#linuxcnc Logs
Apr 29 2019
#linuxcnc Calendar
01:10 AM Loetmichel: mornin. (YAAAAWN!)
01:14 AM Loetmichel: <- fills and starts the coffeemaker... maan, typical monday... needed a crowbar to rise out of bed this morning :-(
01:32 AM pink_vampire: the machine work fine for the lase few weeks, but now the limit switch on the Y axis give me this error
01:32 AM pink_vampire: "joint 1 on limit switch error"
01:33 AM pink_vampire: the machine move to the limit switch, the limit switch press, and then i 'm getting this error - no idea why
01:34 AM pink_vampire: maybe i need to debounce it?
01:42 AM XXCoder: was it homing when it went there?
01:48 AM pink_vampire: XXCoder: yes, it is happen in the homing
01:48 AM XXCoder: odd normally it backs off after home?
01:51 AM pink_vampire: i have no idea
01:52 AM XXCoder: still bit puzzled on why it errors out
01:53 AM XXCoder: limit switch is same switch as homing right?
01:53 AM pink_vampire: yes,
01:55 AM XXCoder: changed any configuration>?
01:55 AM pink_vampire: no nothing
01:56 AM XXCoder: strange
01:57 AM XXCoder: normally it errors like that, from what I understand, if switch is pressed since it should have stopped at soft limit before even touching switch.
01:57 AM XXCoder: but homing normally bypasses it as it dont know where it is anyway
01:57 AM XXCoder: of course i could be wrong
01:59 AM pink_vampire: the z axis move up........ press the switch... move down slow release the switch. the Y axis start moving...... press the switch ERROR
02:01 AM XXCoder: Z seems to do what its expected. very odd
02:11 AM pink_vampire: homing Y at 60mm/min
02:12 AM pink_vampire: same ERROR!!!
02:13 AM XXCoder: okay seems less likely it was "too deep" type then
02:13 AM XXCoder: maybe its just not backing off enough after
02:13 AM pink_vampire: but now it release the switch
02:14 AM XXCoder: so it backed off enough. that error is weird
02:15 AM pink_vampire: it might bounced
02:15 AM XXCoder: possibly. any flex to trigger and switch?
02:15 AM sensille: anyone bying endmills from aliexpress and can recommend a source? (for aluminum)
02:16 AM pink_vampire: get usa made
02:17 AM sensille: or german ones
02:17 AM sensille: so that's a no :)
02:17 AM XXCoder: guess not
02:19 AM pink_vampire: all the endmills i got from china are just JUNK
02:19 AM XXCoder: made from butteralloy?
02:19 AM pink_vampire: not sharp at all! brake wayyy to easy
02:19 AM sensille: iron + chinesium
02:21 AM pink_vampire: I can't wait to see an element discovery in china,
02:22 AM sensille: so 10 euro for a 3mm flat endmill
02:23 AM pink_vampire: don't do stupid stuff, and it will last very long time
02:23 AM sensille: that's the problem. i always do stupid stuff
02:23 AM XXCoder: expecially if you can reground tools
02:23 AM XXCoder: use cheap shit to learn
02:24 AM pink_vampire: like what?
02:25 AM sensille: like having a wrong z offset, or a path with a stepdown of 1mm instead of 0.1
02:25 AM sensille: or forgetting to spin up the spindle
02:25 AM pink_vampire: invest in a good E-stop
02:25 AM sensille: i'm quite creative in finding new ways to break endmills
02:25 AM pink_vampire: do dry runs
02:25 AM pink_vampire: lower the rapid feed!!!!!!!
02:25 AM sensille: "good"? foot switch?
02:26 AM XXCoder: I do inch higher dry run to confirm program, then "at setup z" dry run to see how it works well or not
02:26 AM XXCoder: then finally a part
02:26 AM sensille: or just "be more careful"
02:27 AM pink_vampire: dry run few inches above the material and lower the rapid feed will solve you 99% of the problems cause by human error
02:27 AM sensille: instead of dry runs i do the simulation in f360
02:28 AM sensille: problem with dry run is that some programs run 5 hours
02:28 AM XXCoder: dry run first tool, then walk in all tools afterwards
02:30 AM sensille: what tools do i need regrind endmills?
02:30 AM sensille: +to
02:31 AM XXCoder: a grinder I guess. i saw specialized grinder machine for puncher machine tools but behind that i dont know
02:32 AM pink_vampire: sensille: !!ALWAYS DO DRY RUN IF IT IS a NEW CODE!! !!ALWAYS START NEW CODE WITH LOW RAPIDS!!
