#linuxcnc Logs
Apr 12 2019
#linuxcnc Calendar
01:59 AM Deejay: moin
02:15 AM rmu: _unreal_: yes
02:50 AM _abc_: Hi. Moving from 2.7 to 2.8, axiz 2 (Z) has home sw and home position high on Z, at +60mm or so, and is set accordingly in the .ini file. But in 2.7 I had to use negative home seeking verlocity for this, in 2.8, it has to be positive to work? Has this changed or am I confused by stepconf generated files I edited?
04:10 AM XXCoder: man
04:10 AM XXCoder: work have been pretty bad todayu
04:11 AM XXCoder: i ran very very very hard metal parts
04:11 AM XXCoder: and program was shit
04:11 AM XXCoder: machine was shit
04:11 AM XXCoder: I was shit
04:11 AM XXCoder: shit.
04:11 AM XXCoder: kidding on third one but it wasnt great
04:17 AM -!- #linuxcnc mode set to +v by ChanServ
04:31 AM Deejay: re
05:03 AM Tom_L: morning
05:04 AM XXCoder: mornings
05:07 AM jthornton: morning
05:08 AM XXCoder: hey jt
05:08 AM XXCoder: man today sucked heh
05:10 AM jthornton: why is that?
05:12 AM XXCoder: can you read up in history?
05:13 AM jthornton: yea, just woke up so a bit slow
05:14 AM XXCoder: man
05:14 AM Tom_L: jthornton, looks like your start radius is about .029 larger than mine
05:15 AM XXCoder: at end i took 7-8 hours to make 26 parts that should total 2 hours
05:15 AM XXCoder: endless problems
05:15 AM Tom_L: and near as i can tell the end is .0165
05:15 AM Tom_L: but it's hard to tell
05:16 AM jthornton: are you doing a 180° start arc?
05:16 AM Tom_L: i rotated my model
05:16 AM Tom_L: so x is 0
05:16 AM Tom_L: and y is -xxx
05:16 AM jthornton: also the tool edge is 0.020" from the id of the hole
05:17 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/test_thread_minusY.ngc
05:17 AM jthornton: at the start of the arc
05:17 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/jt.ngc
05:17 AM Tom_L: that's partially why i'm not certain
05:18 AM Tom_L: and your's has 3 G3 per turn instead of the 1 on mine
05:19 AM jthornton: should be 1 G3 for the threads and 1 for lead in and 1 for lead out
05:19 AM Tom_L: i wondered about that. i did a linear move instead
05:19 AM Tom_L: yours is technically more correct
05:20 AM jthornton: eww line numbers lol
05:20 AM Tom_L: :)
05:21 AM Tom_L: i left them in when i was working on my post
05:22 AM Tom_L: i'm just used to them. we always left them in
05:22 AM Tom_L: the programmer and operator could communicate edits easier
05:22 AM jthornton: hard to compare when they are not at the same zy coordinate lol
05:23 AM Tom_L: yeah
05:24 AM Tom_L: maybe later i'll rotate it _and_ lower it and repost
05:24 AM jthornton: you have 3 passes all even amounts of step over
05:24 AM Tom_L: right and on that one i did a spring pass
05:25 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/test_thread.ngc
05:25 AM Tom_L: there's before i changed the model
05:25 AM jthornton: I guess you assume your out of the hole when finished?
05:26 AM Tom_L: ?
05:26 AM Tom_L: i didn't copy the leadout
05:26 AM jthornton: to be safe I have a lead out move in case I'm cutting threads on the far side
05:26 AM Tom_L: oh, on the last pass i just block copied it
05:27 AM Tom_L: the 3rd one has it
05:27 AM Tom_L: but yes i knew it was clear of the hole
05:27 AM jthornton: I need to edit it so you can pick the xy location
05:27 AM Tom_L: it's handier
05:27 AM jthornton: and the z start along with the number of threads
05:28 AM Tom_L: but when i do external it goes the opposite direction so i have to move it in z
05:28 AM Tom_L: my z lead in is 1 thread above the helix start
05:29 AM Tom_L: you plunge to z then feed over to the helix
05:29 AM Tom_L: until i proved the macro i didn't care to plunge into the abyss
05:29 AM jthornton: sure I understand that
05:31 AM Tom_L: i'm just guessing but i think we're about .010" off
05:31 AM Tom_L: but
05:31 AM Tom_L: i wanted a snug thread on the spindle too
05:31 AM Tom_L: my 'gage' is a bolt
05:32 AM jthornton: what size is the thread?
05:32 AM Tom_L: UNF
05:32 AM Tom_L: 16
05:33 AM Tom_L: 3/4
05:35 AM jthornton: I still have a few tweaks to make on mine
05:35 AM abcabc__: hi,did the .ini homing velocity sign for home on +coord change from 2.7 to 2.8 git?
05:35 AM Tom_L: so do i but i've been distracted
05:36 AM Tom_L: spent all of sunday working on books
05:36 AM abcabc__: for same setup i need -v for 2.7 and + for 2.8
05:36 AM Tom_L: abcabc__ i didn't have to change mine
05:37 AM jthornton: me either
05:37 AM abcabc__: hm
05:38 AM Tom_L: jthornton, i'll be able to mess with it later this afternoon if you want me to move the model around and post it again
05:39 AM Tom_L: that's one that _has_ been run
05:42 AM jthornton: I'll add xy location so the location can be the same
05:43 AM jthornton: which one did you run?
