#linuxcnc Logs
Mar 13 2019
#linuxcnc Calendar
12:01 AM Wolf__: but… probably only bidding on dull stuff, scissor lift and tele handler, for building new shop
12:15 AM Elmo40: i need a scissor lift
12:15 AM Elmo40: they keep going for way too much at auctions
12:21 AM MarcelineVQ: they tend to need a lot of maintenance as well, or there's a lack of luck around here
12:21 AM MarcelineVQ: *in my area
12:22 AM Wolf__: this auction seems most are at 1k-2k right now, still just under 2 days left tho
12:22 AM Wolf__: one is at $30
12:33 AM Elmo40: $30 or $30,000?
12:36 AM Wolf__: $30.00
12:37 AM Wolf__: but who knows what the current max bid is on it
12:40 AM Elmo40: $45.00
12:40 AM Elmo40: ;-)
12:41 AM Wolf__: I’ll find out soon lol
02:21 AM gloops: still very cheap https://www.ebay.co.uk/itm/Viceroy-Miller-Milling-Machine/173824592545?
02:43 AM Loetmichel: gloops: the delivery from nottingham could be a problem though ;)
02:43 AM gloops: not so bad for me - but i dont have the space lol
03:18 AM Deejay: moin
04:41 AM jthornton: morning
04:42 AM XXCoder: yo
05:11 AM jthornton: chicken door opens later and later each day... almost 12hrs of daylight now
05:12 AM XXCoder: someday it will be 25 hours of daylight ;)
05:12 AM XXCoder: nice tho
05:17 AM jthornton: max light is 14 hours a day for added light, when natural light reaches 14 hours then the lights come on at dawn
05:18 AM XXCoder: yeah was kidding, 25 hours of sun in 24 hour day is impossible :)
05:19 AM jthornton: yea you would have to move to a planet with a longer orbit lol
05:21 AM XXCoder: nah slower rotation
05:26 AM pink_vampire: https://www.youtube.com/watch?v=rpHYBz7ToII
05:28 AM XXCoder: interesting
05:41 AM weenerdog: goood mawnin
05:41 AM pink_vampire: hi weenerdog
05:45 AM weenerdog: howdy
05:46 AM Tom_itx: morning
05:54 AM XXCoder: SpeedEvil: remember that video? https://www.ebay.com/itm/264236625663
05:54 AM XXCoder: $405???
05:54 AM XXCoder: whoa
05:55 AM pink_vampire: small flat screwdriver
05:55 AM XXCoder: item for sale isnt that tiny spade thing
05:56 AM XXCoder: its the oiler thing the container
05:56 AM XXCoder: it has 2 oil types and tip cleaner
05:56 AM XXCoder: think it comes with spade thing too also
05:56 AM pink_vampire: https://www.harborfreight.com/6-in-bench-grinder-with-gooseneck-lamp-61748.html
05:56 AM pink_vampire: how bad this thing is?
05:56 AM jthornton: morning
05:57 AM XXCoder: no idea, but its just motor with attachements, how badly could they flip it up?
05:59 AM weenerdog: harbor freight electric stuff is a crap shoot. some of it is trash. but i gotta say, my hf dildonic oscillating spindle sander is a good one.
06:00 AM pink_vampire: i want it for stuff like making cutters
06:01 AM jthornton: https://www.harborfreight.com/14-in-oscillating-spindle-sander-69257.html
06:01 AM jthornton: weenerdog: that one?
06:01 AM weenerdog: yaya
06:02 AM pink_vampire: i like the fact that it take very small table space
06:02 AM weenerdog: i'd buy it again
06:02 AM weenerdog: (and since its hf, prolly will) 8)
06:02 AM jthornton: I managed to get the backhoe battery in, unload the logs from the trailer, spot the trailer at my buddies house for more logs, clean up and put away all the wood working stuff and get the truck in the shop before it started to rain yesterday
06:03 AM weenerdog: spiffy. hope its that actuator doodad
06:03 AM jthornton: I need a oscillating spindle sander
06:03 AM XXCoder: i need an entire shop lol
06:03 AM weenerdog: everyone does. whether they know it or not.
06:03 AM jthornton: yea easy to test just take it out and press the button
06:06 AM weenerdog: pink, i'd say take a chance on the grinder. use it a lot during the 90 day warranty and see if it dies.
06:06 AM XXCoder: yeah grind up few stuff
06:06 AM XXCoder: be rough
06:06 AM XXCoder: wear breathing mask
06:06 AM XXCoder: because its dust time!
06:07 AM weenerdog: drive it like ya stole it - dale earnhardt sr.
06:09 AM weenerdog: dust shmust. weenfucius say "breath and become one with your work."
06:09 AM pink_vampire: i want to use CBN wheel
06:11 AM XXCoder: https://www.youtube.com/watch?v=bgEfL08KDM8
06:12 AM XXCoder: man I love his flip down table cnc router
06:12 AM MarcelineVQ: pink_vampire: mind that the little sheemetal tabs they provide to work off of are pretty useless, if you want to be grinding cutters you'll probably want to replace those since they vibrate. which will probably mean replacing the guards entirely since they are attached to them and it's all flimsy sheetmetal
06:15 AM weenerdog: that is cool, xx. 3.5 axis? i wonder if he can index the tilt at al.
06:16 AM XXCoder: i dont think it can do other angles but easy enough to add similiar system as sine block.
06:17 AM XXCoder: that is, it has 2 rollers and guy can use defined lengths of wood planks to set angle
06:17 AM pink_vampire: XXCoder: you are become a wood worker O_O
06:17 AM XXCoder: my home shop is to be wood cnc shop more or less. at work im all alum and harder metals.
06:17 AM weenerdog: when i build my build i'm thinking about adding enough z travel to be able to nail on a 4th axis later.
06:18 AM weenerdog: but i like that flip top deal.
06:18 AM XXCoder: yeah
06:18 AM XXCoder: me dunno
06:19 AM XXCoder: i would start off with small wood stuff and small amunt of alum
06:22 AM weenerdog: i'm going ahead and building a 4'x4' first and building it so i can work a whole 4x8 sheet in halfs
06:27 AM jthornton: that's how I built my plasma I can slide a 4x8 sheet under the top rails and cut out up to 3x5
06:29 AM pink_vampire: someone know how to make a selector switch with one button?
06:29 AM pink_vampire: so you press long press then have a selection
06:33 AM pink_vampire: https://www.youtube.com/watch?v=TwM1sp2IXYI
07:38 AM jthornton: geez it's going to be 70°F today an tomorrow
07:38 AM weenerdog: nice
07:38 AM weenerdog: it snowed 4" friday, was 62 sunday here
07:40 AM jthornton: looks like more rain here this afternoon and tonight... maybe friday I can get back out to the woods and cut more trees down
07:40 AM weenerdog: you clearing it, or just stocking up firewood?
07:43 AM jthornton: both, clearing shooting lanes for my buddy and stocking up on firewood a win win for both of us
07:43 AM jthornton: mostly 8-12" diameter hickory so easy to handle 6' logs
07:44 AM weenerdog: i cheated last year. i sold a long right of way to a guy and a friend of mine did the clearing and grading. so two tandem loads of oak and maple logs landed in my wood yard :)
07:44 AM jthornton: just got a jumbo egg :)
07:44 AM jthornton: nice
07:44 AM jthornton: big logs?