02:32 AM XXCoder: i always do dry run even when i do minor edits to gcode.
02:33 AM sensille: so dry run with tool inserted, but high enough above the workpiece
02:33 AM pink_vampire: correct
02:33 AM sensille: rapids are about the same rate as cuts
02:33 AM XXCoder: if program is not proven yeah
02:34 AM XXCoder: if its proven I go stright to current setup dry run to see if I did setup xyz correctly as well as tools
02:34 AM pink_vampire: slow it down! and walk the tool!
02:34 AM pink_vampire: it is slow to make sure you ca hit the e-stop
02:36 AM sensille: so i should split the program into the separate paths, especially if some of them run for hours. watching the first minute is probably sufficient on each path
02:36 AM XXCoder: if you are... confient sure. but walk all tools in anyway if its first one, in case you missed configuring one tool.
02:37 AM sensille: each tool is a separate program anyway
02:38 AM pink_vampire: sensille: expensive tools make you better ans safer machinist - you will learn the right way very quick
02:39 AM sensille: forces me to make each error only once?
02:40 AM pink_vampire: lol yeah
02:41 AM XXCoder: i crashed collet chuck into fixture once
02:41 AM XXCoder: yeah not repeated it since
02:41 AM sensille: yeah, don't fire an employee after he made an expensive mistake
02:49 AM Deejay: moin
02:50 AM sensille: Deejay: "moin" sound like i can ask you for your preferred source for endmills in germany :)
02:51 AM Deejay: sorotec.de
02:51 AM Deejay: but i am only hobbyist
02:51 AM Deejay: and have no time right now, afk again, sry
02:51 AM sensille: thanks
02:52 AM XXCoder: LOLLLLL
02:53 AM XXCoder: one guy replied in vaccine related post, he said he should be fine without vaccines, since his kids is vaccined.
02:53 AM XXCoder: his mom called him out, saying that he was fully vaccined!
02:59 AM pink_vampire: good night
03:00 AM XXCoder: night pink
03:00 AM pink_vampire: i need some sleep
04:49 AM SpeedEvil: http://www.microbe.tv/twiv/twiv-544/ I found interesting.
04:49 AM SpeedEvil: Going into the development of immunity early in babies life, and how it's gained from the mother and how preterm birth affects it.
04:50 AM SpeedEvil: Fucking insane technology. utterly fucking insane.
04:53 AM SpeedEvil: You take every known human virus. Now you slice those virus sequences up into 70 amino acid long segments (partially overlapping) so you get ~1M or so total segments. Now you put those small protein segments on the coat of a phage, one each, a million different types. Then you expose it to a sample of patients blood, and filter out the cells. Then you put in an antibody to the phage with a magnet on it into the blood cells left
04:53 AM SpeedEvil: And then you sequence the phage genomes on the magnetised antibodied immune cells.
04:53 AM SpeedEvil: This lets you work out the bits that were sticking out that the antibodies in the blood bound to.
04:54 AM SpeedEvil: And therefore which viruses the baby had some degree of antibody based protection from.
05:28 AM Tom_L: morning
05:32 AM jthornton: morning
05:42 AM XXCoder: morning
05:52 AM pink_vampire: https://i.imgur.com/XMnOvHP.png
05:54 AM XXCoder: ehh the calibation sphere is reddish pibk ;)
05:54 AM pink_vampire: mmm
05:55 AM XXCoder: lol
05:56 AM Loetmichel: pink_vampire: whats that? a touch sensor holder that someone put some swarovsky crystals on?
05:57 AM Loetmichel: s/sensor/probe
05:57 AM pink_vampire: tool setter and a datum
05:57 AM Loetmichel: that red "ball" looks like the ruby tip of a touch probe
05:57 AM Loetmichel: datum?
