#linuxcnc Logs

May 25 2020

#linuxcnc Calendar

12:23 AM dirty_d: I don't need one of those, but I want one of those
12:29 AM XXCoder: lol
12:29 AM XXCoder: so many cool stuff we dont need
01:45 AM Deejay: moin
02:36 AM veegee: CaptHindsight not yet, finalizing the lease contract first. Making sure that we can put a ramp that extends past the length of the block and getting all that into the contract.
02:36 AM veegee: But our move in date is sometime early this week
02:37 AM veegee: I'll definitely record it from the air and ground
02:38 AM veegee: XXCoder what is that?
02:38 AM XXCoder: dirt vaporizer
02:38 AM * veegee Oh it's one of these https://www.surclean.com/
02:51 AM veegee: This is made from two boards of 3/4" plywood and five 4x4s
02:52 AM XXCoder: people is going to die. https://www.cnbc.com/2020/05/21/trump-says-he-wont-close-the-country-if-second-wave-of-coronavirus-hits.html
02:54 AM sensille: but we already saved millions and millions of lives!
03:01 AM veegee: lol
03:01 AM veegee: they voted for it, they deserve it
03:02 AM XXCoder: im not much into darwinism
03:03 AM XXCoder: after all, the voters get sick and share to their friends and family that may or may not voted for him
03:03 AM veegee: Well half of america is braindead retarded/religious/conservative
03:03 AM veegee: more than half
03:03 AM XXCoder: far less than half
03:12 AM XXCoder: its sad that people is hard party lines though
03:12 AM XXCoder: so many sane republicans voted for him
03:46 AM Loetmichel: mornin'
03:46 AM Loetmichel: $me just had a little brainfart... designed a cover for an aluminium part. 3dprinted it... "ah, colour of the filament is irrelevant, i can powdercoat it afterwards with the alu parts... took me a couple seconds to notice... "there is no filament that can take 200°C without being a puddle on the floor"... :-)
03:48 AM XXCoder: sure there is
03:48 AM XXCoder: peek
03:48 AM XXCoder: nylon
03:48 AM Loetmichel: XXCoder: surely not the pla that i use ;)
03:49 AM XXCoder: 200c is very close, it will fall apart yeah heh
03:49 AM Loetmichel: and i am not sucre, can be that the locap poweder coater uses more heat
03:49 AM Loetmichel: lead solder melts, leadfree (SN99AG1) doesent when powdercoatet
03:49 AM Loetmichel: local powder coater
05:24 AM JT-Cave: mornign
05:27 AM XXCoder: hey
06:41 AM Tom_L: morning
06:43 AM XXCoder: you have chicken poop protection jacket? heh
06:43 AM XXCoder: i saw that same spot on your jacket on 2 videos :)
06:44 AM JT-Cave: yea we change out the chicken shirt every few days
06:46 AM XXCoder: smart
07:02 AM Tom_L: JT-Cave, wondering if this is a typo cause it's new to me: https://gnipsel.com/linuxcnc/uspace/rpi4-rt.html
07:02 AM Tom_L: make -j4 dtbs
07:03 AM JT-Cave: no typo it's what I did
07:03 AM Tom_L: what is that?
07:05 AM JT-Cave: no clue I just copied it from where I found the build instructions
07:05 AM Tom_L: ahh ok
07:07 AM Tom_L: do you know what desktop they use on the lite version?
07:21 AM _unreal_: dont know how far I'm going to get today on cnc work but at least I'm working on attaching wires
07:21 AM _unreal_: yesterday I finally found all my parts and got everything soldered
07:21 AM _unreal_: only have a few wires left to solder
07:22 AM _unreal_: so some lights
07:35 AM JT-Cave: lite is none IIRC
07:49 AM jymmmm: good morning
09:03 AM unterhaus_: amazon just asked me to answer a customer question about a bracket to fit a 2.5" hard drive into a 3.5" space
09:04 AM unterhaus_: The question was, "will this fit a 3.5" hard drive"
09:04 AM unterhaus_: I told amazon I couldn't answer it because it was too stupid.
09:19 AM SpeedEvil: I wish those emails were better phrased.
09:20 AM SpeedEvil: They tend to get stupid answers for the reason they're phrased as personal requests, when they should really not be.
09:22 AM SpeedEvil: Though checking, the old wording (example from 2014) of ' Mukker asked
09:22 AM SpeedEvil: "Hi there.. could you please confirm the head set will work with a Bluetoon enabled TV."
09:22 AM SpeedEvil: has improved.
09:24 AM SpeedEvil: 'As someone who owns 100mm in Line Bathroom..., can you help this fellow customer?
09:27 AM SpeedEvil: hah
09:27 AM SpeedEvil: changed sometime in 2017 apparently
09:59 AM dirty_d: do you guys know c++?
10:02 AM t4nk_freenode: why, dirty_d?
10:07 AM dirty_d: I was messing around last night and found some weird behavior, not sure if it's just some godbolt oddity or what. https://godbolt.org/z/BRf4K9
10:10 AM dirty_d: std::launder is only supposed to be an optimization barrier
10:27 AM t4nk_freenode: I never use it, never use the site either..
10:28 AM t4nk_freenode: but looking at this: // weird behavior with gcc here, fine with same gcc version on my system, fine with clang
10:29 AM t4nk_freenode: makes me think that it might be some ublock/adblock/noscript setting preventing that site to function properly?
10:34 AM dirty_d: yea, or maybe some weird compilation options for gcc that they used for security or something
12:28 PM jymmmm: Does anyone know if it's possible to hack/modify output voltage on these type of power supplys? https://www.banggood.com/Geekcreit-AC-110-240V-Input-To-DC-24V-17A-400W-Switching-Power-Supply-Driver-Board-p-1272112.html
12:28 PM SpeedEvil: It is likely there is a little pot that lets you set it from about 22-26V
12:29 PM SpeedEvil: yeah
12:29 PM SpeedEvil: see the 'adj' pot
12:30 PM jymmmm: I thought that was just a calibration pot
12:30 PM SpeedEvil: ?
12:31 PM Tom_L: isn't that what you want to do? calibrate it to another voltate?