07:44 AM weenerdog: i just lift them up on the forks on the tractor and slice them like bread.
07:45 AM weenerdog: some of them. most are @ 12-18"
07:45 AM jthornton: http://gnipsel.com/images/equipment-shed/logs.jpg
07:45 AM pcw_home: pink_vampire: you could probably cobble something together with the oneshot and flipflop components
07:45 AM weenerdog: thats a good pile
07:45 AM jthornton: that's the logs I got from clearing out for the new shop
07:46 AM jthornton: yea all gone now, buddy with a saw mill cut a few of the nice white oak for boards rest went to firewood
07:47 AM jthornton: I think he cut some of the red oak too
07:48 AM weenerdog: another friend of mine is taking down a humongous locust thats on top of his shop. its like 30" a foot above the base. i'm borrowing my cousin's 35 ton portable flip up splitter and getting it. i have a friend who is very poor, but good to work. we usually work together and split the wood on deals like that. win/win
07:48 AM weenerdog: haul him a load, me a load, him a load, me a load til its gone
07:56 AM pink_vampire: pcw_home: it is a neopixels project that i try to control
08:01 AM pcw_home: Silly me, I assumed it was LinuxCNC related...
09:33 AM gregcnc: looks like it could be retuned https://www.instagram.com/p/ButhaZnAJCF/
09:48 AM pink_vampire: cute!!
09:49 AM pink_vampire: paint it pink and give it to me
10:01 AM JT-Shop2: weenerdog: bad actuator
10:02 AM weenerdog: sweeeeeeeeeeeeeeet
10:03 AM weenerdog: the mechanic would have changed it and charged you hundreds for "changing the transfer case shift motor" :)
10:03 AM weenerdog: whats the actuator cost? @ $50?
10:04 AM JT-Shop: looking
10:04 AM weenerdog: ewww dorman is $119
10:06 AM weenerdog: i had crap luck with the dormans on mine, but just because salt eats the rubber diaphram. since yours is electric i would think it would be fine. i replaced the dormans once a year, then got an ac delco out of a junkyard and its still going years later :)
10:10 AM JT-Shop: oriley has one for $80
10:10 AM cradek: now's a good time to replace it with one of the vacuum operated jeep ones
10:10 AM weenerdog: that aint so bad
10:10 AM weenerdog: lol
10:10 AM weenerdog: yeah convert it to vacuum
10:11 AM JT-Shop: I think 15 minutes to change one is less than converting it to vacuum :)
10:13 AM weenerdog: with an arduino, you could go from the dash button to usb to ethernet to another arduino on a small hydraulic pump, from there a servo actuated vacuum switch hooked to a relay, then to the electrical actuator
10:13 AM weenerdog: that would be the simplest way
10:14 AM cradek: no you need to use a cell phone somehow
10:14 AM cradek: to make it simpler
10:14 AM gregcnc: there's an app for that
10:14 AM JT-Shop: I follow that logic but you need a tablet in there somewhere to monitor the action
10:15 AM methods_: oh that's just wasteful
10:15 AM gregcnc: while your at it make a fully produced YT video, and include some evaporust action
10:15 AM methods_: you need to use an old upcycled laptop monitor
10:15 AM cradek: vacuum switching controls in cars were the touch screens of the 70s
10:24 AM cradek: or earlier I guess... I drove a 52 for a while, and it only had a windshield wiper when going downhill
12:05 PM jdh: damn you are old
12:12 PM pink_vampire: 28 AWG amps?
12:16 PM -!- #linuxcnc mode set to +v by ChanServ
12:36 PM fragalot: 'sup
12:37 PM fragalot: miss0r: I just got that MMS as an SMS with an URL in it, stating I had 30 days to download & view it, lol
12:51 PM -!- #linuxcnc mode set to +v by ChanServ
12:51 PM gloops: £6 milling machine https://www.ebay.co.uk/itm/Watchmakers-Milling-Machine-Clockmakers-Tool-Hauser/223443295831?
12:52 PM fragalot: not sure what that is, btut hat is not a milling machine
12:52 PM fragalot: and stop posting prices for things that still have a week left on ebay :D
12:53 PM gloops: 4 days, they might have bidded out already
12:54 PM Jymmm: gloops: Final 60 seconds snip bidding
12:54 PM Jymmm: snipe*
12:54 PM gloops: i cant work out what it does either
12:55 PM Jymmm: Looks like a dril press of sorts
12:55 PM gloops: or what it could do
12:56 PM gloops: relatively big work surface - that it cannot reach
12:56 PM fragalot: t can probably only do one thing, but will do that one specific thing very well
12:56 PM fragalot: :P
12:56 PM SpeedEvil: Jymmm: 6
12:56 PM Jymmm: SpeedEvil: ?
12:57 PM SpeedEvil: Jymmm: you do not want to use 60s, because idiots may reconsider their 'max' bid and reenter a new one
12:57 PM gloops: yeah Jymmm iv got it down to last 5-10 seconds manually
12:57 PM Jymmm: SpeedEvil: ah
12:57 PM Jymmm: gloops: I have too =)
01:00 PM fragalot: i'd greatly prefer it if you guys stuck to 60s
01:00 PM fragalot: thanks
01:09 PM roycroft: does that mean we all should be wearing bell bottoms and nehru shirts and protesting the war, fragalot? :)
01:09 PM fragalot: roycroft: if that rocks your boat
01:09 PM fragalot: keeps you from snapping things up on ebay too, so go for it :D
01:13 PM roycroft: blah
01:13 PM roycroft: my order for glass platen liners got cancelled
01:13 PM roycroft: the seller said "unqualified buyer"
01:14 PM fragalot: o.O
01:14 PM roycroft: how am i unqualified?
01:14 PM roycroft: i have close to 1000 feedbacks, 100% positive
01:14 PM roycroft: now i have to order from cyprus instead of the usa
01:15 PM -!- #linuxcnc mode set to +v by ChanServ
01:15 PM roycroft: so much for trying to buy things domestically
01:17 PM roycroft: because there are exactly two ebay sellers of those items: one from montana and one from cyprus
01:17 PM fragalot: and they both buy them frlom the same supplier in russia
01:17 PM Rab: roycroft, does the seller have their own website you could order from?
