#linuxcnc Logs

Dec 31 2017

#linuxcnc Calendar

12:00 AM Wolf__: … wish my DRO would get here quicker
12:03 AM XXCoder: dang crom
12:06 AM jesseg: Crom, most fascinating! How'd you get into the the theatre scene? do you use your machinist abilities for that?
12:18 AM Crom: Been doing costuming, sets, and props for the last 20 years or so. My folks help out doing the same for a dance company in Northern California and My brother was Production Manager for "Bill Silvas Presents " for 8 years (another 10 or so working for him and other prodcution companies)
12:20 AM Crom: I'm wanting to get into the CNC for props and dummies for costuming. I'm wanting to get a 3D scanner to scan actors for certain costumes/Shoes/Boots/Hats/Helms/Helmets and make dummies from Styrofoam on a big CNC router
12:21 AM XXCoder: heh styrofoam you can easily get cnc machine together to mill those
12:21 AM XXCoder: it just needs to be able to move itself well
12:21 AM Crom: I've already made 2 crowns using CNC out of sheet brass
12:23 AM XXCoder: nice!
12:27 AM XXCoder: I wish I have room to work on cnc router, and will to do so
12:38 AM Crom: My cnc router is going to have to be a slant bed like at 75 degrees to cut down on floor space.
12:38 AM XXCoder: I saw wall mount ones., interesting
12:45 AM jesseg: Crom, super cool
12:45 AM Crom: Think I'm going to get the Maslow to start with
12:47 AM jesseg: Crom, a few years ago I started building a 1.5m x 1.5m x 3" foam CNC unit for making foam signs and also for running a plasma cutter.. wish I'd finished :P
12:48 AM Crom: Maslow CNC with Z is only $410
12:49 AM XXCoder: ah yes that type
12:49 AM XXCoder: yeah pretty cheao
12:50 AM Crom: good enough to cut out a better one
12:50 AM XXCoder: you could use both if producton demend is higher
12:52 AM Crom: well with their recommended router it's like $600ish
01:13 AM Contract_Pilot: Sup Sucess with the dead tormach version of the leadshine 3ND883 stepper driver it works now! Just a few hours doing a teardown decided WTF lets diagnosis it and fix it.
01:16 AM XXCoder: way to go
01:16 AM Contract_Pilot: Had to make due with what i had still have not unpacked my rework equipment fulley
01:47 AM Contract_Pilot: Todays keep myself busy! No Lifting no Straining... No Stress just play!! http://www.stevenrhine.com/?p=2687
01:51 AM MarcelineVQ: neat stuff
02:08 AM Contract_Pilot: Guess i am being forced to winblows 10...
02:09 AM Contract_Pilot: I will give it a go here it is better then 8.1 wich was OEM on this hand me down laptop i go
02:09 AM Contract_Pilot: So far only a little hickup on installing jeppview
02:09 AM Contract_Pilot: bit looks like its workign'
02:10 AM Contract_Pilot: We will see after it downloads the entire wold terrain in high def!
02:10 AM Contract_Pilot: the 770M Should handel it.
02:12 AM Contract_Pilot: No lag it runs fusion 360 like a dream '
02:12 AM Contract_Pilot: 256SSD + 32gb ram and the 770M @ 3gb should eb good
02:16 AM Deejay: moin
02:16 AM XXCoder: Contract_Pilot: it sucks that vbox refuse to allow more video memory than 256 mb
02:16 AM XXCoder: otherwise it'd be easily possible to run fusion 360 in vm.
02:17 AM MarcelineVQ: or if his processor was one release newer :(
02:17 AM MarcelineVQ: but we're in the same boat with 4700's, no I/O passthrough for vm's
02:17 AM XXCoder: I tried to tell people in virtualbox about fusion360
02:18 AM XXCoder: they said 256 mb is all everything needs. shades of 514 bytes heh
02:18 AM XXCoder: *kb
02:18 AM MarcelineVQ: talk like that'll make people try qemu
02:19 AM Contract_Pilot: deejay
02:19 AM Contract_Pilot: xxcoder
02:19 AM MarcelineVQ: not that it'd help with the lack of vm getting gpu privelege, that's up to the cpu model :(
02:19 AM Contract_Pilot: marcelinevq
02:19 AM XXCoder: MarcelineVQ: fusion 360 ran in my vm just fine, just not enough video memory
02:20 AM XXCoder: and no way to increase memory limit to say 512 mb
02:21 AM Wolf__: fusion bitches about the 512mb on my 2011 mac book not being enough lol
02:21 AM XXCoder: geez
02:21 AM XXCoder: I wonder why it needs so much graphics memory
02:21 AM Wolf__: surface rendering
02:22 AM XXCoder: I hope one of you guys can go over and beat virtualbox guys in head in order to increase limit.
02:22 AM Wolf__: runs great on my other 2 computers
02:24 AM XXCoder: "256MB for a 10-year-old-or-more-featurewise, basic, low level, virtual GPU seems more than enough. If your latest game complains about not enough memory, even if you change that to a gazillion GB, it will next complain about the next advanced feature that is missing, being DirectX#.# or OpenGL#.#. The devs try to prevent you from shooting yourself in the foot"
02:24 AM Wolf__: granted both of them have over 1gb of video ram
02:24 AM XXCoder: recent forum debate. well crap I dont care what your preceptions on vm usage, I want to sue it whatever I like
02:24 AM XXCoder: *use
02:26 AM Wolf__: at some points its better to run dual boot vs VM
02:27 AM XXCoder: sure but then I dont want to make big disk just to run one or 2 programs
02:27 AM MarcelineVQ: disk space is pretty cheap these days, even on ssd
02:28 AM XXCoder: yeah and I dont want to shut down linux just to run one program
02:28 AM enleth: XXCoder: try changing it in the VM config file, the limit might be in the GUI only
02:28 AM Wolf__: complaining about disk space, as I sit here with a whole 2nd computer on my desk to run one program lol
02:28 AM MarcelineVQ: enleth: it's not :(
02:28 AM XXCoder: then when done, reboot into linux, oh oops need to do something, reboot
02:28 AM enleth: oh well.
