#linuxcnc Logs
Apr 18 2020
#linuxcnc Calendar
01:41 AM Deejay: moin
02:05 AM veegee: Hmmm having a tough time figuring out what the wire gauge is for the cable supplied with my welder
02:05 AM veegee: it's stranded pure copper, about 8-9mm in diameter
02:06 AM veegee: It's not specified on the insulation. There's just some weird looking foreign language characters like those fuckers expect the world to speak their shit
02:08 AM veegee: AWG is another retarded system of measurement. Why can't we just use diameter and mm^2? It's like the american fuckers /try/ to create the most convoluted measurements system to get a laugh out of everyone struggling
02:09 AM XXCoder: its funny how we set awg to grow in size with numbers in wrong direction
02:09 AM XXCoder: its annoying
02:10 AM XXCoder: https://www.picwire.com/wp-content/uploads/images/content/technical/paper9table1.gif
02:10 AM XXCoder: its why we have size 000 lol
02:11 AM XXCoder: i guess nobody expected we would need such a big cables back then
05:00 AM jthornton: 12.5428571428 stone this morning!
05:00 AM XXCoder: wow you can weight atomic weight
05:00 AM jthornton: 35°F
05:04 AM jthornton: hmm not an exact number, when you multiply by 14 it comes out 175.59999999999999
05:05 AM XXCoder: lol
05:06 AM XXCoder: youre in pretty good shape
05:06 AM jthornton: getting there, my target is 12 stone or 168
05:08 AM XXCoder: i need to lose some weight but dunno how lol
05:09 AM XXCoder: honestly its not my goal
05:09 AM jthornton: it's simple
05:09 AM XXCoder: my goal is "healthier" weight dont really come into it
05:49 AM p0g0: diet...
05:49 AM p0g0: or, induce food allergies...
05:50 AM p0g0: I can send you some Eastern Cone Nose Blood Sucking Beetles if you prefer the latter strategy.
07:21 AM Tom_L: morning
07:22 AM _unreal_: hello
08:19 AM Tom_L: 35°F currently
08:29 AM jthornton: we are up to 39°F
08:30 AM Tom_L: gonna get chickens this weekend or did you already?
08:31 AM jthornton: they ship on the 29th
08:35 AM zef`_ is now known as zef
08:42 AM jthornton: hmm got nginx and php setup and working on the coop deux rpi
09:02 AM skunkworks: heh - we use nginx at work
09:28 AM JavaBean|new is now known as JavaBean
09:38 AM _unreal_: its like 80 here
09:38 AM _unreal_: :)
09:39 AM _unreal_: FYI any one in the USA meat production plants are shutting down they are intentionally creating a meat shortage because buying has been low. so there is going to be a RUN on beef/pork/ and i'm sure poultry not long after.
09:59 AM gregcnc: apparently frozen pizza is going to run out soon too
10:02 AM Tom_L: damn. what are we gonna do?
10:03 AM gregcnc: just keep watching tv
10:03 AM Tom_L: keep?
10:03 AM gregcnc: yeah, make sure you are doing as they say
10:10 AM jthornton: Meat processing plants are closing due to covid-19 outbreaks
10:10 AM the_ment: jthornton: that's what they want you to think
10:11 AM jthornton: I don't care what they want me to think
10:13 AM gregcnc: WA is starting back up so it will be interesting to see if it comes back
10:23 AM pcw_home: The bad thing is if you dont reduce R0 by a huge amount you get a long tail (so if we have 37K dead now the total would be 2x if it reduces at the same rate it increased, but it appears the downslope is slower)
10:25 AM gregcnc: i don't think they have any idea how many people have had it already
10:25 AM _unreal_: well as I said the major mfg's are making an artificial supply shortage to keep the panic spending up do to low normal sales. and meat is something that WILL run out fast and take a long time to recover
10:25 AM _unreal_: off to go spend a small fortune :)
10:25 AM gregcnc: people survive without meat?
10:26 AM pcw_home: If you work backwards from S Koreas 0.37% CFR that suggests about 9 million infected in the US about 3 weeks ago
10:26 AM Tom_L: good i live in a meat producing state then
10:26 AM jymmmm: gregcnc: "back up? ???
10:27 AM gregcnc: you don't think it's much more here, SK was prepared and took action
10:28 AM pcw_home: Right so I trust S Koreas CFR numbers the most
10:29 AM gregcnc: but how does that relate to us?