07:19 AM Tom_L: the original is x+ y0 on the start of the helix
07:19 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/JT-SHOP/test_thread.ngc
07:20 AM Tom_L: there are 2 examples there
07:22 AM Tom_L: with X0 Y0 as the arc center
11:41 AM Loetmichel: *hmmpff* the BMW starts to get on my nerves... right xeonon lamp just went dead. still ran yesterday... maaan, why me? (because thats what happens when you buy a 2001 BMW 525i touring with 243000km on the odo for 2100 eur, dummie!)
11:43 AM jthornton: https://youtu.be/ZeeLTSOhI50
11:44 AM jthornton: that's only 151,000 miles barely broken in
11:49 AM tiwake: BMWs are crap
11:49 AM tiwake: expensive crap
11:56 AM Loetmichel: jthornton: indeed, the engine is good. but the exhaust isnt. and the electrics seem to have the one or other problem as well
11:56 AM Loetmichel: the overhead light and card reading lights flicker, too
11:58 AM Wolf__: at least its not a mercedes…
12:56 PM gregcnc: https://youtu.be/vnvcEui1uu4?t=160
01:00 PM gloops: probably sell for a lot more than wooden bowl, to some swanky place for a wedding or something
01:04 PM Tom_L: jthornton what's the code look like now?
01:12 PM CaptHindsight: someone report that German child to the authorities for doing something fun vs practical
01:25 PM CaptHindsight: self leveling way scraping spray
01:29 PM tiwake: CaptHindsight: started a new job
01:30 PM tiwake: this week was my first week working there
01:30 PM tiwake: working with CNC machines again... its rather nice
01:32 PM Rab: CaptHindsight, 1 part moglice : 100 parts epoxy solvent?
01:34 PM CaptHindsight: tiwake: what were you doing all this time before?
01:34 PM tiwake: CaptHindsight: manual machining in an electric motor repair company
01:35 PM tiwake: for 2.5 years
01:35 PM tiwake: I've done lots of both for a lot of years, so I don't have a lot of preference... just doing one thing a lot gets old
01:36 PM tiwake: well, a lot meaning 12 years or so
01:37 PM CaptHindsight: yeah, sometimes I get tired of something before I even start
01:37 PM tiwake: its a CNC machine job shop too, so lots of new parts, lots of setups, with a decent balance of production too
01:38 PM CaptHindsight: I'd never be able to do the same thing for very long
01:38 PM tiwake: no kidding
01:39 PM CaptHindsight: some people like consistency
01:39 PM CaptHindsight: same food, same job, same schedule
01:39 PM tiwake: consistently different
01:40 PM CaptHindsight: is it hot and humid down there yet?
01:40 PM tiwake: it does not really get humid here this far north texas
01:41 PM CaptHindsight: been jumping between the best weather (60's F and sun, no bugs) and 30 with flurries and high winds
01:41 PM tiwake: today I'm wearing my sweatshirt actually... supposed to warm up to 70's starting sunday for the rest of the week
01:41 PM CaptHindsight: 50+ mph winds today
01:41 PM CaptHindsight: 40's F but sunny
01:41 PM tiwake: CaptHindsight: you should move out here
01:42 PM tiwake: everything is better :3
01:42 PM CaptHindsight: it was glorious to be outside with no bugs in sight
01:42 PM mozmck: it was almost 90 F here a couple days ago - just balmy!
01:42 PM mozmck: tiwake: where in NT?
01:43 PM CaptHindsight: mozmck: where are you? Brazilian rain forest?
01:43 PM mozmck: north texas
01:43 PM mozmck: as tiwake said though, a bit chilly today :-0
01:43 PM gregcnc: there is north and south texas now, what happened?
01:44 PM CaptHindsight: I considered Austin at one time...
01:44 PM tiwake: mozmck: what part?
01:44 PM tiwake: oh, right you are a bit above DFW arnt you
01:44 PM mozmck: yeah, north of McKinney about 25 minutes
01:44 PM tiwake: lubbock is a fair bit west from there, much better weather
01:45 PM gregcnc: dang, chatching up on everything I was supposed to do during the week isn't working
01:45 PM mozmck: Ah, colder in winter, dryer... I like more water.
01:45 PM CaptHindsight: dry and warm is a possibility, no more heat and humidity for me
01:45 PM mozmck: Austin is pretty dry
01:46 PM CaptHindsight: but with all those central americans waiting just south of the border i would not feel safe :)
01:46 PM tiwake: CaptHindsight: you would like lubbock
01:47 PM methods_: it's a national emergency!!
01:47 PM CaptHindsight: oh noes!
01:47 PM methods_: someone send in the army to save all those texans
01:48 PM Rab: mozmck, dry compared to Houston, New Orleans, Honolulu...?
01:48 PM CaptHindsight: gregcnc: actually met 2 people from Kuwait in town here the other day....
01:49 PM CaptHindsight: gregcnc: they were shocked that i knew where it was and that they were speaking Arabic...
01:49 PM gregcnc: visiting or living here?
01:49 PM CaptHindsight: living
01:49 PM Rab: Austin is finished, not even a shotgun shack for under $400K and you have to dodge Teslas and e-scooters everywhere you go.
