#linuxcnc Logs
Oct 12 2018
#linuxcnc Calendar
12:44 AM pink_vampire: skunkworks: interesting
01:32 AM gloops: https://www.alibaba.com/product-detail/Wholesale-small-wood-slide-open-usb_60693565331.html
01:33 AM pink_vampire: nice
01:33 AM gloops: literally couldnt buy the timber here for those for that money
01:33 AM gloops: 65 cents, not even worth setting the machine up if you got the wood free
01:34 AM pink_vampire: yeah
02:02 AM gloops: well, i may have made one fatal error with my bandsaw build, the body of it is so heavy i think its gonna bow the runners lol
02:03 AM gloops: so i can either have slightly bowed boards, or i need to insert something in the tubes to strengthen them
02:06 AM Deejay: moin
03:08 AM Loetmichel: *GNAH*... some customers... just got an order to EMI-measure half a dozen brandnew video projectors for 30keur++ each... Put the first in the measurement chamber: *CLANK* Customer obviously dismanlted it and put only 2 of 8 screws back in the botton cover... AND managed to misplace on of the corner gussets that have the threads for those bottom lid screws... *designing a copy of that gusset*
03:08 AM Loetmichel: *warming up the CNC mill*... *sigh*
03:26 AM pink_vampire: Loetmichel: did you got a mill?
03:26 AM Loetmichel: router
03:27 AM Loetmichel: two 6040 here at the company now... thoug one sitll isnt operational yet, have to find time to go to the wood supplier to get marine plywood for its enclosure
03:40 AM Jin^eLD: morning
03:48 AM pink_vampire: I don't know why it took me so long to make an enclosure to my machine
03:50 AM pink_vampire: I just used insulation foam, that was surprised me how strong it is.
03:50 AM pink_vampire: hi Jin^eLD
04:04 AM gloops: of all the stupid things i welded a mouting on the wrong side of the box section...pfff
04:56 AM jthornton: my neighbor has lost 6-8 hens and a turkey and now the dog owner is going to "TRY" and keep the dog in... now she has the waiting game to see when the shit kid lets the dog out again after mommy leaves for work
04:57 AM jthornton: gloops: just flip it over lol
04:58 AM gloops: ive just put it right lol
04:59 AM jthornton: on a good note I finally sorted out what the heck I forgot to do with my python code and now I expect the pseudo door to open at dawn on my test rig
05:01 AM jthornton: 6°C this morning nice and crisp
05:05 AM Loetmichel: pink_vampire: arguably my machine at home is a "knee mill"... its small though: https://www.youtube.com/watch?v=a9Ov69t0uwo
05:06 AM pink_vampire: I like your light
05:07 AM jthornton: I have a dozen of those lights from ikea
05:07 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=12569&g2_imageViewsIndex=1
05:07 AM Loetmichel: yes, its ikea jansö
05:07 AM Loetmichel: very good for small machine lights
05:07 AM jthornton: aye
05:08 AM pink_vampire: where did you got it?
05:08 AM jthornton: ikea
05:08 AM Loetmichel: because reasonably waterproof/sealed, all metal design (can take touching the mill bit accidentally) and pretty bright if you put the 3W led head directly near to the mill bit
05:08 AM Loetmichel: ikea
05:08 AM Loetmichel: bought a dozen for 10 eur each.
05:09 AM Loetmichel: littered them all around at home, nighstands, my desk, my wifes desk, the CNC, the bandsaw and so on
05:10 AM pink_vampire: I think i know where I'm going to do shopping very soon
05:12 AM Loetmichel: i have a couple of them that flicker like crazy... its not the led or the PSU though, its the dirt cheap in line switch.
05:12 AM Loetmichel: s/in line/cord
05:14 AM pink_vampire: do you know about good pump for the spindle?
05:16 AM * Loetmichel uses a cheap indoor fountain pump
05:16 AM Loetmichel: the coolant dosent get contaminated, so that is sufficient
05:16 AM Loetmichel: the submersible kind
05:16 AM Loetmichel: you dont need much volume nor pressure
05:24 AM XXCoder: hey all
05:24 AM pink_vampire: hi XXCoder
05:24 AM jthornton: hay
05:25 AM * jthornton is just looking at blynk
05:25 AM pink_vampire: Loetmichel: but the tank is on the floor
05:25 AM XXCoder: is for horsies
05:26 AM Tom_L: 49F Hi 55
05:26 AM Loetmichel: pink_vampire: no problem as long as you return line goes back below the coolant surface in the tank
05:26 AM XXCoder: jthornton: in one fiction book, invaders discovered that somehow country people they are invading can poison everything, including fruit in trees, cows that is still living, so on
05:26 AM Loetmichel: closed loop: no pressure needed
05:26 AM XXCoder: maybe theres a way for chickens lol
05:27 AM Loetmichel: you may have to fill the system until all air is out of the tubes though
05:27 AM pink_vampire: I'm using now RV pump
05:27 AM pink_vampire: but it is noisy
05:27 AM Tom_L: yeah, i used a submersible fishtank pump because i had it
05:27 AM XXCoder: gloops: 1000 at 63 cents each lol
05:27 AM jthornton: I know how to poison dead chickens to kill coyotes but dogs don't mess with a dead one
05:28 AM jthornton: you just have to give the dog lead poison
05:29 AM XXCoder: Loetmichel: yeah I have one for my machine. sadly still in box lol
05:29 AM XXCoder: jthornton: somehow keep chicken alive lol
05:31 AM XXCoder: orrrr chicken rv :P
05:34 AM jthornton: well a dog won't eat the chicken usually because they are not hungry
05:34 AM XXCoder: it'd be really powerful contact poison :P
05:35 AM XXCoder: seriously though dont use poison, we had a dog die by someone feeding it antifreeze. our dog didnt kill anything or even gotten out of yard
05:35 AM jthornton: well with tracking powder the dog just has to walk on it lol
05:40 AM jthornton: the problem with bait and stuff is you can't just target one animal
05:40 AM XXCoder: indeed
05:40 AM XXCoder: you'd probably attract wasps also
05:41 AM XXCoder: they apparently love them chicken
05:41 AM jthornton: yea bits of raw chicken in wasp traps works well
05:41 AM SpeedEvil: Trap, and release accidentally caught dogs.
05:42 AM XXCoder: or "acciently caught" dogs
05:42 AM jthornton: the problem is when you release the snare the dog won't leave on it's own anymore
05:46 AM jthornton: XXCoder: I fingered out my dumb mistake on my python code
05:47 AM XXCoder: yeah? what was error? hopefully not something superstupid like not initalizing variabke
05:47 AM jthornton: forgot to declare the variables as global in the function so update was only updating local variables lol
05:47 AM SpeedEvil: :)
05:47 AM XXCoder: doh
05:47 AM jthornton: only mildly stupid lol
05:48 AM XXCoder: not as stupid as my code lack of something->pointerthing = null; :)
05:48 AM jthornton: focused too much on damn schedule which does not work for days
05:50 AM XXCoder: anyway yeah scope of variables you gonna keep eye on that :)
05:52 AM jthornton: I'm just glad I finally sorted out that schedule.day() is flaky and moved on to my own code to update the astral times for the new day
05:52 AM XXCoder: talking about time
05:53 AM XXCoder: I got pebble classic. looks awesome, but charger didnt work so waiting for new one to arrive. bah lol
05:54 AM jthornton: what is a pebble?
