#garfield Logs
Feb 24 2024
#garfield Calendar
12:01 AM rue_mohr: 0.0157"
12:13 AM rue_mohr: 26awg
12:13 AM rue_mohr: so about 760c
12:21 AM rifraf: pretty hot, well the video was cool, this can work for sure
01:21 AM rue_mohr: 1290665
01:21 AM rue_mohr: 10/09/2023
01:27 AM rue_mohr: 1300112 11/26/2023
01:28 AM rue_mohr: 1300165 11/29/2023
01:30 AM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1300167.jpg
01:30 AM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1300168.jpg
01:30 AM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1300169.jpg
02:55 AM rue_mohr: " think for polyurethane foam, there are 2 types, thermoplastic and thermoset. for thermplastic types, it can be melted away, but for thermoset types, they may be burnt away"
02:55 AM rue_mohr: "if it is thermoplastic, melting temperatures are like 200+ deg C? For that, maybe it can be melted even if the wire is not heated red-hot."
03:11 AM rif_shed: yep worth trying
10:32 AM rue_mohr: https://www.hackster.io/news/bending-hot-wire-to-cut-foam-into-unique-shapes-e625b017d51a
10:39 AM obfuscated_d: whoaa
10:40 AM obfuscated_d: that's wild
10:40 AM rue_mohr: heh, hi
10:40 AM obfuscated_d: hey, I wound up working yesterday
10:40 AM obfuscated_d: so no free time
10:40 AM rue_mohr: good good
10:40 AM rue_mohr: I posted an update where I split out the custom settings
10:41 AM obfuscated_d: my old job keeps dangling a carrot. I'm going to be putting together a proposal next tuesday, if they get funding I'll have a job again
10:41 AM rue_mohr: good good
10:42 AM obfuscated_d: I'll pull latest. what are we working on next
10:44 AM rue_mohr: fixed 5 is working great for its goal
10:44 AM obfuscated_d: oh nice
10:44 AM rue_mohr: the stop timing could be better
10:44 AM rue_mohr: dont recall if I set it for direction reversal or stop detection
10:45 AM rue_mohr: should use stop detection, it happens earlier
10:45 AM rue_mohr: but
10:45 AM rue_mohr: holding is the next step, in state 6
10:45 AM rue_mohr: but probably requires pre-encoder feedback
10:46 AM rue_mohr: it seems to take about 1.4ms between turning the power on, and the first encoder line
10:46 AM rue_mohr: and thats too long, its gathered up too much speed
10:46 AM obfuscated_d: hmm, have to guess somehow
10:46 AM rue_mohr: timed pulses
10:47 AM rue_mohr: with pre-profiled movement amounts
10:52 AM rue_mohr: the trick is to come up with a time table for pulses that leaves the motor stopped
10:52 AM rue_mohr: an profiler program for this would be ncie
10:56 AM obfuscated_d: right, so we need some way to profile how many/long/interval between pulses to stop based on velocity?
10:56 AM obfuscated_d: or do we want to try for simpler
10:58 AM rue_mohr: well, same profile, forward pulse, reverse pulse,
10:58 AM rue_mohr: but were working blind as to the times, so maybe if we work out, the size of the reverse pulse needed to leave a given forward pulse stopped?
10:59 AM rue_mohr: but yes
10:59 AM rue_mohr: in the end, we want something like 'this ton,this toff, moves 1 encoder line'
11:00 AM rue_mohr: so, maybe two tables, index is the line count you want, value is the time(on), time(reverse) to do that
11:00 AM rue_mohr: I THINK, from what I'v seen, the system should wait about 2ms for the line to occur
11:03 AM obfuscated_d: I'm here, just thinking
11:03 AM rue_mohr: :]
11:04 AM rue_mohr: we probably need to get a feel for the systems more
11:08 AM rue_mohr: social media is such a strange creature
11:08 AM rue_mohr: pickey eater
11:09 AM obfuscated_d: yea, I don't quite understand it. It's a cool place to meet some interesting people. But, feels empty, mostly just nonsense.
11:10 AM rue_mohr: its been hard to find the cool people I have
11:11 AM rue_mohr: but its also been hard to not follow almost everyone in japan
11:12 AM rue_mohr: hmm
11:14 AM rue_mohr: so, maybe a program that, for a given timed, forward pulse, applies range of timed reverse pulses, and records the velocity/ coast distance
11:14 AM obfuscated_d: keep a 50% duty cycle?
11:14 AM obfuscated_d: like on 2ms off 2ms
11:14 AM rue_mohr: no, probably start about... 25%? and go to... 75%
11:15 AM rue_mohr: its expected that the stop pulse will need to be ~33% of the forward pulse
11:16 AM rue_mohr: stand alone program, not with fixed5 functions
11:16 AM rue_mohr: did the logic capture arrive as fast as it was said to?
11:17 AM rue_mohr: ok, lets make this the first step
11:17 AM rue_mohr: lets generate timed 'forward' pulses
11:17 AM obfuscated_d: yup, showed up yesterday, haven't had a chance to play with it yet. I'm fixing up a website for someone today in fits and starts. I don't really like web dev but it's easy money on the side, ya know
11:17 AM rue_mohr: say, 10ms?
11:18 AM obfuscated_d: (y)
11:18 AM rue_mohr: if we do that we can check if the timers are right, and then work on all the 'what happened after' stuff?
11:18 AM rue_mohr: I have a mess today
11:19 AM rue_mohr: I'm supposed to go fix up some electrical bits for a store, but they didn't confirm the visit, and I have a buddy arriving at my house to pick up a package, but I dont know *when*
11:19 AM obfuscated_d: so generate 10ms forward pulses, verify with the analyzer if we're getting true 10ms pulsese?
11:19 AM rue_mohr: yup
11:20 AM rue_mohr: I think 10ms is enough to get 2-10 encoder pulses post drive from coasting for both of us
11:21 AM rue_mohr: no wait
11:21 AM rue_mohr: not 10ms
11:21 AM rue_mohr: sub 1ms, I did my divide wrong
11:21 AM rue_mohr: 20% of 1ms
11:22 AM obfuscated_d: sounds about right
11:22 AM rue_mohr: 0.2ms.... 200us
11:22 AM rue_mohr: yea, I can think in the morning...
11:22 AM rue_mohr: :]
11:23 AM rue_mohr: we should forge it from code that seperates the local settings
11:26 AM rue_mohr: copy of VelProf with your timer code added in?
11:27 AM rue_mohr: tell me if your busy to code, I'm ok with helping me hunt this out
11:30 AM obfuscated_d: I'll be done with this site in hopefully about 30 mins. then i can focus more
11:30 AM rue_mohr: np
11:30 AM rue_mohr: I need food and stuff
11:37 AM rue_mohr: https://github.com/ruenahcmohr/EGMK/tree/main/firmware/atmega328
11:38 AM rue_mohr: ok, accleration profiler is added! (with split localized settings)
11:38 AM rue_mohr: when you have a chance, tell me if it looks like the detail mangling is ok
12:01 PM obfuscated_d: taking a peek now
12:01 PM obfuscated_d: detail mangling ?lol
12:05 PM obfuscated_d: the refactor looks great. should for sure make it easier for us to change code around on different motors
12:13 PM obfuscated_d: my PCB's finally showed up! I got one hand soldered up, man, I'm never using a sot523 transistor again. that was cursed trying to solder. And, of course I forgot to order two components
12:17 PM rue_mohr: ah! whats the pcb?
