#garfield Logs
May 29 2021
#garfield Calendar
12:00 AM rue_shop1: I have fun mapping this stuff, it takes 2.5ms for an energized relay coil to make the contacts close
12:07 AM rue_shop1: they might bounce for 1ms after
12:09 AM rue_shop1: aandrew, did you just come back
12:09 AM rue_shop1: ?
12:09 AM aandrew: come back?
12:09 AM rue_shop1: someone just came back...
12:09 AM rue_shop1: saw the nick list move
12:09 AM aandrew: in the channel?
12:10 AM aandrew: ah
12:10 AM aandrew: no I don't think it was me
12:10 AM rue_shop1: I have notifications turned off
12:10 AM rue_shop1: well
12:10 AM rue_shop1: the IGBT for this spot welder
12:10 AM rue_shop1: I suppose I dont need to mount it to a heatsink
12:11 AM rue_shop1: its just single impulse
12:11 AM rue_shop1: I need to come up with a board for it
12:13 AM rue_shop1: listen two two song, tell me if you think there was something going on
12:13 AM rue_shop1: Diana_Ross_and_the_Supremes_-_You_cant_hurry_love
12:13 AM rue_shop1: Hall_And_Oats_-_Maneater
12:13 AM rue_shop1: I think their related
12:18 AM rue_shop1: so I bought the last roll of 14/3 lumex wire form the supplier today
12:18 AM rue_shop1: I think its the end folks
12:18 AM rue_shop1: menufacturing has completely broken down
04:04 AM Tom_L: morning
04:13 AM rue_mohr: haha
04:18 AM Tom_L: the bot did it
04:18 AM Tom_L: <rue_shop1> someone just came back...
04:38 AM rue_mohr: is it having issues? network? internet?
12:36 PM rue_mohr: HAVE TO HURRY, SCRAPPER CLOSES at 1
01:39 PM rue_mohr: ok, thats shower and breakfast
01:39 PM rue_mohr: I have an hour and a half
01:43 PM Tom_L: damn you better hurry up
02:00 PM aandrew: he's got 10m now
03:04 PM rue_mohr: got it
03:05 PM rue_mohr: came back with a 1HP treadmill mootr
03:05 PM rue_mohr: PM
03:28 PM rue_mohr: ok I have a head gasket to change
04:01 PM aandrew: head gasket on a PM treadmill motor? :-)
04:06 PM Tom_L: briggs
04:31 PM rue_mohr: briggs PM motor
05:54 PM rue_shop1: Tom_L, you were saying you know someone at one of the sub-assembly plants for briggs?
06:01 PM rue_shop1: <valves are 6 thou>
06:03 PM rue_shop1: <intake is the larger aluminum, exhaust is the smaller steel>
06:14 PM Tom_L: rue_shop1, he made assembly lines for them
06:14 PM Tom_L: parts of them anyway
06:14 PM Tom_L: consequently he has a number of briggs engines stashed away
06:15 PM Tom_L: check the magneto
06:16 PM Tom_L: or whatever it is
06:16 PM rue_mohr: yea
06:16 PM rue_mohr: there is a heap of oil in here
06:16 PM Tom_L: i've had to replace those
06:16 PM Tom_L: doesn't sound good
06:16 PM Tom_L: in the cyl?
06:16 PM rue_mohr: It should probably be ~1k
06:16 PM rue_mohr: yea, its all wet with carbon oil
06:17 PM Tom_L: doesn't look like a broken ring?
06:17 PM Tom_L: was it smoking?
06:17 PM rue_mohr: smoking like hell
06:17 PM Tom_L: all the time?
06:17 PM rue_mohr: which it might if one cyl wasn't firing
06:17 PM rue_mohr: no
06:17 PM rue_mohr: but then it ran lumpy
06:17 PM Tom_L: if it smokes and quits, intake valve guides
06:18 PM Tom_L: if it smokes and doesn't quit, broken ring
06:18 PM rue_mohr: @24 hrs?
06:19 PM rue_mohr: maybe I should go find B&S corp office and throw this engine thru the front window
06:19 PM rue_mohr: maybe they would reply to that
06:23 PM Tom_L: :/
06:23 PM Tom_L: do you have a compression gage?
