#linuxcnc Logs

Nov 28 2019

#linuxcnc Calendar

01:50 AM Loetmichel: drdoc: i am now... at 04:06 you have NO chance getting me, i am NOT a morning person ;)
01:58 AM Deejay: moin
02:03 AM * Loetmichel uses an $45 shopvac in the shop. Fourth one now... they seem to eat brushes when used as a vacuum source for the CNC mill vacuum bed 8 hours a day
02:04 AM Loetmichel: but a that price its simply useless to repair them.
02:04 AM Loetmichel: moin Deejay
04:10 AM -!- #linuxcnc mode set to +v by ChanServ
04:29 AM SpeedEvil: Brushes are cheap
04:29 AM XXCoder: Loetmichel: make a dyson seperator by 3d printer
04:30 AM XXCoder: seperates abuse from vacuum machine
04:32 AM XXCoder: example https://www.thingiverse.com/thing:2104717 Loetmichel
04:36 AM XXCoder: Javabean: finally watching the videp
04:45 AM Loetmichel: XXCoder: the abuse is the runtime, not dust
04:45 AM XXCoder: ah hm yeah
04:45 AM XXCoder: maybe you can build new one thats brushless
04:46 AM Loetmichel: these cheap shopvacs are not meant to run 8 hours a day continously
04:46 AM XXCoder: weaker tho
05:02 AM Tom_L: morning
05:04 AM XXCoder: man first gage block creation is crazy
05:26 AM jthornton: morning
05:26 AM XXCoder: jey
05:27 AM jthornton: dang my hip is sore today
05:27 AM XXCoder: jt I ordered a tool holder taper, 1/4 gage pin and 6.35mm er11 so I can show it to kids in couple months
05:27 AM XXCoder: I finally got er11 and its 6mm :(
05:27 AM Tom_L: morning jt
05:27 AM XXCoder: (6.35mm = 1/4 inch)
05:27 AM jthornton: why not get a 1/4" er11
05:28 AM XXCoder: well didnt want to pay higher price lol
05:28 AM XXCoder: since its demo and not running in machine
05:29 AM Tom_L: 35F, Hi 38 & rain
05:30 AM jthornton: 37°F High 41°F chance of rain/sleet then rain... going to be fun smoking the ribs
05:31 AM XXCoder: its snowing at south oregon and north calfornia lol
05:31 AM Tom_L: rock didn't screw up the rim did it?
05:31 AM jthornton: 40% sleet 60% rain adds up to 100% lol
05:31 AM XXCoder: no snow here, air is super dry now
05:31 AM Tom_L: you should be more careful... we're not kids anymore
05:31 AM XXCoder: almost need to blink twice as often type dry
05:31 AM jthornton: no, I was going slow across the creek trying to keep my shoes dry lol
05:32 AM * Loetmichel just did a "cybertruck presenter"... "Look, boss, those 3d-printed braces are rigid as hell!" *HRRRNG, beeeend* *KNACK* "uuups!" :-)
05:32 AM jthornton: yes mother
05:35 AM Tom_L: i'm about to give up trying to get this usb jtag working in linux
05:35 AM Tom_L: i've tried buster and stretch and neither one want to cooperate
05:35 AM jthornton: I'm still trying to make a simple hello world deb that installs a menu shortcut lol
05:39 AM Tom_L: says i'm missing windrvr6 but i'm not sure where to get it
05:39 AM Tom_L: may be part of a kernel build thing
05:40 AM Tom_L: i've tried with and without a RT kernel
05:42 AM jthornton: https://forums.xilinx.com/t5/Vivado-Debug-and-Power/install-windrvr6-on-Linux-64-bit/td-p/383299
05:42 AM jthornton: looks like it is a known issue
05:43 AM Tom_L: yeah
05:43 AM Tom_L: it's working in windows, i just wanted to get it working in linux if i can
05:44 AM Tom_L: https://www.george-smart.co.uk/fpga/xilinx_jtag_linux/
05:44 AM Tom_L: even tried his driver and it's closer but not there
05:45 AM Tom_L: i think it can be built from kernel source but i dunno how to get that
06:50 AM Elmo40: Javabean, custom machine?
07:10 AM _unreal_: yawn
07:14 AM _unreal_: jthornton, I feel your pain in regards to programming, I can only dabble with arduino
07:14 AM jthornton: yea it's just a lack of good information
07:14 AM _unreal_: for me, TOTAL lack of desire to study coding
07:21 AM _unreal_: net split
07:24 AM Javabean: Elmo40: yes
08:16 AM jymmmm: !!! HAPPY THANKSGIVING !!!
08:16 AM jymmmm: !!! HAPPY THANKSGIVING !!!
08:16 AM jymmmm: !!! HAPPY THANKSGIVING !!!