12:19 PM obfuscated_d: it's a voltage monitor thing. Long story short, an edge device that is powered off customers solar battery bank. sometimes, they drain their cells too low, and the device powers off. It monitors the voltage, and the status of the edge device, if the device powers itself off, it can't turn itself back on. So, this checks to see if the device is on,
12:19 PM obfuscated_d: and if the battery voltage is high enough, then turns it back on
12:21 PM obfuscated_d: saves someone having to go out there and press the reset button
12:23 PM rue_mohr: ah yea, its like the protector for my solar yard lights
12:23 PM obfuscated_d: https://whateverthefuk.s3.amazonaws.com/pcbpartial.jpeg
12:23 PM obfuscated_d: I threw a picture in this bucket
12:24 PM rue_mohr: cool
12:24 PM obfuscated_d: I'm excited. It's my first PCB
12:24 PM rue_mohr: stressful
12:25 PM obfuscated_d: hah yea. Still don't know if it works, have to wait until the other components show up
12:25 PM obfuscated_d: I'm wondering what are the odds I got it right on the first shot.....
12:25 PM rue_mohr: It wasn't that long ago I was able to order out a custom PCB, for years I couldn't get any of the places to accept my files, and they wouldn't tell me why
12:26 PM rue_mohr: and I need to go change the battery on my solar lights
12:26 PM obfuscated_d: it's getting pretty easy now with those chinese companies
12:26 PM rue_mohr: I use old retired ones and sometimes only get a few years
12:26 PM obfuscated_d: wish there was a US equivalent
12:26 PM rue_mohr: not in a market where prices are set to the max the market will bear
12:26 PM rue_mohr: intentionally
12:27 PM rue_mohr: thats why china seems so cheap
12:27 PM rue_mohr: they just set a reasonable markup
12:27 PM rue_mohr: I overheard a conversation once in a drugstore
12:27 PM obfuscated_d: yea, I doubt a US manufacturer would sell you 5 2 layer pcb's for $1 each
12:28 PM rue_mohr: a new employee asked how the prices were set, and the manager explained that it was done from corp computer to get the highest price the would sell for
12:29 PM rue_mohr: which explains what happened during covid
12:29 PM rue_mohr: when everyone stopped shopping the systems went crazy and put everything on super sale
12:29 PM rue_mohr: as it tried to get people buying again
12:29 PM rue_mohr: but nobody was going out shopping
12:30 PM obfuscated_d: the inflation here has been stupid
12:30 PM rue_mohr: seen an article calling it out 'not inflation'
12:30 PM rue_mohr: its just crazy markup
12:31 PM rue_mohr: when it all hits the fan someone will put out a new pricing regulation
12:31 PM obfuscated_d: well, call it whatever. I just know that everything I buy has gone up 30 -100% in the last 2 years
12:31 PM rue_mohr: yup
12:31 PM rue_mohr: record profits by corperations
12:32 PM obfuscated_d: it's gross. 2 trillion in simulus, that basically all went to corps
12:32 PM obfuscated_d: stimulus
12:32 PM rue_mohr: yup
12:32 PM obfuscated_d: eh, enough of that. it's depressing haha
12:32 PM rue_mohr: yea, not politics
12:33 PM rue_mohr: I'll end up taking a gun and fixing it
12:33 PM obfuscated_d: hah
12:33 PM rue_mohr: https://twitter.com/oric_iss/status/1761418717500453270/photo/1
12:34 PM rue_mohr: I wish this chart had put input and output side by side instead of ontop of each other
12:34 PM obfuscated_d: I'm having a hard time seeing what's going on there
12:35 PM rue_mohr: yea
12:35 PM rue_mohr: so, the idea is that all the logic families have different input ranges, and output ranges
12:35 PM rue_mohr: so, if your attaching two logic families, you can make sure they are compatible with each other
12:35 PM rue_mohr: but
12:37 PM rue_mohr: hmm, breakfast
12:38 PM rue_mohr: oh I have to take a bit of a servo detour, there is a clock circuit I did for someone that needs some problem huting
12:38 PM rue_mohr: hunting
12:39 PM obfuscated_d: np
01:00 PM aandrew: looks ot me like LS output to HCT input should work just fine
01:01 PM aandrew: LS Vol is 0-.35V, HCT Vil is 0-0.8. LS Voh is 3.3-5V and HCT Vih is 2-5V (assuming 5V supply)
01:01 PM aandrew: I wish people would stop posting images with such low resolution and JPEG encoded when text is important
01:02 PM aandrew: ahh much nicer: http://www.interfacebus.com/voltage_threshold.html
01:04 PM aandrew: hm "However the difference in input logic switching level does impact your design, the TTL output does not correctly switch a CMOS input. The switching difference between a TTL IC output and a CMOS IC input has to be accounted for."
01:04 PM aandrew: oh wait, I was comparing LS and HCT not LS and HC
01:05 PM rue_mohr: :]
01:05 PM aandrew: LS vol is 0-.35V, HC Vil is 0-1.3V. LS Voh is 2-5V, HC Vih is 3.7-5. That's the issue, Vih
01:06 PM aandrew: LS can output as little as 2V as a high, where HC input expects at least 3.7V.
01:07 PM aandrew: and that's why the T in HCT is important, it drops Vih minimum down to 2V
01:09 PM rue_shop3: I wonder if being on social media has made me any more social...
01:12 PM obfuscated_d: rue_mohr https://twitter.com/jendevca/status/1761404931171373375/photo/1
01:12 PM rue_shop3: I should also put away the wire cutter and use the cnc to finish the steam engine parts
01:12 PM obfuscated_d: here's social media
01:12 PM rue_shop3: haha
01:14 PM rue_shop3: <rue_mohr> 1300112 11/26/2023
01:14 PM rue_shop3: <rue_mohr> 1300165 11/29/2023
01:14 PM rue_shop3: <rue_mohr> 1290665 10/09/2023
01:14 PM rue_shop3: oct/nov
01:18 PM rue_shop3: 595ClockH_M: 595->7seg 4x595
01:19 PM rue_shop3: 595ClockH_M_2: 595->4b7s 2x595
01:20 PM rue_shop3: 595ClockH_M_3: 595->BCDx2 2x595
01:21 PM obfuscated_d: what's all that?
01:21 PM rue_shop3: stuff for the FSM clock Laurance designed based on my code
01:22 PM obfuscated_d: ah
01:23 PM rue_shop3: he got it all assembled and the state machine wasn't working
01:23 PM rue_shop3: so I pulled mine off the shelf and its not working now either
01:23 PM rue_shop3: I have to tear and down and build it up again
01:23 PM rue_shop3: find out whats goingon
01:29 PM rue_mohr: so at almost 8k twitter followers I'm starting to see a lot of jitter in the count
01:29 PM rue_mohr: I expected it a lot sooner
01:40 PM obfuscated_d: followers going up and down?
01:40 PM rue_mohr: yep
01:41 PM rue_mohr: I expect a lot of people who follow me cause of 1 thing rapidly learn its all tech content and ditch it soon after
01:42 PM rue_mohr: ugh, do I go into town and try to fix up this store or wait till wed when I can organize it with them
01:42 PM obfuscated_d: I started on twitter in jan, I'm just trying to seek out the tech stuff... The real tech stuff, not web developers who hardly know javascript
01:42 PM rue_mohr: how do all my weekends always get messed up
01:43 PM rue_mohr: obfuscated_d, its a hard group to find
01:43 PM rue_mohr: check over the people I'm following, most of them are or were recently tech
01:44 PM rue_mohr: oh I do have to get the pallettes out of my truck
01:44 PM obfuscated_d: pallets are awesome kindling
01:44 PM rue_mohr: heh, I have to move around the steel material stock
01:44 PM rue_mohr: under my house..
01:45 PM obfuscated_d: ah. got a stock pile?
