#linuxcnc Logs

Feb 21 2020

#linuxcnc Calendar

12:37 AM X704 is now known as tiwake
01:02 AM X704 is now known as tiwake
01:45 AM enleth: Anyone here ever used a Bammesberger surface grinder? Found one cheap, looks like a nice compact machine.
01:46 AM enleth: no power feeds, old style 50s design, seems perfectly fine for small parts
01:47 AM X704 is now known as tiwake
02:00 AM X704 is now known as tiwake
02:10 AM Deejay: moin
02:15 AM SpeedEvil: https://www.youtube.com/watch?v=W8p9HfSLvEA @6:12 highly skilled workers needed at SpaceX
02:16 AM SpeedEvil: Moin
02:54 AM X704 is now known as tiwake
03:52 AM X704 is now known as tiwake
03:57 AM X704 is now known as tiwake
04:20 AM XXCoder: SpeedEvil: what kind of workers?
04:24 AM XXCoder: its not captioned
04:26 AM XXCoder: twisted my ankle at work today
04:26 AM XXCoder: "wonderful". expecially since I had to move fairly heavy alum blocks.
04:40 AM pink_vampire: hi
04:41 AM XXCoder: hey pink
04:41 AM pink_vampire: hi XXCoder
04:42 AM XXCoder: whats up
04:45 AM pink_vampire: I 3d printed assembled component for the 3d pen (2 parts)
04:46 AM XXCoder: cool. cant wait to see final form
04:46 AM XXCoder: i got cables for laser printer :D so i can set wiring to be better. no snags and nicely held in place
04:47 AM pink_vampire: laser printer?? SLS??
04:49 AM XXCoder: nah laser engraver
04:49 AM XXCoder: very weak laser heh 2amp
04:50 AM pink_vampire: I did also a modification to a stepper motor
04:50 AM XXCoder: yeah? whats you do?
04:51 AM pink_vampire: cutting a slot in the case and route the wires to the back, then covered the hole with 3d printed part
04:51 AM XXCoder: interesting
04:52 AM XXCoder: avoiding magnets I guess
04:55 AM pink_vampire: https://i.imgur.com/JrMicoy.png
04:56 AM XXCoder: nice
04:57 AM pink_vampire: some people use good file, I just did it on the mill
04:59 AM XXCoder: more precise
04:59 AM Tom_L: morning
04:59 AM pink_vampire: and faster
05:02 AM XXCoder: hey tom
05:14 AM jthornton: morning
05:15 AM pink_vampire: hi everyone
05:19 AM XXCoder: blew up another loan. 3 to go
05:19 AM XXCoder: cant wait to finally finish
05:21 AM pink_vampire: Print Time Left: 00:58:15
05:30 AM jthornton: blew up?
05:45 AM Loetmichel: blew up?
05:46 AM XXCoder: yep, paid off lol
05:46 AM Loetmichel: ah
05:46 AM Loetmichel: :-)
05:46 AM Loetmichel: <- has no loans.
05:46 AM XXCoder: orginially i had 7 college loans
05:47 AM Loetmichel: and about 20k€ on the daily account. should really invest that.
05:47 AM p0g0_: XXCoder, congrats, that's always a long haul.
05:47 AM XXCoder: yeah
05:47 AM Loetmichel: <- not rich but having no debt makes a comfortable sleeping ;)
05:49 AM Loetmichel: wife had luck, too. she paid her "bafög" off in one single payment because she landed a big deal early in her sales carrer and got a few 50k in percentage from that deal
05:49 AM Loetmichel: bafög is the german version of college/university loan
05:49 AM XXCoder: lol man
05:49 AM XXCoder: my income is not nearly that high
05:49 AM XXCoder: my final payment for that loan was $300
05:50 AM XXCoder: and its slightly straining high payment but can budget
05:50 AM Loetmichel: XXCoder: my wife has ~10k before tax a month
05:50 AM XXCoder: yeah thats much higher than mine :)
05:50 AM Loetmichel: that 50k "extra" was because she got a 2M deal in
05:51 AM XXCoder: im in kinda bad position really, job is good but my back is slowly getting worse, so are some other health aspects
05:51 AM XXCoder: i can go maybe 2 to 5 years more
05:52 AM XXCoder: which is way too short lol
05:52 AM Loetmichel: and at that time she was on "percentage". no idea how that is described correctly when you get 1,5% of the deals you get in in bonus
05:52 AM XXCoder: share of deal I guess
05:53 AM Loetmichel: good thing german BAFÖG is only due for payback once you get over a certain income.
05:53 AM XXCoder: i delayed my repayment for over 5 years due to lack of job to pay for it
05:54 AM Loetmichel: also the state lets you off easy if you can pay it in one payment. she paid less than half than what she was due, the rest was a "gift" for early payment
05:54 AM XXCoder: nice :)
05:55 AM Loetmichel: i assume american citizen? so how does that work there with the college loans?