02:28 AM XXCoder: enleth: its limited to 256 mb. hard limit
02:29 AM enleth: well, maybe it's time to reply in the forums that there are valid use cases and they're not "your latest game"
02:29 AM XXCoder: "Parallels has done at least two things to enhance video performance of virtualized Windows 7. First, they have increased video memory to 1024 MB (1 GB). Second, they have enabled 3D acceleration (DirectX10) and vertical synchronization."
02:30 AM XXCoder: parallels is 80 buck a year, cheapest
02:31 AM MarcelineVQ: I wonder if they really mean vitualized or if they mean emulated
02:31 AM MarcelineVQ: *virtualized
02:31 AM Contract_Pilot: wow this screen is so yellow
02:31 AM MarcelineVQ: you can buy a 128g ssd for $80
02:32 AM XXCoder: and still have to reboot
02:32 AM Contract_Pilot: 128's are way less
02:33 AM Contract_Pilot: Ahhh more updates
02:33 AM Contract_Pilot: no morphine for 2 days and feeling it
02:37 AM enleth: XXCoder: ok, the rest of that topic suggests that this value is probably irrelevant anyway
02:37 AM enleth: and it might be other factors that make F360 suck in a VM
02:37 AM XXCoder: yeah though it did work for me
02:37 AM XXCoder: just that workarea sometimes gets blank because not enough vram
03:31 AM gloops: cnc scroll saw is a tough one - probably not feasible
03:33 AM gloops: you would need an overhead Z and something mirroring its position under the work to hold the blade in tension
03:35 AM archivist: forget Z rotating for a minute and rotate the work
03:35 AM gloops: a spiral blade would cut in all directions but the thing that rules it out completely - the blade has to be inserted into drill holes in all the closed pockets
03:36 AM gloops: archivist that would require some coding?
03:37 AM Wolf__: you have been looking at too many routers imo =p
03:38 AM gloops: Wolf a cnc scroll saw would do what a plasma and laser do, interesting idea but i dont think its really doable
03:38 AM Wolf__: moving x/y blade is fixed point
03:39 AM gloops: cant get my head round how that would work
03:39 AM gloops: yeah i know what you mean simply move the table
03:39 AM archivist: moving the work is identical to moving the cutter
03:39 AM gloops: right
03:40 AM Wolf__: just makes it a pain in the ass to have a large travel on the Y
03:40 AM archivist: in a standard manual electric scroll saw you move the work
03:40 AM gloops: if you ut something manually on a scroll saw you rotate the wood in all directions, a cnc wouldnt do that
03:40 AM gloops: you apply pressure to the blade in square with the line youre cutting
03:40 AM archivist: a cnc can move the work in many drections and rotate it
03:43 AM gloops: take a circle, to tell the machine to move the bed in a circular motion
03:43 AM Wolf__: could probably get the blade to turn to the cutting direction if needed (would add some programing that I dont know how to do)
03:43 AM archivist: you are forgetting a rotary can be under the xy
03:44 AM gloops: then the problem of closed pockets - cant get to them
03:45 AM archivist: you have to drill and insert the blade
03:45 AM gloops: then it becomes impractical
03:46 AM Wolf__: depends on the goal
03:46 AM Wolf__: make something cheap to cut out wood then would work
03:46 AM gloops: the goal would be to make a cnc scroll saw lol
03:47 AM gloops: would never be as fast as a laser anyway
03:47 AM Wolf__: if you wanted totally hands off, then water jet or laser
03:47 AM Wolf__: but then you are looking at higher cost machines
03:47 AM gloops: but could cut much thicker wood than small lasers, and no burning or safety issues
03:48 AM Wolf__: 100w laser will do 3/4” ply
03:48 AM archivist: the blades snap, milling can be more reliable
03:48 AM Wolf__: but the damn tube + psu is almost $4k
03:49 AM Wolf__: I still want a c02 laser
03:49 AM gloops: if it were to work it would be more like a jigsaw i suppose, with a very strong thin spiral blade
03:49 AM gloops: Wolf theyre all raving over fibre lasers
03:49 AM Wolf__: yeah
03:49 AM archivist: crossing out clock gears is the same problem, traditional use a jigsaw
03:50 AM Wolf__: I dont have $80k+ to spend on a laser
03:50 AM archivist: but I did cnc crossing with a small endmill http://www.collection.archivist.info/searchv13.php?searchstr=crossing
03:50 AM gloops: crossing out - is that pocket the middle out archivist?
03:50 AM Wolf__: what about a wire w/ grit on it, and two spooling units like a wire edm
03:51 AM gloops: like a bandsaw Wolf?
03:51 AM Wolf__: sort of, but not a band
03:55 AM gloops: yeah an abrasive or cutting wire
03:56 AM gloops: indexing the rotary archivist?