12:31 PM jymmmm: No. See these are ZERO to 24V adjustable https://www.ebay.com/itm/480W-AC-Power-Supply-Adjustable-AC-110-220V-20A-Digital-Switching-Power-Supply/392044274271
12:32 PM SpeedEvil: https://www.meanwell.com/Upload/PDF/ERPF-400/ERPF-400-SPEC.PDF for example
12:32 PM jymmmm: I'm just wanting to convert a fixed 24v to 16.8v
12:32 PM SpeedEvil: specifies 21.6-26.4
12:32 PM SpeedEvil: ah
12:32 PM SpeedEvil: Do you actually mean 'a constant current constant voltage charger' ?
12:33 PM SpeedEvil: ecause you do know you can't charge 4 cell lithium at 16.8V
12:33 PM jymmmm: why not?
12:34 PM jymmmm: (seriously)
12:34 PM SpeedEvil: Because they start out at 10V or so and if you force them to 16V at that point (using several hundred amps) they will explode
12:34 PM SpeedEvil: You need to regulate the current to the maximum (typically a one or two hour charge time)
12:34 PM SpeedEvil: The power supply may not be designed to operate in current limited mode, and may do bad things, even if your cells can take 16A
12:35 PM SpeedEvil: You are using a battery management board?
12:35 PM jymmmm: yes
12:36 PM SpeedEvil: https://www.aliexpress.com/item/32860858303.html something like this can be set to take 24V in, and put 16.8V out, current limited to whatever amps is appropriuate
12:38 PM jymmmm: SpeedEvil: FWIW the charge current of these cells at 1C is 60A
12:40 PM SpeedEvil: Two of the above board set to 11 amps or so max each and 16.8V woul[d probably be more or less reasonable for a charger for example.
12:40 PM SpeedEvil: e-bike/... chargers tend to be much higher than 16.8V, though you might find some
12:41 PM jesseg: jymmmm, are you playing with Nissan Leaf battery modules? My brother just got 7 hooked up to his UPS LOL.
12:42 PM jymmmm: jesseg: LG / Chevy Volt cells... https://batteryhookup.com/collections/green-friday-weekend-deals/products/new-lg-chem-n2-1-3-7v-120ah-cell-module
12:43 PM jesseg: jymmmm, cooool!
12:45 PM jesseg: wait a second... are they 60ah? or 120ah?
12:45 PM jesseg: oh never mind
12:45 PM jesseg: two per module :P
12:45 PM jesseg: so 1C for the module would be 120A?
12:46 PM dirty_d: jymmmm, i saw the reviews for that adjustable PSU on amazon before. seemed to indicate that it's proper shite
12:47 PM dirty_d: in the bad kind of way
12:47 PM jymmmm: The module is 2 cells. Each cell is 60AH
12:47 PM jymmmm: dirty_d: Yeah? did they say why?
12:48 PM dirty_d: jymmmm, under load the voltage dropped a lot
12:49 PM jymmmm: dirty_d: ah, good to know
12:51 PM jymmmm: this looks reasoable https://www.amazon.com/AVAWO-Switching-Transformer-Regulated-Computer/dp/B0146IAXYO/
12:52 PM FinboySlick: That's a lot of lithium for just one single jymmmm... You ought to be careful.
12:52 PM FinboySlick: Yo may end up like this: https://twitter.com/ldn_gaz/status/1259607865234522112
12:53 PM jymmmm: don king look
12:53 PM veegee: Wait, air conditioners are rated in the unit "ton"?
12:54 PM veegee: like 5 ton AC, does it weigh 10,000 lbs?
12:54 PM FinboySlick: veegee: No. It's a bit like BTU.
12:54 PM veegee: idiotic units all around
12:54 PM veegee: BTU, ton fucking god damn americans
12:54 PM veegee: why this bullshit when we have the perfectly usable Watt
12:56 PM CaptHindsight: veegee: to quickly convert pounds of water per deg F
12:56 PM veegee: So my industrial unit, the calculations show it needs a 32kW/108,000BTU/9ton AC to be on the safe side considering poor insulation
12:56 PM veegee: fuck pounds and ºF, especially ºF
12:56 PM CaptHindsight: veegee: how mnay sq ft ot meters? what is the ceiling height?
12:57 PM CaptHindsight: ot/or
12:57 PM veegee: 3,300 sq•ft, 15' ceiling height
12:58 PM jymmmm: A ton is the cooling capacity of an air conditioning system. One ton is equal to the amount of heat required (288,000 Btu) to melt one ton of ice in a 24-hour period. A one-ton air conditioner is rated at 12,000 Btu per hour (288,000/24). ... Typical residential central heating systems provide up to 5-tons of cooling.
12:58 PM veegee: fuck your ton
12:58 PM jymmmm: fuck your freezing/boiling of water Celcious =)
12:59 PM veegee: Hey I'm sticking with Watts
12:59 PM CaptHindsight: veegee: I use a 24K BTU unit to keep it dry and I have 24 ft ceilings
12:59 PM jymmmm: I use BTU's
12:59 PM veegee: Yeah my main concern is humidity. I don't want rust
12:59 PM veegee: It's not even BTU, it's BTU/h
12:59 PM veegee: they don't even get that right
12:59 PM jymmmm: veegee: Show me your metric watch biotch =)
12:59 PM sensille: wait, ACs are supposed to _melt_ ice?
01:00 PM veegee: No, it's just a stupid thing for representing thermal power transfer
01:00 PM jymmmm: sensille: Yeah, jsut add salt and fuck em all up =)
01:00 PM veegee: aka Watts
01:00 PM jymmmm: BTU's
01:00 PM veegee: That's a unit of energy
01:00 PM CaptHindsight: veegee: 100K BTU would cool that area to 25C on a 40C day
01:01 PM jymmmm: It's just easier a BTU calcs are everywhere
01:01 PM veegee: CaptHindsight yeah that's pretty much what the calculators show
01:01 PM CaptHindsight: maybe 20C if the doors and windows are tight
01:01 PM veegee: I also sweat A LOT
01:01 PM veegee: and humidity makes breathing harder and uncomfortable for me
01:02 PM CaptHindsight: 25C for me is hot
01:02 PM veegee: Yeah me too
01:02 PM CaptHindsight: 10C is comfortable work temp
01:03 PM veegee: 23ºC at like 30-40% RH is about right for me for optimal desk working. Lower than 15 for any kind of physical work
01:03 PM jymmmm: veegee: Seriosuly though, spend the money on (passive) insulation, it's well worth it
01:03 PM CaptHindsight: I keep the shop area at 15C in winter
01:03 PM veegee: jymmmm like spray form?