01:45 PM rue_mohr: yep
01:45 PM rue_mohr: its not much, but apparently its a lot
01:45 PM rue_mohr: I'v built a few things and noticed they didn't even put a dent into it
01:46 PM rue_mohr: that mecha in the profile pic was all made form scrap
01:46 PM rue_mohr: didn't even touch my stock for it
01:46 PM obfuscated_d: what is that thing? a movie prop? pretty cool looking
01:47 PM rue_mohr: I was stuck in vancouver on schooling for like 2 months without being abel to make anything
01:47 PM rue_mohr: I was so pent up I spun that out in like a day when I got back
01:47 PM rue_mohr: JUST BUILD ANYTHING
01:48 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/mecha1/p1080051.jpg
01:48 PM obfuscated_d: heh, I know that feeling
01:48 PM rue_mohr: there are other images in that dir
01:48 PM obfuscated_d: that's a sweet looking mill you have. what is it?
01:48 PM rue_mohr: the light machines one
01:48 PM obfuscated_d: yea, I've never heard of the,
01:48 PM obfuscated_d: them
01:48 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/lightCNC/slide.htm
01:49 PM rue_mohr: estate sale LIKE 1 BLOCK from my house
01:49 PM rue_mohr: it wasn't complete enough that I think anyone here could have got it running
01:50 PM obfuscated_d: nice. I'm on the lookout for a decent vertical mill. I have a beautiful hardinge tm horizontal mill, built in the 40's. And a little harbor freight mini mill but that thing kinda sucks
01:50 PM rue_mohr: quite a task to load it into the shop, its like 800 lbs
01:50 PM obfuscated_d: and the cnc of course
01:50 PM rue_mohr: you could cnc the old one
01:51 PM rue_mohr: lash is the only awkward bit
01:51 PM obfuscated_d: yea, it's a horizontal though. holding things is a pita
01:52 PM rue_mohr: ah, hmm
01:52 PM obfuscated_d: I was eyeballing a grizzly or a used bridgeport
01:52 PM rue_mohr: dont see those that often
01:52 PM rue_mohr: bridgeport probably better
01:53 PM obfuscated_d: for sure bridgeport is nicer, headroom is the issue. My basement is my shop
01:53 PM obfuscated_d: 7 1/2ft clearance
01:53 PM obfuscated_d: and they weigh 1400lbs
01:53 PM rue_mohr: somewhere between all the things I should be doing, I'm not doing anything
01:53 PM rue_mohr: yup
01:53 PM obfuscated_d: yep, that's where im at lol
01:53 PM obfuscated_d: My brain decided it's the weekend
01:54 PM obfuscated_d: I should probably get into gear
01:54 PM rue_mohr: heh, that slideshow isn't helping, there are all sorts of things on that lightcnc still to be done
01:54 PM rue_mohr: (
01:55 PM obfuscated_d: I got my cnc to about 90% and haven't truly finished it. It's like once it's in a state where it works, the motivation disappears
01:55 PM rue_mohr: spindle rpm meter, spindle load meter, chip blower, front panel lights, redo the wiring harness to the machine.... )
01:55 PM rue_mohr: I'm doing the changes to mine in short spurts that leave it working each time
01:56 PM obfuscated_d: I want to do a rebuild on it. better linear rails, better leadscrews, different gantry design
01:56 PM rue_mohr: yup, I suggest continious small upgrades
01:56 PM rue_mohr: try to make a schedule, like 1 thing every 2 months
01:56 PM obfuscated_d: nice thing is I can use the cnc to make new cnc parts.
01:56 PM obfuscated_d: that's a good idea
01:56 PM rue_mohr: yup
01:56 PM rue_mohr: you see I did it a few times there?
01:57 PM rue_mohr: the "army of evil robots" machine was on loan, it went back home
01:58 PM obfuscated_d: ah, looked like a nice little machine
01:58 PM rue_mohr: its a sherline
01:58 PM rue_mohr: amazingly lightly built
01:58 PM rue_mohr: but worked
01:58 PM obfuscated_d: my biggest hindrance on mine is the spindle. I have one of those cheap 2.2kw high speed spindles. Going to build a bt30 setup I thiknk
01:59 PM rue_mohr: "cheap" ahhahah
01:59 PM rue_mohr: I find low rpm high torque is often more useful
02:00 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/cnc4/p1270334.jpg
02:00 PM obfuscated_d: haha, it was $200 ish. Yeah for doing steel and really aluminum with .25" and larger end mill, I need much lower speeds
02:00 PM rue_mohr: thats the last one I finished from scratch
02:01 PM rue_mohr: it uses a drill motor for the spindle, with a speed regulator
02:01 PM rue_mohr: there is a sideshow for it too, should show the build
02:02 PM rue_mohr: the other machine was made in 1998... its ...
02:02 PM obfuscated_d: I'm going to try and cast and machine some iron parts on the next one. cast is so much nicer than steel
02:02 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/cnc/p1100587.jpg
02:02 PM rue_mohr: that one
02:02 PM rue_mohr: uses a weed eater motor, again, with speed regulator
02:03 PM rue_mohr: (closed loop regulation)
02:03 PM rue_mohr: back in 98 I wrote my own NC system for it
02:03 PM obfuscated_d: how well did it work?
02:03 PM obfuscated_d: wrote your own nc?!
02:03 PM rue_mohr: I'm working on gradually converting it to grbl
02:03 PM rue_mohr: yup
02:04 PM rue_mohr: simple, lines are only xy
02:04 PM rue_mohr: and circles are xy too
02:04 PM obfuscated_d: that's still an endeavor, when there are so many available software packages. Still cool though
02:04 PM rue_mohr: yea, I'v kicked myself a few times
02:04 PM rue_mohr: I was going to write a cad/cam program for it
02:05 PM rue_mohr: _I_ could have been the mach
02:05 PM rue_mohr: tho it would have all been free
02:06 PM rue_mohr: in 99 I was going to write an official Gcode parser for it as a school project, but instead built that rotary axis you see in the box
02:07 PM rue_mohr: there is a driven and free-wheeling end
02:07 PM rue_mohr: both 4 jaw chucks (DIY)
02:07 PM obfuscated_d: how was the runout?
02:07 PM obfuscated_d: I see you have a decent lathe there
02:07 PM rue_mohr: I think its still pretty tight
02:08 PM rue_mohr: yes, family gift :]
02:08 PM rue_mohr: round things are so amazingly handy
02:08 PM obfuscated_d: lathe is my favorite tool in my shop
02:08 PM obfuscated_d: that tool has saved my butt so many times
02:09 PM rue_mohr: and on that 1998 machine.. still origional threaded rod
02:09 PM rue_mohr: dont let anyone tell you it'll wear out too fast to be useful
02:10 PM rue_mohr: 26 years, hahah
02:10 PM obfuscated_d: my first cnc used 1/2-13 allthread with some homemade anti-backlash nuts, worked great
02:10 PM rue_mohr: and LOTS of hours on it
02:10 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/cnc/slide.htm <-- did you see the antilash I did?
02:11 PM obfuscated_d: oh yeah
02:12 PM obfuscated_d: I made two brass nuts and a sleeve they fit in with set screws to lock them in place. made it rigid and adjustable
02:12 PM rue_mohr: nice
02:12 PM obfuscated_d: I wish I would've taken pictures of that stuff..
