#linuxcnc Logs

Sep 20 2019

#linuxcnc Calendar

01:55 AM Deejay: moin
03:37 AM Loetmichel: hihi, 3d-printing is nice sometimes... "someone" broke the valve off a vacuum laminating machine off... so i designed a new one and its just printing... so no more holding the finger on the vent for the machine to work today... -> http://www.cyrom.org/palbum/main.php?g2_itemId=17526&g2_imageViewsIndex=1
04:57 AM jthornton: that must have been fun to measure
04:58 AM jthornton: morning
05:05 AM Tom_L: morning
05:07 AM pink_vampire: from what alloy of steel the linear rail shaft is made out of?
05:07 AM pink_vampire: hi Tom_L and jthornton
05:07 AM jthornton: could be any alloy
05:08 AM BitEvil is now known as SpeedEvil
05:08 AM pink_vampire: I'm talking about those 8mm rods that 3d printer use.
05:08 AM jthornton: no telling what alloy China uses to make them
05:08 AM SpeedEvil: You'd hope it was ground hardened rod.
05:09 AM pink_vampire: I mean in general..
05:09 AM SpeedEvil: But in many cases, it won't be very hardened.
05:09 AM SpeedEvil: There is no in general.
05:09 AM jthornton: lol
05:09 AM SpeedEvil: 'an alloy of steel' is probably the best you're gonna come up with.
05:09 AM jthornton: you trying to make some or?
05:10 AM SpeedEvil: From a rigidity point of view, it soesn't matter at all, as all steel is similarly rigid up to its plastic limit.
05:11 AM pink_vampire: I'm trying to do an analysis for a cnc machine frame.
05:12 AM pink_vampire: and I need to select material
05:13 AM jthornton: https://www.thomsonlinear.com/en/products/shafting-products
05:14 AM pink_vampire: 1566 Carbon Steel
05:15 AM jthornton: got all the dead oak trees cut down yesterday, some cut up into logs and stacked... I think my firewood storage will be over flowing now
05:15 AM Tom_L: jthornton, do you know if the syntax on the 7i77 to invert an input is different than the others?
05:16 AM Tom_L: .in_not gives an error
05:16 AM jthornton: you can list all the pins that are available with show pin
05:16 AM Tom_L: i can't :)
05:17 AM Tom_L: i don't have a 7i77
05:17 AM jthornton: they should be similar to all the other mesa cards
05:17 AM Tom_L: that's what i would have thought
05:18 AM jthornton: hm2_5i25.0.7i77.0.0.input-02-not
05:18 AM jthornton: that's my BP mill
05:18 AM Tom_L: net x-jog-select joint.0.jog-enable <= hm2_7i92.0.7i77.0.0.input-20.in_not
05:18 AM Tom_L: so it is different
05:18 AM Tom_L: slightly different syntax
05:19 AM jthornton: different than what?
05:19 AM Tom_L: mine for one
05:19 AM jthornton: you said you don't have a 7i77???
05:20 AM Tom_L: no but the boards aren't consistent
05:20 AM Tom_L: net button-tool-change hal_manualtoolchange.change_button <= hm2_[HOSTMOT2](BOARD).0.gpio.038.in_not
05:20 AM Tom_L: i have that on one of mine
05:20 AM jthornton: ah a gpio pin
05:20 AM Tom_L: i knew they were different but couldn't remember the syntax
05:21 AM jthornton: yea it doesn't make sense to have input-xx.in
05:21 AM Tom_L: i still don't think it will fix anything but i was sure curious
05:23 AM Tom_L: is the 7i77 not gpio?
05:24 AM jthornton: no, the 7i77 has pin names, the gpio is usually on the 5i25 etc
05:26 AM Tom_L: ok
05:26 AM Tom_L: fair to say gpio applies to the main board and input / output apply to the daughter cards?
05:26 AM jthornton: aye
05:28 AM Tom_L: are io 20 21 22 in fact inputs on the 7i77?
05:28 AM Tom_L: well they must be because they are switching in the watch window
05:29 AM jthornton: https://paste.ubuntu.com/p/Rb2zp3tFVj/
05:30 AM Tom_L: but wouldn't that depend on the bit file loaded?
05:30 AM jthornton: do you have a 7i77?
05:30 AM Tom_L: no
05:30 AM jthornton: how are you watching them in a watch window?