01:17 PM roycroft: not to my knowledge
01:18 PM roycroft: i would not want to order from that seller anyway, after having cancelled my first order for no good reason
01:18 PM roycroft: i just verified that there are no shipping restrictions - the seller uses usps, so it's not a problem of lack of physical address
01:18 PM roycroft: and the listing/shipping info says nothing about not delivering to post office boxes
01:19 PM fragalot: they're probably just out of stock
01:19 PM roycroft: then they should have said so
01:19 PM roycroft: i'd be fine with that
01:19 PM roycroft: but the reason was "unqualified buyer"
01:19 PM fragalot: yea but that'd look bad for their statistics
01:19 PM roycroft: i just ordered from cyprus
01:20 PM roycroft: that boat takes a long time to get here, so i had better get it on its way quickly
01:20 PM roycroft: fortunately it will be a while before i build my platen
01:21 PM roycroft: i'll likely not be ready for the liners before they arrive (i'm actually going to make two platens - one general purpose, and one for grinding plane blades/chisels)
01:22 PM roycroft: the montana seller has been on ebay since 2003, but only has 145 feedbacks
01:22 PM roycroft: 100% positive
01:22 PM roycroft: that's relatively few for having been a member for 15+ years
01:23 PM jdh: I hate selling stuff
01:23 PM fragalot: same
01:23 PM roycroft: it's a pain in the butt
01:23 PM roycroft: but collecting the money is nice
01:23 PM fragalot: try giving something away for free - that's even worse
01:23 PM roycroft: and having the stuff go away to free up space is nice
01:24 PM roycroft: i have a bunch of stuff piled up that i need to sell
01:24 PM roycroft: i need to just do it
01:25 PM roycroft: but it's such a hassle it's easy for me to just wait until i have a few more things to sell before getting around to it
01:25 PM roycroft: and then i add a few more things to the pile
01:25 PM roycroft: and wait again until there are a few more things
01:26 PM fragalot: hehe
01:26 PM roycroft: so i see folks add little ledges to the bottom of their platens all the time to support the glass liner, in case the adhesive fails
01:26 PM roycroft: but i've never seen anyone add a ledge at the top as well
01:26 PM roycroft: belt grinders are reversable
01:27 PM roycroft: and i'm sure i'll want to run mine backwards at times
01:27 PM roycroft: it would seem to me that a ledge at both ends would be prudent
01:29 PM roycroft: i was going to use hardened tool steel for my platen, but the glass liners stay a lot cooler, and i thought that would be a useful feature when i'm doing heavy grinding
01:32 PM fragalot: why not 3D print the platen to have internal cooling channels, optimized for even cooling
01:34 PM -!- #linuxcnc mode set to +v by ChanServ
01:42 PM andypugh: I think I can see what this does, but I am not sure why it does it.. https://www.ebay.co.uk/itm/112524793760
01:46 PM -!- #linuxcnc mode set to +v by ChanServ
01:55 PM methods_: i don't get it either
01:55 PM gregcnc: weird rollers used instead of a whirly
01:56 PM andypugh: I think it is meant for centreless grinding.
01:56 PM gregcnc: yes
01:56 PM methods_: is the blade thing a wheel dresser or something?
01:57 PM methods_: oh no it's to stabilize under the work piece
01:57 PM methods_: interesting
01:57 PM andypugh: It’s a lot of parts for the money.
01:58 PM gregcnc: https://www.youtube.com/watch?v=xu5zuYv3_iM
01:58 PM methods_: probably not a bad thing to have around for just doing a quick grind on something on the regular grinder
01:59 PM methods_: oh fancy that one is motorized
01:59 PM gregcnc: extra 3.50 probably
01:59 PM methods_: lol
02:01 PM methods_: hmm for $100 not too bad for quick little grind job
02:01 PM Papagno: Hi at all. i have a problem on real machine and sim machine on master , with exsternal offset. if impose in ini file OFFSET_AV_RATIO = 0.5 and have in ini file max_velocity = 2 and run a g0 x0 cooamnd , the axis run at g0 at 60 mm/min , when normally it run 120 mm/min with value 2 in max_velocity . the g0 velocity change , if change OFFSET_AV_RATIO value. because ?
02:02 PM gregcnc: no collets, low height, must have some use, is this a copied thing or did they actually come up with something?
02:02 PM Papagno: For sim , test axis/sim/external_offset/jwp_z.ini
02:02 PM methods_: little more than $3.50 for the motors
02:02 PM methods_: https://www.ebay.com/itm/Gromax-110v-Motor-Punch-Grinder-PGM-Made-in-Taiwan/121099456728?hash=item1c321710d8:g:VnkAAOSwPc9W0~88
02:03 PM gregcnc: Gromax is a real distributor though
02:04 PM gregcnc: eh, even from china they are 521USD
02:05 PM methods_: i wouldn't mind getting one just for dressing down tooling for clearance or whatever
02:05 PM gregcnc: Amazon is a strange place. Why do they occasionally have tooling for nearly free?
02:06 PM methods_: one of the wonders of the world
02:07 PM gregcnc: I bought a Sandvik holder and inserts yesterday for something like 80% off.
02:07 PM methods_: score
02:08 PM methods_: i scored an 1-1/4" 880 corodrill 6xd for $145 the other day
02:08 PM gregcnc: yeah, nice
02:08 PM methods_: normally like $900+
02:08 PM andypugh: Papagno: I don’t full understand the question, but I think what you are seeing is that AV_RATIO leaves half of the max velocity and accel available for the external offset.
02:09 PM andypugh: So the axis runs at half speed when there is no offset change
02:09 PM methods_: i'm sure it was stole at that price lol
02:09 PM methods_: i just keep a sandvik 880 alert on ebay at all times for stuff like that
02:09 PM gregcnc: but these are coming directly from Amazon/Sandvik
02:10 PM methods_: they might be clearing that tooling out then
02:10 PM Papagno: the g0 run at half the vaule in max_velocity value. but i don't have able exsternal offset.
02:10 PM Papagno: this is normal in actual master ?
02:10 PM gregcnc: I think it's some try amazon deal. Hardinge and Guhring doesn't list much anymore
02:11 PM andypugh: I don’t know for sure. You might get a better answer on the Forum, as that is a more likely place to find Dewey (who added external offsets)
02:11 PM andypugh: Punch-grinder in action: https://www.youtube.com/watch?v=goLwpk1ZL-g
02:12 PM Papagno: ok athnks
02:12 PM methods_: https://www.ebay.com/itm/Sandvik-Drill-880-D3800L40-03/153399418693?hash=item23b7515f45:g:fTsAAOSw44BYHb4C
02:14 PM methods_: i was gettin scared watchin him drop that wheel down right on the work piece lol
02:14 PM methods_: at about 2:09 lol
03:15 PM Tom_itx: JT-Shop, most of Kansas should anticipate wind gusts of at least 60 mph. Later this evening and tonight, peak wind gusts could exceed 70 mph
03:16 PM jelly is now known as jellytoo
03:16 PM Wolf__: gregcnc: deep clearance pricing is normal on amazon, guess after stuff sits in their warehouse for x time they start dropping price to get it to move, I have picked up several odd things for 80% off or less direct from amazon
03:17 PM jellytoo is now known as jelly
03:19 PM jelly is now known as jellytoo
03:19 PM jellytoo is now known as jelly
03:25 PM gloops: that cuts pretty well lol https://ibb.co/th0RgxG
03:26 PM gloops: not much chance of getting a 30 degree V bit long enough though
03:26 PM XXCoder: that looks like a renderng?
03:26 PM XXCoder: oh
03:26 PM XXCoder: custom order heh
03:26 PM gloops: thats the simulated cut
03:28 PM gloops: that the toolpath https://imgbb.com/upload (not an order just playing, i might run it at the weekend - very small)
03:28 PM XXCoder: "you are using outdated browser"
03:28 PM XXCoder: lol gonna love that
03:29 PM XXCoder: thats upload page.
03:29 PM gloops: oh yeah
03:29 PM gloops: https://ibb.co/YpWssHR
03:29 PM XXCoder: looks like 3 detail increasing layers
03:29 PM XXCoder: pretty long cut
03:30 PM gloops: 6mm endmill, 2mm ballnose, 30 degree v bit
03:30 PM gloops: actually looks ok without the v bit
03:30 PM gloops: XXCoder how did you know it was 3 cuts?