02:13 PM rue_mohr: that old machine was designed to "maybe be able to do aluminum" but was mostly intended for wood/foam
02:14 PM obfuscated_d: I'm pretty happy with my current machine, aside from the spindle. it'll do steel no problem, just have to stick to small end mills because of the high rpm
02:14 PM obfuscated_d: holds .0005" tolerance
02:21 PM rue_mohr: nice
02:22 PM obfuscated_d: man, now I wanna go machine something. but anyway, should do some dev on the EGMK
02:26 PM rifraf: have you sen this guy? https://www.youtube.com/watch?v=pKrQ-7XNngc dedicated to pvc
02:26 PM rue_shop3: hah
02:27 PM rue_shop3: omg someone else who flattens pipe
02:28 PM rue_shop3: hey wait, that lathe in the start isn't 3d printed
02:28 PM rifraf: nope
02:28 PM rifraf: he makes it from pvc pipe
02:28 PM rue_shop3: wow, awsome down
02:28 PM rifraf: as well as every other tool in the shop
02:29 PM rifraf: and his excavator is well worth a few watches
02:29 PM obfuscated_d: that's pretty cool. That guy's poor lungs though. PVC puts off some gnarly chlorine gas
02:29 PM rue_shop3: nice power feed
02:30 PM rue_shop3: I think his bits need more rake angle tho
02:32 PM rue_shop3: ok, I found the missing wire, the clock is working again
02:34 PM polprog: evening
02:34 PM rifraf: the work on this is amazing https://www.youtube.com/watch?v=qam0DmWq_No
02:34 PM polprog: soldered 5 boards on the hotplate today
02:34 PM rifraf: all from a pipe
02:35 PM obfuscated_d: :O
02:36 PM polprog: http://0x0.st/H5n4.jpg http://0x0.st/H5ny.jpg
02:37 PM polprog: first time with stencil B)
02:37 PM rifraf: polprog cool, and the after pic?
02:38 PM polprog: H5n4 is after
02:38 PM polprog: now i gotta start writing the firmware
02:38 PM polprog: china still didnt send the flex pcbs for the sensor
02:39 PM polprog: ive gotta assemble one more Nabaztag PCB
02:39 PM polprog: robotic rabbit for gf
02:39 PM rifraf: in a frying pan or just on hotplate?
02:39 PM polprog: a proper hotplate :)
02:39 PM polprog: UYUE 946C
02:39 PM rue_mohr: what ar the boards polprog ?
02:39 PM rifraf: cool, never tried that, did alot in toaster oven back in the day
02:39 PM polprog: mom didnt let me mod her toaster oven
02:40 PM polprog: rue_mohr: these are the mainboards for a hand movement measurement system that I am making at uni
02:40 PM polprog: accelerometer/IMU at every finger bone
02:41 PM rue_mohr: oh
02:41 PM rue_mohr: not the flex pcb strip things?
02:41 PM rue_mohr: the layered sliding ones?
02:41 PM polprog: the flex pcb things are the sensor board
02:41 PM polprog: this is the main
02:41 PM polprog: im waiting for them still, ill post them when they are here
02:41 PM rue_mohr: ooo?
02:41 PM polprog: :)
02:41 PM rue_mohr: I was going to make some
02:41 PM polprog: i could send you some leftovers and a main
02:42 PM rue_mohr: then I realized I dont ahve to get them all made with flex pcb
02:42 PM rue_mohr: I have a super simple circuit to read the variable capacitance
02:42 PM polprog: I specifically wanted to make this flex PCB so that it can fit better, there was an older project that used rigid PCBs with wires and that looked weird
02:44 PM polprog: bbl, gotta populate that nabaztag board
02:44 PM polprog: (ill show you when its done)
02:44 PM polprog: https://github.com/nabaztag2018/hardware
02:45 PM polprog: the documentation is awful :<
02:46 PM rue_mohr: so its for hand motion capture?
02:46 PM polprog: pretty much yes
02:46 PM polprog: and for performance measurement of the prosthetic they are making
02:46 PM rue_mohr: is it being used with a VR system?
02:46 PM polprog: no
02:46 PM rue_mohr: 3d rendering?
02:46 PM polprog: the project is for a prosthetic hand design
02:47 PM rue_mohr: hmm
02:48 PM aandrew: that interfacebus website is nice. I like this: http://www.interfacebus.com/Design_Translation.html
02:49 PM rue_mohr: terrible graphics
02:50 PM rifraf: rue, how it works https://www.youtube.com/watch?v=jtmAcBSDHpI
02:50 PM rue_mohr: I think the input and output should be seperate bars against each other
02:50 PM rue_mohr: styrofoam tho
02:51 PM rue_mohr: styrofoam is really low temp
02:51 PM rifraf: yep
02:51 PM rue_mohr: so I'm curious if it would work on the foam your interested in cutting
02:52 PM rifraf: the outside of the wand of ground, and a wire goes through the center insulated
02:52 PM rifraf: make one :)
02:52 PM rue_mohr: yea I know
02:52 PM rue_mohr: dont have any insulation that thin
02:52 PM rifraf: yeah, i have lots of thin teflon tube
02:53 PM rifraf: for printer thermistors, handles upto 250C ok
02:54 PM rifraf: but no thin stainless tube, will have to wait to the thing arrives
02:55 PM rue_mohr: copper capilary from a fridge
02:55 PM rifraf: don't think she would appreciate my butching the fridge
02:56 PM rue_mohr: why would she care, robots dont eat
02:56 PM rifraf: heh he trys to cut through a coke bottle and lid at 8 minutes in
02:57 PM rifraf: melts a PET coke bottle ok
02:57 PM rue_mohr: the comment about making a system that compentates for the resistance change is good
02:58 PM aandrew: hah this is interesting: https://www.reddit.com/r/AskElectronics/comments/1az3e3x/what_is_the_purpose_of_the_highlighted_components/
02:58 PM aandrew: tl;dr: zobel network
02:59 PM rue_mohr: huh oh
03:00 PM rue_mohr: ok, I'm waiting on a circuit
03:02 PM rifraf: 4 axis foam cutting https://www.youtube.com/watch?v=cQN6KdKg7DI
03:03 PM rue_shop3: hehehe
03:03 PM rue_shop3: There is the smell of a rabbithole in the air...
03:04 PM rue_shop3: rifraf, I suggest you find some wire from anything quick and some foam samples
03:04 PM rifraf: not gonna jump in, too many things on the go
03:04 PM rue_shop3: if you start trying to design the ultimate system before you start, it's never gonna get off the ground
03:05 PM rifraf: yep but is Sunday morning, this week will get some supplies
03:05 PM rue_shop3: rifraf, there will always be too many things, cmon, think back
03:05 PM rue_shop3: the only things that happen are the ones crammed sideways into the cracks
03:05 PM rifraf: rue just a simple task to acheive here, and using my existing machine
03:05 PM rue_shop3: yup
03:07 PM rue_shop3: am I right tho?
03:07 PM rue_shop3: is there EVER time?
03:07 PM rifraf: oh course
03:08 PM rue_shop3: mhm
03:08 PM rue_shop3: I'll have time when I die
03:08 PM rifraf: never enough time, am trying to focus more on wat the machine can do, spend to many years making machines just for the fun of making it
03:08 PM rue_shop3: so I need to do everything else in the meantime
03:09 PM rue_shop3: yea, I'm trying to choose my paths carefully to build on each other to my goal
03:09 PM rifraf: same
03:11 PM rue_shop3: I wonder if any of our work overlaps or compliments
03:11 PM rifraf: make sure you enjoy the time though, in the end they will not know what to do with all these tools and projects and our life might be an interesting garage sale before it all goes to the dump
03:11 PM rue_shop3: I'll know what to do with it tho ;]
03:12 PM rifraf: yes, rue am sure we could create amazing things, but 99% of people will just look and shake their head
03:14 PM rue_shop3: my goal is to create me
03:14 PM rifraf: my life has been 'how long can i make a top spin' for months now
03:14 PM rifraf: well about 3 months
03:15 PM rue_shop3: which is why I need to work on AI and neural interfaces
03:15 PM rifraf: and i can spin longer than lost now
03:15 PM rifraf: most*
03:15 PM Tom_L: whomever of us is left will know
03:16 PM Tom_L: my goal with the mill wasn't necessarily to machine things but to learn all about linuxcnc and how things go together
03:16 PM Tom_L: machining is a bonus
03:17 PM rifraf: yeah i am trying to see what linuxcnc can do for me, at the moment only got it installed
03:17 PM Tom_L: stepper or servo?