08:21 AM XXCoder: lol
08:25 AM gregcnc: mmmm stuffing
08:40 AM jthornton: yum ribs
08:58 AM jymmmm: jthornton: babyback?
08:59 AM jymmmm: Alrught, who's the first to make a cnc carving knife??? lol
09:12 AM Rab: jymmmm, like this? https://66.media.tumblr.com/f81444e3e56987a221f60ff8a1374d4c/tumblr_nfj0mksF7m1s2wio8o7_500.gifv
09:32 AM jymmmm: https://i.imgur.com/M5XxXjG.jpg
09:32 AM jymmmm: Rab: close ;)
09:40 AM JT-Shop: yes babyback, just seasoned it up
10:04 AM Loetmichel: hihi, just got a "gift" keychain flashlight with a delivery. the "matchbox with 3 leds, button, 2 button cells in series and a solar cell" kind... dismantled to see if thats really a solar cell: it indeed has two contact pads that put out 6.6V when shine on with bright light. WTF they didnt bothered to connect it to the battery??? connected the -, conected the + with a diode in series,
10:04 AM Loetmichel: measured charging current under bright light: 0.18mA... "ah, thats why!" :-)
10:04 AM Loetmichel: ups sorry
10:04 AM Loetmichel: wasnt meant to be bold
10:18 AM drdoc: Loetmichel: I don't even try to keep up with IRC time zones
10:18 AM drdoc: ;-)
10:20 AM drdoc: y'all were discussing thermal recovery in cars & IC engines
10:20 AM Loetmichel: yeah, four hours back
10:20 AM Loetmichel: i usually go to sleep at midnight ;)
10:25 AM drdoc: heh
10:25 AM Tom_L: how silly is that...
10:25 AM drdoc: anyway if you're interested in thermal recovery/conversion, you should look at the current Formula One cars
10:26 AM drdoc: the rules changed a few years ago limiting engine displacement to something like 2.4L
10:27 AM drdoc: the design teams naturally went nuts looking for horsepower
10:28 AM drdoc: they use an electric motor on the transmission PTO to boost acceleration now
10:29 AM Tom_L: they should go all electric and just have a generator
10:29 AM drdoc: ...which also acts as a generator/engine brake on *decceleration*
10:29 AM Tom_L: wouldn't that sound funny on the track
10:30 AM drdoc: Tom_L: they get a total of 750-900HP out of those little bastards
10:30 AM Tom_L: they're probably shot when the race is over too
10:30 AM drdoc: and they *do* sound funny on the track
10:30 AM drdoc: oh hell yes
10:32 AM Tom_L: so they've improved a bit since the Offy?
10:32 AM drdoc: I don't remember the actual numbers but fielding a contending F1 team costs the NGP of a middle-sized country
10:33 AM Tom_L: probably the same with nascar
10:33 AM Tom_L: how many carts does a F1 team have?
10:33 AM drdoc: Tom_L: I'm a lot more into garage-built motoX cars than F1
10:33 AM drdoc: or homegrown drag racers, cars or motorcycles
10:34 AM drdoc: but the sheer ingenuity of the F1 designs is fascinating
10:34 AM drdoc: the races are boring
10:34 AM Tom_L: helped a friend with an alcohol funny car years back
10:35 AM drdoc: fun fact: I watched an original-parts restored Model T run an 1/8th-mile a couple of years ago, at Little River Dragway
10:35 AM CaptHindsight: all electric and self driving and then just make them virtual, what is the point anymore?
10:35 AM drdoc: turned a 34-second time!
10:36 AM Tom_L: CaptHindsight the carbon footprint
10:36 AM CaptHindsight: auto racing used to be about mechanical and chemical power
10:36 AM CaptHindsight: electrical is not the same race/competition
10:37 AM drdoc: CaptHindsight: with the new rules and the dev money that's in it, the trickle-back tech is about all there is
10:37 AM CaptHindsight: what is the point?
10:37 AM drdoc: to me? none
10:37 AM CaptHindsight: inthe past it's like comparing horse racing to the auto
10:38 AM CaptHindsight: not the same race
10:38 AM drdoc: I love the drags at Little River
10:38 AM drdoc: those guys spend every weekend on a car or bike that runs 2-3 miles a year
10:39 AM Tom_L: those are hair raising miles
10:39 AM drdoc: *that* is about skill and experience, plus a lot of luck
10:39 AM drdoc: Tom_L: no doubt
10:39 AM Tom_L: i found that boreing actually
10:40 AM CaptHindsight: the carbon footprint argument is absurd, sure it pollutes
10:40 AM Tom_L: sit and wait and wait then run for 3-4 sec and sit and wait and wait...
