#linuxcnc Logs

Jun 28 2021

#linuxcnc Calendar

01:52 AM Deejay: moin
04:05 AM Tom_L: morning
05:13 AM JT-Cave: morning
05:13 AM XXCoder: heys
09:32 AM Loetmichel: **PFUAH** i hate this shop floor. 34.5°C, 68%rH today. i'm meeelting.... and still 3/4 hour to go :frowning:
09:34 AM JT-Shop: wouldn't a bit of melting be good for you?
09:37 AM JT-Shop: 72°F 45% rh in my shop
09:38 AM roycroft: the forecast says 35 today, but the radio keeps saying 42 today
09:44 AM JT-Shop: once the moisture of my wood is ~10% and it's inside at 50% rh do I still need to stack it on stickers?
09:46 AM _methods: isn't it alway best to stick it?
09:47 AM _methods: we always kept the wood in the shops i worked in sticked up
09:47 AM _methods: unless we knew we were going to use it immediately or something
09:48 AM JT-Shop: dunno that's why I'm asking I'm NewNotKnowHow
09:49 AM * drdoc needs help with Mesa board I/O setup
09:50 AM drdoc: I have Isolated Input 0-3 set to GPIO In for limit switches
09:51 AM drdoc: And I want to trigger a 3V optocoupler to turn on the main PSU
09:52 AM drdoc: So should I use an Isolated Output pin as SSR output?
09:53 AM drdoc: or use one of the expansion pins?
09:55 AM _methods: well if you're planning on keeping it for any length of time i'd stick it up
09:55 AM Loetmichel: roycroft: not forecast. measured. Right at my desk.
09:56 AM Loetmichel: and not an inkling of air moving in here
09:56 AM JT-Shop: ok
09:57 AM * JT-Shop has become very experienced at making uniform stickers
09:58 AM _methods: sticking it up keeps the wood pile more stable too in my experience
09:59 AM _methods: much easier to pick up and move around than an unsticked pile
09:59 AM _methods: unstuck?
09:59 AM _methods: lol
10:01 AM Loetmichel: ahhhh... just a trip to the storage room... 12V PC fan 120mm and Lab psu... MUUUUCH better :) ... why didnt i think of that this morning?
10:06 AM roycroft: loetmichel: we got up to 43 yesterday
10:06 AM roycroft: so quit your whining :P
10:12 AM drdoc: roycroft: the fact that y'all are being parboiled doesn't make the rest of us any more comfy...
10:13 AM * drdoc was planning a late shift in the garage last night
10:13 AM drdoc: It's sort of surprising how fast a dead rat starts stinking in this weather
10:13 AM Roguish: nice here today.... mid '80's that's 29ish .............
10:14 AM Roguish: for the non-Fahrenheit crowd
10:15 AM drdoc: I can deal with the heat if I'm careful, and I can deal with that smell if I have to
10:15 AM drdoc: but the heat AND that smell were enough to make me wait
10:21 AM * JT-Shop doesn't do well in the heat anymore
10:36 AM drdoc: me neither
10:37 AM drdoc: I manage if I wear a hat, and the humidity is low
10:37 AM drdoc: meaning I really need to move
10:58 AM roycroft: if you wear a hat does that make the smell easier to tolerate?
01:21 PM JT-Shop is now known as jthornton
01:25 PM jthornton is now known as JT-Shop
01:27 PM Sherin: There is war between Libera/Freenode. Don't suffer come to irc freenode chat <== new network for only chat.
01:27 PM Sherin: Come fast register your channel, first come, first serve basis. .
01:30 PM JT-Shop is now known as jthornton
01:33 PM Tom_L: jthornton, http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_batch.jpg
01:33 PM Tom_L: ran a few of those yesterday
01:34 PM Tom_L: haha sherin got the boot for mouthing off
01:36 PM JT-Cave: in here?
01:36 PM Tom_L: yeah
01:36 PM Tom_L: not by anyone in this channel
01:37 PM * JT-Cave heads back to the machine shop
01:37 PM Tom_L: that woodruff cutter worked out great
01:50 PM jthornton: cool
01:51 PM jthornton: I wonder why I can't speak in here from element?
02:07 PM pmercado: Hi, CNC new user here, bought a 3018 here: https://afel.cl/producto/kit-cnc-3018-pro-con-laser-2500mw-accesorios/ First screen of linuxcnc need to choose a machine configuration, how can I know what kind of machine is mine?