03:17 PM rifraf: am pretty happy with the controller i got, but no pc interface
03:17 PM rue_shop3: stepper
03:17 PM rifraf: stepper
03:17 PM rue_shop3: rifraf, your not using mach?
03:18 PM Tom_L: if you can dream it, lcnc can do it
03:18 PM rifraf: nah not anymore
03:18 PM rue_shop3: hmm
03:18 PM rue_shop3: I'm using GRBL
03:18 PM Tom_L: for control, the mesa cards are the very best way to go
03:18 PM rue_shop3: via a serial-over-ethernet and a spooler program I wrote called "tape runner"
03:18 PM Tom_L: rue is just stubborn
03:19 PM rue_shop3: well
03:19 PM rue_shop3: cost
03:19 PM Tom_L: i've _almost_ accepted that
03:19 PM rue_shop3: my projects are $20
03:19 PM Tom_L: no they're not
03:19 PM rue_shop3: but they are
03:19 PM rue_shop3: max of $40
03:19 PM Tom_L: how much was the mill?
03:19 PM rifraf: using this one https://www.nvcnc.net/smc5-5-n-n.html
03:19 PM rue_shop3: thats not a project, thats a tool
03:19 PM Tom_L: how much was the lathe?
03:19 PM rue_shop3: seperate budget
03:19 PM Tom_L: lcnc is a tool
03:19 PM rue_shop3: hmmm
03:20 PM rue_shop3: so I should buy the $400 in steppers like rif is using on his cnc?
03:20 PM rifraf: i only bought one, the rest were from other projects
03:20 PM rue_shop3: I still want a step interface for dc servos
03:20 PM Tom_L: mesa does that
03:20 PM rifraf: but i did but a second one to speed up my tailstock during its upgrage to more travel
03:21 PM rue_shop3: mesa is big money
03:21 PM rue_shop3: I'm hurt if I put $1k into that big cnc
03:21 PM Tom_L: that thing rif posted is $1200
03:21 PM Tom_L: a mesa card is like $150-200
03:21 PM rue_shop3: ? which thing
03:22 PM rifraf: i got one for $600AUD
03:22 PM Tom_L: https://www.aliexpress.us/item/3256802101814906.html?aff_fcid=f70b11b3750d45d4b4243f1b8937d3a7-1708809637845-04687-_AUHYrf&tt=CPS_NORMAL&aff_fsk=_AUHYrf&aff_platform=shareComponent-detail&sk=_AUHYrf&aff_trace_key=f70b11b3750d45d4b4243f1b8937d3a7-1708809637845-04687-_AUHYrf&terminal_id=564872492aec439ebde6fcef956cb5c0&afSmartRedirect=y&gatewayAdapt=glo2usa4itemAdapt
03:22 PM rifraf: buy on aliexpress and hunt around
03:22 PM rue_shop3: 3 of the motors he was showing me were about $400 CAD
03:22 PM rue_shop3: oh god no
03:22 PM rifraf: rue worth every cent
03:22 PM rue_shop3: YOUR JUST A CRAZY OZZY
03:22 PM Tom_L: what sort of step rates do you get?
03:22 PM rue_shop3: (history +-)
03:23 PM rue_shop3: me?
03:23 PM Tom_L: no rif
03:23 PM rifraf: the closed loop steppers don't lose steps, have way more torque , twice the speed and plug and play
03:23 PM rifraf: 200khz
03:23 PM Tom_L: feedrates
03:23 PM rue_shop3: wait, how big a file can it take?
03:24 PM rifraf: fast enough to do alot of damage to my fingers, so i don't run near full speed
03:24 PM rifraf: but can get 1200rpm at the motor and still have torque
03:24 PM Tom_L: spindle?
03:24 PM Tom_L: or axis
03:24 PM rifraf: too noisy though, so gonna change gearing
03:24 PM rifraf: yeah my stepper spindle
03:24 PM Tom_L: oh
03:25 PM Tom_L: lathe
03:25 PM rifraf: cant get that with a normal stepper
03:25 PM Tom_L: my axis are 1:1 and i get ~270ipm rapid on a 5mm screw
03:26 PM rue_shop3: is a tool project a project or a tool....
03:26 PM rifraf: 1,000,000 lines plus, 5 axis at same time with 500khz per axis
03:26 PM Tom_L: rue_shop3, depends on how bad you want it
03:26 PM * rue_shop3 grumbles
03:26 PM rifraf: my closed loop stepps only go to 200khz though
03:26 PM rue_shop3: I cant put $1k into every thing I build
03:26 PM rue_shop3: esp if there is no garuntee it'll work out
03:26 PM rue_shop3: thats why its $20
03:26 PM Tom_L: this is to build other builds though
03:28 PM Tom_L: rif they didn't have closed loop steppers much when i built mine or i may have done that as well
03:28 PM rue_shop3: if it was a working machine (or provably close) I might put $1k into it
03:28 PM Tom_L: you had grbl on it in like a day
03:28 PM rifraf: yep they are a game changer, keeps the drivers out of control box, so far i have nothing bad to say about them
03:29 PM Tom_L: nobody is really
03:29 PM rue_shop3: and the GRBL cost me "nothing"
03:29 PM rifraf: jsut have to restart controller when they get an error, like from a tool crash\
03:29 PM rue_shop3: I put about $10 of materials into it if I counted them, which I didn't casue it was all stock
03:30 PM rifraf: one day will try to reset with the alarm featres
03:30 PM Tom_L: lcnc has a 'run from line' feature that is nice
03:30 PM Tom_L: for things like that
03:30 PM rifraf: yep this box remembers where it was as well
03:30 PM Tom_L: you just gotta pick a good ine
03:30 PM Tom_L: line
03:30 PM rue_shop3: Tom_L, did you ever play with taperunner?
03:30 PM Tom_L: make sure the spindle is on etc
03:30 PM Tom_L: no
03:30 PM Tom_L: i looked at it
03:30 PM rue_shop3: awe :(
03:30 PM rue_shop3: yea
03:30 PM rue_shop3: I know you wont use it, but
03:31 PM Tom_L: i have nothing to use it on but i did look at it
03:31 PM rue_shop3: I kmow
03:31 PM Tom_L: rifraf, you just have a cnc lathe or lathe & mill?
03:32 PM rue_shop3: yea, do you still have the livingroom lathe?
03:32 PM rue_shop3: one day I'll have a lathe in my livingroom
03:32 PM rue_shop3: I'm sold on it
03:32 PM rifraf: my old lathe still next it it, both in my 2x3m shed
03:33 PM rifraf: was making lots of chips on manual lathe yesterday
03:34 PM rifraf: well on both, when i am not being an ATC can do things on manual at same time
03:35 PM Tom_L: https://www.youtube.com/@MakersEase
03:35 PM Tom_L: you should look thru some of his stuff
03:35 PM Tom_L: https://www.youtube.com/shorts/E1-oQAhWiXI
03:35 PM Tom_L: lcnc did that
03:36 PM rifraf: heh pretty neat trick
03:36 PM Tom_L: he's done other shapes
03:36 PM Tom_L: did a spiral hex that screwed into a mating part
03:37 PM Tom_L: he made a harmonic drive
03:37 PM rifraf: yep tryed that, preffered cycloidal though
03:38 PM Tom_L: https://www.youtube.com/watch?v=PtD9w6lp8n8
03:38 PM rifraf: neat, no reason why my new machine can't do that if needed
03:39 PM Tom_L: does it support syncronous motion?
