#linuxcnc Logs
Nov 28 2021
#linuxcnc Calendar
12:37 AM Bleepshop: Anybody here using Carbide Create 5 ? And noticing that the parts arent square to the stock if you actually read the gcode it outputs?
12:45 AM roycroft: funny you should mention that
12:45 AM roycroft: i just installed carbide create tonight
12:45 AM Bleepshop: Make that for a DXF import that slould have been flat/level/square to X/Y/Z.
12:48 AM * Bleepshop has been going nuts digging a hole for a telephone pole through a meter of caliche,, rebuilding the woodstove that decided to turn into a fractionating condensation unit and looking for a good VFD/water-cooled spindle kit on Amazonk...
01:03 AM Bleepshop: Scared hell out of me when I finally punched through the layer of caliche, I had dumped ~5 gallons of water in the hole and was going after the bottom of the hole with a homemade 4" spade bit when all my water just went away and the bottom dropped out. Freaked out for a bit till I was sure I hadn't nailed the sewer line. LOL
01:05 AM Bleepshop: roycroft: Opinions ? https://www.amazon.com/dp/B071JN3FTH/
01:06 AM roycroft: i have that same vfd and a similar, if not identical, spindle
01:06 AM roycroft: for a router those are fine
01:06 AM roycroft: the pump may or may not work well
01:06 AM Bleepshop: roycroft: I'm looking at using it to replace a Porter Cable 75182.
01:06 AM roycroft: but that's easy to replace
01:07 AM roycroft: my old router table had a 7518
01:07 AM Bleepshop: On my CNC machine. I'm sick of listening to the PC scream. LOL:
01:07 AM roycroft: my new one has what you linked to
01:07 AM roycroft: and i'm very happy with it
01:08 AM Bleepshop: Got a 4" hi-flow blower on the way to reverse and use for a vacuum table and extractor.
01:08 AM roycroft: and i'm going to get another of that same combination for my cnc router
01:09 AM roycroft: are you going to feed the vfd with single phase or three phase power?
01:09 AM Bleepshop: roycroft: Crap. I was hoping to sell you a pair of PC 7518s. xD
01:10 AM Bleepshop: roycroft: All I can get here is single phase.
01:10 AM roycroft: i was happy to get my 7518 back for hand-held use
01:10 AM roycroft: in that case, i strongly recommend getting a 3kw vfd, not at 2.2kw one
01:10 AM roycroft: the huanyangs (and perhaps others) do not operate as efficiently when the mains are single phase as when they're three phase
01:11 AM roycroft: and it's recommended to get a bigger vfd when the mains are single phase
01:11 AM roycroft: going from a 2.2kw to a 3kw vfd should cost about $20 or so more
01:11 AM roycroft: it's not a big hit
01:11 AM Bleepshop: I was just going to de-rate the whle lot to 1500W.
01:12 AM roycroft: i suppose you could do that
01:13 AM Bleepshop: The PC in my CNC is running 10K and never gets switched any igher.
01:13 AM roycroft: i just put a 4kw gt series vfd on my milling machine, which just got a new 2hp motor
01:15 AM roycroft: but that is because huanyang were out of 3kw models, and asked me if they could substitute the bigger one
01:16 AM Bleepshop: 21K max/10K = ~45% of 3HP [allowing for the stock shitty PWM] or ~1.4HP ...
01:16 AM roycroft: well you know about derating a vfd when running on single phase
01:16 AM roycroft: and you know what's best for you
01:17 AM Bleepshop: In reality probably more like 1.2 due to the voltage drop getting out here as well. LOL
01:19 AM Bleepshop: roycroft: I was originally looking at the 1500W ER20 spindles and figured that the 2200W would give me 700W of safety margin.
01:19 AM roycroft: my er40 collet chuck arrived today, btw
01:20 AM roycroft: that thing is pretty big
01:22 AM Bleepshop: I got the spare BT-30s and the holders I ordered at work. Now I have free run of the shop/old-stock to construct a real toolcartand consolidate all the things that are currently scattered around.