05:54 AM syyl: a smatch
05:54 AM XXCoder: its interesting smart watch, uses eink
05:58 AM jthornton: I wish my gear motor would show up so I can start building the new chicken door
06:06 AM XXCoder: waiting game is so boring
06:08 AM SpeedEvil: Make a gear motor from bear skins and flint knives.
06:09 AM XXCoder: I want a show where guy start with just shorts in wild and end with cnc machine and computer to run it and make gcode
06:09 AM jthornton: we have chert but flint is pretty rare around here
06:09 AM XXCoder: rocks of all kinds here
06:09 AM XXCoder: lot of terrain history here
06:10 AM jthornton: and only a few black bears as I'm too close to the city I assume
06:16 AM jthornton: one of the hens laid an egg from the roost yesterday then when the lights came on the hens stated eating it cause it was broken
06:18 AM XXCoder: not surpised as egg is pretty sigificant resources
06:18 AM XXCoder: as well as reclaim it if it is broken
06:19 AM jthornton: aye but I have one egg eater that will bust her eggs if given the chance and eat them
06:19 AM jthornton: what a pia to clean up
06:21 AM XXCoder: jeez lol
06:22 AM jthornton: put an egg in my pocket yesterday and when I grabbed it to weight it it broke in my pocket what a mess
06:23 AM jthornton: mickey
06:24 AM XXCoder: yeah remember you menioning that. funny. lol
06:40 AM jthornton: another egg laid from the roost...
06:42 AM XXCoder: how many do you get in a day?
06:42 AM jthornton: 5-8
06:43 AM XXCoder: wow never run out of eggs lol
06:43 AM XXCoder: they can last over a month in room temperate if you keep it not washed
06:43 AM jthornton: sometimes a challenge to give them away lol
06:43 AM jthornton: aye, I never wash them
06:45 AM XXCoder: heh I still think my infinite bug feeder for chickens would work
06:45 AM XXCoder: all you'd need to is to refill bugs food - ie: food trash sometimes
06:46 AM jthornton: yea my chicken door code said to open the door on time... on to the next step
06:57 AM XXCoder: cool :)
06:59 AM jthornton: pretty crispy outside in shorts and a muscle shirt lol
07:01 AM XXCoder: :)
07:03 AM Loetmichel: crispy?
07:03 AM Loetmichel: as in hot or as in cold?
07:03 AM jthornton: 6°C\
07:04 AM Loetmichel: thats "wohlfühltemperatur" for germans with shorts and tshirt :-)
07:04 AM Loetmichel: jk, that would be a bit cold for my taste. luckily its about 19°C out here
07:04 AM jthornton: aye
07:04 AM XXCoder: given germany language tendacy to cram words together I guess its (something) temperate
07:05 AM Loetmichel: "feel good temperature"
07:05 AM jthornton: feel-good temperature
07:07 AM XXCoder: lol ojk
07:07 AM * Loetmichel worked outdoors for a few decades (electrician on construction sites)... cold isnt that bad, just work a little harder, gets warm. Being on a ceiling mold in third floor all day pulling cables and armor tube wetween the rebar before the concrete gets pured at 30°C is a PITA though
07:08 AM Loetmichel: -w+b
07:13 AM * jthornton has worked as an electrician and you always work in the dark... as soon as the lights come on your done working there
07:13 AM robotustra: :)
07:13 AM XXCoder: or you light up because someone threw switch while youre working
07:29 AM Loetmichel: hihi
07:30 AM robotustra: illuminati are electicians becasue they do illumination
07:31 AM XXCoder: lol
07:31 AM XXCoder: one time we was rewiring kitchen, and we turned off power there. in least that was what we thought
07:32 AM XXCoder: friend got stuck holding wires so i made two handed fist to break his arms off wire, but he managed to react and let go before I hit his hands
07:34 AM XXCoder: its nasty when electricity causes person to be unable to let go
07:34 AM * Loetmichel once was on a fuse panel in a house... yelled down the staircaise to the apprentice: "did you switch off unit #14?" "YES!" ... so i touched the 3 phase main terminals with my finger... *good* *good* *OUCH!* turned around, started yelling "YOU FORGOT ONE PHASE!" when i notced my boss standing behind me...
07:34 AM robotustra: the first rule of electrician - behave like wires are under the tension even if you switched off the power.
07:35 AM Loetmichel: ... MAN did he chew me out for being to lazy to go down three flights of stairs to the car to get the "duspol"
07:35 AM XXCoder: robotustra: I always do. my friend didnt lol
07:35 AM XXCoder: even when known dead I always treat wires like its live
07:39 AM Loetmichel: robotustra: 230V isn that bad if you know whats coming and touch it in a way you cant "latch on" to the wire once your muscles spasm
07:39 AM Loetmichel: still boss was not amused that i used my finger as a voltage tester ;9
07:42 AM robotustra: to test if wire is hot you should use external side of the arm, in this case you'll not clamp your hand in case it's hot
07:49 AM Jin^eLD: I picked up a Solberga SE1630 drill press at an auction yesterday, does anyone happen to have a service manual? I only found a parts manual so far... was wondering about lubrication etc
07:54 AM XXCoder: sometimes it seems to me that service manuals is top secret
07:59 AM Jin^eLD: yes.. no idea why they can't be downloaded freely.. it's not like you really need one if you don't already own the machine
07:59 AM gloops: http://www.hhrobertsmachinery.com/Support/Manual-machine-Parts-Lists/manual-machine-parts-lists.html
08:00 AM Jin^eLD: gloops: thats the parts manual, also handy but only for ordering new spare parts
08:00 AM Jin^eLD: I am looking for info what lubricants to use, where, how much etc
08:01 AM Jin^eLD: oh well, let's see if the manufacturer answers
08:01 AM Jin^eLD: Ortlieb was really nice, they sent me a very good manual for the collet chuck, maybe I'll be lucky with Solberga as well
08:02 AM Jin^eLD: was just hoping to get some info if anyone happened to have the same drill around here :)
08:02 AM gloops: yeah, just get various links to forum posts etc, would have to chase them up
08:16 AM Valen is now known as Valen_
08:16 AM Valen_ is now known as Valen
08:46 AM gregcnc: Jin^eLD did you see this? https://goo.gl/svWFdi
08:51 AM Jin^eLD: yes, I was planning to register there in the evening, but since the manual is probably in swedish that was not my first choice
08:51 AM Jin^eLD: worst case will help myself with google translate or ask my friends wife
08:52 AM Jin^eLD: she's from .se
08:52 AM gregcnc: you could probably scan and translate fairly easy these days
08:53 AM Jin^eLD: well
08:54 AM Jin^eLD: well a manual - probably yes
08:54 AM Jin^eLD: I did not have that good experiences with google translate ;)
08:54 AM gregcnc: i've done it in google drive a few years ago
08:54 AM gregcnc: enough to figure what to oil and when
08:55 AM Jin^eLD: when I was searching for lathes in Hungary (back then I wanted an E2N) I was really close at getting into trouble with translations :) luckily I have a habit of counter checking the translated output back and forth vs several languages
08:55 AM Jin^eLD: yes, for those things it will be enough, I agree
09:07 AM gloops: interesting curio https://www.ebay.co.uk/itm/Burgmaster-6-Station-Spindle-Turret-Drill-Tapping-Drilling-Bench-Pillar-Drill/183481635428?
