#linuxcnc Logs

Jun 03 2017

#linuxcnc Calendar

12:11 AM ChanServ changed topic of #linuxcnc to: LinuxCNC is a linux-based open-source CNC control. | Latest releases: 2.7.9 | http://www.linuxcnc.org
12:23 AM Crom: hmm 2.7.9 is out... time to go see what 2.8.x is to...
01:59 AM IchGucksLive: morning from Germany
01:59 AM XXCoder: yo
02:06 AM IchGucksLive: im off to garden
02:18 AM Deejay: moin
06:33 AM JT-Mobile: DFW is out of the way for me...
06:37 AM JT-Mobile: morning
06:37 AM XXCoder: yo
06:37 AM JT-Mobile: homeward bound today :)
06:41 AM JT-Mobile: I wonder if the chickens will recognize me...
06:42 AM XXCoder: is they still existant?
06:43 AM JT-Mobile: yea my buddy is taking care of them and the cat
06:43 AM XXCoder: lol ok
06:43 AM XXCoder: few people simply forget pets when go on vacation
06:44 AM XXCoder: and come back to pet in very poor condition or dead
06:45 AM JT-Mobile: my neighbor is watching out for threats and my buddy checks them twice a day
06:59 AM JT-Mobile: been printing anything?
07:11 AM XXCoder: nah
07:11 AM XXCoder: I still cant foxus
07:11 AM XXCoder: focus
07:11 AM XXCoder: its a bad flaw, JT-Mobile
07:12 AM JT-Mobile: dang, raining atm here
09:27 AM Deejay: re
09:56 AM IchGucksLive: hi
09:57 AM IchGucksLive: oh new release
09:57 AM IchGucksLive: 2.7.9
09:57 AM IchGucksLive: but not on the homepage
10:06 AM phipli: hum
10:06 AM phipli: why does my laptop think it is 11:23 at night
10:07 AM IchGucksLive: maybe it is
10:07 AM IchGucksLive: as the world turns
10:08 AM IchGucksLive: phipli: ot the 2035 is tro give life ending signal
10:09 AM IchGucksLive: biggest reock event live now streaming after terror break
10:10 AM IchGucksLive: http://www.rock-am-ring.com/
10:11 AM IchGucksLive: till later
10:51 AM Gbeard: hello all
10:52 AM Gbeard: wow lots of users connected, but its all quiet. anyone here?
10:53 AM Simonious: lots of lurkers
10:53 AM Gbeard: id love to pick the brains of anyone here that has some knowledge to share
10:53 AM Tom_L: how to brew?
10:53 AM Gbeard: anyone free to help a noob out?
10:54 AM Tom_L: here, you just ask and wait
10:54 AM Gbeard: ah fair enough
10:54 AM Gbeard: ive literally just thrown myself into this cnc thing
10:55 AM Tom_L: hope you didn't get injured
10:55 AM Gbeard: i have a 6560 (i know, generally considered rubbish) but i needed a cheap place to start
10:55 AM CaptHindsight: the answers however don't always match the questions
10:55 AM Gbeard: lol ok ill keep that in mind
10:55 AM Gbeard: so im on linux cnc
10:56 AM Gbeard: gone through the config and all 3 motors are running in the config during setup
10:56 AM Gbeard: but the manual controls in linuxcnc are greyed out
10:56 AM * Simonious ponders
10:56 AM Gbeard: so ive evidently missed something
10:56 AM Tom_L: maybe mdi mode...
10:56 AM Simonious: you did the F1 F2, to connect..?
10:56 AM Gbeard: originally i had the inputs setup in config (estop etc)
10:57 AM Simonious: And they work IN the test screen during setup?
10:57 AM Gbeard: but estop was stuck on in linuc cnc then
10:57 AM Gbeard: yes they work fine in setup
10:57 AM Gbeard: so iguessed that the input was stuck on
10:57 AM Gbeard: so i removed all imputs temporarily
10:58 AM Gbeard: so f1 now turns on and off when i press f1
10:58 AM Gbeard: but the controls still remain greyed out
10:58 AM Simonious: huh, not sure, I really should spend more time with my setup and get a better understanding of how it is doing things. I've honestly considered switching the whole machine over to smoothieboard, which I think is more intuitive for the way I do things. I do like LinuxCNC though.
10:59 AM Gbeard: currently im just trying to confirm that linuxcnc can control my board at this point
10:59 AM Tom_L: what board?
10:59 AM Gbeard: as i said it works in setup, which is great, but i want to ensure that it can follow a gcode and move
10:59 AM Gbeard: its a 6560
11:00 AM Gbeard: can i post links here? if so i can give an ebay link to the one i have
11:00 AM Tom_L: if they're short
11:00 AM Tom_L: or use tinyurl
11:00 AM Gbeard: ok one sec
11:00 AM Gbeard: omg
11:00 AM Gbeard: im an idiot
11:00 AM Gbeard: f2= powerup
11:00 AM Gbeard: P
11:01 AM Tom_L: glad we could help...
11:01 AM Gbeard: thanks simonious
11:01 AM Gbeard: and to all
11:02 AM Gbeard: ok progress. excellant. following a gcode and all 3 motors moving
11:03 AM Simonious: \o/
11:03 AM Gbeard: they sound a little grindy tho
11:03 AM Tom_L: could be stepper timing
11:03 AM Tom_L: etc
11:03 AM Gbeard: perhaps
11:03 AM Gbeard: ill find this link. show you guys what i have.
11:03 AM Gbeard: 1 sec
11:06 AM Gbeard: http://www.ebay.co.uk/itm/382006332460?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
11:06 AM Gbeard: this is what i have
11:06 AM Gbeard: dirt cheap just to dip the toes in you know? :P
11:07 AM Gbeard: i also had a question regarding limit switches, if anyone is game to answer
11:08 AM Gbeard: this board has one input for a limit switch for each axis. so my question is do i hook up both switchs, one from either end of an axis to one input?