01:03 PM veegee: foam*
01:04 PM CaptHindsight: jymmmm: commercial owners only allow for so much "modification"
01:05 PM jymmmm: veegee: I lived in a cottage with ZERO insulation in the walls and ceiling. After 4 years, I put in blown insulation in the attic, It dropped the summer temps down like 10f and MUCH warmer in the winters
01:05 PM veegee: These guys are cool, they don't mind insulation or whatever
01:05 PM jymmmm: veegee: and I only rented the place,
01:05 PM sensille: so there's an imperial ton, a metric ton and a thermal ton?
01:05 PM veegee: sensille yes, thanks to the fucking americans
01:05 PM jymmmm: veegee: the $200 I spent was well worth it
01:05 PM CaptHindsight: sensille: even more, shit ton, fuck ton, ton of bricks, etc
01:06 PM veegee: That's all? I wonder how much it'll cost for a 3,300 sq•ft unit
01:06 PM veegee: Very large ceiling surface area
01:06 PM jymmmm: veegee: After you buy like 10 bags, they rent you the blower for free.
01:06 PM CaptHindsight: >$1 sq ft
01:06 PM CaptHindsight: depends on thickness
01:07 PM CaptHindsight: veegee: if you are getting a long term lease it might make sense
01:07 PM veegee: We have a 1 year so far to be safe
01:07 PM veegee: If anything comes of this hobby to cover rent at least, then long term makes sense
01:07 PM CaptHindsight: i would not even paint for a 1 year
01:08 PM jymmmm: https://www.homedepot.com/p/Greenfiber-Low-Dust-Cellulose-Blown-In-Insulation-19-lbs-INS541LD/100318635
01:08 PM jymmmm: Covers 40 sq. ft. per 19 lb. bag at R-19
01:08 PM jymmmm: $13/bag
01:08 PM veegee: CaptHindsight yeah agreed. any modification I make is intended to be removed if/when we leave
01:08 PM CaptHindsight: veegee: look into those portable AC units
01:08 PM veegee: I have roof access, not to difficult to put blowers up there
01:09 PM CaptHindsight: I ran mini-splits through the windows
01:09 PM veegee: Dehumidifiers are easy, but ACs need to dump their heat outside
01:09 PM veegee: so might be easier just to put a couple of "5 ton" units on the roof
01:09 PM CaptHindsight: portables can be ducted outside with dryer vent
01:09 PM jymmmm: veegee: IIRC, I used 8 bags and made it 10" thick
01:10 PM CaptHindsight: have you prices 5 ton units?
01:10 PM veegee: Yeah I can compare prices. If I do portable, need like 10 of them
01:11 PM veegee: Need to run some numbers to find the cheapest portable units for the rating
01:11 PM CaptHindsight: oh i used to move one around
01:11 PM CaptHindsight: just cool the area around me
01:11 PM jymmmm: veegee: and STARTED blown in the attic in the summer around 11pm, and that's after I had a 20" whole house fan blowing INTO the attic for a few hours.
01:12 PM veegee: Humidity is more of an issue. Dehumidifiers alone might be sufficient and use much less power
01:13 PM CaptHindsight: veegee: they would dump a 5 gal bucket over night ea
01:13 PM CaptHindsight: 15 gal/day
01:13 PM veegee: That's fine
01:16 PM CaptHindsight: these are 1KW units
01:17 PM CaptHindsight: I hooked up another 24K BTU unit yesterday, was 90F and 120% humidity
01:17 PM veegee: Something like this would be nice: https://www.rackmountsolutions.net/portable-outdoor-12-ton-144-400-btu-air-conditioning-unit/
01:17 PM veegee: That's very expensive, but you get the idea
01:18 PM CaptHindsight: sure but on a budget I'd look at the wall mount versions used to cool cell radio shacks
01:18 PM CaptHindsight: they replace them every few years
01:18 PM CaptHindsight: but they last for far more
01:20 PM CaptHindsight: usually a few hundred $
01:20 PM CaptHindsight: used
01:20 PM CaptHindsight: I'll find a pic
01:21 PM CaptHindsight: https://cellsitesolutions.com/portfolio-view/hvac/
01:22 PM CaptHindsight: if you have a window opening, remove the window, hang this on the exterior wall
01:26 PM CaptHindsight: several tons of cooling for cheap
02:08 PM _unreal_: Just did a power test on my controller hardware
02:08 PM _unreal_: main power works, did not power the transformer not hooked up
02:09 PM _unreal_: I did power the mesa. and few other parts. tested relays etc...
02:09 PM _unreal_: so everything works
02:09 PM CaptHindsight: "flame ON"
02:09 PM _unreal_: no smoke
02:10 PM _unreal_: the only thing I dont like is that I have no method for draining the CAPS
02:10 PM _unreal_: I dont know if the motor controllers will drain them if the power is off?
02:10 PM _unreal_: regardless the moment power goes off the motor controller DISABLE pin is triggered to disable the motor controllers
02:11 PM _unreal_: I am thinking about setting up a relay just to kill the caps
02:11 PM _unreal_: relay with big dropping resistors?
02:12 PM Loetmichel: be careful. most driver caps are NOT meant to be hard shorted
02:12 PM _unreal_: I would do it with a resistor
02:12 PM Loetmichel: you can destroy them that way... not to mention welding the relay shut
02:13 PM _unreal_: or light bulb
02:13 PM Loetmichel: i wouldnt care, the driver boards usually have bleeder resistors over the caps
02:13 PM _unreal_: the other option is to just put a high value resistor across the terminals
02:13 PM Loetmichel: so they discharge in a minute or two
02:14 PM Loetmichel: yeah, thats called a bleeder resistor and is usually already in there
02:14 PM _unreal_: I dont think there are any in ve7it design http://ve7it.cowlug.org/dspic-servo.html
02:15 PM Loetmichel: looks like it
02:15 PM _unreal_: ?
02:15 PM _unreal_: that there are or are not?
02:16 PM Loetmichel: what a lapse. you should add them
02:16 PM Loetmichel: looks like there are none, just looked into the circuit diagrams
02:16 PM _unreal_: what would you suggest?
02:16 PM _unreal_: my caps are
02:16 PM Loetmichel: depends: which supply voltage?
