#linuxcnc Logs

Dec 09 2020

#linuxcnc Calendar

12:17 AM XXCoder: pretty cool https://youtu.be/ZMLLaidoT1o
01:11 AM Eric__: that video made me look for a collet chuck for my lather D1-3 I think. Doesn't have a backplate, just built in. Amazon reviews are good though
01:11 AM XXCoder: yeah. the video shows that its bit inferior in quality, back being out of parallel with front
01:12 AM XXCoder: he fixed it though
01:12 AM XXCoder: 3 bolts is crap, made from butteralloy. he couldnt seperate it and decided to just leave it
01:12 AM Eric__: The one I have now is assembled and totally out of whack. So it's not going to clunk together if I fix it
01:12 AM XXCoder: threw away other 3 bolts for back plate, used good bolts for that
01:13 AM Eric__: I watched 87 percent of it
01:13 AM Eric__: yesterday, I think
01:13 AM Eric__: he was lucky the front half was okay
01:13 AM XXCoder: yeah
01:14 AM Eric__: I'm not exactly sure if the nose is out of whack with the back, what can you do?
01:14 AM Eric__: I guess they are all made on a known-good backplate
01:14 AM Eric__: "good"
01:15 AM XXCoder: he was lucky tbhreads was also made on same side as front
01:15 AM XXCoder: made it possible to fix
01:15 AM Eric__: I think that might have worked out, he might have had to mount differently
01:16 AM XXCoder: if thread was off, he could refinish all parts of front
01:16 AM XXCoder: then get it around and finish back too
01:16 AM XXCoder: but theres only so much you can remove
01:16 AM Eric__: I bought mine from tormach when they had the linuxcnc meeting there
01:16 AM XXCoder: nice. i doubt i will run a lathe
01:16 AM Eric__: I think it was just over $100 with collet set :)
01:17 AM XXCoder: besides ones thats setup for me and all I need to to is to adjust with tool wear
01:17 AM XXCoder: not bad
01:17 AM Eric__: I don't know why I gave up on it, I'm sure it's just the backplate. But concentricity is way out
01:17 AM XXCoder: in all 5 years at last job, I ran lathe maybe 10 times. manual mill exactly once
01:18 AM Eric__: I would like to have a cnc lathe, but the stuff I do is better done on a manual
01:18 AM XXCoder: im not sure which machine i ran more than others lol
01:18 AM Eric__: I'm not selling machining services
01:19 AM XXCoder: new fadal, robodrill, a61
01:19 AM XXCoder: why not?
01:19 AM Eric__: manual mill drives me right up the wall
01:20 AM Eric__: cutting a slot on a manual mill after using a cnc just fills me with dread
01:20 AM XXCoder: heh job before last one i really hated one kind of job - saw along tube length
01:21 AM XXCoder: it was on hurco. if you pause a job on hurco, it homes z
01:21 AM Eric__: that seems unfriendly
01:21 AM XXCoder: normally thats not an issue but saw yeah
01:21 AM XXCoder: dont buy a hurco. ever
01:22 AM Eric__: so did you ever pause it and watch the saw go crookedly through the tube?
01:22 AM XXCoder: if someone gives you choice of new hurco or well worn haas left outside in rain, go home
01:22 AM Eric__: I was going to say, ask Gene Haas about Hurco
01:22 AM XXCoder: whats gene say about it
01:25 AM XXCoder: gene haas apparently cheated on tax
01:25 AM Eric__: their stupid conversational programing patent led indirectly to him selling cocaine
01:25 AM Eric__: he lost a suit over the patent
01:26 AM Eric__: then he decided the IRS would pay him back what he paid hurco
01:26 AM Eric__: thus the tax cheating
01:26 AM Eric__: his partner in the tax cheating used Haas' money to buy cocaine to sell
01:27 AM XXCoder: crazy
01:27 AM Eric__: I have always hated that patent
01:27 AM Eric__: so I would never vote to convict
01:28 AM Eric__: patents should cost some huge percentage of the proceeds if you sue to protect them
01:29 AM Eric__: we subsidize patent trolls like hurco
01:31 AM XXCoder: its annoying yeah its so much cheaper to violate
01:32 AM XXCoder: and it hardly cost much compared to profits
01:32 AM XXCoder: money should cost 10 times total of would have earned profit from licensing
01:33 AM Eric__: they changed the patent system after I graduated from college. Before then, you had to work fairly hard to get a patent
01:33 AM Eric__: now you just get your patent and sue everyone. For the most part
01:33 AM XXCoder: theres 350,000 patents on phone
01:34 AM XXCoder: apple patented certain rectangle
01:34 AM Eric__: design patent?