11:08 AM Gbeard: since only having a switch on one end of the axis isnt going to prevent it from continuing the other way?
11:10 AM Gbeard: am i still connected here?
11:12 AM Simonious: yes
11:13 AM Gbeard: ah ok cool
11:13 AM Gbeard: wasnt sure. ebay ads locked up the machine for a sec
11:14 AM Gbeard: so yeah, shouldnt it have an input for 2 limit switches for each axis?
11:16 AM pcw_home: you can share home / negative-limit / positive-limit if you only have one input per axis
11:16 AM Gbeard: so wire the switches in parallel i presume?
11:16 AM pcw_home: though you should never hit the positive limit unless you have a hardware or setup failure
11:17 AM Gbeard: and will it understand that after hitting a switch, that it is ok for it to move in the opposite direction?
11:17 AM Gbeard: ok i think i understand
11:17 AM pcw_home: normal practice would be to use NC switches in series
11:18 AM Gbeard: im just trying to understand how it knows its operational axis limitations
11:19 AM pcw_home: NO switches can be used in parallel but is a bit less safe WRT hardware failure
11:19 AM Gbeard: parallel is wrong
11:19 AM Gbeard: what i mean to say
11:20 AM pcw_home: if you have NO switches parallel is pretty much your only option
11:20 AM Gbeard: is the positve from the connector going to the positive of both switches and the same for the negative. that way if either switch is triggered it will close the loop
11:21 AM pcw_home: NO = Normally Open
11:21 AM pcw_home: NC = Normally Closed
11:21 AM Gbeard: oic
11:21 AM Gbeard: yes
11:21 AM Gbeard: sorry im new to the whole cnc thing
11:22 AM Gbeard: i understand the concept fully
11:22 AM Gbeard: its just the nuances and jargon that im struggling with
11:23 AM Gbeard: especially with this chinese board. lol the teminology does not correlate with the software
11:24 AM Gbeard: for example pin 15 on the lpt on my board is listed as "lpt signal input/customised@
11:24 AM Gbeard: i have no idea what that correlates to in linuxcnc
11:25 AM Gbeard: is it perhaps one of the digital outputs?
11:25 AM pcw_home: it should be fairly obvious whwre pin 15 is in stepconf
11:26 AM Gbeard: i know where pin 15 is on cfg. i just dont know what to set it to
11:26 AM DrippityDrops: I built this servo tapping unit and I want to do a conversion of a drill press into a servo tapper. Basically an encoder on the quill and an encoder on the spindle motor. You set the pitch of thread with a knob and when you pull the quill down it ridgid taps at that rate. This is a good idea right?
11:30 AM pcw_home: pin 15 is an input so useable for any thing that needs monitoring
11:31 AM DrippityDrops: oh, so if you wanted to hook up a home switch you could hook it up there?
11:31 AM DrippityDrops: neat
11:31 AM pcw_home: sure
11:31 AM DrippityDrops: ;)
11:32 AM pcw_home: DrippityDrops: for tapping you need a controlled Z axis and encoder feedback (with index) from the spindle
11:33 AM DrippityDrops: Gbeard: a limit switch, home switch, coolant on, etc could all be options for inputs, or such as digital inputs for use in the gcode
11:33 AM pcw_home: touch probe also
11:34 AM DrippityDrops: pcw_home: I currently am using one encoder on the z axis and one encoder on a servo motor controlling the spindle. I am leaving the machine in JOG mode. SO the linear quill encoder is an JOG encoder that drives the "X" spindle. it works great. you follow?
11:35 AM Gbeard: oh ok
11:36 AM DrippityDrops: as I move the quill up and down it rotates the spindle at the given rate. the faster the quill goes down, the faster the spindle turns to keep in time.
11:36 AM pcw_home: DrippityDrops: so basically geared together, though it seem like normal linuxcnc gcode would be easier
11:36 AM DrippityDrops: on one machine the quill is hydraulic fed so I cannot control the rate very well. so I have the spindle accomodate
11:37 AM DrippityDrops: yes as it seems it would be easier but then I need to be able to accurately control the z axis
11:37 AM pcw_home: Not sure thats true
11:37 AM DrippityDrops: well I have no way to affordably control the Z axis of a hydraulic driven spindle
11:38 AM pcw_home: that is i'm not sure whether LinuxCNC syncs the spindle to commanded or feedback of Z
11:39 AM DrippityDrops: imagine though, if you have a drill press and are bringing the spindle down manually
11:39 AM pcw_home: No you're right Z is synced to spindle
11:39 AM DrippityDrops: how do you even get the spindle to keep at the fiven rate
11:39 AM pcw_home: so needs control
11:39 AM DrippityDrops: right
11:40 AM DrippityDrops: in this case I can do everything with 1 motor and two encoders
11:40 AM DrippityDrops: so cost is very low
11:40 AM zeeshan: that'd require the spindle to speed up / slow down
11:40 AM pcw_home: OK
11:40 AM DrippityDrops: a person just pulls the lever
11:40 AM zeeshan: pretty quickly
11:40 AM zeeshan: sudden movements might cause issues
11:40 AM pcw_home: yeah so geared in hal should work
11:40 AM zeeshan: you thinkso?
