#linuxcnc Logs

Sep 25 2019

#linuxcnc Calendar

12:05 AM jesseg: well I got my tractor's tachometer in a vacuum jar :P
12:15 AM jesseg: (It was damp inside with water drops inside the glass... but it's crimped together so dissasembly is annoying, so I just vacuum distilled out the water :P)
02:55 AM miss0r2: morning
03:16 AM * Loetmichel just went brutalo...boss came down with a 6V4Ah AGM battery... 0V, inner resistance close to infinite... so i put on a 32V 6A lab supply... 10mA... 20 mA .. 50mA.. half an hour later: 2A... ok, change to the computer charger... i am wondering if those cells will recover ;)
05:10 AM Tom_L: morning
05:23 AM jthornton: morning
05:37 AM t4nk-freenode: good_slightly_after_noon
05:46 AM XXCoder: good super late night
05:46 AM XXCoder: jthornton: guy who was setting up huge machine come down with shingles. ouch. had to go back to home in calfornia
05:48 AM miss0r: wtf is shingles?
05:48 AM jdh: misery
05:48 AM XXCoder: fun version of chicken pox
05:48 AM miss0r: damn
05:49 AM XXCoder: its called that because sections of your skin look like.. well shingles
05:49 AM miss0r: both my kids have chickenpox at the moment - glory days...
05:49 AM XXCoder: didnt vaccine them?
05:49 AM miss0r: yeah.. I am not aware than you can even vaccine against that?
05:50 AM miss0r: 'round here it is accepted that all kids should have it before the age of 8
05:50 AM XXCoder: it protects you against future shingle too though still could get
05:50 AM miss0r: as in: you can only get it once in a lifetime, and getting it before that age it is only an annoyance and not dangerous
05:51 AM XXCoder: its taking a roll
05:52 AM XXCoder: https://www.webmd.com/children/what-is-chickenpox
05:55 AM miss0r: and don't worrie - i'm not one of those anti vax toons...
05:55 AM XXCoder: yeah link was for details :)
05:56 AM XXCoder: i knew once you didnt bring up mecury or austism
05:56 AM XXCoder: ;)
05:56 AM miss0r: haha yeah
05:57 AM miss0r: how can you tell if someone is a anti vaxxer, vegetarian, iphone enthusiast, crossfitter or any conbination of the mentioned?
05:57 AM miss0r: Don't worrie - they will tell you
05:58 AM XXCoder: mecury in vaccines, meat, android and body fat!!
06:00 AM miss0r: :D
06:00 AM XXCoder: whats also annoying is gmo stuff
06:00 AM miss0r: well.. it isn't exactly *unrtue*
06:00 AM XXCoder: i saw water certificed gmo free
06:00 AM miss0r: untrue*
06:00 AM miss0r: lol
06:00 AM XXCoder: I'd like to see someone gmo water
06:01 AM XXCoder: yeah gmo isnt all good, but its not evil boogeyman
06:01 AM jdh: shingles sucks. get vaccinated if able.
06:12 AM Deejay: moin
06:17 AM t4nk-freenode: moin gnate
07:20 AM jthornton: XXCoder, I hear shingles can be real bad
07:20 AM XXCoder: yeah
07:21 AM XXCoder: man I hope I dont get it lol
07:21 AM jthornton: is it contagious?
07:21 AM XXCoder: its essentally chiocken pox so yes
07:21 AM jthornton: yikes
07:24 AM XXCoder: yeah
07:38 AM SpeedEvil: https://www.precisionvaccinations.com/zoster-efficacy-study-zoe-70-reported-90-percent-protection-shingrix
07:38 AM SpeedEvil: On the above
07:38 AM SpeedEvil: Quite effective.
