#linuxcnc Logs

Nov 04 2018

#linuxcnc Calendar

01:29 AM gloops: right, 10 months since i started building this router, success was followed by distraction after distraction, i need to get back on this, focused, keen, alert, industrious
03:37 AM Deejay: moin
03:43 AM gloops: sunday checklist, grind planer blades, grind cutter shaft down, deal with riser problem on bandsaw
03:43 AM gloops: then after dinner...
04:01 AM jthornton: morning
04:25 AM jthornton: damn internet is slow as frozen molasses lol
05:36 AM gloops: so after taking numerous angles on the planer blade sharpening, i finally settled on a slit in a piece of wood to hold it lol
05:36 AM gloops: after i put my cross vice back together...
05:37 AM jthornton: the William Ng method?
05:38 AM jthornton: I've managed to find a 15" planer finally and will collect it tomorrow... it's only 4 hours drive each way
05:39 AM gloops: yeah something along the lines of the vid you posted jthornton
05:40 AM gloops: ill see if i can get something on phone when i try it in a bit
05:40 AM gloops: 15inch planer is substantial
05:40 AM jthornton: yea a lucky find for sure
05:40 AM jthornton: got a hold him as soon as I saw it
05:41 AM gloops: an old cast one went locally for about £60 last week, but really heavy and not very wide cut - a lot of machine to plane spars
05:41 AM gloops: probably brilliant for that though
05:42 AM jthornton: I missed one a few months back by one day lol
05:42 AM gloops: price of boards starts multiplying as they get above 8-10 inch
05:43 AM jthornton: my neighbor can cut up to 22" wide on his bandsaw mill IIRC
05:43 AM gloops: i dont know what the market for boards is there but would cost a lot of money here for 22 inch boards
05:45 AM jthornton: I'm in the middle of huge hardwood forest with lots of processing plants for hardwood flooring, lucky for me my neighbor has large track of timber about 40 miles from here
05:46 AM gloops: https://www.travisperkins.co.uk/Hardwood-Planed-Timber-All-Round-Red-Grandis-25mm-x-50mm/p/607996
05:47 AM gloops: 2x1 stick 11 of those together, at £6 a meter, £66 a metre for 22x1 lol
05:47 AM gloops: but as 1 board - double that easily
05:48 AM jthornton: that is pricy for sure
05:49 AM jthornton: when I finish the louver vents I need to make a couple of tilt out windows
05:51 AM gloops: last place i went for oak i went into the reception, just said i want some oak boards about 12 inch wide - bloke called a woman a woman to make me a coffee and tried sitting me down in a leather chair lol, i said whoa, i just want to buy a few pieces of wood
05:51 AM jthornton: trying to butter you up lol
05:51 AM gloops: preparing for the shock
06:01 AM gloops: https://www.facebook.com/marketplace/item/278809742748527
06:01 AM gloops: thats a big one
06:02 AM MarcelineVQ: dang son, comes with a steady
06:03 AM jthornton: dang pouring down rain the chickens are on their own this morning
06:11 AM Tom_L: jthornton did your gate timer switch over like it was supposed to?
06:12 AM jthornton: yea, it just opened about 10 minutes ago
06:12 AM Tom_L: looks like you _are_ gettin a little wet
06:13 AM Tom_L: we got a few sprinkles last evening
06:13 AM jthornton: I stepped out into the Florida room and it was pouring down rain...
06:14 AM jthornton: did you see the louver vent?
06:14 AM Tom_L: yeah looks good
06:14 AM jthornton: thanks
06:14 AM jthornton: should finish the second one today
06:15 AM Tom_L: you were still working on it when i saw it
06:15 AM jthornton: first one is painted just needs screen and hardware cloth attached
06:17 AM Tom_L: did you set up a wood shop in your new building?
06:20 AM jthornton: yea sorta squeezed some machines in there
06:28 AM jthornton: I had a crappy tablesaw for years and finally got a nice one a while back then you see you need this then that and it never stops lol
06:32 AM Tom_L: well hey, if you got space to fill you gotta fill it
06:34 AM jthornton: filling it with wood chips at the moment lol
06:34 AM Tom_L: fire starter
06:35 AM Tom_L: your cyclone work pretty good?