10:40 AM drdoc: I ran a Kawi Mach III in "unofficial" quarter-miles in the early '80s
10:41 AM drdoc: when you can feel the swingarm twisting on shifting gears, it gets scary fast
10:42 AM CaptHindsight: race driving is not for everyone
10:42 AM drdoc: *me* loves it
10:42 AM drdoc: heh
10:42 AM * drdoc that is
10:42 AM drdoc: my whole family lead-footed psychos
10:43 AM drdoc: my paternal grandmother got taken to jail at 68 years old
10:43 AM CaptHindsight: are the Teslas still dealer only for repairs?
10:44 AM drdoc: got busted doing 119mph on I-20 in New Mexico
10:44 AM Tom_L: CaptHindsight, would you take one to a local roadside mechanic?
10:45 AM Tom_L: i doubt O'rileys has parts for them
10:45 AM * drdoc giggles
10:45 AM CaptHindsight: so we are close to can't repair yourself and it tracks you vehicles
10:45 AM Tom_L: maybe brake pads etc
10:45 AM Tom_L: CaptHindsight the world in general want's to know what you're up to
10:46 AM drdoc: CaptHindsight: the 1990 Dodge Dakota had a flag in the OBC unit
10:46 AM CaptHindsight: likely to be rental only or as a service vs own the cars
10:46 AM Tom_L: so you check in with a smart phone just like those scooters etc and they still track you
10:46 AM CaptHindsight: Tom_L: oh you noticed
10:46 AM drdoc: if you ran it at over some not-unreasonable speed it recorded that and Chrysler voided the warranty
10:47 AM drdoc: so that "it tracks you" has been happening for decades
10:47 AM gregcnc: speedometer or tachometer
10:48 AM drdoc: no idea
10:48 AM gregcnc: probably tach, aka money shift?
10:49 AM drdoc: I just remember my friend screaming about losing the warranty on his 2-week-old Dakota
10:49 AM gregcnc: a buddy told me he had an 80's escort (US) that was speed limited in 5th to like 115. but would go muhc faster in 4th
10:49 AM drdoc: he went in for the 500-mile oil change and they charged him
10:50 AM drdoc: gregcnc: that was pretty easy to disable
10:50 AM drdoc: a lot of drillers used escorts for crew cars
10:51 AM gregcnc: before my time
10:51 AM drdoc: very good gas mileage, you could fit 4 *big* roughnecks pretty comfortably
10:51 AM CaptHindsight: we tried to turn off the microphone in a rental Toyota and it started dialing 911
10:51 AM gregcnc: i did have a 96 dakota with V8 and manual
10:51 AM drdoc: and 3 of us could lift any corner of the car to shove a jack under it
10:51 AM CaptHindsight: it had OFF as an option
10:52 AM Tom_L: they just didn't tell you what that option did
10:52 AM drdoc: lol
10:52 AM Tom_L: tricky bastards
10:52 AM tiwake: toyota seems to like producing crappy programming
10:52 AM CaptHindsight: what it didn't mention was "it will dial 911 if you do"
10:52 AM drdoc: gregcnc: I loved my V6 '96 Dakota
10:52 AM gregcnc: loved the rust too?
10:53 AM drdoc: mine never did that
10:53 AM gregcnc: they all rust here
10:53 AM drdoc: I did saw the shaft off the 3rd waterpump, though
10:53 AM Tom_L: so when your car gets stolen, the cops can have a 2 way conversation with the thief now
10:53 AM drdoc: put an electric fan in
10:54 AM gregcnc: I had 205k on it when I sold it, and bought it with 65k.
10:54 AM drdoc: the V6 had the worst waterpump/fan design ever
10:54 AM CaptHindsight: wonder what year will be the time that you'll have to have a tracking device or an all electric vehicle?
10:55 AM Tom_L: they cover the whole 'invation of privacy' thing with Onstar
10:55 AM gregcnc: different that the V8?
10:55 AM gregcnc: I thought they just chopped two cylinders off the entire design
10:55 AM drdoc: gregcnc: no, my Ram 1500 had the same issues
10:55 AM CaptHindsight: 10 years or closer to 20 more?
10:55 AM drdoc: CaptHindsight: I'd bet <5
10:56 AM gregcnc: in the US?
10:56 AM drdoc: yes
10:56 AM gregcnc: no way
10:56 AM CaptHindsight: done mostly through insurance rates
10:57 AM Tom_L: sure way, they'll just figure out a way to do it without telling you
10:57 AM drdoc: gregcnc: it hasn't been that long since the American Public was outraged by the FBI collecting data on phone calls
10:57 AM gregcnc: I can see mileage based tax though
10:57 AM CaptHindsight: it's for your protection
10:57 AM drdoc: instead of a fight over that, we got Google
10:58 AM drdoc: my daughter sees absolutely no problem with signing into everything she does from her Google account
10:58 AM CaptHindsight: seems that getting rid of private vehicles would be best for the Oligarchs
10:58 AM CaptHindsight: everyone just pays per ride
10:58 AM CaptHindsight: no privacy on the road
10:59 AM gregcnc: if we didn't need more than 500 miles of range the switch could happen much faster
10:59 AM drdoc: are any of y'all old enough to have seen "Rollerball"?