07:47 AM JT-Shop: so much for stoking the brush fire... it's raining now
08:23 AM miss0r: bleh... cutter died on me
08:34 AM JT-Shop: can someone go to spyderstore.com and tell me if you see my store or a note about the store moving
08:37 AM gregcnc: store
08:47 AM jthornton: thanks it must be on my end
08:49 AM cradek: JT-Shop2: I don't see anything weird, just a store
09:08 AM JT-Shop: well crap something is caching the old page
09:20 AM jthornton: geez I still get the old page at webhost4life and not the new one wtf
09:47 AM jym: YAY for blackouts.... NOT!
10:08 AM roycroft: better a blackout than a fire
10:09 AM roycroft: best to have neither, of course :)
10:35 AM jthornton: roycroft, I transferred spyderstore.com but I still get the old site at webhost4life, any ideas?
10:36 AM gregcnc: how long ago?
10:37 AM jthornton: 5pm yesterday I got the email that is was transferred
10:40 AM Loetmichel: *giggle* i should REALLY work on my lead foot... at least when streets are wet... just managed to inadvertedly pull four powerslides while cornering on my 12km commute home... that old girl still has some fire in her (BMW 525i E39)... :-)
10:41 AM gregcnc: domain name servers take some time to update
10:43 AM gregcnc: assuming you updated your dns to the new host
10:45 AM gregcnc: https://www.jlg.com/en/equipment/drop-deck-trailers/flatbed-trailers/7610-flatbed-trailer
10:46 AM gregcnc: the above type of trailer is excellent for machine moving
10:46 AM jym: jthornton: Set TTL to 5 minutes
10:47 AM jthornton: in what
10:47 AM gregcnc: often rented with scissor lifts to move them
10:48 AM jthornton: gregcnc, no I just followed the bouncing ball to transfer the domain
10:48 AM gregcnc: check your domain pointers
10:48 AM gregcnc: it may be automated, but it may not
10:49 AM gregcnc: I moved 2 domains last year. one was fast the other a day or so
10:49 AM jthornton: yea mesaus.com went without a hitch and took about a day
10:55 AM jthornton: stupid windblows dns was messing it up had to flush that down the toilet lol
10:55 AM CaptHindsight: I get the spyderstore, mebe it's your DNS
10:55 AM CaptHindsight: yeah
11:08 AM CaptHindsight: https://3dprint.com/253747/interview-biolife4d-is-the-first-us-company-to-bioprint-a-mini-heart-for-cardiotoxicity-testing/
11:11 AM jthornton: 2 web sites down 1 to go... the big one
11:11 AM CaptHindsight: https://en.wikipedia.org/wiki/Additive_manufacturing_file_format
11:21 AM CaptHindsight: vs https://en.wikipedia.org/wiki/3D_Manufacturing_Format
11:39 AM jesseg: Good Morning
11:41 AM jthornton: I'm hoping it gets better
12:17 PM CaptHindsight: https://www.automationtechnologiesinc.com/products-page/cnc-controller-box/ethercat-nema-23-cnc-kit/
12:20 PM CaptHindsight: https://www.automationtechnologiesinc.com/products-page/centroid-acorn-cnc-controller-kit-software/centroid-acorn-cnc-controller-kit-part-14455/
12:21 PM CaptHindsight: https://www.automationtechnologiesinc.com/products-page/featured-cnc-products/uccnc-control-software/
12:22 PM CaptHindsight: look at the GUI https://www.automationtechnologiesinc.com/wp-content/uploads/2014/06/UC100Software.jpg
12:55 PM andypugh: You have probably all heard of the electric dump truck in Switzerland that produces more electric than it consumes? I just found a web site claiming that it saves “50,000 tons of fuel annually”. Which rather suggests that some joirnalist can’t do arithmetic.
12:57 PM pcw_home: Does it only go downhill?
12:57 PM gregcnc: downhill loaded, up empty
12:57 PM pcw_home: Yeah
12:57 PM gregcnc: what do they do with the extra energy?