03:56 AM archivist: in that case yes
03:57 AM archivist: sometimes I cut using the rotary
03:57 AM Wolf__: dro and new air cylinder for power drawbar will be here next week. yay
03:58 AM Wolf__: now I need to design something to work with the jet spindle =/
03:58 AM gloops: everything takes twice as long as estimated with this
03:58 AM Wolf__: lol
03:59 AM Wolf__: yeah, I want to still be able to use the quill on the mill so, design in going to be a bitch
03:59 AM Wolf__: s/in/is
04:03 AM archivist: here the rotary is under the XY http://www.archivist.info/cnc/works/P1010207.JPG
04:04 AM gloops: i had the frame im working on set dead level, had to move it to drill something because could get drill in, now got to level it all back up to drill 4 holes that must be right
04:04 AM gloops: more time levelling than drilling
04:04 AM archivist: that manual mill made http://gears.archivist.info/gears/P1010013_335.JPG
04:06 AM gloops: that mill has a lot of potential job movement archivist
04:07 AM gloops: and very nice finish on that gear
04:07 AM archivist: there is another slide under the rotary
04:08 AM archivist: http://www.lathes.co.uk/boley%20miller/
04:08 AM Wolf__: 4 axis set up? lol
04:10 AM archivist: some aspects of the machine are horrible like setting Z
04:10 AM gloops: indexing on the turntable, thats made for gear cutting
04:10 AM archivist: not gear cutting but watch plates etc
04:13 AM archivist: we made our indexing plate on it
04:13 AM archivist: only machine which had good enough division (worm/wheel)
04:44 AM jthornton: morning
04:52 AM XXCoder: hey the jt man
04:52 AM XXCoder: hows chickens
04:53 AM gloops: https://www.ebay.co.uk/itm/Lathe-long-bed-metal-turning-vintage-antique-heavy-cast-lump/302584140931?
04:53 AM gloops: thats been on before i think
04:53 AM jthornton: still getting small eggs, got a soft shell one yesterday
04:55 AM XXCoder: gloops: isnt that value way more as scrap metal than 100 pounds
04:55 AM XXCoder: jt interesting. I guess it will be a bit before they get more regular eggs.
04:56 AM jthornton: I think I got two soft ones and one was busted at least that is how I read the mess in the coop
04:57 AM gloops: pretty heavy yeah XXCoder, maybe 3rd of a ton, about £30 scrap
04:58 AM XXCoder: maybe guys hoping to poffload it more than scrap value
04:58 AM XXCoder: I wonder if anyone would. or maybe get it for parts
04:58 AM jthornton: 13°F
04:59 AM Wolf__: could probably part out the legs and all the gears for more then 100
04:59 AM gloops: curious thread cutting arrangement, its surprising that lathe will cut very well i suspect, ok for aomeone who just wants a lathe around for the odd little job, nobody wants for serious turning though of course
05:01 AM Wolf__: I wonder if I should set up my tool post grinder as a cutter grinder when its not being used on the tool post lol
05:02 AM gloops: i read an item about old brittania lathes, 1900 time, hand scraped beds - even measured today they were very accurate even by modern standards
05:02 AM XXCoder: im sure it took a LOT of work to make machine accurate back then
05:02 AM XXCoder: but still possible
05:02 AM gloops: labour was cheap
05:02 AM XXCoder: true, that
05:03 AM XXCoder: in one author "universe" science fiction, labor price was insane at eartgh
05:03 AM XXCoder: because normally everything gets done by machines and robots
05:03 AM gloops: its got to come
05:04 AM gloops: Wolf what config for the grinder - mount on something with a moving bed?
05:05 AM XXCoder: random thought, is there such thing as lathe grinder
05:05 AM gloops: i put one over my lathe, just a quick bodge job - it works
05:05 AM miss0r: gloops. http://picpaste.com/IMG_20171231_120028-rk090xyn.jpg it is beginning to look like it is going to be a good fix
05:05 AM Wolf__: pretty much. one moving axis, put the grinder on a post
05:05 AM Wolf__: I have a very nice tool post grinder
05:05 AM XXCoder: nicely blurry
05:05 AM gloops: very nice job miss0r, you should be working on antiques
05:06 AM miss0r: XXCoder: if you are referring to my picture; its a little trick I know, for making flaws seem less obvious
05:06 AM XXCoder: fancy
05:06 AM gloops: XXCoder like a bar grinder?
05:06 AM XXCoder: Wolf__: interesting. I wonder if thats how they make gauge rods
05:06 AM miss0r: gloops: antique machinery. I did not enjoy myself doing this
05:06 AM XXCoder: im almost tempted to buy my own gauge rods. sometimes its annoying hard to get certain sizes.
05:07 AM gloops: all kinds of grinding attachments for laths, tool post mounted, cutting, slitting, polisging etc
05:07 AM Wolf__: probably made on center less grinder
05:07 AM XXCoder: no idea what cenetrless grinder means
05:07 AM miss0r: A short video of my tool post grinder, should you need some inspiration: https://drive.google.com/open?id=0B51cA8Udo5i7d2R3dEdCd1pWbWs
05:08 AM Wolf__: I have a themac J35
05:08 AM miss0r: on how 'not' to di it ;)
05:08 AM Wolf__: like new sitting in a box
05:08 AM XXCoder: lol wondered why it wasnt showing
05:08 AM miss0r: nice!