05:59 AM pink_vampire: much nicer to use a sphere to probe round stuff in the spindle
06:03 AM Loetmichel: *MUHAHAH* just got 2 wuerth electronics sales people here. they asked where we buy our Dsub covers... i showed them a video... no more questions... -> https://www.youtube.com/watch?v=1Ym4Y9HEm4s (they both had sudden goosebumps for some reason, cant imagine why :-)
06:04 AM XXCoder: extremely safe
06:05 AM pink_vampire: now show us how you face cut the part with a fly cutter
06:06 AM Loetmichel: thats what i use to shave in the morning ;)
06:07 AM XXCoder: i'd be really really impressed if someone used fly cutter and HUGE 5 axis to shave
06:07 AM Loetmichel: (no, it was just a blunder i made and corrected on a dozen of those shells, made one side a bit to small to fit the Dsub)
06:08 AM XXCoder: ya I rememver when you talked about it a bit ago heh
06:08 AM Loetmichel: XXCoder: that would require an amount of trust in someone elses programming i cant imagine someone has :-)
06:08 AM XXCoder: trust someone else?
06:08 AM XXCoder: i wouldnt even trust my own, not to that
06:08 AM pink_vampire: XXCoder: you need to probe the surface fist before you shave
06:09 AM Loetmichel: but the looks on the sales peoples face when they saw that video: priceless ;)
06:09 AM XXCoder: lol even with probing
06:09 AM XXCoder: loet you need to get a clamp down plunger thingy
06:09 AM pink_vampire: it was g0 or g38 in the eye?
06:09 AM XXCoder: it can be screwed down anywhere
06:09 AM Loetmichel: i have
06:09 AM Loetmichel: was jsut to much work for a dozen of those
06:10 AM XXCoder: lol ok
06:10 AM Loetmichel: milling a seat in the wood block and then holding them by hand was easier
06:27 AM pink_vampire: why they make the paint brush sooo sharp at the end?
06:28 AM pink_vampire: https://i.imgur.com/zSEwyjW.png
06:29 AM XXCoder: Loetmichel: check it tout https://www.youtube.com/watch?v=12OSBJwogFc
06:29 AM XXCoder: pink_vampire: youre milling paint handle?
06:29 AM pink_vampire: Published on Nov 19, 2014
06:30 AM pink_vampire: XXCoder: yeah
06:30 AM XXCoder: that video? yeah. not sure why that glass not everywhere yet
06:30 AM pink_vampire: i mill everything
06:32 AM XXCoder: whats you doing with that paint brush?
06:33 AM pink_vampire: hammer it on oil stain on paint
10:43 AM enleth: any suggestions for accurate epoxy component dosage when the components are stored in 20l steel buckets?
10:43 AM enleth: the best I could come up with is a ladle
10:44 AM jdh: weight?
10:44 AM enleth: ok, actually the "accurate" part is taken care of by a scale on a mixing cup
10:45 AM enleth: but I need to be able to somehow transfer a relatively small amount of the stuff from the huge bucket to the cup
10:45 AM mozmck: ladle
10:46 AM enleth: obviously, the ladle is going to stay in the bucket, so I need to ziptie a magnet to the handle
10:46 AM gregcnc: https://www.expresscomposites.com/adtech-probuild-marine-3-1-calibrated-pump-for-gallon-system
10:46 AM enleth: so it sticks to the inside and doesn't sink
10:46 AM enleth: oh, that's nice
10:47 AM mozmck: I use a ladle with a post-cat lacquer in 5gal buckets, but I don't leave the ladle in. I just clean it off after each use.
10:47 AM gregcnc: that is the most common method i know of, and you should be able to find them in a range of size
10:48 AM mozmck: Another way is to pour into a smaller container - I have some graduated glass beakers I use.
10:48 AM enleth: mozmck: cleaning epoxy off of tools is a complete waste of solvent IMO
10:48 AM jdh: how accurate does it need to be
10:49 AM enleth: either you leave the tool in there forever (if it only ever had contact with just one component), or let it cure and keep using it (if it's for mixing), or you throw it away because it's cheaper than the solvent needed to clean it
10:49 AM mozmck: enleth: my lacquer is probably not as thick as the epoxy, but I would use something to wipe most of it out, then wipe it with a paper towel.
10:49 AM enleth: (if it's a brush or a roller)
10:50 AM enleth: jdh: not very, it's an epoxy paint, not a casting resin
10:52 AM enleth: very runny, even moreso with thinner, which is pretty much required
10:52 AM jdh: eyeball it. it will probably cure. eventually. maybe.
10:53 AM enleth: as I said, I have graduated mixing cups, but I have to somehow fill them in the first place
10:53 AM mozmck: Well, with my lacquer I think I just set the bucket on a table and poured it into the mixing cup - never had a problem with that. I used the ladle for some other transfers.