12:58 PM gregcnc: well math and all, journalists are word people
01:01 PM gregcnc: this author knew his limits, last sentence https://www.popularmechanics.com/technology/infrastructure/a28748306/worlds-largest-electric-vehicle-dump-truck/
01:01 PM gregcnc: oops "her"
01:04 PM CaptHindsight: andypugh: maybe it saves it in a bottle
01:06 PM CaptHindsight: so all garbage dumps should be located in valleys
01:06 PM CaptHindsight: garbage producers on hills
01:07 PM gregcnc: maybe they plug it in to the grid to discharge it?
01:08 PM andypugh: I imagine that it works too many hours to afford to leave it idle to discharge.
01:20 PM CaptHindsight: the energy has to go somewhere
01:21 PM CaptHindsight: it can't just store it forever
01:21 PM andypugh: They probably have a thermal dump.
01:22 PM jthornton: air conditioner and stereo
01:24 PM CaptHindsight: https://www.swissinfo.ch/eng/green-monster_largest-electric-vehicle-in-the-world-unveiled-at-swiss-quarry/44063822
01:25 PM andypugh: Which says 500 tons of diesel, over 10 years. Which seems like a miscalculation the other way.
01:26 PM andypugh: (500 tons of diesel is only 64 tanks full, and I suspect that they would fill a diesel one more than once a week)
01:26 PM andypugh: (tanks full per year, that is)
01:27 PM CaptHindsight: well you have to admit that there lots of numbers, decimal points and other math stuff
01:28 PM CaptHindsight: easy for one person to lose track of
01:29 PM CaptHindsight: https://www.greencarreports.com/news/1124478_world-s-largest-ev-never-has-to-be-recharged
01:30 PM CaptHindsight: 600 kilowatt-hour battery pack
01:30 PM jthornton: that kind of truck would not work in the typical open pit mines over here
01:30 PM CaptHindsight: Marking that trip around 20 times a day, Kuhn Schweitz says the eDumper produces 200 kwh of surplus energy every day, or 77 megawatt-hours a year. A typical dump truck uses between 11,000 and 22,000 gallons of diesel fuel a year. That saves up to 196 metric tons of global-warming carbon-dioxide gas a year.
01:31 PM CaptHindsight: top of the grade with 80 percent, then recovering battery charge to 88 percent on the way down
01:32 PM CaptHindsight: 8% of 600 kilowatt-hour battery pack
01:33 PM CaptHindsight: I'll round to 50kwh
01:34 PM CaptHindsight: 50kwh x 20 trips/day
01:34 PM CaptHindsight: ok so none of the numbers posted make any sense
02:02 PM andypugh: That has been my conclusion
02:04 PM sync: ah, that's quite the hack
02:04 PM sync: their quarry is higher than the rest
02:04 PM CaptHindsight: sometimes you can piece together a clearer picture from multiple stories
02:04 PM CaptHindsight: not in this case
02:04 PM andypugh: Yes, the headline statement is entirely reasonable and believable. It’s the numbers on fuel saved that don’t add up.
02:54 PM justan0theruser is now known as justanotheruser
03:19 PM JT-Shop: when you measure a fan like 40mm size is it the bolt circle you measure?
03:37 PM CaptHindsight: Screw hole spacings and fan sizes https://www.quietpc.com/support#question27
03:38 PM XXCoder: https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQ7XCu4f3c5RhUSNjCDGfkvKMMSitnzoIwsNgUJX0Rs-GW_MhWO-Q
03:40 PM rmu: andypugh: what kind of fuel savings would be realistic? it says 50000 ltr in 10 years, 5000 liters per year seems to be a reasonable amount for this truck?
03:55 PM andypugh: The article I found said 50,000 _tonnes_
03:55 PM andypugh: Per year
03:56 PM andypugh: https://www.autoblog.com/2019/08/26/edumper-electric-mining-truck-self-charging/ (But don’t accept their cookies to read the actual article, they have an evil recursive GDPR workaround thing)
03:59 PM CaptHindsight: https://www.phoronix.com/scan.php?page=news_item&px=Raspberry-Pi-Better-SPI
04:01 PM Deejay: gn8
04:05 PM rmu: ok 50000 tonnes per year seems a bit much...
04:06 PM miss0r: pink_vampire You around?