03:31 PM XXCoder: voodoo
03:31 PM XXCoder: its skull after all.
03:31 PM XXCoder: heh nah could see layers
03:32 PM gloops: its too long to be of any practical use
03:32 PM gloops: things like that are ok if its to make a mold or something, like once
03:33 PM XXCoder: yeah
03:33 PM XXCoder: or maybe 2 if you want say bookends for example
03:33 PM gloops: so i cut that, polish it up by hand, take a silicone mold - cast with low temp alloy, bingo
03:33 PM XXCoder: if small ones, picture frame corners lol
03:34 PM gloops: lol, have to say i can think of lots of things that should have skulls scattered around on them
03:35 PM XXCoder: lol
03:35 PM andypugh: If you want skulls it’s easir to just dig them up.
03:36 PM andypugh: Illegal, but easier.
03:36 PM gloops: i dont like being in the graveyard when its dark andypugh
03:36 PM gloops: not round here, id get mugged, or worse
03:36 PM andypugh: More subterfuge is needed if doing it during the say.
03:37 PM andypugh: And it would need to be a pretty strange mugger to hang about in a graveyard at night just in case someone rich and lacking in self confidence might come by.
03:39 PM XXCoder: SpeedEvil: now public https://www.youtube.com/watch?v=KhYIsbfSbxw
03:39 PM gloops: probably better to be confident and do it in the day, just dress up like a gravedigger and go and dig some up
03:40 PM SpeedEvil: :)
03:40 PM XXCoder: item is now on ebay if you can afford it lol
03:41 PM SpeedEvil: I have enough cash that I could probably buy it, which is not quite the same thing
03:41 PM gloops: i had a walk round a cemetry in doncaster one sunday, some dodgy characters hanging around in there, also found a small copper stripping factory in the trees lol
03:41 PM gloops: (copper wire)
03:46 PM fragalot: that no deal vote was about as close as the referendum, lol
03:46 PM gloops: the first ammendment was closer - 4 votes, 2 people
03:47 PM fragalot: I only saw 4 votes, must have been that amendment then
03:47 PM fragalot: didn't really follow in detail what amendments there were
03:47 PM gloops: that was an ammendment to take no deal away for ever
03:48 PM gloops: as opposed to taking it away up to march 29
03:48 PM fragalot: probably so close because it's choosing between shooting yourself in the left foot, or the right foot
03:48 PM fragalot: i terms of bargaining chips
03:48 PM SpeedEvil: fragalot: yeah.
03:48 PM SpeedEvil: fragalot: for some reason 'put down the damn gun' isn't on the table.
03:49 PM gloops: May is relentless, she is bullying the ERG/DUP to vote for her deal
03:49 PM fragalot: SpeedEvil: at least "move the gun a little further away" is, lol
03:50 PM gloops: no deal off the table, vote on extension tommorrow (parliament will vote for an extension) the EU wont give an extension unless for another referendum
03:50 PM gloops: ERG are well and truly in the corner
03:51 PM fragalot: the EU can only give an extension if all 27 member states agree on it
03:51 PM fragalot: so whilst not impossible.. it won't be easy to convince them all
03:51 PM gloops: true, and just maybe some of Farages friends can fix things there - Italy may veto an extension
03:52 PM gloops: but i doubt it
03:52 PM gloops: they do what merkel and macron says
03:59 PM fragalot: gloops: for all you know the UK will veto itself in that vote :P
04:00 PM gregcnc: a fixer upper https://goo.gl/SE6GNn
04:00 PM fragalot: gregcnc: worth it just for the accessoires
04:01 PM gloops: 100 dollars
04:01 PM fragalot: ha I misread.
04:02 PM gloops: you can buy a pair of linear rails for that
04:02 PM gloops: cant
04:03 PM Rab: wow
04:04 PM Rab: Support Our Troops magnet included, presumably?
04:05 PM gregcnc: that's a "you pay to remove my scrap metal price"
04:06 PM fragalot: gregcnc: because offering it for free brings in the nutters
04:06 PM fragalot: asking $100 gives people a chance to bargain it down to $80 and feel good about themselves
04:09 PM gloops: id have it for 100, id whip all that wire off it and stick some longs steppers in
04:09 PM fragalot: i'd just resolder the Z axis driver board & fix any shitstains on it
04:10 PM andypugh: Just put a 7i77 on it.
04:10 PM Rab: 6,500 lbs
04:10 PM andypugh: (Unless the drives are dead)
04:10 PM fragalot: that too, assuming the drivers can be retro-wired
04:10 PM fragalot: some mistubishi lathes i've worked on had the drivers as part of the motherboard,.. no going around re-using them there
04:11 PM gregcnc: unfortunately, I don't have space
04:11 PM fragalot: lame excuse. :D
04:12 PM Wolf__: 10 hrs closer and I would be all over that
04:12 PM gregcnc: I know, it would be worth rigging fee
04:14 PM fragalot: assuming of course it's not worn down worse than the average bridgeport
04:14 PM Wolf__: if it even has dovetail anything in it
04:15 PM fragalot: linear & box ways both wear out too if neglected
04:16 PM Wolf__: linear may be easier to replace tho
04:16 PM fragalot: true
04:17 PM gregcnc: it has linear ways
04:18 PM Wolf__: 10h 55m drive 702miles, I’ll pass =D
04:19 PM Wolf__: like $466 just in fuel for me lol
04:20 PM fragalot: hehe
04:21 PM fragalot: about €70 in fuel for me, even with our higher fuel prices
04:21 PM fragalot: always surprising to hear how much fuel american vehicles guzzle
04:21 PM Wolf__: well thats w/ my truck
04:22 PM Wolf__: 4500kg of load
04:22 PM fragalot: sounds about right for a 40ton truck here
04:22 PM fragalot: averaging ~30l/100km
04:23 PM Wolf__: 9mi/gal deisel @ ~$3/gal
04:23 PM asdfasd1: anyone experienced in electroplating in alcaline bath?
04:24 PM fragalot: asdfasd1: not intentionally
04:24 PM asdfasd1: haha accidently?
04:24 PM fragalot: :D
04:25 PM asdfasd1: I cant figure out why the voltage is changing, Im using constant current, and randomly the voltage switch between 2 values, below 1 volt or above 2 volts
04:26 PM asdfasd1: stay stable for long time, and randomly switch again
04:26 PM fragalot: how pure is the anode you're using?
04:27 PM asdfasd1: dont know, just piece of steel wire
04:27 PM asdfasd1: soft steel
04:27 PM asdfasd1: I guess mostly iron but who knows...
04:28 PM Wolf__: fragalot: https://i.imgur.com/P32UTAi.jpg and 9mpg (26.13 l/100km) is at the bad end of what that truck does 13mpg/18 l/100km is more typical when everything is running right, my car is more like 5.6 l/100km =D
04:29 PM fragalot: asdfasd1: the only 2 reasons I can think of that the voltage would swing like that is bubbles reducing surface area, or impure anode material (the material you are using to plate WITH), where the electron-voltage changes between the 2 materials currently plating
04:30 PM fragalot: that, or some weird chemical reaction swinging back & forth in the electrolyte
04:30 PM fragalot: Wolf__: 18 still sounds high for something that size
04:30 PM asdfasd1: it is not bubbles, definitely
04:31 PM asdfasd1: the bubbles dont change, and when agitate also not much change
04:31 PM asdfasd1: sometime the voltage rise when I agitate the bath
04:32 PM asdfasd1: it switch from low to high
04:32 PM asdfasd1: but dont know when it switch from high to low, cant find out
04:32 PM Wolf__: fragalot: yeah, not exactly built for over the road use, 4wheel drive and built more for rough site work
04:32 PM fragalot: Wolf__: :-)
04:33 PM asdfasd1: how the bath behave when the metal ions are consumed and the anothe cant provide enough?