02:11 PM jthornton: using Stepconf?
02:11 PM pmercado: eehmmm..... what is Stepconf ?
02:11 PM jthornton: which tool are you using to pick a machine configuration?
02:12 PM jthornton: Stepconf is a tool to make a stepper configuration
02:12 PM pmercado: uhm, ok
02:12 PM jthornton: if you installed LinuxCNC it's on the menu
02:12 PM XXCoder: 380 thousand?
02:12 PM pmercado: just ran Applications > CNC > LinuxCNC
02:12 PM XXCoder: curious what money units that is
02:12 PM jthornton: that just runs a configuration
02:12 PM pmercado: XXCoder: CLP
02:13 PM XXCoder: interesting.
02:13 PM pmercado: oh so first step is Stepconf and not main program
02:13 PM jthornton: correct
02:14 PM jthornton: ah your from Chile
02:14 PM jthornton: so in stepconf you pick XYZ axis configuration
02:14 PM pmercado: Yes, Hi from SouthAmerica
02:15 PM pmercado: and the driver type? how can I know ?
02:15 PM pmercado: well... machine was bought almost a year or two years ago by my father, he use a lot of machine here in home
02:16 PM pmercado: so some approach we had with it, like GRBL for laser prints
02:16 PM jthornton: hmm not sure LinuxCNC can run that controller
02:17 PM pmercado: now he want to use the drill that have the store link pack
02:17 PM jthornton: does the controller take step and direction inputs?
02:18 PM pmercado: can you tell me what do you mean with "controller" is a chip? is the board?
02:18 PM jthornton: what the steppers are connected to
02:19 PM jthornton: http://linuxcnc.org/http://linuxcnc.org/docs/2.8/html/user/user-intro.html#cha:linuxcnc-user-introductiondocs/2.8/html/user/user-intro.html#cha:linuxcnc-user-introduction
02:20 PM jthornton: that is a typical stepper system
02:20 PM XXCoder: bad url
02:20 PM pmercado: 404
02:20 PM jthornton: hmm
02:20 PM XXCoder: http://linuxcnc.org/docs/2.8/html/user/user-intro.html#cha:linuxcnc-user-introductiondocs/2.8/html/user/user-intro.html#cha:linuxcnc-user-introduction
02:20 PM jthornton: http://linuxcnc.org/docs/2.8/html/user/user-intro.html
02:20 PM jthornton: first section
02:21 PM jthornton: sorry double post on the first link
02:21 PM jthornton: http://linuxcnc.org/docs/2.8/html/user/user-intro.html#cha:linuxcnc-user-introduction
02:25 PM pmercado_: computer crash, sorry
02:26 PM jthornton: http://linuxcnc.org/docs/2.8/html/user/user-intro.html#cha:linuxcnc-user-introduction
02:26 PM pmercado_: let me read to go further with my configuration first, thanks for your help
02:26 PM pmercado_: will back these days for more, thanks for your time
02:26 PM jthornton: ok
02:42 PM XXCoder: record crushing temp here today
02:42 PM XXCoder: "yay"
02:42 PM XXCoder: seems 107f predicted for now. 97f now
02:43 PM _methods: oh nice
02:43 PM _methods: man i'd move back there if the weather stays nice like that
02:43 PM XXCoder: you'll enjoy fire hellscope season
02:43 PM XXCoder: we have special fan with filters to keep inside of house safe for that season.
02:44 PM _methods: all the weak trees will burn off and die eventually
02:44 PM _methods: you'll be left with rocks and fire proof trees lol
02:44 PM XXCoder: I need to move more north
02:44 PM _methods: yeah i'm glad i love the heat
02:44 PM _methods: global warming is an upgrade for me
02:52 PM jthornton: what can I use to make copper bright?
02:54 PM XXCoder: polishing?
02:54 PM XXCoder: i guess need to chemically strip tarnish first, then polish then protect
02:55 PM jthornton: copper wire
02:55 PM XXCoder: ahh wire dunno
02:55 PM CloudEvil: what guage, and do you care if it changes temper
02:56 PM jthornton: 10 awg, no
03:00 PM _methods: never dull
03:00 PM _methods: or brasso
03:01 PM _methods: i prefer never dull to brasso
03:02 PM _methods: https://www.amazon.com/Nevr-Dull-NEVER-DULL-POLISH/dp/B00097CRY6
03:03 PM jthornton: I'm scrapping copper wire, don't want to scrub it
03:03 PM jthornton: I want to make it #1 copper
03:03 PM _methods: oh
03:03 PM _methods: don't most people just burn it off?