11:41 AM DrippityDrops: zeeshan: i know so
11:41 AM zeeshan: i dont think the spindle would be able to speed up/down fast enough
11:41 AM DrippityDrops: it already is tapping parts
11:41 AM zeeshan: if the person is jerking the downfeed handle
11:41 AM zeeshan: unless the downfeed is removed from the control of the operator
11:41 AM DrippityDrops: it depends on rpm of motor and acceleration rate
11:42 AM DrippityDrops: also you can remove motion by using linear encoder and not letting it touch until the tap is near part and moving slower feed
11:42 AM zeeshan: so if the person stops feeding part way
11:42 AM zeeshan: all the sudden
11:42 AM DrippityDrops: the servo stops
11:42 AM pcw_home: zeeshan: he has a servo controlled spinclde
11:42 AM DrippityDrops: at given rate
11:42 AM zeeshan: the motor should really be at 0 velocity instaneously
11:42 AM DrippityDrops: you cant do that with any setup
11:42 AM DrippityDrops: because inertia
11:42 AM zeeshan: exactly
11:43 AM zeeshan: how do you get around that tho
11:43 AM zeeshan: i like the idea
11:43 AM DrippityDrops: all im saying is it works already if you arent trying to slam the quill
11:43 AM zeeshan: this is why flex arms really work well
11:43 AM zeeshan: because you're letting the lead of the tap do the z movement
11:43 AM DrippityDrops: yeah or pullout/floating holders
11:43 AM DrippityDrops: with push pull springs in them
11:44 AM DrippityDrops: I want to do draps with this tho
11:44 AM zeeshan: draps?
11:44 AM DrippityDrops: so i can program high speed spindle until tap starts then tap rate
11:44 AM DrippityDrops: its a drill and tap combo
11:44 AM zeeshan: oh haha
11:45 AM DrippityDrops: drills..... and taps through holes and the can exit out the same hole
11:45 AM DrippityDrops: okay so imagine this, if programmed correctly
11:45 AM DrippityDrops: a drap with a chamfer behind the threaded tap area
11:45 AM zeeshan: well if youre drilling and taping at the same time
11:45 AM zeeshan: you will have a lot more friction that can help stop almost damn close to instant
11:45 AM zeeshan: if someone decides to stop feeding partially all the sudden
11:46 AM DrippityDrops: so a quarter inch plate the drap/chamfer can drill,tap, and chamfer hole without
11:46 AM DrippityDrops: changing tools
11:47 AM DrippityDrops: right now its super slick, if I just pull the lever up and down slowly while in the middle of the part, it will back all the way out and I clear the shavings and go right back into the hole without worrying about missing the first thread like you do with the arm tappers
11:48 AM zeeshan: hand peck tapping
11:48 AM DrippityDrops: yah
11:48 AM zeeshan: impossible with the hand tappers like youre saying
11:48 AM zeeshan: i like
11:48 AM zeeshan: :)
11:48 AM DrippityDrops: so if its a deep threaded hole its easy
11:48 AM DrippityDrops: yup
11:48 AM DrippityDrops: yup yup
11:48 AM DrippityDrops: i can show you a video of my first prototype unit
11:48 AM zeeshan: are you planning to sell these
11:48 AM zeeshan: you should hgave a pretty good market for these
11:49 AM zeeshan: especially if you sell on the peck tapping point :)
11:50 AM DrippityDrops: this is the hydraulic driven quill, and I have the scaling low to show the shanges from rapid to tap and reverse https://vimeo.com/212690959
11:51 AM zeeshan: looks cool :D
11:52 AM DrippityDrops: the other unit I just finished, its up to about 4,000 tapped holes, 3/8-16 @ 5/8 deep and cutting 303SS
11:53 AM DrippityDrops: its a cam driven quill tho so easy to keep even feeds, but still just one servo motor and two encoders
11:53 AM DrippityDrops: im trying to find a way to incorporate this MPG JOG style tapping action within gcode
11:55 AM DrippityDrops: I was thinking about doing a very similar unit for profiling, where lets say this is a lathe. I could put the X axis on the servo very low cost, and as you move the Z axis it profiles at your lathes feed rate
11:57 AM DrippityDrops: all your really doing is replacing the tool post with a servo toolpost and then using the digital readout of the Z axis to handle the gcodes interest in doing coordinated motions. anf then emulate the servo motor for Z axis. This would mean that x only feeds when you driving Z... also reasonable and low cost addon for any lathe I think
12:02 PM DrippityDrops: zeeshan: I thought about buying some drill presses and doing the conversions yes.
12:03 PM Deejay: re
12:04 PM DrippityDrops: zeeshan: you want to lead the project?! =D I'll engineer it all up and you do the retrofits and sell them =F
12:05 PM zeeshan: you do it all :)
12:05 PM zeeshan: i am too busy engineering other crap
12:05 PM DrippityDrops: sames
12:05 PM zeeshan: i like the idea though
12:05 PM DrippityDrops: i built this out of necessity
12:06 PM DrippityDrops: was hoping someone else would like the idea enough to run with it and make me lots of money
12:10 PM Gbeard: jumping off for a while guys. thanks for the input. im sure ill be back soon
12:20 PM DrippityDrops: you can thank pin 15 for the input
12:47 PM IchGucksLive: hi all
12:48 PM IchGucksLive: heavy weather around yust breaf takea look at the desaster page
12:49 PM IchGucksLive: red alert http://www.unwetterzentrale.de/uwz/rlpindex.html need to take action bye
02:27 PM -!- #linuxcnc mode set to +v by ChanServ
03:24 PM Cromaglious_: my cnc 3040 could go faster... step generation is my limiter. So I need to find itx mb faster than my quad core atom 1.6ghz with lpt port
03:33 PM CaptHindsight: every old machine I've gotten has messed up wiring
03:39 PM CaptHindsight: but it did come with 2 cans of genuine Clausing Way Lube https://imagebin.ca/v/3Ojlh4rldOLw
03:40 PM CaptHindsight: wish they had date codes
05:06 PM Deejay: gn8
05:06 PM XXCoder: LOl what a dumbass https://www.youtube.com/watch?v=iRUSQm5ZskQ
05:10 PM JT-Shop: what's up XXCoder
05:10 PM XXCoder: bored
05:10 PM XXCoder: did you see that video? dang what a dumbass. and I see you arrived lol
05:10 PM TurBoss: isn't that toxic?