04:07 PM pink_vampire: yes
04:08 PM pink_vampire: miss0r: ^
04:08 PM miss0r: pink_vampire: I made some good progress on the shaper head today, if you want to see some photos?
04:08 PM JT-Shop: Tom_L: interesting that the OLD dryer had a reversible door and from the factory it is backwards for the dryer...
04:09 PM pink_vampire: I would love too
04:10 PM miss0r: https://imgur.com/a/v3LLr70
04:10 PM miss0r: there we go
04:10 PM miss0r: That cast iron block measures 180x200x100
04:10 PM miss0r: mm
04:12 PM pink_vampire: look amazing!
04:12 PM miss0r: and yes. U use the vacuum ALOT during cast iron machining :)
04:12 PM miss0r: Thanks
04:12 PM miss0r: U=I
04:12 PM miss0r: that is the bastplate/gearbox
04:13 PM miss0r: and now it is done being machined from one side. So, I still need to work on 4 additional sides
04:13 PM pink_vampire: why did you go with cast iron and not ductile iron?
04:14 PM roycroft: probably cheaper and more readily available
04:14 PM miss0r: this is ductile iron :)
04:14 PM miss0r: I just call it cast iron.
04:14 PM roycroft: others make a distinction :)
04:15 PM miss0r: yeah
04:15 PM roycroft: and there is a big difference
04:15 PM roycroft: drop a chunk of cast iron and it's likely to break
04:15 PM roycroft: drop a chunk of ductile iron and it's likely to dent
04:15 PM miss0r: not sure of the exact composition of this slab, as it is something I dug out of a dumpster(with permission) from a place that manufactures hydraulic valve blocks
04:15 PM pink_vampire: miss0r: what mill do you have?
04:15 PM miss0r: pink_vampire: Its a Deckel maho 500C
04:16 PM JT-Shop: the shaper head is going on your mill?
04:16 PM miss0r: that is the idea, yeah
04:17 PM miss0r: well... not permanently. The idea is to swap between that and the vertical head
04:17 PM JT-Shop: cool, can't wait to see that in action
04:18 PM miss0r: You and me both
04:39 PM pink_vampire: Deckel is a very good brand.
04:41 PM andypugh: Did you consider having a casting made?
04:41 PM andypugh: It’s reasnably cost-effective. Though probably doesn’t beat “free from a skip”
04:42 PM miss0r: andypugh: Around here you'd be hard pressed to find somewhere to have it cast
04:43 PM andypugh: I would have said the same thing about round here, until folk pointed me at foundries. Foundrymen tend to not be great at web sites.
04:45 PM miss0r: yeah.. I might stumble across one at some point
04:45 PM syyl: hey miss0r
04:45 PM syyl: glad you got the package
04:45 PM miss0r: yeah - it looks great
04:45 PM syyl: all good?
04:45 PM syyl: yay :)
04:46 PM miss0r: although, as I wrote you in PM earlier; for the future, consider getting some of those cheap'o bubblewrap envolopes (the ones with no paper)
04:47 PM miss0r: that being said, I *do* enjoy getting to read up on some old german news ;P
04:47 PM syyl: i am heartpressed to buy/use plastic packaging material
04:47 PM miss0r: syyl: https://imgur.com/a/v3LLr70 <- what am I currently working on
04:48 PM miss0r: I head'ya... I've head you can get some seaweed packaging that works quite the same ;D
04:48 PM syyl: head adaptor for a horizontal mill?
04:48 PM miss0r: its a shaper head for the mill. to be swapped back and forth with the horisontal head
04:48 PM syyl: ah, got it
04:48 PM andypugh: I have been doing sand casting at home this week.
04:49 PM miss0r: andypugh: Not iron, I suppose?
04:49 PM andypugh: No, Pewter, using the gas stove.
04:49 PM andypugh: Just needed a lump of about the right size.