10:53 AM enleth: mozmck: was it a 20l/5.5gal bucket?
10:54 AM mozmck: yes
10:54 AM enleth: I very definitely do not want to risk spilling 20l of an epoxy component all over the place
10:54 AM enleth: the only way to clean something like that off the floor is to remove it with the floor
10:55 AM mozmck: Well, I've done a lot of that kind of thing and am comfortable with it. I turn the spout toward the top to get better control and let air in better.
10:56 AM enleth: did I mention this bucket does not have a spout?
10:56 AM mozmck: Hmm, I didn't see that if you did - that makes it a little different :-)
10:56 AM enleth: gregcnc: so I'll probably use a ladle today because that's what I have, but I'll try to buy one of those pumps and fit it to the bucket cover
10:57 AM enleth: I think I've seen replacement pumps like this for condiment containers
10:57 AM enleth: this stuff is about as runny as mustard, so it should work fine
10:59 AM gregcnc: i'm not sure if there are any compatibility issues with food grade supply
11:02 AM Joe_Hildreth: Quick question. I have installed lubuntu 18.04 in a virtual machine, downloaded kernel 4.18.16 source and the 4.18.16 Prempt_RT patch. Have patched the kernel source and am compiling the kernel as I type this. Once I install and boot this kernel up and make sure all is good, all I need to do then is download the current stable linuxcnc source and compile and install correct?
11:17 AM mozmck: correct
11:18 AM mozmck: Joe_Hildreth: why 4.18.16 instead of a currently maintained version like 4.19 or something?
11:19 AM Joe_Hildreth: Thank you mozmck. This is my first time ever trying this. I just picked something close to the kernel version that was on the machine. after updates it had 4.18.0.
11:20 AM mozmck: Ah, ok. Going with a newer kernel won't hurt - and might have beneficial fixes. What you are doing is fine too though.
11:20 AM Joe_Hildreth: I am still in the (very green) learning phase here. If this works, I will move to a newer kernel. Also, the only thing in config I turned on was Fully preempt kernel. Wasn't sure what else had to be turned on.
11:21 AM Joe_Hildreth: Thanks again mozmck. I appreciate it.
11:22 AM mozmck: No, but there are some things I turn off to help with latency. I usually turn off all the power management stuff I can, and cpu frequency scaling.
11:23 AM mozmck: You can disable most or all of that in the kernel boot parameters or in /proc I believe though.
11:24 AM Joe_Hildreth: Thanks. Made a note of it for the next go. I still have to get a successful compile and the kernel installed. That's why I am doing it in a VM. No heartache if i destroy the machine.
11:25 AM Joe_Hildreth: Is there some specific reading I can do to configure the kernel for LCNC?
11:26 AM mozmck: Not that I'm aware of. There is not much documentation on kernel config for PREEMPT-RT at all, and most of what I've found it old and obsolete.
11:28 AM Joe_Hildreth: OK, well I have been doing a series on LCNC on my YouTube channel. And I have been asked how to compile for other distrobutions. Escpecially since wheezy is EOL and no repositories are available.
11:28 AM mozmck: https://access.redhat.com/articles/65410
11:28 AM Joe_Hildreth: I thought I would try it myself and maybe pass the info along in another tutorial.
11:28 AM mozmck: Articles like that are useful
11:29 AM mozmck: Sounds great!
11:29 AM Joe_Hildreth: Thanks for the link. Looks like I will have time to read while the compile if happening. Thanks again for your help!
11:30 AM Joe_Hildreth: if = is
11:31 AM mozmck: No problem. I have compiled a lot of kernels and played with various options. Most of mine has been on ubuntu using the debain packaging stuff from them. That is a bit more complicated but helpful for building generic pacakges to distribute.
11:33 AM mozmck: pcw_home: has done a lot more than I though, so you can poke him for info as well ;-)
11:33 AM Joe_Hildreth: Speaking of distrobutions and packaging. With wheezy having no support, will stretch replace it as the live cd? It seems like it has been in testing for a while. Or do you know?
11:34 AM Joe_Hildreth: Awesome. As soon as I get my teeth cut a little, I am sure I will have other questions. Thank you for making yourself available.
11:34 AM mozmck: I think the main problem is getting a more recent kernel with RTAI built for it. As far as I know it works fine with preempt-rt if that's what you need.