02:16 PM _unreal_: 27,000 uF each 2x. and 24v psu
02:16 PM Loetmichel: aim for about 2 min to discharge the caps to "non dangerous levels"
02:18 PM _unreal_: the next phase is getting lcnc interfaced with the mesa board and the controllers tuned. mesa board updated settings wise
02:23 PM Loetmichel: _unreal_: i would use about 360 Ohms 2W on each cap
02:23 PM Loetmichel: that should be enough to discharge them in less than 10 seconds
02:24 PM Loetmichel: or use 3,6kohm 0.25W, then it takes about 60 sec to "next to nothing" left as a charge
02:33 PM CaptHindsight: but then how will one make a shocking discovery by reaching the pins of the caps?
02:36 PM _unreal_: got to use the tounge then
02:49 PM _unreal_: That was a pain. ok got my lcnc comp connected to my tablet. which is providing internet
02:50 PM _unreal_: it wont work with my wireless adapters no support hehe
02:55 PM _unreal_ is now known as Guest73235
02:55 PM acer_ is now known as _unreal_
02:55 PM _unreal_: That was a pain
02:56 PM _unreal_: ARG.
02:57 PM _unreal_: ok so the linuxcnc computer is updating
03:04 PM _unreal_: ?
03:06 PM Tom_L: _unreal_, i used a couple leds to drain the caps on mine
03:06 PM Tom_L: and shows power on when on
03:07 PM Tom_L: works good
03:13 PM Tom_L: and you can tell when they're nearly discharged
03:21 PM _unreal_: hum
03:21 PM _unreal_: ya right now I'm trying to start to get the lcnc system setup
03:22 PM _unreal_: currently on the jethornton.github installing python and other scripts
03:23 PM Tom_L: so am i on the rpi
03:23 PM Tom_L: wanted to test a fresh install
03:23 PM _unreal_: the latest linuxcnc is using debian9 right?
03:24 PM Tom_L: 10
03:24 PM Tom_L: buster
03:24 PM Tom_L: 9 is stretch
03:24 PM _unreal_: not sure which version I'm running
03:24 PM Tom_L: shouldn't make much difference
03:25 PM Tom_L: i liked the led idea since it saves a relay etc
03:26 PM ferdna: Tom_L,
03:26 PM ferdna: i wanted to show you somethinjg
03:26 PM ferdna: but i have to leave right now
03:26 PM ferdna: bbl
03:26 PM _unreal_: https://jethornton.github.io/7i96/install.html
03:26 PM Tom_L: _unreal_, what is that for?
03:27 PM _unreal_: getting the mesa setup
03:27 PM Tom_L: oh, you're using the configuration tool
03:27 PM Tom_L: i've never used that
03:27 PM _unreal_: im installing everything for the first time
03:28 PM Tom_L: yep
03:28 PM Tom_L: it will get you started at least
03:29 PM Tom_L: just finished building the preempt-rt kernel for the rpi now working on linuxcnc
03:31 PM _unreal_: I have an ethernet to rs485 adapter.
03:32 PM _unreal_: if I understand pcw_home there are no modules for it or somethihng like that
03:32 PM jymmmm: CaptHindsight: 120% RH ?W what? where?
03:32 PM Tom_L: for the spindle?
03:32 PM _unreal_: annoying
03:32 PM Tom_L: likely not
03:32 PM _unreal_: dont know hy
03:32 PM _unreal_: why
03:32 PM Tom_L: nobody has needed one enough to write one yet?
03:35 PM _unreal_: https://jethornton.github.io/7i96/install.html
03:35 PM _unreal_: trying to figure out the 3rd section'
03:36 PM Tom_L: display?
03:36 PM _unreal_: create a file in your hjome DIR. did that already
03:36 PM _unreal_: the IF statements i'm not sure about
03:36 PM Tom_L: add that to the file .xsessionrc
03:36 PM _unreal_: do I open the "file" .xsessionrc? and put it in it or do I just run the IF script in the console?
03:37 PM Tom_L: create the file in your /home/unreal/ directory
03:38 PM jymmmm: ~/prettyprettyprincess/
03:38 PM Tom_L: _unreal_, nano /home/unreal/.xsessionrc
03:38 PM Tom_L: add those lines to it and save the file
03:39 PM jymmmm: make a backup of the file before editing
03:39 PM Tom_L: it's a new file?
03:39 PM jymmmm: IDK, just SOP for me
03:39 PM Tom_L: the directions say 'create'
03:40 PM _unreal_: rebooting'
03:40 PM jymmmm: Tom_L: Just a habbit to CYA =)
03:40 PM _unreal_: heh
03:40 PM _unreal_: wow what a wet weekend
03:40 PM _unreal_: ARG...
03:40 PM Tom_L: _unreal_, files with a . in the beginning i think are hidden files. if you want to see them in a listing press ctrl H
03:41 PM _unreal_: :) thanks
03:41 PM Tom_L: that will make them visible in the gui file listing
03:41 PM _unreal_: I do know that much btw :)
03:41 PM Tom_L: the ctrl h?
03:41 PM _unreal_: using the h flag
03:41 PM Tom_L: k
03:41 PM _unreal_: for hidden
03:42 PM jymmmm: .bashrc ---> alias l='ls -asl'
03:42 PM jymmmm: =)
03:44 PM _unreal_: ok power is up
03:44 PM _unreal_: and the controller box is powered
03:45 PM Tom_L: yeah i noticed the mushroom cloud
03:45 PM _unreal_: this is the first time I have given this laptops battery a work out in some time
03:47 PM _unreal_: cool 7i96 config software up and running
03:47 PM _unreal_: i have no idea what to name this configuration name for the mesa card
03:48 PM _unreal_: considering this machine is all hand made
03:48 PM Tom_L: 7i96_new_mill
03:48 PM _unreal_: but its made from old/used parts ;)
03:48 PM Tom_L: 7i96_old_new_mill
03:49 PM _unreal_: arg... max linear velocity. i'm not sure what my max is even likely to bee
03:49 PM _unreal_: prob not much more then 800mm/;m
03:50 PM _unreal_: firmware step gens no pwm step gens and pwm
03:50 PM _unreal_: ?
03:52 PM _unreal_: how do I go about finding or setting the IP address?
03:53 PM _unreal_: untill I have an IP I can not comunicate with the card
03:56 PM Tom_L: just a sec
03:56 PM Tom_L: what ip do you want to use?
