#garfield Logs
Jul 13 2020
#garfield Calendar
12:05 AM rue_mohr: ok, I did ok on my list
02:14 AM rue_bed: I should probably step over one of my grey lines and find a way to make a casting that pays for the next 4
02:14 AM rue_bed: I wonder how much fuel *a* casting takes up
09:37 AM rue_mohr: https://getrad.co/#product iinteresting...
10:47 AM jymmmm: WTH is it?
11:50 AM jymmmm: zhanx_: haha, I wass just thinking of you
11:54 AM jymmmm: zhanx_: I ran the AC yesterday without any issues. Could it have been a fluke?
12:49 PM Tom_L: jymmmm, no the motor is shot
12:49 PM Tom_L: flukes are alot more reliable anyway
12:56 PM jymmmm: I love my Fluke 77
12:56 PM Tom_L: me too
12:57 PM jymmmm: Tom_L: I just picked up a klein CL800.... AC AND DC clamp amp meter
12:57 PM jymmmm: 600A
12:58 PM polprog: i love my fluke 73
12:59 PM jymmmm: The local hvac supply house wants $172, I just found this but not sure if it's china crap or quality https://www.amazon.com/A1728-Condenser-Motor-1075RPM-1-8AMP/dp/B07TW854ZD
12:59 PM jymmmm: shaft is way too long, would have to cut to length
12:59 PM Tom_L: i'd go local on that personally
01:00 PM Tom_L: my motor shop guys are real good to deal with
01:00 PM jymmmm: $100 more to go local
01:00 PM jymmmm: $172 vs $78
01:01 PM Tom_L: last time the owner took me bak in the shop and tested the motor himself
01:01 PM Tom_L: ended up with a $5 cap
01:01 PM jymmmm: ah nice, I tested the cap (with the new klein) reads good.
01:03 PM jymmmm: Just spent $1000 getting the cat replaced on the car last month
01:04 PM Tom_L: so you spend ~150-175 on a meter but go cheap on a motor
01:05 PM Tom_L: it's probably fine
01:05 PM jymmmm: Quality TE is always a good thing. I've had my Fluke 77 30+ years
01:06 PM jymmmm: Tom_L: LOL, I have brand new still in the package HF DMM's, the battery died years ago, the meter/leads died the day I I got it for free =)
01:06 PM jymmmm: (probably)
01:08 PM Tom_L: motor shaft the right size?
01:11 PM jymmmm: Tom_L: way too long, would have to cut
01:27 PM Tom_L: diameter?
01:29 PM jymmmm: I'll have to check
01:29 PM Tom_L: that would kinda be important
01:29 PM jymmmm: and the mounting holes, but I don't understand the desciption they give
01:31 PM Tom_L: that's why i'd go local
02:27 PM jymmmm: Tom_L: YEah, I probably will
03:08 PM jymmmm: Tom_L: Motor will be available for pickup tomorrow
03:16 PM polprog: looks like my parts will be here tomorrow..
03:16 PM polprog: now what do i do today
05:58 PM polprog: maybe i should make a cursed oscillators page
06:14 PM zhanx: 116 out fixing fence sucks
07:15 PM jymmmm: zhanx: Don't be outside at 116F, even sitting on your ass
07:16 PM rue_mohr: polprog did it make sense without narration?
07:22 PM zhanx: Jymmmm why? I have spent time in real heat
07:23 PM jymmmm: zhanx: Unless you are having a bbq serving slow roasted zhanx, Just say no ;)
07:23 PM Tom_L: zhanx, you spent time in the desert didn't you?
07:24 PM jymmmm: I've been in 124F in the shade, just say no! lol
07:30 PM zhanx: 146f was an average I saw and yes tom
07:31 PM zhanx: Rue meatless Monday is egg plant lasagna
07:31 PM rue_mohr: ok
07:32 PM Tom_L: long wait
07:33 PM Tom_L: building linuxcnc on the rpi4
07:33 PM zhanx: Fun
07:33 PM jymmmm: zhanx: 146F ouch
07:33 PM zhanx: Jymmmm and i was wearing full body armor
07:34 PM jymmmm: zhanx: SEriously, how? There's no way to had a 100L camelback
07:35 PM Tom_L: he's about 7'10" 290lb
07:35 PM Tom_L: not quite but...