06:38 PM rue_shop1: good coil is 8k bad sides coil is 6.7k
06:42 PM Tom_L: spark?
06:42 PM Tom_L: or no spark
06:42 PM Tom_L: do the tongue test...
06:50 PM Tom_L: i'm guessing you had a faulty part from the start
06:56 PM rue_mohr: I'm still re-assembling
06:57 PM rue_mohr: they use goo instead of one of the gaskets, so I got to make one of those...
06:58 PM Tom_L: you don't have any goo?
06:58 PM Tom_L: blue rtv i assume
07:02 PM rue_mohr: https://youtu.be/GpBymP0lkzM
07:02 PM rue_mohr: no I used some soft gasket stuff
07:02 PM rue_mohr: hey its eve readable
07:03 PM rue_mohr: dispite the camera and its focus
07:03 PM rue_mohr: my printers sound really rattlie tho
07:05 PM Tom_L: auto store had that thin cardboardish gasket material
07:06 PM Tom_L: they used to anyway, i've made many gaskets from that stuff
07:06 PM rue_mohr: in a pinch I use cerial box cardboard oiled up
07:09 PM Tom_L: that can't be you, the desk looks too clean
07:36 PM rue_shop1: heh
07:41 PM Tom_L: how hard is it going to be for you to get another magneto?
07:47 PM rue_shop1: amazon I suspect
07:47 PM rue_shop1: I'll have to get the manual again and find the part number
07:48 PM Tom_L: not able to get it under warranty?
07:50 PM Tom_L: i should set A12 up to cut the same way i did A3 but it would require 2 sets of softjaws
07:51 PM Tom_L: i was looking how i did it because i'd forgotten
08:03 PM rue_mohr: I bought it from sears
08:03 PM rue_mohr: so it took me too long to find out who to go to
08:03 PM Tom_L: mmm
08:03 PM rue_mohr: B&S did not answer my questions
08:04 PM Tom_L: some places you think will never close have closed of late
08:04 PM Tom_L: he said they've been scaling back at the plant he services too so i dunno
08:21 PM rue_mohr: manufacturing is crumbling
08:21 PM rue_mohr: because we have spread it out over the planet like we did
08:21 PM Tom_L: i had an idea for A12 just now
08:22 PM Tom_L: you saw how i did the new setup for A3
08:22 PM rue_mohr: no
08:22 PM Tom_L: you did
08:22 PM Tom_L: the vise jaws and the square blank?
08:24 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/Can_Holder/A3/New/A3_1.jpg
08:25 PM Tom_L: do A12 like that only cut 2/3 thickness the first pass, use a T slot cutter for the slot, drill the hole and flip it to remove the bottom material
08:26 PM Tom_L: see, i'm too tired to do anything tonight so all these ideas come to my head :)
08:27 PM rue_mohr: oh I'm getting numbesr mixed up sorry
08:28 PM rue_mohr: thought you meant 12
08:28 PM Tom_L: i did
08:28 PM Tom_L: the little teardrop part
08:28 PM rue_mohr: I cant do tool changes tho
08:28 PM rue_mohr: no registration means
08:28 PM Tom_L: the one i did the fixture for you
08:28 PM rue_mohr: I'm gonng kill this keyboard
08:28 PM rue_mohr: yea
08:28 PM Tom_L: i know you can't
08:28 PM rue_mohr: I have two machine each with a bit
08:29 PM rue_mohr: one cutsout, the other slots, no tool changes
08:29 PM Tom_L: i'm just thinking of different ways to do things
08:29 PM rue_mohr: ;)
08:29 PM Tom_L: the T slot cutter would be slower than the endmill anyway
08:29 PM rue_mohr: the old guy used a jig
08:29 PM rue_mohr: ran them thru a tablesaw to slot them
08:29 PM Tom_L: hah
08:29 PM rue_mohr: yep
08:29 PM Tom_L: quick i bet
08:30 PM Tom_L: as long as the jig held
08:30 PM rue_mohr: from what we can figure, he was using a pentagraph router to cut out the handles
08:30 PM rue_mohr: I have a tablesaw jig for a slot in the end of the pies
08:30 PM rue_mohr: pipes
08:30 PM rue_mohr: you dont really even hear it cut
08:30 PM Tom_L: i remember you telling me that
08:31 PM rue_mohr: its been great, but one of the shims that keeps the blade the right amount of crookid compressed and the slot is a hair too narrow now
08:31 PM Tom_L: what did you make the shim out of?