10:29 AM Tom_L: _unreal_, it's all good.. your stocks should cover it
10:30 AM pcw_home: You can work backwards from the US death rate (and the average time to death) to estimate the real infection rate in the US
10:30 AM gregcnc: they don't know how many asymptomatic cases exist, do they?
10:31 AM pcw_home: SK was testing enough to know that
10:31 AM gregcnc: random testing?
10:32 AM pcw_home: no, contact testing
10:32 AM gregcnc: people theoretically exposed?
10:32 AM pcw_home: yes
10:32 AM pcw_home: symptomatic or not
10:33 AM gregcnc: how many were asymptomatic, and why are they just guessing here?
10:34 AM gregcnc: https://spectator.us/stanford-study-suggests-coronavirus-more-widespread-realized/
10:34 AM pcw_home: contact tracing is not guessing
10:35 AM gregcnc: contact testing in the US?
10:35 AM pcw_home: AFAIK that has not been done in a serious way yet
10:35 AM gregcnc: right
10:35 AM pcw_home: we are about 41st in testing
10:36 AM gregcnc: little idea about how our climate/population/culture/ etc comes into play
10:37 AM pcw_home: just saying the most accurate CFR we have is likely from SK
10:37 AM pcw_home: so you can estimate the infection rate from that
10:39 AM jymmmm: pcw_home: New cases are starting to level out some... https://www.latimes.com/projects/california-coronavirus-cases-tracking-outbreak/
10:40 AM pcw_home: Yes but places that have dealt with this longer show a long tail in the downslope which is concerning
10:41 AM jymmmm: But NOT climbing == GOOD, no matter the duration
10:41 AM pcw_home: I think California was very lucky to have instituted social distancing before widespread distribution
10:42 AM pcw_home: (CA could have been NY if they waited a week or so)
10:43 AM jymmmm: WE could all get past this quicker if we just implement a face licking policy, just sayin =)
10:44 AM pcw_home: yep though with a 0.37% CFR that would result in about 1.2M deaths
10:45 AM jymmmm: But then there would be frozen pizza to go around, I'm okey with that
10:46 AM jymmmm: more*
10:46 AM pcw_home: Are people hoarding frozen pizza now?
10:47 AM gregcnc: demand has increased 190% supposedly there isn't enough capacity
10:47 AM jymmmm: IDK, I always keep about 4 in the big freezer
10:47 AM jymmmm: But I cut them in half, so that's like 8
10:49 AM jymmmm: pcw_home: how are you on feed though?
10:49 AM pcw_home: np here
10:49 AM jymmmm: k
10:50 AM pcw_home: We can likely survive without frozen pizza
10:50 AM Tom_L: just increases the TP need
10:50 AM jymmmm: It's easy with a small salad
10:51 AM jymmmm: Though, I need more chicken recipes
10:51 AM pcw_home: Netherlands shows a 3% infection rate now (close to my 9 million on US estimate)
10:51 AM * jthornton hasn't eaten a frozen pizza in a long long time
10:52 AM jymmmm: jthornton: OH, the honey butter chicken, try adding a tbls of soy sauce sometime
10:52 AM jymmmm: jthornton: gives it a bit of a "deeper" flavor.
10:53 AM gregcnc: MSG does that
10:53 AM jymmmm: I always add extra toppings and cheese, so not too bad at all actually
10:53 AM jymmmm: gregcnc: never used MSG
10:53 AM pcw_home: Got to get our bean trellis up (really pleased that scarlet runner beans are perennial here)
10:53 AM gregcnc: lol
10:54 AM jymmmm: pcw_home: is that a green been variant?
10:55 AM pcw_home: Yes
10:55 AM pcw_home: MSG: https://www.youtube.com/watch?v=DYSQd_JsltQ
10:57 AM jymmmm: k
10:57 AM gregcnc: ever eating something and you're like wow this is great, but it really isn't? MSG
10:58 AM jymmmm: gregcnc: lol, I'm sure I've had it, just never actually used it in cooking is all
10:58 AM SpeedEvil: gregcnc: salt
10:58 AM gregcnc: your soy sauce
10:58 AM jthornton: soylent green
10:58 AM jymmmm: IT"SS PEOPLE
11:01 AM jymmmm: Got Mask? https://i.imgur.com/TK8VbvO.jpg
11:02 AM gregcnc: proper mask https://www.reddit.com/r/interestingasfuck/comments/fy0ah5/a_special_effects_artist_made_himself_a_mask_for/
11:07 AM jymmmm: gregcnc: I'll stick to a bandana if it got to that =)
11:11 AM gregcnc: anyone run pull behind reel mowers? toro jacobsen?