04:33 PM asdfasd1: anode*
04:33 PM asdfasd1: is there such voltage change?
04:33 PM fragalot: asdfasd1: voltage rises, normally
04:33 PM asdfasd1: is that possible reason?
04:33 PM fragalot: potentially
04:33 PM fragalot: (get it?)
04:34 PM asdfasd1: I left it sit overnight without anode in
04:34 PM asdfasd1: today it started with low voltage, and then rised
04:34 PM fragalot: can you increase the surface area of the anode?
04:35 PM asdfasd1: yes I can, but it happened the same with large surface area
04:35 PM asdfasd1: I did try 5 times larger surface area
04:35 PM Wolf__: using bubbler or anything to agitate the bath?
04:38 PM roycroft: i am about to pull out my remaining hair
04:38 PM roycroft: an electrician is here
04:38 PM asdfasd1: I did try mechanical agitation, but couldnt notice any change, it was high voltage all the time
04:39 PM roycroft: my boss is asking him about how to use a piece of equipment with a 3 phase motor in the office, and how much it would cost to add a 3 phase circuit
04:39 PM fragalot: asdfasd1: not sure then.
04:39 PM roycroft: the electrician told him that the building "only has standard two phase power"
04:39 PM fragalot: roycroft: lol.
04:39 PM asdfasd1: any explanation why voltage should rise when metal ions are exhausted?
04:39 PM roycroft: as soon as the electrician leaves i shall tell my boss to not hire him under any circumstances
04:40 PM roycroft: this is as bad as the "push electricity" electrician i had to deal with years ago
04:40 PM roycroft: i needed some 30a circuits in a machine room, as we were going to get new upses soon after moving into it
04:40 PM fragalot: asdfasd1: conductivity changes, it takes more oomph to push the same current through the electrolyte from one electrode to the other
04:40 PM roycroft: but the upses we had at the time only needed 20a circuits
04:40 PM asdfasd1: ah, and forgot, at both voltages seems to build up thickness with same speed
04:40 PM roycroft: the electrician refused to install 30a circuits because they would "push" too much power to the existing upses
04:40 PM Wolf__: building actually have 3 phase?
04:41 PM fragalot: asdfasd1: it's the current that determines the rate of buildup, not voltage persé
04:41 PM roycroft: i pointed out that the existing upses had breakers and that i would replace the power cords with 10ga cords (rated for 30a)
04:41 PM fragalot: voltage tells you more about how efficient your setup is, and possibly what you are exchanging
04:41 PM roycroft: but he still said that the circuits would destroy the upses
04:41 PM fragalot: roycroft: oh god i've had that discussion before too
04:41 PM fragalot: >.<
04:42 PM Wolf__: roycroft: lol I have heard the same thing before, dont use a 5A usb power brick to charge 2A draw or it will burn up
04:42 PM roycroft: i am not a licensed electrician
04:42 PM roycroft: how is it that i know more about electricity than some licensed electricians?
04:42 PM fragalot: because a license is just a piece of paper
04:42 PM roycroft: especially since i don't kow much about electricity :)
04:42 PM fragalot: and people are idiots
04:43 PM Wolf__: ^ dont need to understand ohms law to hook up wires
04:43 PM roycroft: my question is this:
04:43 PM roycroft: if a circuit "pushes" electricity like that
04:43 PM fragalot: which it doesn't
04:43 PM roycroft: then if i have a receptacle that i do not cap
04:44 PM fragalot: sparks!
04:44 PM fragalot: :
04:44 PM fragalot: :D
04:44 PM roycroft: does the electricity fall out of the receptacles onto the floor?
04:44 PM Wolf__: haha yeah, “how aren’t the electrons leaking out?”
04:44 PM roycroft: and if so
04:44 PM roycroft: how can i harvest them?
04:45 PM roycroft: if i cut a hole in the ceiling can i capture the extra electricity from the office above me and use it to power my gear?
04:45 PM Wolf__: =D
04:45 PM fragalot: roycroft: they do fall out, and you can capture them by using an extension cord
04:45 PM roycroft: ok, he's gone
04:46 PM JT-Shop: Tom_itx: pretty windy here at the moment
04:46 PM roycroft: now i have to explain to my boss what "split single phase" electricity means
04:46 PM Rab: fragalot, that requires an older non-double-insulated drill.
04:46 PM JT-Shop: weather.gov says 40mph gusts tonight
04:47 PM roycroft: and dissuade him of the notion that "2 phase" electricity is delivered to anyone by any power grid anywhere
04:47 PM roycroft: and then tell him that a phase converter would be way cheaper than bringing 3 phase power into the building
04:48 PM roycroft: but the cheapest thing would probably be to just swap out motors
04:48 PM roycroft: and to give me the useless 3 phase motor :)
04:48 PM roycroft: so i can "dispose" of it
04:48 PM Wolf__: most likely cheaper if you need the full HP rating on the machine
04:48 PM JT-Shop: it's not useless you can build a rpc with it
04:49 PM roycroft: i don't know what equipment this is even
04:49 PM roycroft: i have no idea how big the motor is
04:49 PM roycroft: it's useless to him
04:49 PM roycroft: which is why i would be willing to "dispose" of it for him at no charge
04:49 PM Wolf__: we are looking at the cost diff, 10hp 3phase air compressor, static phase converter + 15hp idler, or just get a 220v single phase 10hp motor
04:50 PM roycroft: look not only at immediate out of pocket cost
04:50 PM roycroft: but efficiency
04:50 PM roycroft: and
04:50 PM roycroft: look at maintaining three pieces of equipment vs. one
04:51 PM roycroft: 10hp is still small enough to run on single phase
04:51 PM roycroft: oh
04:51 PM roycroft: he just said it's a paper cutter
04:51 PM Wolf__: yup, and not likely we are adding any other 3phase stuff there so not a good investment to get a rpc
04:51 PM roycroft: so probably a 1/4hp motor at most
04:52 PM Wolf__: lol
04:52 PM roycroft: i'm going to vote for swapping out the motor
04:52 PM Wolf__: yeah swap the motor out
04:52 PM roycroft: good
04:52 PM roycroft: and i avoided having to explain what split phase power is
04:52 PM Wolf__: haha
04:53 PM roycroft: i just told him it would be cheaper to swap out the motor and not need a dedicated circuit
04:53 PM roycroft: and that we could swap out the motor without having to use an electrician
04:54 PM Wolf__: I spent a hour or so explaining how RPC works and why there is a 1/3 loss on the static converter the other day to my business partner
04:54 PM roycroft: speaking of motors
04:54 PM roycroft: the vendor who sold me that used motor wants me to talk with their "ebay marketing specialist" tomorrow
04:54 PM roycroft: i don't know if that's a good thing or a bad thing
04:55 PM roycroft: but when the word salad begins i usually end up with suboptimal results
04:55 PM roycroft: i'll keep an open mind until i have the convesation with the "specialist"
