss0r: this is only related in spirit to your problem.
03:10 PM SpeedEvil: https://www.dailymail.co.uk/news/article-358450/Why-nearly-impossible-candle-fits-holder.html
03:10 PM SpeedEvil: 'Now, however, Britain is being flooded with cheap candles from Europe and China which are made to metric measurements - meaning they will always be slightly too big or slightly too small for imperial candlesticks.
03:12 PM XXCoder: lol
03:13 PM SpeedEvil: - I was looking for figures to compute the time a modern 'candle' could last. Came to around 10 days, for LED/lithium.
03:13 PM XXCoder: my minecraft torch toy is still going couple years after I bought it
03:14 PM Tom_L: a candle stick or a jar candle?
03:14 PM Tom_L: what size jar?
03:15 PM Tom_L: what size candle stick?
03:15 PM SpeedEvil: ~20mm*150mm or so, producing the same light output
03:15 PM Tom_L: if a jar does it have 1 or more wicks?
03:15 PM Tom_L: gawd you didn't think this thru very well.... :)
03:16 PM Tom_L: besides leds don't leave soot in the room
03:21 PM CaptHindsight: European or African candle, .....RIP Terry Jones
03:22 PM Tom_L: the catholic church should have good data on candle life
03:22 PM Jymmm: SpeedEvil: Parrafin candle?
03:22 PM SpeedEvil: Jymmm: yes
03:23 PM CaptHindsight: John Cleese "Two down, four to go"
03:23 PM Jymmm: SpeedEvil: IIRC a tea light candle will burn contonously for about 3.5 to 4 hours
03:24 PM SpeedEvil: yeah - the above type of candle would burn out in some 6, I guess.
03:24 PM SpeedEvil: (it'[s been a while since I burned a candle all teh way)
03:25 PM XXCoder: bah forgot to add ;) in case you guys was thinking I was serious lol
03:25 PM Jymmm: SpeedEvil: That tea light candle had a wid shield on three sides
03:25 PM Jymmm: wind*
03:27 PM Jymmm: SpeedEvil: There was a one year LED circuit that ran off 2x D batteries
03:27 PM SpeedEvil: yeah - that's easy to do.
03:28 PM SpeedEvil: I was meaning something that put out the same amount of light as a conventional candle, and was the same size.
03:28 PM Jymmm: "TOP HAT" led and a difuser
03:29 PM SpeedEvil: It runs for about 10 days, not 6h, despite initially having only 1/300th of the stored energy
03:29 PM Jymmm: what runs 10 days? something you built?
03:30 PM CaptHindsight: is radiation an issue? :)
03:30 PM Jymmm: CaptHindsight: not YET =)
03:30 PM SpeedEvil: Jymmm: A LED lamp the same size and shape and brightness as a candle.
03:31 PM CaptHindsight: including the batteries?
03:31 PM SpeedEvil: yes
03:33 PM XXCoder: https://static.boredpanda.com/blog/wp-content/uploads/2020/01/1218999459675287553-png__700.jpg
03:33 PM XXCoder: geez thats real house
03:33 PM XXCoder: looks like extremely detailed snow-house
03:33 PM CaptHindsight: too big but 295 hours https://survivorsfortress.com/best-emergency-lanterns/#noOne
03:35 PM Jymmm: candle https://www.bathandbodyworks.com/dw/image/v2/BBDL_PRD/on/demandware.static/-/Sites-master-catalog/default/dw23514c2e/hires/024362010.jpg?sh=471
03:37 PM CaptHindsight: does it have to smell lie anyones private bits? (reference to news story from last week)
03:37 PM CaptHindsight: lie/like
03:37 PM Jymmm: SpeedEvil: CANDLE... https://editorial01.shutterstock.com/wm-preview-1500/7940593g/4d6a6a06/indonesia-chinese-lunar-new-year-jan-2015-shutterstock-editorial-7940593g.jpg
03:38 PM Deejay: gn8
03:38 PM Jymmm: Deejay: gn9
03:40 PM CaptHindsight: https://www.amazon.com/dp/B00ABUSWR2/ 30 days of runtime on Low, but too large
03:48 PM CaptHindsight: SpeedEvil: what have you found?
03:49 PM SpeedEvil: CaptHindsight: What products are available are uninteresting to me, as it's just a battery+LED and is trivially DIYable.
03:49 PM CaptHindsight: I must have misunderstood
03:50 PM CaptHindsight: who currently makes the highest efficiency LED's?
