#linuxcnc Logs

Oct 30 2017

#linuxcnc Calendar

01:38 AM PlasmaguyBob: OK, so I guess I lost my history here. Hopefully someone is not yet asleep and can answer this quick question. I'm planning to setup our plasma cutter using Mesa controllers. I'm looking at the 7193 Ethernet anything board. I need to have THC control for the z-axis. Can I do everything with this one board or do I need to add a daughter card? If yes, what should I use? OR, will I be better off with a different combination of bo
02:13 AM IchGucksLive: morning from germany
02:14 AM IchGucksLive: PlasmaguyBob: still online ?
02:14 AM PlasmaguyBob: yes
02:14 AM IchGucksLive: hi i own more then 5 plasmas
02:15 AM IchGucksLive: i think you are going with a 7i92
02:15 AM PlasmaguyBob: wow, great
02:15 AM IchGucksLive: where in the world are you
02:15 AM PlasmaguyBob: I'm in the Philippines
02:15 AM IchGucksLive: Krempel: guten morgen von zweibrücken
02:16 AM IchGucksLive: PlasmaguyBob: you need a breakoutboard for the eth
02:16 AM IchGucksLive: PlasmaguyBob: you can go very cheep
02:17 AM IchGucksLive: or do a change from 7i92 -> 7i76e
02:17 AM PlasmaguyBob: ok, do I need to add a breakout as a daughter card to the 7i92?
02:18 AM IchGucksLive: the cheep woudt be 7i92 and 2 of the http://www.ebay.co.uk/itm/331632334051
02:18 AM IchGucksLive: this are the breakouts it is 5USD in china
02:18 AM IchGucksLive: one woud also do the job
02:19 AM IchGucksLive: but you are triggi on inputs
02:19 AM IchGucksLive: if you only plan THC then its ok
02:19 AM IchGucksLive: it has 5 inpits
02:20 AM IchGucksLive: PlasmaguyBob: what plasma do you got
02:21 AM PlasmaguyBob: ok, I'm really new to all of this and I'm trying to get a grip on how to set this up. So, do I use a 7i92 and add the breakout to that for the thc?
02:21 AM IchGucksLive: thats why we are here to help 24/7
02:22 AM IchGucksLive: the 7i92 has 2 connectors that can drive multiple cards
02:22 AM PlasmaguyBob: hmm, homebuilt table, using candcnc hardware that I want to replace
02:22 AM PlasmaguyBob: gecko drives
02:22 AM IchGucksLive: so you can add things of your choice
02:23 AM IchGucksLive: WHY gecko
02:23 AM IchGucksLive: use the leadshine
02:23 AM IchGucksLive: or if you got budget go CLOSED
02:23 AM IchGucksLive: PlasmaguyBob: is there a ebay in philipines
02:23 AM PlasmaguyBob: my partner built it, he chose them because they seem to be known to be good, are they not good steppers?
02:24 AM IchGucksLive: there are mutch cheeper ones
02:24 AM PlasmaguyBob: I don't think ebay has a site here
02:24 AM PlasmaguyBob: I don't think 'cheap' is the most important thing, something in the middle is ok
02:25 AM IchGucksLive: this is the pilipines BOB https://www.ebay.com/itm/5-Axis-CNC-Breakout-Board-with-Optical-Coupler-for-MACH3-Stepper-Motor-Driver/191812777725
02:25 AM IchGucksLive: look here http://stores.ebay.com/Rattmmotor/CNC-Controller-kit-/_i.html?_fsub=8014442011
02:26 AM PlasmaguyBob: OH WOW, seriously?? That is really a CHEAP price, I will be checking on that more!
02:28 AM IchGucksLive: this will fit a parport mashine
02:28 AM PlasmaguyBob: OK, I just noticed, that first link says they DO NOT ship to the Philippines, from Hong Kong, what's up with that??