09:19 AM gregcnc: you seen those quite often here
09:21 AM gloops: be lucky to get that for it methinks
09:24 AM Jin^eLD: that's one weird looking machine :)
09:26 AM gregcnc: https://youtu.be/J4FEmIIi_90
09:43 AM gloops: would save a lot of time with some processes
09:47 AM methods_: https://fossbytes.com/icann-global-internet-outage-over-next-48-hours/
09:49 AM Glorfindel: wow
09:50 AM gregcnc: huh, my internet has been odd since yesterday
09:51 AM Jin^eLD: that'd be awesome, then I could stop doing work for today and go to the shed because I "cant work without internet" lol ;)
10:00 AM CaptHindsight: http://www.3ders.org/articles/20181012-digital-metal-launches-automated-production-concept-for-3d-metal-printing.html
10:00 AM CaptHindsight: "print 42-micron layers at speeds of up to 100 cubic centimeters per hour. Until now, this binder-jetting technology has already enabled production of more than 300,000 components. "
10:01 AM CaptHindsight: 100 cc/hr is really slow
10:01 AM Jin^eLD: CaptHindsight: well, I doubt any of us will be able to afford that anyway :)
10:01 AM CaptHindsight: LCNC controlled inkjet binder printer is easy
10:02 AM Jin^eLD: I find this guy somewhat promising in terms of cost: http://iro3d.com/
10:02 AM Jin^eLD: but its of course not exactly the same...
10:02 AM CaptHindsight: how useful would metal powder + binder that requires sintering be?
10:04 AM Jin^eLD: depends on the output, no? I mean, if you can get strong parts in the end, like, print gears for your gearbox - that'd be really cool
10:05 AM Jin^eLD: I also read an interesting article that this could open totally new possibilities, the gears dont have to be completely solid, instead the structure could be chosen in a way to support direction where max strengh is needed and otherwise be hollow, reudicing weight
10:06 AM CaptHindsight: that is true for machined gears as well...
10:07 AM CaptHindsight: this is where either the marketing dept or the news writers go off track
10:08 AM CaptHindsight: a part that is just sintered won't be as strong as a machined part unless you add more metal to fill the voids
10:08 AM Jin^eLD: what kind of metal printing do they use for airplane turbines?
10:09 AM CaptHindsight: we worked on SLA printing the molds and casting
10:10 AM CaptHindsight: 3d printing an alloy that changes composition is a big benefit
10:12 AM CaptHindsight: https://digitalmetal.tech/home-digital-metal/how-it-works/ from the link above
10:14 AM Jin^eLD: looks like a more sophisticated version of what the iro3d guy is trying to do
10:14 AM Jin^eLD: its all cool, but not affordable :(
10:16 AM CaptHindsight: https://youtu.be/IzIvxRObadw?t=443 you SPD links shows dry powder being deposited
10:16 AM CaptHindsight: or is there a binder in the powder?
10:16 AM Jin^eLD: the iro3d guy? yes, what he does is really primitive, basically its just a more advanced way of filling sand forms
10:16 AM CaptHindsight: it's obvious from his video
10:17 AM CaptHindsight: sorry , not obvious
10:18 AM Jin^eLD: yep, its not
10:18 AM CaptHindsight: oh is he just depositing the powder for the "mold" and the metal powder?
10:18 AM Jin^eLD: my impression was that he just builds up the forum using metal powder and sand
10:18 AM Jin^eLD: I think so, yes
10:18 AM CaptHindsight: ah
10:19 AM Jin^eLD: so its not comparable to the pro-links you posted, this is more home-use kind of stuff I guess, but really simple
10:20 AM CaptHindsight: http://www.3ders.org/articles/20180130-aerosint-develops-first-commercial-multi-powder-sls-3d-printer.html
10:22 AM CaptHindsight: his SPD printer is a bit slow
10:23 AM Jin^eLD: for me I'd prefer slow, but affordable to not affordable at all, provided it can do the job... for manufacturing large series of some stuff it's a different story of course...
10:24 AM CaptHindsight: you could retrofit a small router to deposit powder
10:24 AM CaptHindsight: or "3d" (FDM) printer
10:24 AM Jin^eLD: probably
10:25 AM Jin^eLD: should be possible to replicate that
10:25 AM Jin^eLD: most fiddling is probably in filling up the crucible nicely
10:26 AM Jin^eLD: like when to pour how much and make sure to fill the corners
10:26 AM Jin^eLD: otherwise, basic layered model build up is probably not that much different from regular 3D printers
10:28 AM CaptHindsight: what simple about using a nozzle to deposit both metal and sand is that you don't need a spreader
10:29 AM CaptHindsight: it's just not fast
10:30 AM Jin^eLD: for me the main disadvantage is the surface, I think everything baked in sand will probably require some mechanical surface finish afterwards
10:32 AM CaptHindsight: even the inkjet + binder and sintered parts need secondary operations
10:33 AM Jin^eLD: oh.. so no way around that anyway yet?
10:34 AM Jin^eLD: well, maybe if I manage to finish all my ongoing projects I may give that a try :)
10:35 AM CaptHindsight: http://www.precisionpm.com/images/dscn0353_big.jpg
10:35 AM Jin^eLD: that does look really nice
10:36 AM CaptHindsight: depends on how "finished" you need it
10:36 AM Jin^eLD: could you just harden and use that gear or does it need more polishing?
10:36 AM Jin^eLD: I surely have not enough knowledge in the mechanical area
10:37 AM Jin^eLD: or say, in the mechanical engineering area
10:37 AM Jin^eLD: I can repair the gearbox of my car, but I don't know about gear properties and requirements
10:37 AM CaptHindsight: depends on the application, kids toy or rocket flap actuator
10:37 AM Jin^eLD: offroader
10:38 AM CaptHindsight: HF drill or any other good drill :)
10:38 AM Jin^eLD: lol :)))
10:38 AM Jin^eLD: probably... especially taking into account that its from 1976 ;)
10:39 AM Jin^eLD: they still make parts for those, but the quality got much much worse, everything fits badly, some custom tuning of the gearbox would probably work wonders, also regarding the noise level
10:40 AM Rab: How predictable is consistency and performance of the sintered metal? If you can't e.g. run a useful FEA, there's a limit to how far you can "engineer" the design.
10:40 AM Rab: Which will limit useful applications.
10:40 AM CaptHindsight: http://www.precisionpm.com/custom-precision-powdered.html
10:41 AM CaptHindsight: look at their apps
10:41 AM CaptHindsight: but their method is like injection molding
10:42 AM Rab: I guess those guys know what they're doing, but it doesn't necessarily extend to DIY or home shop-level processes.
10:42 AM CaptHindsight: powder compressed into a mold
10:42 AM CaptHindsight: then sintered
10:42 AM CaptHindsight: with binder + metal powder you have more voids since it's not as dense
10:42 AM Jin^eLD: Rab: well that was one of my points... its just unaffordable for DIY use
10:43 AM Jin^eLD: and it'll probably take a really long while till the prices go down there
10:43 AM Jin^eLD: provided that we will be allowed to buy metal printers at all :)
10:44 AM CaptHindsight: how down is down? $5k, $2K, $50
10:44 AM CaptHindsight: what was the sweet spot for the all the CNC glue guns?
10:44 AM Rab: $200
10:45 AM CaptHindsight: when they were <$1k
10:45 AM CaptHindsight: heh
10:45 AM Jin^eLD: <1k is probably down enough
10:46 AM CaptHindsight: a chinaco router is ~$500 for a 8x10"
10:46 AM Rab: Sintered metal is more desirable than PLA vermicelli, so I'd put it somewhere between laser cutter and waterjet.
10:47 AM CaptHindsight: but it's non contact so you could make the machine frame for $200
10:47 AM cpresser: just get all the tools/machines :)
10:47 AM Rab: <$10K for hackerspaces and moneyed techies.