05:30 AM Tom_L: he keeps pasting them
05:30 AM jthornton: ah ok
05:31 AM Tom_L: i'll have him try the -not input once but then i'm out of ideas
05:32 AM Tom_L: i'm wondering if it could be a joint / axis issue
05:32 AM Tom_L: he has to use joint in the config but in the watch window it shows axis
05:33 AM Tom_L: the led changes but the TRUE FALSE stays the same
05:36 AM jthornton: in 2.8> there is joints and axes
05:37 AM jthornton: do you know of a good whosit tool to find out who registered a domain?
06:09 AM gregcnc: any, but try a few, a lot of people hide these days
06:18 AM gregcnc: curious probing arrangement https://youtu.be/w3novypPqos
06:21 AM jthornton: lol if you have a haimer probe you already spent the money for a cheap probe or two
06:52 AM sync: the haimer is pretty cheap too
07:38 AM XXCoder: 13 hours.
07:38 AM XXCoder: 13 hours work day lol
07:39 AM XXCoder: 13 hours is way nuts
07:42 AM Elmo40: nothing like burning up your virile years...
07:46 AM XXCoder: my vieile years is in my past lol
07:46 AM XXCoder: besides i dont do it in any kind of daily thing
07:48 AM methods_: you should play a game
07:48 AM methods_: https://poki.com/en/g/one-more-line
07:48 AM methods_: have some fun
07:49 AM XXCoder: dont seem to load
07:50 AM XXCoder: playing https://littlealchemy2.com/ anyway
08:03 AM Lcvette: monring
08:03 AM Lcvette: morning
08:05 AM XXCoder: mooning
08:09 AM Elmo40: methods_, that game is nuts!
08:09 AM Elmo40: cant get past the second object. LoL
08:10 AM methods_: heheheh
08:10 AM methods_: you can like hit the space bar multiple times to make your orbit go further out and easier to control
08:19 AM Lcvette: hey guys, who here is a hal wizard that can solve a stumping problem Tomn_L and I have battled for 2 days now
08:20 AM Lcvette: it is in master 2.9
08:20 AM Lcvette: with a pendant
08:20 AM Lcvette: the issue is we can see everythinhg is wired correctly see changes in the pins in halshow
08:21 AM Lcvette: but we cannot get axis movement
08:21 AM * JT-Shop puts on his plumber hat this morning
09:18 AM Tom_L: Lcvette, try "-not" on the end of those 3 lines instead of .in_not
09:21 AM JT-Shop: don't guess at pin names! get a list of the pins for your config
09:21 AM * Tom_L heads out the door
09:22 AM * JT-Shop heads to town for plumbing supplies
09:35 AM Lcvette: JT-Shop: the pin names are correct in that they show up in halshow
09:36 AM Lcvette: Tom_L was trying to see if an inverted signal on the input would work but the syntax he uses that works on his machine is not working on 2.9
09:53 AM Lcvette: for anyone interested in the issue, i posted all the information in the forum thread below:
09:53 AM Lcvette: https://forum.linuxcnc.org/24-hal-components/37406-2-9-and-pendant-hal-having-problems-need-some-help-please#145674
09:53 AM Lcvette: thanks if you have time to take a look and post any ideas!
10:24 AM Loetmichel: *haha* Your weight to much for the gas strut in your office chair? no problem, 3d-printing to the rescue... i only wonder how long that bit of green PLA will carry my weight :-) -> http://www.cyrom.org/palbum/main.php?g2_itemId=17529&g2_imageViewsIndex=1
10:26 AM jesseg: LOL.. but I think you can get new struts
10:27 AM Loetmichel: jesseg: doesent help
10:27 AM Loetmichel: the strut is to weak for 120kg
10:27 AM Loetmichel: it sags down over time
10:27 AM Loetmichel: new strut wouldnt be better ;)
10:42 AM jesseg: Loetmichel, odd. 120kg shouldn't be any problem for good hydraulics. If the strut sags down it's got a leaky valve.
10:42 AM jesseg: unless we're talking years. How long does it take to sag?
10:44 AM CaptHindsight: a few years ago we started noticing that the cheap vinyl office hairs would delaminate after a year or two...
