#linuxcnc Logs

Jan 07 2021

12:00 AM skunkworks: https://www.youtube.com/watch?v=1NXDxouf96s
12:06 AM XXCoder: whats you working on?
01:35 AM Deejay: moin
04:55 AM JT-Cave: morning
05:10 AM Loetmichel: *MUHAHA* just got an ad for a Solar power bank. 24Ah... Solar cell: 5V200mApeak... min 120h of high noon sun for a single charge... *wiping laughing tears from eyes*
05:13 AM XXCoder: just 120 hours wow lol
05:47 AM Tom_L: morning
05:55 AM XXCoder: yo
06:21 AM norias: hi
06:22 AM XXCoder: hey
06:22 AM norias: how are you?
06:23 AM XXCoder: dizzy as usual. you?
06:23 AM norias: well, the drugs are working, so good
06:23 AM norias: why are you dizzy?
06:23 AM XXCoder: i'd like to know lol
06:23 AM norias: that's probably not good
06:24 AM XXCoder: thats before you know its been gone on for months
06:24 AM XXCoder: i have doctor appt waiting for that
06:25 AM norias: well, i hope they get it solved
06:26 AM XXCoder: yeah
06:27 AM norias: any other symptoms?
06:27 AM norias: nausea?
06:27 AM XXCoder: nah
06:28 AM XXCoder: right ear tickles often lol
06:28 AM norias: visual disturbances?
06:28 AM norias: ahh, ok
06:28 AM XXCoder: thats why im going to ent
06:28 AM norias: that's less troubling
06:29 AM XXCoder: it dont sync though, ear thing is sometimes
06:29 AM XXCoder: dizzy is forever
06:29 AM norias: yeah, but if it's an inner ear infection
06:29 AM XXCoder: maybe dunno
06:29 AM norias: you won't necessarily always feel it
06:29 AM norias: but any little pressure there is going to knock you off
06:30 AM norias: that said, i'm not a doctor
06:35 AM Loetmichel: hehe, good thing that i have a "horse constitution" as they say in germany.
06:36 AM Loetmichel: Granted, i noticed that 2 constectuive days with less than 2 hours of sleep arent as easy shrugged off as they were 30 years ago.
06:36 AM Loetmichel: (found a good book... forgot the time reading in bed)
06:37 AM Loetmichel: consecutive
06:38 AM XXCoder: lol
06:39 AM sensille: apropos, /me waits for the next wandering inn to become available as audiobook
06:39 AM sensille: *apropos good book
06:39 AM XXCoder: i love wandering inn
06:40 AM sensille: that was a nice recommendation from you
06:40 AM XXCoder: unfortunately it mnight fall apart if author keeps tacking more plots
06:40 AM * Loetmichel is reading the "ring of fire" novel series by Eric Flynt.
06:40 AM XXCoder: nice :)
06:40 AM XXCoder: currently reading The Culture series
06:42 AM sensille: oops, "consider phlebas: in your library". i don't remember ...
06:43 AM XXCoder: sens you might like artifical Jelly on royal road
06:43 AM XXCoder: dont worry, reading isnt as lengthy!
06:43 AM sensille: i like lengthy audiobooks, otherwise it gets expensive fast :)
06:44 AM XXCoder: :) its free story though
07:30 AM JT-Cave: weee it's snowing
07:31 AM XXCoder: send some
07:31 AM XXCoder: in fact, send all of em
07:37 AM JT-Cave: send some chickens?
07:38 AM XXCoder: against law here i think
07:38 AM XXCoder: as pet maybe but not few of em kinda thing
07:39 AM JT-Cave: most cities have chicken rules
07:41 AM lag: Good afternoon folks
07:42 AM lag: Would anyone have any idea why my auto-home on my dual-motor gantry sends the motors in opposite directions?
07:43 AM Tom_L: one is wired backwards?
07:44 AM lag: They're facing the same way and wired up the same
07:44 AM lag: Also jog works as expected
07:44 AM JT-Cave: homing not set right in the ini
07:45 AM JT-Cave: sign wrong on one
07:51 AM lag: Tom_L: JT-Cave: https://pastebin.ubuntu.com/p/tSY54zkmbH/
08:05 AM JT-Cave: the scale is different so they are not facing the same way
08:06 AM JT-Cave: [JOINT_1] HOME_SEARCH_VEL = -0.1
08:06 AM JT-Cave: sorry im wrong
08:06 AM JT-Cave: didn't see 2 was - also
08:08 AM lag: No worries
08:08 AM lag: Not sure I can work this out
08:08 AM lag: Especially as jog works well
08:08 AM JT-Cave: try HOME_SEARCH_VEL = -0.1 on both joints
08:10 AM JT-Cave: you're using linuxcnc 2.8?