06:36 AM jthornton: yea it catches most of the sawdust from the tablesaw
06:38 AM jthornton: I got the one with the fiberboard drum below that collects the dust
07:07 AM skunkworks: https://www.youtube.com/watch?v=-6H_owU-Y8M
07:13 AM jthornton: just shows a !
07:19 AM skunkworks: really?
07:21 AM gregcnc: yes
07:24 AM skunkworks: oh
07:25 AM skunkworks: oops
07:26 AM skunkworks: there - should work now
07:30 AM jthornton: I wish my BP only had a thou of backlash on Z lol
07:32 AM gregcnc: looks good
08:11 AM jthornton: crap my door timer logic is too convoluted... starting again
08:16 AM gloops: well it worked...https://ibb.co/ipgehf
08:18 AM jthornton: sharpening your planer blades?
08:20 AM gloops: yeah lol, they are if nothing else, pretty damn flat
08:21 AM jthornton: got a photo of the jig?
08:23 AM gloops: i got a video if it uploads, i decided to automate it a bit lol - the 'jig' was just a slit in a piece of wood with a couple of screws in it lol, ill have to make a proper one now i know its a good method
08:25 AM gloops: https://www.youtube.com/watch?v=I2yYGMOUjjA&feature=youtu.be
08:25 AM gloops: obviously americans arent accustomed to how we do things in yorkshire LOL
08:28 AM MarcelineVQ: there's something about that 2nd screw
08:29 AM gloops: yeah i couldnt see the cordless driver
08:35 AM MarcelineVQ: heard one should be careful grinding in that direction tho, if a piece pulls under the grinder it can jam up
08:36 AM gloops: yes, this is only a very cheap chinese bench grinder though, it stops long before any fear of the wheel shattering
08:37 AM SpeedEvil: The jamming happens only on stored energy in the rotation.
08:37 AM SpeedEvil: The motor is irrelevant and the wheel can shatter dangerously even if it's off, but still nearly at speed
08:38 AM gloops: dont panic, it didnt shatter
08:39 AM gloops: at that feed rate, you arent going to get a sudden jam
09:01 AM _unreal_: sucks, the company that was going to build my cnc machine has now given up and want me to give them a build design....
09:02 AM _unreal_: well rebooting into windows
09:05 AM jthornton: hmm I think I have the logic sorted out... time to start some fires
09:44 AM jthornton: I think this will work https://paste.ubuntu.com/p/v58fFJWzsK/
09:47 AM jthornton: https://paste.ubuntu.com/p/HKDw87B9kV/
10:28 AM gloops: well thats the dovetail cutter clocked in and ready for tommorrow, shocking how much trend dovetail cutters are out, pretty certain that is chinese crap with a better paint job
10:40 AM diverdude: Anybody has an idea why this simple piece of stepper motor code does not make the stepper motor run? http://paste.ubuntu.com/p/bcwTSb5q5F/ (i have verified that all wiring is ok)
11:18 AM fragalot: diverdude: remove the .move, and also set .maxSpeed
11:19 AM diverdude: fragalot: but if i remove the move, then how will accelstepper know where to go?
11:21 AM fragalot: diverdude: it doesn't have to, you're asking it to run a constant speed;
11:21 AM fragalot: so it will just continue forever
11:21 AM fragalot: (assuming that that is what you want to do)
11:22 AM diverdude: fragalot: it is - i wanted to have it just run at constant speed
11:23 AM diverdude: fragalot: brb
11:46 AM diverdude: fragalot: back
11:49 AM diverdude: fragalot: it moving extremely slowly...but its moving....speed does not seem to change even though i set different values
12:07 PM diverdude: fragalot: are you here?
12:28 PM fragalot: diverdude: show me what you have
12:28 PM fragalot: (sorry i'm only on the pc occasionally)
12:29 PM diverdude: fragalot: i have this; https://paste.ubuntu.com/p/tDp6hSqK9N/
12:30 PM fragalot: why did you comment out .runSpeed ?
12:31 PM diverdude: fragalot: ah, sorry...i didnt actually...i just commented it out while i was waiting for you :)
12:32 PM diverdude: fragalot: this is what i have: https://paste.ubuntu.com/p/S8wwHmNGTh/
12:32 PM fragalot: did you also try to set maxSpeed ?