01:34 AM Eric__: those are worse, but fairly useless
01:34 AM Eric__: g'nite
01:34 AM XXCoder: night
03:29 AM XXCoder: JT-Cave: might enjoy this one https://www.youtube.com/feeds/videos.xml?channel_id=UCTZHAtuN_rrzTMXjmvbUXxA
03:52 AM Loetmichel: *grmbl* every day a new problem. Now that i have trained the coworkers to use car radiator fluid in the CNC mill spindle cooling system to prevent bio growth coworker just came by claiming that the cooling pump in the laser cutter is dead... it wasn. just so overgrown because of plain water in the system that it stalled. why doesent ANYONE think over here before doing something???
03:53 AM XXCoder: overgrown? overflowed?
03:53 AM Loetmichel: bacteria grow
03:54 AM Loetmichel: it grew so much that the rotor stalled in the pump
03:54 AM XXCoder: jee
03:54 AM XXCoder: thats why we use coolants. no bio growth
03:54 AM Loetmichel: indeed
03:54 AM Loetmichel: thats what happens when some idiot uses plain tap water in a laser cutter cooling system.
03:55 AM XXCoder: ueez
03:55 AM Loetmichel: its not that i explained why we use car coolant in the CNC mill cooling systems to all of them over and over.
03:55 AM Loetmichel: is it asking to much for them to transfer that thought to the very similar laser cooling system?
03:57 AM XXCoder: last job they have someone to do all maintance work
03:57 AM XXCoder: too many machines
03:57 AM XXCoder: robodrill though machinists have to manage coolant because it losts em fast.
03:58 AM XXCoder: have to keep it within 10% range
04:47 AM JT-Cave: morning
04:47 AM XXCoder: yo
04:48 AM XXCoder: JT-Cave: might enjoy this one https://www.youtube.com/feeds/videos.xml?channel_id=UCTZHAtuN_rrzTMXjmvbUXxA
04:54 AM JT-Cave: bad link
04:55 AM XXCoder: oops
04:56 AM XXCoder: https://youtu.be/jMHeQTmyMLY
05:01 AM JT-Cave: interesting usage of a boring head
05:04 AM XXCoder: which part?
05:04 AM JT-Cave: where he cuts the radius on the top and bottom
05:04 AM XXCoder: oh didnt know it was unusual use
05:05 AM XXCoder: not much of lathe operator lol
05:05 AM JT-Cave: the boring head is usually used in a mill
05:06 AM XXCoder: is that round insert?
05:06 AM XXCoder: thought it was something else
05:07 AM XXCoder: well it seems workable lol
05:07 AM XXCoder: one thing im ehh on is base is quite small. seems unsafe for fire
05:07 AM XXCoder: seems hes making an stirling engine, and that is fuel fire for it
05:08 AM XXCoder: chatted with author
05:22 AM Deejay: hi
05:22 AM JT-Cave: https://www.shars.com/products/toolholding-workholding/boring-heads-accessories/4-precision-boring-head
05:23 AM XXCoder: ohh interesting indeed
05:23 AM XXCoder: i guess its a way to make it easy to lower and rise without altering center of radius
05:44 AM Tom_L: morning
05:44 AM XXCoder: yo
05:44 AM XXCoder: jt made me wonder, wouldnt it also break precision?
05:44 AM XXCoder: or its that strong?