04:49 PM andypugh: https://photos.app.goo.gl/jifTZxkeiL9Evzg59
04:50 PM andypugh: (You might have seen that yesterday, in fact)
04:50 PM miss0r: I have not
04:50 PM miss0r: What exactly did you cast? :S
04:51 PM andypugh: For brass / pewter / aluminium there is a lot to be said for having a tub of petrobond sand just lying around. It lasts a long time and is ready to use immediately.
04:51 PM sync: oh, andypugh since you mentioned it in gitter, do you have a source for inconel bar stock?
04:51 PM andypugh: miss0r: The sandy / lumpy / melted but at the bottom of the 116 year old tankard.
04:52 PM miss0r: why? :D
04:52 PM sync: because somebody broke the glass in it, most probably
04:52 PM andypugh: sync: ebay?
04:53 PM andypugh: Well, this one had had the glass broken, then it was sent for repair to a company that make spun sheet tankards, who cut off the old base and soldered on their own base, that then fell of in use.
04:53 PM andypugh: sync: https://www.ebay.co.uk/itm/Nickel-Alloy-625-Inconel-Rod-round-bar-2-4856-dia16-150mm-N06625-0-02-2-5Met/264332899348?hash=item3d8b77f414:m:msZcW5vVVhFg1Jyz4yMagzA
04:54 PM andypugh: So I decided to make an accurate replica of the original base, with a new glass. The original bases are about 6mm thick and take a lot of use.
04:55 PM sync: those are .... very uncompetitive prices
04:55 PM sync: I thought you might have had something different :)
04:57 PM andypugh: No, I have never had any need for inconel.
04:58 PM andypugh: And I imagine that all those that do have very deep pockets as they are spending governent money.
04:59 PM andypugh: miss0r: My old University has a collection of about 300 pewter tankards engraved with the names of all the encumbents of every union and club post since the founding of the college. https://www.imperialcollegeunion.org/sites/default/files/60th%20Birthday.jpg
05:00 PM andypugh: You can see them in the background of that photo. (And also me, drinking from one of them)
05:00 PM sync: well, I have a need for inconel
05:00 PM sync: any stainless is burning up in under a minute
05:01 PM andypugh: What’s the application?
05:02 PM sync: something that gets very hot and spins very fast
05:03 PM andypugh: A white dwarf star?
05:05 PM sync: no, an axial flow turbine
05:06 PM andypugh: That was my second guess
05:07 PM andypugh: Oh, by the way, after machining and soldering, the tankard looks like this, and I am drinking from it at this very moment (well, you need to test these things) https://photos.app.goo.gl/ZobPdwiBjH5PkdCYA
05:08 PM andypugh: It seems that you can gert small inconel bolts fairly cheaply, but those are probably too small.
05:13 PM sync: yeah
05:20 PM skunkworks: really need to get a ups on that computer..
05:24 PM JT-Shop: all the parts bags are packed so I think it's safe to update my inventory...
05:25 PM andypugh: Hmm, Stuart Stevenson can probably find Inconel.
05:25 PM Tom_L: i haven't heard of many shops running it around here
05:25 PM Tom_L: they probably do but you never see any scrap
05:26 PM Tom_L: worst we ever ran was tungsten
05:38 PM andypugh: sync: How big? is there any chance you could re-machine inconel engine valves?
06:05 PM Tom_itx is now known as Tom_L
06:13 PM sync: andypugh: unfortunately not really
06:13 PM sync: about 60-70mm iirc
06:23 PM andypugh: Hmm… https://www.autoblog.com/2016/04/26/ford-ecoblue-turbodiesel-engine-transit-van/
06:23 PM andypugh: Has an inconel turbine, apparently.
06:24 PM andypugh: Oh dear, another clueless joirnalist “ The new turbocharger apparently employs "rocket engine materials" for heat resistance; in this case it's a turbine wheel made from Inconel, an aerospace aluminum. “
06:25 PM andypugh: Same web site. Different journalist
06:26 PM sync: they all do
06:26 PM sync: it's some high nickel alloy on all modern turbos
06:27 PM andypugh: Yeah, but that article has a certain irony.