02:28 AM IchGucksLive: or via the 7i92 the eternet save EMI plasma
02:28 AM IchGucksLive: PlasmaguyBob: look here https://www.ebay.ph/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=closed+loop+hybrid&_sacat=0
02:29 AM IchGucksLive: there is a philipines EBAY https://www.ebay.ph
02:30 AM IchGucksLive: PlasmaguyBob: PLEASE look yourself for Hybrid Closed loop 4.5Nm or 8Nm
02:31 AM IchGucksLive: somthing like this http://www.ebay.ph/itm/2Phase-Closed-loop-Hybrid-Servo-Stepper-Motor-Drive-Kit-NEMA34-12Nm-8-5Nm-4-5Nm/112341354308
02:31 AM PlasmaguyBob: I will check those. I see that some of these state that they are mach3 boards, will they all work with LCNC, or do I have to be careful to pick ones that state that?
02:32 AM IchGucksLive: yes they will work with all cnc software as mach3 is the standard
02:34 AM PlasmaguyBob: ok, I'm still learning here, what/how are these hybrid stepper/servo units different? I have steppers, do I need to be using servos, will that be better in some way?
02:34 AM IchGucksLive: they do not loos a step and do 10times + faster
02:35 AM IchGucksLive: they use internel control
02:35 AM PlasmaguyBob: ok, what about the issue of place of manufactor? China vs US vs ??
02:35 AM PlasmaguyBob: manufacture
02:36 AM IchGucksLive: there are most from china
02:36 AM IchGucksLive: therefor i said you need to lok yourself as we are presented only the parts in hour country as im in germany
02:37 AM PlasmaguyBob: do I need to change the z-axis for doing the torch and leave the others the same?
02:37 AM IchGucksLive: here is a EQUAL Stepepr kit http://www.ebay.ph/itm/USA-Stock-4-Axis-Nema23-Stepper-Motor-425oz-in-Dual-FMD2740C-Driver-USBCNC-Kit-/263273276765
02:37 AM IchGucksLive: NO build it like a Standard 3Axis router
02:38 AM PlasmaguyBob: you have 5 units all using the china units? have they been working good and reliably for you?
02:38 AM IchGucksLive: PlasmaguyBob: like this cabinett http://heimwerkermarkt-tretter.de/4A_cab.jpg
02:39 AM IchGucksLive: i got around 200m ashines setup on this bob and they work well BUT plasmas are different
02:39 AM IchGucksLive: as they produce Noice EMI and there are side power flotes
02:40 AM PlasmaguyBob: do you have any plasmas?
02:40 AM IchGucksLive: 4 in shop and 3 in education
02:40 AM PlasmaguyBob: I see that the Rattm's from the US are also Chinese built LOL :)
02:40 AM IchGucksLive: scroll down here http://www.schweden-feuer.de/feuersauelen.htm
02:41 AM IchGucksLive: this is my Youtube info Channel https://www.youtube.com/channel/UCmwhCL92ZQRSVqFe3jGwJSQ/videos PlasmaguyBob
02:42 AM IchGucksLive: PlasmaguyBob: the cheep tb6600 will also work but not as you want
02:42 AM XXCoder: forget tb6600 thosw suck
02:42 AM XXCoder: tb6560 cost barely more and 100 times better
02:42 AM IchGucksLive: http://www.ebay.ph/itm/Newest-4A-TB6600-Single-Axis-Stepper-Motor-Driver-Controller-For-57BYG250H-Motor/272649652873
02:43 AM gloops: hey i just ordered a t6600 lol
02:43 AM IchGucksLive: XXCoder: the 65 are the old ones
02:43 AM gloops: yes the other way round i think XX
02:44 AM IchGucksLive: PlasmaguyBob: 350PhP
02:44 AM PlasmaguyBob: Sorry to hear that <gloops> ;)
02:44 AM gloops: its only for using on loose test motor
02:44 AM IchGucksLive: PlasmaguyBob: if you choos Stepeprs go for M542Dq
02:44 AM PlasmaguyBob: ok, so I will look hard at both of those to see the differences
02:45 AM XXCoder: i had tb6600s. it was real shitty
02:45 AM PlasmaguyBob: who makes the M542Dq steppers?
