Jun 07 2019
01:21 AM Loetmichel: mornin'
01:27 AM Loetmichel: <- is really getting old and forgetful... just stood outside with the coworkers, smoking. discussion about old film projectors... Coworker: "there was a strange drive for the film, funny gears..." $me: yes, i know that thin, cant put a name to it though... [short google on the smartphone] Ah! Geneva drive!" Coworker: "MAAN is there something you DONT know?" $me: "obviously, or i wouldnt had
01:27 AM Loetmichel: to google right now!" :-)
03:34 AM Tom_L: morning
03:59 AM pingufan: hello, is somebody here?
04:06 AM pingufan: I am wondering about a very strange phenomen (AXIS 2.5.2). I use an NFS share to my file server into the subdir ~/linuxcnc/nc_files. Before, this was the server's /home/rainer/emc_jobs/ and everything ws fine over years. Now I had to move the path to a different volume on my server. I corrected the /etc/exports file on my server and also the entry in /etc/fstab on my linuxcnc machine. I CAN see all files and directories on the
04:06 AM pingufan: linuxcnc machine from bash (identical to before, so the nfs mount is correct), but when I open the file dialog in linuxcnc, the directory is empty!
04:06 AM pingufan: Any idea what is wrong?
04:08 AM pingufan: Btw.: When I open the directory nc_files from file browser on the desktop, I also can see all contents.
04:13 AM pingufan: Can somebody, please, help?
04:15 AM XXCoder: you sure its at same location?
04:15 AM pingufan: Well, I have looked into the ini of my cnc mill. There is the path /home/rainer/linuxcnc/nc_files written.
04:16 AM pingufan: Opening the file dialog and then going one step up in directory tree, I can see configs, my_funktions, nc_files
04:17 AM pingufan: This is exactly the directory tree
04:19 AM pingufan: I didn't change anything insine linuxcnc, it still looks at that tree. On desktop I have a link to nc_files. There I see all files and subdirs.
04:20 AM XXCoder: odd. dunno hope can figure or have someone answer wevenually
04:20 AM pingufan: I will try to navigate back to ~/ and then forward into that tree from axis.
04:21 AM XXCoder: yeah
04:21 AM XXCoder: is caps different on both?
04:22 AM XXCoder: like somedir and Somedir
04:22 AM pingufan: no, that is correct.
04:22 AM XXCoder: ok
04:23 AM pingufan: Going back in tree to /home/rainer/ I can see all files and also "Desktop" as dir. then I navigate back to linuxcnc and then nc_files, and it is empty.
04:24 AM XXCoder: what is file filters set to
04:24 AM XXCoder: try enter * on filename and hit enter
04:24 AM pingufan: When I open a file browser (of Ubuntu) and do the same, I see all files and shares.
04:30 AM pingufan: I created now an empty file right before nc_files (one step up in tree) as a marker. This file shows up, so I am in the right tree. So this for sure is an issue inside linuxcnc
04:30 AM XXCoder: did you check file filter like I asked?
04:31 AM pingufan: You mean upper/lowercase?
04:31 AM XXCoder: no, like *.nc or whatever
04:31 AM XXCoder: tend to be at bottom of file open dialog
04:32 AM pingufan: Set to "all readable files (*.ngc, *.png, ...)
04:32 AM XXCoder: is there any of those files in directory?
04:33 AM pingufan: Of course, all my former milling jobs are there (checked by using file explorer of Ubuntu), but linuxcnc shows an absolutely empty folder nc_files.
04:33 AM XXCoder: what is file extensions of those gcode programs?
04:34 AM pingufan: .ngc
04:34 AM XXCoder: swo it should have shown up. interesting
04:35 AM XXCoder: lets try something
04:36 AM pingufan: The absolute crazy thing I found out right now: When I do "Open last files", then choose one of the entries, this one opens !
04:36 AM XXCoder: right above file filter there is file name, just put * in that folder, then press enter
04:36 AM pingufan: So the file is (still) there.
04:36 AM XXCoder: it should now show all files
04:37 AM pingufan: no. Absolutely nothing.
04:38 AM XXCoder: strange indeed
04:39 AM pingufan: I definitely have RW access to that folder, I was able to create a new file /home/rainer/linuxcnc/huhu.ngc and this file shows up in linuxcnc. I also can blindly open a "latest file" which resides in nc_files.
04:39 AM pingufan: But the file browser shows absolutely nothing.
04:40 AM XXCoder: file open dialog? or seperate program for managing files?
04:41 AM pingufan: External filemanager shows everything correctly. From there I created the testing file huhu.ngc.