04:56 PM roycroft: i'm expecting the alternative fact that "nos" means "used"
04:56 PM Wolf__: =/
04:56 PM roycroft: the seller already left me positive feedback
04:56 PM roycroft: and i have left no feedback
04:56 PM roycroft: so i am at an advantage there
04:57 PM roycroft: one of the first things i learned about selling in ebay is to never leave feedback until the deal is totally done and all parties are satisfied with it
04:59 PM Wolf__: I’ve only had one bad experience on ebay, and that was mostly because the idiot didn’t package the thing correctly
04:59 PM roycroft: i've only left negative feedback once in almost 20 years and almost 1000 transactions
04:59 PM Wolf__: https://i.imgur.com/dYfYG3T.jpg https://i.imgur.com/xSb5WA0.jpg
04:59 PM roycroft: but i have had a few negative experiences
05:00 PM roycroft: that's pretty poor packaging
05:00 PM roycroft: one of the experiences i had for which i should have left negative feedback was a packaging issue
05:00 PM roycroft: i was actually pretty pissed off about it
05:01 PM roycroft: it was a mcintosh amplifier
05:01 PM roycroft: that weighed ~70lbs
05:01 PM andypugh: I reckon it will still work fine
05:01 PM roycroft: i insisted that the seller double box it
05:01 PM roycroft: and i told him i would pay for the extra packaging
05:01 PM roycroft: so he double boxed it
05:01 PM roycroft: he took one box
05:01 PM roycroft: put it inside another box that was the exact same size
05:01 PM roycroft: and then put the amplifier inside that
05:02 PM roycroft: it arrived damaged, of course
05:02 PM Wolf__: https://i.imgur.com/IyFTeVm.jpg this one, the seller refunded me 50% because they found a dent in the side of it when packaging it for shipping, listed as NOS
05:02 PM roycroft: but in a way that i could fix
05:02 PM andypugh: Last time I posted something like that I used a plastic recycling bin from Ikea as the outer skin, and packed the inside with: https://www.kitepackaging.co.uk/scp/protection-and-wrapping/protective-foam-cushion/
05:02 PM roycroft: the output transistors were mounted on huge heat sinks
05:02 PM roycroft: and those heat sinks broke
05:03 PM roycroft: i was livid
05:03 PM roycroft: but i also realised that the seller was too stupid to not understand what double boxing heavy, delicate equipment means
05:03 PM roycroft: so i ended up just not leaving any feedback, instead of leaving negative feedback
05:04 PM roycroft: that lathe looks a lot like my lathe, wolf__
05:04 PM Wolf__: I think I did the same for that seller w/ the crap packaging https://i.imgur.com/uetkDdd.jpg r8 for scale lol
05:05 PM Wolf__: its a emco 13x36
05:05 PM roycroft: aah
05:05 PM roycroft: mine's a jet 12x36
05:05 PM roycroft: probably made in the same factory
05:05 PM gregcnc: enco
05:05 PM Wolf__: probably
05:05 PM roycroft: there is both emco and enco
05:06 PM roycroft: which are likely both made in the same factory :)
05:06 PM roycroft: mine was made in taiwan
05:06 PM gregcnc: no they aren't
05:06 PM Wolf__: taiwan made on mine as well
05:06 PM roycroft: back before that stuff moved to mainland china
05:06 PM gregcnc: that is Emco aren't
05:06 PM Wolf__: it might be a enco, just thats just the decal on the end cover lol
05:06 PM roycroft: i believe you
05:06 PM roycroft: ack
05:07 PM roycroft: it's time to go home
05:07 PM * roycroft goes home
05:07 PM andypugh: Emco was Austria, I think.
05:07 PM andypugh: Best packaging: (RS Components of course) https://photos.app.goo.gl/Rs3S1GrHQo3Ups9n7
05:08 PM andypugh: The contents (4 of them) are balamced on top of the box.
05:08 PM Wolf__: Enco then
05:08 PM Deejay: gn8
05:09 PM andypugh: http://www.lathes.co.uk/emco/index.html
05:16 PM Wolf__: derp, its a 12x37 Dar-Sin
05:31 PM jthornton: my feral cat buddy just took a nap in my lap well on my leg it's pretty small
05:32 PM andypugh: I have been watching too much eBay. I want an otter.
05:32 PM andypugh: Not eBay, YouTube
05:32 PM andypugh: Doh!
05:32 PM andypugh: I don’t think you can buy otters on eBay
05:33 PM jthornton: I'm watching chicken tv, one has something good and the rest are chasing her
05:33 PM jthornton: maybe otter accessories?
05:33 PM jthornton: do otters make good pets?
05:34 PM andypugh: I don’t know if they make good pets, I think they smell funny. But they are very cute. In a water-dog-cat-weasel-snake way
05:34 PM andypugh: I think Niklas Fauth has on otter fetish too, https://github.com/NiklasFauth/ottercontrol
05:35 PM jthornton: interesting description water-dog-cat-weasel-snake way
05:37 PM andypugh: I got that from the comments here: https://www.youtube.com/watch?v=ptkytDOVFN0
05:38 PM jthornton: wow same family as badgers, martins and wolverines...
05:39 PM andypugh: Carnivora?
05:41 PM andypugh: <Wikipedia> Ah, the Mustelidae, I was nearly right.
05:41 PM jthornton: just found the page
05:41 PM jthornton: carnivora bears and such
05:43 PM andypugh: The Mustelids are a sub-order of the carnivora. But it’s a very big family. (As Wikipedia says, from the 25g Weasel to the 1 ton Polar Bear
05:43 PM jthornton: I think I'll stick with feral rescue cats and chickens lol
05:44 PM jthornton: weasel can be bad news to a chicken owner, they fit through the smallest crack
05:50 PM andypugh: Oddly my random Wikipedia path had just taken me to “henhouse syndrome” via stoats via weasels.
05:54 PM andypugh: Getting wierd now… the transgender mole vole… https://en.wikipedia.org/wiki/Transcaucasian_mole_vole
05:55 PM jthornton: yea that is getting a bit weird
05:55 PM jthornton: better go back to fleabay lol
06:36 PM justanotheruser is now known as biden
06:37 PM biden is now known as justanotheruser
07:08 PM a-u: Looking for where to look for a way to switch back to F3 manual mode after an MDI command
07:08 PM a-u: For instance, that seems to work using the HB04 pendant, but not from gladeVCP.
07:10 PM a-u: ...ok, an automatic way, not just pressing F3 or some other button mapped to F3.
07:12 PM a-u: Lemme know if better to ask some other place / time.
07:14 PM Tom_itx: you're likely in the right place
07:15 PM Tom_itx: http://linuxcnc.org/docs/2.7/html/man/man1/halui.1.html
07:15 PM Tom_itx: that might help
07:16 PM Tom_itx: halui.mode.manual bit in
07:16 PM Tom_itx: halui.mode.mdi bit in
07:17 PM Tom_itx: halui.mode.auto bit in
07:17 PM andypugh: Do you want to go back to manual after any MDI automatically?
07:17 PM andypugh: I think that might be difficult.
07:17 PM a-u: Thanks - that is a good lead, and I see halui.mode.manual bit in pin for requesting manual mode -- but... I'm missing how to connect that to a gladevcp button or such that has triggered an MDI via code or oword
07:17 PM andypugh: Though possibly an edge detectr component on the mode.