05:55 AM Loetmichel: do you get a bank to loan you money or is it a state based loan as in germany?
05:55 AM XXCoder: man theres 3 things
05:55 AM XXCoder: grants, no interest loans from goverment (while in college) and more normal interest loans
05:56 AM XXCoder: i avoided all of last type
05:56 AM Loetmichel: ah
05:56 AM XXCoder: one year it come up massively short, I ate a lot of ramen
05:56 AM p0g0_: Loetmichel, fwiw, that stuff has gone way south over the years- it used to be a sane deal 40+ years back, now it's a short trip to where XXCoder is.
05:56 AM Loetmichel: bafög is "no interest lan from government"
05:56 AM XXCoder: its no interest only when in college, once repay,enmt theres interest
05:57 AM Loetmichel: ah
05:57 AM Loetmichel: i see
05:57 AM Loetmichel: here its no interest period
05:58 AM Loetmichel: as i said: you can delay the payback if you dont earn enough without accruing any more debt.
05:58 AM XXCoder: college now is pretty high priced and pretty nasty
05:58 AM XXCoder: greed :(
05:58 AM XXCoder: thats why bernie is pushing free college also
05:58 AM Loetmichel: problem is that "BAFÖG" is only granted if you are egligble, aka: they check if your parents earn enough to support you and if you have savings that you can use
05:59 AM Loetmichel: the college/university in germany IS free
05:59 AM Loetmichel: the BAFÖG is for living/rent/etc
05:59 AM XXCoder: damn heh
06:00 AM Loetmichel: ok, mostly free
06:00 AM Loetmichel: usually universitys take a 100-200 eur "service/administration fee" each semester
06:01 AM XXCoder: honestly compared to my 40k approx total loans thats free basically
06:01 AM XXCoder: it covered none of my rent and food etc
06:01 AM Loetmichel: but that usually includes a local public transport ticket, so its probably only 50 eur admin fee
06:01 AM XXCoder: just college and books
06:03 AM XXCoder: if started now its closer to $100k I think now
06:03 AM p0g0_: I could earn my way through college in the way back- that's just not possible anymore in the US in most places, the tax averse affluent have declined to support investing in human capital anymore.
06:04 AM XXCoder: p0g0 yeah early days you could just work in summer and cover college expenses + food + rent for rest of year
06:04 AM Loetmichel: p0g0_: in germany you have bafög so you dont have to work for your living while studying.
06:04 AM p0g0_: Now, there's starting to be a few Unis in the US that offer $0 tuition, but they tend to have geographic or financial rules that really limit things.
06:05 AM p0g0_: Loetmichel, I so get the value to the workd of educating folks, it's just greed that's overtaken the US>
06:05 AM p0g0_: *world
06:05 AM XXCoder: usa have one of worse symtoms
06:05 AM Loetmichel: usually a german master degree takes 6 years, so thats still quite a bit of debt
06:05 AM p0g0_: yep
06:06 AM Loetmichel: but not nearly as much as when you have to pay $40k tuition on top ;)
06:06 AM XXCoder: yep
06:07 AM Loetmichel: only thing i hate: they got rid of the "Dipl.Ing." degree and made it bachelor/master
06:07 AM Loetmichel: has not quite the same "ring" to it
06:08 AM Loetmichel: <- would have done a Dipl,Ing Etech just for fun. but the master is not as appealing to hang on a wall
06:08 AM Loetmichel: you can do that here in evening school, too. but takes a long time to get the degree that way
06:10 AM Loetmichel: evening school= after work classes
07:17 AM X704 is now known as tiwake
07:24 AM X704 is now known as tiwake
07:56 AM X704 is now known as tiwake
08:09 AM X704 is now known as tiwake
08:12 AM SpeedEvil: XXCoder: i was referring to the video at the time mentioned. Guy banging on a pile of sand with a shovel.
08:38 AM jymmmm: good monring
09:15 AM perry_j1987: hows it going
09:21 AM perry_j1987: need to get a bout 40 more tappered drill chucks for this mini lathe
09:21 AM perry_j1987: getting tired of changing tools in them all the time heh
09:27 AM SpeedEvil: 40 cones with press-fit holes for the drills.