12:33 PM fragalot: also, there is a maximum speed you will probably be able to do, i'm not sure if the arduino can really do 10kHz stepping like you're requesting
12:33 PM fragalot: http://www.airspayce.com/mikem/arduino/AccelStepper/classAccelStepper.html#abee8d466229b87accba33d6ec929c18f <===
12:33 PM diverdude: fragalot: the weird thing is that if i use run instead of runSpeed it works fine
12:34 PM fragalot: note the default is 1.0
12:34 PM diverdude: fragalot: i tried many different values, including 1.0
12:35 PM diverdude: fragalot: speed is the same (extreeeemely slow) whether i set 1, 10 or 10000
12:35 PM fragalot: diverdude: for setMaxSpeed or setSpeed
12:35 PM jthornton: I think I smoked my RPi the core temperature is ~94C
12:35 PM diverdude: fragalot: both
12:36 PM fragalot: diverdude: I mean.. the example code for accelstepper literally says stepper.setMaxSpeed(50); stepper.setSpeed(50)
12:36 PM diverdude: fragalot: if i only call setmaxspeed and not setspeed, it does not move at all
12:36 PM fragalot: perhaps you must call setMaxSpeed first, before calling setSpeed
12:37 PM fragalot: and the manual states that > 1000 is "unreliable"
12:37 PM diverdude: huh - that did something new
12:37 PM fragalot: and it also mentions that the speed set by setSpeed is limited to the current value of setMaxSpeed -- so, setMaxSpeed must be set BEFORE setSpeed
12:39 PM diverdude: fragalot: yeah...it seems like it....it runs now when i set maxspeed before setspeed....thats really odd
12:40 PM diverdude: fragalot: so unstable above 1000....weird....it runs much faster if i set it to 5000 than 1000...i wonder how it will be unstable
12:41 PM holzjunkie1: hy @ all
12:41 PM fragalot: diverdude: no idea. I'm just reading out what the manual says.
12:42 PM holzjunkie1: is the 7i96 for standalone use or did i need an 7i80 also?
12:42 PM diverdude: fragalot: right....its really a strange api...just the fact that the motor is moving in one direction when i never instructed it to move seems pretty off to me
12:42 PM fragalot: holzjunkie1: no idea, sorry :)
12:42 PM fragalot: diverdude: *shrug* :)
12:43 PM diverdude: fragalot: what do you use to control stepper motors?
12:43 PM fragalot: you are asking it to run at a fixed speed though
12:43 PM fragalot: diverdude: linuxcnc :D
12:43 PM diverdude: fragalot: of course hehe :)
12:43 PM holzjunkie1: jthornton: is the 7i96 for standalone use or did i need an 7i80 also?
12:43 PM fragalot: otherwise i'd probably also use accelStepper if I had to use an arduino
12:43 PM fragalot: but I do know that that library could do with some work for certain things
12:43 PM diverdude: fragalot: you also use linuxcnc if motor is attached to an arduino?
12:44 PM fragalot: no, but I rarely use arduinos anymore
12:44 PM diverdude: right ok
12:45 PM diverdude: fragalot: i wonder how to move at fixed speed in opposite direction then
12:45 PM diverdude: ok...negative speed did it...lol
12:46 PM fragalot: setMaxSpeed must be a positive value, setSpeed can be both positive & negative
12:48 PM diverdude: fragalot: hmm ok, but i set maxspeed to a negative speed and it ran anyway
12:48 PM {HD}: gloops: doesn’t down cut clog cut?
12:49 PM fragalot: diverdude: perhaps they automatically make it a positive value.. manual mentions you should only use > 0
12:50 PM fragalot: who knows how correct their documentation is :)
12:50 PM gloops: {HD} no it doesnt clog, i dont know what wood work you are doing but youll probably find yourself using spiral cutters most of all
12:51 PM gloops: i havent found any noticeable better finish with compression bits, and i prefer single flute anyway
12:51 PM diverdude: fragalot: you are right
12:51 PM {HD}: gloops: I too like single flutes but mine are upcuts not downcuts.