11:35 AM Joe_Hildreth: Is one preferred over the other? Why? RTAI vs preempt-rt
11:35 AM mozmck: I personally don't care whether a distro has "support" or not - especially for a machine control.
11:36 AM Joe_Hildreth: Oh, so it is debian that does not have it available in their support channels then.
11:36 AM mozmck: RTAI generally gives better (sometimes a lot better) latency than preempt-rt
11:37 AM Joe_Hildreth: I can see that as an issure on PP driven systems, but does it affect the Mesa systems?
11:37 AM mozmck: Debian has quit making updates and bug fixes to wheezy, and they moved the package archives to a different URL.
11:37 AM Joe_Hildreth: So existing users can update the package archives and still get software ten?
11:37 AM Joe_Hildreth: then
11:38 AM mozmck: I think mainly PP systems benefit from RTAI. I don't know if anyone runs a PP with preempt-rt. But PP is often the first and is the cheapest way to get a machine running.
11:38 AM mozmck: yes on the package archive.
11:39 AM Joe_Hildreth: The tutorials I have been making are based on PP implementaion because of that. In you opinion, would preempt-rt run a pp driven system?
11:39 AM Joe_Hildreth: Or are there too many variables?
11:41 AM mozmck: All the computers I've used preempt-rt on have had too high latency to be usable with PP.
11:42 AM pcw_home: The range of PCs that have decent latency on Preempt-RT is much smaller than RTAI but its certainly possible to find a good one
11:42 AM mozmck: Looks like the package archive should be: http://archive.debian.org/debian/ for the wheezy main contrib non-free, wheezy-updates and security are not available.
11:43 AM pcw_home: Dont think Skunkworks will mind me posting this: http://www.electronicsam.com/images/KandT/testing/8300/Screenshot_2019-04-25_21-25-12.png
11:44 AM mozmck: hi pcw_home! That is some good latency there. I normally see 50+ us
11:44 AM pcw_home: I have nearly as good on a H97+G3258
11:44 AM mozmck: But I also run firefox with a video and several more glxgears as well
11:44 AM pcw_home: Yeah firefox no problem
11:45 AM pcw_home: depends on the CPU, no real idea why
11:45 AM mozmck: One problem we have is trying to use mini computers and inexpensive.
11:45 AM mozmck: Some are not too bad though.
11:45 AM pcw_home: Yes I have never seen really good latency on low power CPUs...
11:46 AM Joe_Hildreth: So this is a newbie question, but can you compile a RTAI kernel like a preempt-rt kernel?
11:46 AM pcw_home: Things like the D525 that had great RTAI latency are really bad on Preempt-RT
11:46 AM mozmck: Joe_Hildreth: https://github.com/LinuxCNC/linuxcnc/issues/576
11:46 AM pcw_home: much more trouble...
11:47 AM mozmck: yeah, the newer RTAI seems to be buggy or something as well.
11:48 AM mozmck: At one point I wanted to look into getting Xenomai working - I know machinekit did it. That should be just about as good as RTAI for latency.
11:48 AM pcw_home: will uspace work with Xenomai?
11:49 AM mozmck: I don't know - seems like I heard something about that....
11:49 AM Joe_Hildreth: thanks mozmck for the link.
11:49 AM mozmck: jepler would be the one to ask, but he seems to be hiding
11:49 AM mozmck: no problem!
12:40 PM Tom_L: what is the issue with ethernet not working with RTAI?
12:42 PM Tom_L: i realize it doesn't but don't know the 'why'
12:57 PM pcw_home: RTAI needs a real time driver for the Ethernet hardware, this seems to have been abandoned so only a few older cards work
01:12 PM PL7icnc: good evening
01:12 PM PL7icnc: gloops, Sir are you Here
01:13 PM PL7icnc: pcw_home, Thank you sir for giving the 7i92
01:14 PM PL7icnc: amazing improve to the parport mashines
01:14 PM PL7icnc: Mr teco as of the Forum are You sir Here
02:41 PM Elmo40: pcw_home, only a few older cards function in realtime? do all cards function but not in realtime?
02:49 PM andypugh: Ever see a job advert and think that you really ought to apply?