09:34 AM unterhaus: any U.S. types bought any sheet steel recently? I want to make a backsplash for my lathe
09:35 AM unterhaus: curious how much it costs. Mcmaster price seems ridiculous
09:38 AM Loetmichel: maaan. i HATE undocumented software. Took me two workdays (16++ hours) to get those four 3dprinters and four Webcams running and configured correctly... finally... now the apprentice has to assemble the third, then its all good for production :-) -> http://www.cyrom.org/palbum/main.php?g2_itemId=17687&g2_imageViewsIndex=1
09:47 AM unterhaus: almost everyone has given up on documenting their software now that help files have replaced paper manuals
09:47 AM perry_j1987: chassing an issue right now. using a drillbit on the tailstock after a centerdrill thats .15 smaller than the reamer I have but the bit is making a hole larger than my reamer lol
09:47 AM perry_j1987: peck drilling too
10:06 AM gregcnc: everyone gave up on documentation after changing to user supported model
10:08 AM gregcnc: perry_j1987, if holding a reamer rigidly it requires perfect alignment otherwise a floating reamer holder
10:09 AM perry_j1987: i dropped down one size drill bit and now i can ream it to size right
10:09 AM perry_j1987: that must be a bad bit
10:09 AM gregcnc: it was .15mm i assume?
10:09 AM perry_j1987: just one size down in the number bits
10:09 AM perry_j1987: whatever increments they are
10:09 AM gregcnc: the difference between drill and reamer
10:10 AM perry_j1987: let me check
10:11 AM perry_j1987: i dont know im in bizzaro land
10:12 AM perry_j1987: just remeasured the new bit and its .05 smaller than the reamer
10:12 AM gregcnc: .05 units
10:12 AM perry_j1987: mm
10:13 AM gregcnc: just checking, could be miles
10:23 AM roycroft: keep in mind that twist drills make random-shaped, oversize elongated holes
10:23 AM roycroft: which is why you need to ream when you want an accurate bore
10:23 AM roycroft: so measuring the drill itself is not an indicate of the size bore you'll get with it
10:23 AM roycroft: indication
10:41 AM JT-Shop: roycroft, do you use a Festool sander?
10:48 AM gregcnc: why don't full profile inserts give a spec for the class of thread they produce?
11:03 AM perry_j1987: this reamed hole and pin slide in like butter
11:03 AM perry_j1987: so much fun! heh
11:03 AM perry_j1987: when knowing the crappy machine that i used to produce it heh
11:11 AM Vitreous: i'm planning a retrofit of a mill that has a Dynapath Delta 20 on it now to something modern. somebody here said the main thing is to ensure the new controller is as safe as the old. is that anything more than functional limits, and the e-stop?
11:15 AM Vitreous: also, im torn between using the driver amplifiers and dc brushed servos on it now, versus just starting fresh and putting AC servos and drives.
11:16 AM unterhaus_: is there any trick to using a gun drill on a lathe?
11:16 AM Vitreous: unload the gun first
11:17 AM unterhaus_: there is always a catch
11:18 AM unterhaus_: all the videos I find on youtube are people making flutes
11:19 AM unterhaus_: making a spindle with a hole for vacuum. I think it has to be about 12" long.
11:20 AM unterhaus_: tried to talk the client into using a precision hollow shaft, no joy
11:46 AM JT-Shop: yea the new hard jaws for the GMT vise are here... all damage has been replaced
11:57 AM perry_j1987: special jaws for special vise for special timezone eh
12:00 PM JT-Shop: specially when you run a 2.5" shell mill into them at rapid speeds
01:40 PM gregcnc: are you setup of coolant on the gun drill? how deep?
02:15 PM Tom_L: JT-Shop, you didn't hurt the spindle did you?
02:15 PM Tom_L: very likely could have tweaked it
02:35 PM miss0r: Goodevening
02:45 PM JT-Shop: I don't think so, it's massive
03:24 PM XXCoder: roycroft: work we often use drill just to start a hole. then use either endmill or reamer or both to finish it.
03:24 PM XXCoder: if we dont, its a bore that we dont really care on size (huge tol)
03:50 PM Deejay: gn8
04:34 PM perry_j1987: so the raspberry pi 4 is working as linuxcnc boxes now eh?
04:35 PM roycroft: that's what twist drills are for, xxcoder
04:35 PM roycroft: they are certainly not for boring accurate holes to size
04:39 PM skunkworks: perry_j1987: seems to expecially with external hardware
04:39 PM perry_j1987: requires one of those mesa cards
04:43 PM skunkworks: doesn't hurt
04:43 PM Tom_L: skunkworks, are you familiar with those newer all in one mesa cards?
04:43 PM Tom_L: i can't recall the pn
04:44 PM Tom_L: like 34 io iirc
04:46 PM unterhaus: Tom_L is it an anything i/o card?
04:47 PM unterhaus: are you talking about the 7C80?
04:47 PM Tom_L: it's not the 5i25 etc
04:48 PM Tom_L: i don't think they were specific for the rpi
04:49 PM Tom_L: i'm a bit fuzzy on the details...
04:50 PM unterhaus: I have seen 2 rpi cards, the 7c80 with i/o and the 7c81 for 25 pin daughter cards
04:51 PM unterhaus: sorry, I misread
04:53 PM Tom_L: i won't say that's not it but i'm not sure
04:54 PM unterhaus: how much all in one did you think it had?
