#linuxcnc Logs
May 23 2021
#linuxcnc Calendar
12:16 AM mrec_: lathe yes
12:23 AM mrec_: https://www.youtube.com/watch?v=S4MFU8FYsbU
12:23 AM mrec_: this guy is using T0101 for Tool 1 offset 1, that's not supported by linuxcnc in a direct way no?
12:23 AM mrec_: well there's only one offset in the tool table so I guess things have to be defined one by one and cannot be mixed
12:56 AM veegee: Deciding between 400W and 700W servos for my vertical mill
12:56 AM veegee: I have a CNC router, but there's steppers on that
12:57 AM veegee: Obviously torque is the most important thing and I want to avoid a belt drive. Highly prefer direct drive and for that reason alone, might have to go with 700W servos with 7N•m peak torque
01:06 AM veegee: Although this one is very tempting: https://www.automationtechnologiesinc.com/products-page/ac-servo-motors/1-3-kw-nema42-ac-servo-motor-kit, 15 N•m peak torque
01:07 AM veegee: CaptHindsight standard 14x40 taiwanese lathe, ACER E-Lathe 1440V
01:08 AM veegee: The acme screws are exposed and dead simple to do this conversion
01:08 AM veegee: I'm going to convert the lathe first because I already have a CNC router and I can wait to convert my two large mills
01:09 AM CaptHindsight: i had a similar model i sold a few years ago
01:09 AM CaptHindsight: check out this beast of a CAM grinder https://www.youtube.com/watch?v=hl60zEDQbVo
01:09 AM veegee: The lathe is solid, comes apart easy. I can machine a motor mount and swap in a nice big ball screw
01:09 AM veegee: And this closed loop stepper kit is perfect for the longitudinal feed: https://www.automationtechnologiesinc.com/products-page/nema34-closed-loop-stepper-motor-system-hybrid-servo-kit/nema-34-hybrid-servo-motor-kl34-8n-1000-rated-torque-1128-oz-in
01:09 AM CaptHindsight: mine was an Enco or Emco, same castings
01:10 AM veegee: Yeah they 're probably all the same castings lol
01:10 AM veegee: The beds on these things are identical
01:11 AM CaptHindsight: mine was crashed, they had sheared of a pin for one of the feed gears
01:11 AM CaptHindsight: of/off
01:11 AM veegee: perfect opportunity to get rid of all the gears and just convert it to CNC
01:11 AM CaptHindsight: and yanked the wiring dramatically from the control box
01:12 AM veegee: I'm being intentionally harsh with mine like changing gears while running because all the gears will be removed anyway
01:13 AM veegee: And my annealing of the brake rotors worked
01:13 AM veegee: It was on a big open flame, so incredibly crude with no temperature control, but it worked
01:14 AM mrec_: I wonder CNC lathes are cheaper to manufacture than traditional ones I feel
01:14 AM veegee: mrec_ well it would make all the gears useless
01:14 AM mrec_: I removed many parts from my manual lathe
01:15 AM veegee: It's just so hard to get a nice surface finish without some kind of automatic feed
01:15 AM mrec_: well surface finish doesn't matter so much with my machine
01:15 AM mrec_: the machine all over is weak but CNC really makes something out of it
01:15 AM veegee: I don't have a surface grinder or cylindrical grinder yet, so matters for me
01:15 AM mrec_: impossible to handle it with that kind of accuracy by hand
01:16 AM veegee: also ball screws are an instant improvement for any machine
01:16 AM mrec_: the surface finish is okay for me I can't complain about it
01:16 AM veegee: it completely transforms the way it feels
01:16 AM mrec_: I'm using ballscrews on Z but still leadscrews on X it works for me
01:16 AM veegee: but yeah, the cutter will push back against your hand
01:16 AM mrec_: I realize that machine has limits and I'm already on it it's not worth to do more improvements on it
01:16 AM veegee: what size of lathe is it?
01:16 AM mrec_: it's better to buy a heavier better one (you seem to have a good one)
01:17 AM mrec_: small mini lathe 180mm on the Z axis
01:17 AM mrec_: the machine fits under a table here
01:17 AM veegee: This one is mine: https://aceronline.net/acergroup/el-el1440v.htm
01:17 AM mrec_: I saw that .. that's on a completely different level
01:18 AM mrec_: https://www.weissmachinery.com/brushless-lathe-series/57292655.html
01:18 AM mrec_: that's mine
01:18 AM mrec_: you can do quite a lot with it, but it requires special handling
01:19 AM roycroft: mine's more like veegee's - it's a 12x36
01:19 AM mrec_: for manual operation I'd not go further than aluminium, I also turn steel with it with NC it's ok
01:19 AM mrec_: but I'm not a fan of manual operation it's a monkey job .. roughing etc.
01:19 AM roycroft: i used to have a mini lathe like yours, mrec_
01:19 AM mrec_: it's excellent for learning I feel
01:19 AM roycroft: i turned parts accurately with it
01:20 AM mrec_: me too
01:20 AM roycroft: but it takes a delicate touch
01:20 AM mrec_: I'm at 0.05mm I think
01:20 AM mrec_: https://i.snipboard.io/1xFS8b.jpg
01:21 AM mrec_: https://i.snipboard.io/XsjAvw.jpg (the different surface is my programming fault)
01:21 AM roycroft: mine was not a combo machine -just a lathe
01:21 AM mrec_: that's S15C steel as far as I know (my wife is getting the material)
01:22 AM mrec_: impossible to do that manually
01:22 AM mrec_: the motor will be stuck because the VFD is not good
01:22 AM roycroft: yeah, i had the vfd rebuilt on mine
01:22 AM mrec_: I think we talked about that some time ago I think
01:23 AM roycroft: i had a much better lower speed torque curve after the rebuild
01:23 AM roycroft: probably
01:23 AM mrec_: mine is completely coated and there are no potentiometers on it
01:23 AM roycroft: right
01:23 AM roycroft: now i remember
01:23 AM mrec_: after the talk I took it apart again and had a look at it
01:23 AM roycroft: you'd need to completely replace it
01:24 AM mrec_: but there I'm at the point where I say is it worth it?