05:11 PM TurBoss: I stoped the video before the great part I could imagine the rest
05:11 PM XXCoder: yeah but its not skin contact toxic. dunno if it got in his eyes or something
05:12 PM JT-Shop: no, trying to keep usage under control this month lol
05:12 PM XXCoder: in mouth small amount cause irration, in eyes its more sensive and may cause eye ingury website says
05:12 PM XXCoder: chemical burns may happen on skin if sitting there for extended time
05:12 PM XXCoder: so it is skin toxic just takes time
05:17 PM XXCoder: anyway it shows dumbass place glow in dark in microwave
05:17 PM XXCoder: it really glows bright
05:18 PM XXCoder: he takes it put, looks around it, shakes and it blows up
05:18 PM XXCoder: his shirt is peppered with glowy stuff, and face also
05:18 PM XXCoder: his dad comes in and talks something about ruining another shirt and gets him to go to wash face and stuff
05:18 PM XXCoder: autocrapons was pretty bad so only vague idea what was being said
05:19 PM JT-Shop: sounds like a dumbass to me
05:19 PM XXCoder: he is
05:19 PM XXCoder: I'd wear eye protection and use not family microwave but junkyard one heh
05:23 PM pcw_home: the result of microwaving sealed containers of water/solutions is fairly predictable (eggs for example)
05:25 PM XXCoder: yeah
05:25 PM XXCoder: I was surpised it held together
05:25 PM XXCoder: I guess his shaking it caused it to boil over and vastly increase pressure
05:28 PM JT-Shop: prob like super heating water then adding a catalyst that starts the reaction
05:34 PM XXCoder: yeah theres glass peices in it
05:34 PM XXCoder: as well as now softened and imperfect plastic surfaces in it. those probably released paracles that act as catalyst
05:43 PM phipli: JT-Shop, home again?
05:43 PM phipli: Enjoy your trip?
05:44 PM JT-Shop: yes, got home this afternoon
05:44 PM JT-Shop: quite fun but glad to be home
05:48 PM JT-Shop: phipli: is there any advantage to using the built in pull ups on the nano?
05:49 PM phipli: space?
05:49 PM phipli: I usually use external resistors
05:49 PM phipli: then I can see that they're there
05:49 PM JT-Shop: ok, so just wiring and logic makes more sense
05:56 PM Cromaglious_: heh.. I was using a nano to read my sensors... now I just use a npn
06:06 PM phipli: JT-Shop, I mostly use Arduino Pro Minis and Pro Micros for the sort of thing you're doing if you're interested
06:06 PM phipli: they're really cheap
06:06 PM phipli: and really small
06:06 PM phipli: and arrive without the headers soldered usually
06:06 PM JT-Shop: I have a handful of nanos already :)
06:06 PM phipli: that is the best kind of option :)
06:06 PM JT-Shop: that would be handy for wiring
06:07 PM phipli: Like Free Beer = Good Beer
06:07 PM JT-Shop: what is the difference between the mini an micro?
06:07 PM phipli: based on different chips + one has built in USB
06:08 PM phipli: the other needs a USB to TTL programming board - but they're useful to have anyway
06:08 PM Cromaglious_: micro is the same as an Android phone cable.. mini is bigger a bit
06:08 PM phipli: Cromaglious_, we're talking about arduinos, not usb
06:08 PM Cromaglious_: heh
06:09 PM Cromaglious_: I have nano's with micro and mini usb ports
06:09 PM phipli: https://cdn.sparkfun.com/r/600-600/assets/learn_tutorials/1/0/4/graphicalDatasheet.png
06:09 PM phipli: http://www.pighixxx.com/test/wp-content/uploads/2016/07/pro_micro_pinout_v1_0_red.png
06:11 PM phipli: The chinese atmega168 based Pro Minis are about £1 each, which is great for something with a built in voltage regulator etc
06:12 PM phipli: https://www.aliexpress.com/item/Pro-Mini-Module-Atmega168-5V-16M-For-Arduino-Compatible-With-Nano/32676023781.html
06:13 PM phipli: Heh. 97p each
06:13 PM phipli: crazytalk
06:18 PM phipli: although this one has free postage (didn't spot the postage on the other) : https://www.aliexpress.com/item/Pro-Mini-Module-Atmega168-5V-16M-Compatible-With-Nano/32802257908.html
06:19 PM malcom2073: Sparkfun did an article on some of the "fake" atmega chips, where some of them weren't even microcontrollers are all heh
06:20 PM malcom2073: verify functionality before plugging it into anything that costs more than a dollar
06:22 PM phipli: I have a load of them and they work fine
06:23 PM phipli: I always test cheap things before I build with them though
06:23 PM phipli: because you get rejects
06:24 PM roycroft: my lathe runs a lot more quietly and with a lot less vibration with the new betls
06:24 PM roycroft: belts
06:24 PM phipli: what is the difference roycroft? between the old and new?
06:24 PM roycroft: the rear bearing in the motor is a little squeaky, though, and i can't see a way to lubricate it without dismantling the motor
06:25 PM phipli: or is the difference simply that they are new :)
06:25 PM roycroft: i got the segmented type
06:26 PM roycroft: the ones with the links that you hook together
06:26 PM roycroft: similar to this:
06:26 PM roycroft: http://www.ebay.com/itm/222064857617
06:27 PM roycroft: the machine needed new belts anyway, and i did not want to remove the spindle to replace the spindle belt
06:27 PM roycroft: that type is supposed to be a lot more quiet, and transmit less vibration than the solid belts
06:28 PM malcom2073: I've been thinking of getting one of them to replace my lathe belt, same reason: avoid removign the pindle
06:28 PM malcom2073: spindle*
06:28 PM roycroft: i'll find out soon if it does transmit less vibration, but my sense is that it does
06:28 PM malcom2073: They'repretty quiet?