02:45 AM XXCoder: so I got tb6560s it was way better
02:46 AM IchGucksLive: xc agree depensd on steppers
02:46 AM IchGucksLive: biut there are designed to Nema17
02:46 AM IchGucksLive: i got 4 pices tb6560 here in the room
02:47 AM PlasmaguyBob: I guess since the tb6600s are so cheap you really haven't lost, just some experimental time. :)
02:48 AM gloops: in what way was the tb6600 shitty?
02:48 AM IchGucksLive: PlasmaguyBob: the M542 are a Black box
02:48 AM IchGucksLive: PlasmaguyBob: as so many thy to copy them
02:48 AM PlasmaguyBob: MAGIC CNC Mashines can live off of Youtube ;) haha
02:48 AM IchGucksLive: its 6USD a Year no way
02:49 AM XXCoder: gloops: it couldnt run my nema23 smopothly at all
02:49 AM PlasmaguyBob: LOL
02:49 AM XXCoder: there is mods to fix that
02:49 AM IchGucksLive: you need 500.000 hits a month to get some money
02:49 AM XXCoder: but i wasnt impressed at all so I tried tb6560s. way better
02:49 AM IchGucksLive: XXCoder: did you mpr the 1000pf to 150pf
02:50 AM IchGucksLive: Modified
02:50 AM IchGucksLive: the Redboards are easyer to mod then the blue ones XXCoder
02:51 AM gloops: ive got DM542A s on my router at the moment
02:51 AM gloops: superior chinese hardware
02:51 AM IchGucksLive: but the new blue ones got a better performance as new chip design
02:51 AM IchGucksLive: gloops: this are real leadshines the A
02:52 AM IchGucksLive: the M542dq is only a tb6668
02:52 AM gloops: wellthey seem ok to me - max volts 50 though
02:52 AM XXCoder: mine is blue type
02:53 AM IchGucksLive: the Pf is under the hood on this
02:53 AM IchGucksLive: so you need to open all
02:54 AM PlasmaguyBob: do any of you think there is any chance I could use some of the parts I have from candcnc? Maybe the UBOBIII breakout board or the THC controller?
02:54 AM IchGucksLive: with modified they are silent no noice at all
02:54 AM gloops: probably better off buying a complete kit, often works out cheaper than sourcing each bit
02:54 AM IchGucksLive: PlasmaguyBob: make a image so we can tell
02:55 AM IchGucksLive: gloops: on philipines he might not get that choice we got
02:55 AM gloops: true Ichs
02:56 AM IchGucksLive: gloops: and the real crap is not send to the US or Europ
02:56 AM PlasmaguyBob: let me see if I can get the pics off this phone
02:56 AM gloops: yes to be fair the chinese seem very keen to impress the western consumers
02:56 AM IchGucksLive: PlasmaguyBob: uploa it to http://pasteall.org/pic/
02:56 AM gloops: some have thousands of feedback and not many bad ones
02:57 AM IchGucksLive: gloops: the mashines from us ar sold to them
02:58 AM PlasmaguyBob: give me a couple of minutes, I
02:58 AM PlasmaguyBob: I'm moving pics from phone to desktop
02:58 AM IchGucksLive: PlasmaguyBob: this is the lowest you can go http://heimwerkermarkt-tretter.de/3achs_elek.jpg
02:58 AM IchGucksLive: it will drive the plasma
02:59 AM IchGucksLive: PlasmaguyBob: what size is your table
02:59 AM IchGucksLive: water or free burn
03:00 AM PlasmaguyBob: it's 5'x10', water table
03:00 AM IchGucksLive: then you need real Hardware
03:00 AM IchGucksLive: if you can Afford it go for the 8Nm Hybrid closed on 60V
03:01 AM IchGucksLive: you will be sadisfied
03:02 AM IchGucksLive: PlasmaguyBob: 3 of this power uninits http://www.ebay.ph/itm/400W-60V-6-7A-Single-Output-Switching-power-supply-AC-to-DC-SMPS/251915172070
03:02 AM PlasmaguyBob: smh why won't this LCNC linux OS not mount my android phone!!!