10:45 AM CaptHindsight: the cylinders would start leaking as well
10:45 AM CaptHindsight: at first you start noticing vinyl shed on the floors
10:46 AM CaptHindsight: then your vinyl chair turns into a thin cloth covered chair
10:46 AM Loetmichel: jesseg: the chairs are onla rated for 90kg ;)
10:46 AM Loetmichel: only
10:46 AM CaptHindsight: people are only rated for 90Kg in china
10:46 AM Loetmichel: they only sag when I sit on them. all of them
10:46 AM CaptHindsight: over that you count as two people
10:47 AM Loetmichel: if my coworker sits on mine everything is fine
10:53 AM jthornton: Lcvette, that was in reference to this
10:53 AM jthornton: <Tom_L> question: if 2.9 has eliminated the use of axis over joint why this? https://matrix.org/_matrix/media/v1/download/matrix.org/RupybYIfdTodTRqqlMlpxKFz and https://matrix.org/_matrix/media/v1/download/matrix.org/HBXlDMUpjSlYKdhSXGXiEnfc
11:02 AM CaptHindsight: who makes a good version of this? https://www.harborfreight.com/plastic-welding-kit-with-adjustable-temperature-96464.html
11:03 AM CaptHindsight: https://www.harborfreight.com/plastic-welding-kit-with-air-motor-and-temperature-adjustment-96712.html
11:13 AM Lcvette: jthornton: gotcha, dgarrett on nthe forum nailed it first try, needed some additional hal lines and now works perffectly!! i know Tom_L will be glad its fixed, it was driving us nuts,...lol
11:39 AM Loetmichel: re at home. 12km commute... WTF? Murphy must work overtime today: FOUR dead cars on the curb. one on the oncoming lane, couldnt ask if he needs help, one had a burst radiator, one lost a piston ("lies over there in the ditch"), one was changing a tyre... and then i overtook a tow truck with a burned out car on its back... ?!?
11:41 AM CaptHindsight: Loetmichel: did the weather just change from summer-like to fall-like?
11:42 AM Loetmichel: nope, pretty much summer like today
11:42 AM CaptHindsight: car gremlins are just busy near you
11:43 AM Loetmichel: seems so :-)
01:31 PM miss0r2: I just made the sweetest deal in a looong time today. I bought a uses Sylvac XT series 3-point bore measuering set. all the range of 20-100mm, including a mic handle and a pistol handle. All the calibration rins included. All works perfectly - you can see its been used, but it is up to spec. I payed ~130eur :D
01:34 PM * jthornton takes five
01:36 PM miss0r2: I was just awestruck! I took the deal ;)
02:04 PM SpeedEvil: miss0r2: nice
02:05 PM miss0r2: I've wanted that stuff for a while - just couldn't afford it
03:05 PM jesseg: Loetmichel, oh OK.
04:15 PM Deejay: gn8
04:52 PM * jthornton calls it a day...
05:30 PM Lcvette: probing works awesome!!!!
05:43 PM Tom_L: nice
05:54 PM CaptHindsight: as I'm heading home and planing to stop at the mall https://www.nbcchicago.com/news/local/woodfield-mall-video_Chicago-560904182.html
05:57 PM jthornton: good thing they didn't try that here we would have shot the wheels off that suv
05:59 PM CaptHindsight: 4 helicopters
05:59 PM CaptHindsight: I though it was big traffic accident from 1 mile away
06:04 PM CaptHindsight: jthornton: pretty sure they have "no guns" sign on the mall doors :)
06:05 PM jthornton: party poopers
06:05 PM jthornton: I thought only criminals had guns in Chicago
06:06 PM CaptHindsight: nope, pretty sure they come with happy meals now
06:07 PM jthornton: lol
06:08 PM CaptHindsight: they drive so bad around here I'm not so sure it was on purpose
06:09 PM jthornton: a bit lost are we as in the old couple saying "wherethefuckarewe"?
06:09 PM jthornton: see Martha that was not the door to the parking garage...
06:11 PM XXCoder: wow pretty cool https://www.youtube.com/watch?v=w8MrqRHu2Es book making. very fancy
06:13 PM * jthornton checks his data usage for the month
06:14 PM Elmo40: http://www.tirehammer.org/tirehammer_website/Tire_Hammer.html
06:15 PM jthornton: wow 2.4GB in the good...
06:15 PM XXCoder: jt its well worthy watching even if dont plan to make a book.
06:16 PM XXCoder: she makes what looks like fancy aged notebook bound in leather, belted and all
06:16 PM jthornton: seems simpler to just use a pulley and belt...
06:20 PM jthornton: she cheats and doesn't use horse hide glue...
06:20 PM jthornton: but pretty cool so far
06:20 PM XXCoder: tyeah thats why I said looks like. but shes using many of actual old techiques too
06:21 PM jthornton: yep
06:23 PM XXCoder: covers is pretty amazing part
06:23 PM XXCoder: its so... involved
06:26 PM CaptHindsight: jthornton: did you ever track down what your big data hog was?