01:24 AM mrec_: I'll leave it as it is and just get a new heavier machine at some point
01:24 AM mrec_: it's a mini lathe good for learning and doing some things it is what it is.
01:25 AM roycroft: and it is still fine for making small parts
01:25 AM mrec_: of course someone can put more and more into it but is it really worth it ... I somewhat doubt
01:25 AM roycroft: while mass is nice in a machine, you don't need it to make precision parts
01:25 AM mrec_: it will work certainly but if I have the option to get a bigger one I'd pick choice number two
01:25 AM roycroft: look at any watchmaker
01:25 AM roycroft: they make very precise parts, and use a tiny lathe that sits on a desktop
01:26 AM mrec_: watchmakers are probably not parting too much steel but work with software material which again requires different handling
01:26 AM mrec_: softer material*
01:26 AM mrec_: not software..
01:26 AM mrec_: it all works for me but care needs to be taken
01:26 AM roycroft: right
01:27 AM roycroft: and i get where you're coming from
01:27 AM roycroft: you've put a lot of time and effort and money into the machine you have
01:27 AM mrec_: I did not put so much money into the machine I have
01:27 AM roycroft: and you're at a point where it makes more sense to step up to something bigger than to keep investing in the one you have
01:27 AM mrec_: the accessories probably already exceed the amount of the machine
01:27 AM roycroft: i hate to break the news to you
01:28 AM mrec_: stepping up is the point
01:28 AM roycroft: but you can spend $10,000 or $100,000 on a machine, and the accessories will always end up costing more than the machine itself
01:28 AM roycroft: but a bigger machine will handle bigger tooling
01:28 AM mrec_: I want to decrease the need for the special handling eg. to avoid vibrations.
01:28 AM roycroft: and may need bigger tooling
01:29 AM mrec_: I'm looking for more rigidity
01:29 AM roycroft: so you may not be able to migrate some of your stuff to the new machine
01:29 AM mrec_: and a little bit bigger to get bigger material in
01:29 AM mrec_: especially longer material
01:30 AM mrec_: I'll go with the current machine for at least a half more year since it works fine, but I also know its limitations
01:31 AM mrec_: I'd like to either clamp more tools onto the cross-slide or have some turret
01:33 AM mrec_: what I like so far is to share the tools between the lathe and the mill
01:33 AM mrec_: MT2 on the tailstock, MT2 on the rotary table, MT2 in the spindle of the mill
01:34 AM mrec_: I just learned that a few days ago that the rotary table has MT2 .. I always thought it's straight until I made some fixture that did not fit into it
01:35 AM roycroft: rotary tables almost always have taper bores
01:35 AM mrec_: that's good to know, I had no idea about that before
01:36 AM mrec_: one thing that is annoying with the controller of the mini lathe is that I cannot turn off the spindle
01:36 AM mrec_: if the machine is on the spindle turns at low RPM
01:37 AM mrec_: I have interfaced the potentiometer I can control the speed of it but I cannot turn it off (unless I cut the power connection)
01:37 AM mrec_: and since that genius board is coated I cannot modify it easily.
01:40 AM mrec_: roycroft: do you use G70/71/72?
01:40 AM roycroft: my machines are not cnc at this point
01:40 AM roycroft: so no
01:40 AM mrec_: my open question is still about the tool shape.
01:40 AM roycroft: my only current cnc machine is a 3d printer
01:42 AM mrec_: G70/70/72 is interesting, the ones who're closer to the machine try to solve the problem that a cam software should handle (in my view, but others have other views about it of course)
01:42 AM mrec_: are*
01:45 AM Deejay: moin
02:13 AM mrec_: is there a way to change the "cone" like tool position to eg. a parting tool like square in axis for the preview??
02:15 AM mrec_: https://www.asee.org/documents/zones/zone1/2008/student/ASEE12008_0057_paper.pdf
02:15 AM mrec_: 4. Breakout Board Design
02:15 AM mrec_: using optocouplers plus common ground smart :D
03:29 AM mrec_: ok the question is still is anyone using G70/71/72 on a lathe with linuxcnc?
03:56 AM veegee: "I prefer to use collet chuck where possible." lol no shit
05:02 AM jthornton: morning
05:02 AM XXCoder: good morning sir jt!
05:19 AM jthornton: wow I've been knighted
05:19 AM XXCoder: indeed
05:19 AM XXCoder: though no land grant
05:20 AM jthornton: land is in short supply in LaPlace with flooding
05:20 AM XXCoder: ah so thats why
05:21 AM jthornton: https://forecast.weather.gov/MapClick.php?lat=30.0652&lon=-90.482#.YKolTSZOmWg
05:21 AM XXCoder: here its random rain and not rain
06:02 AM Tom_L: morning
06:03 AM jthornton: yo
06:18 AM mrec_: hm.. did anyone use dxf2gcode with a lathe? :-)
06:18 AM mrec_: I wonder why g71 did not make it into it... it's not so difficult to wrap the code
06:19 AM Tom_L: because you didn't write it and submit it?
06:20 AM mrec_: someone did and also made a youtube video but his github repository disappeared
06:20 AM Tom_L: i was looking at the 2.8 bucket list last night
06:20 AM Tom_L: it was rather lengthy even without those 3
06:21 AM XXCoder: mrec som people moved wshen ms bought git
06:21 AM XXCoder: might be elsewhere now
06:22 AM mrec_: https://www.youtube.com/watch?v=qDyOuob4CTM
06:22 AM Tom_L: https://forum.linuxcnc.org/20-g-code/33267-g71
06:23 AM mrec_: I couldn't find that dxf2gcode port
06:24 AM XXCoder: https://www.cnc-club.ru/forum/viewtopic.php?p=318464&sid=ee55ead44f7c22853d927b16808030b1#p318464
06:24 AM XXCoder: theres g71.rar there
06:24 AM XXCoder: there may be later versions down the thread
06:24 AM Tom_L: https://github.com/LinuxCNC/linuxcnc/tree/andypugh/g71type2remap/configs/sim/axis/g71
06:25 AM Tom_L: https://forum.linuxcnc.org/20-g-code/41389-g71-in-linuxcnc-2-9
06:26 AM mrec_: well that's not the problem
06:26 AM mrec_: I need to go from CAM to linuxcnc more the cam is the topic for me
06:26 AM Tom_L: probably wasn't ready
06:27 AM XXCoder: i downloaded the zip file
06:27 AM XXCoder: it seems intact
06:28 AM mrec_: seems like thanks!