04:45 AM pingufan: File open dialog (of linuxcnc) can show that .ngc file. But when I move it into nc_files (next subdir) with external file manager, it does not appear inside linuxcnc.
04:47 AM jthornton: morning
04:48 AM XXCoder: hey jt
04:49 AM XXCoder: hes having some odd file open dialog issues
04:49 AM jthornton: with what?
04:50 AM XXCoder: files not even showing up
04:51 AM XXCoder: though process I used i confirmed that hes at right place, and applicable file filter is correct
04:51 AM XXCoder: but regular file browser shows files, and file open dialog does not.
04:52 AM jthornton: what file dialog?
04:52 AM XXCoder: linuxcnc file open dialog
04:52 AM XXCoder: ngc file loading to run
04:52 AM jthornton: which gui
04:52 AM pingufan: I double checked. With regular file browser I made a file copy from /home/rainer/linuxcnc/huhu.ngc -> /home/rainer/linuxcnc/nc_files/huhu.ngc
04:52 AM XXCoder: oh pingufan which gui you using?
04:53 AM pingufan: this is an older system some ubuntu 8 IIRC. Gnome desktop, I guess.
04:53 AM pingufan: I cannot use a newer software, it does not run on this hardware, btw.
04:54 AM jthornton: which linuxcnc gui are you using?
04:54 AM XXCoder: yeah theres few different ones
04:54 AM pingufan: AXIS 2.5.2
04:55 AM jthornton: axis you may have to shut down and restart it to see a new file
04:55 AM pingufan: I never had to do that before.
04:55 AM pingufan: I only had to close and re-open the open file dialog
04:57 AM jthornton: I'm out of guesses then
04:58 AM jthornton: oh reading back and this is a server issue
04:58 AM pingufan: All I changed is I moved the entire /home/rainer/ on the SERVER to /srv/rainer and then I corrected the exports file (on server) and /etc/fstab (on cnc mill). After rebooting the cnc-mill I get all files correctly appearing (again) in ~/linuxcnc/nc_files when I view with regular file browser, and I can also open/create files inside. But linuxcnc shows an empty nc_files.
05:00 AM jthornton: that is odd but above my pay grade
05:00 AM XXCoder: jthornton: just read that Elio says elio will start production in late fall
05:01 AM XXCoder: hope so!
05:01 AM jthornton: that would be nice
05:02 AM pingufan: Does Linuxcnc allow from axis to set a file path for nc_files? perhaps it gives it the necessary push to get into move again?
05:03 AM jthornton: you can set the file path in the ini file
05:04 AM pingufan: It is unbelievably that someone uses Ubuntu. Nothing is where it should be (compared to a full blown Suse
05:06 AM pingufan: How can I open a konsole in gnome?
05:06 AM jthornton: dunno what a konsole is
05:06 AM pingufan: A text terminal in a window.
05:06 AM jthornton: from the menu?
05:07 AM pingufan: in example, yes.
05:11 AM pingufan: I found the terminal meanwhile. Nightmare...
05:21 AM pingufan: I gave it now another try. I created a grand new mountpoint "/goliath/rainer" and made a symlink /goliath/rainer/emc2-jobs/ -> /home/rainer/linuxcnc/nc_files.
05:22 AM pingufan: The result: Linuxcnc correctly shows now in file open dialog /goliath/rainer/emc2jobs, but it is (still) empty. But in the "Terminal" I see all content.
05:23 AM XXCoder: foder is on server correct?
05:23 AM XXCoder: i kinda wonder if linuxcnc dile dialog cant see files on server
05:25 AM pingufan: Indeed. This is scarying.
05:25 AM XXCoder: i got no way to test it
05:26 AM XXCoder: my linuxcnc pc is in storage along with cnc router
05:26 AM pingufan: And more, it worked before over at least 4 years without any issue.
05:26 AM XXCoder: any changes? updates?
05:26 AM pingufan: No!
05:26 AM jthornton: yea something had to have changed
05:26 AM pingufan: Absolutely nothing changed.
05:27 AM pingufan: I turned the cnc-mill on after long time and saw that nothing is showing up. Then I remembered that I have moved the directory on the server and edited /etc/fstab to find it again. This is the only change I made.
05:29 AM pingufan: And the cnc mill _can_ see now the files from its Ubuntu file manager again. Only linuxcnc doesn't show them.
05:30 AM pingufan: And the path is for sure absolutely correct, even my new setup workstation (openSuSE Leap 15.0) correctly shows all files.
05:31 AM XXCoder: nc path setting is in ini file right? is there any other nc files pathway settings besides that?
05:32 AM pingufan: The setup is "Meine-Fraese", so the init is "Meine-Fraese.ini" ?