11:37 AM gregcnc: jymmmm found another mask https://www.instagram.com/p/B-68k7pBMrj/
11:44 AM skunkworks: pcw_home: how fast can you count encoders?
11:49 AM jymmmm: gregcnc: Yeah, ppl are making their own masks now,
11:50 AM jymmmm: just toss in the washer and you're good to go
12:16 PM gregcnc: toolpost turret for unimat? https://www.ebay.de/itm/223980708026
12:18 PM Tom_L: cute
12:59 PM rue_mohr: hmm, a chuck holder....
01:00 PM rue_mohr: that might be a good evening project
01:03 PM andypugh: skunkworks: Why do you care how fast PCW can count encoders? (I would guess no more than 5 Hz)
01:27 PM _unreal_: mmm beer
03:29 PM Thorhian: So the BT30 taper holders have a draw bar thread of M12. Would it be okay if I just bought an M12 threaded rod or buy a specificly made M12 drawbar?
03:59 PM _unreal_: ve7it, hi
04:05 PM ve7it: _unreal_, hey man... just in from cutting the grass
04:09 PM justan0theruser is now known as justanotheruser
04:09 PM skunkworks: andypugh: I really should re-read my writing...
04:11 PM skunkworks: Because at 10k rpm - and 20,000 counts per rev (5000 line) I don't think I could use it as my main encoder..
04:45 PM _unreal_: skunkworks, to may ticks ;)
04:45 PM _unreal_: too many ticks? :)
04:45 PM _unreal_: skunkworks, or just gear it down
04:48 PM Deejay: gn8
04:55 PM rmu|w: skunkworks: thats 3,3 MHz
04:56 PM andypugh: 3,3Mhz is fine with the Mesa filter off
04:56 PM rmu|w: skunkworks: the 7c80 counts up to 10MHz (the manual is just open)
04:58 PM rmu|w: the smart serial uarts are running at 2,5mbps, and uarts usually use 8 times or 16 times oversampling
04:59 PM andypugh: The uarts are not relevant, unless you are just talking about hardware speed
05:03 PM rmu|w: just talking about hardware speed. if it can talk async serial at 2.5mbps it should be able to count at 3.3mhz
07:42 PM _unreal_: anything new?
08:22 PM _unreal_: wtf everything on the TV is pitty party tv
08:25 PM Thorhian: Is anyone here experienced with drawbars?
08:26 PM XXCoder: hey dunno heh but someone may evenually answer. pretty slow day it looks like,.
08:27 PM Thorhian: My BT30 spindle didn't come with a drawbar. The BT30 taper tool holders use an M12 thread so I was just wondering if using a simple threaded rod was okay for keeping a tool holder in the spindle lol
08:28 PM XXCoder: bt30 lol it happens to be same one as I bought for demonsation uses, show kids and such
08:28 PM XXCoder: too bad this year event was cancelled
08:33 PM Tom_L: https://www.machsupport.com/forum/index.php?topic=22080.460
08:34 PM Tom_L: the idea is to use retention knobs
08:34 PM Tom_L: that's what makes them useful for ATC
08:34 PM Tom_L: there are various styles
08:34 PM Tom_L: some have balls others have finger grips
08:37 PM Tom_L: https://www.stonecontact.com/products-680509/cnc-pull-stud-grippers-for-iso30-hsk63-bt30-atc
08:37 PM Tom_L: finger style
08:40 PM Thorhian: Tom_L: My spindle doesn't have any sort of ATC system to grab a retention knob, I have to use a plain drawbar setup for not.
08:40 PM Thorhian: now@
08:41 PM XXCoder: that site shows you how to make one
08:41 PM XXCoder: pretty cool
08:41 PM XXCoder: looks like lathe is a requirement
08:42 PM Tom_L: i new that, that's why i linked to the build
08:43 PM Tom_L: a few here have made them, i have not
08:45 PM _unreal_: cant wait till my new parts come
08:45 PM _unreal_: :(
08:46 PM Thorhian: Is this sort of thing required Tom_L? I would like to do this at some point but not in the initial build. I don't have access to lathe yet.