03:04 AM PlasmaguyBob: ok, so I need to find out if shipping to Hawaii is cheaper than to here from china :D
03:05 AM IchGucksLive: PlasmaguyBob: AS we dont know your situation
03:06 AM IchGucksLive: is 10000PHP a real number that burns your budget
03:06 AM PlasmaguyBob: I have a friend in Hawaii for this week, will come back next week :D
03:06 AM PlasmaguyBob: hmmm, that's about $200 US, I'm not sure, willhave to check
03:08 AM PlasmaguyBob: I'm using this Debian os that LCNC is shipped on, anyone have an idea why it's not mounting my usb phone??
03:09 AM IchGucksLive: is the usb phone set to connect via image folder
03:09 AM IchGucksLive: PlasmaguyBob: FULL KIT https://www.ebay.com/itm/3-Axis-NEMA23-stepper-motor-425Oz-in-Dual-shaft-DC40-2740C-Driver-CNC-Router-Kit-/253212194448
03:09 AM PlasmaguyBob: I've tried media device and USB storage
03:11 AM PlasmaguyBob: I'll have to look for that one somewhere else, not sure why it says they DO NOT SHIP TO PHILIPPINES
03:12 AM IchGucksLive: ok im off Garden LATER PlasmaguyBob im always here at 7pm Berlin Timezone
03:13 AM PlasmaguyBob: ok, I will probably be back in a day or so as I try to figure all this out, thanks
03:16 AM Deejay: moin
05:39 AM jthornton: morning
06:10 AM nullifier: alright whos got the skinny on the ACS black box servo drivers
06:10 AM nullifier: and why the hell they need both encoder and hall
06:36 AM archivist: hall is a sign of ac servo
06:36 AM archivist: get driver into the right phase
09:12 AM gloops: all quiet on the western front
09:14 AM Jymmm: ... but chaos and anarchy rule the east! WOOHOO
09:15 AM gloops: probably just in the place my ballscrews are too
09:17 AM Jymmm: if you get a package with blood dripping from it, you'll know for sure and have a nice souvenir
09:23 AM gloops: any kind of package would be welcome, ive been buying for 2 months and the only thing that came was 1 tb6600 driver
09:26 AM archivist: I make sure the seller claims to be uk based usually
09:29 AM gloops: should have known it sounded too good to be true
09:31 AM archivist: hmm collect only hampshire :)
09:34 AM gloops: actually the date of purchase was oct 11th, still plenty of time
09:34 AM gloops: just seems longer
09:54 AM Todd_Z: I usually try to keep my ebay purchases on the same continent when ever possible.
09:59 AM ecstasy: good old archivist
10:16 AM Jymmm: Eh, I'll buy from china knowing it takes up to 60 days on avg, but I keep the purchases at a "minimal risk" (cost wise) till I know the seller's reputation, or has excellent feedback AND great communications. Ask them a simple question, see how long it takes them to get back to you and what they say. That will tell you a LOT about the seller.
10:18 AM ecstasy: China is amazing
10:20 AM ecstasy: If I could just go back in time I would have just bought a cheap chinese machine
10:20 AM ecstasy: I would actually be cutting right now
10:21 AM ecstasy: instead each and every day I lament my decision and the state of financial ruin it left me in
10:49 AM archivist: hmm yetanothernick must be polyputthekettleon again
10:55 AM ecstasy: So I bought this old ass mill, been trying to convert to CNC anyone done this
10:57 AM archivist: many
10:59 AM SpeedEvil: Many more have tried.
10:59 AM SpeedEvil: Some of them died.
11:10 AM Vitran: ecstasy, what model is the ass mill and how much are you going to shove into it?
11:46 AM gregcnc: hah i didn't know about this. https://youtu.be/8I5P-r4ogm4?t=2m31s
11:51 AM sync: flat glasses?
11:51 AM sync: pretty old tech tho
11:52 AM gregcnc: the google translate image app
11:56 AM SpeedEvil: yeah - it's handy
12:06 PM ecstasy: very interestijng tool, thank you for the link
01:00 PM tjtr33: does dewey garrett come in here? ( sorry cant find the 'last seen' command )
01:01 PM archivist: sometimes in the dev channel for a few seconds
01:01 PM tjtr33: thx
01:05 PM archivist: !seen dgarr
01:05 PM the_wench: last seen in #linuxcnc-devel 2017-10-15 16:25:26GMT 361:10:30 ago, saying 8190629 worked on my test -- thanks
01:06 PM tjtr33: bang seen thx!