01:49 PM CaptHindsight: no police were called
01:50 PM gregcnc: i think people around here don't mind much
01:51 PM tiwake: Rab: https://www.youtube.com/watch?v=ETqkpVzy6jI
01:51 PM tiwake: also mozmck ^^
01:52 PM CaptHindsight: lol the video
01:56 PM CaptHindsight: https://www.practicalmachinist.com/vb/general-archive/turcite-vs-garlock-vs-moglice-vs-76409/
01:56 PM Tom_L: Rab, dunno if you saw this from yesterday: http://tom-itx.no-ip.biz:81/~webpage/cnc/Well_puller.jpg
01:56 PM tiwake: CaptHindsight: the place I work at new does a lot of monel machining
01:57 PM tiwake: s/new/now
01:57 PM CaptHindsight: tiwake: for electronics or??
01:57 PM tiwake: donno
01:57 PM CaptHindsight: what do the parts look like?
01:57 PM tiwake: donno
01:57 PM tiwake: lol
01:58 PM tiwake: I see a lot of monel materal, and people taking about monel parts and how annoying it is to machine
01:58 PM tiwake: never worked with the stuff myself... yet
01:59 PM Rab: Tom_L, I missed it, thanks for the (re)post!
01:59 PM CaptHindsight: https://www.mscdirect.com/betterMRO/metalworking/5-metal-cutting-tips-nickel-based-high-temp-alloys
01:59 PM CaptHindsight: https://www.youtube.com/watch?time_continue=1&v=MrZcqhARlHU
02:00 PM Rab: Tom_L, I did find this one, the double-headed design looks about right: http://mcgillmfg.com/pipe-elevators.html
02:01 PM CaptHindsight: "I keep a large bucket of ice cold water to pour on those considering projects that may be within enthusiasm but possibly beyond their present ability. Abilities and skills have to be developed like muscle tissue and that can be done only by doing "
02:01 PM Tom_L: i saw those yesterday but wasn't sure how well they worked
02:01 PM Tom_L: the double one is very similar to what i drew
02:02 PM Rab: Unfortunately it would need to be open on one side, because there's a signal cable threaded through the rods. But maybe that puller could be rebuilt with just a serious piece of plate on one side.
02:02 PM Tom_L: probably better since it's like a cam
02:02 PM CaptHindsight: is that used for pulling conduit over wires already in place?
02:03 PM Rab: CaptHindsight, no, for pulling well pipe. It'd be pretty heavy-duty for conduit.
02:03 PM Tom_L: that last 'hook' one is a jome
02:03 PM Tom_L: joke
02:05 PM Rab: They claim 3000lbs+. It's hard to gauge from the pix, but it could be 1/2" plate.
02:06 PM Tom_L: i'm pretty sure i exceeded that by quite a bit pulling my well pipe
02:06 PM Rab: The rods we use thread flush with no coupler, so unfortunately there's no feature to catch like with that type of pipe.
02:06 PM Tom_L: but it hadn't been pulled since i put it there
02:06 PM Tom_L: is it just the weight of the pipe you're pulling or are they stuck in dirt?
02:07 PM Rab: Our 1m rods are 14lbs, which is lighter than I thought...40m would be 560lbs dead weight. There's some resistance from the soil and sometimes the sensor packages are a bigger diameter than the rod size, though.
02:08 PM Tom_L: but it's not hard packed
02:08 PM Tom_L: the well had been in there for a good 25 yrs
02:09 PM Rab: Soil composition varies, sometimes it's wet clay which can exert a fair amount of pressure esp. since it's already been displaced by ramming the rods.
02:09 PM Tom_L: a chain by itself can pull quite a bit if it's wrapped over itself a few times
02:10 PM Tom_L: but they do tend to slip once in a while
02:10 PM Rab: Our ram only has 1m worth of stroke, so we have to move down every time a rod comes up.
02:11 PM Rab: So chain arrangement would be a time sink, and possibly a safety hazard.
02:11 PM Tom_L: one of those yellow ones with the double cam would be ideal. you could mod one side with a slot so you could flip it open to move the wires
02:12 PM Tom_L: data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAkGBw8NDQ4ODQ0PDQ0NEg0VDQ4PDw8NERIQFREWFxUSExMYHSggGBolGxMVIT0hJSk3Li4uFx8zODMtNygtLisBCgoKDg0NDw0PEi0ZFRkrLSsrKzc3LS0rKys3KysrKysrLS0tKy0rKysrKysrKysrKysrKysrKysrKysrKysrK//AABEIAOEA4QMBIgACEQEDEQH/xAAbAAEAAgMBAQAAAAAAAAAAAAAAAQYDBQcEAv/EAD0QAAICAQEGAwQHBwIHAAAAAAABAgMEEQUGEiExQRNRYSIycZEUI0JScoGxFTNikqHB0VPwJENUVYKD0v/EABUBAQEAAAAAAAAAAAAAAAAAAAAB/8QAFhEBAQEAAAAAAAAAAAAAAAAAABEB/9oADAMBAAIRAx
02:12 PM Tom_L: wow
02:12 PM Tom_L: what about something like that
02:13 PM Rab: I thought about rigging up a couple of opposing pipe wrenches; that's what we use to keep the rod from slipping below the surface anyway. But that sort of side load is definitely outside their scope of operation, and AFAIK pipe wrenches are cast iron...might snap and thwack somebody.