03:39 PM rifraf: am not doinf steel yet apart from a few parts, brass bronze and ally good though, gonna try copper in a bit
03:40 PM rifraf: yes on all 5 axis
03:40 PM Tom_L: you need real sharp tools for copper
03:40 PM rifraf: at 500khz, nice interpolation
03:40 PM rifraf: using all insert tooling now
03:41 PM rifraf: they have some special copper ones to try
03:41 PM rifraf: doing tool changes with hand ground tools was too hard
03:46 PM rifraf: having a proper DRO on me manual lathe has also been a game changer, has made some cool parts in last few years
03:47 PM rue_shop3: :]
03:47 PM rifraf: lol i loved the living room lathe, it lived right next to the 6' fish tank remember
03:48 PM rue_mohr: :]
03:48 PM rifraf: better show you my shed, it was made on one condition
03:48 PM rifraf: had to be a little house
03:49 PM rue_mohr: heh
03:55 PM rifraf: hrm, no usb cable to be found, will have to be later
03:58 PM rue_mohr: ok, what shoudl I be doing right now
03:58 PM rue_mohr: maybe FPV training
03:59 PM rue_mohr: serial link for a bot
03:59 PM rue_mohr: get the camera and stuff on it
04:10 PM rue_mohr: I have some 2.4Ghz wireless links for control
04:10 PM rue_mohr: wonder how long they take to chew up a cell phone battery
04:11 PM rue_mohr: ok idea
04:11 PM rue_mohr: rewind the bot to work on a serial line, then put in the wireless serial bridge
04:12 PM rue_mohr: oh, I can use a tiny13 now I think
04:12 PM rue_mohr: no dont make a new project
04:13 PM rue_mohr: its just intermediate, just get it working
04:15 PM obfuscated_d: never messed with the tiny13
04:16 PM rue_mohr: takes a while to embrace having only 5 IO
04:16 PM rue_mohr: and no serial system
04:16 PM obfuscated_d: yea, that's just like the attiny85 on this pcb
04:16 PM rue_mohr: I made two bit-banged serial systems, one uses timers and the other one uses the ADC
04:16 PM obfuscated_d: you can set up USI on the 85
04:17 PM obfuscated_d: it's receive only serial, but it's something
04:17 PM rue_mohr: huh, I can do both on a tiny13
04:17 PM obfuscated_d: I'm interesting in trying out one of those tiny412 or 426
04:18 PM obfuscated_d: 416*
04:18 PM rue_mohr: an esp8266-01 is $1.50
04:18 PM obfuscated_d: wow
04:18 PM rue_mohr: so, I'm having issues with how much other things cost
04:18 PM obfuscated_d: may as well just do that
04:18 PM rue_mohr: kinda
04:19 PM rue_mohr: 3.3V and less than 5 IO
04:19 PM obfuscated_d: I was shocked at the price of the 85. I can get a 328p for half the price on one
04:19 PM rue_mohr: yea
04:19 PM rue_mohr: thats why I tiny13
04:19 PM obfuscated_d: after I had already sent out the pcb design, I was kicking myself. for the same cost I could have added a ch340 and a 328
04:19 PM rue_mohr: and why I have serial libraries
04:20 PM rue_mohr: yea, I have a CH32 board here that I have yet to try out
04:20 PM rue_mohr: its in the "daily fads" bin tho, so I may not go deeper than arduino IF with it
04:21 PM rue_mohr: and I think riscv will win
04:21 PM rue_mohr: its spreading like wildfire
04:21 PM obfuscated_d: haven't played with that yet. I hear good things though
04:21 PM obfuscated_d: seems like it's getting hot
04:22 PM rue_mohr: I do like the simplicty of the 8 bit chips tho
04:22 PM obfuscated_d: I mean, for most small projects, it's all that's needed
04:22 PM obfuscated_d: you can get some impressive performance
04:22 PM rue_mohr: stm32 is annoying cause you have to do SO much initiaization to get things going
04:23 PM obfuscated_d: yea, I'm a little disappointed in the amount of legwork involved in making one work
04:23 PM obfuscated_d: I do love the rp2040. it's simple to use, has true dual cores, and is cheap
04:25 PM obfuscated_d: where do you normally buy your micros?
04:26 PM rue_shop3: aliexpress
04:27 PM obfuscated_d: bare chips too?
04:30 PM rue_shop1: yup
04:31 PM obfuscated_d: adafruit has the rp2040 for $1 each. that's crazy cheap
04:31 PM obfuscated_d: that's 32bit 133mhz dual core
04:35 PM rue_shop3: explains how they are turning up for flashing leds
04:43 PM polprog: the 2040s are pretty cheap and capable, thats tue
04:43 PM polprog: true*
04:43 PM polprog: soldered the boards..
04:45 PM polprog: https://i.ibb.co/K5mq7gK/IMG-20240224-234243.jpg
04:45 PM polprog: ill do the asics on hot air + hotplate
04:45 PM polprog: they are pretty small, gotta use the wetting trick instead of paste
04:45 PM polprog: i have no stencil for this one
04:45 PM rue_mohr: heh, config trace, nice
04:45 PM rue_mohr: bowtie
04:45 PM polprog: ?
04:46 PM polprog: what do you mean?
04:46 PM rue_mohr: "cut to disable"
04:46 PM polprog: ahh that
04:46 PM polprog: its a very nice board
04:46 PM polprog: and the nabaztag is a nice object too
04:47 PM polprog: https://www.youtube.com/watch?v=krxhnWdTYe8
04:47 PM polprog: skip to 1:50
04:50 PM rue_mohr: do you recall the bigtrak emulator I made?
04:51 PM rue_mohr: for the little robot?
04:51 PM rue_mohr: what I liked about it is the ease of entering a little program squence and running it
05:08 PM rif_shed: second time today keyboard fell and took down whole shed computer for a 1.5m fall, and still working, but lesson learnt
05:09 PM aandrew: if it happened a second time I'm not so sure that the lesson was learned. :-)
05:11 PM rif_shed: yes indeed, shame on me, learned the hard way, silly wired keyboard
05:12 PM aandrew: I'm just joking, I have certainly done the same many times and cursed the fates rather than myself
05:15 PM rif_shed: only defense i have is alot of stuff in a small space, but all truly preventable
05:16 PM rif_shed: kudos to the 8 year old ibm workstation though, hit the lathe on the way down and still going strong
05:17 PM rif_shed: a few damaged usb cables and 1 odd shaped usb socket
05:44 PM rue_mohr: heh
05:45 PM rue_mohr: ok
05:45 PM rue_mohr: pallettes out of truck, actually managed to do it before dark
05:46 PM rue_mohr: shoveled a bit more dirt out from under the house
05:46 PM rue_mohr: did some figuring on how to move things around
05:50 PM rue_mohr: not a full set of answers yet tho
05:50 PM rue_mohr: ok, FPV robot, EGMK, and ... fixing the bathtub tap
05:52 PM rue_mohr: once the stuff is cleared to the back of under the house, I'll clean out all the insulation and plastic, and make a path to the back, then dig out and properly block off the old field runs
05:57 PM rue_mohr: and I need to buy two more 1kL water tanks
06:11 PM rue_shop3: rif_shed, your not having to hand-cam everything are you?
06:21 PM rif_shed: alot of it yes
06:31 PM rif_shed: have created spreadsheet to assist with common tasks, but too many hours massaging code, would pay some $$$ for reasonable software that can understand my machine
06:32 PM rue_mohr: hmm
06:32 PM rue_mohr: I started a CAM program, it could read objects from a DXF and turn them into NC commands
06:35 PM rif_shed: lazyturn is doing that for me to a point
06:35 PM rif_shed: but it will never be a real program, dev stopped years ago
06:36 PM rue_shop1: yea, well, I had problems with messages between objects in X
06:36 PM rue_shop1: I should have just done it in python
06:44 PM rif_shed: he i even make my first python script in 10 years the other day
06:44 PM rif_shed: the assist with massaging the gcode
06:49 PM rif_shed: i guess like my own post processor
06:59 PM rue_shop3: hmm
06:59 PM rue_shop3: Rues Robot Control Protocol ?
06:59 PM rue_shop3: RRCP?