06:28 PM roycroft: yes, a lot more quiet
06:28 PM roycroft: i have the chuck off right now because i'm measuring the spindle nose so i can make a replica of it for fitting my new back plate
06:29 PM roycroft: my machine takes two belts
06:29 PM JT-Shop: goodnight, I'm a tired puppy
06:29 PM roycroft: one 6' length of that flex-link stuff made two shorter belts, with a tiny amount left over
06:29 PM Tom_L: i bet
06:29 PM Tom_L: lotta miles on a bike
06:30 PM JT-Shop: 1,900 miles :)
06:30 PM Tom_L: did you try that bypass?
06:30 PM JT-Shop: we took 610 around houston yea
06:31 PM JT-Shop: very little traffic
06:31 PM Tom_L: same result when we did it
06:34 PM XXCoder: pretty amazing https://www.youtube.com/watch?v=pdVpUX7NeFI
06:41 PM phipli: I like the screw terminal cheat
06:44 PM XXCoder: https://hackaday.com/2017/06/02/the-trouble-with-old-model-steam-engines/
06:44 PM XXCoder: very interesting videos
06:45 PM XXCoder: "nuts is different colors, there must be something shitty in steam engine" and indeed it does.
06:45 PM XXCoder: guy must fix tons of small steam engines.
06:49 PM malcom2073: Heh, things like that, if you are capable of building them right and getting them running, you're usually the kind of person meticulous enough to get all the nuts the same color
06:50 PM malcom2073: I'll bet you can make a lot of money that way. Buying peoples broken model steam engines, fixing and reselling
06:50 PM XXCoder: "strange color combination, red and black. usually indiction of problem somewhere"
06:50 PM malcom2073: Eg: Guy threw it togther with whatever had cause he was mentally done with it
06:51 PM malcom2073: "Fuck this, get it together and ship it"
06:51 PM XXCoder: the flywheel had bad set screw, if it breaks it would make it impossible to remove. he changed it to better kind that uses hex tool not - type
06:51 PM malcom2073: I've been there haha
06:51 PM XXCoder: I want to make stream engine but I dont want too many hobbies, and stirling engine is higher in list
06:51 PM malcom2073: I wanna make a 4 stroke IC engine
06:51 PM malcom2073: someday
06:52 PM phipli: EFI?
06:52 PM malcom2073: steam boilers scare me somewhat
06:52 PM malcom2073: phipli: It's *REALLY* hard to efi small engines apparently
06:52 PM phipli: :)
06:52 PM phipli: Could make an EFI steam engine
06:52 PM malcom2073: Electronic valves?
06:52 PM phipli: that wouldn't be too complex
06:52 PM phipli: yeah, exactly
06:53 PM phipli: could use fuel injectors - perhaps decapped
06:53 PM malcom2073: Hmm
06:53 PM XXCoder: wow that engine has tons problems
06:53 PM malcom2073: I'm building a small waterbrake for testing small engines, I'm gonna see if any of the hobby IC engine guys are interested in that sort of thing
06:53 PM phipli: have you seen magnetic brakes?
06:54 PM malcom2073: I have, I thought about doing an eddy brake
06:54 PM malcom2073: but I want to make a large one someday, and a water brake is easier to make and more practical to cool
06:54 PM XXCoder: I'm glad captions is movable now
06:54 PM XXCoder: because he inserts url in video and it inferences with captions lol
06:55 PM malcom2073: I got my material today for that, 4" diameter 4" long aluminum rod
06:57 PM malcom2073: Buddy of mine also threw in a 10" diameter slab, 4" thick, that is for the next one
07:03 PM XXCoder: malcom2073: steam powered lawmmower heh
07:11 PM roycroft: well that's incredible
07:12 PM roycroft: all the chatter/vibration is gone, and i'm getting nice, smooth cuts now
07:12 PM XXCoder: whats you do? threaten it?
07:13 PM roycroft: i put the new belts on
07:13 PM roycroft: the old ones were really, really ratty
07:13 PM roycroft: as in disintegrating and shedding all over the place
07:13 PM XXCoder: so it was sucky belts causing bad cuts eh
07:14 PM roycroft: so i won't attribute the entire improvement to the new type of belt
07:14 PM roycroft: but i think the new type did help
07:14 PM roycroft: yes
07:14 PM roycroft: i like problems that are that simple to solve
07:14 PM roycroft: although that new belt cost me $75
07:14 PM roycroft: simple, but not cheap
07:14 PM XXCoder: too bad most problems not that
07:14 PM XXCoder: though most problems become simple with enough money lol
07:15 PM roycroft: well, at the end of they day you can always pay someone to fix the problem
07:15 PM roycroft: which makes it simple for you, if you have the money
07:15 PM XXCoder: yep
07:17 PM roycroft: when measuring my spindle nose i calibrated a 3" mic against the 2" standard it came with
07:17 PM roycroft: then, for the heck of it, i calibrated it against a 2" gage block
07:17 PM roycroft: it was off by 0.0008"
07:17 PM roycroft: i decided to trust the gage block
07:18 PM roycroft: for my current purpose, it doesn't matter as long as the calibration does not change before i get my work done
07:21 PM XXCoder: .0008"? thats pretty big error for 123 block
07:21 PM XXCoder: err not 123
07:21 PM XXCoder: 2" standard
07:21 PM malcom2073: XXCoder: Sounds awesomely dangerous (Re: lawn mower)
07:21 PM XXCoder: mal someone 3d printed one
07:22 PM XXCoder: it was... dangerous. lol
07:22 PM XXCoder: https://www.youtube.com/watch?v=bKvRb5LJP9A
07:22 PM malcom2073: lol wtf
07:22 PM roycroft: the "standard" looked like a piece of 1018 rod that someone hacked off with an electrician's pliers
07:22 PM malcom2073: That's actually kinda awesome
07:23 PM roycroft: which is why i decided to check against a gage block
07:23 PM XXCoder: yeah I'd trust gage block a lot more
07:23 PM XXCoder: expecially if it was certified
07:24 PM XXCoder: at work I saw there was a new tall height gauge, saw it didnt have certificatiin yet so I moved on to other height gauge becaise who knows
07:24 PM roycroft: a terrorist attack is taking place in london right now
07:24 PM roycroft: at least 3 distinct "major incidents" in the vicinity of london bridge
07:24 PM XXCoder: jeez.