10:48 AM CaptHindsight: and they wouldn't need a big printer
10:48 AM CaptHindsight: maybe 5^3 inches
10:49 AM CaptHindsight: 12.5cm^3
10:50 AM CaptHindsight: vs sand casting printer
10:50 AM CaptHindsight: what would be more useful?
10:51 AM CaptHindsight: print sand molds vs metal parts that need to be sintered?
10:51 AM CaptHindsight: casting might be outside of what most hackerspaces can do
10:52 AM CaptHindsight: electric kiln for sintering is safer and easier
10:55 AM gloops: how long are these printed molds taking to print?
10:56 AM SpeedEvil: CaptHindsight: Zamak is pretty decent
10:56 AM CaptHindsight: https://www.exxentis.co.uk/
10:57 AM CaptHindsight: gloops: the https://youtu.be/IzIvxRObadw?t=443 says 24 hours for the size shown
10:59 AM gloops: that is impractical
10:59 AM CaptHindsight: not for production but it's ok for home use
11:01 AM gloops: still i suppose once you got the first casting you can take a mold from that for using lost wax or something
11:02 AM gloops: if youre making more than 1 of the same item
11:03 AM CaptHindsight: maybe SLA with metal paste, metal powder and binder paste
11:04 AM CaptHindsight: spread even layer of metal paste, selective cure with laser or DLP, rinse part, sinter
11:04 AM gloops: sounds technical lol
11:05 AM CaptHindsight: I bet the "spreader" patent would be an issue
11:05 AM CaptHindsight: would be a top projection SLA
11:06 AM gloops: print mold for #1, cast the aluminium, make silicone mold on that part, cast endless wax parts, set in casting sand, with drain pipes, make endless aluminium copies
11:06 AM CaptHindsight: depends on the objective
11:07 AM gloops: yeah, you might only want 1 intricate part
11:07 AM CaptHindsight: 3d printed moolds or patterns can make parts in shapes that can't be machined in one piece
11:07 AM CaptHindsight: moolds/molds
11:08 AM CaptHindsight: vs easy part you make a zillion of
11:08 AM gloops: and 24 hours sounds a lot, but the manual way may take longer
11:08 AM CaptHindsight: hackerspace gear, could take days
11:08 AM CaptHindsight: if ever
11:09 AM CaptHindsight: printed and sintered gear could be made with far less engineering and hands on skills...
11:09 AM Jin^eLD: we 3d printed some parts, made a form out of how is it called, gypsum? then burned out the plastic that was inside and then used the remaning form for casting, it did work but it was a somewhat teadious process
11:09 AM CaptHindsight: often you'd still have poorly designed parts
11:10 AM CaptHindsight: but thats how you learn, well some of us
11:11 AM gloops: i made a steel plate mold when i was trying to cast ally plates, but that was after an impressive explosion of a stone mold
11:12 AM gloops: 3kg of liquid ally went up like a bomb
11:19 AM CaptHindsight: http://www.3ders.org/articles/20180716-lockheed-martin-arconic-collaborate-on-metal-3d-printing-and-lightweight-aerospace-materials.html
11:20 AM CaptHindsight: they likely machine just the holes to finished size
11:22 AM gloops: difficult to cast normally, to get the metal to flow round those delicate channels
11:25 AM CaptHindsight: metal powders are easier to produce than polymer powders
11:30 AM CaptHindsight: powder bed spreader can be combined with a gantry
11:31 AM CaptHindsight: lower roller for spread pass, lift for print pass
11:42 AM CaptHindsight: $50 https://www.ebay.com/itm/15Kpps-Laser-Scanning-Set-Galvo-Galvanometer-Scanner-for-Laser-Light-Show/183248222271
11:49 AM pink_vampire: CaptHindsight: how do you control it?
11:51 AM Rab: Wonder if this is a reasonable bed for a small router: https://www.ebay.com/itm/163301168485
11:51 AM CaptHindsight: ^^ is analog +-5V
11:51 AM Rab: Presumably it's pretty flat, rigid, and closely dimensioned.
11:51 AM pink_vampire: Rab: OPTICAL BREADBOARD
11:51 AM pink_vampire: over kill
11:52 AM Rab: Shrug, raw cast Al tooling plate is about half the price.
11:52 AM CaptHindsight: vs already has holes tapped
11:53 AM pink_vampire: and you can make the holes with the cnc easy
11:53 AM CaptHindsight: labs often don't have machine tools so they buy the pre made stuff
11:54 AM pink_vampire: Rab: on a router you need to use waste board, so the plate below it can be anything
11:55 AM pink_vampire: and you anyway true the waste board flat the first time you use it.
11:55 AM Rab: pink_vampire, I mostly use workholding jigs which need to be mounted reproducably to a rigid surface.
11:55 AM gloops: yeah, suppose it depends what youre doing, but that will get ripped to shreds with normal router use
11:56 AM pink_vampire: then maybe..
11:56 AM pink_vampire: but just for few holes to pay 125$
11:56 AM fragalot: Heya
11:57 AM Rab: Like cutting into your mill table, just don't do that then. ;)
11:57 AM pink_vampire: it is not even 1'X1'
11:57 AM Rab: I don't know if that specific table is a good deal, just something to keep my eyes open for.
11:58 AM pink_vampire: for 130 you can get 1" 1'x1'
11:59 AM fragalot: but how flat is it then, pink_vampire
11:59 AM pink_vampire: you make a face operation on it
11:59 AM gloops: wood thickness is often not to close tolerances, you always rip the spoil board up
12:00 PM Rab: pink_vampire, 1" plate is a lot of weight to be dragging around.
12:00 PM pink_vampire: fragalot: https://i.imgur.com/CsM6itr.png
12:00 PM gregcnc: ground, tapped, anodized not bad if you want a table with threaded holes
12:00 PM gloops: or it might be bowed or whatever, fairly normal to cut over depth
12:00 PM fragalot: I agree with gregcnc.
12:00 PM fragalot: pink_vampire: did you take that picture with a potato?
12:01 PM pink_vampire: no
12:01 PM gregcnc: eh, they are 135 new
12:01 PM CaptHindsight: maybe a HAL component to use stereo sound card for analog out
12:01 PM gregcnc: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=159
12:01 PM pink_vampire: fragalot: https://i.imgur.com/GciUzVs.png
12:03 PM CaptHindsight: or DAC from LPT port, could even be USB DAC
12:03 PM fragalot: pink_vampire: looks very nice, but how flat is it really? :)
12:03 PM pink_vampire: gregcnc: do you know that is not super flat like a surface plate, it is just look nice.
12:04 PM pink_vampire: fragalot: like glass
12:04 PM * fragalot has a surface plate grade hunk of ground cast iron for his build
12:05 PM gregcnc: the flatness isn't as good as expected, so keep looking
12:05 PM pink_vampire: Rab: https://i.imgur.com/QH1o61k.jpg
12:05 PM CaptHindsight: https://www.youtube.com/watch?v=LCI04jkKOeE
12:05 PM gloops: whats the flatness matter, its a router, does it run flat? no
12:06 PM fragalot: CaptHindsight: very neat and all, but what is the point in today's world? :P
12:06 PM CaptHindsight: fragalot: cheap analog out from LCNC
12:06 PM CaptHindsight: drives galvos
12:06 PM fragalot: I see
12:06 PM pink_vampire: gregcnc: it is not design to be flat, it is just to mount stuff on it, the accuracy come from the holders adjustments
12:07 PM CaptHindsight: USB DAC is also cheap
12:07 PM Rab: gloops, I would like my routers to run flat.