05:32 AM Tom_L: jthornton, gettin any rain?
05:32 AM XXCoder: Tom_L: it supposed to rain but failed. pretty serious drought here
05:32 AM XXCoder: sucks
05:33 AM XXCoder: i'd guess so, but since file open already goes to correct directory it dont matter I think
05:33 AM Tom_L: looks like the clouds are moving the other way
05:33 AM Tom_L: generally they cross me before jt
05:33 AM jthornton: a little rain yes
05:34 AM pingufan: I see there a line "PROGRAM_PREFIX = /home/rainer/linuxcnc/nc_files" So it seems to be correct.
05:35 AM Tom_L: what about PROGRAM_EXTENSION =
05:36 AM Tom_L: under [FILTER]
05:38 AM pingufan: There are two lines of it: One for .png,.gif,.jpg Greyscale Depth Image and one with .py Python Script.
05:39 AM pingufan: I changed nothing inside within at least 3 years!
05:40 AM Tom_L: test the drive integrity
05:40 AM pingufan: I guess that this lines should have no effect at all when I manually set "Show all files" in open dialog?
05:45 AM pingufan: When I manually enter the filename in open-file dialog, the file is opened.
05:45 AM pingufan: But the browsing window is always empty.
05:52 AM pingufan: Dies AXIS 2.5.2 allow some kind of Drag&Drop from external file explorer, or how can I easily get a NGC loaded?
05:52 AM XXCoder: try and see?
05:53 AM jthornton: no axis does not have drag and drop
05:53 AM pingufan: The point is: I don't see any effect
05:54 AM pingufan: Entering "rename file" to be able to do a "copy" of the filename and then doing a "paste" in AXIS file open dialog is a bit clumpsy.
05:54 AM XXCoder: yeah
05:55 AM XXCoder: im surpised that even *.* dont work
06:12 AM pingufan: This is a nightmare. Cannot use my CNC because of such crap.
06:13 AM pingufan: My CNC has only a very small CF-CARD as "HDD". There's no room for all CNC jobs on it (and it would be written to death if I permanently do writes. Therefore all job files are on the server.
06:14 AM XXCoder: my linuxcnc pc uses 8 gb ssd
06:15 AM XXCoder: my retro mini gaming thing has much bigger storage lol
06:15 AM pingufan: This is the same (in fact)
06:16 AM pingufan: There was a .directory file in this share (I have set a different color to this directory). I deleted it, but this changed nothing.
06:17 AM XXCoder: may have to ask in forum
06:17 AM pingufan: where does this crazy Ubuntu set the locale?
06:18 AM jthornton: you might try google to find info about an old OS
06:20 AM pingufan: The server is (STILL!) running iso-8859-1. The cnc-mill (as always) runs UTF8. But this cannot be a reason, then only some filenames show up wrongly. (Therefore I don't use German Umlauts). But this is unchanged, so I see no reason why file browsing has a problem now.
06:21 AM pingufan: I don't rish to set it to some different locale. If axis is crappy written, it could have malfunctions.
06:21 AM pingufan: ... risk ...
06:21 AM jthornton: if you have been using axis for 3 years and never updated it ain't an axis problem
06:22 AM pingufan: Absolutely my idea, too
06:27 AM pingufan: And this is also the same as before (except of paths, but same options as before) in /etc/fstab goliath:/srv/rainer /goliath/rainer nfs rw,user,auto,exec 0 0
06:42 AM pingufan: I made now a local ~/linuxcnc/nc_files and copied some files from NFS-mount into it. THIS WORKS.
06:44 AM jthornton: I'm glad you got it to work what ever that is
06:45 AM pingufan: Far away from useful
06:57 AM pingufan: jthornton: I assume this is a very strange bug which popped out with changing the path.
06:57 AM pingufan: So the major question will be: Who will fix this in such an old system...
06:57 AM pingufan: It exceeds my skills
06:58 AM jthornton: there is no work being done on unsupported versions
06:58 AM pingufan: Exactly.
06:58 AM jthornton: and I have no idea why changing a path would cause your symptoms
07:00 AM jthornton: why not change it back to what it was before?
07:02 AM pingufan: I actually have a vague idea... Imagine one hardcoded(!) /<homedir>/linuxcnc/ncfiles somewhere in the file open dialog. (No idea if this is possible at all.). Then the system finds a mounted /home/rainer/ (from server) when it is mounted locally, but when it follows a link to somewhere else, it fails.
07:02 AM pingufan: Now the mountpoint is not /home/rainer any more, it is /srv/rainer !
07:02 AM jthornton: that does sound plausible
07:03 AM pingufan: Do you know? Can I make a symlink on the server (back to /home/rainer) and export that symlink?