04:55 PM unterhaus: great, I'm wearing my pants inside out
04:56 PM unterhaus: okay, remedied
04:59 PM unterhaus: I like the ethernet cards with i/o
06:13 PM jthornton: got a guy coming to look a the Enco tomorrow...
06:14 PM Tom_L: cool
06:16 PM jthornton: and another guy is standing by in case this one does not buy it
06:16 PM jthornton: from not a peep to two in two days
06:17 PM gregcnc: if typical CL, neither will show
06:18 PM Tom_L: get a bidding war started!
06:21 PM jthornton: I don't do that, I treat them fair and square
06:22 PM CaptHindsight: heh, I've told sellers it an hours drive for me to get there only to pull up in the driveway as someone is handing them money
06:23 PM CaptHindsight: shitty tire kickers and sellers on CL
06:24 PM jthornton: depends on your location...
06:27 PM jthornton: https://gnipsel.com/images/wood-working/router/
06:27 PM jthornton: got the woodpecker put together while making parts today
07:49 PM unterhaus: I have thought about putting a router table in my tablesaw because I have no room in my shop
08:32 PM _unreal_: hello
08:33 PM Elmo40: moo
08:33 PM Elmo40: unterhaus, do what works!
08:33 PM X704 is now known as tiwake
08:33 PM Elmo40: good idea. drop the blade all the way, drill a hole for mounting the router underneath. i like the idea.
08:34 PM Elmo40: can even use the fence to make straight grooves.
08:34 PM _unreal_: I got my metal today, the two parts I need to .. mount the motor .. and link the leadscrew to the X axis
08:34 PM _unreal_: too late to cut anything though :( to much noise
08:35 PM Elmo40: boo
08:35 PM Elmo40: wake the neughbourhood! you gotz a machine to complete!!
08:38 PM perry_j1987: interesting
08:38 PM perry_j1987: just came across hydraulic motors
08:38 PM Elmo40: ok?
08:39 PM perry_j1987: didnt know they existed
08:39 PM Elmo40: um, k?
08:40 PM Elmo40: if i take 1987 as your birth, how could you not know they existed? you've seen them all over the place (mainly construction equipment and certain 3-wheel lift trucks on the back of flat deck trailers)
08:40 PM Elmo40: and skyjacks
08:41 PM Elmo40: a lot of farming equipment
08:41 PM Elmo40: industrial mixers
08:42 PM Elmo40: ok, so they are not in the home... but still everywhere.
08:49 PM roycroft: most people don't know anything about most technology
08:49 PM roycroft: not even that it exists
08:52 PM X704 is now known as tiwake
09:02 PM X704 is now known as tiwake
09:24 PM X704 is now known as tiwake
09:29 PM X704 is now known as tiwake
09:37 PM _unreal_: Elmo40, dont for get fork trucks,
09:37 PM _unreal_: sissor jacks
09:37 PM _unreal_: lock splitters
09:39 PM SpeedEvil: haha
09:40 PM Tom_L: :)
09:48 PM Tom_L: skunkworks, got a link to your thc plasma video?
09:57 PM Elmo40: log splitters have hydraulic motors?
09:57 PM Elmo40: i know they have cylinders
09:59 PM Tom_L: at least a hydraulic pump
09:59 PM Tom_L: not necessarily a motor
10:04 PM skunkworks: Tom_L: https://youtu.be/mOg5C_TusdM
10:04 PM skunkworks: that one
10:04 PM skunkworks: ?
10:05 PM Tom_L: yes thanks
10:05 PM skunkworks: the K&T had hydraulic servos originally
10:11 PM skunkworks: we have a 70's vintage cincinati lathe that still has the hydraulic servos mounted...
10:11 PM skunkworks: doubt if we will keep them...
10:12 PM Tom_L: i remember my bud's bridgeport tracer...
10:13 PM skunkworks: I have never seen a tracer in person
10:13 PM Tom_L: it was rather interesting
10:20 PM pcw_home: mechanical copying? (I once repaired a flame cutter that followed line drawings with an optical sensor)
10:23 PM Tom_L: it was hydraulic
10:24 PM Tom_L: https://www.youtube.com/watch?v=b1qqLiha4t8
10:26 PM Tom_L: that one may be more automated than the one he had
10:26 PM Tom_L: he had to guide the tracer arm
10:36 PM pcw_home: Wow all hydraulic servo system...
10:36 PM Tom_L: yup
10:38 PM X704 is now known as tiwake
10:39 PM Tom_L: he finally got rid of that for a boss5
10:39 PM Tom_L: at least the boss5 had a set feedrate
10:39 PM Tom_L: the tracer required a steady hand
11:08 PM X704 is now known as tiwake