02:49 PM andypugh: https://www.linkedin.com/comm/jobs/view/1236865684?recommendedFlavor=HIDDEN_GEM&refId=05696b0e-018e-45be-90f5-25252e537a40&trk=eml-jymbii-organic-job-card&midToken=AQHhIh-GgkkDtg&trkEmail=eml-jobs_jymbii_digest-null-10-null-null-18ehvc%7Ejv2qunc0%7Ev2-null-jobs%7Eview&lipi=urn%3Ali%3Apage%3Aemail_jobs_jymbii_digest%3BeNG3g7tsRsiOR1ogz7jC9A%3D%3D
02:50 PM andypugh: Stupid URL. This works too. https://www.linkedin.com/comm/jobs/view/1236865684
03:01 PM JT-Shop: called a vet to get the cost of spaying a cat and they wanted to know if I had been there before... wonder why
03:01 PM andypugh: Maybe they think you might be a serial cat spayer?
03:02 PM methods_: the neuterer
03:02 PM JT-Shop: that would be a good thing around here
03:09 PM JT-Shop: ok the cat rodeo will be next Sunday night lol
03:12 PM methods_: so it's back in good health?
03:13 PM methods_: seem to remember it was having issues eating before right?
03:16 PM JT-Shop: yea I think being pregnant perhaps for the first time was the issue
03:17 PM JT-Shop: one day my wife said he sure is getting fat and I said that ain't fat that's cats
03:17 PM methods_: acute case of catitis
03:36 PM andypugh: I think kittens is a chronic condition
03:44 PM JT-Shop: we will be fixing that condition, interesting they can get pregnant right after birth of the litter
03:45 PM andypugh: Efficiency
03:51 PM JT-Shop: the lady at the vet hospital asked me the name of the cat and I replied Woody and she said you named a female cat Woody? I said yes it was living in the wood pile...
04:09 PM Deejay: gn8
04:48 PM Tom_L: andypugh you should apply :)
04:48 PM andypugh: I did. I fancy talking to them.
04:49 PM andypugh: But I don’t fit their requirements, I am baffled by C++
04:49 PM Tom_L: did you happen to mention lcnc?
04:49 PM andypugh: It’s in my CV
04:50 PM andypugh: And the application asked for your Github repository.
04:50 PM Tom_L: what do they consider 'old school'?
04:51 PM andypugh: I suspect that they would consider me old-school
04:51 PM mozmck: Probably anything not "cloud" based.
04:51 PM mozmck: andypugh: you should show up to the interview in your ner-a-car :-)
04:52 PM mozmck: or on it I should say
04:52 PM andypugh: Well, the company is called “CloudNC”
04:52 PM Tom_L: haha
04:52 PM Tom_L: show up on it dressed in the period...
04:52 PM Tom_L: then they'll know you're old school
04:52 PM mozmck: ask to see their line-shaft setup
04:53 PM andypugh: Offer to dress their belts.
04:53 PM Tom_L: and you'd like to see the steam engine powering it
04:54 PM mozmck: I have most of the stuff to make a setup like that. Maybe some day I'll find time...
04:54 PM Tom_L: i helped the shop teacher convert a belt lathe when i was in HS
04:55 PM mozmck: I have a pratt and whitney 3' planer, a steam engine, line shaft parts and pulleys...
04:55 PM andypugh: Neat! 1880s lathe: http://www.lathes.co.uk/unknown108/
04:55 PM mozmck: I had a belt driven southbend lathe I sold to a friend
04:56 PM andypugh: See anything interesting about it?
04:56 PM Tom_L: the drive belt is unique
04:56 PM Tom_L: i forget what they're called
04:56 PM andypugh: T-belt
04:56 PM Tom_L: and hooked to a stepper
04:56 PM Tom_L: or servo maybe
04:56 PM mozmck: Did they put vbelt pulleys over the flat belt ones?
04:56 PM andypugh: Indeed, it appears ot have an electronic leadscrew
04:57 PM Tom_L: what's the chain drive for on the front?
04:57 PM mozmck: Maybe instead of a rack and pinion?
04:57 PM Tom_L: it's got a screw
04:57 PM andypugh: I think so. We did the same with a morticer that my dad and I modified.
04:57 PM mozmck: Most lathes I've seen have both
04:58 PM mozmck: rack and pinion for general motion, screw for threading
04:59 PM mozmck: The handwheel on the right is interesting
05:02 PM andypugh: Not uncommon as a way to hand-drive the leadscrew
05:02 PM andypugh: http://www.lathes.co.uk/cromwell/index.html
05:02 PM andypugh: (Has one at each end)
05:03 PM mozmck: That's neat. I haven't seen that before.
05:03 PM mozmck: It seems like y'all have some more interesting lathes over there than I normally see here.