05:08 AM XXCoder: duh dark mode was on
05:08 AM miss0r: I had to build this from scratch
05:08 AM gloops: bar grinding - https://engineerharry.files.wordpress.com/2012/04/grinder6.png
05:08 AM miss0r: mostly because i'm cheap
05:08 AM XXCoder: its apparently background picture, dark mode sets it to just black
05:09 AM XXCoder: also, interesting
05:09 AM miss0r: gloops: that is also called a centerless grinder
05:09 AM Wolf__: that looks like a really good setup for a scratch built
05:09 AM gloops: yes thats it, very common process round here at one time
05:10 AM gloops: i watched a little tool post attachment before xmas, went for a pretty daft price for what it was
05:10 AM miss0r: Wolf__: before it got all nasty. http://picpaste.com/20160802_160229-xjvipkcB.jpg
05:10 AM Wolf__: I have $450 in to mine
05:11 AM miss0r: damn. I had all the stuff laying around... I payed $100 for the bearings
05:11 AM Wolf__: https://i.imgur.com/WzFfTBL.jpg
05:11 AM miss0r: you don't cheap out on the bearings, for this application
05:11 AM Wolf__: crazy thing is worth more then my lathe probably
05:11 AM miss0r: Damn that looks sweet
05:13 AM XXCoder: I loved that video where guy makes air bearing
05:13 AM XXCoder: amazing to see it move in and out purely by energy caused by trying to pull it out
05:14 AM miss0r: the guy with his homemade lathe, with the heavy accenet`?
05:14 AM XXCoder: one that made his own custom calipers
05:14 AM XXCoder: THAT series was insane.
05:15 AM archivist: £10 scrap yard find http://www.collection.archivist.info/searchv13.php?searchstr=toolpost
05:15 AM Wolf__: oops, mine is a J7
05:15 AM Wolf__: not a 35...
05:15 AM Wolf__: beast https://i.imgur.com/zRGNFu6.jpg?1
05:16 AM Wolf__: looks like a well spent 10
05:17 AM archivist: except for the lack of wheels available to fit
05:18 AM Wolf__: hmm crap, I never thought about the wheels for it...
05:19 AM XXCoder: have lathe, can make em?
05:19 AM Wolf__: well, mine has arbors
05:19 AM gloops: make bosses for different bores, with a cup fitting for securing
05:21 AM miss0r: Look what I dug out of a yard sale on the way home today: http://picpaste.com/20160821_102331-h7ztZWSw.jpg I payed ~$5 for it
05:21 AM XXCoder: geez!
05:22 AM miss0r: unfortunatly the set is not complete. but it has 'some parts'
05:22 AM XXCoder: bore size check is expensive
05:22 AM Wolf__: nice score
05:22 AM miss0r: yeah. But I have no calibration rings for it
05:22 AM miss0r: Thoes are also damn expensive
05:22 AM XXCoder: it is, expecially if you need custom size ow
05:23 AM XXCoder: like say .2725
05:23 AM miss0r: well. With this thing I'd just need 3 sizes I think, to ajust the dail for each probe
05:23 AM XXCoder: miss0r: you dont need rings though
05:23 AM miss0r: XXCoder: How so?
05:23 AM XXCoder: all you need is block gauges and special ends
05:23 AM XXCoder: and thingy that clamps on those
05:24 AM XXCoder: so it sets pretty precise size
05:24 AM XXCoder: unfortunately I dont know what it is called so I cant look for it.
05:25 AM miss0r: :-/ And I have no idea what you are talking about :]
05:25 AM XXCoder: trying to find it. not easy without magic voodoo words
05:25 AM miss0r: I'm not even sure i'll get to use this alot. I usualy use thoes telestopic T's, and a micrometer
05:25 AM XXCoder: http://tooldompictures.com/FOW-73-646-000.jpg
05:25 AM miss0r: ahhh indeed
05:26 AM miss0r: that is a way to do it. I guess I could just do the same with a micrometer
05:26 AM XXCoder: I used search words "bore gauge size setter gauge block clamp"
05:26 AM XXCoder: that is also workable though much harder to do
05:26 AM miss0r: hehe. As it turns out, thoes were the magic woodoo words
05:26 AM Wolf__: gauge blocks and a c-clamp lol
05:26 AM XXCoder: you have to make sure you are at lowest point on both axis!
05:26 AM XXCoder: easier with that
05:26 AM miss0r: True
05:27 AM miss0r: At the moment I'm in the chair repair buisness. After i'm done with that, I'll have a look at the score
05:27 AM XXCoder: ring its easier, only one axis to worry. that thing its also both but easier one direction
05:27 AM miss0r: true, but thoes cost money :)
05:27 AM Wolf__: finally a use for ledged surface plates
05:27 AM miss0r: & i'm cheap
05:28 AM XXCoder: damn! wish I knew that, I had old 1950s office chair, I would love it to be welded for heavy person strength and some other repaurs
05:28 AM XXCoder: I already threw away that chair
05:28 AM XXCoder: shipping wouldnt be worth it though lol
05:29 AM miss0r: lol
05:29 AM archivist: you can probably make good money fixing chairs where some large bugger has broken it :)
05:29 AM XXCoder: "Bore Gage Setting Master Kit" is better words
05:29 AM miss0r: I'm only in the chair repair buisness with this one chair. My grandpas I broke yesterday
05:29 AM XXCoder: archivist: yep im 300 pounds. probably 150 pounds more than 1950s people expected.
05:29 AM Wolf__: lol
05:30 AM miss0r: XXCoder: I'm 250 ish... I thought I was one of the heavier persons in here
05:30 AM XXCoder: https://www.ebay.com/itm/Fowler-Bore-Gage-Setting-Master-Kit/352224930197?hash=item52023de995:g:bd0AAOSwCMFaIscs
05:30 AM archivist: I used the southbend for chair repair http://www.collection.archivist.info/archive/DJCPD/PD/2014/2014_04_17_Southbend_lathe/IMG_1796.JPG
05:30 AM XXCoder: not too bad really 250 bucks. includes gauges and certification I think
05:31 AM miss0r: True. but I'm not about to spend money on something that could be broken for all I knpw
05:31 AM miss0r: know*
05:31 AM XXCoder: true, though you could use micropmeter or caliper till you confirm that its working and repeatable.