02:14 PM Rab: Tom_L, link doesn't work for me. I guess the browser has to have the resource loaded already.
02:14 PM Tom_L: https://d3vxa2wxxeijf4.cloudfront.net/catalog/product/cache/2/image/300x/9df78eab33525d08d6e5fb8d27136e95/L/e/Leviton_L8677.jpg
02:14 PM Tom_L: yeah that was a bad link
02:15 PM Rab: Chinese finger trap technology?
02:16 PM Tom_L: yeah
02:16 PM Tom_L: https://www.cablegrip.com/
02:17 PM Tom_L: 2nd one there has 2 pulls
02:17 PM Rab: The bigger ones look serious, but not sure how the signal cable escapes from that.
02:19 PM Tom_L: just thinking out loud.
02:20 PM Rab: I'm still thinking about designing my own. McMaster-Carr has cute little hydraulic cylinders with a threaded OD which would be a good fit, and gripping studs. Off-the-shelf (and no power required) would be great though.
02:21 PM Tom_L: how long would you be there pumping on a hydraulic cylinder before you got it out?
02:23 PM Rab: We use a hydraulic ram on a truck to push the rods and pull them out, so there's already hydraulic power available.
02:23 PM Tom_L: ok
02:25 PM Rab: We are doing something similar to this: https://en.wikipedia.org/wiki/Cone_penetration_test
02:27 PM Rab: Here's what's inside the type of truck pictured. It's a high tech fancy thing that threads and pushes/pulls the rods with minimal operator interaction. Air conditioning and so on. We are not so luxuriously appointed. https://www.apvandenberg.com/mediadepot/IMG4595.jpg?website=implementatie&width=1024&image=2478473a9594.jpg
02:28 PM Tom_L: well the. i'd go for the ac truck first!
02:29 PM Tom_L: then*
02:38 PM Elmo40: mobile testing?
02:38 PM Elmo40: that looks cool
02:48 PM SpeedEvil: ====================================================================================================
02:56 PM CaptHindsight: SpeedEvil: my screen is too fuzzy, was that a flood of =?
02:57 PM Jymmm: CaptHindsight: >>><<><><<<><><><><><<<<><<>><><><><>>>>><<<><><><>>><><<><><>
02:57 PM CaptHindsight: omg!
02:59 PM CaptHindsight: I'm all for using only expressions in here for the day that a 13 year old would use
03:00 PM SpeedEvil: Sigh.
03:01 PM CaptHindsight: or worse, IRC with emojis
03:02 PM CaptHindsight: https://999ktdy.com/230-new-emojis-coming-out-this-year/
03:03 PM methods_: 🍆
03:03 PM skunkworks: ¯\_(ツ)_/¯
03:03 PM methods_: ^^
03:04 PM skunkworks: Found the smell in the fridge!
03:04 PM methods_: ಠ_ಠ
03:04 PM methods_: <|>
03:04 PM methods_: /ω\
03:04 PM Elmo40: I use Hexchat. I don't see 'emojis'.
03:04 PM CaptHindsight: skunkworks: I found one earlier today
03:04 PM methods_: the balls of disapproval
03:04 PM Elmo40: O_o
03:05 PM skunkworks: (angry oranges...)
03:06 PM CaptHindsight: 🐉
03:06 PM CaptHindsight: oh sorry meant 🎉
03:07 PM Jymmm: CaptHindsight: telnet://towel.blinkenlights.nl
03:08 PM CaptHindsight: time for a hike, bbl
03:13 PM CaptHindsight: https://www.netpris.net/carbonated-energy-drink-with-a-beer-flavor.html
03:14 PM CaptHindsight: came across this at the deli earlier today
03:14 PM CaptHindsight: tastes like a light beer
03:14 PM gregcnc: Polish deli?
03:15 PM CaptHindsight: gregcnc: yes http://kalinowskideli.com/
03:17 PM Loetmichel: *BELCH* maybe, just maybeee a full can (1000gr) of chilli con carne was a bit much as a dinner for one... will i ever learn to not eat until its all empty? ;)
03:17 PM CaptHindsight: best weird soda lately https://brooklynbrainery.com/blog/taste-test-tarkhun-aka-tarragon-soda
03:26 PM Rab: What's a good roughing end mill for mild steel (low-speed manual milling)? 4-flute HSS, or cobalt, or?
03:27 PM Elmo40: 2-flute wavey
03:27 PM Elmo40: HSS is fine for mild steel. Carbide is better.
03:27 PM tiwake: Rab: how rough? cob endmill?
03:27 PM methods_: 2 flute for steel?
03:27 PM Elmo40: why not?
03:27 PM Elmo40: it is a rougher
03:27 PM tiwake: cob endmills are much better as cobalt
03:27 PM Elmo40: i love the 3-flute endmills, though. They are tough and can hog away material.
03:27 PM tiwake: when cutting steel
03:28 PM methods_: i normally only use 2 and 3 flutes on alum
03:28 PM tiwake: the chips tend to get in the way and chip out carbide
03:28 PM Rab: tiwake, just want maximum material removal for the limited power I have (MT2 shank).
03:28 PM Loetmichel: carbide is really sensitive to "rough" hand milling though
03:28 PM tiwake: that too
03:28 PM Loetmichel: HSS can take hits a lot better
03:28 PM Elmo40: Loetmichel, true. it is more brittle.