05:03 PM andypugh: it might actually be designed for back-driving the spindle by hand fo very high-lead grooves.
05:04 PM andypugh: It’s a fairly comprehensive web site: http://www.lathes.co.uk/index.html
05:05 PM Tom_L: you'd better be careful or you might own yet another lathe
05:06 PM Tom_L: iirc the lathe my bud has is a southbend
05:06 PM andypugh: I think I can resist almost all of them.
05:06 PM andypugh: (Holbrook Marquis would be hard to resist)
05:06 PM Tom_L: with a foot brake etc
05:44 PM pink_vampire: hi
05:56 PM _unreal_: LOW
05:57 PM pink_vampire: high
05:57 PM _unreal_: MEDIUM
05:58 PM pink_vampire: even Lower
05:58 PM _unreal_: empty...
05:58 PM _unreal_: brb getting an other beer
05:58 PM pink_vampire: LOL
06:15 PM Joe_Hildreth: I have compiled LCNC and run the tests. it has reported that 226 of 227 tests were successful with the oword-bug315-p2 failing. What does this mean? Can I use the software or do I need to fix this?
06:15 PM jthornton: dang it takes a long time to get a beer lol
06:17 PM Joe_Hildreth: After compiling and installing a preempt-rt kernel and compiling LCNC for the first time, I think I will enjoy some Makers #46 tonight and maybe chase it with a beer!
06:18 PM jthornton: nice
06:18 PM * jthornton wonders what "the tests" are...
06:20 PM Joe_Hildreth: After compiling lcnc, I sourced the rip-environment and run ... runtests. I have been following this page http://linuxcnc.org/docs/devel/html/code/building-linuxcnc.html
06:21 PM Joe_Hildreth: cd ..
06:21 PM Joe_Hildreth: oops. sorry bout that. thought I was in terminal. hahaha
06:22 PM jthornton: ah the run tests
06:22 PM jthornton: I've never done that, if it compiles without errors then I'm good to go
06:22 PM pink_vampire: https://i.imgur.com/kDxLLky.png what material is that?
06:24 PM jthornton: could be cast alum or pot metal or some other cast metal
06:24 PM jthornton: why?
06:24 PM Tom_L: pot metal
06:24 PM jthornton: is that your broken part?
06:24 PM Joe_Hildreth: Well, for giggles, thought I would run the latency test. Now everything is against me here. Running Lubuntu 18.04 on virtual machine. Compiled and installed preempt-rt kernel, and LCNC. So far the base thread latency is 2570607
06:24 PM jthornton: not even good for pots is it?
06:24 PM Tom_L: none i've seen
06:25 PM jthornton: you can't run on a virtual machine AFAIK
06:25 PM pink_vampire: jthornton: yes, this is the broken part
06:25 PM Tom_L: it's got the appearance of a ferrous metal instead of aluminum
06:26 PM jthornton: in the break area?
06:26 PM Tom_L: and on the machined end
06:26 PM pink_vampire: it is seams very brittle, and look like it is over molded on the steel pin
06:26 PM Tom_L: unless that's pressed in
06:26 PM Joe_Hildreth: I know, but wanted to see if all my work I put into compiling today actually worked. This is my frist go at it and I figured it wouldn't matter if I FUBARed a VM
06:26 PM Tom_L: the break area indicates some crap metal
06:27 PM Tom_L: you might be able to braze it
06:27 PM Joe_Hildreth: The gear housing broke on my band saw and it looked like grey cast iron. It was some pot metal. You may be able to braze it up with some alumiweld.
06:29 PM pink_vampire: I'm trying to upload a picture of the broken area
06:29 PM Tom_L: jthornton, i don't think he made it to the beer frig
06:29 PM pink_vampire: it is delaminat itself from the steel https://i.imgur.com/wKeR6W9.png
06:30 PM pink_vampire: it is fell very very soft, almost like MDF
06:31 PM Tom_L: it _could_ be aluminum but i doubt it
06:33 PM pink_vampire: it fracture is alot of places , like a very faint cracks
06:33 PM Tom_L: aluminum alloys have improved since then if it is
06:33 PM Tom_L: print a pink one
06:33 PM pink_vampire: it will brake
06:34 PM Tom_L: take the print and make a sand casting and cast one
06:34 PM Joe_Hildreth: When you compile LCNC, do you have to source the rip-environment everytime you start the machine?