03:57 PM Tom_L: i'd suggest using the alternate one
03:57 PM Tom_L: i think you jumper the card for that
03:57 PM Tom_L: then set up a static ip on your pc
03:57 PM Tom_L: you have a free ethernet connection on the pc right?
03:57 PM _unreal_: that one
03:58 PM _unreal_: omg there back...
03:58 PM _unreal_: ok so there are a mated pair of cardnals that keep attacking a certain window
03:58 PM _unreal_: they see them selves
03:59 PM Tom_L: https://gnipsel.com/linuxcnc/uspace/debian9-eth.html
03:59 PM Tom_L: that should get you there
04:10 PM Deejay: gn8
04:15 PM _unreal_: not connecting still
04:15 PM _unreal_: I have the mesa directly connected to my computers ethernet
04:16 PM Tom_L: did you check the jumper on the card?
04:17 PM _unreal_: jumper on the card?
04:17 PM Tom_L: for primary/secondary ip
04:18 PM _unreal_: ?
04:18 PM _unreal_: everything is default
04:18 PM _unreal_: I have not touched the jumper(s) on the card
04:20 PM _unreal_: wtf? sudo ifconfig command not found
04:20 PM _unreal_: ip link show does not show an ip address
04:20 PM Tom_L: is the card powered on?
04:21 PM _unreal_: yes
04:22 PM Tom_L: what card is it? 7i76?
04:22 PM _unreal_: yes
04:24 PM Tom_L: W9 should be in the down position
04:24 PM Tom_L: secondary ip
04:24 PM Tom_L: no that's the wrong one...
04:24 PM Tom_L: just a sec
04:25 PM Tom_L: W2 down, W3 up
04:25 PM Tom_L: that's the 2ndary ip
04:25 PM Tom_L: (fixed from eeprom) which is default to
04:27 PM Tom_L: that allows you to define your own ip if needed
04:37 PM _unreal_: I only see w5w6 w7 w8
04:40 PM Tom_L: it's a 7i76e right?
04:40 PM Tom_L: ethernet
04:40 PM _unreal_: ahh
04:40 PM _unreal_: ethrnet yes
04:40 PM Tom_L: P.4
04:40 PM _unreal_: ?
04:40 PM Tom_L: in the pdf
04:41 PM Tom_L: W2 down W3 up - fixed from eeprom (alternate ip)
04:43 PM Tom_L: right behind the ethernet plug
04:43 PM Tom_L: right beside W4 W5
04:44 PM Tom_L: just move W3 up
04:44 PM Tom_L: from the defaults
04:47 PM _unreal_: do I want to be directly connected to the card or be using a switch?
04:48 PM _unreal_: thre is no jumper behind the ethernet plug
04:48 PM Tom_L: there should be
04:48 PM Tom_L: take a pic of it
04:49 PM Tom_L: zoom in near the ethernet plug
04:49 PM Tom_L: the manual shows it
04:49 PM _unreal_: http://store.mesanet.com/index.php?route=product/product&product_id=311
04:50 PM pcw_home: if this is a 7I96 the jumpers are W5 and W6 so W5 down W6 up is
04:51 PM Tom_L: pcw_home, the docs show W2 W3 for the ip
04:51 PM pcw_home: on a 7I96?
04:51 PM Tom_L: aww crap i got a 76
04:52 PM Tom_L: he said it was a 7i76
04:52 PM pcw_home: Yeah on a 7I76E the jumpers are on the top of the card near the Ethernet connector
04:53 PM _unreal_: pcw_home, I'm just trying to connect to it right now
04:53 PM _unreal_: should I be directly connecgted?
04:53 PM Tom_L: yes
04:53 PM _unreal_: currently the standard ethernet cable is going from the pc to the card
04:53 PM _unreal_: card is powered
04:53 PM pcw_home: Yes (unless you have multiple cards)
04:53 PM Tom_L: swap that jumper and it should be good
04:54 PM pcw_home: what does ip a report?
04:54 PM _unreal_: no ip
04:54 PM pcw_home: so the host static ip address must be setup
04:54 PM Tom_L: i think he just did that
04:55 PM _unreal_: I dont think I just did
04:55 PM pcw_home: well if "ip a" doesn't report something like, its not setup
04:56 PM Tom_L: i pointed him to this: https://gnipsel.com/linuxcnc/uspace/debian9-eth.html
04:56 PM Tom_L: to set the pc
04:56 PM pcw_home: man hm2_eth has instructions for setting this up via the interfaces file
04:57 PM pcw_home: not sure what Raspbian has as a GUI network mangler, that may be another option
04:57 PM Tom_L: i thought he was using a regular pc
04:57 PM _unreal_: why is there no IFCONFIG
04:58 PM pcw_home: its been replaced with "ip"
04:59 PM _unreal_: ip link show
04:59 PM pcw_home: you will need to use the "interfaces" way if the driver needs special setup (say if you have a intel MAC)
04:59 PM _unreal_: gives me no IP addresses
05:00 PM pcw_home: if you have say a Realtek MAC you can use the GUI
05:00 PM _unreal_: realtek yes and its onboard
05:01 PM pcw_home: so you should be able to use the network manager
05:01 PM _unreal_: cloned mac address?
05:01 PM _unreal_: looking at the GUI
05:01 PM _unreal_: eth0
05:01 PM pcw_home: not sure what the icon is for that its different depending on the Window Manager
05:02 PM pcw_home: so you create a new connection (IPV4, manual address)
05:02 PM _unreal_: i'M just using the standard lcnc install
05:03 PM pcw_home: right it should be the same for most Linux Systems
05:04 PM _unreal_: ok ipv4 settings?
05:04 PM _unreal_: ip address
05:04 PM pcw_home: if you are using on the 7I96, I would use something like
05:07 PM _unreal_: wtf
05:07 PM _unreal_: I go to ipv4 enter an ipaddress and the SAVE button grays out
05:07 PM _unreal_: I delete it and the save button turns green
05:08 PM pcw_home: probably some field missing
05:09 PM pcw_home: netmask? (should be /24 or
05:28 PM pcw_home: unmanaged usually means its setup in the interfaces file (so you can't manage it with the GUI)
05:28 PM _unreal_: so how do I kill that
05:29 PM pcw_home: you might check /etc/network/interfaces to see if eth0 is mentioned
05:33 PM pcw_home: its possible the installer setup a internet connection via the interfaces file, not sure
05:34 PM _unreal_: tom was telling me too mess with /etc/network/interfaces
05:34 PM _unreal_: delete the file?