06:27 PM andypugh: On monday I am going to Pikes Peak, to test that engine, and that turbo.
06:29 PM Tom_L: fun
06:29 PM sync: why even bother with going to pikes peak? don't you have a high altitude chamber?
06:30 PM Tom_L: yeah but he likes to travel
06:30 PM andypugh: Yes, in Germany. But there are manouvers that it is hard to do on dyno rolls. Also we need to look at exhaust smoke, and we can’t do that in the chamber, as the exhaust is always on extract.
06:31 PM sync: hmm
06:32 PM sync: I don't think the chamber I used had exhaust extraction
06:34 PM sync: huh, smoke... can't you just look for opacity in the gas?
06:34 PM andypugh: (I actually don’t like travelling at all, I would prefer to never leave my workshop, really.)
06:35 PM sync: I think the chamber we used had a huge radial blower on the suction side and they just throttled the inlet plus some internal air recirculation thing to simulate airflow
06:35 PM sync: and to cool/heat the air
06:36 PM andypugh: sync: In theory, but it’s hard to tell the difference between HC and condensation (for example) when it’s an instrument rather than eyeballs.
06:36 PM andypugh: Pikes Peak isn’t actually ideal, as we are meant to test to 5200m
06:37 PM andypugh: Our chamber is completely sealed and the huge pump still struggles to hit the altitude.
06:38 PM sync: I think it did 4500m
06:38 PM sync: (it was built for a certain car on said mountain in the 80s)
06:40 PM andypugh: Who built that? Perhaps we should have used them rather than the ones we did use to build our brand-new 5200m facility. Latest from the chap who manages it “The temperature controller has broken, and the repairs to the seals to return to 5200m capability have made thigns worse"
06:43 PM sync: I think they engineered it in house
06:43 PM sync: at least I did not see a mfg very obviously
06:45 PM sync: I really need to get my gas metrology together and rig some dyno up
07:21 PM andypugh: Anyway, time to go.
07:46 PM _unreal_: FINALLY I have a usable PCB gcode
07:46 PM _unreal_: milling now
07:46 PM _unreal_: I cant FREAKING make the holes those. blows my mind.
07:46 PM _unreal_: those=though
08:12 PM _unreal_: any one know of a software that lets you edit GCODE like cad?
08:20 PM jdh: I use notepad++
08:20 PM _unreal_: not what I mean
08:21 PM _unreal_: What I mean is being able to edit a GCODE like a cad drawing
08:22 PM jdh: yeah. I know. imo, if it isn't easy enough to edit in as gcode, just regenerate the code to do what you really wanted.
08:32 PM _unreal_: I cant complain to much my PCB is perfect. I just wish I could add a DRILL plane :(
08:33 PM jdh: I generate gcode for each tool due to no tool changer
08:34 PM _unreal_: ! maybe I could ahhh hum
08:34 PM _unreal_: I think I have an idea now on how to COULD/COULD have done it
08:34 PM _unreal_: oh well time to make DIN for my daughter and I
08:34 PM _unreal_: I'm thinking hamburger and mac
08:35 PM _unreal_: then I need to go hand drill the 8 holes
08:35 PM _unreal_: Then I can solder on the second and ONLY other lead. and I can finally test/use this freaking VAC pump I built
08:35 PM _unreal_: purchased 4 MINI vac pumps can pull 25hg
08:36 PM _unreal_: at $5 each with brushless motors
08:36 PM _unreal_: if the vac pump ever goes bad I "may" still have nice motor to screw with
08:36 PM _unreal_: Got my desktop FULLY setup now
08:36 PM _unreal_: software wise
08:37 PM _unreal_: Now I have to do it all over again with that I5 system
08:37 PM _unreal_: sigh
10:55 PM _unreal_: Just tested my vacuum plate I made for the first time. SMALL but works good
10:56 PM _unreal_: I think I'm going to try a different approach. and use more rubber gasket AS the work surface.
10:56 PM _unreal_: may give me a better grip.