01:23 AM roycroft: i'm printing an er40 collet tray right now
01:23 AM roycroft: it's going to take a day to print - one of my longest prints yet
01:26 AM roycroft: it also barely fits on my printer bed
02:09 AM Bleepshop: roycroft: If this machine had used CAT40 or BT40 holders the boss was just going to have me buy a mophorn cart and be done with it.
02:18 AM Deejay: moin
05:01 AM JT-Cave: morning
05:21 AM Tom_L: morning
06:12 AM JT-Cave: I've discovered I have way too much crap that I'll prob never use...
08:42 AM Tom_L: i started clearing out a few of those corners lately
08:54 AM JT-Shop: I think I have a bit of break from the plastic factory work to convert the second copy lathe and finish the second spoke lathe before starting on the whirlpool handle auto
09:07 AM Tom_L: gonna try to finish the bath today
09:13 AM JT-Shop: cool
09:14 AM JT-Shop: the best part about the whirlpool job is I get to use a lot of heavy gauge steel tubing for the frame that's left over from other jobs
09:18 AM Tom_L: handle for what?
09:40 AM JT-Shop: lift handle for a mixer
09:43 AM JT-Shop: https://foodal.com/wp-content/uploads/2014/11/Best-Stand-Mixer-For-Your-Home.jpg
09:43 AM JT-Shop: similar to that one I assume
10:48 AM _unreal_: #$%#$% this damn PCB I'm trying to draw in kicad seems to be a 4 layer PCB @#$%@#$@#$
10:48 AM _unreal_: its making it hard to solve the traces
10:48 AM _unreal_: I may have to desolder everything and sand one of the layers off
10:48 AM _unreal_: :S
10:48 AM _unreal_: the ground mask
10:51 AM CloudEvil: _unreal_: I assume you've looked up the datasheets involved?
10:51 AM _unreal_: this is a controller board for bldc motors
10:51 AM CloudEvil: Copying from datasheets is so ubiquitous that it can sometimes now revert to basically checking the identical values on the datasheet are tehre.
10:52 AM _unreal_: the chips are the a3936sed
10:53 AM _unreal_: ve7it already solved the operation of the board. as far as ports go
10:53 AM _unreal_: I'm trying to re-draw it in kicad so I can re-deign it
10:54 AM _unreal_: but I'm finding there are a lot of traces that are laid under the ground mask
11:06 AM Bleepshop: _unreal_: You may find traces sandwiched between ground layers if they were worried about RFI.
11:09 AM _unreal_: could be
11:11 AM Bleepshop: For a real exercise in masochism you could make a 4-layer prototype the way we used to do it back in the early 80s. 4 single layer etched boards, stacked on wire wrap pins and soldered into a slab. LOL
11:14 AM _unreal_: I think what I'm going to do is just re-draw the board as it is and sand down the top layer
11:15 AM _unreal_: when I expose the under side I'll have my final """ traces """
11:15 AM _unreal_: with my luck its a 6 layer PCB
11:15 AM _unreal_: yet there is hardly ANY parts on the board
11:16 AM _unreal_: 3 motor chips, 18 ceramic caps, 5 axial resistors, and 3 SMD resistors. then 3 logic chips
11:17 AM _unreal_: 2 large smoothing caps but I'm not really counting those
11:17 AM roguish[m]: ya know, ya can purchase good, simple, inexpensive bldc drives......
11:19 AM _unreal_: These drives are designed FOR the motors I have
11:21 AM roguish[m]: good luck
11:21 AM roguish[m]: have fun
11:21 AM t4nk_freenode: so what are you messing around with then, _unreal_ ?
11:25 AM _unreal_: a3936sed controllers
11:25 AM _unreal_: IF/when I get my grubby paws on 3 more sat's at work I'll get the final motors I want
11:25 AM _unreal_: if they have the right motors AND WORK....