06:28 AM XXCoder: welcome
06:28 AM mrec_: it's just taking the dxf2gcode path and wrapping it around G71/G72 as the user demands
06:28 AM mrec_: so he didn't do too much but the ideas to put those things together was good
06:29 AM Tom_L: https://sourceforge.net/p/dxf2gcode/wiki/Postprocessor-Example%20Lathe/
06:29 AM Tom_L: dunno
06:29 AM mrec_: I didn't see anything useful for the lathe in dxf2gcode
06:29 AM mrec_: (regarding g71/72)
06:29 AM mrec_: it's just about generating the g-code I know 2.9 supports it so I'd like to use it
06:30 AM mrec_: it was also interesting to see that dxf2gcode can be integrated into linuxcnc
06:30 AM mrec_: I hope it can change my workflow a little bit
06:30 AM Tom_L: https://forum.linuxcnc.org/31-cad-cam/487-lathe-programming?limit=6&start=24
06:31 AM mrec_: my plan is to use librecad, save the dxf file, convert it with dxf2gcode and go..
06:31 AM mrec_: so far I was able to create the contours (but I had to modify the output of dxf2gcode)
06:31 AM jthornton: off to LaPlace
06:31 AM mrec_: that should be enough to get G71/G72 work (I just need to wrap the gcode into it)
06:32 AM Tom_L: i don't do much lathe programming so i'm not much help here
06:33 AM Tom_L: i've got a lathe package and i think i've maybe used it 2x in the 25+ yrs i've had it
06:33 AM mrec_: I'm trying to optimize my workflow and remove most manual moves with the lathe
06:33 AM Tom_L: we found it just as quick to mdi on the lathe
06:33 AM Tom_L: but lcnc lathe probably doesn't allow for that
06:34 AM mrec_: I'm doing some fixtures for small parts
06:34 AM mrec_: so far I used aluminium for it but I'd prefer some soft steel
06:34 AM mrec_: but I don't want to turn soft steel like that on a mini lathe that's too much work
06:35 AM mrec_: I don't want to do it manually... cnc is ok
06:35 AM mrec_: I've done some nc programs for parts that's ok but fixtures are usually unique things
06:35 AM mrec_: so I want to draw them and go through generating the g-code
06:37 AM mrec_: intersting code, german, english and russian
06:37 AM Tom_L: heh
08:20 AM _unreal_: ok I am now updated on the libra irc thing
08:20 AM _unreal_: hum
08:20 AM _unreal_: this lee guy see's brand name
08:20 AM _unreal_: if my feeling
08:20 AM _unreal_: as to moving etc....
08:20 AM _unreal_: I'll give it time
10:36 AM mrec_: dxf2gcode almost works, the X axis is scaled x2 for some reason
10:36 AM mrec_: well the combo librecad -> dxf2gcode
11:05 AM Tom_L: mrec_, sure that's not just D vs R?
11:05 AM Tom_L: as it's mostly not intended for lathe
11:36 AM mrec_: Tom_L: well I might not get the idea behind that
11:36 AM mrec_: I figured out in lathe mode it doubles the X axis but why?
11:36 AM mrec_: in milling mode it's just as expected
11:37 AM Tom_L: typically in lathe mode you draw half the profile and in mill you do the whole shebang
11:38 AM Tom_L: you'd think they would have a radius mode for lathe
11:39 AM Tom_L: unless i understand it wrong, they got it backwards
11:39 AM Tom_L: at least for gcode purposes
11:40 AM mrec_: well I know that if I take off 0.5mm it will end up with -1mm however I don't really understand why they are doing x-axis stretching
11:40 AM Tom_L: which one does it?
11:41 AM mrec_: it doubles the x axis by 2, or what do you mean?
11:41 AM Tom_L: "IT" which it?
11:41 AM mrec_: dxf2gcode?
11:41 AM mrec_: in lathe mode.
11:41 AM Tom_L: k
11:41 AM Tom_L: well they're wrong
11:42 AM mrec_: unless I take the origin from the backside of the stock I guess...
11:42 AM Tom_L: find the code and half it instead of doubling it
11:42 AM Tom_L: origin on lathe is center and end of part most always
11:42 AM mrec_: sure no problem, but who knows maybe someone had some idea behind that
11:43 AM Tom_L: it wasn't a good one
11:43 AM Tom_L: we set origin to center and end of part then set soft stops for Z to avoid hitting the spindle
11:44 AM mrec_: well there's still G54 work piece coordinate system it goes into that one
11:44 AM Tom_L: i don't think we typically set one on the lathe
11:45 AM Tom_L: i suppose if you had a multi spindle lathe you might need to
11:48 AM mrec_: I'll just update it and dump an email on their mailing list
11:49 AM Tom_L: or at least ask for an explanation
11:49 AM Tom_L: i've never used it
12:14 PM mrec_: if g.config.machine_type=='lathe':
12:14 PM mrec_: fac = 2
12:14 PM mrec_: else:
12:14 PM mrec_: fac = 1
12:25 PM mrec_: I asked about the idea behind it. let's see.
01:14 PM roycroft: *chuckle*
01:14 PM roycroft: folks in another channel are in utter panic mode right now
01:14 PM roycroft: scrambling to move their channel to libera
01:14 PM Tom_L: that's what they like to see
01:14 PM roycroft: they have declared that freenode "is completely dead"
01:15 PM roycroft: i see over 70,000 users on freenode at the moment
01:15 PM roycroft: and just over 14,000 on libera
01:15 PM roycroft: how is a network with 70,000 users "completely dead"?