07:04 AM jthornton: I know nothing about symlinks and axis is a mix of python, which I know and tcl which I have no idea about
07:05 AM jthornton: or Tkinter actually
07:06 AM pingufan: I guess you are using a newer linuxcnc?
07:07 AM jthornton: yea, I only have one machine left that uses axis the rest us QtPyVCP
07:10 AM jthornton: f = root_window.tk.call("tk_getOpenFile", "-initialdir", open_directory,"-filetypes", types)
07:10 AM pingufan: I found out a bit more right now: The open file dialog even cannot display the root of the mountpoint. (/goliath/rainer/), where emc2jobs i a subdir of.
07:10 AM jthornton: open_directory = inifile.find("DISPLAY", "PROGRAM_PREFIX") or open_directory
07:13 AM pingufan: Hereby /goliath can be entered (755 root:root) and I can see then /goliath/rainer (755 rainer:users)
07:14 AM pingufan: But when entering /goliath/rainer/ I see nothing any more.
07:15 AM pingufan: From Ubuntu File Explorer, I can see all files and also enter emc2jobs (777 rauner:users) where all projects are stored.
07:16 AM pingufan: So it seems that the open file dialog of AXIS has a massive problem with /goliath/rainer in general.
07:19 AM jthornton: have you tried putting the full path in the ini file?
07:21 AM pingufan: Yes. I made a copy of the original PROGRAM_PREFIX line, placed a # in front of the first one, then edited the path.
07:26 AM pingufan: But I try again, I possibly had a typo.
07:26 AM pingufan: Looks now like this : PROGRAM_PREFIX = /goliath/rainer/emc2-jobs
07:26 AM pingufan: This is where the NFS mount is.
07:26 AM pingufan: No. it is empty.
07:26 AM jthornton: https://forum.linuxcnc.org/38-general-linuxcnc-questions/27022-shortcut-to-windows-shared-folder-possible
07:31 AM pingufan: Well, what I read, this AXIS is really boguous. then. When replacing samba with nfs, I get exactly what I experience as problem description. What I will try now is putting the nfs share into nc_files as a subdir (symlink) ad that guy did
07:36 AM pingufan: No, doesn't work, too. I see the symlink, but when I try to enter it (I CAN enter it), I see nothing any more.
07:51 AM pingufan: I give up for today.
07:53 AM JT-Shop: it is not an axis problem, it is a problem with 10 year old Tkinter file chooser not working after you change your network
09:31 AM Deejay: hi
09:35 AM jthornton: hi
10:04 AM Loetmichel: *hihi* i just sneezed on the ground level workshop... wireless phone rings... Coworker: "BLESS YOU!" I am on the toilet in the First floor and heard it!"
10:07 AM rtagro: does wheezey do payed lts ?
10:13 AM cerna: Hi, are there aby notes about the problém od supporting five-ish RTAI?
10:15 AM cerna: Sorry, autocorrect.
10:17 AM JT-Shop: I don't think RTAI works past 4 somthing
10:18 AM cerna: Yeah, I know. I am interested in post-mortem od why more.
10:21 AM mozmck_lp: he cerna, your question is unclear? What does five-ish RTAI mean?
10:23 AM cerna: mozmck_lp, RTAI version 5
10:24 AM cerna: Up to Linux 4.14.111
10:25 AM mozmck_lp: I think andypugh compiled RTAI 5 with a newer kernel but could not get it to work.
10:33 AM JT-Shop: capthindsight did something with the rt preempt to get super low latency
10:35 AM cerna: Well, I know about people getting 6us with CPU isolation with rt-preempt.
10:36 AM cerna: Any idea about the andypugh problems?
10:41 AM mozmck: I think the stuff capthindsight did was very specific to the CPU they are using - not something generic at all.
10:41 AM mozmck: I think andypugh was getting lockups when he tried to run the realtime stuff in linuxcnc
10:56 AM cerna: Do you know how super low capthindsight got?
10:59 AM JT-Shop: cerna: look at yesterday's log
11:02 AM cerna: Thanks, will investigate.
11:18 AM pcw_home: Yeah, Preempt-RT performance seems really hardware dependent, I can get better than capthindsight's latency without any isolcpus
11:49 AM pcw_home: (on some hardware)
11:51 AM jthornton: what hardware works the best with preempt rt?
11:51 AM pcw_home: Faster Intel chips seem the best
11:52 AM pcw_home: but I dont have much experience with newer AMD stuff
11:52 AM jthornton: which ones are the faster chips?