10:59 AM CaptHindsight: 70's or 00's version?
10:59 AM * drdoc didn't know there was a remake
10:59 AM drdoc: :-)
11:00 AM CaptHindsight: heh yeah 2002
11:00 AM drdoc: we're already living in a global water empire
11:00 AM CaptHindsight: pay per drink of water
11:01 AM drdoc: that term doesn't describe just water
11:01 AM CaptHindsight: where can you go today to take a vacation away from stupid?
11:01 AM drdoc: a drilling rig
11:01 AM drdoc: seriously.
11:02 AM drdoc: Although the necessary un-stupid has declined since I was a roughneck
11:02 AM drdoc: in the '80s roughnecks had something like the second-highest average IQ of any profession in the US
11:04 AM drdoc: the guys who couldn't think quick, solve problems on their feet, and act decisively either got gone or got dead fast
11:06 AM CaptHindsight: gobble gobble
11:07 AM CaptHindsight: gregcnc: engine swap or pull and overhaul? the BMW
12:03 PM gregcnc: swap with one supposedly out of a good rear ended car, forgot to plug in the DISA valve just drove it again no codes
12:04 PM gregcnc: capthindsight the guy that sold me the engine works at Francen on algonquin
12:07 PM CaptHindsight: short trip, seems whenever I need an engine or trans its a long haul
12:08 PM gregcnc: he actually lives in CL. it showed up on CL and was close so I finally decided it was time to get this done.
12:09 PM skunkworks: craigs list?
12:09 PM skunkworks: A lot of people live there...
12:10 PM gregcnc: first CL is Crystal Lake, second is Craigslist if you live here you know
12:10 PM gregcnc: my old 97 328iS now will get parked in the garage for all the seals and suspension work i've neglected
12:12 PM gregcnc: marks it's territory in the driveway
12:14 PM CaptHindsight: skunkworks: did you get dumped with snow? we mostly got wind
12:22 PM skunkworks: we got about 2 inches
12:26 PM skunkworks: packy
12:46 PM jymmmm: CaptHindsight: https://i.imgur.com/M5XxXjG.jpg
12:48 PM jymmmm: CaptHindsight: lol, more like freezing your butt/feet off :)
12:48 PM CaptHindsight: oh that's right, we call that mild here
12:50 PM jymmmm: CaptHindsight: It's deeper higheer up the mountain, but no 4x4
12:52 PM * Javabean misses snow
03:08 PM _unreal_: I should go take a photo of what it looks like outside for me :)
03:12 PM _unreal_: uploading two photos :)
03:13 PM _unreal_: https://drive.google.com/open?id=1d5Krkpzcgrggd4nSSI3S2tEpju_H94dD
03:13 PM _unreal_: :) happy thanks giving
03:13 PM _unreal_: btw I just picked that
03:15 PM _unreal_: ve7it, hi
03:16 PM jthornton: ender 3 starts a print then the temperature starts to fall a bit then I get a thermal runaway error...
03:16 PM _unreal_: jthornton, like my photo?
03:16 PM _unreal_: ve7it, you live?
03:16 PM jthornton: didn't see it yet...
03:17 PM Deejay: gn8
03:19 PM ve7it: _unreal_, yup
03:19 PM jthornton: dark and cold rain here... smoking in the rain
03:22 PM ve7it: jthornton, does the ender3d have an lcd display of nozzle temp and bed temp?... could be possible break in the thermister wire or in the heater wire.. display should let you know if sensor is going bezerk
03:23 PM ve7it: jthornton, I have the cr-10mini
03:23 PM jthornton: yes, I had it all apart cleaning out a clogged nozzle and now I'm doing an autotune of the extruder pid
03:26 PM ve7it: ah... clogged extruders are a pain... I havent paid much attention when I have had clogs, not sure if they are tied to a specific roll of filament... on the next one, I will mark the roll in case its related to bad filament
03:27 PM ve7it: I have cleared mine by removing the nozzle, heating it with a soldering iron and cleaning the gunk out with a drill bit and the cleaning needle... usually good for a few hot finger curses
03:28 PM jthornton: lol
03:29 PM jthornton: I don't think I had the bowden tube all the way down and the result was a clog]
03:29 PM ve7it: :}
03:29 PM jthornton: pid tuning done lets see... oh yea the screw was a bit loose on the thermocouple when I took it apart
03:31 PM ve7it: could be it..... these printers are a real lesson on figuring out how stuff works... electrical, mechanical, thermal.. amazing tech, but I wonder how many people get too frustrated and just give up
03:33 PM _unreal_: hi
03:33 PM _unreal_: was outside for a moment
03:33 PM _unreal_: ve7it, is this your page?