03:04 PM _methods: i don't know what all those metal thieves do exactly
03:06 PM _methods: i think i remember someone telling me you can use a heat gun too and like coil it up in a barrel or can and heat it up until the plastic is about to melt
03:06 PM _methods: then just peel it right off
03:06 PM jthornton: plastic is off but the wire is not bright
03:07 PM jthornton: bright = #1
03:08 PM -!- #linuxcnc mode set to +vv by ChanServ
03:09 PM _methods: ah yeah i don't know of any tricks for that
03:13 PM jthornton: martha stewart says vinegar and salt water
03:14 PM XXCoder: basically tarash stripper, that
03:16 PM _methods: yeah salt and vinegar
03:18 PM roycroft: when i was using an immersion chiller in my brew kettle i would occasionaly clean it up by filling the kettle with about 1/3 white vinegar and 2/3 water, and then boiling it for a few minutes
03:18 PM roycroft: the copper would look pure and clean after that
03:19 PM roycroft: i never added any salt
03:20 PM jthornton: thanks
03:20 PM XXCoder: i guess salt adds strength of making it shiny but not always needed
03:21 PM roycroft: perhaps
03:21 PM roycroft: but what i did worked fine
03:22 PM jthornton: hmm I might even have some cleaner down in the brew supplies
03:31 PM perry_j1987: hi guys
03:33 PM Vq: Hi Perry
03:34 PM perry_j1987: im teathered on my phone atm cell service sucks so bad
03:34 PM Tom_L: jthornton, i used an acid on brass, i suppose that would work on copper just as well
03:34 PM Tom_L: works fast
03:34 PM Tom_L: then neutralize it
03:35 PM perry_j1987: got my bitsetter up and running on my 6040 last week
03:35 PM Tom_L: yay
03:35 PM roycroft: vinegar is an acid :)
03:35 PM Tom_L: perry_j1987, were it you asking about that cutter?
03:35 PM perry_j1987: which cutter
03:35 PM Tom_L: woodruff
03:35 PM perry_j1987: ya
03:35 PM perry_j1987: was interested in how it worked for you
03:35 PM XXCoder: vingear is on acid :P
03:36 PM Tom_L: i put up a short yt
03:36 PM perry_j1987: im curious if i would be able to use one on my 24k spindle
03:36 PM Tom_L: XXCoder, not very strong though
03:36 PM Tom_L: perry_j1987, no
03:36 PM XXCoder: lol
03:36 PM Tom_L: absolutely not
03:36 PM perry_j1987: it has mild torque down to 6k
03:37 PM roycroft: it works fine, tom_l
03:37 PM perry_j1987: but 8-9k is better for its low end
03:37 PM XXCoder: roycroft: https://media.discordapp.net/attachments/697946751012831232/859144733100474433/203691866_4092710957432381_6017710174014094289_n.png
03:37 PM Tom_L: first problem you would face would be the .500 shank
03:37 PM roycroft: that it's a weak acid is a feature
03:37 PM Tom_L: i suppose
03:37 PM Tom_L: iirc the stuff i used was muratic
03:37 PM roycroft: it doesn't eat up jt's profits by dissliving the copper as well as the tarnish
03:37 PM Tom_L: i'm not sure at this point
03:38 PM Tom_L: then you can use a nail and dc to get the copper back out of the vinegar :)
03:39 PM jthornton: https://matrix-client.matrix.org/_matrix/media/r0/download/matrix.org/yJcFniXtYlXFGwIByzGCDuLE
03:39 PM jthornton: roycroft, today's creation
03:39 PM Tom_L: poop rake?