01:07 PM archivist: exclamation mark
01:13 PM gloops: whats the topic tonight then
01:27 PM IchGucksLive: hi all
01:28 PM miss0r: hey IchGucksLive. Did you survive the fresh winds?
01:28 PM IchGucksLive: ecstasy: you shoudt go with the new system as Hybrid servo stepers to conversion
01:28 PM IchGucksLive: miss0r: yes
01:29 PM IchGucksLive: miss0r: it is now getting winter tonight we expect below zero
01:29 PM miss0r: hehe. it surprises me every year
01:29 PM IchGucksLive: did make the garden ready today
01:30 PM miss0r: I should do that too soon :] I completed the project for my cnc guy: http://picpaste.com/IMG_20171030_185721-BqN9GBsn.jpg
01:30 PM IchGucksLive: we will see nice days sunny but cold frosty night
01:31 PM IchGucksLive: miss0r: spindle control
01:32 PM miss0r: Actualy its a stepper control. that just runs back and forth, between two inductive end-stops. you can turn that function on/off with the first button, then you have a manual jog with the sec knob, and lastly the speed of the stepper on the potmeter
01:33 PM IchGucksLive: like a camera control slide
01:33 PM miss0r: also, with nice ramp up/down function in there :]
01:33 PM miss0r: I guess
01:34 PM miss0r: It contains 130 lines of arduino(looks like c) code. It took me an entiere day to program it... i've become rusty
01:34 PM IchGucksLive: i did that once with lego
01:35 PM miss0r: hehe. I used to be a lego fan. I still am - but now i'm kicked back down to dublo state. (my son is almost 2 years old, the small legos would be eaten for sure)
01:36 PM gloops: slightly sceptical of some of these online deflection calculators
01:36 PM gloops: https://www.easycalculation.com/engineering/mechanical/deflection-solid-rectangular-beams.php
01:37 PM gloops: 20mm steel plate has 3mm deflection, ally has .000004
01:38 PM archivist: get a copy of Roark's formulas for stress and strains W. Young McGraw Hill 1989
01:39 PM hazzy: +1 on that, Roark's formulas are very handy!
01:39 PM archivist: must ask for my other copy to be returned
01:39 PM archivist: teh bible!
01:40 PM hazzy: Especially the ones for stress concentrations, very handy indeed!
01:40 PM gloops: well, i probably wont take it to that level, just looking as a rough guide to compare materials
01:40 PM IchGucksLive: so tomorrow is halloween around the world
01:40 PM archivist: gloops, it is mainly shape not the material
01:40 PM gloops: i think fibreglass would do as good as aluminium
01:41 PM archivist: compare modulus of elasticity
01:41 PM miss0r: IchGucksLive: I have no idea why that has migrated over seas. The commercial world must have thought 'Hey, we can make more money that way'
01:41 PM gloops: archivist they all use ally plates for Z axis - very strong configuration
01:41 PM IchGucksLive: miss0r: agree
01:41 PM archivist: then look at stiffness v shape
01:42 PM archivist: once you understand Roarkes, you realise how bad some designs are
01:43 PM gloops: well, a plate is never going to bend in the y direction
01:43 PM miss0r: I've been thinking of making a sign saying 'trick or treaters will be shot on sight', and place it on the front lawn. I guess that adds to the halloween scare? :D (only, i'm not joking :D )
01:44 PM IchGucksLive: miss0r: to many grandchilds her to get away
01:44 PM archivist: everything bends, it is just the amount
01:45 PM gloops: i doubt the force a stepper motor can apply would move a 20mm plate to anything that matters
01:45 PM IchGucksLive: depends on stepper
01:45 PM gloops: i think the plates method also keeps the axis tucked into the gantry - this will reduce leverage
01:46 PM gloops: rather than having it stuck forward - which puts more leverage on the Y bearings
01:47 PM IchGucksLive: Y axis gantry up to 2meters are 90x90mm Al profile
01:47 PM gloops: one peice of 90x90 Ichs?