05:46 AM Tom_L: fairly much but you don't take roughing cuts with it
05:46 AM Tom_L: about the same or a little less than a reamer
05:46 AM XXCoder: hmm i guess if use for that, wouldnt use it for boring precise size holes
05:47 AM XXCoder: maybe good reuse for dead one though
06:09 AM JT-Cave: typically a boring head is mounted in the spindle of a mill and used to make a hole
06:09 AM XXCoder: I know. I used em lol
06:10 AM XXCoder: I just didnt reconize it in that use in video
06:10 AM JT-Cave: oh I thought you were confused about them
06:10 AM JT-Cave: I guess he had it mounted in a spin thingy
06:10 AM XXCoder: I was wondering because its not cheap, 100 usd or more, and abuse
06:10 AM * JT-Cave can't believe there is no #2 phillips in this house
06:10 AM XXCoder: ones i used was far more expensive though lol komit
06:11 AM XXCoder: over thousand for one of those
06:11 AM XXCoder: if you break on, you'd vomit. thats why its brand name is komit ;)
06:12 AM JT-Cave: lol
06:13 AM JT-Cave: mine is a cheap one... only used it a few times
06:13 AM XXCoder: it took my coworker friend over a year to make company buy a couple
06:13 AM XXCoder: then they bought few more. it was that good.
06:15 AM JT-Cave: I ended up ordering all new bearings for the gearbox on the planer as well as new seal
06:15 AM JT-Cave: new drive chains, one new gear and a new gasket
06:15 AM XXCoder: you bought a planar?
06:16 AM XXCoder: komit is great when you gonna make 1000 parts that has -0 +.0005" bores
06:16 AM XXCoder: and metal is hard
06:16 AM JT-Cave: a few years ago yea, just got a new insert head for it last night and can't look at it without a #2 phillips lol
06:16 AM XXCoder: lol
06:17 AM JT-Cave: https://gnipsel.com/images/wood-working/delta-planer/
06:18 AM XXCoder: oh yes, you bought a multi-insert ripper for that one right?
06:18 AM JT-Cave: https://luxcutheads.com/LuxCutIIIHead_for_DELTA_15_INCH_Planer_Model_22-780X5
06:18 AM XXCoder: yep
06:20 AM XXCoder: man i really need to get busy but cant do crap
06:20 AM XXCoder: threw my back out last week lol
06:20 AM XXCoder: and still damned dizzy
06:22 AM JT-Cave: hmm we will have some warmer weather for a while might get the hoses back out and setup the sprinklers again
09:07 AM skunkworks: XXCoder: https://www.youtube.com/watch?v=31iAlFyAGLM
09:12 AM * JT-Shop heads for Manila again...
09:42 AM Loetmichel: Oh MAN, am I **STUPID** ... Just soldered a brass enclosure corner with a propane torch. then immideatly picked it up with bare hands. didnt even blister, just melted the skin with a yellow stain and the smell of bacon... :D
10:00 AM t4nk_freenode: lol
10:01 AM t4nk_freenode: Loetmichel, it strikes me how often you testify of your stupidity ;)
10:02 AM Loetmichel: usually its more like carelessness than stupidity. but this time i honestly forgot that things get hot when soldering
10:02 AM t4nk_freenode: though the other day, I was cooking... and I noticed how I just briefly touched the rim of my pot...
10:02 AM Loetmichel: not "dont care", honestly forgot
10:03 AM t4nk_freenode: but it had already been enough to burn my finger
10:03 AM t4nk_freenode: didn't hurt as much as anticipated though
10:04 AM t4nk_freenode: yeah, it's probably the age, Loetmichel ;)
10:04 AM t4nk_freenode: first the eyes go
10:04 AM t4nk_freenode: then the mind
10:19 AM Eric__: this has been the daily edition of "Loetmichel suffers a minor injury"
10:20 AM Eric__: when I was brazing bike frames, grabbing one when it was still extremely hot was a fairly common injury
10:21 AM Eric__: we had a very ragged looking aloe plant in the bathroom
10:28 AM Eric__: I feel like entitling your utube, "rotary milling without a rotary table" and then having a $4000 harig grind all head should be grounds for deleting your utube account
10:29 AM Eric__: those grind alls are pretty neat though
10:38 AM Eric__: Unfortunately I'm going to get a education in taper pins. Ordered a couple sizes from mcmaster and apparently I don't understand how they are sized at all
10:40 AM Eric__: amazon is a lot more expensive on taper pins than mcmaster
10:50 AM t4nk_freenode: I have never used a soldering iron withouth burning myself
10:50 AM t4nk_freenode: and I mean never.