07:35 PM zhanx: Only 6'6"
07:36 PM jymmmm: Still
07:36 PM zhanx: Jymmmm I am 290 but with a 36" waist size
07:37 PM jymmmm: zhanx: So, a toothpick and 100L camelback?
07:37 PM zhanx: Lol
07:38 PM jymmmm: zhanx: I'm a wuss in the heat, This is me RIGHT NOW... https://i.imgur.com/cGKgwXs.jpg
07:38 PM jymmmm: well, specifically it's the humidity, not the heat that gets me
07:38 PM Tom_L: wuss
07:38 PM jymmmm: Tom_L: YEP =)
07:38 PM Tom_L: it never used to bother me
07:38 PM zhanx: Wuss drop body fat you can tolerate heat better
07:39 PM jymmmm: zhanx: Even when I was a kid, the humidity gets to me. I can be in AZ in 124F and no problem, monsoon season, forget it
07:40 PM Tom_L: i visit Ga every now and then but i would _never_ live there
07:40 PM zhanx: I spent time in places that humidity was a side dish for dinner used to it
07:40 PM zhanx: NC is fun for humidity
07:40 PM jymmmm: zhanx: BTW, the HVAC is working now, but I ordered a motor for $172
07:41 PM zhanx: K
07:41 PM jymmmm: I'd never visit the south, or new england
07:42 PM jymmmm: zhanx: Oh if you know, the 220 to 24V xfmr, whats the typical VA?
07:43 PM aandrew: so my shitty little mobile workbench is almost done
07:43 PM zhanx: 2-24amps
07:43 PM zhanx: Depending
07:43 PM zhanx: 24vac right?
07:43 PM jymmmm: zhanx: Yeah, about 2" x 4"
07:44 PM zhanx: Say 5 amps off the top of my head
07:44 PM aandrew: https://imgur.com/a/AXA76bA
07:44 PM jymmmm: This one works, but is looking a bit crispy :)
07:44 PM Tom_L: aandrew, hope it's not top heavy
07:45 PM jymmmm: and I don't want to work in the snow servicing the HVAC
07:45 PM jymmmm: ...again
07:45 PM Tom_L: damn
07:45 PM Tom_L: bitch about heat now snow
07:45 PM aandrew: Tom_L: no, I put down some 3/4" ply to complete the bottom shelf, and there'll be weight down there
07:45 PM aandrew: it's actually pretty hard to tip as is
07:45 PM zhanx: Lol can't make them happy
07:46 PM Tom_L: aandrew, locking castors?
07:46 PM jymmmm: Tom_L: HEy, it's not easy to keep snow out of the control panel, m'kay
07:47 PM jymmmm: I already have to make a raised cover for the outdoor fan, to keep if from refreezing during defrost cycle
08:00 PM aandrew: Tom_L: yes
08:00 PM aandrew: the idea is that this is just a little mobile bench which will help me while I make more permanent fixtures
08:00 PM aandrew: it's almost level too. :-)
08:23 PM rue_mohr: ok, mow lawm
08:24 PM Tom_L: get a goat
08:25 PM rue_mohr: goats only eat the trees and they poo lots
08:27 PM Tom_L: i wonder what the new rpi update will screw up
08:29 PM aandrew: that's exactly what I think about rpi
08:30 PM aandrew: I've never had a stable rpi, and it's certainl not power
08:31 PM Tom_L: running linuxcnc on it
08:34 PM jymmmm: rue_ fertilizer
08:53 PM rue_shop2: heh
08:53 PM rue_shop2: lawn is mowed
08:53 PM rue_shop2: the offending bits anyhow
08:56 PM zhanx: Ok fence is done minus the pen
08:57 PM Tom_L: ok 2.8.0~pre1 rebuilt and running on the pi again
08:57 PM Tom_L: backing up the image
08:57 PM zhanx: Bad day to go meatless after all that work
08:59 PM zhanx: Augering the gate posts tomorrow then casting feet for the 1 meter 3d printer
09:02 PM jymmmm: zhanx: It's Tuesday (somewhere in the world), BBQ!!!