07:24 PM roycroft: stabbings, shootings, and confirmee fatalities
07:24 PM roycroft: confirmed
07:25 PM roycroft: a van drove into pedestrians near london bridge
07:25 PM phipli: sigh
07:26 PM XXCoder: I cant imange a mindset thjat says its ok to kill people
07:26 PM roycroft: the election is still five days from now
07:26 PM roycroft: this may well not be the end of it
07:27 PM roycroft: first manchester, now london
07:27 PM phipli: is there a point where it is appropriate to delay an election because this sort of thing will influence people?
07:27 PM XXCoder: if there is possibility some people will use it
07:27 PM XXCoder: so best way is zero possibility
07:28 PM roycroft: phipli: delaying/cancelling the election would be a victory for terrorists
07:28 PM phipli: so would influencing the vote
07:28 PM XXCoder: well think about it
07:28 PM roycroft: then the best thing to do is try to not let it influence the vote
07:28 PM XXCoder: yes youre right it will be affected either way
07:29 PM XXCoder: but if delays is possible other people (far less terroristic) could abuse it
07:29 PM roycroft: corbyn has been surging these past few days
07:29 PM XXCoder: and like roy said try best not affect vote at all
07:29 PM roycroft: because may has been a horrible candidate, and people are finally figuring that out
07:30 PM roycroft: but sadly, terrorist attacks play to the tories, not labour
07:30 PM XXCoder: wow! https://hackaday.com/2017/06/02/first-thoughts-on-the-new-up-core/
07:30 PM XXCoder: single board. I wonder if its good for linuxcnc.
07:30 PM roycroft: and corbyn's biggest weakness, perhaps, is that he won't commit to waging war, even under extreme circumstances
07:30 PM roycroft: which might sway the vote in the wake of multiple terrorist attacks
07:31 PM XXCoder: one thing I dont see is no parallel port?
07:36 PM phipli: I find it weird that people condemn someone for saying they don't want to kill lots of people
07:36 PM roycroft: it's being spun as he's weak on homeland defence
07:36 PM phipli: and I wonder why there is suddenly a load of crap happening here after it being so quiet for years
07:36 PM XXCoder: war should be LAST resort after all diapolitic channels fail
07:36 PM phipli: 70 years since we were last threatened with anything that might result in all out war
07:36 PM XXCoder: usa wonderful president may well bring it in
07:36 PM phipli: we should have a different name for the political wars that politicians keep waging
07:36 PM phipli: because they're not defence
07:37 PM roycroft: make chips, not war!
07:37 PM phipli: which type of chips? I'd settle for either
07:38 PM XXCoder: pototo chipsmwith seasoning of Al chips on it
07:38 PM XXCoder: chips with chips on em
07:42 PM XXCoder: hmm
07:42 PM XXCoder: anyone know of reasonable resolution small screen tv?
07:42 PM XXCoder: like 6" or 8
07:43 PM phipli: I'd probably go monitor for that size
07:44 PM phipli: find something with the needed inputs
07:44 PM phipli: do you need a built in tuner?
07:44 PM roycroft: any kind of chips would be fine, i suppose
07:44 PM Cromaglious_: sheeshz... avr-gcc is sooo slow on windows
07:45 PM XXCoder: phipli: composte input
07:45 PM phipli: 74xx series or 4000 series?
07:45 PM phipli: XXCoder, in car screens?
07:46 PM XXCoder: uhh just to play with nes game lol
07:46 PM phipli: :)
07:47 PM XXCoder: https://www.amazon.com/dp/B01FFAFMM0/
07:47 PM phipli: There are all sorts of small screens on Amazon, CCTV inspection screens, in-car entertainment screens, reversing camera screens...
07:48 PM Cromaglious_: lots of them have composite inputs..
07:48 PM XXCoder: yeah
07:48 PM phipli: perhaps go for something a little higher resolution so you can use it for other things as well?
07:48 PM roycroft: there's only so much useful resolution on a tiny display like that
07:49 PM XXCoder: yeah but same time its not for computer and such
07:49 PM XXCoder: my computer is already dual screen lol
07:49 PM phipli: :)
07:49 PM phipli: anyways folks.
07:49 PM phipli: I'm heading off
07:49 PM XXCoder: later
07:49 PM phipli: nn
07:50 PM XXCoder: I have seen people turn consoles into laptops lol
07:50 PM XXCoder: using displaus such as those
07:51 PM XXCoder: https://vimeo.com/61412267#
07:52 PM XXCoder: mine is 8 bit gaming system so not orginial nes
07:53 PM XXCoder: know whats weird?
07:53 PM XXCoder: aliexpress you can buy nes cart plastic case cheap
08:00 PM XXCoder: wow
08:00 PM XXCoder: https://hackaday.com/2017/06/01/restoring-a-strange-milling-machine-from-craigslist/
08:00 PM XXCoder: weird mill.