08:31 PM rue_mohr: on the tablesaw I put shims to make the blade not run true
08:31 PM Tom_L: i know what you mean
08:31 PM rue_mohr: its the only way I could make the slot the right width
08:32 PM Tom_L: dato's do that
08:32 PM rue_mohr: I used metal as I recall
08:32 PM rue_mohr: so I'm not sure quite what happened
08:32 PM rue_mohr: things settle
08:32 PM Tom_L: brass might compress, steel probably wouldn't
08:33 PM Tom_L: find some shim stock and shove a thin piece under your shim
08:33 PM rue_mohr: I have a feeling something just settled
08:34 PM Tom_L: maybe the blade dulled a bit
08:34 PM rue_mohr: its easy to hand trim the slot, but we shouldn't have to
08:45 PM Tom_L: did that one place ever come thru with an order?
08:47 PM rue_mohr: for sprayers?
08:47 PM rue_mohr: we get a tiny trickle of them
08:47 PM Tom_L: yeah
08:47 PM Tom_L: you said they were all excited
08:47 PM rue_mohr: I think we did another 4 after the last ones I mentioned
08:47 PM rue_mohr: oh the demo to the store
08:47 PM rue_mohr: no
08:52 PM Tom_L: did you set this channel up on that other network?
08:53 PM Tom_L: maybe polprog did....
08:53 PM rue_mohr: networks
08:53 PM rue_mohr: I'v got feet in 3 boats at the moment
08:53 PM rue_mohr: its a bit taxing
08:54 PM Tom_L: any activity on the others?
08:55 PM rue_mohr: I have a chap in robotics on dalnet that is quite green with microcontrollers, he's working on a joystick and needs help with understanding how to use a 4051 multiplexor
08:55 PM rue_mohr: which... there is an arduino library for....
08:55 PM rue_mohr: !!!!?
08:55 PM Tom_L: the other guys wanted me to log libera is why i was asking
08:56 PM Tom_L: i'm not too keen on the idea but i consented
08:56 PM rue_mohr: I really dont know where this is going to go
08:56 PM Tom_L: i'm holding out to the bitter end :)
08:56 PM rue_mohr: I'v made a point of staying on 1 network for 20+ years
08:56 PM Tom_L: ^^
08:56 PM rue_mohr: there might not be a bitter end
08:57 PM rue_mohr: the admins here are doing crazy things, thats for sure
08:57 PM Tom_L: i think if anything was gonna go down it would have went by now
08:57 PM rue_mohr: things are happening
08:57 PM rue_mohr: were just in such a small corner we dont see it
08:58 PM Tom_L: i didn't know if you wanted me to log garf in libera or not
08:58 PM Tom_L: i'd rather not go down that rabbit hole yet
08:58 PM rue_mohr: "
08:58 PM rue_mohr: Hi Rue,
08:58 PM rue_mohr: Pausing this ticket a bit as I think it needs conflict resolution. I'm familiar with the history and I know that you and Emil both want the channel.
08:58 PM rue_mohr: Kind regards,
08:58 PM rue_mohr: kline"
08:58 PM rue_mohr: re #avr on libera
08:59 PM Tom_L: oh you asked for ownership?
09:00 PM rue_mohr: I did a official registration request
09:00 PM rue_mohr: that one we never did on here
09:00 PM Tom_L: i see
09:00 PM rue_mohr: I dont completely care
09:00 PM rue_mohr: I'm doing it because its not about ego with me
09:00 PM Tom_L: i'm not gonna persue any of that at this point
09:01 PM rue_mohr: or revenge or whatever
09:01 PM Tom_L: who started avrs after they got pissed off?