12:08 PM CaptHindsight: and you don't need real time for the galvos, as long as they are synced
12:08 PM fragalot: Rab: gloops works mainly with wood, where being out of flat or out of square by 0.05mm doesn't matter
12:08 PM fragalot: the wood will move more than that with moisture anyway
12:11 PM Rab: The Thorlabs breadboards are rated for flatness, but it's pretty awful (±0.006" over 1 ft2). Maybe that's the spec for the original plate stock.
12:11 PM fragalot: ouch
12:12 PM pink_vampire: I told you
12:12 PM fragalot: get an optical flat instead
12:12 PM fragalot: :P
12:12 PM gregcnc: yeah just drill and tap or t slot it
12:12 PM fragalot: painters tape & superglue
12:13 PM Rab: Facing a tooling plate is starting to look like a winner.
12:13 PM fragalot: you can buy pre-faced tooling plate too
12:14 PM CaptHindsight: https://www.shars.com/products/measuring/surface-plates/grade-b-9-x-12-black-granite-surface-plate
12:14 PM gregcnc: I had someone make a table for my mill in '08 maybe. 12x14 with 3 tslots in 1" mic6, was a steal at 350$
12:14 PM gloops: alls im saying its a waste of time getting a base thats flat to .00000 when your gantry is cock eyed to .1 and your rails arent parallel to within .1 etc
12:14 PM Rab: gloops, I hope that's millimeters
12:15 PM CaptHindsight: $40 https://www.shars.com/products/measuring/surface-plates/grade-b-12-x-18-black-granite-surface-plate
12:15 PM pink_vampire: Rab: just get 1'x1' and drill it on the cnc
12:15 PM CaptHindsight: drill and epoxy tapped holes wherever you wish
12:16 PM Rab: CaptHindsight, I've been thinking about granite surface plate for a router base.
12:16 PM gloops: well thats why people surface the spoil board with routers, at least youre working on a parallel plane to the travel, anywhere on the table
12:16 PM fragalot: you could just get some ATP-5 or K100-S tooling plate
12:17 PM Rab: I have some big linear motor stages, like 48"...would need a fair amount of mass to keep those planted.
12:17 PM fragalot: CaptHindsight: I'm so jealous of you guys in the USA finding surface plates (even low grade) for those ridiculous prices
12:18 PM fragalot: a tiny plate like that still goes for 150+ here
12:18 PM CaptHindsight: Rab: 2x3 surface plate is the base https://imagebin.ca/v/4HCxDgSmsztG
12:18 PM gloops: ive got approx 4x3 feet area, how much is it out? i dont know, how do you want me to measure it?
12:18 PM Rab: But the current project is a tiny, rigid router. 12x10 would be fine.
12:19 PM fragalot: feet? :D
12:19 PM Rab: CaptHindsight, hot!
12:19 PM CaptHindsight: Rab: yeah, Shars is a 2 hour round trip for me
12:19 PM CaptHindsight: I used to buy from Enco, they were even cheaper delivered
12:20 PM CaptHindsight: order by noon, truck arrives next day by noon
12:21 PM Rab: There's this thing, might be OK if it's well-supported and faced in the macine: https://www.ebay.com/itm/291544477343
12:21 PM gregcnc: https://store.hexagonmetrology.us/fixtures/fixture-plates-size-1-4-20/rayco-cast-aluminum-plate-12-x-x-12-y-x-50
12:21 PM Rab: +h
12:22 PM gloops: i got an ancient cast manhole cover, bout an inch thick, thought of getting it machined flat
12:22 PM gregcnc: arent' there many sources for aluminum t slot extrusion?
12:23 PM CaptHindsight: yes, but not flat out of the box
12:23 PM fragalot: you could also scour scrapyards for scrapped out machine tables
12:24 PM gloops: probably the best bet
12:24 PM fragalot: pretty sure the base on my 'new' drill press came from a similar source. https://photos.app.goo.gl/notpx6GggFM4iLHr8
12:24 PM pink_vampire: on the time you spent talk about it' the machine can face it flat for a router.
12:25 PM gloops: 12 inch yeah, just flatten some ally off, when youve found some ally
12:25 PM Rab: fragalot, wicked.
12:25 PM gloops: it will be as flat as your router can cut anyway
12:26 PM pink_vampire: it is not a surface plate, it is just the plate for a router, and even if you are going to use super grade plate, the router will be true to the the flatness of your rails
12:29 PM miss0r2: evenin'
12:29 PM gloops: this looks a bit bigger than 12x10 https://www.ebay.co.uk/itm/Cast-Iron-Machine-Bed-T-slot/263980418469?
12:29 PM miss0r2: probaly feet :)
12:30 PM CaptHindsight: 13 slots - 12ft by 5ft
12:31 PM fragalot: hi miss0r2
12:31 PM gloops: USA https://www.ebay.co.uk/itm/Cast-T-Slot-Machine-Bed-USED/172541293430?
12:31 PM miss0r2: fragalot: I'm just in here waiting for my ride. Having beer with the guys tonight :]
12:31 PM miss0r2: You up to anything interresting?
12:31 PM CaptHindsight: Item is guaranteed to not be DOA :)
12:33 PM miss0r2: ride is 7mins out
12:33 PM CaptHindsight: horse and wagon?
12:33 PM CaptHindsight: hoverboard?
12:34 PM miss0r2: regular car, I hope
12:34 PM miss0r2: But I do live in the countryside... so, theres realy no telling :P
12:34 PM fragalot: red cart
12:34 PM CaptHindsight: white princess carriage and 8 unicorns
12:35 PM fragalot: https://proxy.duckduckgo.com/iu/?u=http%3A%2F%2Fmcmmanufacturing.com%2F_product_images_%2Fvar%2Falbums%2FDirt-King-Cart-Tricycle-Photos%2FRedTrike-RedCart.png%3Fm%3D1312485159&f=1
12:35 PM miss0r2: Knowing these guys, Nothing could surprise me
12:36 PM fragalot: sounds like a cgallenge
12:36 PM fragalot: give me their number
12:36 PM miss0r2: fragalot: No.
12:36 PM miss0r2: Whatever you come up with - no matter how crazy, you can bet they will try to outdo it :D
12:36 PM miss0r2: I plan on seeing tomorrow
12:37 PM fragalot: You're no fun.
12:37 PM miss0r2: I realy am not
12:37 PM miss0r2: :]
12:38 PM miss0r2: 7mins my ass.. they drive like madmen. I have to run, see you around
12:38 PM fragalot: cya
12:40 PM CaptHindsight: 28 C Tuesday, today is 3C
12:41 PM CaptHindsight: it's true we really only get about 2 weeks each year of spring or fall
12:44 PM fragalot: you guys still get fall?
12:44 PM CaptHindsight: for an hour or so between temp swings
12:45 PM CaptHindsight: still coffee time here, switch to beer in an hour
12:52 PM gloops: https://www.ebay.co.uk/itm/2-Axis-machine-Sliding-Table/232954992984?