06:27 PM CaptHindsight: or was it just a bunch of small ones
06:27 PM * Tom_L blames the chickens
06:29 PM CaptHindsight: https://www.youtube.com/watch?v=PPB1VNZCMD4 Blacksmiths tyre hammer/ power hammer
06:31 PM XXCoder: oh yeah jthornton hows your chickens so far?
06:39 PM CaptHindsight: I am trying to see how they go from rotary to linear motion
06:39 PM XXCoder: yay tubes arrived. i checked ends on it, it fir perfectly!
06:39 PM XXCoder: awesome
06:39 PM CaptHindsight: I see a pulley on a motor driving the tire with friction
06:39 PM XXCoder: not sure how to cut arylic tube though
06:40 PM CaptHindsight: how is the wheel coupled to the vertical piston?
06:40 PM jthornton: XXCoder, down to 7 hens, one died the other day rest are spoiled rotten
06:41 PM CaptHindsight: https://youtu.be/0V2jpiJtGLw?t=16 I can sort of see it here
06:41 PM XXCoder: sucks. how long do hens live? forgot
06:41 PM CaptHindsight: from minutes to few years
06:41 PM XXCoder: you breeding em or just buying chicks?
06:42 PM XXCoder: future plans that is lol
07:35 PM CaptHindsight: https://www.harborfreight.com/plastic-welding-kit-with-air-motor-and-temperature-adjustment-96712.html has lasted over 15 minutes so far of continuous use
07:36 PM CaptHindsight: fingers crossed, receipt in hand
08:13 PM XXCoder: very firmly in hand
08:22 PM CaptHindsight: what to do with sets of cheap hex keys? Grind down the ends and then try to temper them a bit or just use for shims and sacrificial apps?
08:22 PM XXCoder: cut em up and use as drill hex tool
08:22 PM XXCoder: you can get nice finish on cut side by using drill to grind hex on grinder
08:25 PM CaptHindsight: what tooth size for circular saw on HDPE sheet?
08:27 PM XXCoder: the correct one for hdpe of course ;)
08:28 PM CaptHindsight: heat is the main problem
08:28 PM andypugh: CaptHindsight: Well, I know I should just thrown them in the scrap bin. But somehow they all survive to form a specific stratum in the bottom of the toolboxes,.
08:28 PM XXCoder: andy theyb dont just survive. they breed
08:30 PM CaptHindsight: Tool Chest Archaeologist
08:41 PM CaptHindsight: https://www.menards.com/main/tools/power-tool-accessories/circular-saw-blades-accessories/c-10082.htm?queryType=storeItems&Spec_Diameter_facet=7-1%2F4+inch&Spec_MaterialCut_facet=Plastic heh, how can these 3 different blades all be for "plastic"?
08:42 PM CaptHindsight: 20 vs 150 teeth
08:42 PM andypugh: There are many “plastics” from Tufnol to LDPE
08:42 PM CaptHindsight: lower melt temp, softer
08:42 PM andypugh: At $0.99 does it matter? Buy both.
08:43 PM CaptHindsight: vs bakelite, hard and fractures easily
08:43 PM CaptHindsight: after mail in rebate which will arrive sometime around xmas
08:44 PM XXCoder: i love how bakelite looks
09:16 PM _unreal_: YAY I found the molex foot print Ineeded
09:16 PM _unreal_: making a PCB
09:21 PM XXCoder: your hobby cnc?
09:33 PM _unreal_: I'm making a PCB to drive these mini vacuum pumps. they have +v, -v, pwm input, techo output
09:33 PM _unreal_: I just need to power them for now
09:33 PM _unreal_: and control them on/offfffffffffffffffffffff
09:33 PM _unreal_: arg... doing 2gigs of software updates right now
09:34 PM _unreal_: fedora
09:34 PM _unreal_: done finally yay I'm updated
10:34 PM skunkworks: bought a rough pixel xl.. I like it so far.
10:34 PM skunkworks: the camera is the best I have ever had..
10:35 PM skunkworks: (although all my phones were older.. ;) )
11:11 PM skunkworks: my youtube quality will increase by 10 fold...
11:58 PM XXCoder: heh
11:58 PM XXCoder: had fun with AW bug and black 2.0
11:59 PM XXCoder: AW mug*
11:59 PM XXCoder: it now looks like its filled with soda