05:35 PM _unreal_: or just erease any changes?
05:36 PM pcw_home: did you read the hm2_eth man page?
05:37 PM _unreal_: I'm only JUST starting to touch and setup the mesa.... I just finished everything I need JUST to make the machine move wires wise
05:38 PM _unreal_: I'm at square 1 software side wise
05:38 PM pcw_home: if eth0 is managed by the interfaces file you cannot change eth0 setup in the GUI
05:38 PM _unreal_: ok so HOW do I kill it or change the settings as needed
05:38 PM pcw_home: you dont want to just delete it
05:39 PM pcw_home: what does it have in it currently?
05:39 PM _unreal_: https://gnipsel.com/linuxcnc/uspace/debian9-eth.html
05:39 PM _unreal_: ahh
05:40 PM _unreal_: I had added more or less this minus address changes for my setup being eth0
05:40 PM _unreal_: auto enp2s0
05:40 PM _unreal_: iface enp0s25 inet static
05:40 PM _unreal_: address
05:40 PM _unreal_: netmask
05:40 PM pcw_home: Thats fine if your Ethernet device is enp0s25
05:40 PM _unreal_: I just removed all of that because that is what I added only eth0 instead of enp2...
05:42 PM pcw_home: If you have eth0 that should be right (dont remove the loopback)
05:43 PM pcw_home: if that in your interfaces file (check) you should have a static IP address (after a reboot or setting the interface down and up)
05:48 PM _unreal_: rebooting
05:50 PM Tom_L: _unreal_, i think you can just do apache restart
05:50 PM _unreal_: ok I'm pinging now
05:52 PM _unreal_: OK connected finally
05:52 PM _unreal_: the mesa utility sees the card
05:52 PM Tom_L: :)
05:53 PM _unreal_: pcw_home, so I'm setting up usign ve7it servo controllers all of my controllers are built everything is more or less setup. the only thinng I have not done yet is plug in the MAINS power to the driver boards and connected the main power transformer control line to the relay
05:53 PM _unreal_: so in other words I can not power the transformer and I have no line linking to the control circuit to enable the relay to power the main power relay
05:53 PM _unreal_: hehe
05:54 PM jymmmm: ifdown -a; ifup -a
05:54 PM jymmmm: no need to reboot
05:54 PM pcw_home: Yeah you can avoid a reboot by setting the interface down, then up
05:55 PM _unreal_: and.. if i dont waanaaa'
05:55 PM _unreal_: ?
05:55 PM _unreal_: ;)
05:57 PM pcw_home: note that if you use a 7I96 output to drive a relay, you need a flyback diode
05:57 PM _unreal_: pcw_home, what connection on the card should I likely use for my control signal to drive the transformer?
05:58 PM _unreal_: heh way ahead of ya
05:58 PM _unreal_: and I'm not even bothering with that I have a hardware driver
05:58 PM pcw_home: (and its best to test the flyback diode polarity by using a switch instedd of the 7I96
05:58 PM jymmmm: SpeedEvil: On the DC-DC buck/boost (combined) modules,... Do you know if they will ALWAYS output the set voltage (let's say) 16.8V no matter the INPUT voltage, be it 12VDC (car) or 24VDC (SW PSU)?
05:59 PM Tom_L: jymmmm, depends on the moon phase
05:59 PM SpeedEvil: yes, but they will generally have 1/2 the rated power if their maximum in is 24V.
05:59 PM SpeedEvil: Carefully read and understand the specs
06:00 PM SpeedEvil: Also, if you are charging it from a car, you need an undervoltage cutout at 10.8V or so to not damage the battery
06:00 PM SpeedEvil: The car battery
06:00 PM SpeedEvil: Or a bit higher if you waqnt the car to start
06:00 PM _unreal_: I dont need a fly back diode I'm using a special interface chip that is opto isolated
06:00 PM jymmmm: SpeedEvil: More like 12V, I was JSUT gonna say that =)
06:01 PM _unreal_: https://www.mouser.com/ProductDetail/ON-Semiconductor-Fairchild/MOC3041M?qs=wU4Yabi1dYmXkJxzCoZjyQ%3D%3D
06:02 PM jymmmm: SpeedEvil: are there low voltage cutoff modules that you know of?
06:03 PM SpeedEvil: the ones tagged 'solar' often have an undervoltage cutoff
06:03 PM _unreal_: pcw_home, so I need to start getting some of the basic settings adjusted in this...
06:04 PM SpeedEvil: https://www.aliexpress.com/item/4000872851833.html Like this.
06:04 PM SpeedEvil: I do not know of any buck-boost ones
06:07 PM _unreal_: pcw_home, just came across an error
06:08 PM _unreal_: clicking though the options in the 7i96 software. I clicked on INFO. clicked on CPU told me my computers CPU. clicked on the network and the software crashed with errors
06:08 PM _unreal_: lspci is not installed interesting
06:09 PM _unreal_: part of the error report is no such file/directory LSPCI
06:09 PM jymmmm: SpeedEvil: I'm fine with a seperate module all together jsut for the 12V side
06:10 PM jymmmm: https://www.youtube.com/watch?v=S_f5fLLssA4
06:10 PM _unreal_: My cpu is a G1840 2.8ghz
06:12 PM jymmmm: SpeedEvil: $2.70 https://www.aliexpress.com/item/33038590384.html
06:18 PM pcw_home: _unreal_ are you using pncconf?
06:19 PM pcw_home: I think JTs setup utility may have a number of things that are not up-to-date
06:19 PM Tom_L: he was using jt's config tool
06:21 PM XXCoder: cooool https://youtu.be/RzkVWzClJAM
06:23 PM jymmmm: SpeedEvil: I'm not sure what this is, but looks fun https://www.aliexpress.com/item/32914820935.html?
06:25 PM SpeedEvil: In principle that might be something with a charger connection and a load connection and disconnect it if the voltage rises too high or falls too low
06:25 PM rene_dev_: andypugh oh, you did buy the grinder?
06:26 PM andypugh: Yes.
06:26 PM andypugh: It’s very nice. I suspect that the newer ones are more evolved, but not as nice.