01:07 PM gloops: how to cast ally in the backyard https://www.facebook.com/erchuudcom/videos/1669976109812738/
02:15 PM CaptHindsight: looks like metal powder + binder with laser and galvo is cheap and simple enough, then you sinter in an electric kiln
02:18 PM CaptHindsight: the unused powder can be reused
02:26 PM CaptHindsight: and the same printer can be used to print sand molds for casting
02:28 PM CaptHindsight: https://www.youtube.com/watch?v=mxdWaxOoXs8&feature=youtu.be material hopper and bed that moves down after each layer
02:31 PM CaptHindsight: https://www.youtube.com/watch?v=3RzhHR8s2BA
04:08 PM Deejay: gn8
04:18 PM skunkworks: seems to peak out at 70c.. this laptop has some pretty good cooling
04:18 PM skunkworks: http://electronicsam.com/images/KandT/testing/primus/benchmark1.png
04:20 PM CaptHindsight: wonder what laptop is the lowest cost that runs LCNC over ethernet?
04:21 PM SpeedEvil: CaptHindsight: One with a smashed screen.
04:30 PM SpeedEvil: Stupid question. Are there things like braze-on carbide insert holders?
04:30 PM SpeedEvil: Rather than having to machine the complex geometry.
04:32 PM Tom_L: not that i'm aware of
04:32 PM Tom_L: they either come pre'brazed or with a screw for the insert
04:33 PM Tom_L: https://www.carbideanddiamondtooling.com/Indexable-Turning-Tool-Bits-AL-AR-BL-BR-E-4-6-8-10-12-16-14-38-12-58-34-1-Inch-Series-756
04:33 PM Tom_L: for example
04:36 PM andypugh: Well, sort-of
04:37 PM SpeedEvil: Yeah - what I mean is basically the absolute minimal insert holder, which you would braze on in place of a braze on bit of carbide.
04:37 PM SpeedEvil: I can sort of cope with machining a flat.
04:38 PM SpeedEvil: I can't cope with machining a insert holder
04:38 PM andypugh: https://www.cromwell.co.uk/shop/microbore-boring-systems/microbore-boring-systems/adjustable-cartridge-boring-system/f/26869
04:38 PM andypugh: Not really what you describe
04:39 PM SpeedEvil: yeah. It's a sort of bastard thing that doesn't have a good use in a proper shop.
04:39 PM andypugh: What’s so hard about machining a holder?
04:40 PM SpeedEvil: Lack of mill. Something I need to fix, admittedly.
04:40 PM andypugh: (Microbore cartridges are used in all sorts of custom tooling and for line-boring bars for engine bearing work)
04:41 PM andypugh: Ah, lack of mill is a problem.
04:41 PM andypugh: How sensitve are you? Here is what I have done in the past….
04:41 PM andypugh: Screw down an insert that you don’t want where you want it.
04:41 PM andypugh: Weld round it with MIG.
04:41 PM SpeedEvil: hah
04:41 PM andypugh: Remove the insert, screw in a good one.
04:43 PM andypugh: (In my limited experience of such bodgery, MIG doesn’t stick to carbide)
04:43 PM SpeedEvil: hammer would probably fix sticking.
04:54 PM jthornton: or a copper one as mig will not stick to it but it's hard to get a smooth finish
04:58 PM andypugh: To make sure you could whitewash the insert
04:58 PM andypugh: (they use “Tippex” on “Forged In Fire”
05:02 PM Tom_L: and i didn't think andypugh did anything ghetto...
05:03 PM jthornton: why is it so hard to find a good auto switch programmable thermostat? Everyone I look at has bad reviews
05:03 PM andypugh: Tom_L: Haven’t you noticed that my email address is “bodgesoc” ?
05:03 PM Tom_L: not really no
05:03 PM jthornton: unless of course it's a $300 wifi thermostat and what the heck do you need wifi for on a thermostat lol
05:04 PM andypugh: I used to _specialise_ in “field expedient” solutions to engineering problems, but then I got wealthy enough to buy and make proper tools.
05:04 PM Tom_L: jthornton, i had an old one that wasn't so bad but it's long since bit the dust
05:04 PM Tom_L: had week & weekend settings per day
05:04 PM jthornton: so has my old one, it worked perfect up to the day it died then I got this piece o crap one I have now
05:05 PM andypugh: jthornton: I am going to make a controller for my mum’s hous based on Pi 0W and a relay card. Interface would be a web page.
05:05 PM Tom_L: same here
05:05 PM jthornton: what's a Pi 0W?
05:05 PM andypugh: https://thepihut.com/products/raspberry-pi-zero-w?src=raspberrypi
05:06 PM jthornton: good idea for sure I can make it do what I want and not what some dumb butt thinks it should do lol
05:06 PM jthornton: a a zero, I have a few of those laying about
05:06 PM jthornton: what do you use to get the temperature into the RPi?
05:07 PM Tom_L: take the sensor from the old one :)
05:07 PM jthornton: rip the thermistor off something lol
05:08 PM Tom_L: PT junction isn't in the right range i don't think
05:08 PM Tom_L: i used one of those on my toaster oven
05:10 PM jthornton: hmmm I have a sack of I2C temperature probe things
05:10 PM Tom_L: lm75? i think is one
05:10 PM jthornton: https://store.ncd.io/product/screw-terminal-breakout-board-with-i2c-for-raspberry-zero-pi-2-and-3/
05:11 PM Tom_L: i had some of those wired to my webpage for a while
05:11 PM SpeedEvil: it's a bit silly the easiest way to get readings into the Pi is to use the camera and OCR
05:12 PM jthornton: I need to sort out why my 2.2" OLED is not seen on the I2C buss and use it for a temperature display
05:15 PM jthornton: I assume there is some way to get the local temperature without a weather station...
05:16 PM Tom_L: http://www.ti.com/lit/ds/symlink/lm75b.pdf
05:17 PM Tom_L: http://www.ti.com/product/LM75A
05:17 PM jthornton: https://www.amazon.com/gp/product/B01DQQPR2A I have a sack full of those
05:18 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/temp/LM75/lm75_msop1.jpg
05:18 PM jthornton: plus some on a chip
05:18 PM jthornton: that looks like fun
05:19 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/temp/LM75/lm75_soic2.jpg
05:19 PM Tom_L: those were a little bigger
05:19 PM Tom_L: crappy etch on some of those..
05:19 PM * jthornton puts on his chef hat and goes to do some sous chef work
05:20 PM Tom_L: used a parallel port to read them
05:20 PM jthornton: yea the second ones look doable for an old fart like me
05:21 PM * jthornton wanders up to the kitchen
05:21 PM Tom_L: probably have a pic of that somewhere..
05:24 PM CaptHindsight: what are the real time interfaces on the Rpi3? just SPI?
05:24 PM CaptHindsight: pretty sure ethernet is over usb
05:25 PM CaptHindsight: there are a few ARM boards with integrated NIC's
05:26 PM CaptHindsight: so LCNC over Ethernet works but then you need enough GPU cores to run the GUI
05:36 PM CaptHindsight: yah hafta build camotics from source for the Debian version used on the live CD?
05:44 PM CaptHindsight: no LCNC'sn is too old
05:44 PM CaptHindsight: LCNC's Debian
05:47 PM CaptHindsight: SpeedEvil: https://www.ebay.com/itm/ACER-CHROMEBOOK-C710-2847-AS-IS-CRACKED-SCREEN-GOOD-MOTHERBOARD/283199287331
05:47 PM CaptHindsight: $0.99
05:49 PM CaptHindsight: huh, same price for laptops without drives but good screens
05:49 PM SpeedEvil: yeah - 'not working' laptops may be similar
05:53 PM jthornton: I wonder if the pin spacing on the RPi zero is the same as the 50 pin on a Mesa card?