08:01 PM malcom2073: Heh, looks like a 1960's equivalant of the kickstarter stuff
08:02 PM XXCoder: man guys bad with camera
08:03 PM XXCoder: and uses youtube auto-vomit process
08:07 PM XXCoder: malcom2073: https://hackaday.com/2017/05/31/a-water-jet-cutter-from-a-cheap-pressure-washer/
08:07 PM XXCoder: interesting
08:08 PM malcom2073: Yeah I saw that, he's still using a $1k cutter head though
08:08 PM XXCoder: that things 1k? dang
08:08 PM gregcnc: I watched a CSI last night where the suspect cut up bodies with a pressure washer
08:08 PM malcom2073: The only ones I've been able to find
08:08 PM malcom2073: gregcnc: Awesome
08:08 PM malcom2073: make for some nasty water heh
08:09 PM gregcnc: i couldn't watch him hand feed parts for long and I watched that clip before I saw the CSI
08:09 PM XXCoder: gregcnc: now this is something worse - they had quality issues with water at hotel
08:09 PM malcom2073: That cutter head wouldn't be *that* difficult to make though
08:09 PM XXCoder: they looked into water and found body in it
08:09 PM XXCoder: peoples been drinking parts of her for a while
08:10 PM XXCoder: http://losangeles.cbslocal.com/2016/10/31/questions-remain-3-years-after-womans-body-was-found-inside-la-hotels-rooftop-water-tank/
08:10 PM gregcnc: eww there was another where the house grey water fed into the lawn sprinklers and someone was murdered in th shower
08:11 PM malcom2073: XXCoder: Nasty
08:11 PM XXCoder: yeah
08:11 PM malcom2073: I saw those tanks being built on dirty jobs, first thought was :What if a body was in there
08:12 PM XXCoder: sadly that case may well never be solved
08:15 PM gregcnc: are machined keyboard keys a thing? https://www.instagram.com/p/BUZ7A2sF7iM/
08:16 PM Cromaglious_: very interesting https://hackaday.com/2017/06/01/restoring-a-strange-milling-machine-from-craigslist/
08:16 PM XXCoder: not so far I know
08:16 PM XXCoder: but interesting
08:16 PM XXCoder: Cromaglious_: yeah linked to it recently
08:17 PM XXCoder: gregcnc: make a all-alum board make apple jelious lol
08:17 PM Cromaglious_: heh there it is...
08:18 PM XXCoder: strange machine
08:26 PM gregcnc: saw this engraver conversion on CL https://milwaukee.craigslist.org/tls/6157684493.html
08:27 PM XXCoder: interesting
08:28 PM gregcnc: https://chicago.craigslist.org/wcl/tls/6156728654.html this ad is still up maybe nobody wants to haul it out of a basement. i'd go get it if I had more motivation and space
08:29 PM XXCoder: oops more cheating on pollution found
08:29 PM XXCoder: audi cheas on emissions
08:29 PM XXCoder: lol that is virtually a clone to one at work
08:30 PM XXCoder: its quite rarely used
08:32 PM easo2k: hi! what is the latest ubuntu to use with linuxcnc? precise pangolin 12.04 support ended in april. can i use 14.04 or even 16.04?
08:40 PM CaptHindsight: kewl glow stick explosion
08:40 PM gregcnc: are you microwaving them?
08:40 PM XXCoder: huh
08:41 PM CaptHindsight: I want to make a supersize one and blow it up real good
08:42 PM gregcnc: like tannerite good?
08:42 PM CaptHindsight: $1000 OBO for that Clausing 5930
08:43 PM gregcnc: yeah, if I had the room, it's a great price if the ad is real
08:43 PM roycroft: it doesn't have a drive rod
08:43 PM CaptHindsight: about what I got mine for last week
08:43 PM roycroft: so if it has power drive it must do it through the lead screw
08:45 PM CaptHindsight: add a VFD
08:45 PM CaptHindsight: I have to replace some O rings for the vari-speed drive
08:45 PM roycroft: and it does appear to have power drive
08:45 PM gregcnc: power feed? yes
08:46 PM roycroft: my machining instructor told me that power feed using the lead screw is undesirable because it causes excessive wear of the lead screw
08:46 PM CaptHindsight: I hate the original tool post
08:47 PM gregcnc: vari speed is hydraulic iirc
08:47 PM CaptHindsight: yeah
08:47 PM gregcnc: it uses a key in the slot. it's well lubricated assuming you lube the apron as called for
08:47 PM CaptHindsight: if the epoxy on the clutch is bad it's expensive to buy and replace from Clausing
08:48 PM CaptHindsight: so if too much is worn you just swap in a VFD
08:48 PM CaptHindsight: mine just needs some O-rings
08:49 PM CaptHindsight: it won't hold speed in the lower 1/3 of the range in Hi or Low
08:49 PM roycroft: well that clausing would be interesting if i hadn't just bought a lathe and if it were a whole lot closer than chicago
08:49 PM roycroft: hauling it out of someone's basement, not so interesting
08:49 PM roycroft: if i were local i might take it if they paid me to remove it :)
08:50 PM CaptHindsight: I have a 5 ton fork lift, I'll just drag it up the stairs
08:50 PM gregcnc: i need to buy the timing belt for my 4900. I bought one once, but somehow mismeasured the pitch
08:51 PM roycroft: i have ordered the steady rest and follow rest for my lathe
08:51 PM roycroft: and i have shipping confirmation, so i'm pretty sure i'll actually get them
08:51 PM roycroft: so i should be set - anything else i need for it i can make without too much difficulty
08:52 PM roycroft: those rests seemed like they would be a lot of fiddly work to fabricate
08:52 PM CaptHindsight: https://images.craigslist.org/00d0d_hvwC9VRXxfp_1200x900.jpg
08:53 PM CaptHindsight: your tool is never in the same place twice
08:53 PM gregcnc: yeah i've never used a latern post
08:53 PM CaptHindsight: I really don't have the patience to me a manual machinist
08:54 PM roycroft: i enjoy it, personally
08:54 PM roycroft: it's relaxing
08:54 PM roycroft: but i'm not doing it in production
08:54 PM roycroft: if my income depended on it i might think differently
08:55 PM CaptHindsight: I like assembling machines, not using them
08:55 PM gregcnc: manual lathe isn't bad. setting up tools on a cnc lathe is time
08:55 PM CaptHindsight: I don't have a problem with getting everything perfectly aligned and running
08:56 PM malcom2073: Building machines is more fun than using htem
08:56 PM CaptHindsight: then I'd rather someone else make parts with them
08:58 PM CaptHindsight: 2 cans of genuine Clausing Way Lube https://imagebin.ca/v/3Ojlh4rldOLw
08:58 PM CaptHindsight: they have to be 30+ years old
08:59 PM gregcnc: cool
09:01 PM CaptHindsight: whomever stored it away decades ago knew what they were doing
09:02 PM CaptHindsight: it was completely coated with a waxy clear film
09:03 PM gregcnc: that's nice and unusual
09:03 PM CaptHindsight: doesn't easily wipe off without a non-polar solvent
09:03 PM CaptHindsight: like they knew it would be some time before it would be used
09:04 PM CaptHindsight: they guy i got it from was at least in his 60's and he said it was his fathers lathe
09:05 PM gregcnc: the CL listing didn't make it look good
09:06 PM CaptHindsight: I cam across and lathe from the early 50's a couple of years ago....