05:32 AM Wolf__: what the heck is going on in that pic archivist lol
05:32 AM miss0r: archivist: the fix here was one a odly shaped plywood leg.
05:32 AM XXCoder: ok fine I will; click that link
05:33 AM miss0r: no ... don't !
05:33 AM miss0r: :] if more than one clicks his links at a time, you will drop him off the internet :P
05:33 AM archivist: Wolf__, cutting the old feet off the chair spider
05:33 AM miss0r: whats wrong with an angle grinder?
05:33 AM XXCoder: Oh ̨̘̱M̥̪̗̞ͅY̼̥̺̳̞̜͘ ̧͍͙̰̣͚̹E͜Y͘ͅES̷̱͓!̡̠͍̯̯̩̘̙!̘̺̫̱͜!
05:33 AM Wolf__: does remind me that I need to get a slitting saw arbor (actually I think its a gear hob…)
05:34 AM XXCoder: E̷ͦ̑̏ͤ̐̔̓͗̔̒҉̖͈̹̭̺͖̥̠͖̟̞̰͇͔̠̟ͅͅŸ͑͂͛ͩ̃͛͗̇҉̧̠͇̻̘̺̫͔̤̭̺͔̙̬͢͞E̢̠̘̦͎͔͉̥͎̥ͯͧ͛͂ͣͤͭ̅͛͊̽͛̕S̷̷̴̬͕̮͙̠͓̳̜̪̼̯̤ͭ͑̓̏ͧ̋̾̆̔̂́!̧̏͑ͥͮ͞҉̗̩̺̦̜̳̜̳͈͍̜̲̫͉̜̳̮̠̲
05:34 AM archivist: the spider would not fit on the horizontal mill so it was lathe abuse
05:34 AM * miss0r slaps xxcoder with a ascii manual
05:34 AM Wolf__: ^ that, seems like over kill lol
05:34 AM XXCoder: miss0r: unicode ;)
05:34 AM miss0r: wtf is that?!
05:34 AM XXCoder: better charactor set
05:35 AM miss0r: On my screen your characters managed to creep down over both archivists and my own post
05:35 AM XXCoder: lol
05:36 AM Wolf__: 4 days till DROs arrive
05:37 AM miss0r: Wolf__: your life will improve expenentialy!
05:37 AM Wolf__: I have a feeling I’ll be cussing a lot for the first couple lol
05:37 AM XXCoder: miss0r: clients set to ascii handles unicode very strangely
05:37 AM miss0r: hehe. Yeah. Installing it isn't always as straight forward
05:38 AM miss0r: Indeed
05:38 AM miss0r: So anyone else planning to get their fingers blown off tonight?
05:38 AM XXCoder: this probably is a bell  belly
05:39 AM Wolf__: not here
05:39 AM Wolf__: probably more time sitting at the machines making chips =)
05:40 AM XXCoder: I dont plan to blow off my fingers anytimes soon as I use it to talk, and do stuff with.
05:40 AM miss0r: I wouldn't mind doing that. But I have to attend in some social activities once in a while(acording to my wife)
05:40 AM Wolf__: not a single axis on my mill seems to be straight forward for DRO install lol https://i.imgur.com/0r177E3.jpg
05:40 AM Wolf__: well, x axis is simple
05:41 AM Wolf__: the Y and the knee-Z not so much
05:41 AM miss0r: It seems pretty straight forward.
05:41 AM Wolf__: I need to put the Y on the Z crank size
05:41 AM miss0r: Try installing it on an old lathe, with all cast surfaces with rounded shapes
05:41 AM Wolf__: side*
05:42 AM miss0r: Always keep in mind: ingres of chips/coolant & mechanical damage
05:42 AM Wolf__: https://i.imgur.com/bpO2P3K.jpg https://i.imgur.com/LxiIeKA.jpg
05:42 AM miss0r: i.e. you don't want anything where you could hit it with a workpeice you mishandle
05:43 AM Wolf__: power feed on this thing is a huge gearbox
05:43 AM XXCoder: my shop pictures: <url picture not found>
05:43 AM miss0r: XXCoder: You could make some. I always love to see other peoples shops
05:43 AM Wolf__: I’m stuck with mounting the X on the backside of the table also =/
05:43 AM XXCoder: unfortunately you cant make pictures of what does not exist :)
05:44 AM miss0r: Wolf__: Which is the ideal place
05:44 AM miss0r: "on your mill, in my opinion"(c)
05:44 AM Wolf__: Y axis is going below the Z axis hand crank
05:45 AM miss0r: That seems like a good place to put it, sort'a out of the way
05:45 AM Wolf__: will have to make a bracket to reach down to move the read head
05:45 AM Wolf__: right side of the machine has like 10mm gap between the Z and the gear box
05:46 AM miss0r: yeah, thats not alot. but sure - unless you get lucky'n fit the kit for your exact machine, you'll have to be creative
05:46 AM miss0r: fit=find
05:46 AM Wolf__: its a aliexpress kit lol
05:46 AM miss0r: indeed - creativity is a must then ;)
05:47 AM miss0r: To avoid too much jitter, make sure you make that bracket extremely stiff
05:47 AM XXCoder: heh aliexpress stuff always needs creativity
05:48 AM Wolf__: https://www.aliexpress.com/item/32789719488.html hopefully link works, looks like the scales come with backers
05:48 AM Wolf__: but knowing how some of the sellers are...