03:33 PM _unreal_: http://ve7it.cowlug.org/index.htm
03:34 PM _unreal_: jthornton, what cha think of my photo?
03:34 PM _unreal_: :)
03:34 PM ve7it: unreal yes... did you have some questions on the servo drives?
03:34 PM _unreal_: yes
03:34 PM _unreal_: a3936sed
03:34 PM _unreal_: I work on luxury yachts and get marine satalites every now and then
03:34 PM _unreal_: they just toss them out
03:34 PM _unreal_: so amazing BLDC motors and other parts.
03:35 PM _unreal_: wondering how hard it would be to convert your dspic to control the a3836sed?
03:35 PM _unreal_: for BLDC
03:35 PM _unreal_: I have these boards that are super simple
03:35 PM _unreal_: ve7it, on the right https://drive.google.com/open?id=1J-ANuw6LuvICQh0KfGCSdUA45ma-cBri
03:36 PM _unreal_: all parts are on one side
03:36 PM _unreal_: they use a max505bcng to drive all 3 bldc motor controllers
03:37 PM _unreal_: it would be amazing to use your setup to drive these chips for a BLDC closed loop system
03:37 PM _unreal_: the board would need a slightly different design
03:38 PM _unreal_: ve7it, ?
03:38 PM ve7it: possible I guess, all the code is in C, so really, you could reuse the command structure, the PID loops and just figure out how to talk with the driver chips... depending on how smart the driver chips are, all you may need to do is send them commands for speed and direction
03:38 PM jthornton: still getting huge temperature swings :(
03:39 PM _unreal_: the drivers I believe are voltage driven
03:39 PM _unreal_: direction pin and voltage
03:39 PM _unreal_: so the max505 is a serial to voltage driver
03:41 PM ve7it: hmmm.. quad 8 bit DAC.. should not be too hard to talk to with the dspic
03:41 PM _unreal_: ve7it, your in canada ya?
03:41 PM _unreal_: I could send you a board and one of my BLDC's if interested
03:43 PM Tom_L: raining a bit earlier
03:43 PM Tom_L: let up a bit now
03:44 PM ve7it: yup, on the west coast
03:44 PM _unreal_: what kills me is more often then not the bldc with a line encoder mounted on it typically have a bad bearing on the motor. but the motors with out quadrature line encoder one's are almost always fine.
03:45 PM _unreal_: ve7it, these motor controllers typically sell for $5+ USD on digikey etc...
03:46 PM _unreal_: but as I said if your interested in one of the BLDC motors and one of these controller boards I'll send you one, if your interested in trying to add a brushless option to your already existing code
03:46 PM _unreal_: ve7it, BTW I have the same motors brushed motors on hand
03:46 PM Tom_L: how big are they?
03:46 PM ve7it: having the motors with encoder and the driver chips is 90% of the project.... just a simple mater of programming!
03:47 PM _unreal_: I'm working on building my new home cnc machine and I'm using brushed servos. but I have a nice brushless with encoder that would be great for the Z
03:47 PM _unreal_: Tom_L, how big are what?