01:47 PM gloops: or one for each linear bearing?
01:47 PM IchGucksLive: depends on use
01:47 PM IchGucksLive: plasma yes
01:47 PM IchGucksLive: mill no
01:48 PM IchGucksLive: http://www.tecwalker.com/aluprofile.html
01:48 PM IchGucksLive: http://www.tecwalker.com/aluprofile-baureihe10-typ1.html
01:49 PM archivist: I can measure the bend in 2 inch bar with my little finger pressing on it, bar is effectively 6 inches long
01:49 PM archivist: the flex is where machine chatter comes from
01:50 PM gloops: well lots of tubes the bend is obvious when trying to surface them in the lathe
01:50 PM IchGucksLive: massive block bend more then konstruction AL
01:50 PM gloops: the ally profiles are very good
01:51 PM IchGucksLive: i use most 45x45 heavy
01:51 PM gloops: ive got a peice about 10ft long, came from some kind of door opening system, unfotunately i cannot see any way to mount bearings to it because of the shape
01:52 PM gloops: very flat and straight and rigid
01:52 PM IchGucksLive: gloops: if it got mounting T there are bearings to fit them
01:53 PM gloops: nothing at all, would be a pain to fix to sides as well, pity, its got two kind of flatted circle shapes running it for rollers i think
01:54 PM gloops: like bif U rollers
01:54 PM gloops: big
01:54 PM IchGucksLive: the thailand king has been bairrid this wek with SBR200 rails
01:55 PM gloops: sbr 200?
01:55 PM IchGucksLive: week sbr20
01:55 PM IchGucksLive: as they moved things around on them
01:55 PM gloops: ahh, yeah 20mm should be strong enough
01:57 PM gloops: what is this in engineering terms? -
01:57 PM gloops: 7.112e-7
01:57 PM IchGucksLive: Wpx or Y
01:57 PM IchGucksLive: 0,0000007112
01:58 PM gloops: it comes up on this calculator
01:58 PM gloops: ahh thanks
01:58 PM IchGucksLive: today the Humens hit a max on gas used it has been 15Bilion gallens
01:59 PM IchGucksLive: a single day
01:59 PM gloops: too many people
01:59 PM IchGucksLive: to many cars
02:00 PM gloops: should stick to localism
02:00 PM gloops: once ive got my cnc kit
02:00 PM IchGucksLive: like arnold said Rail between LAx and SFA wudt save 1.000.000 gallons a day
02:01 PM IchGucksLive: woudt
02:01 PM IchGucksLive: fresno freeway traffic jam
02:02 PM gloops: it will be ok theyll develop anti-matter engines
02:02 PM IchGucksLive: the biggest fuelburner per day even on mumbai traffic
02:02 PM IchGucksLive: hyperloop one#
02:14 PM nallar is now known as Ross
02:18 PM IchGucksLive: im off hard day
02:18 PM IchGucksLive: Gn8 from cold germany
02:52 PM JT-Shop: is the only hurdle to using LinuxCNC on a RPi3 making a real time kernel for the arm v7L?
03:04 PM Tom_L: lazy monday
03:04 PM _methods: https://www.youtube.com/watch?v=RUjH14vhLxA
03:05 PM _methods: spacex launch
03:08 PM * JT-Shop watches the video :)
03:15 PM gregcnc: that's still mind boggling
03:16 PM Tom_L: not as exciting as when i watched apollo
03:17 PM Tom_L: better cameras
03:17 PM gregcnc: I bet. space was new
03:19 PM Tom_L: had a more human aspect to it
03:23 PM CaptHindsight: JT-Shop: not sure if the SPI driver that works well is in the kernel tree or in someones GIT somewhere
03:25 PM JT-Shop: do you have to use the SPI driver? or can you use the ethernet port with a 7i76E or 7i92?
03:25 PM CaptHindsight: JT-Shop: we built from scratch, on the Ethernet issue the Rpi3 has it on USB vs integrated into the SOC
03:25 PM CaptHindsight: so Ethernet over USB is not real time
03:26 PM JT-Shop: well crumb
03:26 PM JT-Shop: what is SOC?