05:48 AM XXCoder: 404
05:48 AM Wolf__: I’ll know when I have it here
05:49 AM miss0r: you probally bought a framed picture of the DRO - Frame not included
05:49 AM Wolf__: https://www.aliexpress.com/item/New-Easson-ES-12B-3-axis-digital-readout-mill-lathe-3-axis-DRO-system-and-3/32789719488.html?spm=a2g0s.9042311.0.0.ASys2y
05:50 AM XXCoder: thats quite nice
05:50 AM miss0r: that actualy looks nice
05:50 AM XXCoder: bit pricy
05:50 AM Wolf__: price went up since I ordered
05:50 AM miss0r: I love the LCD. i've only ever bought 7-seg display ones
05:50 AM Wolf__: I got that and a super cheapy for the lathe
05:51 AM Wolf__: was $470 when I hit buy
05:51 AM Wolf__: https://www.aliexpress.com/item/free-shipping-complete-set-milling-lathe-drill-machine-dro-digital-readout-with-3-pcs-linear-scales/1524501216.html?spm=a2g0s.9042311.0.0.ASys2y was $235
05:52 AM jthornton: dang that is a huge adapter hanging out the back of the screen
05:52 AM Wolf__: yeah I dunno whats up with that in the pic
05:52 AM XXCoder: galvanometer I just checked em out, still very expensive drat
05:53 AM XXCoder: I would love to play around with laser and galvanometer
05:55 AM XXCoder: https://www.ebay.com/itm/30Kpps-laser-Galvo-Galvanometer-Based-Optical-Scanner-including-Show-Card/252300684989?epid=1956443717 interesting
05:56 AM miss0r: what does it do?
05:56 AM miss0r: ohh... scenery
05:56 AM XXCoder: its motors with mirrors on it. yeah
05:56 AM XXCoder: very very fast
05:57 AM XXCoder: I'm wondering if I could make fake vector montior with it
05:57 AM miss0r: I've only ever bought prebuild units, for back when I had a mobile disco
05:57 AM TurBoss: Hello XXCoder
05:57 AM XXCoder: im thinking maybe glow in dark sheet on glass as "tube"
05:58 AM XXCoder: hey TurBoss been a bit
05:58 AM Wolf__: I onlu have one laser and it just burns stuff
05:58 AM TurBoss: there are a galvokins
05:58 AM miss0r: Back to family buisness. See you guys around. happy newyear
05:58 AM XXCoder: later miss0r and happy new year
05:59 AM jthornton: 2.2GB of data to use today lol
06:01 AM XXCoder: heh too bad I dont have enough skills to buy buying that $95 galvnometers
06:02 AM XXCoder: I'd want to try make a fake vector montior, with enough POV and accept same input as vector montior
07:16 AM jthornton: gotta make new doors for the coop that open up like kitchen cabinets and paint them in the shop as it's way too cold outside to paint
07:22 AM Loetmichel: jthornton: i always wanted to make a paint booth for the company... so far: not enough time... simple thing though. A used shower-bowl on some wheels, a few plastic boards that make a booth out of that, a big fountain pump underneath it, a bit of copper tubing with holes in the wall every few cm, a flourescent/led light at the top. And voila: mobile paint booth with waterfall walls that takes
07:22 AM Loetmichel: away 90% of the overspray and stink.
07:23 AM jthornton: ah this is barn/fence paint with a throw away brush
07:38 AM Tom_L: 7F
08:06 AM gloops: watch it with that 2k paint, it will kill you
08:23 AM jthornton: 2k?
08:25 AM gloops: or 2 pack jthornton, - if spraying, its commonly used in auto industry, a lot of diyers go to the auto paint shop and buy it and spray it in the garage without knowing the health risk
08:25 AM gloops: was looking at Loetmichels comment about making a mobile spray booth
08:26 AM jthornton: ah ok
08:27 AM gloops: Spraying 2-pack isocyanate paints is the main cause of occupational asthma in the UK and, for years, vehicle paint sprayers have been the group most at risk. MVR paint sprayers have about a 90 times higher risk of getting asthma compared with the UK working population.
08:27 AM jthornton: yea when I spray it's outside with a mask
08:27 AM gloops: you only have to spray 1 car without proper mask and ventilation, can be enough to do your lungs
08:54 AM jthornton: I'm following the instructions to install uspace on Debian 7 but when I get to step 4 I get unable locate package linux-image-rt-amd64
08:54 AM jthornton: http://linuxcnc.org/docs/2.7/html/getting-started/getting-linuxcnc.html#_installing_on_debian_wheezy_with_preempt_rt_kernel
08:55 AM skunkworks: jthornton, https://www.youtube.com/watch?v=mOg5C_TusdM
09:05 AM skunkworks: jthornton, seems like the kernal got removed iirc
09:10 AM skunkworks: jthornton, you can build a rt_preempt kernel pretty easy..
09:10 AM skunkworks: https://sourceforge.net/p/emc/mailman/message/35165705/
09:33 AM rene-dev: jthornton or, just update to stretch.
09:35 AM Deejay__ is now known as Deejay
09:37 AM lunadabay_ is now known as lunadabay
10:03 AM Tom_itx is now known as Tom_L
10:04 AM Tom_L: JT-Shop if you get a chance, look at the log around 5:33 and see if there's something odd there
10:07 AM archivist: that did not display on my client
10:07 AM Tom_L: ff does
10:07 AM archivist: there is utf8 and unicode, not the same :)
10:08 AM Tom_L: right around "Oh MY'EYES!!!"