07:18 PM Tom_itx: there's bound to be a way :)
07:18 PM a-u: Yep - it would be quite handy to have many (all my?) buttons switch back
07:18 PM a-u: I know that the XHC MPG pendant code does it for those MDI commands....
07:19 PM a-u: ...or that the HALUI layer does it after those MDI commands.
07:19 PM Tom_itx: so what does the pendant code look like?
07:19 PM andypugh: The GladeVCP could call Python, that dies the MDI, does a wait-complete and then switchs back.
07:19 PM a-u: The code itself is stock linuxcnc and I think that layer is TCL
07:21 PM andypugh: You could investigate waiting a second after halui.mode.is-manual then send a halui.mode.manual. (HAL timedelay component)
07:21 PM a-u: I've not tried GladeVCP to Python yet, but its just another layer to puzzle out .
07:22 PM a-u: The wait-complete sounds good, then trigger the halui.mode.manual pin. I just don't know where to start that wiring.
07:23 PM andypugh: If you are in Python yo don’t need pins.
07:24 PM andypugh: http://linuxcnc.org/docs/devel/html/config/python-interface.html
07:24 PM Tom_itx: what you been workin on lately andy?
07:24 PM andypugh: Nothing very LinuxCNC.
07:25 PM Tom_itx: finally got some thread mills to play with today
07:25 PM andypugh: Making lathe steady-rests, servicing my skis, and rerofitting a Faro arm wwith an Arduino-based replacement controller.
07:25 PM Tom_itx: you don't like their interface?
07:26 PM Tom_itx: or do you have other plans for it...
07:26 PM andypugh: My arm didn’t come with the controller.
07:26 PM Tom_itx: oh
07:26 PM andypugh: And the docs mention that the controller needs a maths coprocessor, so you cna guess how old it is....
07:26 PM Tom_itx: heh
07:27 PM Tom_itx: not a new arm then?
07:27 PM Tom_itx: dunno why i figured it was
07:27 PM andypugh: No, very old. They are pretty expensive.
07:27 PM Tom_itx: yeah i know
07:27 PM Tom_itx: they've got a bunch of scanners at the vo-tech where my kid goes
07:28 PM Tom_itx: from table top to full room
07:28 PM andypugh: Here are the rests: One original and the copies: https://photos.app.goo.gl/sLPGAoh5pnsEd3x67
07:28 PM Tom_itx: yeah i remember those
07:29 PM andypugh: It’s going slowly, as I have bben doing a lot of skiing and roofing.
07:29 PM Tom_itx: are ford's cutbacks gonna affect you?
07:30 PM andypugh: Seems likely.
07:30 PM a-u: I just finished the GladeVCP and XHC HB04 .... oh, OK, so HAL action to python script ... google shows some links to GladeVCP calling python, so I'll start reading. -- thanks!
07:30 PM andypugh: 50/50 chance I will need to find a new job.
07:30 PM Tom_itx: gm & them have both announced major cutbacks
07:37 PM norias: hello
07:41 PM andypugh: Hi
07:45 PM norias: how are you, andupugh?
07:45 PM norias: (i wish I could type)
07:45 PM norias: andypugh
07:46 PM andypugh: Annoyed at our government.
07:49 PM norias: oh, why?
07:49 PM andypugh: I am in the UK.
07:49 PM norias: That does sound annoying.
07:50 PM norias: God save the Queen.
07:51 PM andypugh: I am beginning to wonder if thisis the time for the Queen to sack the lot of them and take over.
07:51 PM norias: I guess ya'll have that option.
07:51 PM a-u: Uh... the good old QE won't last too long and some of the uh rest of the lot is uh less Sterling?
07:51 PM andypugh: (Interesting video about the Queen) https://www.youtube.com/watch?v=msxQWb4eR14
07:53 PM norias: oh, this does look interesting
08:09 PM norias: yup, that was interesting.
08:09 PM norias: also, a good reason to not have a queen
08:10 PM andypugh: How dare you!
08:10 PM andypugh: I am so shocked by that concept I am going to bed.
09:35 PM trentster: Hey all, I am in the process of putting in a new BOB. The new board frustratingly expects to use a single input for the all the proximity sensors. My previous BOB had them configured and wired to individual input pins. I now have to re-setup the configs. Sigh. Does anyone per chance have a sample config that uses a single input for limit sensors?
09:36 PM pink_vampire: yes
09:37 PM pink_vampire: if you are talking about limit switches, just make N.C loop from them, or take all the signals from your sensors in to OR gate
09:39 PM trentster: Before I do this, I wonder if its possible to use the opto protected input pins on the BOB to wire them individually. The manual for the new BOB seems to indicate that those ports of to be used for probes etc. But surely why not proximity inputs? Is my logic sound on this?
09:40 PM trentster: This is the BOB I am configuring: https://machdrives.com/pdf/BBC%20User%20Manual.pdf
09:40 PM trentster: any thoughts
09:41 PM pink_vampire: you can setup a "virtual" OR gate in linux cnc and connect to it several inputs
09:42 PM trentster: a virtual OR gate?
09:42 PM pink_vampire: yes
09:42 PM pink_vampire: you add in in the hal file
09:42 PM trentster: googling
09:47 PM trentster: Let me premis this with the fact I just want to get the machine back up and running with as little tinkering to the config files as possible. It would be great if I could use my existing setup as close as possible. I have already customized the interface with individual graphic sensor activation indicators.
09:51 PM pink_vampire: trentster: the BOB don't change the configuration
09:59 PM trentster: pink_vampire: No, the change of BOB requires a change of configuration. e.g. the parallel port pin config are totally different.
10:00 PM pink_vampire: but it is still LPT port,
10:00 PM pink_vampire: just connect the pins like it was before
10:00 PM trentster: but it still requires a change of config ;-)
10:02 PM trentster: Well I can't connect the pins like they were before, because previously each proximity was wired to its own pin input. Look at the PDF manual for this BOB, do you see anywhere there where it supports individual inputs for multiple proximity limits?
10:02 PM trentster: This is why I am here looking for help.
10:03 PM pink_vampire: but even if you change the pins it is the same configuration, just change the pin numbers in the hal file
10:06 PM trentster: Ok, but can I wire proximity sensors to opto-isolated inputs. The manual seems to indicate NO
10:06 PM pink_vampire: proximity sensors give you 1 / 0 output if i remember correct
10:08 PM pink_vampire: and opto-isolated input are just optocuplers that drive the input pin in the LPT,
10:08 PM trentster: They give you high or 0 voltage when they trigger, depending if they are NC or NO
10:08 PM pink_vampire: what voltage?
10:08 PM pink_vampire: 5v output?
10:08 PM pcw_home: Yeah the common input and the 3 opto inputs can be used with Prox's
10:08 PM trentster: Yes, I think so
10:09 PM pink_vampire: you need to connect it between the input and the input GND
10:09 PM pcw_home: NPN Proxes sink (ground) current, PNP proxes source current so you need to know what type you have to wire correctly
10:10 PM pink_vampire: what BOB is that?