11:58 AM jthornton: this pc is a Intel(R) Core(TM) i5-7600K CPU @ 3.80GHz
11:59 AM cerna: I heard that the older J1900 are fast because od two L2s.
11:59 AM pcw_home: G32XX I3s I5s I7s
11:59 AM jthornton: on a Gigabyte B250M-DS3H-CF
11:59 AM pcw_home: how does it do?
12:00 PM jthornton: starts out mid 20's
12:00 PM jthornton: with --nobase
12:01 PM jthornton: just looked under the hood and it has a M.2 WD Blue main drive
12:02 PM jthornton: memory is a couple of 8GiB DIMM Synchronous 2400 MHz (0.4 ns)
12:02 PM jthornton: something just bumped it up to the 40's
12:03 PM pcw_home: here's an older I5: reeby.mesanet.com/8300-4.18.png (only 5 minutes though)
12:03 PM pcw_home: http://freeby.mesanet.com/8300-4.18.png
12:03 PM jthornton: wow
12:04 PM pcw_home: idle=poll, governor=performance mode etc etc
12:06 PM pcw_home: G3258 on a older kernel: http://freeby.mesanet.com/h97-g3258-preemt-rt.png
12:06 PM jthornton: ah ha mine was set on powersave!
12:09 PM net|: https://www.artofmanliness.com/articles/wwii-slang/
12:09 PM pcw_home: scrubbly old laptop: http://freeby.mesanet.com/e6420.png
12:10 PM Tom_L: how come my numbers never look that good :)
12:13 PM pcw_home: slow CPU?
12:15 PM pcw_home: In general, Preempt-RT doesn't like slow CPUs so all those Atom CPUs (D525 etc) that worked so well with RTAI are dogs with Preempt-RT
12:16 PM jthornton: I assume you need to reboot after setting the governor?
12:16 PM pcw_home: Not sure I think I set in in the kernel config
12:17 PM jthornton: ah I'll have to look for that then
12:17 PM pcw_home: you _should_ be able to set it dynamically
12:18 PM pcw_home: in this machine is just have "idle=poll processor.max_cstate=1" in the kernel command line
12:19 PM jthornton: ok looking at that, I see it in /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
12:19 PM pcw_home: ( cat /proc/cmdline to check )
12:19 PM mozmck: that max_cstate=1 is necessary in J1900 to keep from occasional lockups
12:19 PM pcw_home: yeah video power down issues I think
12:19 PM jthornton: BOOT_IMAGE=/boot/vmlinuz-4.19.1-rt3 root=UUID=578e3fc5-dcd2-47f7-ad50-f0ef6f7bdf85 ro quiet splash vt.handoff=7
12:20 PM mozmck: pcw_home: that's actually processor power down issues from what I read. For the video stuff I do i915.rc6=0 or something like that.
12:21 PM mozmck: the cstate bug affects baytrail and maybe another line of cpus
12:21 PM pcw_home: yeah Ive probably forgotten, I do more testing on faster machines now
12:22 PM mozmck: that would be nice :-)
12:31 PM CaptHindsight: preempt_rt kerenl patches for lower latency https://github.com/NTULINUX/aggressive_kernel_patches
12:32 PM CaptHindsight: still a work in progress and applies to AMD
12:32 PM CaptHindsight: Ryzen
12:33 PM CaptHindsight: he has the base thread jitter down from ~200K to under 20K now
12:34 PM CaptHindsight: we rarely touch anything Intel since they are such dirtbags
12:39 PM CaptHindsight: the preempt_rt work is just out of curiosity since we'd be using servo threads and FPGA's
12:45 PM jthornton: pcw_home: in the power managment cpu freq scaling I see performance is default but also checked are all the other governors do you uncheck them?
12:48 PM pcw_home: I dont think I did
12:48 PM CaptHindsight: jthornton: in BIOS you want to turn off any frequency scaling
12:49 PM mozmck: A lot of BIOS I've seen don't have any option for that.
12:49 PM CaptHindsight: yeah, cheapskate vendors
12:49 PM CaptHindsight: BIOS's tend to be broken on cheap hardware
12:49 PM mozmck: I usually disable frequency scaling altogether in the kernel config, but you can do the same in the kernel commandline by forcing performance I believe.
12:50 PM mozmck: CaptHindsight: yeah, or at least have very few options.