11:25 AM _unreal_: I'm wanting to rebuilding my home cnc machine to something FAR more robust and "FAST"
11:26 AM _unreal_: My machine is damn good dont get me wrong. but I'm really limited by the 7.75"x12.75" work area
11:26 AM t4nk_freenode: I meant 'messing around For'
11:27 AM _unreal_: ve7it has solved the motor controller its self as far as working. with out doing anything to the controller....
11:27 AM t4nk_freenode: if you got the components... why can't you just put them on a board
11:27 AM _unreal_: I'm toying with building a new board build for it. so I can make individual boards and transplant the controller chips
11:28 AM _unreal_: but I need to talk with ve7it about building an updated controller based on his servo system because these motors I have have encoders. and are for the most part useless with out the encoder. Mainly because they are BLDC. and that gives what 6 steps per rotation
11:28 AM _unreal_: very fast very powerful
11:29 AM _unreal_: tiny nema23 motor with a motor barrel that is no longer then 30mm having 22oz/in of torque is impressive
11:30 AM _unreal_: and over 2k RPM + with out loss of step with out an encoder
11:31 AM _unreal_: The goal is to use with THEM the sat hardware/timing belts etc... that is like a 6 to 1 gear ratio
11:31 AM t4nk_freenode: ever heard of 'artcam' orsth btw?
11:32 AM t4nk_freenode: there are these eleks mills which supposedly come with a version of that
11:32 AM _unreal_: your average cordless drill runs at 600-900 RPM in second gear and driving a threaded rod is often stupid fast compaired to what the steppers most of us use can do
11:33 AM _unreal_: so what I'm getting at is that I'd love to rebuild my home cnc machine to something more robust and TALLER..
11:33 AM _unreal_: and with a greater work area
11:33 AM _unreal_: my current machine is wonderful love it. does everything I need it to do that fits on it
11:33 AM _unreal_: Thats all that kills me is my lack of over all work area
11:34 AM t4nk_freenode: bigger==better
11:35 AM _unreal_: I'd like a bigger 3d printer but I'll buy one LONG before I build one
11:37 AM t4nk_freenode: frankly I don't understand why you haven't already got a room-sized HAAS already
11:38 AM t4nk_freenode: with all that dosh you're scooping up with your cnc
11:38 AM _unreal_: I'd love to have one but I need to escape my "HOME" prison first....
11:38 AM _unreal_: and that wont happen till my father finishes this cancer battle
11:39 AM _unreal_: which looks like he's about to win. just waiting on the latest pep-scan results
11:40 AM _unreal_: if this one show's he's finally clear of the cancer stage 4 cancer originally. FINALLY then he can get his other issues reversed. go back to work and I can finally stop paying all his bills
11:41 AM _unreal_: if it does not show he's clear. then its even more chemo
12:00 PM roycroft: i'm looking at a prusa i3 mk3s+ as my next printer
12:02 PM roycroft: i would get the kit form - i don't think it's worth $250 more to have it pre-assembled
12:14 PM _unreal_: ve7it, sup
12:15 PM ve7it: _unreal_, hey... just getting organized... I have been working on a hackrf signal generator project
12:15 PM _unreal_: nifty
12:15 PM _unreal_: what kind of RF?
12:16 PM _unreal_: ve7it, so I have a new project that I'm looking at doing IF I get my hands on a few more new sat's
12:17 PM _unreal_: if I get them and they have the final BLDC motors I want. the one's that are a bit larger then the one's I gave you but also have an onboard encoder. I want to then build a new home cnc machine using those BLDC's
12:17 PM ve7it: well... the hackrf board can transmit between about 1MHz and 6000MHz... thought it might be nice to be able to transmit am,fm,dsb,ssb
12:17 PM _unreal_: hum
12:18 PM _unreal_: bi directional? or just transmit?
12:18 PM ve7it: all with the idea of maybe using it to make a higher power transmitter
12:19 PM ve7it: it also receives over the same range, but not really a high performance receiver...
12:19 PM ve7it: filters and amps would help it out
12:19 PM _unreal_: What are you planning to transmit then?