07:22 PM rif_shed: do we need more protocols?
07:22 PM rue_shop1: yes
07:23 PM rif_shed: ok then
07:47 PM rue_shop3: yay, the wireless link and FPV camera work!
07:49 PM rue_mohr: FPV transmitter gettin WAY too hot at 12V for something thats supposed to be rated 7-24
08:08 PM Tom_L: kid spent the day at work cleaning out the coolant tank on his machine
08:09 PM Tom_L: only 1200 gallons
08:13 PM rue_mohr: yea, I just need 5G
08:13 PM rue_mohr: fer like a lifetime
08:14 PM rue_mohr: 1L would be nice
08:14 PM Tom_L: i've gone thru maybe 1/2 gal concentrate so far
08:15 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1300824.jpg
08:15 PM rue_mohr: I finally worked on this poor thing
08:15 PM Tom_L: where you headed with that one?
08:15 PM rue_mohr: the wireless link worked perfectly like right out of the gate
08:15 PM rue_mohr: the FPV worked good, but the transmitter gets hot as all hell
08:15 PM Tom_L: need a heatsink?
08:15 PM rue_mohr: well, if I'm going to become a robot I need to practise
08:16 PM rue_mohr: and you have to start somewehre
08:16 PM rue_mohr: It needs a tilt & pan between the FPV and camera
08:16 PM rue_mohr: be able to look around
08:16 PM Tom_L: like sheldon
08:16 PM Tom_L: i forget the show
08:16 PM rue_mohr: and the motors need to be bumped up to 24V
08:18 PM Tom_L: https://www.youtube.com/watch?v=WjWfur9at2s
08:18 PM rue_mohr: also need to work with motion capture and nerve sensors and vrchat (maybe, its a bit heavy)
08:19 PM rue_mohr: hehe
08:23 PM rue_mohr: hmm
08:23 PM rue_mohr: ok, nice to check that box
08:55 PM rue_mohr: hmm, for about $400, I could get a new computer core, @ 6 core 4.7Ghz w/32G ram
08:56 PM rue_mohr: motherboard, cpu, ram
08:56 PM rue_mohr: a bit up from 3 core 3.3Ghz
08:56 PM rue_mohr: 8G
08:57 PM rue_mohr: I'm worried a bit cause my core is over 10 yrs old
08:58 PM rue_mohr: load average: 0.72, 1.76, 1.72
08:58 PM rue_mohr: using just a bit over one core
08:58 PM rue_mohr: probably becasue chrome is running
08:58 PM rue_mohr: total used free shared buffers cached
08:58 PM rue_mohr: Mem: 7.8G 4.4G 3.4G 0B 324M 2.1G
08:59 PM rue_mohr: hardly using any of the 8G of ram
08:59 PM rue_mohr: but, I'm running 32bit, and its so much better on memory
09:00 PM Tom_L: $20 budget...
09:00 PM rue_mohr: PC budget is $100/component (cpu, ram, motherboard...)
09:00 PM Tom_L: do you run intel or amd?
09:00 PM rue_mohr: AMD
09:00 PM rue_mohr: so its actually fast
09:01 PM Tom_L: i don't do that much that requires fast now
09:01 PM rue_mohr: oh, that price was wrong
09:01 PM rue_mohr: thats in usd, wow, things have gone way up then
09:01 PM rue_mohr: it used to be hard to spend $100 on memory
09:02 PM Tom_L: i got 8g on most of mine i think
09:02 PM Tom_L: don't need it on this one but still has it
09:02 PM Tom_L: all it does is irc and yt
09:02 PM rue_mohr: hahah
09:03 PM rue_mohr: this vrchat thing bothers me too
09:03 PM rue_mohr: a program that out of the gate pulls 6G of ram
09:03 PM rue_mohr: and I thought chrome was bad
09:04 PM Tom_L: a chat thing?
09:04 PM rue_mohr: vrchat wants more than 8G, I'm guessing 10G-12G would satisfy it
09:04 PM Tom_L: wtf
09:04 PM rue_mohr: yea, remember back in 2000 yahoo chat?
09:04 PM Tom_L: never used it
09:04 PM rue_mohr: with the little avatars ?
09:04 PM rue_mohr: oh
09:04 PM rue_mohr: it was cute
09:04 PM rue_mohr: anyhow, now its 3d
09:05 PM rue_mohr: and, for a program that does the same thing we could do in 512M back in 2002, it tries to use 8G
09:07 PM rue_mohr: like I say, most of my interest is cause I should get something new for the next 10 years
09:07 PM rue_mohr: not spending $500 so I can run vrchat
09:07 PM rue_mohr: or any single program
09:08 PM Tom_L: cpu will be a liquid by then
09:08 PM rue_mohr: this machine is pretty good for its age
09:08 PM rue_mohr: 3 core 3.3Ghz with 8G ram
09:08 PM rue_mohr: just to meet that you need to spend a good few hundred
09:09 PM Tom_L: i'm not sure what my test pc is
09:09 PM rue_mohr: and thats been my issue for years now
09:09 PM rue_mohr: I could spend like $1000 and get .1Ghz more
09:09 PM rue_mohr: "no thanks"
09:25 PM rue_mohr: oh, is the us dollar crashing from the election yet?
09:26 PM rif_shed: something boring from today https://www.youtube.com/watch?v=yzZEbo-4GKw
09:28 PM rue_mohr: so, why are tops so crazy popular on the market, for years now, I know a shop that makes like their whole income on tops
09:28 PM Tom_L: what do those go for?
09:29 PM rue_mohr: a lot
09:29 PM Tom_L: that's your stepper spindle?
09:31 PM rif_shed: yep
09:31 PM Tom_L: show some more of it so i can see how it's put together
09:32 PM rif_shed: is just held together with a few welds for now, was gonna redo the frame once i have used it and know just what it needs
09:32 PM rue_mohr: ebay.com/itm/296233141654
09:32 PM rue_mohr: I suppose a lot is relative, but
09:32 PM rif_shed: i video the other day showed it all at the end, only other vid
09:32 PM rif_shed: yes tops are cheap if you go to aliexpress
09:33 PM rif_shed: but a good well made spinning top goes for $50+
09:33 PM Tom_L: damn i'm in the wrong business
09:33 PM rif_shed: and am getting pretty awesome times here, more than the rest
09:33 PM Tom_L: :)
09:33 PM Tom_L: cool
09:34 PM rue_mohr: https://www.ebay.com/itm/295580051007
09:34 PM rif_shed: well lets see. have put alot of effort into this thing, am making other stuff to, was not made for tops
09:34 PM Tom_L: my 4th axis is just a chinaco indexer i put a stepper on
09:34 PM rif_shed: tops are just a great way to ensure machine is accurate
09:34 PM rue_mohr: https://www.ebay.com/itm/185914168462
09:35 PM rue_mohr: its like "why do people keep 3d printing benchies"
09:35 PM rif_shed: yep sky is the limit, but i am working with what i have
09:35 PM Tom_L: don't we all
09:36 PM rue_mohr: I just dont get it tho
09:38 PM rif_shed: whats your best way to get mirror finish on brass?
09:38 PM rue_mohr: https://www.ebay.com/itm/395219499856
09:38 PM rue_mohr: freaking money laundering
09:38 PM rif_shed: am gonna go to hardware soon and get a bit more than fine paper and polish
09:38 PM Tom_L: that red brass polish 'stick'
09:38 PM rif_shed: lol
09:39 PM Tom_L: if you want it to stay, clear coat it
09:39 PM rif_shed: and hoping to keep the patina away with a fine coating
09:39 PM rif_shed: ok thanks Tom_L will look for the red one
09:39 PM Tom_L: we used muratic acid to 'clean' brass parts
09:39 PM rue_mohr: https://www.ebay.com/itm/304282326771 last link, the world is insane
09:40 PM rif_shed: Tom_L clean as in?