12:51 PM CaptHindsight: on HP, Dell and other corporate systems they do so to keep calls to the IT dept lower from people messing with settings
12:52 PM CaptHindsight: we got some off lease HP system once, i think the BIOS only let you set the time
12:54 PM jthornton: I check and see if that is in the BIOS or not
12:58 PM CaptHindsight: https://www.asus.com/us/Motherboards/C8HM70IHDMI/specifications/
12:58 PM CaptHindsight: got some of these in afew minutes ago to just play with for ~$35ea
01:02 PM jthornton: made a lucky guess and got performance now
01:09 PM jthornton: my latency is worse now lol
01:22 PM CaptHindsight: https://www.ebay.com/itm/Mounts-Nema23-57-Stepper-Motor-Bracket-Support-Clamp-Aluminium-Alloy-Mounting/323807374256
01:22 PM CaptHindsight: they found a way of making crappy supports from t-slot
01:36 PM perry_j1987: o/
01:38 PM perry_j1987: https://www.practicalmachinist.com/vb/attachments/f19/162433d1454770349-power-hacksaw-pics-factory-home-made-lets-see-them-img_20160104_221256438.jpg these things work very well
01:39 PM perry_j1987: cut down full stick down to chunks in no time
01:41 PM SpeedEvil: :)
01:41 PM * SpeedEvil idly wonders how fast you can overclock a standard manual hacksaw blade.
01:42 PM SpeedEvil: 200 strokes a minute?
01:44 PM perry_j1987: there's two speeds
01:44 PM perry_j1987: one is acceptable the other is scary
01:44 PM perry_j1987: lol
01:52 PM CaptHindsight: what do you use for cutting bearing rails ~1" (25mm)?
01:53 PM CaptHindsight: band saw, abrasive chop saw, angle grinder, liquid nitrogen and a hammer?
01:57 PM jthornton: dang got a rooster egg, I've not seen one of them since they were just utes
02:16 PM gregcnc: I want to build a linuxcnc bandsaw....when i have the room
02:17 PM gregcnc: it could be done with some tiny micro, but I don't know jack about that
02:19 PM perry_j1987: gregcnc simple grbl shield would handle that
02:20 PM gregcnc: know nothing about gerbils
02:21 PM perry_j1987: here yo ugo heh https://www.thingiverse.com/thing:3658148
02:21 PM perry_j1987: good for 12" round stock :P
02:23 PM gregcnc: Or if i could find a Roll-in saw
02:26 PM CaptHindsight: gregcnc: misumi is local but they don't offer will call
02:27 PM gregcnc: really? I have to order some oddball taps from them
02:27 PM CaptHindsight: just got off the phone with them
02:27 PM CaptHindsight: tech support answers right away
02:28 PM gregcnc: they have neat stuff, and so metric
02:28 PM CaptHindsight: bu they said they have no parts counter, shipping only
02:29 PM gregcnc: these taps would be coming from japan probably
02:29 PM CaptHindsight: Schaumburg to Palatine to here for UPS
02:30 PM CaptHindsight: UPS comes by here 12- 1pm, fedex ground ~10:15am
02:31 PM CaptHindsight: if you order misumi before 7pm it ships same day, if it's in stock
02:32 PM gregcnc: oh thats' nice. McMaster is like 6 or 6:30
02:32 PM CaptHindsight: and the will call is only 1 hour drive
02:33 PM CaptHindsight: they were trying a 24 hour will call a couple of years ago
02:33 PM CaptHindsight: not sure if they kept it
02:35 PM gregcnc: might be worth the drive in the evening, but not during the day
02:38 PM perry_j1987: gregcnc you guys watch this old tony ?
02:39 PM gregcnc: occasionally. stuff like edge precision is more interesting
02:40 PM SpeedEvil: gregcnc: bandsaw with auto-changer?
02:41 PM perry_j1987: he's got a very entertaining format
02:41 PM SpeedEvil: 1/4" teeny blade for the corners, 1" for the straight lines.
02:41 PM gregcnc: bandsaw with auto feed programable length
02:42 PM * SpeedEvil imagines a bandsaw that takes 100 feet blades and does not weld them and just re-threads a lot.
02:42 PM Deejay: gn8
02:43 PM gregcnc: this is my brand of workshop comedyhttps://www.youtube.com/user/badobsessionmsport
02:47 PM JT-Shop: geez mesaus.com just shows a blank page!
02:47 PM gregcnc: oops
02:49 PM JT-Shop: I'll be glad when I'm away from webhost4life and on dreamhosters
03:00 PM gambakufu: I dunno... that name seems kinda permanent.
03:08 PM CaptHindsight: how many detents should a new fixed end bearing have? 3-5, 2, 200, 0?
03:08 PM gregcnc: lol
03:09 PM CaptHindsight: pulled two out of a box from Automation technologies...
03:09 PM gregcnc: wasn't clear in the description
03:09 PM gregcnc: ?