08:46 PM _unreal_: Thorhian, you can always offer $$
08:47 PM _unreal_: I'm sure someone may take you up on giving aid ;)
08:47 PM Thorhian: Lol unreal.
08:51 PM Thorhian: And wow that seller even makes HSK63 grabbers...
08:52 PM Tom_L: how much are they?
08:53 PM Thorhian: No clue, you have to send them a message. Plus they are in Shenghai. I'll look for some of those bt30 pull stud grippers.
08:54 PM XXCoder: priceless stores annoy me. i usually assume it IS priceless for me and move on
08:55 PM Tom_L: also, pull studs come in different lengths so make sure you find the ones you need
08:56 PM Thorhian: Oh fun...
08:56 PM Tom_L: no, the fun is if i didn't tell you that
08:57 PM Thorhian: XD
08:57 PM XXCoder: its "fun" at work. we have what 7 different pull tabs for cat30
08:57 PM XXCoder: doosan type, ps95, fadal, few others
08:58 PM XXCoder: used to have 2 cat50 type, but one machine was sold off
08:58 PM Thorhian: Individual ones of the finger type on ebay tend to be in the $140 - $190 range.
08:58 PM XXCoder: 3 other types that dont have a taper and pulltab
08:59 PM Tom_L: i'm pretty sure andypugh made his
09:00 PM Thorhian: I also need a furnace for heat treatment to make sure any homemade one doesn't fall apart/blow up in the spindle.
09:00 PM XXCoder: whats your budget like?
09:00 PM XXCoder: theres $700 "auto bake" system which is quite cool
09:00 PM gregcnc: for a drawbar?
09:01 PM XXCoder: drawbar' be too big for even largest one
09:01 PM XXCoder: Bar Z Industrial Hotshot 360 btw
09:01 PM Thorhian: For the gripper part of the drawbar it seems. There was some comments about it in the build link from Tom.
09:02 PM gregcnc: oh, i thought you were using a simple drawbar
09:03 PM Tom_L: i think that is his initial plan
09:04 PM Thorhian: Yeah, that is the initial plan. Wouldn't mind making or finding a gripper later.
09:05 PM Thorhian: I was just wondering if some M12 threaded rod would as a drawbar lol
09:05 PM Thorhian: would work as a drawbar*
09:06 PM gregcnc: probably be fine you want maybe 500-700 Lb force for 30 taper I think
09:07 PM pcw_home: skunkworks: non-muxed encoders can have the sample clock set all the way to 100 MHz so even with filter on (150 ns filter) that's about 12 MHz
09:08 PM Thorhian: Oh wow. What would be the proper way of ensuring that hold the taper with the rod with that kind of force?
09:09 PM gregcnc: https://www.haascnc.com/service/troubleshooting-and-how-to/reference-documents/drawbar-force-reference-table.html
09:09 PM gregcnc: maybe a bit more, but for 2 HP 500Lb should be plenty
09:09 PM gregcnc: torque it?
09:10 PM Thorhian: So use a torque wrench lol?
09:11 PM Thorhian: But yeah I won't ever be going over 8K RPM lol.
09:11 PM gregcnc: faster is actually less force
09:13 PM Thorhian: Really? I thought more centripetal force would require more force to keep it in place?
09:14 PM gregcnc: spindle bore opens up at speed and excessive force would pull the tool in further, leads to problems
09:14 PM gregcnc: doesn't take much torque to get 1000Lb on an M12 thread
09:16 PM Thorhian: I better not cheap out totally on the rod then lol.
09:27 PM Tom_L: gregcnc, interesting table
09:28 PM Tom_L: no wonder knobs pop every so often
09:30 PM norias: howdy
09:34 PM XXCoder: tom apparently tapers can slowly expand if youre constantly working on hard metals
09:34 PM XXCoder: chev at work is down due to that
09:34 PM XXCoder: apparently what they do is use grindstone and spindle spins while moving down into it and moving in taper direction
09:34 PM XXCoder: so its re-ground to nice taper shape agaibn
09:35 PM XXCoder: in least, till it reaches point where taper isnt fully touching when toolholder hits spindle surface
09:35 PM XXCoder: then you would need to replace that assembly
09:36 PM Tom_L: right
09:37 PM XXCoder: i found that interesting when I learned of it
09:38 PM norias: about spindle tapers wearing?
09:38 PM norias: did it bellmouth?