03:39 PM jthornton: black walnut, red oak and T&T varnish oil
03:39 PM jthornton: yup
03:40 PM perry_j1987: i have er20 it can do 12.7mm
03:40 PM perry_j1987: also interested in it for use on alum not steel
03:40 PM Tom_L: i used it on alum
03:40 PM jthornton: well not quite I rake the Sweet PDZ with it after removing the poop
03:40 PM Tom_L: perry_j1987, https://www.youtube.com/watch?v=Ls1XabACpKI
03:42 PM roycroft: nice
03:42 PM roycroft: you can pull stringy swarf out of a pretty big lathe with that :)
03:43 PM jthornton: it's to level my Sweet PDZ in the poop tray
03:44 PM Tom_L: perry_j1987, i don't think at the lower speed you would need that spindle would handle it
03:44 PM perry_j1987: aye thats what im thinking
03:45 PM Tom_L: at 2k rpm the SFM is around 530
03:46 PM Tom_L: that was the main reason for getting the spindle motor i ended up with
03:47 PM perry_j1987: i think i'll be stuck doing this on the lathe one at a time till i get a mill with slower spindle
03:47 PM perry_j1987: then i could fixture them and do them that way
03:47 PM Tom_L: prior to that i stood them up and ran a .125 EM across them
03:49 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/Extra/A12_P2_1.jpg
03:49 PM Tom_L: as such since it's not a straight cut
04:49 PM JT[m]: test
04:49 PM CaptHindsight[m]: soaking in vinegar will help a bit
04:49 PM CaptHindsight[m]: then rig up a wire scrubber that scrubs as the wire is drawn across it
04:49 PM CaptHindsight[m]: vinegar and salt will work on the copper oxide, if you leftover cruft from melted plastic then you'll also need to scrub
04:49 PM CaptHindsight[m]: https://www.youtube.com/watch?v=hb4kSznglo0 non *duino or GRBL pick-n-place
04:49 PM CaptHindsight[m]: https://www.youtube.com/watch?v=_9llCTTmVfM hah several asking if he uses Openpnp
04:49 PM CaptHindsight[m]: Is This $100 Motor a Clearpath-Killer? https://www.youtube.com/watch?v=clgpZJFoqIQ
05:08 PM robotustra: good *
05:50 PM roycroft: seattle recorded its highest temperture ever today
05:50 PM roycroft: it's cooling off here
05:50 PM XXCoder: 102f here acording to google
05:51 PM roycroft: 41 was the high today, but i don't know if that was in downtown seattle, sea-tac, or elsewhere
05:51 PM roycroft: sea-tac
05:53 PM roycroft: vancouver bc also recorded its all-time record high today, and tomorrow is going to be even hotter there
05:57 PM roycroft: 33 today feels almost cool compared to the weekend, i must say
06:02 PM Eric_: did that guy decide the motor was, in fact, a clearpath killer?
06:12 PM CloudEvil: Eric_: no.
06:12 PM CloudEvil: But it was in many ways very good for the price.
06:13 PM {HD}: anyone ever used cncjs?
06:13 PM * CloudEvil imagines hard realtime javascript step generation.
06:14 PM {HD}: oh, it isn't what I thought it was. I thought it was more like laserweb.
06:14 PM {HD}: I am looking for a laserweb alternative
07:00 PM XXCoder: living room is at 100f now
07:00 PM XXCoder: my room 88f
07:01 PM XXCoder: thats with ac, my ac is getting bit behind but still livable room'
07:01 PM XXCoder: my mom is watching tv on my vp in my room
07:01 PM XXCoder: fun
07:09 PM Tom_L: clean the filter..
07:09 PM Tom_L: that will help
07:09 PM XXCoder: i clean it each couple months
07:40 PM _unreal_: god. its weird, its one of the rare times I have nothing I need or want to do
07:40 PM _unreal_: Im bored
07:42 PM tiwake[m]: set up a gemini server
07:42 PM tiwake[m]: https://gemini.circumlunar.space/docs/faq.gmi
07:52 PM snakedGT is now known as snaked
07:53 PM veegee: Damn, I turned the diameter of the chuck back plate recess part too small
07:53 PM Tom_L: get a smaller chuck?
07:54 PM Tom_L: weld it up and start again?
07:54 PM veegee: Only way I can think of fixing it is with a layer of epoxy
07:54 PM veegee: or turn a bushing out of steel
07:54 PM veegee: the backplate is cast iron, I don't know if I should weld that
07:55 PM Tom_L: maybe not
07:55 PM Tom_L: start over?