03:09 PM CaptHindsight: one has 5 the other 3, and they are ball bearings
03:10 PM CaptHindsight: if i mic the blocks i wonder how square they even are, well they are at least black and made of metal
03:25 PM JT-Shop: detents on a ball bearing?
03:29 PM perry_j1987: about to drill hole in the spindle mount so i can screw in this indicator arm
03:29 PM perry_j1987: everything is aluminum as far as the eye can see no place for magbase heh
03:42 PM perry_j1987: ah so nice having that mounted nicely
03:47 PM -!- #linuxcnc mode set to +v by ChanServ
03:48 PM cerna: CaptHindsight: Have you tried cokernel (xenomai) in your tryouts?
03:55 PM _unreal_: hello trying to get something compiled and running for fedora29
03:55 PM _unreal_: I tried in the fedora room and there just being assholes
03:55 PM _unreal_: Trying to get this compiled https://github.com/camrein/EzGraver
03:55 PM _unreal_: I believe I have compiled with no errors. but I'm getting an execution error
03:55 PM _unreal_: I try to execute the executable and I get this error ./EzGraverCli: error while loading shared libraries: libEzGraverCore.so.1: cannot open shared object file: No such file or directory
04:04 PM jdh: try make install first?
04:26 PM andypugh: Quite a fun, if not inexpensive project. Turning this: https://photos.app.goo.gl/jWDnGac8vEohQuWaA
04:27 PM andypugh: Into this: https://photos.app.goo.gl/DFnNa2aNW9dVmJVz9
04:28 PM XXCoder: fancy
04:28 PM andypugh: Now I can turn my living room back into a living room. Well, I could. It’s unlikely that I will.
04:29 PM andypugh: I have ended up wth a bike that would cost about £2000 to buy. And I only paid slightly more than that for the parts :-)
04:29 PM andypugh: (That’s not quite true, I think I am probably £1200 in)
04:42 PM JT-Shop: CF frame?
04:44 PM andypugh: CF frame, bars, seat frame and cranks
04:44 PM _unreal_: make install gave errors
04:44 PM _unreal_: make works
04:44 PM _unreal_: but then its missing files
04:45 PM andypugh: I was going to do carbon wheels as well, but balked at the cost of even generic ones from China
04:45 PM _unreal_: cant find files when I try to execute
04:45 PM _unreal_: andypugh, building what from carbon?
04:45 PM JT-Shop: what does it weigh with air in the tyres?
04:46 PM _unreal_: oh a bike
04:46 PM _unreal_: and are you using heavy air or light air :)
04:47 PM andypugh: _unreal_: You might be joking, but filling the tyres with helium rather than air would save 16g
04:48 PM * SpeedEvil wishes you could get Xe cheaply.
04:48 PM andypugh: (and I _do_ mean mass not weight)
04:48 PM SpeedEvil: Or even Kr.
04:48 PM XXCoder: heh not surprised. I know bicyclers want to shave grams off. 16g is a lot.
04:48 PM XXCoder: just remove seat, thats whole grams there ;)
04:49 PM SpeedEvil: Or don't eat a bannana two days before.
04:50 PM XXCoder: I wonder if its now possible with current material science to make bicycle frame with most of frame removed
04:50 PM XXCoder: like only one side for rear wheel vs 2, etc
04:51 PM andypugh: That was done back in the 8os
04:52 PM XXCoder: if we had ability to do zero friction I'd design frame to rest on rear wheel and have thin but very strong arm down to wheel to keep it aligned to frame
04:52 PM andypugh: Google for “lotus type 108”
04:53 PM XXCoder: dang now thats backbreaker
04:53 PM SpeedEvil: if you could do zero friction, just skip the wheels
04:54 PM andypugh: Hard to make the thing accelerate, brake and steer with zero friction.
04:54 PM andypugh: That was why that hoverboard was basically no fun.
04:54 PM XXCoder: not for wheels, for where frame contacts wheel
04:54 PM XXCoder: but yeah can do sleds if have that lol
04:54 PM andypugh: I just weighted my bike. 19.5 lbs in your Freedom Units.
04:55 PM XXCoder: I want freedom from idiotic freedom - X stuff lol
04:57 PM andypugh: The weight limit for a Tour de Ffrance bike is 15 lbs. ut you can buy off-the-shelf bikes weighing 4.6kg (20 lbs)
04:58 PM andypugh: So my effort is pretty weighty, actually.
04:58 PM XXCoder: I wonder how wide that lotus is. cant be more than 2 cm
04:59 PM andypugh: It was made with an emphasis in narrowness and aero.
04:59 PM XXCoder: next is genetic mods
04:59 PM XXCoder: make body like fish with arms and legs thats very thin and low wind resistance
04:59 PM andypugh: And it won. Not by a little bit either, the pursuit ended with an overtake, which it pretty much unheard-of in an olympic final.