08:19 AM lag: JT-Cave: 2.8.1
08:20 AM lag: It only works as expected if HOME_SEARCH_VEL is negative on one axis and positive on the other
08:20 AM lag: But that seems like a hack
08:20 AM lag: How come jog knows what to do?
08:21 AM JT-Cave: sounds like a bug to me...
08:21 AM * JT-Cave heads to the shower to start his day
08:38 AM lag: I have an idea as to what might be going on
08:39 AM lag: Is it possible to home a 2-jointed axis using only one sensor?
08:39 AM lag: If you're willing to omit squaring
09:32 AM skunkworks: JT-Cave: what is your little drone that is FPV?
09:33 AM skunkworks: lag: I would think so - if you hooked both joint home inputs to the same switch.
09:36 AM lag: skunkworks: It won't allow me to do that
09:37 AM lag: Maybe I need HOME_IS_SHARED for it to work
09:38 AM lag: ATM LinuxCNC won't start if I try to hook 2 homes up to the same pin
09:44 AM lag: pin xxx was already linked to signal
09:46 AM skunkworks: You can - you just need to do it correctly. Hal is very literal
09:47 AM jdh]: literal is a good thing for HAL to be
09:47 AM skunkworks: Right? :)
09:49 AM skunkworks: you need to unhook pin xxx from the other signal.
09:50 AM lag: Not sure how that would help?
09:50 AM lag: Then I won't have a signal for Y1
09:54 AM skunkworks: net Yhome physicalswitch joint.whatever1 joint.whatever2
09:54 AM skunkworks: net Yhome physicalswitch joint.whatever1home joint.whatever2home
09:54 AM skunkworks: paraphrasing
09:55 AM skunkworks: do you have your hal file?
09:56 AM lag: Oh, I see what you mean
09:56 AM lag: It's done as part of the `net whatever => whatever`
09:57 AM lag: Not `net whatever <= whatever`
09:57 AM lag: Let me try it
09:57 AM skunkworks: <= doesn't do anything other than for us humans
09:57 AM skunkworks: so the net comand is
09:58 AM skunkworks: net 'signal name' 'pin' 'pin' 'pin'
09:58 AM JT-Cave: skunkworks, I have a few quads...
09:58 AM skunkworks: so you can do things like
09:58 AM skunkworks: JT-Cave: what one do you like for fpv?
09:59 AM skunkworks: net yhome physicalswitch joint.whatever1 joint.whatever2
09:59 AM skunkworks: or
09:59 AM skunkworks: net yhome physicalswitch
09:59 AM skunkworks: net yhome joint.whatever1 joint.whatever2
10:00 AM skunkworks: those 2 examples do the same thing. hooking pins to signal
10:01 AM lag: skunkworks: https://pastebin.ubuntu.com/p/vXgm2zdYnV/
10:02 AM skunkworks: net home-x <= parport.0.pin-10-in
10:02 AM skunkworks: net home-y1 <= parport.0.pin-11-in
10:02 AM skunkworks: net home-x => joint.0.home-sw-in
10:02 AM skunkworks: net home-y1 => joint.1.home-sw-in
10:02 AM skunkworks: net home-y1 => joint.2.home-sw-in
10:03 AM skunkworks: lag^
10:03 AM JT-Shop: skunkworks, the one I've been flying the most lately for no special reason is my Betafpv Beta 75S BNF Micro Whoop Quad
10:04 AM skunkworks: JT-Shop: thanks!