09:03 PM zhanx: Eggplant lasagna is in the oven
09:03 PM Tom_L: leave it to the canucks! https://www.youtube.com/watch?v=CRvy0SR-Pr4
09:05 PM jymmmm: Chicken boats
09:06 PM Tom_L: it's a common passage like that, they just misjudged a tiny bit
09:06 PM zhanx: Saw that
09:06 PM zhanx: I was like what happened to 1 toot 2 toots
09:29 PM rue_shop2: the description sounds right, the black ship out of control and the red ship pushing it off to shore
09:29 PM rue_shop2: cause you notice that even after the black ship didn't stop pushin
09:29 PM rue_shop2: tho honestly, you CAN shut down the damn engines...
09:32 PM aandrew: Tom_L: that happened like 1.5h from me, in the welland canal
09:35 PM jymmmm: both could have simply hard to port
09:35 PM Tom_L: probably too narrow
09:35 PM aandrew: yeah it is narrow, it's a canal :-)
09:35 PM Tom_L: maybe too shallow too
09:39 PM rue_mohr: one comment said black ship lost control
09:49 PM Tom_L: navigation error
09:49 PM jymmmm: Windows BSOD :D
09:49 PM rue_shop1: our ferries here go out of control all the time
09:49 PM rue_shop1: that looks quite like an out of control ship
09:50 PM rue_shop1: haha update
09:50 PM jymmmm: https://www.wired.com/1998/07/sunk-by-windows-nt/
09:52 PM jymmmm: This is a LOT of research just about ice in the artic... https://www.youtube.com/watch?v=5d6SEQQbwtU
10:27 PM rue_shop1: scooter motors
10:28 PM rue_shop1: I could probably just use scoooter motors damn near direct
10:29 PM Tom_L: what type of motors do they use on treadmills?
10:29 PM Tom_L: those would likely be 120vac wouldn't they?
10:29 PM jymmmm: Tom_L: servo I believe
10:29 PM Tom_L: one of those might make me a good spindle motor
10:46 PM rue_mohr: feed motors
10:46 PM rue_mohr: less they play
10:46 PM rue_mohr: or can I use them direct drive
10:46 PM rue_mohr: lots of current
10:47 PM rue_mohr: the plasma cnc is teaching me to not need to make these gearboxes
10:47 PM Tom_L: how's that?
10:48 PM rue_mohr: you notice how long its taking me to make one gearbox?
10:48 PM Tom_L: do you have one yet?
10:48 PM rue_mohr: no
10:48 PM Tom_L: :)
10:49 PM rue_mohr: granted, a shed happened in the middle of the project
10:49 PM rue_mohr: but
10:49 PM rue_mohr: arg
10:49 PM Tom_L: what ratio were you shooting for?
10:49 PM rue_mohr: well, with vacuum motors, about 20:1
10:50 PM rue_mohr: high power, but its all speed
10:50 PM rue_mohr: they would be fast responce
10:50 PM rue_mohr: I have 4 gear meshes tho, so keeping play out of it is an issue
10:50 PM rue_mohr: not that play matters much on that one
10:51 PM rue_mohr: a plasma cutter isn't slicing to 1 thou
10:51 PM rue_mohr: edge ripple is maybe at best, 10
10:52 PM rue_mohr: up to 100 would seem rough
10:52 PM rue_mohr: average good is probably 25thou or so
10:53 PM rue_mohr: I imagine
10:54 PM rue_mohr: I think waterjet is about 0.75mm stream
10:54 PM rue_mohr: I hope he doesn't get the waterjet going before I finish this
10:54 PM rue_mohr: that would just be insult
10:55 PM rue_mohr: doesn't help sitting here out of energy
10:57 PM rue_mohr: I wonder how many PI channels an stl32 can control
10:57 PM rue_mohr: I suppose the limit is the number of encoders that can be read
10:57 PM rue_mohr: but... an fpga can decode lots of channels at once
10:58 PM rue_mohr: and accumulate them
10:58 PM rue_mohr: and generate pwm
10:58 PM rue_mohr: ooof
10:58 PM Tom_L: rpi4 runs lcnc good
10:58 PM Tom_L: it's arm
10:58 PM Tom_L: you can't do anything else but it works
10:58 PM rue_mohr: yea... the fpga could be the whole IO system for the cnc
10:58 PM Tom_L: it is in this case
10:58 PM rue_mohr: use an fpga for encoders and pwm gens,
10:59 PM rue_mohr: use an stm32 for loop calcs
10:59 PM Tom_L: that's exactly what mesa does
10:59 PM rue_mohr: and use the avr for grbl
10:59 PM Tom_L: the code is available
10:59 PM rue_mohr: its not too hard I dont think
11:00 PM rue_mohr: maybe just the serial comms to the fpga from the stm32
11:00 PM Tom_L: he covers alot of cases you wouldn't need to
11:00 PM rue_mohr: maybe I should buy another fpga
11:00 PM Tom_L: spi
11:00 PM rue_mohr: grbl takes care of most ofit
11:00 PM rue_mohr: I just need to provide a step/dir interface
11:00 PM Tom_L: i've run mine with spi
11:01 PM rue_mohr: so wait
11:01 PM rue_mohr: on the pc you have a big expensive card
11:01 PM Tom_L: it can be on the pc or remote
11:04 PM rue_mohr: but on the pi, your using a spi interface to a fpga that runs things
11:04 PM Tom_L: spi it is remote
11:04 PM Tom_L: ethernet it is remote
11:04 PM rue_mohr: ;/
11:04 PM rue_mohr: ?