03:26 PM sync: system on chip
03:26 PM JT-Shop: ok
03:27 PM CaptHindsight: the ARM boards with integrated Ethenet are the Allwinner, IMX6 and I ...... forget the other
03:28 PM CaptHindsight: the imx6 has open gpu drivers so it can support both a high def 30+ fps GUI and real time over ethernet
03:29 PM CaptHindsight: yeah, SOC = system on chip
03:29 PM sync: pff allwhiner
03:30 PM CaptHindsight: jepler had it working on a Samsung ARM soc board over SPI to FPGA
03:32 PM CaptHindsight: allwinner doesn't have open gpu drivers (Mali)
03:33 PM CaptHindsight: but we had Axis running pretty well using the the extra cpu cores (software rendering)
03:34 PM CaptHindsight: and LCNC over Ethernet to a Mesa FPGA
03:34 PM JT-Shop: cool
03:36 PM CaptHindsight: if you follow that Rpi3 thread you should be able to get it working
03:36 PM JT-Shop: on the forum?
03:37 PM CaptHindsight: user mail list
03:37 PM JT-Shop: crumb I don't save them or have time to read them all :(
03:37 PM CaptHindsight: the main issue was just inexperience with building linux and kernels and typos
03:37 PM CaptHindsight: yeah, no easy 1, 2, 3 howto out there
03:41 PM CaptHindsight: https://github.com/tinkercnc/spi-fpga-driver ??
03:42 PM JT-Shop: I've built a bunch of kernels for a regular pc
03:42 PM skunkworks: JT-Shop, sourceforge has the list history
03:42 PM JT-Shop: that must be what Gene is using on his lathe I think
03:43 PM CaptHindsight: JT-Shop: didn't want to name names
03:56 PM gloops: dark at 5pm now, clocks went back
03:57 PM gloops: thats it while march
04:01 PM CaptHindsight: we don't here until this weekend
04:02 PM nallar is now known as Ross
04:03 PM gloops: been a bit deceiving this year, weather has been good, didnt seem like winter was coming
04:04 PM CaptHindsight: there's a newer thread on the ML about EtherCAT and Linuxcnc
04:08 PM CaptHindsight: I skimmed through https://github.com/rene-dev/stmbl ...
04:10 PM CaptHindsight: is this just a DIY project or is or will there be industrial hardware for this?
04:11 PM XXCoder: cnn: manafort. Msnbc: manafort. Fox: hamburger emoji
04:12 PM sync: CaptHindsight: yes and maybe
04:12 PM CaptHindsight: sync: keep and eye on the wiki for the best info?
04:13 PM CaptHindsight: or?
04:13 PM sync: well, what do you mean with industrial hardware?
04:14 PM CaptHindsight: drives equal to the reliability of something by AB, Parker, etc etc
04:15 PM sync: there is no reason why they would not last as long
04:15 PM sync: there are only two electrolytic caps on there
04:26 PM CaptHindsight: power supplies are external, have to look at it more later
04:27 PM gregcnc: hmm after updating the mill to 2.7 pre a while ago I would get a random realtime delay. Never seemed to cause any trouble with parts until today.
04:28 PM gregcnc: of course as I'm trying to finish a job
04:28 PM CaptHindsight: hmm it should only happen on Fridays when you want to leave early
04:29 PM gregcnc: well i didn't get this far on friday
04:29 PM CaptHindsight: same hardware different kernel?
04:29 PM gregcnc: yes
04:31 PM CaptHindsight: do you really need the 2.7pre version?