09:38 PM XXCoder: yeah and how to regrind
09:38 PM norias: did ya'll do it in house
09:38 PM norias: or call someone?
09:38 PM XXCoder: no idea what term is but I guess so. bottom is wider than orginial
09:38 PM XXCoder: dunno, they havent fixed it yet
09:38 PM norias: yeah, bellmouthing
09:39 PM norias: best bet is usually to get someone in to do it
09:39 PM norias: unless you definitely know all the tricks
09:39 PM norias: or the machine isn't that critical
09:39 PM XXCoder: did my discription of repair seem correct?
09:39 PM sync: you can also use the spindle as a lathe
09:39 PM XXCoder: that machine wull never stop running
09:39 PM norias: i missed most of your description
09:39 PM sync: and just put a inside turning tool in the vice
09:39 PM XXCoder: or rather, run out of jobs. we have 2 "infinite parts" jobs ion that one
09:40 PM XXCoder: oh a second
09:40 PM norias: i've never done it, but people that have done it
09:40 PM XXCoder: apparently what they do is use grindstone and spindle spins while moving down into it and moving in taper direction
09:40 PM XXCoder: so its re-ground to nice taper shape again
09:40 PM norias: tell me that doing it in the right order, speed, etc
09:40 PM norias: is what's critical
09:40 PM norias: so that's correct at the right temperature
09:40 PM norias: and you don't take too much off
09:41 PM XXCoder: heh i wouldnt ever do it myself
09:41 PM XXCoder: im at middle between machinist and operator :P
09:41 PM norias: i know a guy who's building his own cnc
09:41 PM norias: he made his own spindle
09:41 PM norias: heat treated it
09:41 PM norias: ground the taper in
09:41 PM Tom_L: that would be nice if you have the equipment
09:42 PM norias: yeah, i guess he was allowed to do it as a side project at work
09:42 PM norias: i'm jealous, but i have other shit to accomplish
09:42 PM norias: the big thing i'm up against is CMM's
09:42 PM norias: like, wtf
09:43 PM norias: someone needs to make the tormach of cmm's
09:43 PM norias: so i can fuck with it
09:43 PM Thorhian: CMM?
09:44 PM Tom_L: coordinate measuring machine
09:44 PM norias: coordinate measuring machine
09:44 PM XXCoder: cmm is amazing
09:44 PM Tom_L: :)
09:44 PM XXCoder: we have 3 useless ones at work lol
09:44 PM norias: i need to mess around with an automated one
09:44 PM norias: why are they useless?
09:44 PM XXCoder: it was for nbew infinity parts job, and we utterly failed
09:44 PM Thorhian: What are they used for?
09:44 PM XXCoder: and we lost job
09:44 PM Tom_L: Thorhian, accurately measuring parts
09:44 PM XXCoder: (also why we got thousands of alum blocks ;)
09:44 PM Tom_L: to certification standards
09:45 PM Thorhian: Ah I see.
09:45 PM XXCoder: not really thousands but lots blocks
09:45 PM XXCoder: yep, it was very very complex parts
09:45 PM XXCoder: glancing over it it has like 40 features
09:45 PM norias: no one is doing open source metrology software
09:45 PM norias: that i can find
09:45 PM XXCoder: mount screws, grooves, indentions, holes, etc
09:45 PM XXCoder: lots pockets tooo
09:45 PM norias: i'd love to do it, but it feels like a distraction
09:46 PM XXCoder: norias: theres lots of 3d scanner projects I wonder if can use those to turn points into 3d object
09:46 PM norias: ugh, i feel like those wouldn't be as good
09:46 PM XXCoder: agreed
09:46 PM norias: but... i don't know that for sure
09:46 PM Thorhian: Open Source CAM software needs some love lol. Also, point cloud data could converted to a mesh.
09:47 PM norias: yeah, but how good?
09:47 PM norias: i dunno
09:47 PM XXCoder: its impossible to be as good as million dollar developed progra
09:48 PM norias: open source CAM is pretty much a dream world thing in my mind
09:48 PM unterhaus: in my experience, a program that cost a million dollars wouldn't even run long enough for it to be considered a crash
09:48 PM XXCoder: nor theres a few now
09:48 PM XXCoder: including freecad. not very good but...