03:28 PM Rab: Elmo40, I've heard 3-flute is very good for Al.
03:28 PM tiwake: if you don't have good chip removal then carbide is a bad idea in general
03:28 PM Elmo40: 3-flute is good for anything
03:29 PM Elmo40: it is all about the grind of the cutting edge
03:29 PM Elmo40: any flute is good, depending on the condition you use it
03:29 PM Loetmichel: tiwake: i mill my Aluminium sheets with a 2mm carbide 2flute
03:29 PM Elmo40: you can use a 10-flute on anything but don't expect it to hog away material
03:29 PM Loetmichel: but at 24lrpm and with a CNC router
03:29 PM Loetmichel: wouldt try that with hand feed and lower rpm to be honest
03:30 PM Rab: tiwake, yeah, I mean cob endmill.
03:30 PM Elmo40: hand feed is death to tooling.
03:30 PM tiwake: aluminum is kind of special
03:30 PM Elmo40: certain aluminums
03:30 PM Elmo40: not all
03:30 PM Loetmichel: s/lrpm/krpm
03:30 PM tiwake: enh
03:30 PM Elmo40: some machine very well
03:30 PM tiwake: 7075 is pretty nice to machine too
03:30 PM Elmo40: some are like goop.
03:30 PM Loetmichel: tiwake: 6061 is ok, too
03:30 PM tiwake: worked with 3000 series for airplanes
03:30 PM Loetmichel: only alu i dont like is AL99,9 and AlMg1
03:31 PM tiwake: didn't seem bad either
03:31 PM Elmo40: lovely material to cut. drilling is a different issue. i find i burn up drills quickly with 7075.
03:31 PM Loetmichel: AlMg3 is ok though
03:31 PM Loetmichel: Elmo40: use carbide drills ;)
03:31 PM Elmo40: very little give with 7075. very rigid.
03:31 PM Elmo40: 6061 and them are softer
03:31 PM tiwake: yeah, 7075 is hard enough for carbide to be happy with it
03:31 PM Loetmichel: yeah, but 7075 dosent like vibrations
03:31 PM Elmo40: yes
03:31 PM Elmo40: nope
03:32 PM Loetmichel: so its no good for "work stressed" parts
03:32 PM Elmo40: hence why it is used as support components in airplane wings
03:32 PM Loetmichel: it breaks easily
03:32 PM tiwake: Rab: just get a cheap cobalt cob endmill... where you get it from does not matter that much
03:32 PM Elmo40: but not made for the actual stuts in the wing
03:32 PM Loetmichel: indeed
03:33 PM Elmo40: you want a solid, light and rigid part, 7075. you want one to handle flexing a little better, 6xxx series.
03:33 PM Elmo40: motorcycle companies found that one out.
03:34 PM tiwake: what are aluminum engine heads made from?
03:34 PM Tom_L: pop cans
03:34 PM Rab: tiwake, roger, thanks!
03:34 PM Elmo40: they make the chassis with 6061 but any place for bearings (swing arm area, neck for forks...) are welded in 7075
03:35 PM Elmo40: tiwake, casting of various Al mixes.
03:35 PM Elmo40: but you'll find people making billet heads with 6061
03:35 PM tiwake: Rab: if you are only using it once, then cheaper high speed steel is fine... but I generally try to stick to cobalt... its just so much better and longer lasting
03:36 PM XXCoder: heh forgot what alum # it was, but once dropped a alum sheet part couple inches and bent it. scrapped.
03:36 PM Elmo40: milling mild steel is a breeze. 2 or 3-flute for roughing. having low Hp means you can't load that chip too much.
03:36 PM XXCoder: bent was at ear with drilled hole
03:36 PM Loetmichel: Elmo40: 7075 is like cast steel. very rigid and strong, but try to bend it and it shatters
03:36 PM Elmo40: can't straighten Al all that easily.
03:36 PM XXCoder: know whats nightmare? stainless steel that was baked first before doing anything to it.
03:37 PM tiwake: donno
03:37 PM tiwake: 416 stainless is pretty freaking nice to machine
03:37 PM XXCoder: Elmo40: easily can strighten but memory effect means its scrap anyway
03:37 PM Elmo40: baked as in annealed? or hardened
03:37 PM XXCoder: hardened
03:37 PM Loetmichel: XXCoder: stainless work hardenes
03:37 PM XXCoder: extremely hardened.
03:37 PM Loetmichel: its a PITA to drill or bend
03:38 PM Loetmichel: you only have ONE chance to cut thru
03:38 PM Elmo40: certain 3-series stainless also collects on tooling. horrible to ream unless you have proper coolant/lube
03:38 PM tiwake: it does depend on the stainless though... I think 303 and 416 are the only two that are really nice to machine
03:38 PM Loetmichel: once the drill bit gets even remotely dull you are done for
03:38 PM tiwake: oh, I guess 17-4 too
03:38 PM XXCoder: whatever steel it was it was nightmare yeserday.
03:38 PM XXCoder: 26 parts. problemic parts, problemic program, problemic machine
03:39 PM Loetmichel: V2A feels like iconel to me in that regard
03:39 PM Elmo40: couldn't press START and walk away? those jobs are annoying.