07:55 PM veegee: It's a D1-4 back plate, they're expensive
07:56 PM veegee: I think a layer of JB weld should work
07:57 PM veegee: the only purpose of it is to make sure the chuck is concentric
07:57 PM veegee: I don't know why they don't use a taper, it would be so much better
08:02 PM roycroft: get another back plate and save the one you spoiled for another chuck some other day
08:03 PM veegee: Yeah that's starting to look like the quickest option
08:04 PM roycroft: i don't know that it's the quickest option, but it's the correct one
08:04 PM roycroft: you don't want to mickey mouse with a back plate
08:04 PM roycroft: do it right, as everything you turn with that chuck depends on your having done it right
08:05 PM roycroft: the cast iron billet for my 4 jaw back plate has been sitting on my lathe for about six weeks now
08:05 PM roycroft: because i don't feel good about turning it with the skill set and equipment i have
08:05 PM roycroft: lately i've been thinking about having someone else do the turning
08:28 PM Tom_L: where's your sense of adventure?
08:29 PM roycroft: it's at this point more a sense of time
08:30 PM roycroft: i have so many other things to do, and i'm a bit over my head on this back plate
08:30 PM Tom_L: you know someone you trust to do it?
08:30 PM roycroft: if anyone here is intersted in doing it, let me know what you'd charge :)
08:30 PM roycroft: i don't, and that's the real problem
08:30 PM Tom_L: my lathe isn't big enough and too worn
08:31 PM roycroft: that's kind of my problem
08:31 PM roycroft: the 4 jaw is 8"
08:31 PM Tom_L: my bud could on his southbend but he's probably busy making airplane parts
08:31 PM roycroft: and all i have is a 6" 3 jaw
08:32 PM Tom_L: he did that big thread for me
08:32 PM roycroft: i tried making an adapter plate to mount the cast iron billet on, but i couldn't make it concentric enough to feel like i could do a good job
08:32 PM Tom_L: and the test thread for my brass part
08:32 PM roycroft: nice
08:32 PM Tom_L: 3tpi
08:33 PM Tom_L: kinda gotta be on your toes when cutting a thread like that
08:33 PM Tom_L: it happens pretty damn quick
08:34 PM roycroft: yup
08:34 PM Tom_L: he'd never used that gearset either
08:34 PM Tom_L: i was kinda surprised he had em
08:35 PM roycroft: especially if you have a small lathe, as the small lathes usually don't have a really slow low speed
08:35 PM roycroft: 3tpi at 15rpm is a lot different than 3tp at 120rpm
08:35 PM Tom_L: i dunno what low is on his but it was more than 15
08:36 PM roycroft: when i turned the spindle nose copy for my back plate it was exciting
08:37 PM roycroft: i don't remember what the slowest speed is on my lathe, but it's around 100rpm
08:37 PM roycroft: and the thread was 8tpi
08:37 PM roycroft: even that was exciting
08:37 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A12_New/A12_batch2.jpg
08:37 PM Tom_L: finished those up tonight
08:37 PM roycroft: 3tpi would be beyond exciting
08:37 PM XXCoder: awesome
08:38 PM roycroft: nice
08:38 PM CloudEvil: At some point, cranking the motor round with a wrench becomes an option
08:38 PM Tom_L: not sure you could cutting that thread
08:38 PM Tom_L: it was groaning the deeper it got
08:39 PM roycroft: running the spindle backwards and mounting the tool upside down in the back is an option
08:39 PM roycroft: then you could turn left to right, and run off the end
08:39 PM roycroft: and your blood pressure would not shoot up
08:39 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/temp/thread1.jpg
08:42 PM Tom_L: running backwards, the spindle may have unthreaded itself on that thing
08:43 PM roycroft: yes, if it's a threaded spindle without a lock
08:43 PM roycroft: like mine
08:43 PM veegee: The machine taper, such a beautiful thing
08:43 PM Tom_L: i'm not sure if his locks but i don't think it does
08:43 PM veegee: I knocked the cross slide just 0.5mm too much
08:43 PM roycroft: i've seen some modes that let one lock the chuck on the spindle
08:43 PM veegee: that's all it takes to mess up a back plate
08:43 PM veegee: it was otherwise perfect
08:44 PM roycroft: you're not supposed to do that, veegee
08:44 PM Tom_L: veegee, cut twice measure once...
08:44 PM roycroft: fyi :)
08:44 PM Tom_L: errr...