04:59 PM XXCoder: whoa
05:00 PM andypugh: This was only partly the bike, though rather unfairly the bike seemed to get the credit.
05:00 PM XXCoder: how embarring for overtaken guy
05:01 PM XXCoder: well off to ot work laters
05:05 PM Tom_L: maybe a lathe room but certainly not a living room
05:08 PM Tom_L: andypugh, is that your ride to work bike?
05:08 PM andypugh: It will be
05:08 PM Tom_L: hope you have a place to lock it up good
05:10 PM andypugh: It’s worth a fraction of what the cars and motorcycles are worth.
05:21 PM CaptHindsight: Intel® Celeron® 847 Processors Chipset Intel® HM70 1.1GHz latency jitter 16K with RTAI
05:22 PM CaptHindsight: uses DDR3 SO-DIMM :( so abit pricey
05:23 PM CaptHindsight: but the boards were only $35
05:23 PM andypugh: I have 8 megs of DDR3 SoDIMM going spare in the wrong country
05:23 PM andypugh: (my new machine uses DDR4)
05:24 PM _unreal_: CaptHindsight, my tinkerboard got better jitter result then that :)
05:25 PM _unreal_: andypugh, lol 8MEGS? what decade are you buying memory for
05:27 PM CaptHindsight: _unreal_: are you using the open Mali accel drivers?
05:32 PM _unreal_: I believe so?
05:32 PM _unreal_: cap one sec
05:33 PM _unreal_: CaptHindsight, this is my post it will give you a lot of info https://forum.armbian.com/topic/10007-tinker-board-current-rtos-working-free-offer/
05:39 PM _unreal_: CaptHindsight, ?
05:40 PM _unreal_: I have a few friends that are helping to get the hal driver working. I have been so busy with work as of late I have not had time to keep up on it. but with luck when the final software is ready it will be a DROP in image for a tinkerboard to use linuxcnc
05:46 PM CaptHindsight: how are you using the Tinker with LCNC?
05:47 PM CaptHindsight: _unreal_: with Ethernet to an FPGA or?
05:53 PM CaptHindsight: can you toggle GPIO's into the 10's of KHz?
05:58 PM _unreal_: CaptHindsight, That is the goal
05:58 PM _unreal_: use the GPIO to directly drive motor controllers step/dir
05:59 PM CaptHindsight: how fast do they toggle?
05:59 PM _unreal_: once the other guys get the hal driver working good and tuned
06:00 PM _unreal_: I believe 20khz should be reasonable...
06:00 PM _unreal_: it is an ARM cpu after all but a 4core and 2gigs of ram
06:00 PM _unreal_: it blows away the raspberry pi
06:01 PM CaptHindsight: we have been working with various ARM soc's with Linuxcnc for years
06:02 PM CaptHindsight: the main issue was GPU accell
06:02 PM CaptHindsight: you could have a pretty decent GUI by using 3-6 cores for software rendering
06:03 PM CaptHindsight: but now with the open mali drivers thats not a problem anymore
06:05 PM _unreal_: CaptHindsight, my built has all hardware accelleration enabled
06:05 PM _unreal_: including streaming codecs for video etc....
06:06 PM _unreal_: so ya I can open and view cad files easy using the tinkerboard in blender
06:10 PM CaptHindsight: I don't have much use for software stepper systems
06:11 PM CaptHindsight: I'm tired of supporting the cheapskates
06:12 PM CaptHindsight: they don't give much back
06:12 PM CaptHindsight: it would be different if they actually contributed code
06:19 PM CaptHindsight: _unreal_: glxinfo and uname -r can you run this and post the output?
06:20 PM CaptHindsight: glxinfo
06:20 PM CaptHindsight: uname -r
06:20 PM CaptHindsight: we'd be interested to see what is in there
06:21 PM CaptHindsight: _unreal_: going out, bbl, please post it when you get a chance
08:08 PM cerna[m] is now known as cerna
09:14 PM norias: CaptHindsight: who are the cheapskates?
10:09 PM ve7it: andypugh, talking about making lighter bikes... I could loose 20kg from around the waistline much esier than loosing 20kg off the bike weight!
10:13 PM andypugh: I have been 20kg lighter than I am now. (just noticed, 20kg is pi stones…)
10:16 PM roycroft: mayhap you should lay off the pi
10:19 PM andypugh: Anyway, time to sleep, the sun is coming up
10:21 PM ve7it: cheers
10:53 PM _unreal_: sigh.... waiting for my soldering iron to heat up
11:25 PM CaptHindsight: reflow oven?