03:39 PM Loetmichel: v4a is even worse
03:39 PM tiwake: Loetmichel: thats what she said
03:39 PM XXCoder: Elmo40: lol know what makes it worse? im deaf so I cant tell if its cutting good or not after afterwards
03:39 PM XXCoder: it vibrates so hard either way
03:40 PM XXCoder: it kept killing facemill lol
03:40 PM Loetmichel: XXCoder: ouch. i can not imagine that
03:40 PM XXCoder: i check tool each time.
03:40 PM Loetmichel: i once worked as a "machinist" for thyssen
03:40 PM XXCoder: so i avoid destroying facemill entired
03:40 PM XXCoder: entirely
03:40 PM Loetmichel: had to put crankshafts into a big CNC lathe
03:41 PM Loetmichel: every 3 hours
03:41 PM Loetmichel: so i learned Gcode programming
03:41 PM XXCoder: big rod eh
03:41 PM Tom_L: a monkey can do that
03:41 PM Tom_L: :)
03:41 PM Loetmichel: and ramped up a few feeds and speeds
03:41 PM XXCoder: can monkey even lift it? heh
03:41 PM Tom_L: a big one
03:41 PM Loetmichel: ... result was that you could feel the lathe running thru the entire fabrication hall ;)
03:41 PM XXCoder: yeah adult one is quite strong
03:42 PM XXCoder: lol thats crazy
03:42 PM Loetmichel: but i did 4 crankshafts a shift
03:42 PM Tom_L: it wasn't mounted on vibration dampeners?
03:42 PM Loetmichel: couldnt imagine it without hearing the tool palte getting dull though
03:42 PM Loetmichel: plate
03:42 PM XXCoder: tom i run a61 sometimes, and sometimes you can feel its rapids 3 feet away
03:42 PM Loetmichel: Tom_L: it was. you could feel it regardless ;)
03:43 PM XXCoder: a61 is expensive machine, and well damped
03:43 PM Loetmichel: it was a 5m long crankshaft and a CNC lathe that could accomodate that beast with ease
03:44 PM Tom_L: for a boat or train?
03:44 PM XXCoder: when 500 pound pallet and parts move inch then stop instantly you feel it.
03:44 PM Loetmichel: ship
03:45 PM Loetmichel: one day the programmer of the original program came down: "show me the other program!"
03:45 PM Loetmichel: <- "other program? we are not allowed to change any program!"
03:46 PM XXCoder: interesting. at my work people is expected to stuff they know, and dont do stuff they dont know
03:46 PM Loetmichel: programmer: "Cut the crap, i could feel the machine running up in the offices. show me it. it will not be your problem!"
03:46 PM XXCoder: i have changed programs once a while, pretty uncommon tho.
03:46 PM Loetmichel: XXCoder: it was a school holiday job. i was 16 at the time
03:46 PM Loetmichel: and it was indeed a "monkey" job
03:47 PM XXCoder: lol you invented a building vibrator
03:47 PM XXCoder: oh interesting
03:47 PM gregcnc: due to balance or ???
03:47 PM Loetmichel: he looked at the program told me where i overshot and did to much, then advised me to NOT let anyone else run that program.
03:47 PM Loetmichel: due to balance and chip load
03:48 PM Loetmichel: you could see the boronitirde plate glow under the 1" coolant stream
03:48 PM XXCoder: man thats crazy chipload lol
03:49 PM Loetmichel: thats why he advised me to not let that program be run by the other shifts
03:49 PM Loetmichel: they couldnt discern a "good plate" from a chipped one just by the sound the machine was making
03:50 PM Loetmichel: i could, having done machining before
03:50 PM XXCoder: you probably saved them good money
03:50 PM Loetmichel: yes
03:50 PM Loetmichel: about 30% shorter process time
03:50 PM XXCoder: hours of machine time isnt something to sniff at
03:50 PM gregcnc: boron nitride as in CBN?
03:50 PM Loetmichel: yes
03:50 PM gregcnc: with coolant?
03:50 PM Loetmichel: yes
03:50 PM Loetmichel: not my idea
03:50 PM Loetmichel: was that way when i got there
03:51 PM Loetmichel: i just upped the feeds and DOC a bit
03:51 PM XXCoder: that was one of issues I THINK, yeserday. facemill inserts looked like type that shouldnt touch coolant but air blast, but program used coolant
03:51 PM Loetmichel: the plates were NOT CHEAP... 120DM a piece IIRV
03:51 PM Loetmichel: IIRC
03:51 PM XXCoder: i dont know enough to change over and didnt want to make a mistake
03:52 PM Loetmichel: and i usually used one up per crankshaft
03:52 PM XXCoder: how do you know if inserts must be air blasted and not coolant sprayed?
03:52 PM gregcnc: depends on what they are made of
03:53 PM XXCoder: hmm ok
03:53 PM Loetmichel: generally: carbide of any sort dosent like shocks
03:53 PM XXCoder: yeah cutting felt nasty, but then hard metal cutting always feels so
03:53 PM Loetmichel: but you CAN use coolant, you just have to be sure that you switch it on before cutting AND have it running until the plate cooled down to room before shutting off
03:54 PM XXCoder: hm program had 3 parts, the facemill, the keyway cutter, then finally basic endmill
03:55 PM XXCoder: its to make block prepped for hold on techi-grip
03:55 PM XXCoder: i like the techi-grip system, its great system.