12:52 PM {HD}: I don’t use compression bits
12:52 PM gloops: upcut is better for some materials, applications, some prefer them anyway
12:53 PM {HD}: What kind of dust collector are you running?
12:53 PM gloops: just a home made one running from a vac
12:54 PM {HD}: Neat.
12:54 PM pcw_home: holzjunkie1: 7I96 is standalone
12:55 PM holzjunkie1: pcw_home: thank you very much
12:58 PM gloops: the question that has baffled the greatest scientific minds for centuries https://www.pinterest.co.uk/pin/297870962846282708/
12:58 PM gloops: how to make new pine look old
12:58 PM fragalot: that's easy
12:59 PM fragalot: put it in storage for 50 years
12:59 PM fragalot: or in my shed for 2 minutes
12:59 PM fragalot: grinding things next to it really speeds up the aging process.. I think it's the iron particles
12:59 PM MarcelineVQ: acid,it's always acid :D
01:00 PM fragalot: sprinkle on some wood worm
01:00 PM MarcelineVQ: Happy day, my welder spewing oil turned out to be an easy fix, the dip-stick cap was loose :>
01:00 PM fragalot: MarcelineVQ: happy days
01:00 PM MarcelineVQ: But what a mess, whatever pumps the oil reallllly pumps it
01:01 PM fragalot: lol
01:01 PM fragalot: isn't it the crank shaft doing the business in that part of the engine
01:02 PM MarcelineVQ: pretty likely, the dip-tube is also the fill tube so it probabyl goes right to the crank
01:03 PM MarcelineVQ: I don't know much about that stuff, which is why it's pleasent that a fix didn't involve knowing
01:03 PM diverdude: fragalot: should this not be able to home one axis? http://paste.ubuntu.com/p/zh2Mqgprgn/
01:05 PM fragalot: what's the point of !switched in this context
01:06 PM fragalot: because if it's homed, the switched bool does nothing
01:06 PM fragalot: oh hang on i'm reading it wrong.. lemme paste that into an IDE :P
01:06 PM diverdude: fragalot: well...i want it to move in one direction until it reaches the limit switch. when reached i want it to move in the opposite direction until its again free from the limit switch
01:07 PM diverdude: fragalot: but you are right...there is something wrong because when i try to run the code nothing happens
01:07 PM fragalot: you must call stepper.runSpeed(); continuously when you want it to move
01:07 PM fragalot: as you've written it now, it can never get called
01:07 PM diverdude: fragalot: really...hmm ok
01:08 PM diverdude: fragalot: that was not my intention :)
01:08 PM fragalot: :)
01:08 PM diverdude: how would you write this?
01:11 PM gloops: wire wool dissolved in vinegar is an old trick
01:11 PM fragalot: i'd use a simple state machine probably to make the sequence easier
01:19 PM fragalot: diverdude: untested: https://paste.ubuntu.com/p/NjBCm83YVf/
01:22 PM diverdude: fragalot: hmmm nothing happens when i have uploaded it
01:23 PM fragalot: sprinkle around some if statements, see what it does or does not do
01:23 PM fragalot: printf*
01:24 PM diverdude: fragalot: You mean Serial.println ?
01:24 PM fragalot: yes
01:24 PM fragalot: put one under each of the case STATE_... lines
01:27 PM diverdude: ah it works i think :)
01:27 PM fragalot: note that this does not take into account any switch bouncing, so you'll have to figure that out from examples somewhere :)
01:32 PM diverdude: fragalot: what is switch bouncing?
01:33 PM fragalot: https://www.allaboutcircuits.com/technical-articles/switch-bounce-how-to-deal-with-it/
01:34 PM fragalot: that's probably the best article for a beginner to read
01:46 PM diverdude: fragalot: hmm ok...so some sort of specialized code in the arduino should make the homing robust towards switch bouncing?
01:47 PM fragalot: yup
01:53 PM diverdude: fragalot: ok they show a simple arduino code to handle it where they use a debounce counter that which is initialized at 10. I think they read it over a period of minimum 10ms and if its HI over the duration its considered switched
02:21 PM fragalot: that's indeed one way to do it. downside is that it takes 10ms
02:22 PM XXCoder: i once played with button debouncing, and if I recall right 1/10 seconds or longer you might feel that its lagging a little
02:22 PM XXCoder: less is better
02:30 PM SpeedEvil: depends also if you can undo a result.