06:26 PM XXCoder: yo
06:26 PM SpeedEvil: :)
06:28 PM andypugh: One feature mine lacks is the button to disable the angle limits. The manual for the same model mentions it, but it musy have been introduced between mine being made and the manual being printed.
06:29 PM rene_dev_: my china clone has it
06:29 PM andypugh: (If I need to grind dovetails it is only two nuts and a screw to take the stop plate out)
06:29 PM andypugh: Yes, I think it was introduced in a about 1955 :-)
06:34 PM jymmmm: XXCoder: that's cool
06:34 PM XXCoder: yeah
06:34 PM XXCoder: plating anything
06:36 PM _unreal_: I dont know what pncconf
06:36 PM Tom_L: _unreal_, should be on the cnc menu
06:37 PM rene_dev_: andypugh nice video! great idea with the printed collet
06:38 PM andypugh: Yes, I was quite pleased with that idea. You have to keep the work cool or the PLA softens, of course.
06:39 PM XXCoder: watching video
06:40 PM jymmmm: SpeedEvil: https://i.imgur.com/Va79MWp.png
06:40 PM SpeedEvil: unsure. Not awake.
06:41 PM XXCoder: ACME thread tapping eh
06:44 PM XXCoder: whats second grinding do? (first is sharpening cutting edges but second?
06:44 PM XXCoder: adding relief?
06:44 PM andypugh: Yes, and taking off any decarburised layer.
06:45 PM andypugh: If I had machined the taper in releieving-lathe mode that might not have been necessary.
06:45 PM XXCoder: fun video
06:48 PM _unreal_: Tom_L, I need to setup the 7i96 with the 7i96 software first right.....
06:48 PM _unreal_: like setting what io's do what
06:49 PM Tom_L: i've never used pncconfig but i suppose so
06:49 PM Tom_L: it will give you a headstart on the config files
06:50 PM Tom_L: eventually you will be hand editing them once you get the basic done
07:40 PM _unreal_: i just need to get the machine moving
07:40 PM _unreal_: then I can work on tuning
07:52 PM Tom_L: _unreal_, did you copy any bitfiles over?
07:53 PM Tom_L: may need .xml for pncconf
07:54 PM Tom_L: i was looking at pncconf just a bit here
07:57 PM pcw_home: You don't need the xml (pncconf knows about the 7I96)
07:58 PM Tom_L: i just opened it and it said i didn't have any files in /lib/firmware/hm2
07:58 PM Tom_L: that's what made me wonder
07:58 PM Tom_L: does he need his bit file copied there?
08:02 PM CaptHindsight: pcw_home: do you recall a stepper controller IC that you mentioned a few months back...
08:03 PM CaptHindsight: I think that it also had a stegen
08:03 PM CaptHindsight: possible NXP or ST
08:05 PM Thorhian: Is there any decent CAM software out there that doesn't cost an arm and leg (and sometimes kidney) that you guys know of besides Fusion360? Autodesk's changes to their startup license basically makes it a no-go.
08:05 PM net|: https://www.youtube.com/watch?v=UJn_x6jCsPI
08:05 PM CaptHindsight: Thorhian: 3-axis?
08:06 PM Tom_L: decent might cost an arm or let
08:06 PM Tom_L: leg
08:06 PM Thorhian: Yeah. \
08:06 PM Thorhian: 3 axis CaptHindsight
08:07 PM CaptHindsight: besides pycam and heeks?
08:07 PM Thorhian: Otherwise I'm going to have to learn a lot of math and the code base for FreeCAD.
08:07 PM Thorhian: Is Pycam any good? Haven't tried it yet really.
08:08 PM CaptHindsight: i think Seb keeps it alive
08:09 PM CaptHindsight: and there is some 3 axis for Blender CAM
08:09 PM CaptHindsight: https://github.com/SebKuzminsky/pycam
08:10 PM Thorhian: Yeah I know of Blender CAM, but it's heavily outdated from what I know.
08:10 PM CaptHindsight: yeah i looked at writing some 5-axis CAM a few months ago
08:10 PM pcw_home: CaptHindsight ST01
08:11 PM CaptHindsight: which one do you expand? pycam, blender or freecad?
08:11 PM CaptHindsight: pcw_home: thanks, was just looking at it but my memory thought it was something else
08:12 PM Thorhian: Which one do I expand CaptHindsight ?
08:12 PM pcw_home: I have a board for it but have not gotten around to assembling it
08:12 PM Thorhian: I don't yet.
08:13 PM CaptHindsight: Thorhian: it's a philosophical question at this point
08:13 PM CaptHindsight: which is the most worthwhile to expand upon
08:14 PM Thorhian: I have used Blender plenty, but for precision machining I'd say that FreeCad is a pretty good investment but I'm honestly not sure. I haven't looked at how they are structured or how far along they are in terms of code infastructure for expanding their CAM capabilities. Personally I
08:15 PM CaptHindsight: pcw_home: I got to thinking about low cost servos for low cost robot arms, closed loop stepper vs BLDC
08:16 PM Thorhian: at first glance would want to expand FreeCAD, purge it of python code for various pieces of it's Path workbenches code.
08:16 PM XXCoder: ich was working on cam sim in freecad when he died
08:16 PM XXCoder: so im not sure if its done yet not not
08:17 PM pcw_home: steppers may be more suited because less gearing is needed (well unless you are using harmonic drives or some such)
08:17 PM CaptHindsight: was partly done
08:17 PM CaptHindsight: pcw_home: it would use harmonic drives
08:17 PM Thorhian: I'm not fond of an entire simulation and CAM system programmed in python, especially for performance reasons.
08:17 PM XXCoder: linuxcnc is also using pythion, gui mostly maybe? dunno
08:18 PM pcw_home: in that case BLDC might be better
08:18 PM CaptHindsight: Thorhian: plus with Python changing so much do you risk having obsolete Python in a few years
08:18 PM Thorhian: From what I know LinuxCNC isn't entirely python. There is plenty of C and Perl as well isn't there lol?
08:18 PM XXCoder: python 2 lasted a long time but expred while ago too
08:18 PM CaptHindsight: pcw_home: quieter
08:19 PM Thorhian: And yes CaptHindsight, FreeCAD has a good amount of Python2 in it still doesn't it?
08:19 PM CaptHindsight: XXCoder: long time to me is 20-30 years :)
08:20 PM CaptHindsight: for many devs it's 3-5 years
08:20 PM XXCoder: true lol industral want longer tern stability
08:20 PM Thorhian: Industry tends to be kind of dumb for how long they want their software to last (20-30 years).