01:15 PM roycroft: i have left that channel, for now at least
01:16 PM roycroft: they're so busy trying to move they're ignoring users with actual questions
01:16 PM roycroft: irc is like the soap opera of social networking
01:19 PM roycroft: meanwhile, my windows virtual machine on my laptop that runs autocad was running low on disk, and i got sick of having to clean it up constantly, so i expanded the virtual disk by 10GB
01:20 PM roycroft: and now autocad thinks it's unlicensed
01:20 PM roycroft: so i'll probably have to restore the vm from a backup, export the license, expand the disk, and import the license
01:20 PM roycroft: and i have better things to do right now
01:21 PM roycroft: so i guess it's off to the office to do the drawing on my imac, and i know what i'll be doing this evening, after shop time is over
01:22 PM mrec_: ah got it
01:22 PM mrec_: "There are two additional details that I would like to massage in the code. The most important one is that my lathe control (1980 Fanuc 5T) expects to see all X axis moves described as Diameter moves"
01:25 PM mrec_: G7 = Lathe diameter mode
01:25 PM mrec_: so things should be ok as they are
01:29 PM Tom_shop: mrec_, carry on then
01:30 PM mrec_: I just want to wrap that output into G71 or G72
01:30 PM mrec_: but I'll do that tomorrow
01:30 PM mrec_: good night
01:46 PM CaptHindsight: some interesting low cost boards coming up <$20 with Risc-v processors and an integrated microcontroller
01:46 PM CaptHindsight: maybe more boards to software step into the several KHz
03:12 PM CaptHindsight: http://linuxgizmos.com/pine64-unveils-rk3566-powered-sbc-and-reveals-an-upcoming-risc-v-board/
03:21 PM Tom_shop: pcw_home, is the analog converter on the spindles 8bit?
03:25 PM pcw_home: analog converter?
03:28 PM Tom_shop: like on the 7i47S
03:30 PM Tom_shop: i'm trying to get the pwm scale right for 0-10v output on it
03:37 PM pcw_home: its normally 12 bit (and 5 KHz)
03:38 PM Tom_shop: thanks
03:38 PM pcw_home: PWM scale is usually just RPM at 10V
03:39 PM Tom_shop: i see
04:39 PM _unreal_: sup
04:39 PM _unreal_: just got back from the zoo with my daughter
04:40 PM _unreal_: never fails pink flamingos so purrdy... soooooooo smelly
06:10 PM XXCoder: andrew seem to have forced takeover of a channel to prevent people leaving freenode
06:10 PM XXCoder: https://soylentnews.org/article.pl?sid=21/05/23/1632220&from=rss
06:12 PM Tom_L: i'm not that concerned about somebody else's pissing contest
06:12 PM XXCoder: tom its not pissing contest
06:13 PM XXCoder: andrew literally took over channel so people dont leave. thats quite an abuse of authority
06:31 PM rue_mohr: did you notice the religious overtone in the attacks over the last 20 years?
06:31 PM rue_mohr: this kinda adds up
06:31 PM XXCoder: rue i dont really attribe bot attacks to either side, due to it being hard to prove
06:32 PM XXCoder: only thing i can figure is it might be freenode side, due to bots not being banned for way too long
06:32 PM XXCoder: freenode already have system to instantly block em
06:33 PM rue_mohr: its known that freenode admins have been related to some of the attacks
06:34 PM rue_mohr: I'm wondering if its the ones that split out or the rest of them
06:34 PM rue_mohr: picture has to settle a bit first
06:34 PM XXCoder: im slightly slanted towards current freenode owners and such but yeah
06:34 PM XXCoder: because bots lasting way too long. besides that dunno
06:35 PM XXCoder: in least libera linuxcnc is prepped and ready
06:35 PM XXCoder: same owner as here
06:38 PM rue_mohr: I think lots of us are standing with a foot in each boat waiting to see what happens
06:41 PM XXCoder: i stay in both for now, but mainly talk about new stuff in new server
06:41 PM XXCoder: i have left 2 channels here permently
06:50 PM XXCoder: wow
06:50 PM XXCoder: big channel just moved to libera
06:50 PM XXCoder: ubuntu
06:51 PM XXCoder: lets see if andrew tries to block that
06:52 PM XXCoder: https://lists.ubuntu.com/archives/ubuntu-irc/2021-May/001923.html
06:56 PM XXCoder: hey jt
06:56 PM jthornton: hay from Kenner La
06:57 PM Tom_L: evening
06:57 PM XXCoder: ohh high quality hay. hope horses like it
06:57 PM jthornton: LaPlace hotels all closed but one due to winds blowing water from lake inland
06:57 PM XXCoder: jt seems #ubuntu just moved to libera
06:57 PM jthornton: you can't feed hay to deer, they can't digest it
06:57 PM XXCoder: 4 minutes ago. lets see if andrew try undo that like they did for other channel
06:58 PM XXCoder: lol
06:59 PM Bleepshop: jthornton: Yeah, Lake Pontchartrain does like to get uppity if there's a wind.
06:59 PM rue_mohr: didn't they transform the LaPlace hotels?
06:59 PM JavaBean: what "other channel", XXCoder?
07:00 PM XXCoder: its in link i posted earlier
07:00 PM XXCoder: dont seem to be big channel, but any forced takeover is a abuse
07:00 PM JavaBean: ha, i didn't notice a channel name the first time i clicked the link
07:01 PM rue_mohr: it was also a media channel, I'm sure people of that origin will do anything to control media
07:01 PM XXCoder: rue not sure what you mean
07:01 PM rue_mohr: damn, if I'm gonna do some welding, I'll have to get out of my pajamas
07:01 PM XXCoder: they didnt take over their own channel. freenode admins did
07:02 PM rue_mohr: was there a turf war over freenode because of a media channel?