03:56 PM Loetmichel: and btw: i was inprecise
03:56 PM Loetmichel: it wasn the tool that was glowing red under the coolant stream
03:56 PM Loetmichel: it was the spray of swarf that was red hot
03:56 PM XXCoder: yeah i was guessing it was chips
03:56 PM XXCoder: yeah. if tool itself was hot you seriously messed up
03:57 PM XXCoder: (redhot not just hot)
03:57 PM Loetmichel: so it glowed under the coolant, make it look like a little volcano ;)
03:57 PM XXCoder: you ever seen cermtic tool cutting inocol?
03:57 PM Deejay: gn8
03:59 PM Loetmichel: nope
03:59 PM gregcnc: Ceramic runs dry
03:59 PM gregcnc: https://www.youtube.com/watch?v=1VrC1Qa-cN0
04:01 PM Loetmichel: XXCoder: the only time i worked with iconel was on big construction earthmovers
04:01 PM XXCoder: ceramic tools love heat
04:01 PM XXCoder: hotter, stronger it is
04:01 PM Loetmichel: that stuff is NASTY
04:02 PM XXCoder: gregcnc: did you know they are working on cermtic endmills?
04:02 PM Loetmichel: i did ignite a bit of Ti allow at an ex company though with ceramic inserts
04:02 PM XXCoder: i saw one thats half cer,mtic and another thats entirelyu cermtic
04:02 PM gregcnc: ceramic endmills have existed for years
04:02 PM XXCoder: oh really? hmm how many years? heh
04:02 PM Loetmichel: ... then i knew why there was a bucket of sand next to the machine ;)
04:02 PM Loetmichel: s/allow/alloy
04:03 PM XXCoder: man that looks like lava pouring off part
04:03 PM XXCoder: love that video
04:03 PM Loetmichel: it kinda IS lava
04:03 PM Loetmichel: very short of melting completely in that video
04:09 PM XXCoder: fancy heh
04:24 PM XXCoder: wow https://www.theguardian.com/science/2019/mar/17/nile-shipwreck-herodotus-archaeologists-thonis-heraclion#img-2
04:53 PM gregcnc: Oh gee, I may have found another project I can't live without. depends if I'm willing to put up with more oddball mill holders and the price
04:54 PM XXCoder: projects all way down ;)
05:27 PM _unreal_: hello
05:30 PM XXCoder: hey
05:57 PM XXCoder: gloops: got any tips on finding compitable parts?
05:57 PM XXCoder: companies use weird parts serial numbers and i cant find if its compitable with my car.
05:58 PM gloops: XXCoder, hmm tricky, i usually go for visual match - any photos?
05:59 PM XXCoder: thats the problem my car only has mirrored part lol
05:59 PM XXCoder: https://parts.ford.com/shop/en/us/mirrors/mirror-assy-rear-view-outer-6382005-1 seems to match mine
05:59 PM XXCoder: but it dont seem to have compitable cars list
06:01 PM XXCoder: oh! https://parts.ford.com/shop/en/us/mirrors/cover-6381141-1
06:01 PM gloops: yeah theres usually a list of compatible
06:02 PM XXCoder: on that site its just 17D743
06:02 PM gloops: there is a 'select vehicle' button top right
06:02 PM XXCoder: on amazon its CP9Z-17D743-BA
06:02 PM gloops: on last link
06:02 PM XXCoder: makes it confusing
06:03 PM gloops: https://www.ebay.co.uk/itm/Ford-Genuine-Parts-CK4Z-17D743-B-1x-2121016-Cover/163402723208?
06:04 PM XXCoder: my car is focus 2012
06:05 PM XXCoder: https://www.ebay.com/itm/Mirror-Cap-Smooth-Black-Paint-To-Match-Driver-Side-Left-LH-for-Escape-Focus-New/372569789634?fits=Model%3AFocus|Make%3AFord&hash=item56bee3d4c2:g:f8gAAOSw0YVcW0xY
06:05 PM gloops: i thought it looked like a focus mirror lol, but didnt think america had ford focus
06:06 PM XXCoder: 2019 is last year I think
06:06 PM XXCoder: usa dont buy smaller cars anymore
06:06 PM XXCoder: thats why I got mine fairly cheap for very low mileage
06:06 PM gloops: there is a compatible vehicles list on the ebay links
06:06 PM XXCoder: yathats why i linked it
06:07 PM gloops: so you could at least work out which code is yours
06:07 PM XXCoder: that one is painted to maych my car so not bad. 20 bucks isnt too bad
06:07 PM XXCoder: the other parts is harder :(
06:07 PM XXCoder: its also missing light on mirror
06:07 PM XXCoder: traffic barrel ripped cover and light off my mirror but thankfully mirror assembly is fine
06:08 PM XXCoder: i got trapped between semi and ever-tightening traffel barrels
06:08 PM XXCoder: i had to brake hard and change lines but i tagged 2 barrels before i got out of trap
06:09 PM gloops: well, losing a mirror is probably better than a scrape down the wing/door
06:09 PM XXCoder: second one tagged the side but it just left marks
06:09 PM XXCoder: i rubbed em out so it wasnt too bad
06:11 PM gloops: i usually try ebay first for parts - if it isnt in local car spares shop, if its something i need right away ill try local breakers yards
06:12 PM gloops: this is close to a city though so plenty of breakers around
06:12 PM gloops: at least you can take your part and compare it
06:12 PM XXCoder: hm
06:13 PM XXCoder: seems light is part of assembly
06:13 PM XXCoder: looing if can buy seperately
06:13 PM gloops: so its the whole thing to buy
06:13 PM XXCoder: part 17682
06:13 PM gloops: ahh
06:14 PM XXCoder: ebay seperate!