02:31 PM SpeedEvil: If you're doing a 'press and hold' type thing, you can stop it at the actual stop, and then restart if it turns out you were wrong.
02:31 PM SpeedEvil: (poor example)
02:34 PM JT-Shop: hey XXCoder
02:35 PM XXCoder: hey whats up
02:37 PM JT-Shop: making the second louver vent
02:38 PM JT-Shop: my RPi is overheating for some reason and the core temperature is ~95C
02:38 PM JT-Shop: dunno what's up with that...
02:38 PM XXCoder: hope its not one of those bitcoin mining viruses lol
02:59 PM JT-Shop: I'll pull everything off of it and power it up and see if it still gets hot
03:38 PM jthornton: I pulled everything off including the sd card and the cpu still gets way hot
03:56 PM jthornton: the RPi in the coop is running at 40C and the one on my desk is now up to 92C too hot to touch lol
03:56 PM Tom_L: why so hot?
03:57 PM jthornton: beats me, the door program started acting wonky and I noticed it was super hot
03:57 PM Tom_L: no virus scan programs for those is there?
03:58 PM Tom_L: or cpu useage monitor..
03:58 PM jthornton: I took the sd card out and it still got hot dunno
03:58 PM jthornton: I think there is a cpu monitor...
04:00 PM Deejay: gn8
04:01 PM Tom_L: must take alot of cpu to open a coop door
04:02 PM jthornton: chicken power unleashed yea
04:06 PM jthornton: top says the cpu is taking a nap
04:14 PM Tom_L: must be snoring loud then
04:20 PM Tom_L: does it have a heatsink on it?
04:22 PM Tom_L: https://www.raspberrypi.org/forums/viewtopic.php?t=138383
04:32 PM JT-Shop: aye, but that's not the problem for sure... it's 50C hotter than normal
04:46 PM Tom_L: dunno, i don't have one
05:08 PM _unreal_: whats 50c hotter?
05:08 PM _unreal_: I only just came in the room
05:09 PM skunkworks: _unreal_: why reboot?
05:09 PM _unreal_: no just logged on, been doing @#$ around the house
05:10 PM _unreal_: and working on making dinner... jack dan.. beef dry rubbed ribs out on the coal grill
05:10 PM jthornton: my RPi 3 B is 50C hotter than the one in the coop and it started acting flaky
05:10 PM _unreal_: jthornton, A: does it have a heat sink
05:10 PM skunkworks: 09:01 AM _unreal_: sucks, the company that was going to build my cnc machine has now given up and want me to give them a build design....
05:10 PM skunkworks: 09:02 AM _unreal_: well rebooting into windows
05:11 PM jthornton: it's been running on my desk for a couple of months and today went bonkers
05:11 PM _unreal_: B: does it have any kind of active cooling,, C: what is the cpu load?
05:11 PM _unreal_: what is the CPU load?
05:11 PM _unreal_: if the CPU load is OK then I bet you your having power issues voltage issues
05:12 PM _unreal_: check your CPU voltage
05:12 PM jthornton: it's been running for months with no problems until today when it went flaky and stopped running correctly
05:12 PM jthornton: it gets super hot even without a OS running
05:12 PM _unreal_: WHAT is the cpu voltage?
05:13 PM _unreal_: the cpu only gets hot with high load or over volting or high amp draw
05:13 PM jthornton: how do yu tell that?
05:13 PM _unreal_: google the commands
05:13 PM _unreal_: I dont have an RPI I have an asus tinkerboard
05:13 PM _unreal_: better in every way
05:14 PM _unreal_: you may even have to install something a cpu monitor etc...
05:14 PM _unreal_: but you can view the current CPU temp, loads and power/voltage usage
05:15 PM jthornton: core temperature gets up to 94C
05:16 PM jthornton: cgencmd measure_volts core
05:16 PM jthornton: volt=1.2000V
05:17 PM jthornton: normal core temperature is ~40C
05:29 PM jthornton: ok I've measured everything that google said to do and all are perfectly normal _except_ the core temperature which is 213.234% higher than normal... now what?