10:04 AM JT-Shop: I fly all my quads with my FrSKY Taranis Plus
10:05 AM JT-Shop: the crazpony 550mAh 3.8v batteries seem to fit it the best
10:05 AM JT-Shop: battery size can be an issue with micro quads
10:06 AM lag: skunkworks: Ah, I did `net home-y2 => joint.1.home-sw-in` which ended in another error about redefined signals
10:06 AM lag: skunkworks: Thanks
10:07 AM JT-Shop: for my 1S batteries I use UltraPower UP-S6 1S charger
10:07 AM JT-Shop: charge 6 at a time
10:07 AM skunkworks: serious :)
10:08 AM skunkworks: I think at some point the oldest might want a fpv - she is getting better at controlling the cheap drones we have now
10:16 AM JT-Shop: yea with ~4 minute flight times having a pocket full of charged batteries is more fun
10:16 AM JT-Shop: most of my mini quads are duckted fan type so if you bump into something it just falls out of the sky
10:17 AM JT-Shop: I have a Tiny Whoop and one that is brushless a Mobula 6/7
10:19 AM lag: skunkworks: It verks!
10:20 AM lag: skunkworks: Is it odd that this also fixed my issue where the y1 and y2 motors tried to home in different directions?
10:22 AM skunkworks: yes - if the switch logic was wronge (it thought the switch was already pressed)
11:11 AM lag: skunkworks: Ah, okay, makes sense
11:11 AM lag: skunkworks: Thanks for your help
11:22 AM sorki is now known as srk
12:03 PM Vq_ is now known as Vq
02:46 PM perry_j1987: hows it going today guys
02:47 PM CaptHindsight: skunkworks: nice job on the polygon videos, I've been using them to show people how to use spindle synchronized motion
02:47 PM gregcnc: forking headache
03:02 PM perry_j1987: no reason to bother implementing this door interlock switch that came with the lathe eh?
03:09 PM Rab: I got a pointless treasure: https://www.ebay.com/itm/303800035727
03:09 PM Rab: I already have a little collection of vintage calculators, I couldn't resist branching out.
03:11 PM gregcnc: that's neat
03:11 PM Rab: I took it apart to take out the NiCd battery, because contrary to the listing it was pretty much toast. The construction is pretty crazy, it uses a rack and pinion geared up to spin an optical encoder.
03:12 PM Rab: The whole mess, rack and gearbox seems to have a total backlash of .0005". It must have cost a breathtaking amount of money new.
03:49 PM skunkworks: we have a lathe that has 2 resolvers attached to each lead screw. Each one with a different gearing. One for metric - and one for english. To switch between - you had to shut it off - flip a switch - turn it back on...
03:50 PM skunkworks: spring loaded double gear train.
03:50 PM skunkworks: vintage - 73
04:05 PM perry_j1987: man got hit with wall of tired
04:18 PM Tom_L: it's a bad sign when 73 doesn't seem so... vintage
04:22 PM jdh]: 5th grade
04:26 PM JT-Shop: dang big snow flakes over an inch across
04:27 PM roycroft: and i just had to turn the ac on in my office because it's been so unseasonably warm for the past week
04:30 PM jymmmm: JT pics???
04:37 PM Tom_L: JT-Shop, yeah that sounds like what we got near the 1st
04:39 PM CaptHindsight: polar vortex has been strengthening, looks like we get some real cold a week from now
04:42 PM CaptHindsight: maybe not except for FL https://www.cpc.ncep.noaa.gov/products/predictions/814day/814temp.new.gif
05:15 PM jdh]: I got a big Grizzly catalog in the mail.
05:15 PM jdh]: haven't seen a paper catalog in years
05:15 PM perry_j1987: there we go back in the recliner for a bit
05:15 PM perry_j1987: hows it going guys
05:15 PM JT-Cave: I get so many they help to keep the shop warm
05:16 PM _unreal_: sweet just got my new motion controller my MK2 motion controller
05:16 PM _unreal_: thing is huge
05:16 PM _unreal_: and as expected typciall chines dog shit. no anti static bag :S
05:16 PM JT-Cave: jymmmm, no photos
05:16 PM _unreal_: It DID come with some thing interesteing though and NOT listed
05:17 PM perry_j1987: https://twitter.com/elonmusk/status/1347254119237439495/photo/1 lol
05:17 PM _unreal_: came with a PWM to 10v converter adapter single IC board
05:17 PM _unreal_: like 2 chips on it
05:18 PM perry_j1987: i got to shop for a BOB
05:18 PM perry_j1987: keept forgetting to get one ordered
05:20 PM CaptHindsight: if you want a monthly thick paper catalog sent to you, order from https://www.usplastic.com
05:20 PM CaptHindsight: it doesn't stop
05:20 PM _unreal_: what does BOB stand for ?