05:54 PM CaptHindsight: http://linuxgizmos.com/nanopi-neo4-sbc-breaks-rk3399-records-for-size-and-price/
05:54 PM CaptHindsight: integrated NIC
06:09 PM CaptHindsight: jthornton: 40 Pin (2 x 20 row) header with 0.1" (2.54mm) pitch
06:09 PM _unreal_: sup
06:09 PM CaptHindsight: so yeas
06:10 PM jthornton: cool, I can make the cable then thanks
06:10 PM _unreal_: hum... have not seen ziper in a few days..... though I have a log of him wanting to ask me a question
06:10 PM CaptHindsight: jthornton: https://www.modmypi.com/wire-solder-and-connectors-1141/zero-male-header-40-pin-2-x-20
06:11 PM CaptHindsight: seen zipper
06:11 PM CaptHindsight: woops
06:16 PM CaptHindsight: image2gcode generated a 120k line program for one color pass
06:17 PM pink_vampire: hsmworks!
06:18 PM CaptHindsight: hsmdontworks!
06:19 PM pink_vampire: it is work!!
06:19 PM andypugh: Yeah, HSMworks and Fusion/Inventor HSM is the best CAM I have found so far
06:20 PM CaptHindsight: well I have mastercam and NX but thats cheating
06:20 PM CaptHindsight: andypugh: I'm working on 5-axis CAM for CNC airbrush
06:21 PM andypugh: You do like chalenge, don’t you?
06:22 PM andypugh: ll
06:22 PM CaptHindsight: https://postimg.cc/67Csv2QJ just 3-axis here
06:22 PM XXCoder: 5 axis airbrush eh
06:22 PM XXCoder: airbrush a statue :)
06:23 PM CaptHindsight: will be useful for aerosol deposition onto 3d surfaces
06:23 PM XXCoder: indeed
06:25 PM CaptHindsight: voice coil servo motor driven nozzles
06:26 PM CaptHindsight: there's no CAM now for variable diameter tools
06:26 PM CaptHindsight: I can vary cone diameter and saturation (deposition density) on the fly
06:27 PM SpeedEvil: powdercoat would be fun
06:28 PM SpeedEvil: the hard part is sorting out the mixed powder waste into original pigments
06:30 PM CaptHindsight: UV powdercoat can be airbrush applied in <.5mm res
06:30 PM CaptHindsight: it melts at lower temps than usual powder coat
06:31 PM CaptHindsight: SpeedEvil: have done it in the past by applying a single base color and then laser sinter, then vacuum whats not sintered
06:32 PM CaptHindsight: then add next color, rinse repeat
06:32 PM CaptHindsight: final bake when done if needed
06:35 PM SpeedEvil: :)
06:35 PM CaptHindsight: https://www.pcimag.com/articles/85628-uv-curable-powder-coatings-benefits-and-performance
06:36 PM * SpeedEvil needs to get his photocatalyst ordered.
06:36 PM CaptHindsight: heh photoinitiators are on short supply recently
06:36 PM CaptHindsight: they created an artificial shortage
06:38 PM CaptHindsight: IGM spent the last few years buying up all the co's that make them and now "surprise" a shortage!
06:38 PM CaptHindsight: https://www.basf.com/en/company/news-and-media/news-releases/2016/08/p-16-286.html
06:39 PM SpeedEvil: sigh
06:40 PM CaptHindsight: I'm getting a batch in from China if you need some
06:41 PM SpeedEvil: unfortunately, it's not a near-term project.
06:41 PM SpeedEvil: My stack is too deep
06:42 PM CaptHindsight: let me know
06:50 PM SpeedEvil: Not for the forseeable future, alas.
06:50 PM SpeedEvil: Realistically.
06:50 PM SpeedEvil: Thanks.
06:51 PM jthornton: CaptHindsight: yea the header came with each zero
07:55 PM Jin^eLD is now known as Jin|away
08:48 PM Tom_L: what's the number of the newer mesa card with the daughter built on the main card?
08:48 PM Tom_L: ethernet
08:48 PM Tom_L: can't think of the number..
08:58 PM andypugh: 7i76E
09:00 PM Tom_L: i did find it finally thanks
09:00 PM Tom_L: i was thinking of the 7i96 i think
09:01 PM pink_vampire: why it have ethernet?
09:01 PM Tom_L: what's the one jt was making the config utility for?
09:01 PM Tom_L: why not?
09:02 PM andypugh: You don’t need a parport or PCI. Even the smallest PCs seem to still have Ethernet
09:02 PM Tom_L: skunkworks seems to be having good luck with his laptop too
09:03 PM pink_vampire: andypugh: what is the best card for fast servos?
09:04 PM skunkworks: they are sure great for testing
09:04 PM andypugh: Depends on the drives.
09:04 PM pink_vampire: 6 axis * 8192 PPR * 4000 rpm each motor
09:05 PM Tom_L: skunkworks what card are you using on that little mill?
09:05 PM andypugh: rene-dev: Does STMBL have significant limits?
09:05 PM skunkworks: Tom_L: 7i92
09:07 PM Tom_L: ahh ok... thanks
09:07 PM skunkworks: currently p!ugged directly into a leadshine stepper drive
09:08 PM skunkworks: done a lot of stuff with mesa ethernet now... no issues
09:10 PM Tom_L: using any other than test machines?
09:11 PM pink_vampire: what is more reliable the ethernet or the pci?
09:11 PM andypugh: In theory PCI
09:12 PM andypugh: But thay
09:12 PM andypugh: But that’s a different question.
09:12 PM pink_vampire: what do you mean?
09:12 PM andypugh: Actually, to be fair, that’s a different answer on my part
09:13 PM pink_vampire: I have dedicated full tower pc just for linux cnc
09:13 PM andypugh: For absolute speed I think I would use a PCI Mesa card and STMBL servo drives.
09:14 PM andypugh: But in practice the hardware is normally the problem
09:15 PM andypugh: And, furthermore, whilst I have a number of STMBL drives, they are not particularly well documented or available,
09:15 PM pink_vampire: what about the g320X
09:16 PM pink_vampire: or the clear path servos?
09:16 PM Tom_L: andypugh, how's he coming on the new part rev board?
09:18 PM andypugh: Tom_L: No idea :)
09:19 PM andypugh: pink_vampire: In this video the A axis is STMBL and the XYZ are 8i20 and software. https://www.youtube.com/watch?v=sBm7T7HgzTk
09:20 PM andypugh: They all work. So why do you want something extra special?
09:23 PM pink_vampire: now I'm ith the lpt, and the servos are working in 400 ppr for x and y, and 800ppr for the Z axis and 100 ppr for C.
09:23 PM pink_vampire: with*
09:25 PM pink_vampire: and the problem is the machine is veeeery slow for the high speed spindle, each servo can go up to 4000 rpm, but the lpt can't work at those speeds, so i'm thinking about upgrade to FPGA card
09:25 PM pink_vampire: andypugh: ^
09:26 PM andypugh: Any (any) other interface will knock the LPT into a cocked hat
09:28 PM Tom_L: heh
09:28 PM andypugh: (or you can change the gearing anf sacrifice accuracy)
09:28 PM pink_vampire: but if i going to spent the time and money to get something like FPGA card I want the best
09:29 PM andypugh: Things move. I spent more on Mesa cards for my current lathe then I spent on my first lathe.
09:29 PM pink_vampire: I LOVE that video, the engraving part https://youtu.be/XZHsDMJKJuk?t=1327
09:29 PM XXCoder: yeah that was great
09:31 PM andypugh: The fun part of that engraving, it’s all hand-coded G-code
09:31 PM andypugh: (about 200 lines and scalable)
09:31 PM pink_vampire: WOW
09:33 PM andypugh: It’s all here: https://forum.linuxcnc.org/20-g-code/27169-g-code-to-engrave-numbers-on-cylinders#40497
09:35 PM Tom_L: how long did it take to figure that out?