03:50 PM SpeedEvil: Several makers - cree is amongst them. 200lm/W or so.
03:54 PM CaptHindsight: just wondering since Cree had stated back in 2014 they hit 300lm/W
04:39 PM Jymmm: I'm playing with COB's instead,
04:40 PM Jymmm: Still need to find a nice control circuit
05:29 PM _unreal_: ve7it, hello, just got home, I'm still waiting on the damn OPAMPS I dont get it
05:36 PM ve7it: hey... I got some sent to me as samples.... you could try the manufactures web site and see if they still do that.. they usually send them by courier for free.
05:37 PM _unreal_: heeh I just got my money refuned
05:37 PM _unreal_: refunded, they screwed up the order from the looks of it
05:37 PM _unreal_: so maybe I'll get them for free?
05:38 PM _unreal_: going to start soldering parts on the boards to night. I'm a little confused on what TP points are what? the pcb picture only shows TP's and the schematic talks about locations. so I guess i'm going to have to trace out the traces :/
06:06 PM _unreal_: ve7it, would you suggest mounting all 3 driver boards to one heat sink? or separate them?
06:09 PM ve7it: they could all be lined up on one long heatsink... they probably wont all be working at full load at the same time and will share nicely
06:10 PM _unreal_: ya I have a nice large long heat sink
06:10 PM ve7it: I believe you need heatsink isolators as the tab of the opamp will be active.
06:10 PM _unreal_: I got those :)
06:10 PM _unreal_: TONS
06:11 PM ve7it: good... they are a larger footprint than normal
06:11 PM _unreal_: purhced a $5 bag of like 100 for tip3055 or something like that THE BIG can transistors
06:11 PM ve7it: might work
06:12 PM _unreal_: they should work just fine
06:12 PM _unreal_: they are much larger
06:12 PM ve7it: cool
06:12 PM _unreal_: so I'm only wiating on the opamps and the mur410
06:15 PM ve7it: https://drive.google.com/open?id=11Df3q-_gV5Ahx0efpGlRXLm1nQ1lXxX2 working on this at the momment.... its a variable load for testing batteries and power supplies.. part of a dc power supply panel I built earlier
06:16 PM _unreal_: oh speaking of ESP
06:17 PM _unreal_: ve7it, I Just got a tessel 2 microcontroller, built in USB/wifi ETHERNET
06:17 PM _unreal_: dont know jack about it but I got it from good will for $2 un opened
06:17 PM ve7it: spent the last 2 days rewriting the code that my friend used when he built his... of course I had to add a few features :}
06:17 PM _unreal_: I assume its more of an IOT uC
06:17 PM _unreal_: code for?
06:17 PM _unreal_: that tester?
06:19 PM ve7it: yup... it uses a spi 320x240 tft display for setting up and monitoring load performance.. a couple of big fets on a heatsink are used as computer controlled variable resistors
06:19 PM _unreal_: AHH.. I see
06:20 PM _unreal_: ve7it, just dbl checking
06:26 PM _unreal_: the little CAPS between the BIG caps on the servo board. are electrolidic? or ceramic? the schematic show's +/- but the picture of the driver on your site has what looks like a ceramic?
06:26 PM _unreal_: I ordered electrolytic
06:26 PM _unreal_: the 35/10uf
06:26 PM ve7it: a shack warmer... can put 20A load on a battery and have it shut off when its voltage drops below a value.. or shut off after a certain time... it then shows how manh mAhr or Ahr were discharged
06:26 PM _unreal_: hehe I setup a dropping resistor once to a heat sink and a solar panel for an ice shack years ago. WORKED great
06:26 PM _unreal_: sucked at night though. had to swtich to the nano "can" stove
06:26 PM _unreal_: so are the caps I ordered fine?
06:26 PM ve7it: yup
06:28 PM _unreal_: ve7it, so I ordered all 50v caps as far as the eletrolytic one's go.