07:03 PM flyback: no because someone sold it from under them
07:03 PM flyback: freenode is *CANUCKED*
07:03 PM * flyback drags rue_mohr against freenode
07:03 PM rue_mohr: flyback,
07:03 PM rue_mohr: you been around
07:03 PM * JavaBean waves at the wild flyback
07:03 PM rue_mohr: remember everythign was fine till lilo died?
07:03 PM flyback: yeah :/
07:03 PM flyback: still not over his death
07:04 PM rue_mohr: the person who 'inherited' freenode "wasn't supposed to" and the other party was completely OUTRAGED
07:04 PM rue_mohr: and then the attacks started
07:04 PM rue_mohr: look at how many of those attacks were a) religious in nature b) focused on making people leave freenode for ANY other network
07:05 PM rue_mohr: right? you were there, you can confirm this right?
07:05 PM flyback: I sorta remember and sorta don't
07:05 PM XXCoder: im sure they, whoever they are, are trying to hit many button as possible
07:05 PM rue_mohr: remember the attacks saying alla this and alla that?
07:05 PM XXCoder: and not nessicarly people who WANT people to leave freenode
07:05 PM flyback: no I remember gnaa attacking
07:05 PM flyback: and then penis pumpers attacking gnaaa
07:05 PM flyback: which was hilarious
07:06 PM flyback: rue_mohr, I built a vibrator
07:06 PM flyback: it didn't work but it sure made a lot of noise
07:06 PM flyback: couldn't get it to pump the transformer
07:06 PM rue_mohr: flyback, you dont remmeber any of the attacks telling people to move to other networks cause freenode was evil?
07:06 PM flyback: I reemmber them bitching about pia
07:07 PM Bleepshop: LMAO! https://www.devever.net/~hl/img/owned.png
07:07 PM flyback: rue_mohr, so I build a self oscillating relay
07:07 PM flyback: vibrator
07:07 PM flyback: or I tried
07:07 PM flyback: oh well
07:08 PM rue_mohr: gee thanks fly
07:08 PM rue_mohr: wtf are you doing here anyhow?
07:08 PM flyback: sorry it's been a long time since I remembered that stuff
07:08 PM rue_mohr: you just go around getting kicked out of channels?
07:08 PM flyback: oh I was invited by someone a long time ago
07:08 PM rue_mohr: for 20 years now?!
07:08 PM jthornton: Bleepshop, yeah I used to live here for quite some time so I remember
07:08 PM flyback: nope
07:08 PM flyback: don't get kicked out of channels anymore
07:09 PM flyback: BMCC
07:09 PM rue_mohr: oh amazing
07:09 PM * flyback headbutts rue_mohr
07:09 PM flyback: BITE MY "CANUCK"........................................CANUCK!
07:09 PM rue_mohr: I'm glad something has changed in the last 20
07:09 PM Bleepshop: flyback: It's easy. One side of the coil to COM and tie the battery across the other coil terminal and NC.
07:09 PM flyback: Bleepshop, yeah I think I did it my own way which didn't work
07:10 PM flyback: i used a dpdt relay
07:10 PM flyback: so I didn't have the transformer hooked to the same pole as the relay magnet
07:10 PM Bleepshop: flyback: SPDT. NC/COM/NO.
07:11 PM flyback: so I used one pole to cycle the relayt and the other to cycle + going to the transformer
07:11 PM Bleepshop: And your core hit saturation because it's steel not ferite and it didn't do squat ?
07:12 PM flyback: could have been my transformer sucked also it was a big ex-ups one
07:12 PM flyback: non smps type
07:12 PM flyback: it was a classic 3+2 terminal one
07:12 PM flyback: secondary/prim
07:12 PM flyback: weighted like 10 lbs
07:13 PM Bleepshop: flyback: Optimised for 60Hz, not the 6kHz hte relay was propably pushing.
07:13 PM flyback: yeah it was 60hz but so is every other circuit out there
07:13 PM flyback: doing the relay inverter
07:13 PM flyback: I probably just didnt wire it right
07:14 PM Bleepshop: flyback: "Hysteresis in transformer cores" Go-ogle will show you the math.
07:15 PM Bleepshop: When you get out of hte tuned sweet spot fo rthe resonance the output goes to shit in a hurry.
07:15 PM flyback: yeah after I get my current project up and runnning
07:15 PM flyback: I willl try again
07:15 PM flyback: https://n40l.fandom.com/wiki/HP_MicroServer_N40L_Wiki
07:15 PM flyback: just ordered the two 3tb hd's tonight
07:16 PM flyback: going to store my data recovery project on a btrfs volume and also do backups of systems in the house
07:16 PM flyback: paid $82 for the unit
07:16 PM flyback: it's 10 yrs old but still good
07:16 PM flyback: 10x8x10 inches
07:16 PM flyback: holds 4 sata drives plus I put a sata sled in the 5.25 top slot for hot swapping a backup drive
07:16 PM Bleepshop: flyback: Here's a 100+ year old version I know for a fact works. LOL https://chestofbooks.com/crafts/popular-mechanics/The-Boy-Mechanic-700-Things-for-Boys-to-Do/How-To-Make-A-Jump-Spark-Coil.html
07:17 PM flyback: those were cool though
07:17 PM flyback: mechanical smps
07:17 PM flyback: some even did double duty
07:17 PM flyback: rectified the ac output back to dc
07:17 PM flyback: syrononous vibrators
07:18 PM flyback: rue_mohr, btw the person who inherated freenode when lilo died
07:18 PM flyback: is the scumball who sold it behind everyone's back
07:18 PM flyback: christel
07:18 PM flyback: I hope she has plans to move
07:18 PM flyback: because people are doxing etc the shit out of her
07:19 PM flyback: they are pissed
07:19 PM flyback: im reserving judgement on the new owner for now
07:19 PM flyback: but the way this was all setup is bullshit
07:19 PM XXCoder: fly i was mostly reserved till he did a hosile takeover of one channel
07:20 PM XXCoder: im in ubuntu to watch if he does again for that very large channel
07:21 PM JavaBean: not just ubuntu. lubuntu and kubuntu are switching to. and i know mediawiki has/is as well. and maybe true/freenas
07:21 PM XXCoder: not surpised, they are family of ubuntu
07:21 PM * Tom_shop hopes to get back to linuxcnc soon
07:21 PM flyback: yeah he can't stop people from jumping ship
07:21 PM flyback: I willl be on this network till it dies
07:22 PM XXCoder: he can stop annocments within-channel but essentally yeah
07:22 PM flyback: in order to catch old friends who happent o stop by one day for the first time in yrs and dont know wtf is going on
07:22 PM XXCoder: me, ill just close channels as it moves over. will close server for good when im in zero channels
07:23 PM jthornton: hay Tom_shop
07:23 PM Tom_shop: hi jt
07:24 PM jthornton: internet at the Holiday Inn is slower than home lol
07:24 PM Tom_shop: been trying to tune my spindle vfd a bit
07:24 PM Tom_shop: hah
07:24 PM jthornton: having any luck?