12:21 PM ve7it: who knows? mostly trying to learn how to implement DSP programming... just a building block for now
12:21 PM _unreal_: ahh
12:21 PM _unreal_: question for you...
12:21 PM _unreal_: since you got the BLDC board I sent you working....
12:21 PM _unreal_: trying to figure out what direction I should take
12:22 PM _unreal_: simply because I GOT NO F'ING Idea
12:22 PM _unreal_: :)
12:22 PM _unreal_: the board I sent you functions via SERIAL for motion control
12:23 PM _unreal_: Now I'm looking to use ether the same board OR build new small single motor drive boards depending on your answer :)
12:23 PM _unreal_: My question is a two part.
12:25 PM _unreal_: first is is the serial interface of the board fast enough to drive the 3 controllers in an aggressive setup with a cnc machine? and if the servo controller design was modified to drive these chips I assume each pic chip is only able to read a single encoder
12:27 PM _unreal_: so in your opinion. what would be the best direction to drive these 3 larger BLDC motors with onboard encoders.
12:29 PM ve7it: it depends on if the driver chips are well matched to your bigger motors. If you are talking about the servo board I designed, it is driven from lnc by a quadrature signal instead of step and direction.
12:30 PM ve7it: the serial interface is just for setup and testing
12:31 PM _unreal_: the board I sent you drive 3 BLDC motors. 2 are the same size the small one's which I sent you what? 3 of
12:31 PM _unreal_: in the SAT setup. two are small and one is a large one
12:32 PM ve7it: if I was doing a new system, I might use one of the stm boards as a basis.... I have seen code that interfaces to up to 10 encoders.... not sure how practical it is.
12:32 PM _unreal_: the large one is the one with the encoder which I did not send you. same motor just a little larger and has an quad encoder built into the back
12:32 PM ve7it: ok
12:32 PM _unreal_: so the board I sent you is designed by default for the motor I have
12:33 PM _unreal_: aside from the board its self having a few "jumpers" that are hard soldered
12:33 PM _unreal_: for function changes... all 3 drives are setup identical so far as I've probed out
12:33 PM _unreal_: all timing settings. all resistor values all everything
12:36 PM _unreal_: looks like one is 100% hardwired, the middle one has one "hard" soldered jumper, and the chip closest to the logic chips has 3 jumper settings that are again hard soldered. so far as I've probed I believe all settings are identical between all three chips
12:39 PM _unreal_: ve7it, what is your web site link now again?
12:40 PM _unreal_: google found it http://ve7it.cowlug.org/
01:01 PM JT-Shop: van is gone
01:01 PM _unreal_: ?
01:09 PM Tom_L: yay
01:17 PM JT-Shop: he bought the drone I had for sale too!
01:17 PM Tom_L: hah
01:20 PM _unreal_: oh DUHH ve7it I was thinking this motor controller board worked off of a serial interface. Just looked up the chips. There is no serial anything on this board. straight up 8bit input.
01:23 PM _unreal_: so the best solution would be to have an STM32 setup that can take three quadrature inputs and control the boad from that point.
01:23 PM Tom_L: JT-Shop, maybe you should have scooped up some more stuff for him
01:26 PM JT-Shop: I still have my Can Am RT-622 trailer for sale and that's about it
01:39 PM JT-Shop: yup
01:43 PM JT-Shop: got a new aluminum trailer with wood floor to haul the spyder or goldwing so we can travel in comfort and lots of room for luggage
01:43 PM Tom_L: will the ridgeline pull it?
01:44 PM JT-Shop: it can haul 5,000 pounds
02:20 PM roycroft: i was supposed to have my drawers assembled by now, but i still have some machining to finish up
02:21 PM roycroft: somehow i forget to allocate time for sanding
02:22 PM roycroft: forgot, rather
03:48 PM JT-Shop: somehow I forgot to allocate enough space in the garage for a Ridgeline
03:50 PM XXCoder: doh
03:51 PM XXCoder: time to play shop version of rush hour game heh
03:51 PM JT-Shop: been playing the sliding squares game for a month with heavier stuff lol
03:52 PM XXCoder: lol
03:56 PM XXCoder: watching video of guy making drill press vise
03:56 PM XXCoder: thing is that its for miniure drill press hes making. so its real tiny
03:56 PM XXCoder: vise is not part of kit so its completely made by him
04:00 PM XXCoder: pretty cool https://www.youtube.com/watch?v=Nobmbjef7Hc
04:20 PM Centurion_Dan1 is now known as Centurion_Dan
04:23 PM JT-Shop: what no soft jaws?