06:28 PM ve7it: they were not working very hard, but the motors did heat up my fingers when I tried to load them down
06:28 PM _unreal_: I couldnt find 35v at a reasonable price so I went 50v 2200uF/10uF caps
06:29 PM _unreal_: so plenty of drive power
06:29 PM _unreal_: I cant wait to see what you build with those motors
06:30 PM ve7it: 50V is good.. they will probably be a little larger... nothing is a tight fit
06:30 PM _unreal_: the caps are MUCH smaller then any in your photos
06:30 PM _unreal_: MUCH
06:30 PM _unreal_: the 2200uF are like half the diam
06:31 PM _unreal_: and the 10uF are like fat grains of rice
06:32 PM _unreal_: I kind of gave them the :S eye and checked with on my DMM/OSCOPE and they checked out fine
06:32 PM ve7it: the ones I used were from the junk box... old china love bought in bulk around 2000
06:32 PM _unreal_: ehhe
06:32 PM * _unreal_ remembers 2000 well
06:33 PM _unreal_: I had a lot of women after me then as well
06:33 PM ve7it: probably before lead free stuff got popular..... a lot of companies dumped their perfectly good inventory
06:33 PM _unreal_: YA I remember buying a lot of stuff back then
06:34 PM _unreal_: ;) back when i was young and beautiful
06:35 PM Tom_L: pfft
06:35 PM _unreal_: well I'll be back on in a few hours. I need to take a shower and start making dinner. tonight is pizza night and my daughter is VERY insistant we have pizza
06:35 PM _unreal_: Tom_L, I'll have you know I've earned my beer gut
06:36 PM _unreal_: so... sierra Nevada PALE ALE on you :PPPPPPPPP
06:36 PM _unreal_: ve7it, I milled the PCB's using my 0.5MM raps end mills
06:36 PM _unreal_: did a WONDERFUL job
06:36 PM _unreal_: nice and clean
06:37 PM _unreal_: raps=rasps
06:38 PM ve7it: https://drive.google.com/open?id=1uVYssbKokxEqO4gHkCT-nBwafwxSRKyC prototype of cpu module for load
06:38 PM _unreal_: https://www.amazon.com/gp/product/B00SMDOUPS/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
06:38 PM ve7it: funny how touch screens get so many finger prints on them
06:38 PM _unreal_: nice
06:39 PM _unreal_: ve7it, http://www.bgmicro.com/LCD1054.aspx
06:39 PM _unreal_: minus the CCFL driver and LCD interface
06:39 PM _unreal_: I have two of them. was given them by an other company that fucked up an order
06:40 PM _unreal_: ok I'm taking a shower now
06:40 PM _unreal_: but thats a touch screen I have, and the other link is the end mills I used to mill the pcbs
06:41 PM ve7it: yea... its nice to get the modules with the drivers attached... electronics lego... those end mills make me shiver... how many did you break?
06:44 PM jymmmm: Oh I want one... https://www.youtube.com/watch?v=k17KdZdIyEw&feature=youtu.be
06:45 PM jymmmm: $68 with 3 batteries
06:58 PM ve7it: that looks cool
06:59 PM _unreal_: ve7it, I have not broken any
06:59 PM _unreal_: infact I ran the gcode of yours un-edited
06:59 PM _unreal_: milled the traces wonderful
07:00 PM _unreal_: ve7it, THOSE bits as long as the feed rate is not exceeded for what they are capable of doing. will cut fiberglass all day FOR EVER
07:00 PM _unreal_: ok making pizza
07:00 PM _unreal_: bbiab
07:00 PM jymmmm: ve7it: Yeah it does, and I can terrorize the damn neighbors cats that keep shitting in my yard too
07:27 PM ve7it: jymmmm, nice quad... makes me want to order one... I like the checking gutters idea.. wonder if the app will run on an android tablet... I dont have a phone
08:37 PM jymmmm: ve7it: install it and find out
08:44 PM _unreal_: pizza was good
08:45 PM _unreal_: going to start soldering up what I can on the boards once I get the munchkin to bed
10:09 PM flyback: <flyback> terry jones died :(
10:09 PM flyback: <flyback> probably a good thing
10:09 PM flyback: <flyback> he had no language center left in his brain
10:57 PM veegee: Hmm what would be a good tool that's similar to a paint spray gun but that can be used with something as thick as ISO 68 way oil?
10:57 PM veegee: I pretty much want to spray the way oil to coat a large metal surface
10:57 PM veegee: I bought this thing: https://www.amazon.ca/Unknown-Rust-proofing-gun/dp/B01MTKVCTN but haven't tried it yet
11:00 PM veegee: Ok this is pretty much exactly what I want: https://www.youtube.com/watch?v=HcBm99kwQZ0 no idea what it's called though
11:01 PM veegee: oh never mind, he had the link in the description
11:29 PM Elmo40: i love it when a plan comes together...