10:08 AM Tom_L: something odd there
10:31 AM jthornton: skunksleep: I need to try that if I can figure it out lol
11:01 AM Wolfmetalfab is now known as Wolf__
11:04 AM Deejay__ is now known as Deejay
11:23 AM kwarup: Hello All.. today I've installed linuxcnc on LinuxMint 18.04 64bits only for jocking .. and for my surprise .. the latency was better than my old linuxcnc wheezy install..
11:25 AM kwarup: Also I'm playing with Hal2Arduino.. also for my surprise .. It's working ( well at least only the board ) trying to figure out where the pins are.
11:25 AM kwarup: kwarup = Durval Henke
11:34 AM L29Ah: can freecad generate paths for imported stl?
11:35 AM L29Ah: it has openscad mode but it seems broken
11:40 AM L29Ah: oh, i needed to "create shape from mesh"
11:42 AM gloops: blender has a CAM plugin, not tried it though - blender is an awesome mesh app
11:45 AM gloops: i am going to learn this soon, it looks pretty good, only 1 man working on it though https://www.youtube.com/watch?v=MaufwjatuXw
11:48 AM skunkworks: the actual kernel locations have changed online
12:42 PM gloops: well, my next cnc project will be a lathe of sorts
12:43 PM gloops: a robust tank of a machine weighing 500kg
12:45 PM gloops: 4 axis
12:47 PM gloops: for things like table legs, it must be able to work on the round, but also carve on the flats
12:56 PM jesseg: gloops, I can imagine that your first 3 axes will be X, Y, and rotation of the tool post, but what will be the fourth? height of the toolpost?
12:59 PM * Loetmichel just destroyed a folding plastic box. emptied the letterbox, threw the ads on the pile on the shoe cabinet in the hallway. result: a loud rumbmle and i was up to the knees in paper for recycling. Had to sort the pile and then carry it out 5 times in said box... last trip the bottom of the box fell out. :-) MAN do i hate that "paper spam".
12:59 PM gloops: jesseg yes - height of tool, is the best way i can think to do it
01:00 PM gloops: oh no, tool post wont rotate,
01:00 PM gloops: im counting the rotation of the spindle as an axis
01:00 PM gloops: the lathe spindle, the work
01:01 PM jesseg: gloops, oh gotcha! so will the spindle be a servo axis then, so you can actually clamp a dremmel in the toolpost and do milling
01:03 PM gloops: jesseg yes the tool will be a spinning cutter, the chuck will be servo driven - to control for things like spirals and barleytwists on the round, and to locate the flat areas for carving
01:03 PM jesseg: I dream about doing CNC on the toolpost rotation as well so I can via CNC put the tool inside or outside a bowl, for example, or use it like an indexer to have different tools mounted that can be rotated in whether it's a drill/boring or a lathe bit
01:04 PM jesseg: gloops, oh gotcha, hence the need to CNC toolpost height -- because in fact it'll be a 3 axis mill too, using the lathe chuck as a rotary table - splendid!
01:04 PM gloops: rotating a tool holder should be easy enough, its clamping the tool that might be awkward
01:05 PM gloops: yes it is more of a 3 axis mill with a rotary axis really, but ill do it in a lathe kind of layout
01:05 PM jesseg: yeah exactly, great idea
01:07 PM gloops: some way off heh, i have got 2 ballscrews some sbr rails and enough steel already though, i better finish what im making first
01:07 PM jesseg: lol
01:08 PM gloops: the problem with rotating the toolpost for cutting - the g code
01:10 PM jesseg: oh yeah I forgot I take a different approach than sane folks do :P
01:10 PM jesseg: but you could just treat it as a tool changer
01:10 PM jesseg: a lathe bit could be tool #1 at 0 degrees and tool#2 at 90 degrees, with different offsets of course
01:11 PM jesseg: but it would allow your program to still do different surfaces
01:11 PM gloops: oh yeah i forgot it is a lathe not a mill
01:11 PM JT-Shop: Tom_L: that was XXCoder playing with fonts
01:11 PM JT-Shop: skunkworks: do you know the new location for the kernel?
01:14 PM jesseg: gloops, how are you going to servo drive your chuck? 3 phase motor and VFD with optical encoder?
01:15 PM gloops: not sure yet jesseg, im thinking of something with built in encoder, even a stepper with encoder
01:16 PM jesseg: gloops, oh, so a low speed servo-type actuator for CNC movements, then a different regular induction motor for high speed plain lathe type operations
01:16 PM jesseg: that should work fine
01:17 PM gloops: well a regular nema 34 type servo goes to 3000 rpm - easily enough, with a router spindle cutting the rotation becomes the feed rate - it wont need to go anywhere near 3000
01:18 PM jesseg: but you won't be direct driving your spindle with a stepper I presume, perhaps a 10:1 reduction at least?
01:18 PM gloops: thats something i havent looked at closely, whats the reason for that reduction?
01:19 PM gloops: (have seen that most use a reduction gearbox or pulleys)
01:19 PM jesseg: torque and resolution limitations of the stepper
01:20 PM jesseg: the stepper doesn't have a "lot" of torque compared to the forces of a cutting tool on a workpiece
01:20 PM gloops: yes, that is doable, i dont think the torque requirements will be drastic with wood being cut by a router, but some reduction yes
01:22 PM jesseg: you'd be surprised how easy it is to make a stepper lose step with a few inches of leverage
01:22 PM gloops: difficult to achieve 10-1 with 2 pulleys though, so a gearbox with 0 backlash
01:22 PM gloops: or 4 pulleys
01:23 PM gloops: if your small pulley is 25t the big one would need to be 250t - pretty big
01:24 PM ktchk: why stepper as spindle? vfd 400hz 3 phase motor is good
01:24 PM gloops: how much do they cost?