11:04 PM Tom_itx: that was rude
11:04 PM rue_mohr: ?
11:04 PM rue_mohr: on the pc you have a big expensive card
11:04 PM Tom_itx: i got disconnected
11:04 PM rue_mohr: but on the pi, your using a spi interface to a fpga that runs things?
11:04 PM jymmmm: Tom_ Welcome Back
11:04 PM Tom_itx: you must have missed what i said
11:04 PM rue_mohr: I have mesages off
11:04 PM Tom_itx: it can be on the pc or remote
11:04 PM Tom_itx: <Tom_L> spi it is remote
11:04 PM Tom_itx: <Tom_L> ethernet it is remote
11:04 PM Tom_itx: <Tom_L> parallel it is remote
11:04 PM rue_mohr: but
11:04 PM rue_mohr: thats all to the big expensive card
11:04 PM Tom_itx is now known as Tom_L
11:04 PM Tom_L: not that expensive
11:04 PM rue_mohr: its over the budget I have for the whole machine
11:04 PM Tom_L: the parallel one is the cheapest
11:05 PM rue_mohr: parallel -> fpga?
11:06 PM Tom_L: that's what i currently do on the mill
11:06 PM rue_mohr: arg, if I slightly commercialized my hobbies, they could pay for cool toys
11:06 PM Tom_L: $60
11:06 PM jymmmm: I'm consider 3 different type of LiPo cells, could someone check my numbers? https://i.imgur.com/YjEOeB3.png
11:06 PM Tom_L: rue_mohr, that's kinda how i've done it
11:07 PM Tom_L: cad cam was $8k but paid for in a year
11:07 PM Tom_L: you saw what happened with the programmers
11:07 PM rue_mohr: yea, its kinda black magic to me, slippery and bites
11:07 PM rue_mohr: I'm not good at selling things
11:07 PM Tom_L: i'm not either
11:07 PM rue_mohr: reaaaaaaly low charisma
11:08 PM rue_mohr: I really couldn't sell heaters to Eskimos
11:08 PM jymmmm: I can sell, but my marketing sucks
11:08 PM Tom_L: you did ok on the sprayers
11:09 PM Tom_L: kindof a limited market there
11:09 PM rue_mohr: not so much
11:09 PM jymmmm: But if you ever have a yardsale, put up signs that say "GEEK SALE", thye will come just to ask what that is
11:09 PM rue_mohr: it didn't lose money
11:09 PM Tom_L: that's a win
11:10 PM rue_mohr: I mostly started it cause the people who wanted the sprayers were REALLY desiprate and I had 3 buddies who needed some money
11:10 PM rue_mohr: one had 2 strokes
11:10 PM rue_mohr: one went insane
11:10 PM rue_mohr: and the other and I have been doing it since
11:10 PM rue_mohr: he gets prettymuch all the money, but he's prettymuch doing it all
11:10 PM rue_mohr: the assembly, the billing, and the banking
11:11 PM Tom_L: seems you have enough labor to get it done
11:11 PM rue_mohr: I'm a bit on the "not nearly as involved as I should be"
11:11 PM rue_mohr: this year there have been 6 orders
11:11 PM rue_mohr: ... orders for 6 sprayers
11:11 PM Tom_L: i'm writing this year off
11:12 PM rue_mohr: what if next year is worse :)
11:12 PM Tom_L: it's bound to
11:12 PM rue_mohr: hopefully now
11:12 PM rue_mohr: not
11:13 PM rue_mohr: I need enough of the world operation to turn myself into a bot
11:13 PM rue_mohr: feel like a guy trying to jump a train and noticing the caboose is comming up a bit fast
11:13 PM jymmmm: rue_mohr: Ok lawnmower man
11:13 PM Tom_L: better change your game plan
11:13 PM rue_mohr: I would if I could
11:14 PM rue_mohr: my only alternate plan relies on getting a lift from aliens who can help turn me into a bot
11:14 PM jymmmm: rue_mohr: at 8 bit?