03:47 PM Tom_L: the motors
03:47 PM _unreal_: the non encoder one's are nema23 22oz/in
03:47 PM _unreal_: that just have hall sensors
03:47 PM Tom_L: not big enough for a spindle
03:47 PM _unreal_: the one's with encoders are about 2.5x the size
03:47 PM ve7it: _unreal_, let me have a quick look at the driver data sheet
03:48 PM _unreal_: tom I'm looking at servo not spindle
03:48 PM Tom_L: i'm on the lookout for a spindle motor
03:48 PM Tom_L: no rush though
03:48 PM _unreal_: Tom_L, same
03:48 PM _unreal_: I have an amazing spindle motor controller though :)
03:48 PM Tom_L: low end torque upwards to about 6krpm or so
03:48 PM Tom_L: mayb 10 tops
03:49 PM Tom_L: 20k rpm with low end torque would be awesome but i'll never find it
03:50 PM _unreal_: Tom_L, kbbc-24m
03:50 PM Tom_L: something similar on the sherline motor control
03:50 PM _unreal_: 40amp control though :)
03:51 PM Tom_L: i like the fact mine is line powered
03:51 PM _unreal_: Tom_L, My goal is likely going to be use that with a simple encoder, tick counter to maintain speed
03:52 PM _unreal_: I have some really nice optical RPM encoders for motors
03:52 PM _unreal_: good for upto 250k RPM
03:52 PM Tom_L: you need a control able to read that fast
03:53 PM _unreal_: I'd need a motor capable of that fast
03:53 PM _unreal_: :)
03:53 PM Tom_L: nothing i know of will turn 250k rpm
03:55 PM _unreal_: ve7it, cd4051bcn, max505bcng, cd4099be and the a3936sed'S are all that are on the board. ONLY one motor controller on the board is setup to read all 3 hall sensors. the other two only read a single hall. the one for reading all three hall sensors in the BLDC motors has an encoder as well I believe 256 line
03:56 PM _unreal_: ve7it, https://drive.google.com/open?id=11rRfUwgvbw0m47y3En9ytUBXOHl5YvJn
03:57 PM _unreal_: Tom_L, could you just imagine a 250k rpm 1/4" end mill
03:57 PM _unreal_: GOOD LORD
03:57 PM _unreal_: would make for crazy smooth finishes
03:57 PM _unreal_: so long as the machine was inside a bullet proof case
03:57 PM Tom_L: or balistics
03:57 PM _unreal_: :)
03:58 PM Tom_L: my kid had a spindle cut loose at 20k rpm... scared the crap outta him
03:58 PM _unreal_: Tom_L, https://drive.google.com/open?id=1d5Krkpzcgrggd4nSSI3S2tEpju_H94dD
03:59 PM _unreal_: heh
03:59 PM Tom_L: saw that
03:59 PM _unreal_: ahh
03:59 PM SpeedEvil: https://www.youtube.com/watch?v=IIQu1e8DGUw owie - on chainsaw angle grinder disks.
03:59 PM _unreal_: ya I just picked it
04:00 PM Tom_L: aparently they're not limited to chain saws
04:00 PM _unreal_: I'm around got to go do some cooking for a few
04:00 PM _unreal_: heh
04:00 PM _unreal_: brb
04:10 PM ve7it: _unreal_, digikey says those drivers are obsolete... kind of a pain if one lets the smoke out!. I am having trouble seeing how the drivers get driven on the data sheet... it says they are pwm current control, but they dont show a typical application. There may some application notes on line somewhere.
04:13 PM _unreal_: could be
04:13 PM _unreal_: I've only done a little research
04:13 PM _unreal_: I could trace the pins down
04:14 PM _unreal_: I use to know but its been a long time since I really researched it probing
04:14 PM _unreal_: ve7it, its funny you say that because ALLLLLLL of the dome satallites on the luxury yachts USE the very controller I showed you in the photo
04:14 PM _unreal_: slightly different versions with like .1% changes
04:15 PM _unreal_: regardless even new sats use those chips
04:18 PM _unreal_: I I just brought home a sat yesterday that was built in 2017 and it has the same motor control board
04:18 PM ve7it: I take it these motors are used to control antenna azimuth/elevation... it would be cool if you had a complete working assembly.. would make scoping the unit under operation possible
04:18 PM _unreal_: yes
04:18 PM _unreal_: I have everything
04:18 PM _unreal_: one sec
04:18 PM _unreal_: I'm at my fathers house so if I go quite for a few I'm helping with food
04:18 PM _unreal_: still cooking
04:18 PM _unreal_: going to go snap a quick photo
04:19 PM ve7it: cool
04:22 PM _unreal_: take a sec to upload
04:22 PM _unreal_: these sat's are like 30k each NEW
04:22 PM _unreal_: and they just toss them
04:23 PM _unreal_: ve7it, https://drive.google.com/open?id=1dFY3pm4vfysS3BCXWL54f5nyL_M4Xa41 https://drive.google.com/open?id=1dFzCnE5WyuvpblcYOoAwjGFrkDqiTDGc
04:23 PM ve7it: I would love to find one and use it for scanning for wifi hotspots... An open dish would really make the neighbors paranoid!
04:24 PM _unreal_: :)
04:24 PM _unreal_: they toss them all the time
04:24 PM _unreal_: full XY
04:24 PM _unreal_: 360 degree and with slight adjustment 180 alt.
04:25 PM jthornton: I'm guessing actually having the thermister in the hole of the hot end makes a difference lol
04:28 PM ve7it: jthornton, was it hanging out? some thermal compound in the hole might help with heat transfer
04:28 PM jthornton: yea when I put it back together I didn't put it in the hole I guess...
04:29 PM Tom_L: hitting the hole is an important step....
04:29 PM _unreal_: ;)
04:30 PM ve7it: _unreal_, got to run out for a minute
04:30 PM jthornton: lol the chickens look like they are having a safety meeting all standing around looking at each other
04:31 PM Tom_L: govt workers
04:40 PM _unreal_: jthornton, typical
04:49 PM _unreal_: ve7it, dont run "IN" to anything
04:58 PM _unreal_: ve7it, I can tell you this, from the pdf, the basic design is 99% the same as far as circuit setup.