01:25 PM ktchk: chinese made is cheap
01:25 PM ktchk: I pay hk2000 app us 300
01:25 PM gloops: ill look at that as well then, but also needs encoder?
01:26 PM ktchk: encoder for threading?
01:27 PM gloops: yes things like threading
01:28 PM jesseg: gloops, and you might actually be able to discipline the VFD with an actual absolute position PID feedback sensor to actually run it as a servo -- at any speed
01:28 PM gloops: also need to be able to stop at any angle and hold
01:29 PM ktchk: stepper only stop at 1.8 deg or max 0.9 deg
01:31 PM gloops: like this https://www.youtube.com/watch?v=18vEaSjY9Pc
01:31 PM gloops: ktchk - microstepping?
01:32 PM ktchk: micro stepping do not allow the motor stop between 1.8
01:33 PM gloops: https://www.ebay.co.uk/itm/2ph-86mm-NEMA34-12N-6A-1000line-Encoder-closed-loop-Stepper-Motor-Drive-Kit-JMC/112374848775?
01:33 PM gloops: i wasnt aware of that ktchk
01:34 PM gloops: gearboxes to fit are around £50
01:37 PM ktchk: The stepper with 1000 line encoder can not stop at 800th of a turn of the motor
01:37 PM ktchk: best is change to a 800line encoder
01:38 PM gloops: why 800? why not 1000?
01:38 PM ktchk: the motor is moving 0.9 deg and is 800 step per turn
01:40 PM gloops: thats 400
01:40 PM ktchk: half step is possible
01:41 PM gloops: ok this is interesting
01:42 PM gloops: ok, so the stepper and the encoder are basically working in different scales?
01:43 PM ktchk: with a screw of 5mm per ture I can order the stepper to advance 0.125mm half step
01:43 PM gloops: wont the software synchronise that?
01:44 PM kwarup: I'm having a good class.. watching and learning.. ktchk
01:45 PM ktchk: linuxcnc lathe threading can read the spindle encoder but not too high
01:45 PM gloops: and do these stepper hybrids work on step/dir
01:45 PM ktchk: yes
01:46 PM ktchk: tmc262 with outside mosfet goes to 6A
01:46 PM gloops: well the motor will still go to the angle, the encoder is simply measuring in a different scale
01:48 PM ktchk: the encode can command the motor to move back and forward but the motor only lock at 0.9 deg not in between
01:48 PM gloops: ok
01:49 PM gloops: work diameter 150mm, whats 0.9 degrees on the surface?
01:50 PM ktchk: 150/800 mm
01:50 PM gloops: 471 circumference
01:50 PM ktchk: sorry 471/800 mm
01:51 PM gloops: not much more than 1mm
01:51 PM gloops: thats fine
01:52 PM ktchk: gear box halps
01:53 PM gloops: yes reduction will increase that dramatically
01:53 PM gloops: 25-1
01:53 PM gloops: so, we would be ok with a stepper
01:54 PM ktchk: get a good stepper control board with tmc262 ic
01:55 PM jesseg: oh that's a good point (I may not be following, but...) you do want quite high resolution, or when you position the spindle at a given angle you want a given face on the workpiece to be *exactly* parallel to the XYZ plane or the pattern you mill into that face will be deeper on one side
01:56 PM gloops: yes that is a good point jesseg
01:57 PM gloops: if you are working on square faces, they would need to be repeatedly held at 90 pretty bang on
02:00 PM jesseg: gloops, true, but you might be working on 3 sides, or 5 sides, or 6 side, or 7 sides
02:00 PM jesseg: so it's good to just have high resolution
02:00 PM gloops: well i understand it a bit better now anyway
02:02 PM ktchk: a zero backlash harmonic gear of 50 or 100 to 1 is good
02:03 PM jesseg: yeah if you can get a harmonic gear drive that would be very worth investigating.
02:03 PM jesseg: I picked up a couple I hope to use for a 2-axis rotary table
02:04 PM jesseg: they make them to be the joint on an industrial robot arm so they are made to support hundreds of pounds several feet out
02:04 PM gloops: http://www.ebay.co.uk/itm/Nema23-Stepper-Motor-L76mm-Worm-Gearbox-7-5-1-10-1-15-1-20-1-30-1-Reducer-Kit/201606239526?
02:04 PM ktchk: I had one from used japan robot for 200us
02:04 PM jesseg: and to be very accurate while doing it
02:04 PM gloops: what about these cheapo worm drives
02:05 PM ktchk: with a bit backlash
02:06 PM gloops: for wood we are not talking about .005mm not fitting bearings or threads, its just appearance mainly
02:06 PM _methods is now known as methods_
02:07 PM ktchk: for wood normal star gear will be good
02:07 PM gloops: or timing pulleys
02:07 PM ktchk: yes
02:09 PM ktchk: bye
02:24 PM kwarup is now known as durvalhenke
03:27 PM gloops: neighbours got a new karaoke machine by the sound of it...great
04:06 PM Deejay: gn8
04:09 PM Tom_shop: JT-Shop, what size din mount breakers do you still have?
06:46 PM XXCoder: JT-Shop: not font but unicode