10:51 AM roycroft: you're grabbing the wrong end, t4nk_freenode
10:51 AM t4nk_freenode: lol
10:51 AM t4nk_freenode: well, at some point I am in any case
10:51 AM roycroft: the end with the power cord is the one you hold
11:06 AM jymmmm: Morning
11:25 AM Eric__: I have burned myself with a soldering iron, but it's so rare I don't remember how I did it
11:27 AM Eric__: the thing about Loetmichel's injury is that it's really easy to forget that something you soldered is hot, and want to move it
11:27 AM Eric__: hard to forget that a soldering iron is hot. I'll probably burn myself today, got to make a cable
12:04 PM t4nk_freenode: gotta handle a saw in a bit, so pretty fat chance I'l cut myself
12:27 PM Loetmichel: Eric__: i wouldnt say injury.
12:27 PM Loetmichel: just some pain as punishment for being stupid
12:27 PM Loetmichel: not even a blister
12:29 PM Eric__: we're going to have to change the name of the show them
12:29 PM Eric__: then
12:29 PM Eric__: "Loetmichel minor pain as punishment show"
12:35 PM t4nk_freenode: luckily we don't all own a circular saw
12:43 PM Loetmichel: hehe
12:43 PM Loetmichel: thats a tool i have a certain amount of respect for.
12:44 PM Loetmichel: because lapses in judgement there can be pretty terminal or at least crippling.
12:45 PM Loetmichel: i dont mind the occasional papercut or burn.. that comes with working, we all err, some more often some less. But if the one error could be your last you SHOULD show some caution.
02:24 PM Eric__: should I care that my 5v and 24v power supplies share a ground?
02:33 PM Tom_L: Eric__, no
02:33 PM Tom_L: they should
02:33 PM Tom_L: normally
02:34 PM Tom_L: just so they don't meet on the other end
02:35 PM Eric__: I think I would keep them isolated if I could, but the second thing I want to hook up is going to connect them so I can easily use my mesa servo board to drive my servo amps
02:35 PM Eric__: servo amps have 24v digital inputs for enable
02:36 PM Eric__: to be compatible with plc's I guess
03:39 PM JT-Cave: hmm not one stick of pvc electrical conduit on the shelf at manirds
05:02 PM XXCoder: skunkworks: nice
05:06 PM unterhaus: Well, the afci bit me 3 times trying to test my servo drive, guess i'm going to have to run it off of 220v
05:53 PM XXCoder: JT-Cave: https://youtu.be/2R-NRKk6U8s new freecad video. interesting
05:56 PM XXCoder: it'll be in 0.20 apparently. nice!
06:08 PM unterhaus: that looks good, wonder how long it took to make that model
06:31 PM JT-Cave: checking my data, was kinda close yesterday
06:33 PM JT-Cave: the viasat data page is really stupid and prob wastes 0.1GB of data with all the stupid dumb graphics...
06:33 PM JT-Cave: yep nothing to spare today...
06:34 PM JT-Cave: got as far as possible putting the planer back together tonight... ran out of parts
06:35 PM JavaBean: better than having extra parts at the end... but still, bummer. needed parts already on order?
06:43 PM JT-Cave: yea, found the parts that needed to be replaced so just have to wait... tomorrow I can install the cutter head and gear box assembly then as soon as the gasket and gear show up I can button up the gear box
06:43 PM XXCoder: jt isnt browser have "data saving" which cuts out most pictures
06:43 PM JT-Cave: once the cutter head is installed I can install every thing else so that's a big deal
06:44 PM JT-Cave: not that I know of
06:44 PM XXCoder: which browser do you use?