05:30 PM Tom_L: maybe it's failing
05:31 PM jthornton: I think it had a coronary lol
05:33 PM jthornton: I can't see how a tinker toy is better in every way when there are no accessories made for it and requires use of media player in TinkerOS
05:33 PM Tom_L: probably isn't
05:34 PM jthornton: I would not put it in a plastic case if you do any heavy processing (and if you don't you might as well stick to the Rpi3)
05:34 PM jthornton: lol love that comment
05:34 PM Tom_L: he plans to use his for lcnc i believe
05:35 PM jthornton: wow 32% gave the tinker toy a 3 star or under rating... that ain't good
05:35 PM Tom_L: not sure where he got his info
05:35 PM Tom_L: not me that's for sure
05:36 PM Tom_L: jthornton, you're using the arm for the time libs basically right?
05:36 PM Tom_L: so you can run linux
05:36 PM jthornton: no, I'm using a python library called astral
05:36 PM Tom_L: so you can run linux
05:37 PM jthornton: arm as in RPi?
05:37 PM Tom_L: yeah
05:37 PM jthornton: yes so I can run linux
05:37 PM jthornton: and program in python
05:37 PM Tom_L: otherwise you may as well use an arduino
05:37 PM pcw_home: is it possible some of the GPIO got damaged accidentally? Do all GPIO pins still work?
05:37 PM jthornton: they proved to be too flaky for me
05:38 PM jthornton: I didn't test them much I have a toggle switch connected to a couple of inputs for manual override and they didn't seem to work
05:39 PM jthornton: not sure how to test all the GPIO pins?
05:39 PM pcw_home: maybe they got fried somehow
05:40 PM pcw_home: there must be some test software around for that
05:40 PM jthornton: could be when it went bonkers the door up switch failed to stop the motor
05:40 PM jthornton: looking
05:40 PM pcw_home: My RPI has been up running LinuxCNC/Axis since July
05:41 PM jthornton: my RPi in the coop has been up and running since... hmmm last fall
05:41 PM jthornton: https://elinux.org/R-Pi_Troubleshooting#Testing
05:42 PM pcw_home: I needed a heatsink since LinuxCNC/Axis/realtime takes a fair amount of CPU
05:43 PM jthornton: I have heat sinks on the CPU and some other chip
05:47 PM jthornton: Failed user gpios: 23 24 25 26 27
05:49 PM jthornton: I used 22, 23, 24, 26 and 27 as inputs... I wonder if somehow one got shorted???
05:59 PM jthornton: chow time...
06:11 PM Tom_L: they're 3.3v inputs right?
06:33 PM {HD}: They are 3v3
06:39 PM skunkworks: Tom_L: did you see more of my ramblings?.. https://www.youtube.com/watch?v=-6H_owU-Y8M&t=38s
06:41 PM Tom_L: saw but no sound
06:45 PM skunkworks: probaby the best
06:47 PM Tom_L: re'watching
06:49 PM Tom_L: what oiler is that?
06:53 PM skunkworks: ebay..
06:54 PM Tom_L: i likely wouldn't add one to mine anyway
07:13 PM skunkworks: Tom_L: yours are linear rails - right?
07:19 PM hazzy: logs
07:19 PM logs: hazzy: today's log: http://irc-logs.kcjengr.com/%23linuxcnc/2018/11/04.html
07:21 PM XXCoder: jthornton: found a cause of overheating?
07:21 PM XXCoder: short would go all way to blowout on traces i would think?
07:22 PM hazzy: Wolf__: This is right up your alley: https://www.solopopgo.com/collections/beauty/products/super-weeder
07:23 PM hazzy: Price seems pretty reasonable, LOL
07:23 PM hazzy: obviously a scam, but neat pictures all the same :)
07:24 PM XXCoder: name is WAY flipping too generic
07:24 PM XXCoder: google fail
07:24 PM XXCoder: wow it doent even show up in search even with store name included
07:25 PM XXCoder: "Default title = 149 usd"
07:25 PM XXCoder: lol
07:26 PM hazzy: I bet that site has only been up for a few hours, at most, no time for google to index it
07:26 PM XXCoder: check domain whois?
07:26 PM hazzy: good idea!