05:20 PM CaptHindsight: I'd rather get a better price on bottles than a book every month
05:21 PM JT-Cave: hmmm I need to go out in the snow and give Molly a hug so she will go in the coop...
05:22 PM perry_j1987: breakoutboard
05:23 PM CaptHindsight: https://web.wpi.edu/Pubs/E-project/Available/E-project-042612-135331/unrestricted/Booth-Massey-MQP.pdf
05:23 PM CaptHindsight: Surface and Materials Analysis of Thread Rolling Dies
05:40 PM perry_j1987: whats the main diff between all these parport BOBS
05:46 PM jdh]: optos, power, terminal strips?
05:54 PM CaptHindsight: pretty much
05:55 PM CaptHindsight: so some have more connector options, faster optos etc
05:55 PM CaptHindsight: or clear instructions and data sheets
05:55 PM perry_j1987: https://amzn.to/2JUPhrL
05:55 PM perry_j1987: 8 dollar one vs?
05:56 PM jdh]: you are going to be using mach?
05:56 PM perry_j1987: https://amzn.to/2MMX9Nb this is the one i got on my old lathe
05:56 PM perry_j1987: no linuxcnc
05:57 PM perry_j1987: that usb is just a 5v provider
05:57 PM jdh]: I don't seem much difference
05:57 PM Tom_L: usb power is sooo abused
05:58 PM perry_j1987: the one i currently have can use usb or there's screw terms as well
05:58 PM perry_j1987: not sure on that 8 dollar one
05:59 PM perry_j1987: so the encoders on these servos are going straight to the g320x drivers
05:59 PM JT-Cave: I gave the FedEx driver a dozen fresh eggs... poor guy has been working some long hours
05:59 PM perry_j1987: so i wont need much more than a parport board for this lathe i dont think
06:00 PM perry_j1987: gj JT-Cave
06:00 PM Tom_L: the way FedEx drivers drive around here, the eggs will be lucky to make it home
06:00 PM perry_j1987: haha
06:00 PM perry_j1987: maybe JT-Cave had a diabolical motive after all
06:01 PM JT-Cave: he's a country boy so I'm sure the eggs will make it home
06:01 PM Tom_L: in my younger years we used to get farm fresh eggs by the box straight from the farmer
06:02 PM jdh]: Farmer-JT
06:02 PM perry_j1987: theres a place down the road offers honey and eggs, i kept meaning to stop last summer
06:03 PM JT-Cave: Tom_L, by the gross?
06:04 PM JT-Cave: the driver had a grin from ear to ear when I gave him the eggs
06:05 PM _unreal_: who's using mach
06:06 PM _unreal_: You know what I miss about the old computer days...
06:07 PM _unreal_: OLD beige computer cases made GREAT cnc control cabinets
06:09 PM * JT-Cave turns on the magnetassswitch on the couch
06:24 PM perry_j1987: woo my drivers will be here tomorrow
07:08 PM Tom_L: JT-Cave, yes
07:45 PM unterhaus: _unreal_ Dell workstation cases are pretty good for making things out of
07:45 PM _unreal_: ya
07:45 PM unterhaus: not the consumer level computer cases though
07:46 PM _unreal_: I still have an old chief tech dragon series case
07:46 PM _unreal_: full tower
07:47 PM _unreal_: I have this one in metallic blue
07:47 PM _unreal_: https://www.newegg.com/black-chieftec-dragon-atx-full-tower/p/N82E16811160027
07:49 PM _unreal_: HAY THERE IT IS STILL WOW
07:49 PM _unreal_: https://www.overclockers.com/berins-case-mods/
07:49 PM _unreal_: god that case is sitting next to me. other then the computer and some other stuff un changed
08:12 PM perry_j1987: so in the future i'd like to fully automate this 9x20 lathe
08:12 PM perry_j1987: which means i'll need some sort of collet chuck / closer system
08:12 PM perry_j1987: trying to research what options i'd have for that right now
08:17 PM perry_j1987: looks like i'd need a 5c pneumatic chuck
08:26 PM perry_j1987: https://www.youtube.com/watch?v=9I0UYXVqIn8
08:26 PM perry_j1987: they just launched
08:40 PM gregcnc: what is the spindle bore of that lathe?
10:28 PM perry_j1987: back
10:28 PM perry_j1987: gregcnc 25/32
10:28 PM perry_j1987: sorry got a phone call and didnt see your question