07:24 PM Tom_shop: well yes and no
07:24 PM Tom_shop: using a straight analog signal from lcnc to it, yes very much so
07:24 PM Tom_shop: now i need to work on the pid in linuxcnc for it
07:25 PM Tom_shop: no bottom end rpm without it
07:25 PM Tom_shop: the analog isn't linear or the vfd input isn't
07:25 PM jthornton: is there a minimum rpm the spindle will do?
07:25 PM jthornton: that makes it harder
07:25 PM Tom_shop: i dunno but before this i've consistently gotten 100 rpm out of it
07:26 PM Tom_shop: not for milling anything...
07:26 PM jthornton: with a pot?
07:26 PM Tom_shop: i use 300 with the edge finder
07:26 PM Tom_shop: no
07:26 PM Tom_shop: thru the 7i47S spindle out
07:27 PM jthornton: Notes I got from listening to Peter are https://gnipsel.com/linuxcnc/tuning/spindle.html
07:27 PM Tom_shop: i just need time to work on the lcnc pid side more
07:29 PM Tom_shop: but i'm getting a feel for the vfd parameters
07:31 PM jthornton: can you set the vfd without emc just to tune it?
07:31 PM Tom_shop: that's what i was doing
07:31 PM jthornton: ah
07:32 PM Tom_shop: i just used analog out straight from the 7i47s though
07:32 PM Tom_shop: with a volt meter on the analog in to the vfd
07:32 PM Tom_shop: got that tracking the way it should be then adjusted the vfd max rpm to go along with it
07:33 PM Tom_shop: (scale)
07:33 PM Tom_shop: he had some pretty mushy generalized settings in it
07:34 PM jthornton: does the vfd have a self tune?
07:34 PM Tom_shop: not that i'm aware of
07:34 PM Tom_shop: no docs on it if it does
07:35 PM jthornton: chinlee vfd?
07:35 PM Tom_shop: yeah
07:35 PM Tom_shop: for a bldc
07:36 PM jthornton: I have a bldc but never used it yet
07:37 PM Tom_shop: it's hard to get the 2 pids to not fight each other
07:37 PM Tom_shop: and get good response
07:38 PM Tom_shop: what file stores the mdi command history?
07:38 PM jthornton: hmm .axis something
07:39 PM jthornton: I'm on windblows let me switch to linux bbim
07:46 PM jthornton: Tom_shop: ~/.axis_mdi_history
07:46 PM Tom_shop: thanks
07:54 PM Tom_L: enough for one day.
07:57 PM jthornton: I hear that, winding down here
08:06 PM Tom_L: well i got it quite a bit more responsive
08:07 PM jthornton: cool
08:09 PM Tom_L: i will probably work on it more another day
08:10 PM jthornton: my brother has a tiny router that runs from the usb on his laptop
08:10 PM Tom_L: as in network router?
08:12 PM Tom_L: the other day the interweb went out here i used the mobile hotspot on my phone but i had to hunt for a laptop that used wifi. all the stuff i use is desktops
08:12 PM jthornton: dunno exactly but it has a board on the back with a usb cable
08:12 PM Tom_L: and it's too hard to use an irc phone app
08:13 PM jthornton: yea irc phone apps suck
08:14 PM Tom_L: she had meetings all last week at different locations and everybody else was scurrying around to find their wifi passwords etc. she just turned on her mobile hotspot i set up for her
08:18 PM jthornton: cool
08:19 PM Tom_L: works great in a pinch
08:19 PM jthornton: my buddy has a mobile hot spot thingy
08:21 PM Tom_L: i keep em off when not using them
08:22 PM Tom_L: your s10 has it
08:22 PM Tom_L: dunno what your data plan is though
08:22 PM jthornton: hmm where is it?
08:22 PM Tom_L: swipe down your settings icons
08:22 PM Tom_L: it's on one of those
08:22 PM jthornton: Mobile Hotspot and Tethering?
08:23 PM Tom_L: yes
08:23 PM Tom_L: you need to set it up first
08:23 PM Tom_L: i changed the name
08:23 PM Tom_L: once set you can just tap the icon
08:23 PM jthornton: ok
08:23 PM Tom_L: then log in on your laptop with those credentials
08:27 PM _unreal_: uploading some photos
08:27 PM _unreal_: just did my first REALLLLY GOOD product laser etchings :)
08:58 PM Bleepshop: Anybody here using FreeCAD ?
08:58 PM * Bleepshop is trying to expand the grid area.
08:58 PM XXCoder: i do
08:59 PM XXCoder: in what mode?
09:27 PM Bleepshop: XXCoder: I'm currently in Sketcher and I ended up loading all the benches to try and get the grid out to 48" square.
09:27 PM XXCoder: interesting. i usually dont worry about grid
09:27 PM Tom_L: you building a castle?
09:28 PM Tom_L: why 48" grid?
09:28 PM Bleepshop: Tom_L: 1/2 sheet of plywood?
09:29 PM Bleepshop: Tom_L: It'll match the table on the router that way and I can use the grid for a reference.