08:44 PM veegee: I know, I messed up the most critical dimension
08:44 PM roycroft: and if i outsource my back plate i still have to do that part myself
08:44 PM veegee: The diameter of the chuck recess is 95.00mm
08:45 PM veegee: I don't know if that's a standard
08:45 PM roycroft: i need to face it and turn the register while it's mounted on my lathe
08:45 PM roycroft: there is no standard
08:45 PM veegee: because if it is, then that backplate is useless unless I weld/epoxy a bushing to it
08:45 PM roycroft: you measure your chuck and you turn to fit it
08:45 PM veegee: Then there is hope it can be used for another chuck
08:45 PM Tom_L: several times
08:45 PM roycroft: save it for a collet chuck or something
08:45 PM veegee: yeah
08:58 PM veegee: ok so for vehicles that are used relatively infrequently, like forklifts, I change the oil yearly
08:59 PM veegee: But filter should be fine right?
08:59 PM veegee: Not like the filter media degrades that much over time
08:59 PM veegee: But anti wear additives and such in oil do degrade
09:01 PM roycroft: ot
09:02 PM roycroft: it is down to 30 degrees now, and that actually feels "cool"
09:02 PM roycroft: while normally 30 degrees is pretty hot
09:02 PM veegee: It's 30 degrees right now and I hate it
09:02 PM veegee: There's a heat warning for Toronto
09:02 PM roycroft: not like the heat warning for vancouver
09:03 PM veegee: I've been too lazy to set up the ACs
09:03 PM veegee: and the heat is making me even lazier
09:03 PM XXCoder: my room cant go cooler than 88f
09:03 PM XXCoder: living room is 102f
09:08 PM roycroft: if you would only start using celcius instead of those archaic units it would be a lot cooler
09:09 PM XXCoder: and cooler too
09:09 PM roycroft: your room would only be 31 degrees, and your living room only 39 degrees
09:09 PM roycroft: that's a whole lot better than 88 and 102
09:09 PM XXCoder: starting to go down
09:09 PM XXCoder: 101f outside
09:18 PM veegee: I bought the shittiest, cheapest brazed carbide kit on amazon for $10
09:18 PM veegee: I was hoping that the carbide was actually carbide and not some brazed HSS lol
09:18 PM veegee: well you can't even braze HSS without ruining its hardness
09:18 PM veegee: But turns out it was actual carbide
09:19 PM veegee: Sharpened nicely on my silicon carbide wheel, and dare I say, gave me better results than carbide inserts
09:19 PM veegee: I can run it like I run HSS, but faster and hotter
09:19 PM veegee: I don't have to worry about the feeds and speeds like you do with carbide inserts to make their chipbreakers work properly
09:20 PM veegee: Or risk cratering and failure. I can just resharpen, but didn't even have to do that
09:21 PM roycroft: it's down to 24 now
09:21 PM roycroft: yesterday at this time it was still 41
09:21 PM veegee: So... I think I'm going to be grinding the chipbreakers off used carbide inserts flat and brazing them
09:21 PM XXCoder: outside is finally starting to cool down
09:21 PM XXCoder: 101f
09:22 PM roycroft: it's cooling off much faster than forecast here
09:22 PM roycroft: and the forecast for the rest of the week has lower temps - a couple days in the 20s, even
09:22 PM roycroft: hopefully that trend will hold true up north
09:28 PM veegee: I love machine tapers so much
09:28 PM veegee: So forgiving
09:29 PM veegee: such a perfect fit
09:29 PM veegee: I wonder if my spindle nose is replaceable
09:32 PM veegee: On another note, is the chuck supposed to be sitting flat against the inner face (the one inside its recess), or the outer face?
09:36 PM roycroft: different chucks/spindles register in different ways
10:49 PM veegee: What are "face plates" for?
10:50 PM veegee: I have one, but no idea what I'd use it for
10:50 PM veegee: Holding things like a brake rotor with bolts, maybe?
10:58 PM veegee: And wtf you can get oversize 5C collets?! https://www.kbctools.com/itemdetail/1-850-400S
11:06 PM CloudEvil: That's not quite meant to do routine holding of work.
11:06 PM CloudEvil: You machine it to hold specific, perhaps very unusual and oddly shaped material
11:07 PM veegee: yeah that makes sense
11:07 PM veegee: I just realized there's a simple solution to my chuck back plate issue
11:08 PM CloudEvil: And yes, faceplates can be used to bolt basically anything down to them.
11:08 PM veegee: I'll just buy a cheap piece of C1018 and fit it to the backplate and use it as a new layer to properly machine the protruding section
11:08 PM CloudEvil: And use the lathe as a mill to flatten a surface for example
11:30 PM roycroft: i would not do that
11:43 PM roycroft: if you want to fix your back plate properly, get yourself a eutectic flame spray welding system and build the metal up propery