11:14 PM rue_mohr: which I see as less likley than me doing it
11:15 PM rue_mohr: tho I wonder if the available tech is a bit.....lacking...
11:15 PM rue_mohr: *sigh*
11:15 PM jymmmm: To boldly go where no one has gone before
11:16 PM Tom_L: i did some work with a gal that wrote part of one of those episodes
11:16 PM rue_mohr: haha cool
11:17 PM rue_mohr: gene didn't do it all himself?
11:17 PM rue_mohr: Jean?
11:17 PM rue_mohr: Gene?
11:17 PM jymmmm: Gene Rodenberry, the creator of Original Star Trek
11:18 PM Tom_L: https://www.susannelambdin.com/
11:19 PM Tom_L: The Next Generation: Season 4, Episode 76
11:19 PM rue_mohr: If I 'm this tired every day after work
11:19 PM rue_mohr: how can I get things done
11:19 PM rue_mohr: need to make it really easy
11:20 PM Tom_L: She received a 'based in part' screen credit for Star Trek:
11:20 PM rue_mohr: so, I'v suggested an aluminum casting project for the week
11:20 PM rue_mohr: nice
11:20 PM Tom_L: but what to cast?
11:20 PM rue_mohr: I'm gonna cast ma an aluminum sun
11:21 PM Tom_L: does she paint?
11:21 PM rue_mohr: no but she does art
11:21 PM Tom_L: you could make stuff like that and esty it
11:21 PM Tom_L: etsy?
11:21 PM rue_mohr: :)
11:21 PM rue_mohr: I'm bad at selling tings
11:21 PM rue_mohr: whats with my keybaord these days
11:21 PM Tom_L: make em smaller so shipping is manageable
11:21 PM rue_mohr: not doing what I want
11:22 PM Tom_L: mine has sucked for quite a while
11:22 PM Tom_L: shift on the other one sticks all the time
11:22 PM rue_mohr: its my hands tho
11:22 PM Tom_L: only gave like $5 for em though
11:22 PM rue_mohr: the brain->macro_typing dodnes' work anymore
11:23 PM rue_mohr: I used to be abl to just mash a keybaord and get what I wnated
11:23 PM rue_mohr: half the time the words come out mis-mapped
11:23 PM rue_mohr: (I corrected words, I'd typed works)
11:24 PM rue_mohr: its happening steady too
11:24 PM Tom_L: get used to that
11:24 PM rue_mohr: its like the failures are happening as fast as the retraining
11:24 PM rue_mohr: which implies an undersized system that cant handle whats its supposed to be doing
11:25 PM Tom_L: maybe it's overworked
11:25 PM rue_mohr: probably, multitasking never went well
11:25 PM Tom_L: like the cpu on apollo13
11:25 PM rue_mohr: programming was nice, one task, all day
11:25 PM rue_mohr: focus on it
11:26 PM Tom_L: that's what i try to do
11:26 PM Tom_L: i re'did the pi tonight
11:29 PM Tom_L: i try to pick things about the cad cam i've not discovered once in a while
11:36 PM rue_mohr: Grant Immihara died?
11:37 PM rue_mohr: oooo
11:41 PM rue_mohr: huh
11:41 PM rue_mohr: not covid related
11:42 PM rue_mohr: you have to be pretty famous for me to know your name tho
11:44 PM jymmmm: I'm Rick James biotch ;)
11:44 PM rue_mohr: heh
11:44 PM rue_mohr: I dont remember names either