09:30 PM Tom_L: i thought you meant 48" between grid squares
09:32 PM Bleepshop: No, I've got the grid spacing set at 0.25" which is fine for what I'm doing as I don't need to get to 0.125 or 0.0625 yet. I'm just roughing out a design and trying to get a feel for how this works.
09:34 PM Bleepshop: I do find it funny that even though I've told it to use Imperial[inches/lbs] it still insists on the Sketcher window displaying in Metric[mm].
09:35 PM Tom_L: yeah i remember that about it
09:35 PM Tom_L: figured they may have fixed it by now
09:38 PM roycroft: my recollection is that freecad continues to use the units you had set when you created/opened the drawing, even if you change mid-drawing
09:38 PM roycroft: i don't recall if closing and then reopening resets the units or not
09:38 PM Bleepshop: This was created ater the units were set.
09:38 PM roycroft: hmm
09:38 PM Tom_L: mine follows the units i set in my tool list
09:39 PM roycroft: i've created drawings using 0.19 with both si and american customary units
09:39 PM roycroft: and it works with either
09:39 PM roycroft: but i remember some issue with changing units mid-stream
09:40 PM veegee: LOL he said "mid-stream"
09:40 PM veegee: (sorry)
09:40 PM roycroft: one of the things i really like about autocad is that it is unitless
09:41 PM roycroft: which is how i think a cad program should be
09:41 PM roycroft: scale to whatever units you want in the page model
09:41 PM roycroft: but the drawings themselves should be unitless
09:41 PM Tom_L: even if i select one unit set for a drawing i can still post either one
09:41 PM roycroft: yeah
09:42 PM roycroft: if i have american customary set, and i give a dimension a value in mm, it is fine with that
09:42 PM Tom_L: spent some time on the vfd today
09:42 PM roycroft: but displays it in inches
09:43 PM Tom_L: and if i import one i can scale it real easy for the other units
09:43 PM Tom_L: if it doesn't know what units were used
09:43 PM Tom_L: or if i don't know i should say
09:44 PM Tom_L: yeah catia doesn't care, just enter the odd units as they are
09:47 PM CaptHindsight: https://www.youtube.com/watch?v=hl60zEDQbVo looks a bit too flexible for my liking :)
09:48 PM CaptHindsight: easily 5 tons of grinder on a rickety set of supports on each bearing journal
09:48 PM * Bleepshop hates Windows with a throbbing purple passion and if he had known in 1986 what he knows now would probably still be in jail for kicking Bill Gates's ass 50 miles into the Pacific with a Buick tied around his neck.
09:50 PM CaptHindsight: a toy in comparison
09:50 PM roycroft: i'll say to you the same thing i say to the maga wingnuts
09:50 PM roycroft: there's no reason to get all upset and want to commit violence against a person for developing a product you don't like
09:50 PM roycroft: if you don't like windows
09:51 PM roycroft: don't use windows
09:51 PM CaptHindsight: https://www.youtube.com/watch?v=3RVyHZnKw3I
09:51 PM roycroft: next
09:51 PM CaptHindsight: I rarely use Windows but I complain about it more than rarely
09:51 PM roycroft: i don't understand why people use it
09:51 PM roycroft: but they do
09:51 PM roycroft: and i do when i must
09:53 PM roycroft: but if i'm honest, while windows is not very user-friendly, and absolutely no fun to use, opening windows in a virtual machine and running an app that only runs on windows is not a big deal
09:53 PM roycroft: it doesn't bother me at all
09:53 PM CaptHindsight: I some shoes that don't fit that well, but I have no complained about them yet, saving it for a special occasion
09:53 PM Bleepshop: roycroft: That's not based on his products. It's based on his treatment of his employees while I was on the premises pre-Redmond and his questionable actions since. It has nothing to do with software. LOL
09:54 PM roycroft: i'm trying really hard not to learn much about the gates divorce
09:55 PM * Bleepshop was at MS for a job interview in early 1986 and bailed after hearing screams of rage directed at a coder behind the door I was waiting to be allowed to enter.
09:55 PM CaptHindsight: they used actual whips and sticks to beat coders
09:56 PM roycroft: i know two people who are multi-millionaires because they started at microsft in the early '80s, and stuck it out in spite of the harsh working conditions
09:56 PM CaptHindsight: I once heard that Gates stabbed a coder in the back of his hand with a pocket knife for delaying a multimedia codec
09:56 PM Bleepshop: No, that started in '92 when WFW was being aborted.
09:57 PM roycroft: one of them retired in his 30s, bought a large farm near mount vernon washington (about an hour north of seattle), and now collects combine harvesters as a hobby
09:57 PM CaptHindsight: and he used to carry some brass knuckles around to keep people in line
09:58 PM roycroft: microsoft is not the only tech firm that treats its employees somewhat abusively
09:58 PM roycroft: and i'm not trying to rationalize any company's doing so
09:58 PM roycroft: but microsoft did reward its employees a lot better than most tech firms
09:59 PM Bleepshop: roycroft: SCO was almost as bad in '89. I was interviewing there because I knew that multi-user was the way to go with a CPU.
09:59 PM CaptHindsight: I'm not sure if I believe the stories about him and Ballmer keeping the blood of teens around for snacks
10:00 PM roycroft: my friend the combine collector hated working there, but he put in 10 years and retired a multi-millionaire
10:00 PM roycroft: aren't they democrats, capthindsight?