04:58 PM _unreal_: I believe there are a few extra caps and thats about it. other wise there are those other logic chips I mentioned.
04:58 PM SpeedEvil: I wonder if just ignoring the whole pile, and just swapping in a brushless gimbal controller would be easier
04:59 PM _unreal_: I'd have to probe everything out but from what I remember not many of the pins form any of the logic chips are used.
04:59 PM _unreal_: SpeedEvil, ?
04:59 PM SpeedEvil: https://hobbyking.com/en_us/tarot-zyz22-gopro-brushless-camera-gimbal-controller.html
04:59 PM _unreal_: I though that is what your talking about, a camera gimbal
04:59 PM ve7it: _unreal_, so only 1 of the two motors has an encoder?... is there any evidence of a home switch on the assembly? Maybe just running one of the axis open loop
05:00 PM _unreal_: yes
05:00 PM _unreal_: ve7it, one of the photos I posted you can see the controller
05:00 PM _unreal_: <_unreal_> ve7it, https://drive.google.com/open?id=1dFY3pm4vfysS3BCXWL54f5nyL_M4Xa41 https://drive.google.com/open?id=1dFzCnE5WyuvpblcYOoAwjGFrkDqiTDGc
05:01 PM _unreal_: the DB25 is both motor power and hall sensors and maybe the single quadrature
05:02 PM _unreal_: the lower chip I'd have to look to remember what it is is the main logic that reads the quadrature input and controlls the motors
05:02 PM _unreal_: and its just a serial control
05:02 PM ve7it: is there a db25/motor or are they all combined on 1 connector?
05:02 PM _unreal_: for the power and logic from the main controller for direction
05:02 PM _unreal_: combine
05:03 PM _unreal_: not a great photo of the control board but the I/O and motor outputs are all the db25's
05:04 PM _unreal_: pitch, roll, and yaw
05:04 PM _unreal_: sadly the big encoder motor has bad bearings
05:04 PM ve7it: are there 2 or 3 motors on the assembly? I see 2 in the pix
05:04 PM _unreal_: 4
05:05 PM _unreal_: 3 bldc one stepper
05:05 PM _unreal_: no 5
05:05 PM _unreal_: 3 bldc, one small stepper, and one dc motor with a POT for an encoder
05:06 PM _unreal_: infact the logic board photo you can see the dc motor with a big gear
05:06 PM _unreal_: upper right
05:06 PM _unreal_: the stepper motor does NOTHING but turn a gyro
05:07 PM _unreal_: there is a gryo box that has 3 single axis gyros inside a bod and it has a single pivot
05:07 PM _unreal_: bod=box
05:09 PM _unreal_: ve7it, google "seatel satellite parts"
05:09 PM _unreal_: look at the images
05:11 PM _unreal_: ve7it, https://www.yumpu.com/en/document/read/35455658/seatel-4009-33-vsatpdf-yachtronics helpful info
05:12 PM jthornton: finally got the center of the bed close enough to 0 to print... damn bed is not flat
05:25 PM ve7it: _unreal_, pretty high tech stuff... and from the price lists I saw, pretty high price stuff!
05:25 PM _unreal_: and I get them free :)
05:26 PM ve7it: jthornton, yea... mine was low in the middle... 2 pieces of paper under the glass shimmed it up nicely https://www.thingiverse.com/thing:3742236 you can see the paper in the picture
05:27 PM _unreal_: ve7it, what I'm looking at though is the a3936 would/will be cool to get working BUT the max505 setup is likely the more intersting
05:27 PM jthornton: mine has the black plastic cover... I'll try shimming it up
05:27 PM _unreal_: because that could make it easy to intergrate different controllers, brushed, brushless etc... servos
05:28 PM _unreal_: kind of make a universal servo interface
05:28 PM jthornton: I did get a successful print finally of the InfoPanel for my Eagle Tree Vector
05:29 PM _unreal_: ve7it, https://drive.google.com/open?id=1cZ_rTRuKh85aVzAOJW3WQTf6sAHK0dZi
05:29 PM _unreal_: This is the machine, err new machine I'm building for home
05:29 PM _unreal_: AND
05:29 PM _unreal_: the little one is one I'm biulding for my daughter
05:29 PM _unreal_: I designed the cad drawings my self
05:30 PM _unreal_: https://drive.google.com/open?id=1fNUz8yQsjeJA0Uxd1_SwFodAyful3OVN
05:30 PM jthornton: ve7it, interesting you mounted an indicator on the print head?