10:11 PM trentster: pcw_home: This is the BOB I am using https://machdrives.com/pdf/BBC%20User%20Manual.pdf
10:11 PM trentster: I was told it's an excellent quality one, (AU made fwiw)
10:11 PM pink_vampire: get the C10
10:12 PM trentster: The cheapie ebay one that its replacing worked just fine for years, but all of a sudden stopped outputting variable voltage to the spindle for speed control.
10:13 PM pink_vampire: so in your BOB you have + In1 -
10:13 PM pcw_home: if you had one of the cheap so called Mach 5-Axis BOBs those woudl only work with NPN type proxes
10:13 PM pink_vampire: + go to the sensor and - go to the GND of the sensor
10:14 PM trentster: https://machdrives.com/bbc.aspx
10:15 PM pink_vampire: the "opto" part is just an IR LED, so you need to just take the output and light that LED
10:15 PM trentster: when I tried the opto ports I dont pickup any voltage change when the prox fires
10:16 PM pcw_home: With NPN proxes you connect the OPTO + to +5V and OPTO- to Prox out
10:16 PM pink_vampire: WHY "32 bit ARM CPU with safety interlock logic."
10:17 PM pcw_home: NPN prox output states are floating or grounded
10:17 PM pcw_home: so you need to supply the power to drive the opto LED
10:18 PM pcw_home: ( assuming 3 wire proxes )
10:18 PM trentster: pcw_home: These opto are connected 1 wire to 12V + and 1 wire to - and the signal wire is what was previously connected to the bob input port.
10:18 PM pink_vampire: pcw_home: it is opto isolated input, he can connect it and way he want, as long the polarity of the signal is correct
10:19 PM pcw_home: Yes but they are NPN proxes so only one way to connect
10:20 PM pink_vampire: correct
10:20 PM pcw_home: (at least if prox GND = BOB GND
10:20 PM trentster: This is the current config in the HAL file
10:20 PM trentster: net deb-xprox-in <= parport.0.pin-12-in
10:20 PM trentster: net deb-yprox-in <= parport.0.pin-13-in
10:20 PM trentster: net deb-zprox-in <= parport.0.pin-15-in
10:21 PM pcw_home: Note that you new BOB is +5V on OPTO +
10:21 PM pcw_home: (dont connect 12V without adding a resistor)
10:21 PM trentster: pcw_home: the new BOB is 12V
10:22 PM pcw_home: the OPTO inputs are 5V
10:22 PM trentster: aaah
10:22 PM trentster: That makes sense
10:22 PM pink_vampire: trentster: as i told you, it is just an led
10:22 PM trentster: shit…I may have blown them already - yikes!
10:22 PM pink_vampire: maybe they add a resistor on the board
10:23 PM skunkworks: still amazing... http://electronicsam.com/images/greenmachine/20190313_221605.jpg
10:23 PM skunkworks: draw it up - print it out...
10:23 PM trentster: Depending on what voltage comes back from the Prox when they trigger, I put a meter on them. I don't recall the voltage being 12v when it triggers
10:24 PM pcw_home: NPN proxes dont output a voltage
10:24 PM trentster: What do they output then?
10:24 PM pcw_home: the just short their outputs to ground when triggered
10:25 PM pcw_home: just a switch to ground
10:25 PM trentster: ok. So if thats the case how do we use them with opto inputs?
10:25 PM pcw_home: which is what the el-cheapo 5 axis bobs expect
10:25 PM pcw_home: connect IN+ to 5V and IN- to prox out
10:26 PM pink_vampire: trentster: can you take a picture of the sensor?
10:26 PM trentster: pcw_home: Ok that makes sense.
10:26 PM trentster: Yeah, let me grab a pic.. 1sec
10:28 PM trentster: pcw_home: This is them: https://us.banggood.com/Wholesale-Warehouse-NPN-DC-6-36V-Inductive-Proximity-Sensor-Detection-Switch-wp-Usa-41603.html
10:28 PM pcw_home: this is what the cheap 5 axis BOBs do: OPTO + common to 12V through resistors, individual OPTO- to inputs, so ground to activate
10:28 PM pink_vampire: [23:03:47] <trentster> They give you high or 0 voltage when they trigger, depending if they are NC or NO
10:29 PM pcw_home: not high, just open or 0
10:29 PM pcw_home: just a switch to ground
10:31 PM pink_vampire: pcw_home: so he need to supply voltage (+5V) via resistor to the to + in the input and go true the switch?
10:31 PM pcw_home: Yes
10:32 PM pcw_home: ( no resistor needed for 5V though )
10:33 PM pink_vampire: i will put 100 -330 ohm just to be on the safe side
10:33 PM pcw_home: ( BOB has 470 Ohm built in for 5V need to add external resistor for > 5V )
10:34 PM pcw_home: (manual page 20)
10:35 PM pink_vampire: ok, so if they have one, yeah ,here is no reason to add external one
10:35 PM pink_vampire: I'm not in front of the pdf, i just say in general
10:38 PM trentster: ok, so just to be clear. the prox is wired to 12V and the the black wire (that carries the trigger voltage) I connect to a resistor and plug that into the octo input port?
10:39 PM trentster: I will go and check the voltage and then select an appropriate resistor. I think I may have blown one of the ports already, as I think I tried to test direct
10:39 PM pink_vampire: trentster: connect a multimeter instead of the BOB input, and see that you read voltage first
10:39 PM trentster: btw thanks a ton for your help guys! - much appreciated.
10:40 PM pink_vampire: I'm re-wire my machine, I know how hard it is to be without your cnc machine up and running
10:45 PM pcw_home: The PROX output will not blow the input up, its just a switch to ground
10:46 PM trentster: pink_vampire: Yeah it sucks. Especially when you have had a config just right for years. The machine has been flawless
10:46 PM trentster: pcw_home: thanks. Is my question above incorrect then about the wiring?
10:49 PM pcw_home: If its a 3 wire prox, PROX power goes to 12V, PROX ground to BOB ground out to BOB IN- BOB IN+ to 5V
10:50 PM pcw_home: PROX out to BOB -IN, BOB +IN to +5V
10:50 PM pink_vampire: trentster: maybe it will be easyer for you just simulate it with LED and 330 resistor just to understand the wiring
10:51 PM trentster: Yeah. I am going to check the voltage now.
10:52 PM pink_vampire: dont risk the BOB if you are not 100% sure
10:52 PM trentster: I won't. ;-)
10:52 PM trentster: Altho this is prob too late, vause I played around a bunch the other day without a resistor.
10:53 PM pink_vampire: 50$ for BOB it is almost half a mesa card
10:53 PM trentster: So who knows what I have done!
10:53 PM trentster: $50 AUD
10:53 PM pink_vampire: ok.. $35
11:02 PM trentster: Ok, the voltage coming back is 12.1V
11:03 PM pink_vampire: you need a resistor
11:03 PM trentster: yup.
11:03 PM pink_vampire: 470 to 1k will do it
11:03 PM trentster: going to look at what I have in my box here
11:03 PM trentster: I def have 1k
11:04 PM pink_vampire: maybe 1 in parallel if 1K is too much
11:10 PM pcw_home: voltage from what is 12V?
11:13 PM pcw_home: NPN proxes should never have voltage out by themselves (the output pin is just a switch to ground)
11:20 PM trentster: pcw_home: If I put the meter - on -12v BOB and the +lead on the prox output wire… then manually make it fire…I get a drop from 12V to 0V
11:33 PM Tom_itx is now known as Tom_L