09:07 PM CaptHindsight: was a big turret lathe and the bar feeder and stand were in an old box still in the wax paper from the factory
09:07 PM gregcnc: wow
09:08 PM CaptHindsight: just outside Milwaukee
09:08 PM gregcnc: i think i read maybe here that you could buy war issue stuff after the war for damn near free but you couldn't sell it
09:10 PM CaptHindsight: I bought this old WWII machinists Cincinnati mill
09:11 PM CaptHindsight: I aksed him if he knew about any more machines for sale so he took me across town to an old shop he used to work at
09:11 PM CaptHindsight: inside was the turret lathe and bunch of other old machines
09:11 PM CaptHindsight: he used to run them all
09:12 PM CaptHindsight: the shop had closed years ago
09:12 PM gregcnc: and it just sat around?
09:12 PM CaptHindsight: yeah, they just closed one day and everything was just as it was
09:13 PM CaptHindsight: only with more dust on it
09:13 PM CaptHindsight: I got a call from the original owners son the next week
09:13 PM gregcnc: strange everything and the building paid for otherwise it would have been gone
09:13 PM CaptHindsight: he said I could have whatever I wanted for scrap price
09:14 PM CaptHindsight: since he was going to use the building for car storage
09:15 PM CaptHindsight: the old machinist had rolled the mill out of his garage by himself when i came with a truck
09:15 PM CaptHindsight: he was maybe 5' 5" and 120 lbs and 80+
09:16 PM gregcnc: he just knew how to do it
09:17 PM gregcnc: ouch https://www.instagram.com/p/BU4lNhohEMR/
09:17 PM CaptHindsight: he sold me a box of tooling for $100 that must have had $3k in face mills, carbides and large dia end mills
09:17 PM CaptHindsight: nice casting
09:21 PM gregcnc: only thing i don't like about my clausing lathe is cross feed is 1/4 long feed, not sure if the 5900 are the same or if it's common on manual lathes
09:23 PM roycroft: my cross feed is about that
09:23 PM roycroft: i think the low z feed is 0.0039", and the low x feed is 0.00013"
09:23 PM roycroft: or something close to that
09:24 PM roycroft: er, 0.0013"
09:24 PM roycroft: i'd have to check, but i think that's pretty close to what it is
09:26 PM roycroft: it doesn't seem like a big deal to me though - you generally don't travel as far on x as on z
09:26 PM roycroft: so a slower x feed shouldn't slow down the job too much
09:27 PM gregcnc: i suppose it's actually convenient for parting
09:27 PM roycroft: 0.0036" and 0.0012"
09:27 PM roycroft: so 1/3
09:28 PM roycroft: yes, i can power part at the really slow feed rate
09:28 PM roycroft: i run the spindle really slow too when i part
09:28 PM roycroft: i see these videos of guys running at 500rpm and slamming the parting tool into their work
09:28 PM gregcnc: i don't unless it chatters
09:29 PM roycroft: it often does not end up well
09:31 PM roycroft: it's how i was taught, and i haven't done much turning since i stopped taking machining classes
09:31 PM roycroft: now that i have a semi-decent lathe i'll be doing a lot more, and i'm sure i'll develop my own techniques for a lot of things
10:07 PM CaptHindsight: near every used machine I get comes with a tool still in the holder ground by hand
10:08 PM CaptHindsight: usually cuts beautifully
10:08 PM CaptHindsight: unlike anything you unbox from China
10:09 PM CaptHindsight: I tried one of those Shars carbide turning sets (~40 pcs for $40) you certainly get what you pay for
10:11 PM Tom_L: like Q-tips. use em once and toss em
10:11 PM CaptHindsight: one pass and they are done
10:12 PM CaptHindsight: http://www.shars.com/products/cutting/tool-bits?num_pieces=38 stay clear
10:12 PM roycroft: i haven't used inserts/pre-ground tooling much
10:12 PM roycroft: i grind my own
10:13 PM Tom_L: i grind my own lathe blanks
10:13 PM roycroft: my machining instructor was really old school, and hated that so many machining programs teach using inserts, and don't teah how to grind
10:13 PM CaptHindsight: I figured how bad can they be
10:13 PM CaptHindsight: awful
10:14 PM CaptHindsight: I wore one out earlier on aluminum
10:16 PM CaptHindsight: Shars is near by but I only buy there in an emergency
11:12 PM Crom: I was looking at this jet motherboard which had a parallel port header and 8 GPIO pins... hmmm quad core 1.94Ghz 8GB ram
11:13 PM Crom: 1.83ghz
11:15 PM Crom: I have 2 pieces of tool steel... 1 of the 4 ends is my threader, the other end I use as a boring bar, other piece I just use one end for fine cuts for surface finish
11:21 PM justan0theruser is now known as justanotheruser
11:42 PM XXCoder: hly fuck
11:42 PM XXCoder: https://www.thesun.co.uk/tech/3629905/top-drone-manufacturer-threatens-to-brick-its-1-5k-copters-unless-owners-agree-to-share-their-details-online/
11:47 PM Crom: WTF! wow...
11:47 PM XXCoder: I wonder if this would be good replacement for linuxcnc linux base https://www.alpinelinux.org/posts/Alpine-3.6.0-released.html
11:48 PM Crom: not yet.. Python 3.6 would brick lcnc