10:00 PM roycroft: we all know that democrats drink babies' blood
10:00 PM CaptHindsight: yeah but only from bottles
10:00 PM CaptHindsight: not right from necks
10:00 PM XXCoder: roycroft: yeah, and apple treated theirs worse
10:01 PM Bleepshop: roycroft: And now he collects combine harvesters... What's that tell you about what that environment does to your brain ? xD
10:02 PM CaptHindsight: he saves them from the trash
10:02 PM roycroft: i don't judge people by their hobbies
10:02 PM Tom_L: some collect cars, some harvesters
10:02 PM roycroft: one thing i can say about the gates, though
10:02 PM roycroft: they are divorcing
10:02 PM CaptHindsight: unless it's making lamp shades from human skin, then I judge them
10:02 PM roycroft: but their house is 60,000 square feet
10:02 PM roycroft: neither of them have to move out
10:02 PM roycroft: and they don't have to ever see one another again
10:02 PM XXCoder: roy from what i understand they dont have feelings for each other
10:03 PM XXCoder: it could be more than that but i dont care
10:03 PM roycroft: i really don't know
10:03 PM Tom_L: i don't know either one and never will and never cared and never will either
10:03 PM roycroft: and i not only really don't care, i actively want not to know too much about it
10:04 PM roycroft: just because they are rich and high profile people, we don't have to know all the gory details of their personal lives
10:04 PM veegee: I'd like to see some gore when it comes to the rich
10:04 PM XXCoder: roy exactly
10:04 PM roycroft: the only divorce details i would ever care about would be if close friends of mine divorced
10:04 PM Bleepshop: Rich peoples problems... The wife has a 100foot restraining order and they can both still be in the master bathroom at the same time. LOL
10:04 PM CaptHindsight: wwwaaattt? How else am I supposed to escape my life?
10:05 PM roycroft: everything else is just kardiashianism
10:05 PM roycroft: kardashianism, dammit
10:05 PM roycroft: and btw
10:05 PM roycroft: i *still* don't know why the kardashians are famous, other than that they wanted to be famous
10:06 PM CaptHindsight: they are very serious and important
10:06 PM veegee: same reason trump got elected, people are just really fucking stupid
10:06 PM veegee: 50% of the population is by definition below average IQ
10:06 PM veegee: well below the _median_ technically but you know what I mean
10:07 PM * roycroft will not get into the phenonemon of the former president tonight
10:07 PM Tom_L: enjoy the discussion. i'm out
10:07 PM veegee: Wait!
10:07 PM veegee: I need a toolpost grinder
10:07 PM CaptHindsight: if 50% is below and 50% is above what about the other half?
10:09 PM CaptHindsight: https://www.theguardian.com/world/2021/may/23/at-least-15-die-in-lava-flows-after-volcano-erupts-in-democratic-republic-of-congo
10:09 PM CaptHindsight: could be worse ^^
10:09 PM roycroft: and i just watched a report on 60 minutes about the volcano that's erupting in iceland
10:10 PM roycroft: folks are doing lava selfies, roasting lava dogs, and making lava s'mores
10:10 PM roycroft: iceland have a long history of living with lava flows, though
10:10 PM roycroft: they know how to act around them
10:20 PM roycroft: i must say, it's really nice to have radio djs back in the studio
10:20 PM roycroft: the shows are so much better when they're live
10:21 PM roycroft: and we're starting to have live concerts again
10:21 PM roycroft: snl had its first full audience in 14 months last night
10:25 PM veegee: https://www.kijiji.ca/v-power-tool/ottawa/cincinnati-tool-and-cutter-grinder/1567775455 How much are these tool and cutter grinders worth?
10:26 PM veegee: $3,000 seems like a reasonable asking price
10:53 PM veegee: Ok so my lathe came with an 8" 4 jaw chuck which looks like the previous owner was too scared to ever use
10:53 PM veegee: it looks untouched. The cam lock pegs weren't even mounted
10:54 PM veegee: So I set it up and mounted it and checked the surface of it with a dial indicator and it looks like it fit perfectly
10:54 PM veegee: Of course I cleaned the D1-4 mount mating parts thoroughly with kerosene
10:54 PM veegee: I took the jaws out and started the lathe up and there was some vibration
10:54 PM veegee: how in the hell is that possible?
10:55 PM veegee: The chuck is definitely mounted properly as far as I can tell yet the vibration indicates that something is off center.
10:55 PM veegee: I mean, chuck itself is not balanced?
10:55 PM veegee: I took it off and put the 3 jaw chuck back on and vibration is gone
11:16 PM drdoc: that may be why the PO never used it
11:17 PM drdoc: holy moly
11:17 PM drdoc: 120V vitamix blender - 12A motor
11:17 PM drdoc: no wonder they'll eat anything
11:27 PM roycroft: it's hard to do precision turning without a 4 jaw, unless you have one of those adjustable 3 jaw chucks
11:27 PM roycroft: in my view, if a lathe comes with just one chuck, it should be a 4 jaw
11:28 PM XXCoder: didnt know adjustable 3 jaw existed
11:28 PM roycroft: yeah, there are 3 jaw chucks that have 4 adjustment screws 90 degrees apart
11:29 PM roycroft: they are not common, and they are expensive
11:29 PM roycroft: and i bet they're a pain in the butt to use
11:30 PM roycroft: if the scroll isn't perfect, you can dial the chuck in for a particular size part, but as soon as you mount a different diameter part in the chuck it's out of alignment
11:30 PM roycroft: and the scroll is never perfect
11:35 PM roycroft: https://www.grizzly.com/products/south-bend-6-high-precision-adjustable-3-jaw-scroll-chuck/sb1314
11:35 PM roycroft: there's one
11:36 PM XXCoder: how do it work?
11:36 PM roycroft: you turn a shoulder on the backing plate 0.015" smaller in diameter than the recess in the back of the chuck, and center it with the set screws
11:36 PM XXCoder: do it adjust one jaw or something?
11:36 PM roycroft: no
11:36 PM roycroft: four set screws on the back of the chuck
11:36 PM XXCoder: 800 usd+ dang
11:37 PM roycroft: i told you they are expensive
11:37 PM XXCoder: yeah
11:39 PM roycroft: there's a link to the manual on that page if you want to know how to install and adjust it
11:39 PM XXCoder: i suppose but i dont have lathe :)
11:39 PM XXCoder: feeling too lazy to read LOL
11:40 PM roycroft: well what i told you already is the essence of how to do it
11:40 PM roycroft: you basically adjust the 4 set screws like you would adjust the jaws on a 4 jaw chuck
11:49 PM XXCoder: bah
11:50 PM XXCoder: i planned to print game board
11:50 PM XXCoder: but im too dizzy to