04:23 PM XXCoder: lol
04:23 PM XXCoder: its drill press jaws, not kurt :)
04:27 PM _unreal_: does anyone here do stm32 programming?
05:11 PM Rhine_Labs: I program but not code.
05:15 PM _unreal_: ?
05:34 PM roycroft: i got my drawers fitted, but not finished
05:34 PM roycroft: and i just set the band saw on the stand - that went really fast
05:34 PM roycroft: i may get all my stuff done today, before dark even
05:37 PM _unreal_: Rhine_Labs, what do you mean by that?
05:38 PM Rhine_Labs: Burn the chips LOL
05:43 PM * _unreal_ rolls eyes
05:45 PM Rhine_Labs: I should have paid more attention to Physics.. Want to erect a 30' tower on roof but need to figure out how wide I need to go on non penatrating mount Figuring 5' down each side and 10' long
05:46 PM Rhine_Labs: or just go 5 X 5
05:46 PM Rhine_Labs: Will be held down by blocks
05:58 PM CaptHindsight[m]: Rhine_Labs: is this tower made of foam or paper? If the answer is no then ask a structural engineer and don't do this yourself.
06:00 PM Rhine_Labs: Steel..
06:00 PM Rhine_Labs: The antenna on the top will be about 40lbs
06:01 PM _unreal_: A a tower of that size needs to be mounted on a designed cement foundation with internal metal structure
06:02 PM _unreal_: the support cables alone will produce a huge amount of down force
06:02 PM Rhine_Labs: Yea, prob
06:02 PM _unreal_: just placing such a tower would require a crane
06:02 PM Rhine_Labs: Prob just buy a 53' free standing crank up.
06:03 PM Rhine_Labs: Just no room for the ground radials
06:03 PM Rhine_Labs: Oops.. thought i was posting in #hamradio my bad
06:03 PM CaptHindsight[m]: wind load more than weight of the antenna
06:04 PM CaptHindsight[m]: the concrete blocks required to hold that tower will likely exceed the load capacity of the roof
06:05 PM Rhine_Labs: https://ispsat.com/product/non-penetrating-ridge-roof-peak-mount-with-2-7-8-od-2-88-od-x-3-mast/
06:05 PM Rhine_Labs: But Much lrger
06:14 PM Rhine_Labs: https://www.aisatellite.com/wp-content/uploads/2019/04/PXL_20210513_190756977-scaled-e1620933657919.jpg
06:17 PM CaptHindsight[m]: with 30 ft open truss tower on top of that?
06:18 PM CaptHindsight[m]: 30 ft tower without an antenna has ~20K lbs of force at 100mph
06:18 PM Rhine_Labs: Yea, prob will not work.
06:19 PM Rhine_Labs: Maybe a 20' 2.5' Mast.
06:20 PM Rhine_Labs: similar footprint as this https://farm3.staticflickr.com/2747/4265425619_90ca757cd7_z.jpg?zz=1
06:21 PM CaptHindsight[m]: http://www.va3cco.com/towersheight.pdf
06:22 PM CaptHindsight[m]: i see guy wires in your pic
06:22 PM CaptHindsight[m]: with or without makes a BIG difference
06:24 PM Rhine_Labs: Yea, the tower i have in mind is a freestanding one alredy on a roof but its a flat roof.
06:25 PM Rhine_Labs: its bolted to the structure 4 bolts each pad.
06:30 PM Rhine_Labs: https://farm8.staticflickr.com/7365/11290624705_3f82e51e30_c.jpg
06:50 PM _unreal_: ve7it, you live?