04:31 PM rene-dev: CaptHindsight: oldest setup I know of has been running for about 2 years now, with no issues
04:32 PM gregcnc: base period is 50% more than latency test results. I'll try increasing base and limiting rapids to get through the job, then update to current stable
04:32 PM CaptHindsight: gregcnc: go back and use older version, use current version with longer real time thread,
04:41 PM CaptHindsight: you never know what a different kernel is going to do until you try
04:45 PM CaptHindsight: the once a day or so delays are the biggest pain
05:11 PM gregcnc: realtime delay seems to happen on the first rapid Z move. I reduced rapids and accels to 10% of what they were with no change
05:17 PM Deejay: hmm, you may consider to not move at all ;)
05:32 PM Jymmm: gregcnc: Try 50% aand see if that makes a difference, Then up to 75% etc, just keep halfing
05:34 PM gregcnc: i was down to 10% of orig so i didn't see much hope. i've pulled the box to do the update
05:40 PM CaptHindsight: kernel too generic and this happens, kernel too specific and everyone needs a different kernel
05:41 PM CaptHindsight: gregcnc: out of curiosity, what cpu and chipset?
05:41 PM gregcnc: it's old so I'm not going to complain until I update
05:42 PM Deejay: gn8
05:42 PM CaptHindsight: https://www.youtube.com/watch?v=24LftGNp4MI machine is complaining about justin
05:43 PM CaptHindsight: don't make me please noooooo :)
07:43 PM SpeedEvil: http://logosfoundation.org/instrum_gwr/snar2.html CNC drums.
08:26 PM andypugh: Does anyone know of a cheap, analogue, level sensor for coolant?
08:27 PM andypugh: I can find any number of switches, but nothing that measures level.
08:28 PM andypugh: I fitted one of these, but it doesn’t actually seem to work with coolant.
08:28 PM andypugh: http://www.ebay.co.uk/itm/Water-Level-Sensor-Module-Depth-Of-Liquid-Or-Raindrop-Rain-Height-Arduino-Pic-Pi/132165142344?hash=item1ec5a80748:g:GSwAAOSwJ4hY-JEL
08:28 PM andypugh: (I have an ultrasonic module, not triied it yet)
08:29 PM andypugh: But something like a car fuel tank sensor with a potentiometer would be better. But all the actual car fuel tank sensors are top-mount.
08:29 PM malcom2073: Oh man, I stumbled across one the other day
08:29 PM malcom2073: It was a float on a shaft, went up and down the shaft and had a potentiometer
08:29 PM malcom2073: lemme see if I can find it
08:33 PM malcom2073: Hmm can't find it
08:33 PM malcom2073: I wonder if you can do it with a pressure tranducer
08:33 PM evilroot: https://www.amazon.com/LENGTHS-INTO-DROP-DOWN-LIST/dp/B00Y831JAK/ref=sr_1_20_sspa?ie=UTF8&qid=1509411626&sr=8-20-spons&keywords=fuel+level+sensor&psc=1
08:33 PM malcom2073: Yeah that sort of thing
08:34 PM evilroot: Standard sensors don't work because oil isn't conductive the way water/etc is
08:35 PM evilroot: Any fuel level sensor that uses a float
08:35 PM evilroot: Will work
08:36 PM andypugh: That one on Amazon is too expensive, but has made me realise one thing: I have been rejecting all two-wire sensors, but it seems that the variable-resistance ones might be two-wire too.
08:36 PM evilroot: https://www.amazon.com/Dorman-911-013-Fuel-Level-Sensor/dp/B0075D0U5A/ref=sr_1_7?ie=UTF8&qid=1509411626&sr=8-7&keywords=fuel+level+sensor&dpID=41QQLmqzACL&preST=_SX300_QL70_&dpSrc=srch
08:36 PM evilroot: They are
08:40 PM andypugh: I guess this would do the job too. alarm for low and alarm for “stop pouring” https://www.ebay.co.uk/itm/Water-Level-Sensor-Dual-Float-Balls-Stainless-Steel-Floating-Switch/263154752039?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D48784%26meid%3Dd42c6d56877f401784ea768145eba0bd%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D272793758916&_trksid=p2047675.c100005.m1851
08:42 PM evilroot: Might not actually
08:42 PM andypugh: Wel, I think the balls might not be close enough together. I have a wide shallow coolant tank.
08:53 PM andypugh: Logging out time.
09:33 PM RyanS1: o/
10:20 PM evilroot: andypugh: THAT'S WHAT SHE SAID
10:20 PM evilroot: Damn too late
10:54 PM hazzy: evilroot: Too bad you were a bit late on that!
11:02 PM evilroot: Yep