09:40 PM Tom_L: remove the tarnish
09:40 PM Tom_L: quick
09:41 PM rif_shed: some of the EDM ones go for a lot and are worth it
09:41 PM rif_shed: have not made the EDM just yet
09:42 PM rif_shed: Tom_L yep, am gonna accept a fine coating and try prevent tarnish for a while
09:42 PM Tom_L: https://goddards.com/product/brass-copper-polish/
09:42 PM Tom_L: untested
09:43 PM rif_shed: personally i love my favourite tops i carry each day and are all beaten up and tarnished, they still spin
09:43 PM rif_shed: using this at the moment https://www.bunnings.com.au/autosol-250ml-metal-polish-liquid_p4460757?store=8140&gad_source=1
09:44 PM rif_shed: have an old one in storage shed i should find, used to make mirror finish
09:44 PM Tom_L: i'm sure the ingredients are all similar
09:44 PM rif_shed: yep but this old stuff was something else, even without any sandpaper or buffing
09:45 PM rif_shed: was from a garge sale years ago
09:45 PM Tom_L: https://www.amazon.com/Drixet-Jewelers-Rouge-Polishing-Compound/dp/B074HQ736H?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=A32RLE08M2N1D1
09:45 PM Tom_L: was more what i was thinking for the initial 'finishing'
09:46 PM Tom_L: only formulated for brass
09:46 PM rif_shed: cool, will see if we have anything like it
09:47 PM Tom_L: then clean real good
09:48 PM rue_mohr: obfuscated_d, you sleepin right?
09:50 PM Tom_L: the other method is the acid approach
09:50 PM Tom_L: some even say catsup works
09:51 PM Tom_L: https://www.empireabrasives.com/green-rouge-metal-buffing-compound-large-bar/
09:52 PM Tom_L: https://www.empireabrasives.com/blog/how-to-buff-and-polish-brass-like-a-pro/
09:52 PM Tom_L: near the bottom
09:52 PM Tom_L: so red or green
09:52 PM rif_shed: k will go see what i can find, need some mini wheels for buffing
09:52 PM Tom_L: dremel maybe?
09:52 PM rif_shed: yep
09:53 PM Tom_L: we had a 15" wheel we used
09:53 PM Tom_L: 3" wide or so
09:53 PM rif_shed: to get the insides, the otherside can be done on lathe
09:53 PM Tom_L: make a mandrel to turn it as you buff
09:54 PM Tom_L: like the dremel holds it's barrel sanding disks with a rubber center to pinch them
09:54 PM Tom_L: that way it won't be in the way
09:54 PM Tom_L: then flip and repeat
09:55 PM Tom_L: more likely to find the bars at an 'industrial supply' sort of place
09:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/flippy_flip.jpg
09:56 PM Tom_L: those were a 'thing' for a while too
10:16 PM Tom_L: rif_shed, is the center pressed into the brass?
10:35 PM rif_shed: yeah, on those, have threaded versions too
10:36 PM rif_shed: found green white red black blue sample pack of sticks
10:37 PM rue_mohr: https://infosec.exchange/@RueNahcMohr/111990263153762103
10:37 PM rue_mohr: does that video play?
10:39 PM rue_mohr: I dont know if they let just anyone in
10:39 PM Tom_L: yes
10:39 PM rue_mohr: oh cool
10:40 PM rif_shed: yeah
10:42 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/coupler/Coupler_brass5.jpg
10:42 PM Tom_L: rue, remember those?
10:42 PM Tom_L: that was kinda fun to make
10:43 PM rue_mohr: oh yea
10:43 PM rue_mohr: he was looking for more
10:43 PM rue_mohr: but last I talked to him he got rid of the tool
10:45 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/extinguisher_nut/Pressure_test_cap3.jpg
10:45 PM Tom_L: single point thread
10:45 PM Tom_L: another rue project
10:48 PM rue_mohr: yea there have been a lot!
10:49 PM rue_mohr: Its been great fun
10:49 PM rue_mohr: do you think I have presented wonderfully crazy projects?
10:49 PM Tom_L: always found a solution
10:50 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Skate_truck/Spacer1.jpg
10:50 PM Tom_L: cnc milled 'lathe' parts
10:54 PM rue_mohr: :)
10:57 PM rue_mohr: awe crap
11:12 PM Tom_L: rif_shed, dremel even makes a form of the red paste. the compounds may vary some among brands
11:12 PM Tom_L: https://www.amazon.com/Dremel-421-Polishing-Compound/dp/B00004UDH4
11:13 PM Tom_L: probably not the best one
11:15 PM rif_shed: the liquid polish i had still best shine, these sticks are getting some scrathes out though
11:16 PM Tom_L: the liquids _will_ have the finest grits for sure
11:18 PM Tom_L: i have a plexiglass polishing kit somewhere and i think before you get to the polishes, the fine grit paper is like 6000 grit
11:18 PM Tom_L: wet/dry cloth type paper
11:19 PM rue_shop1: spindle stalled and it *&^&^%^$ed it up
11:19 PM rue_shop1: damnit
11:19 PM Tom_L: stalled??
11:19 PM Tom_L: feed to high?
11:19 PM rue_shop1: yea, apparently the finishing pass is too thick
11:19 PM rue_shop1: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
11:20 PM rue_shop1: thats two ruined castings
11:20 PM Tom_L: that's when you get out your aluminum solder stick and fill it in
11:21 PM rue_shop1: no its the whole (*&^*(^*&^ing profile
11:21 PM rue_shop1: lost origin
11:21 PM Tom_L: i know about that
11:21 PM Tom_L: personally when i had those joint following errors
11:23 PM rue_shop1: I'm going to add a spindle fail - em stop on it
11:23 PM rue_shop1: at some point
11:23 PM rue_shop1: its on my list
11:23 PM rue_shop1: from broken belts and things
11:24 PM rue_shop1: crap that kills the mood tonight
11:25 PM Tom_L: what was the casting for?
11:27 PM rue_shop1: the steam engine
11:27 PM rue_shop1: now I have to make 2 more
11:27 PM rue_shop1: so I"ll try making like 4
11:27 PM rue_shop1: raining like hell out latley so it'll be quite a while before I can try
11:27 PM rue_shop1: and now I'm all pissed off again
11:27 PM rif_shed: that sucks rue, have you made much progress on the steam engine?
11:27 PM rue_shop1: last one was like 4-6 months ago
11:28 PM rue_shop1: yea, I got the crank from a motorbike and have 5 of the 8 castings shaped
11:30 PM rue_shop1: if I can finish it, it should put out enough for electricity for the house
11:31 PM rue_shop1: trees are cheaper than electricity
11:32 PM rif_shed: nice a practical one
11:32 PM rif_shed: pretty quiet and low rpm?
11:32 PM rue_shop1: no, I'm going for 1800
11:33 PM rue_shop1: not sure about noise, closed loop, so might be quiet
11:33 PM rue_shop1: oh well, way quieter than a gas gnerator for sure
11:33 PM rif_shed: yep
11:35 PM rue_shop1: wow rif_shed you dont know how much better it is to just have someone online who I can talk to
11:36 PM rif_shed: cool, it helps me as well
11:38 PM rue_shop1: yep, supper frustrating to try to push one of the projects ahead a bit and having it backfire on me
11:39 PM rue_shop1: so many voices in my head all trying to pull me in so many directions
11:39 PM rue_shop1: while I was over there I was really surprised that getting totally drunk didn't silence them at all
11:41 PM rue_shop3: its nice when they agree
11:41 PM rue_shop3: that casting came out kinda hot
11:42 PM rue_shop3: I suppose I have to think about limits on what the material can take for operation rates
11:42 PM Tom_L: gnite
11:43 PM rif_shed: nite Tom_L
11:43 PM rue_shop3: gngiht