06:54 PM ve7it: sort of
06:54 PM _unreal_: trying to figure out which STM32 would the ideal choice for the bldc conttroller
06:55 PM _unreal_: that can handle 3 quadrature encoder inputs
06:55 PM _unreal_: I believe the stm32f103 can
06:57 PM _unreal_: ve7it, STM32F103 Up to four 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input according to the docs
06:58 PM _unreal_: so 3 step/dir or quadrature inputs, 3 motor encoder inputs and then outputs to the 8bit DAC
07:00 PM ve7it: try using a stm32f411... 100mhz, 512k flash,128k ram It has hardware floating point instructions.
07:01 PM ve7it: the nucleo kit used to only cost $12 for the board (includes usb programmer)
07:01 PM _unreal_: just need to find the smallest one I can
07:01 PM _unreal_: like the maple leaf
07:03 PM ve7it: https://www.st.com/en/microcontrollers-microprocessors/stm32f411re.html but lead times are a killer now... mouser reports > 52 weeks for the chip
07:05 PM ve7it: nobody has stock... avnet, arrow, digikey, stm, mouser
07:07 PM _unreal_: hence I cant use it
07:07 PM _unreal_: hehe
07:10 PM _unreal_: amazon has stm32f401's
07:10 PM roycroft: i'm not particularly happy with jet at the moment, and i've been a satisfied customer of theirs for decades
07:10 PM ve7it: https://www.amazon.com/ALLPARTZ-Waveshare-XNUCLEO-F411RE-Improved-NUCLEO/dp/B07KJBC2PH/ref=sr_1_41?keywords=NUCLEO-F411RE&qid=1638147217&sr=8-41
07:10 PM ve7it: not an st product, but it seems available
07:10 PM roycroft: for starters, my saw table was rusty, and there was no insert for it, although the owner's manual claims that one was pre-installed
07:11 PM roycroft: that's not a huge deal - i'll get them to send me one, and i'll derust the table as part of my tuning up procedure
07:11 PM roycroft: but then i went to install a blade, and while the upper blade guides are easy to adjust, the lower ones are a pain in the butt
07:12 PM roycroft: but i finally got that done, then i went to do the voltage conversion
07:12 PM roycroft: and the way things are installed, i had to lower the motor and remove the drive wheel to get access to the motor cover
07:13 PM roycroft: and the power switch is not magnetic, and it too will be a pain to replace
07:13 PM _unreal_: no prime so its not in the USA
07:13 PM ve7it: https://www.amazon.com/SongHe-STM32F401-Development-STM32F401CCU6-Learning/dp/B07XBWGF9M/ref=sr_1_3
07:13 PM _unreal_: estimated delivery feb
07:13 PM roycroft: the switch and power conversion things are one-time deals, so i'll get past that
07:14 PM roycroft: but the lower blade guide adjustment is just utter crap
07:14 PM _unreal_: ve7it, ya thats the one I'm looking at
07:14 PM roycroft: i cannot understand why this saw gets such high ratings
07:14 PM _unreal_: its PRIME so its here in the USA
07:14 PM ve7it: not bad, but 401 floating point may be slow
07:15 PM _unreal_: ve7it, just ordered those
07:16 PM _unreal_: its my only choice
07:18 PM ve7it: port the code and see if it runs fast enough... the online mbed environment has a pretty small learning curve
07:18 PM _unreal_: I also just ordered replacement nintendo cartrage adapters
07:18 PM _unreal_: ?
07:18 PM ve7it: gotto run and load up the wood stove before it gets dark... ttyl
07:33 PM t4nk_freenode: mmzmmzzzz f401... *brr*
07:33 PM * t4nk_freenode wouldn't have
07:35 PM t4nk_freenode: don't you already have a couple of stm32 boards, _unreal_?
07:35 PM t4nk_freenode: I believe so, right?
07:36 PM t4nk_freenode: at least some f103's I'm sure
07:51 PM CaptHindsight[m]: ve7it: have you seen Remora?