06:14 PM XXCoder: what does LH side mean?
06:14 PM gloops: the spares shop here hates ebay lol
06:14 PM gloops: left hand...so kerb side?
06:14 PM XXCoder: ah need right one looking
06:15 PM gloops: would be kerb side here anyway
06:16 PM XXCoder: wtttf ALL left so far!
06:16 PM gloops: lol
06:17 PM gloops: they probably sold all the rights
06:17 PM XXCoder: https://www.fordpartsgiant.com/parts/ford-lamp-asy_cp9z-13b375-a.html
06:17 PM gloops: nobody ever hits left mirror lol
06:17 PM XXCoder: yeah not very likely
06:17 PM _unreal_: I assume non of you do pic programming
06:18 PM gloops: whats that _unreal_?
06:19 PM _unreal_: ? I assume no one in here knows how to program in pic language
06:19 PM XXCoder: what is pic programming?
06:20 PM gloops: no i dont
06:20 PM _unreal_: hehe
06:20 PM XXCoder: gloops: dude ford parts website is as cheap as ebay in general
06:20 PM XXCoder: pretty good deal
06:21 PM gloops: well its pays to search around
06:22 PM XXCoder: problem is they does NOT say if its for left or right at all
06:22 PM XXCoder: it does actually but i cant find other side
06:26 PM gloops: bedtime for me anyway
06:58 PM Tom_L: _unreal_ i did pic but switched to avr
06:58 PM Tom_L: do hardly none now
06:59 PM Tom_L: what was the real question behind that one?
07:00 PM Tom_L: picbasic or c?
07:00 PM Tom_L: i hardly remember anything about either one now
07:26 PM _unreal_: Tom_L, :)
07:26 PM jthornton: I pushed the latest to thread_mill
07:26 PM _unreal_: I've always wanted to convert come code from one pic to an other pic
07:26 PM _unreal_: ? minus "come"
07:26 PM jthornton: https://paste.ubuntu.com/p/NmsmG7NQTQ/
07:27 PM jthornton: g code for 1 thread and 3 passes
07:39 PM Tom_L: jthornton, how do i pull the changes?
07:40 PM jthornton: git pull from the thread_mill directory
07:44 PM Tom_L: where did you start the main helix?
07:44 PM Tom_L: or did you leave it like it was?
07:53 PM jthornton: hmm I defined the start z to I forget lol
07:53 PM jthornton: I think it was 1.5 thread pitches down from z0 so one full thread up to z0
07:54 PM Tom_L: i think it's gonna be difficult to compare with the different leadin moves
07:56 PM Tom_L: oh i was gonna ask if you had a place to add 'comp' in the mix
07:56 PM Tom_L: if it was a bit tight you could come back and add say .002" or such to the helix
07:57 PM Tom_L: or just run comp on the machine..
07:57 PM jthornton: right now the hole diameter controls the final pitch diameter so you can adjust that way but I'm thinking of a better way
07:58 PM jthornton: you could just have a single pass and ignore the lead in and lead out arc
07:58 PM jthornton: I used your tool size for 3/4 threads
07:58 PM Tom_L: the .595" ?
07:59 PM Tom_L: that's from their site but i measured it as well
07:59 PM jthornton: that sounds like the tool diameter not the hole diameter
07:59 PM Tom_L: that's what i meant
07:59 PM Tom_L: the tool diameter
07:59 PM jthornton: yea their OD and your neck OD and the cut length
08:00 PM Tom_L: i forget what i used for the ID of the hole
08:00 PM jthornton: imho it should really use the pitch diameter...
08:00 PM Tom_L: i'm pretty sure i did
08:01 PM Tom_L: the basic minor diameter is .6823"
08:01 PM Tom_L: for internal threads
08:01 PM jthornton: every formula I've found is from the minor or major diameter
08:01 PM Tom_L: for external threads it is .6733"
08:03 PM jthornton: time to retire to the living room
08:03 PM Tom_L: later
08:04 PM Tom_L: http://vedge.org/tap-inch.html
08:05 PM Tom_L: not the one i used but similar
09:38 PM gregcnc: Minor diamater has nothing to do with pitch diameter
09:40 PM Tom_L: PD is the midpoint
09:41 PM Tom_L: minor diameter is the root diameter and i use it to calculate the pass divisions
09:41 PM Tom_L: jt used percentages which is probably better
09:42 PM Tom_L: i may work on mine again one day
09:43 PM Tom_L: gregcnc, what would you calculate it from?
10:01 PM XXCoder: we know when we advanced in computing tech so much when guy can put windows 3.1 in bios. https://sakamoto.pl/weblog/07-windows-3-flash-edition/
10:16 PM XXCoder: man!
10:17 PM XXCoder: wish my cnc router was setup and running. https://hackaday.com/2019/02/19/honda-key-fob-turned-cnc-work-of-art/