05:30 PM jthornton: ah that's the green thingy
05:30 PM _unreal_: back in a few food is 99% done have to go setup the table
05:31 PM ve7it: _unreal_, nice work, the max505 probably sets motor rotation speed? or current? that would be worth tracing out to see what the outputs drive
05:31 PM jthornton: is that magnets on the inside to mount the indicator?
05:32 PM jthornton: very slick and much better than a piece of paper lol
05:32 PM ve7it: jthornton, yes... then I just push the bed around and use the adjusting knobs until its all equal... yes... just helps hold onto the hot end housing
05:32 PM jthornton: the hot end looks the same as the ender 3
05:33 PM ve7it: final tweeks for absolute height is done by turning all knobs up or down until the first layer is good
05:34 PM ve7it: the paper method is still useful to rough tune the heights
05:35 PM ve7it: I started printing on 2" wide masking tape instead of right on the glass.... really makes things stick well
05:35 PM ve7it: but the bed needs to be a little lower (masking tape thickness)
05:36 PM ve7it: it would actually be nice to use the bed knobs for leveling and a vernier on the z home switch to adjust the absolute z height
05:37 PM jthornton: yea
05:37 PM jthornton: did you change the z home switch for a better one?
05:38 PM ve7it: once its right, it just seems to work well, but it can be frustrating figuring out what to teak when there is a problem... I had to rethink things a lot when I tried petg instead of PLA.. temps and printing speed are a lot different
05:38 PM CaptHindsight: who makes the most maintenance free glue gun type printer these days?
05:41 PM ve7it: I have been happy with the creality cr-10mini.. its very similar to the ender3. parts and pieces are easily available and easy to use
05:43 PM ve7it: I have probably printed about 3kg of filament so far.. 2 complet rolls and a bunch of partial rolls.
05:44 PM jthornton: yea once you get it dialed in it seems to print ok... gotta do that indicator thing for the bet
05:44 PM jthornton: bed
05:46 PM jthornton: I'll have to redesign that a bit to fit my indicator and magnets but hell of a good idea, thanks for sharing that
05:47 PM pcw_home: http://freeby.mesanet.com/newmesa.zip
05:47 PM jthornton: temperature is flat now
05:47 PM pcw_home: http://freeby.mesanet.com/xymod.zip
05:49 PM pcw_home: CaptHindsight: LinuxCNC source for xy2-100 plus other new things (newmesa.zip) driver and example hal file (xymod.zip)
05:50 PM pcw_home: (example is for 7I96 but should be easy to change)
05:52 PM CaptHindsight: pcw_home: thanks, got them
05:53 PM pcw_home: still need to change scaling to a pin rather than parameter since you may want to change scale dynamically
05:54 PM pcw_home: but I fixed a couple bugs today so at least the hal part of it works
06:36 PM _unreal_: stuffed
06:36 PM _unreal_: ve7it, yes motor power
06:39 PM skunkworks: quite the yawner.. https://youtu.be/hVkNtq4C1F8
06:39 PM ve7it: jthornton, should not be an issue making it fit your gauge... very simple openscad program
06:58 PM _unreal_: ve7it, this is the only chip that is close to the one I posted https://www.digikey.com/product-detail/en/on-semiconductor/LV8121V-TLM-H/LV8121V-TLM-HOSCT-ND/4707692
06:58 PM _unreal_: different package but same function
07:07 PM _unreal_: ve7it, still around?
07:07 PM ve7it: yup.... looking at that part.... only 35V
07:08 PM _unreal_: the chips I have are run at 24v
07:08 PM _unreal_: most super yachts run at 24v DC
07:08 PM _unreal_: some run 12 but 24v is more common
07:08 PM ve7it: ok... should be close enough
07:09 PM _unreal_: so ve7it if your interested I could send you some of these parts if your willing to try and produce the control conversion :)
07:09 PM _unreal_: I've never mailed to canada though. $ shipping isnt an issue to me
07:18 PM Tom_L: you just stick it in a mail box
07:20 PM _unreal_: not small not light
07:21 PM _unreal_: maybe 2-3 lbs
07:51 PM _unreal_: I'm stuffed
11:05 PM Elmo40: jymmmm, thanks giving was in October... silly 'mericans :-P
11:06 PM Elmo40: Javabean, well, what is the hold up?
11:08 PM Javabean: i could be moving into a new-to-me place tommorrow, or maybe next tuesday, or maybe the week after
11:12 PM Elmo40: larger place?
11:12 PM Elmo40: speaking or size, what is the machine going to be? simple 300x300 or larger? regular cartesian or a corexy?
11:16 PM Javabean: 330x330 hypecube-like printer
11:16 PM Javabean: i cheated, using the actual printed bits from them
11:25 PM _unreal_: hum
11:27 PM _unreal_: well midnight
11:55 PM net|: earl grey... hot...