07:52 PM CaptHindsight[m]: that group is finding lots of cheap and available stm32 boards
08:12 PM _unreal_: yes I have those t4nk_freenode but ve7it does not believe they are powerful enough to drive 3 motors with encoders
08:14 PM _unreal_: t4nk_freenode, I have an STM32f4 discovery, a random mach3 china board which wont work regardless. and the olimexino-stm32
08:16 PM t4nk_freenode: the discovery board should be fine
08:25 PM _unreal_: I have no plans to use the discovery board as a final use device regardless. too large for starters
08:28 PM t4nk_freenode: hehe
08:29 PM _unreal_: regardless I just ordered the stm32f401's
08:29 PM _unreal_: should be fine
08:36 PM t4nk_freenode: lol
08:36 PM t4nk_freenode: you got this man, I know you do ;)
09:15 PM CaptHindsight[m]: https://github.com/bigtreetech/BIGTREETECH-SKR-PRO-V1.1/blob/master/SKR-PRO-V1.2/manual/SKR-PRO-V1.2PIN.PDF
09:15 PM roycroft: well the black friday spam is slowing down
09:15 PM roycroft: as the cyber monday spam is ramping up
09:17 PM CaptHindsight[m]: https://www.aliexpress.com/item/1005001798664558.html
09:18 PM CaptHindsight[m]: https://www.aliexpress.com/item/1005001580514204.html
09:18 PM CaptHindsight[m]: https://www.amazon.com/DEVMO-STM32F407VET6-Cortex-M4-Minimum-Development/dp/B08HK7JGG3/
09:19 PM CaptHindsight[m]: https://stm32-base.org/boards/STM32F407VET6-STM32-F4VE-V2.0.html
09:19 PM CaptHindsight[m]: https://os.mbed.com/users/hudakz/code/STM32F407VET6_Hello/
09:19 PM roycroft: vectric products have a post-processor file for linuxcnc
09:19 PM roycroft: that is encouraging
09:19 PM CaptHindsight[m]: https://www.aliexpress.com/item/32618222721.html
09:19 PM * roycroft is done with aliexpress for a few years again
09:20 PM CaptHindsight[m]: https://www.vectric.com/products
09:20 PM CaptHindsight[m]: ve7it: most of those links are for you ^^
09:21 PM CaptHindsight[m]: roycroft: the fun of dealing with China
09:22 PM CaptHindsight[m]: Confucius say http://www.trees-and-lambdas.info/matushansky/confucius.html
09:22 PM CaptHindsight[m]: some are true
09:22 PM roycroft: i've tried purchasing from aliexpress twice
09:22 PM roycroft: both times things went horribly
09:23 PM roycroft: the first time i never received product nor a refund
09:23 PM roycroft: the second time the product was defective, i got an rma, shipped it back, and did not get a refund, but fortunately i was able to do a chargeback with my credit card company
09:24 PM CaptHindsight[m]: people are complaining about Amazon making returns more difficult already this season
09:24 PM CaptHindsight[m]: so get used to it
09:24 PM roycroft: but even so "not losing my money" is not an acceptable outcome
09:24 PM CaptHindsight[m]: "but they were so convenient"
09:24 PM roycroft: i don't have any trouble returning things at amazon
09:25 PM roycroft: it may be that i have a business account with them
09:25 PM roycroft: as well, i don't return things for no reason
09:25 PM CaptHindsight[m]: same here but I rarely use it
09:26 PM CaptHindsight[m]: it's just as convenient as they promise
09:26 PM CaptHindsight[m]: most of my amazon deliveries get delayed
09:26 PM CaptHindsight[m]: and now the nearby 24/7 locker is already gone
09:26 PM roycroft: i've never used their lockers, nor picked up orders at whole foods
09:27 PM roycroft: i also do not have prime, and have never paid for shipping
09:27 PM roycroft: i just use their free supersaver shipping, and get my stuff whenever it arrives
09:27 PM CaptHindsight[m]: i used the locker since the drivers were too lazy to knock
09:27 PM CaptHindsight[m]: just slow down, and say "customer unavailable or closed"
09:28 PM CaptHindsight[m]: guess i need to put up an animated lighted sign when they drive up and video record them
09:28 PM CaptHindsight[m]: place on youtube and bitch about their crappy drivers or similar to make any difference
09:29 PM CaptHindsight[m]: social media still seems to the best way to get the attention of customer service
09:30 PM CaptHindsight[m]: but not for much longer as it will be business as usual
09:31 PM CaptHindsight[m]: the under 40 crowd is just used to poor customer service
09:31 PM CaptHindsight[m]: they don't even notice
09:32 PM t4nk_freenode: the boards've really gotten expensive, CaptHindsight[m]
09:32 PM t4nk_freenode: 9euro vs 25euro now
09:33 PM CaptHindsight[m]: as supply catches back up with demand the prices will stick high
09:33 PM t4nk_freenode: I'm afraid so
09:33 PM t4nk_freenode: ...