06:35 PM Tom_L: can't remember that
06:36 PM pink_vampire: Tom_L: that is a nice idea
06:39 PM Tom_L: my kid has been using dremel printers at the vo'tech. they put out a very nice looking print
06:39 PM Tom_L: using the smaller nozzle
06:41 PM jthornton: yea running from rip you need to run rip-environment each time you open a new terminal
06:41 PM jthornton: dremel printers???
06:41 PM Tom_L: yes
06:41 PM Tom_L: it's on the cloud so he can start a print from anywhere
06:42 PM Tom_L: has a camera on it to monitor it as well
06:42 PM Tom_L: https://www.youtube.com/watch?v=J667JxXXzfE
06:42 PM * jthornton resists being part of the collective
06:42 PM Tom_L: i'm not sure which one they have out there
06:43 PM Tom_L: the prints come out very smooth though
06:43 PM jthornton: you getting any of that rain yet
06:43 PM Tom_L: no but it could break loose anytime now
06:43 PM Tom_L: it's lookin kinda greenish out
06:50 PM _unreal_: jthornton, I'm a full time single father...
06:50 PM _unreal_: so ya
06:50 PM jthornton: understand been there long time ago
06:50 PM _unreal_: my daughter is 10
06:51 PM _unreal_: jthornton, ya I'm one of the rar guys. the judge was VERY angry with my X wife
06:51 PM jthornton: my oldest daughter is 47
06:52 PM _unreal_: ! I just turned 40
06:52 PM jthornton: keep on trucking
06:52 PM _unreal_: :) should I give you my address ((:)
06:53 PM jthornton: the mother of my children filed with the state of Texas for more money but when I showed up at court with a shoe box of canceled checks the judge said why are you here lol
06:54 PM jthornton: anyway filing cost her a month with no money lol
06:54 PM _unreal_: heh ya... its in the document, "she will remove her stuff" my xwife LEFT with out taking anything
06:55 PM _unreal_: and published her X life on facebook
06:55 PM jthornton: dinner time I think
06:55 PM _unreal_: same here
06:55 PM _unreal_: I just got back from tickle torturing my daughter over what to have for diner
06:55 PM _unreal_: dinner
06:55 PM jthornton: lol
06:55 PM _unreal_: thinking chines
06:56 PM jthornton: at 10 they grow like weeds lol
06:56 PM _unreal_: living in south florida depending on where you liev everything is 3min away
06:56 PM jthornton: yea it's a narrow state
06:56 PM _unreal_: :S I'm fearing the BIG P time frame for my daughter
06:56 PM jthornton: we rode our bikes to Key West a couple of years ago
06:56 PM _unreal_: had to take her to get trainers few weeks ago
06:57 PM _unreal_: love the keys
06:57 PM _unreal_: took my duaghter down to isle marida few weeks ago
06:57 PM jthornton: yea it is complicated to raise daughters by yourself
06:57 PM jthornton: nice down there
06:57 PM _unreal_: ya I'm in boca
06:58 PM jthornton: I hear the dinner bell talk later
06:58 PM _unreal_: boca raton (mouth of rat)
06:58 PM _unreal_: laters
06:59 PM andypugh: pink_vampire: https://en.wikipedia.org/wiki/Zamak
07:00 PM pink_vampire: andypugh: is is weldable?
07:00 PM pink_vampire: it*
07:00 PM andypugh: No
07:01 PM andypugh: I would try epoxy
07:02 PM pink_vampire: do you think brass will be stronger than that?
07:02 PM andypugh: Yes
07:03 PM andypugh: Dried dung is sronger than that
07:03 PM andypugh: Google for Zamak repair.
07:08 PM pink_vampire: the hole is off center
07:12 PM pink_vampire: https://i.imgur.com/VE0LHqp.png
07:12 PM andypugh: Qulaity
07:12 PM _unreal_: nothing like dried dung
07:12 PM andypugh: It’s much smaller than I thought too
07:12 PM andypugh: 3D print a new one?
07:13 PM pink_vampire: this is the fork that change the gears in the milling head
07:13 PM _unreal_: OMG I thoght that was like enbeded in the straw what ever plate mat
07:13 PM pink_vampire: metal 3d printing?
07:13 PM _unreal_: matt
07:14 PM _unreal_: pink_vampire, I could make that in thicked epoxy with chopped fiber and you could NEVER EVER EVER break it