08:21 PM Thorhian: Without major updates anyways.
08:22 PM jymmmm: battery backed 120VAC lightbulb... https://www.amazon.com/Emergency-YKDtronics-Rechargeable-Hurricane-Equivalent/dp/B07SSFYLS6/
08:22 PM XXCoder: would it turn on when i hit switch? heh
08:23 PM jymmmm: It turns on automatically during a outage
08:23 PM jymmmm: I think
08:23 PM Thorhian: But yeah, I tried using FreeCAD today to generate some tool paths and it was kind of touch and go.
08:24 PM Thorhian: The adaptive tool path generator produced very similar paths as Fusion360, but it created a little notch of a path to ruin the part :/
08:24 PM jymmmm: XXCoder: Here's the GE version https://www.amazon.com/GE-Lighting-93099986-Battery-Backup/dp/B07NNS5B7S
08:25 PM XXCoder: jymmmm: i suspect it detects floating (no ground)
08:25 PM jymmmm: XXCoder: if you unplug the lamp, it doens't turn on. floating something, yeah =)
08:27 PM jymmmm: XXCoder: We keep the light above the kitchen ink on 24/7. I JUST replaced the florescent fixture with LED bulb yesterday. Was planning on shoving a UPS up there, and plug the bulb into that. But this UPS doens't like my generator. So maybe this might be a nice alrterative
08:27 PM XXCoder: thats weird thor
08:27 PM jymmmm: sink*
08:27 PM XXCoder: jym yeah sounds nice
08:27 PM XXCoder: wonder if theres low wattage version
08:28 PM jymmmm: IT's only 5W @ 120VAC
08:28 PM CaptHindsight: Thorhian: I forget, what if Freecad written in?
08:28 PM flyback: <pcw_home> (and its best to test the flyback diode polarity by using a switch instedd of the 7I96
08:28 PM CaptHindsight: if/is
08:28 PM flyback: or use a transorb diode or whatever they are called
08:28 PM XXCoder: jym no im talking about lumens sorry
08:28 PM flyback: voltage triggered that go both ways like veegee
08:28 PM XXCoder: something like 10w light (100 lumens)
08:28 PM jymmmm: XXCoder: Look at the pics, one say it's diminshed light on battery
08:29 PM CaptHindsight: Thorhian: https://ezcam.com/
08:29 PM flyback: THOSE are very cool shit btw
08:29 PM flyback: surge diodes
08:29 PM pcw_home: yeah a bi-di transorb is safer if you don't test first :-)
08:29 PM jymmmm: XXCoder: oh, you want a "nghtlight"?
08:29 PM flyback: no you should test it
08:29 PM XXCoder: basically, for living room
08:29 PM flyback: low current so you don't heat it up
08:29 PM XXCoder: so it can leave lit 24 hours a day
08:29 PM flyback: ugh last time I was at my sisters 5 hrs cleaning her 24 yr old a/c compressor it was all gummed up
08:29 PM flyback: tonight
08:30 PM flyback: 3 hrs cleaning the electronic air filter which was totally blocked and totlaly DEAD
08:30 PM CaptHindsight: Thorhian: Freecad is mostly C++
08:30 PM jymmmm: XXCoder: $24 at Costco... https://www.amazon.com/Sunbeam-SunbeamLed3pk-SunbeamLedLight-Night-Light/dp/B07HVQ6LXG
08:30 PM flyback: told her to just buy a box filter same size and throw away the elctronic air cleaner
08:30 PM flyback: it's fried after 26 yrs
08:30 PM Thorhian: CaptHindsight: Yep, I know.'
08:30 PM flyback: ugh
08:30 PM XXCoder: lol
08:30 PM * flyback exchausted
08:30 PM flyback: but the compressor and furnace still run like a champ
08:31 PM flyback: pcw_home, surge diodes don't degrade if you don't excess their max rating or allowed to overheat
08:31 PM flyback: unlike movs or gas discharge
08:31 PM flyback: so you can test them safely
08:32 PM flyback: doesn't burn up life cycles
08:33 PM flyback: they are great for the fact they can clamp long enough to pop a fuse to stop a sustained over voltage situaation
08:34 PM pcw_home: I just meant test in reference to getting flyback diode polarity right
08:34 PM flyback: well they are both polarities :)
08:34 PM flyback: at least some types
08:34 PM flyback: which is why they have to be voltage triggered or they would be a dead short
08:35 PM Thorhian: BTW CaptHindsight, there is a ton of python in FreeCAD as well. Maybe around a third or more of it's git repo is Python.
08:35 PM pcw_home: And are faster release than flybacks
08:35 PM flyback: normal tvs diodes are one way but you can get ones that are 2 in a package
08:35 PM flyback: one each direction
08:36 PM flyback: I guess for some signal type connections they have distortion issues so not idea for every situation
08:36 PM CaptHindsight: $3k USD https://automata.tech/
08:36 PM pcw_home: which may be a double edged sword since the inductive energy is dissipated in the TVS, not the relay/solenoid coil
08:36 PM flyback: but defintely power rails, coil snubbers etc they are great
08:37 PM flyback: I also love explosive fuses
08:37 PM flyback: but those aren't consumer products
08:37 PM flyback: :)
08:37 PM pcw_home: Unfortunately not very good for 5V rails
08:37 PM flyback: if you ever watched a transformer short video and it ends with a bang
08:37 PM flyback: that's the explosive fuse going "FUCK YOU BUDDY"
08:37 PM flyback: :P
08:37 PM roycroft: no spoilers, please :)
08:38 PM flyback: they detonate to ensure the connection can't hang on or the arc remain
08:39 PM flyback: I imagine when someone first proposed them, he got funny looks
08:39 PM flyback: till they saw them in action
08:40 PM flyback: https://www.youtube.com/watch?v=ATEWXsMawMg
08:41 PM flyback: I think they were old and they had to replace them
08:42 PM flyback: forget that vieeo
08:42 PM flyback: this is better
08:42 PM flyback: https://www.youtube.com/watch?v=ATEWXsMawMg
08:45 PM flyback: https://www.youtube.com/watch?v=yi1Uh7BByQA
08:48 PM flyback: they aen't perfect and sometimes fail but they have a very good track record