09:48 PM norias: yeah, but they are so simplistic
09:48 PM XXCoder: ich was working on some features of it when he died
09:48 PM norias: even fusion 360 with the weight of autodesk behind it
09:48 PM XXCoder: mainly sim
09:48 PM norias: is a turd
09:49 PM Thorhian: The Path workbench is okay on FreeCad but its not as good as Fusion or especially mastercam.
09:49 PM Wolf__: free cad/cam that is on level with solid works + solid cam is a nice dream… wont ever see that though lol
09:49 PM XXCoder: i have hard time understanding Path on freecad, but then i wasnt really working on it.
09:49 PM norias: there's just too few people who can do that stuff well
09:50 PM norias: well, my goal is to be one of those people
09:50 PM norias: and i'm trying to learn it
09:50 PM norias: and what a pain
09:50 PM Thorhian: Lots of math lol
09:50 PM norias: computational geometry is no joke
09:51 PM Wolf__: I’m stuck using sheetcam @ my shop on the plasma table, simple as hell and annoying to use
09:52 PM norias: there's a used CMM within 30 miles of me on ebay
09:52 PM norias: $1,000
09:53 PM norias: of course, no software
09:53 PM norias: bah
09:53 PM Thorhian: I'm guessing the software costs more than the machine lol?
09:53 PM norias: yeah
09:53 PM Wolf__: linux cnc it lol
09:53 PM Thorhian: XD
09:53 PM norias: i wonder if you can map the measurement error in a cnc mill
09:54 PM norias: by like generating test articles and comparing them to something measured on a cmm
09:54 PM norias: i.e. validate a cnc as a measurement device
09:54 PM Wolf__: should be able to
09:54 PM norias: maybe
09:54 PM Wolf__: pretty much build a screw map
09:54 PM norias: eh, there's more to it than just that
09:55 PM norias: you need to know temps and what not
09:55 PM XXCoder: nor theres high precision supported sphere for testing probe and sizing sensor
09:55 PM norias: oh... good point
09:55 PM norias: so, if you run some calibration program
09:55 PM norias: before each measurement ...
09:56 PM XXCoder: https://www.precisionballs.com/All_Characterization_Spheres.php
09:56 PM norias: of course, if you tried to do that commercially
09:56 PM norias: some qc guru at a customer would go ape shit
09:56 PM XXCoder: fun to see black metal support super shiny sphere. like magican sphere or something
09:58 PM Wolf__: I need to figure out how the heck the torch height controller works in this plasma table we now have at work…
09:59 PM sync: norias: that is quite common in machine verification
09:59 PM sync: you machine a test part with a few representative features and throw it on the cmm
09:59 PM norias: sync: sure.
09:59 PM norias: but, i wonder if you did that with a probe
09:59 PM norias: to show that the cnc can measure parts correctly
10:00 PM norias: if some qc guy would shit bricks
10:00 PM norias: i.e. doing it for final inspection and not in-process
10:01 PM sync: people do use their machine to measure parts
10:01 PM sync: but it's so-so
10:01 PM norias: right
10:01 PM norias: the question is - how do you get the so-so out
10:03 PM sync: by not using a mill
10:04 PM norias: hahaha
10:04 PM norias: that is the standard answer
10:04 PM sync: it is the answer, there is no practical procedure or people would do it
10:05 PM sync: but a machining center is just not a cmm
10:07 PM Tom_L: one thing a typical cmm runs on air bearings whre a cnc does not
10:08 PM norias: to avoid stiction?
10:08 PM Tom_L: i suppose
10:08 PM Tom_L: i'm guessing better accuracy also
10:08 PM norias: i can definitely see where a lot of error would come in
10:09 PM norias: servo following error, etc
10:09 PM Thorhian: Precission.
10:11 PM Wolf__: get old CMM, convert in to the most overkill 3d printer ever?
10:13 PM norias: bah
10:14 PM norias: i'd rather have a cmm than a 3d printer
10:15 PM Wolf__: true, full working cmm is more useful
10:15 PM norias: https://www.selectcalibration.ca/downloads.html
10:21 PM XXCoder: interesting
10:21 PM XXCoder: wonder how good those are
10:21 PM norias: good question
10:22 PM norias: there's code for some of them
10:26 PM norias: the feedback control simulator is the one most interesting to me
10:27 PM norias: i've been reading some intersting research papers along the same lines
10:52 PM JavaBean|new is now known as JavaBean
11:36 PM flyback: https://imgur.com/a/lAzHPOx