07:27 PM XXCoder: registered june 11 2018
07:27 PM XXCoder: expires 20/209
07:27 PM XXCoder: 20/20
07:27 PM XXCoder: dammit 2020
07:27 PM XXCoder: not named owner
07:29 PM Tom_L: skunkworks yes
07:31 PM gregcnc: real site http://www.slope-mower.com/products/
07:32 PM XXCoder: much, much more googleable
07:32 PM XXCoder: https://www.youtube.com/watch?v=KkcL5dATK0Y
07:32 PM XXCoder: a review https://www.youtube.com/watch?v=exBBhsBauCc
07:38 PM XXCoder: bit too big for home use lol too bad
07:38 PM XXCoder: definitely biggert than I expected
07:43 PM hazzy: just watched that review and I'm about to die, LOL. I've never heard a string trimmer called a whipper-snipper, but it's the perfect name!
07:43 PM gregcnc: yeah whipper snipper
07:47 PM XXCoder: i wonder if there is home version
07:51 PM hazzy: they make a mini which has a 22" cut width, which is the same as a typical residential mower (here in the states at leasts)
07:56 PM XXCoder: interesting
08:18 PM gregcnc: Anyone using LED lights like this? http://a.co/d/dIUoitk
08:20 PM XXCoder: 10-30v wow plenty of v room
08:20 PM XXCoder: doesnt say anything about lumens tho
08:20 PM gregcnc: I want to replace a fluorescent fixture in my lathe. but the reviews on this and similar chinaco are pretty crap
08:20 PM gregcnc: 1200lm
08:21 PM XXCoder: 12 months for 2 to die
08:21 PM gregcnc: seems like a lot also leak and get moisture inside
08:21 PM XXCoder: sounds like rebuild before use product.
08:22 PM gregcnc: also junk drivers means they will also be dead soon
08:23 PM SpeedEvil: https://www.aliexpress.com/item/100W-150W-200W-Driverless-Smart-IC-Beads-Lamp-White-High-Power-COB-LED-Chips-AC-220V/32831882482.html are also a thing
08:23 PM gregcnc: maybe build an enclosure for something lie https://www.ebay.com/itm/332718700355
08:23 PM gregcnc: exaclty
08:23 PM gregcnc: 150W in the lathe and I'll go blind
08:23 PM SpeedEvil: You will of course need heatsinking.
08:24 PM SpeedEvil: 100w only produces about the same light as a 20cm square of sunlight
08:25 PM gregcnc: The 20yo CFL was rated 800lm new and is now cracked and has coolant oil in the lens
08:26 PM gregcnc: I guess I should look around to see if 1000lm for the one I linked is really 1000. and find some heat sink req's
08:28 PM gregcnc: those 150W aren't even big
08:56 PM Rab: Anybody have a preference for cool vs warm white for machine tool lighting?
08:57 PM XXCoder: pure white if can get
08:57 PM XXCoder: cool or warm is more common unfortunately
08:57 PM XXCoder: if no choice, cooler is btter I would think
08:58 PM Rab: I really prefer incandescent (and mimics), not sure why...stuff just feels more visible in warmer light.
09:00 PM Rab: But that may be an association I have from using older equipment before compact cool/full spectrum light sources were more commonly available.
09:15 PM MarcelineVQ: best color balance I've found so far is 4000k which the brand I buy calls Daylight White (which isn't a standard term). It's impossible to tell what something will be without trying it though which sucks, some brands list Daylight at 6500k and White as 3000k, every website/brand seem to have completely different explanations of what Daylight, White, Cool, etc actually range as
09:16 PM XXCoder: yeah thats a huge annoyance
09:16 PM MarcelineVQ: Wouldn't recommend less than 100w equivalent in any bulb for an E26 socket
09:18 PM MarcelineVQ: google says that 1600 lumens it looks like, ~19 actual watts
09:21 PM XXCoder: this entire house is led lit
09:24 PM MarcelineVQ: nice. when our incandescent ballasts go bad I swap to LED since you can just cut out the ballast and use the same fixture
10:38 PM XXCoder: myfordboy casting. been a while
10:51 PM XXCoder: man his furnce looks so worn
10:51 PM XXCoder: I remember watching his series building that thing