09:35 PM XXCoder: fancy
09:36 PM XXCoder: 9 axises??
09:36 PM andypugh: Tom_L: It was an evening. The idea was instant, the exectuion tedious.
09:37 PM pink_vampire: andypugh: you are my G-code hero
09:56 PM pink_vampire: what do you think about my design https://i.imgur.com/kBonL5E.png
09:57 PM pink_vampire: XXCoder: Tom_L ^
09:57 PM XXCoder: looking
09:57 PM XXCoder: lighting system?
09:57 PM pink_vampire: yeah
09:58 PM XXCoder: looks cool. for machine or somewhere else?
09:58 PM pink_vampire: no.. for a fish tank
09:58 PM XXCoder: nice
10:00 PM andypugh: Pretty, It’s fun what twiddles yiu can add when it is CAD and Plasme. Reminds me of Victorian cast iron where detail was free
10:01 PM pink_vampire: I love the skeleton look
10:01 PM XXCoder: heh so much details back then
10:01 PM XXCoder: huge work
10:05 PM pink_vampire: andypugh: did you saw the soldering iron tip that i made? https://i.imgur.com/FNnf8V2.png the old one https://i.imgur.com/g01hfXv.png old vs new https://i.imgur.com/JxwYedl.png
10:05 PM andypugh: I took a picture of the watch I never wear last night (came up in conversation) Fairly skeletal: https://photos.app.goo.gl/CXfVYQZc21syetdA9
10:06 PM andypugh: pink_vampire: Does it work?
10:06 PM pink_vampire: niiiiiiiiiice
10:06 PM pink_vampire: sure https://i.imgur.com/KAQ70iN.png
10:06 PM XXCoder: amazing artwork
10:07 PM andypugh: I have a vague feeling that soldering “irons” are iron-plated copper. What did you use?
10:07 PM pink_vampire: i think it was silver steel
10:07 PM pink_vampire: very very hard shell, and softer on the inside
10:08 PM andypugh: It does seem to have tinned and is eorking.
10:09 PM pink_vampire: i dis very fine work with that tip
10:12 PM pink_vampire: i want to get quick change tool post for my lathe
10:15 PM andypugh: http://www.createtool.com/list.asp?cid=33
10:16 PM andypugh: pink_vampire: The only hard part is chooing the size
10:16 PM XXCoder: "belive that we belive" :P
10:17 PM pink_vampire: how do i know?
10:17 PM andypugh: Genuoine multifix would be better, but I think they went out of business. Create claim to fit the jigs.
10:18 PM andypugh: Of course, a set from them ought to just work.
10:18 PM pink_vampire: how do i determent what it the best size for my lathe?
10:20 PM andypugh: Table here
10:20 PM andypugh: http://www.lathes.co.uk/multifix/
10:21 PM pink_vampire: they look huge
10:22 PM andypugh: How big is your lathe? eBay has some cute tiny ones. but Original Multifix was for real lathes
10:23 PM pink_vampire: i have emco
10:23 PM andypugh: Centre height>
10:23 PM andypugh: ?
10:24 PM pink_vampire: one sec i will take a picture
10:34 PM pink_vampire: https://i.imgur.com/uoo1lqb.png
10:35 PM pink_vampire: andypugh: https://i.imgur.com/ymso3Ql.png
10:36 PM pink_vampire: what size do you think?
10:38 PM andypugh: These exist, but look harder than I did: https://www.ebay.co.uk/itm/smallest-Quick-Change-Tool-Post-of-the-world-system-Multifix-You-must-see/152123879598?hash=item236b4a30ae:g:xZwAAOSw-7RVCkNQ:rk:1:pf:0
10:39 PM pink_vampire: i think 1/4" is too small
10:40 PM pink_vampire: I like the 1/2" and 3/8" tools
10:41 PM andypugh: I gave you the tools, do your own research on the right size. Then you can’t blame me :-)
10:42 PM pink_vampire: the Multifix look nice but each holder is very expensive
10:43 PM andypugh: Yes.
10:43 PM andypugh: And?
10:44 PM pink_vampire: i think he dovetail style will be more cost effective
10:44 PM andypugh: (a set of 4 is probably enough, then look for eBay bargaind)
10:45 PM pink_vampire: i have alooooooooooot of tools that i got with the machine
10:46 PM pink_vampire: so u want to try fit as much as i can in tool holders with the height already set
10:46 PM andypugh: I have used the MF at odd angles many times and used my “throwaway:” tool (10) for the touch-off.
10:47 PM andypugh: Can’t do that with a dovetail if you want T1 to still be right
10:48 PM pink_vampire: i guess you right
10:52 PM andypugh: It’s up to you. I have been where you are and bought the cheap option, then sold the whole machine and moved on.
10:53 PM pink_vampire: I have tools like that https://i.imgur.com/be6aEoq.png
10:53 PM pink_vampire: I have no idea how to even hold them in the tool post
10:53 PM andypugh: But that is because, for me, it;s what I could make rather than what I actually make. If you are less wierd, then make your own choices.
10:55 PM andypugh: pink_vampire: Lots of knurling tools. My advice? ignore or sell them.
10:56 PM andypugh: The tap wrenches are good, though,
10:56 PM pink_vampire: i'm asking out of curiosity, how they even connect to the lathe
10:57 PM andypugh: They just fit into the toolpost like any tool.
10:58 PM pink_vampire: but some of them are about 1" - 3/4" X less then 3/8" thick
10:59 PM andypugh: Yes, that would work in some lathes
11:00 PM andypugh: ANyway, I really need to be asleep
11:00 PM pink_vampire: they look almost like a shaper tools
11:04 PM gloops: the knurling tools are ok for some things, like if you need grip on something
11:04 PM pink_vampire: i know, but how I can hold them...
11:06 PM gloops: ahh, wont fit the tool holder
11:07 PM pink_vampire: yeah... this is the problem..
11:08 PM gloops: well, you design something to fit in the tool holder to hang over the side with a lower tool height
11:08 PM gloops: *could design
11:08 PM gloops: probably get some vibration though
11:09 PM pink_vampire: andypugh was right, you get a good set, and you dont with it
11:10 PM gloops: probably wont use that many tools in a lathe anyway
11:10 PM gloops: i make do with a few bits of hss for most things
11:11 PM pink_vampire: this is what i'm doing now
11:11 PM pink_vampire: and i'm not happy about it
11:11 PM gloops: other alternative is grind the bottom on the tools down, the ones that are too big
11:15 PM pink_vampire: maybe
11:17 PM gloops: this is the emco right? whats the max tool thickness, 10mm? 3/8ths or something
11:17 PM pink_vampire: on the tool post?
11:17 PM gloops: yeah, whats the biggest tool that fits
11:18 PM pink_vampire: let me see
11:19 PM pink_vampire: H13.7 W10~ L54.9
11:20 PM gloops: 13mm you can get insert tooling that height, might be as well buying a dedicated set that you want, and sell the old stuff, might be surprised how much it fetches
11:21 PM pink_vampire: true
11:22 PM gloops: ive got some great large industrial tooling for lathe, way too big to fit mine, i look through them from time to time and ponder adapting them, but never have, and never will lol
11:27 PM pink_vampire: i need to get some sleep
11:35 PM gloops: i went to bed real early, and now im up real early
11:35 PM gloops: which didnt really gain me anything