06:44 PM JT-Cave: dunno why I'm behind the 8 ball this month
06:44 PM JT-Cave: firefox
06:46 PM JT-Cave: been a long day, went to Manila to pick up the last fence parts so hope to have that done this week
06:55 PM XXCoder: nice
06:55 PM XXCoder: apparently you can set a proxy server
06:55 PM XXCoder: then it can agressively cache images and such
06:57 PM XXCoder: i would also suggest ublock, then in its settings, check the "anti-antiblock" so it will also disable scripts that detect anti-advert like ublock
06:57 PM XXCoder: ads eat a LOT of data.
06:59 PM XXCoder: (abp anti-circumvention filter list, and adblock warning removal list) in 3rd party filters in ublock settings
07:38 PM JavaBean: and a good hosts file
07:38 PM JavaBean: https://winhelp2002.mvps.org/hosts.htm is my pick
08:34 PM unterhaus: XXCoder where am I going to find the ublock anti-anti? Looking on my dashboard and don't see it
08:34 PM XXCoder: right click ublock icon, "manage this extension"
08:34 PM XXCoder: click "preferences" then "3rd party filters"
08:38 PM unterhaus: don't see 3rd party extensions
08:40 PM Tom_L: on the menu 'add ons'
08:41 PM Tom_L: then search for it
08:41 PM Tom_L: ctrl shift A
08:42 PM XXCoder: thats indirect way. direct is simply right click extension icon
08:42 PM XXCoder: didnt know about keyboard shortcut. nice.
08:46 PM unterhaus: how does a smart serial add-on work? Do I need a specific firmware?
08:46 PM Tom_L: you need a sserial instance yes
08:49 PM Tom_L: and the rs422 pins
08:51 PM Tom_L: http://linuxcnc.org/docs/2.8/html/drivers/hostmot2.html#_sserial_configuration
08:55 PM Tom_L: you'll need an rx and tx pin
08:56 PM Tom_L: and i'm not sure but i think each instance can handle up to 8
08:58 PM Tom_L: sserial_port_0=20xxxxxx
08:58 PM Tom_L: entry from my config line in the ini
09:00 PM unterhaus: do you have other daughter cards on the same fpga cards?
09:01 PM Tom_L: i have 1 daughter card on mine but i'm using pins from the 2nd plug
09:02 PM Tom_L: i have tested sserial but i'm not currently using it
09:02 PM Tom_L: in the hal file the pins appear as: hm2_[HOSTMOT2](Board).0.7i71.0.1.output-00
09:02 PM Tom_L: for example
09:03 PM Tom_L: 7i84 is another one
09:10 PM Tom_L: unterhaus, the sserial connects to the daughter card
09:11 PM unterhaus: I was just trying to figure out what configs I could have. There are firmwares that start with svss, but no description
09:12 PM Tom_L: i added it to one of mine but i'm not using those pins right now
09:12 PM unterhaus: I have a 7i93, a 50 pin daughter card that has rj45's on it so I would have another 50 pin socket open
09:12 PM Tom_L: you can open the vhd files and look for sserial
09:13 PM Tom_L: i'm not sure which daughter cards support sserial
09:15 PM unterhaus: I have a 7i44, which has 8 channels
09:17 PM unterhaus: this is one of those subjects that is probably easier to do than to explain
09:18 PM Tom_L: yeah likely so
09:26 PM skunkworks: http://electronicsam.com/images/greenmachine/IMG_20201209_212336.jpg
09:27 PM Tom_L: woops
09:27 PM skunkworks: my gas powered weller actually took them off without much effort.. (hot air)
09:27 PM Tom_L: what happened?
09:28 PM skunkworks: leadshine stepper driver. 2 mosfets shirted out. find out if replacing them fix it
09:28 PM skunkworks: fixes
09:29 PM skunkworks: (the power supply was a bit on the high side)
09:32 PM skunkworks: turco is in the trunk.. hoping to use the 3 axis leadshine
10:13 PM flyback-: https://youtu.be/erQ_9yEz0ls?t=248