09:34 PM CaptHindsight[m]: not until sales drop by more than 50% in volume
09:34 PM CaptHindsight[m]: it's not magic
09:35 PM CaptHindsight[m]: and it's not inflation
09:35 PM roycroft: it's opportunism
09:36 PM roycroft: sometimes referred to as extended windfall profiteering
09:56 PM CaptHindsight[m]: https://i.ebayimg.com/images/g/-sEAAOSwqktdXx6M/s-l1600.jpg if you order this holder does it arrive as new but as beat to shit as the one in this pic?
10:00 PM aaroncnc: CaptHindsight[m], depends who ships it. i just love watching my cameras and seeing a package thrown over my fence in the middle of my driveway.
10:01 PM CaptHindsight[m]: aaroncnc: Amazon delivery is the worst right now
10:01 PM CaptHindsight[m]: Fedex is 2nd
10:02 PM CaptHindsight[m]: UPS is great IF it makes the brown truck
10:02 PM CaptHindsight[m]: between depots no so much
10:04 PM aaroncnc: i used to think DHL was great but they have delivered my packages 2 out of 7 times to the wrong place in the past 3 months. and not like 1 place over but over 1 mile away. i have to call and complain and show video showing the package was never delivered then they "find it" and say that i can drive to x place and get it or a driver will go in the next 1-2 days and pick it back up and bring it to me....
10:15 PM roycroft: i think that depends on where you are
10:15 PM roycroft: i really would not know about amazon delivery, as they've only delivered directly to me a couple times
10:15 PM roycroft: ups are routinely delayed
10:15 PM roycroft: fedex are probably the most on-time, reliable courier here
10:16 PM roycroft: usps service is quite variable
10:16 PM roycroft: dhl are easily the worst
10:38 PM CaptHindsight[m]: Fedex on the west coast seems good from most I hear from and UPS on the west is poor
10:38 PM CaptHindsight[m]: i find the opposite in the midwest
10:39 PM roycroft: anything shipped from back east by ups is almost guaranteed to have a delivery exception
10:39 PM Tom_L: both seem decent here for the most part
10:39 PM roycroft: usually a 'weather delay' in a part of the country that is not experiencing any severe weather
10:39 PM CaptHindsight[m]: from the USA to and from international destinations I have better service from UPS than Fedex
10:40 PM roycroft: i haven't shipped overseas in a long time, but when i did (20-25 years ago), ups had a better customs brokerage service than any other carrier
10:40 PM CaptHindsight[m]: UPS freight on the east coast always requires a call to get them to actually pick up as planned
10:43 PM roycroft: the paradigm for the 21st century is converging on "lower your expectations", which is applied almost everywhere
11:46 PM CaptHindsight[m]: we are going to make you give us you cell number so we can send you a authorization code when we notice suspicious activity on your account such as logging in and using your account
11:51 PM CaptHindsight[m]: "lower your expectations for quality, customer service, reliability, punctuality, your privacy, etc"