09:01 PM rue_mohr: emil
09:01 PM Tom_L: ahh figures
09:01 PM rue_mohr: it was just emil who got pissed off
09:02 PM Tom_L: all because you flushed the channel
09:02 PM rue_mohr: cause, after giving multiple warnings over like 3 days, I kicked him
09:02 PM rue_mohr: as he'd not said anything
09:02 PM Tom_L: hmm
09:02 PM rue_mohr: yea, he started kicking and screaming about injustice
09:03 PM rue_mohr: it wasn't even a ban, just a kick
09:03 PM rue_mohr: most of the bots came back immediatly
09:03 PM Tom_L: well i registered on libera but i'm not actively on it
09:03 PM rue_mohr: so, in the end, it did't do much
09:04 PM rue_mohr: sounds good
09:04 PM rue_mohr: you can find me if freenode explodes
09:04 PM rue_mohr: 8-|
09:04 PM Tom_L: i told those other guys i wasn't gonna be there to babysit the bot
09:04 PM Tom_L: nothing else just txt
09:05 PM rue_mohr: I'm curious
09:05 PM rue_mohr: I think kline is on emils side
09:05 PM Tom_L: your wk is 8185?
09:05 PM rue_mohr: yep
09:06 PM Tom_L: the other is a land line?
09:06 PM rue_mohr: yup
09:06 PM Tom_L: i never answer my land line anyway
09:06 PM Tom_L: i keep it because i've had it 40 yrs probably
09:07 PM Tom_L: her sis is flying in monday pm for 3-4 days
09:07 PM Tom_L: that should be fun :/
09:09 PM rue_mohr: is travel over there normalizing a bit
09:09 PM rue_mohr: ?
09:10 PM Tom_L: i guess
09:10 PM Tom_L: they've mostly lifted the mask rules here
09:10 PM Tom_L: probably 1/4 to 1/3rd still wear em
09:11 PM Tom_L: they've started mass gatherings again
09:11 PM Tom_L: i'll know more about air travel when she gets here
09:11 PM Tom_L: i don't plan on it for a while personally
09:13 PM Tom_L: but then i really don't have anywhere to go right now
09:13 PM rue_mohr: its in my head to take a vaccation and drive in & visit
09:13 PM rue_mohr: covid is a problem
09:13 PM rue_mohr: so is knowing if my truck would live
09:13 PM Tom_L: driving is pretty normal now
09:14 PM Tom_L: i'd be concerned about the truck too :)
09:14 PM rue_mohr: so is knowing if I'v get lynched in some random town along the way
09:14 PM rue_mohr: well the timing gears are new!
09:14 PM Tom_L: heh
09:14 PM Tom_L: run good?
09:14 PM rue_mohr: yes
09:14 PM Tom_L: i bet mine would still be running had he not wrecked it
09:14 PM rue_mohr: its much nicer to drive thant he ford transit I drive for work
09:15 PM Tom_L: i had to weld up the cab supports once on it
09:15 PM rue_mohr: ooowhere!
09:15 PM rue_mohr: like the things off the frame or the area on the cab
09:15 PM Tom_L: the back ones i think, it's been too long ago
09:15 PM Tom_L: where the cab donuts bolt to the frame
09:15 PM rue_mohr: well I'll put it on my check list
09:16 PM rue_mohr: ok
09:16 PM Tom_L: i just stuffed some plates in and stuck em in place
09:16 PM Tom_L: ford was bad about that
09:17 PM rue_mohr: the transmission is a joke
09:17 PM Tom_L: manual?
09:17 PM rue_mohr: it downshifts till its cogging the engine
09:17 PM rue_mohr: auto
09:17 PM Tom_L: oh
09:18 PM Tom_L: i never had problems with that
09:18 PM Tom_L: mine was a 6 though
09:18 PM Tom_L: is yours a 4 cyl?
09:18 PM rue_mohr: it auto drops the throttle after 5 seconds of holding it in the same place
09:18 PM rue_mohr: it shifts from 3rd to 1st on hills, redlines the engine
09:18 PM rue_mohr: 4 yup
09:18 PM Tom_L: yeah, i never had that issue
09:19 PM rue_mohr: there is no torque curve, its just random dashes
09:19 PM rue_mohr: you cant press the peddal a bit more to go a bit faster
09:19 PM rue_mohr: it changes gears and goes too fast
09:19 PM Tom_L: that must be like a 25-30hr drive
09:19 PM rue_mohr: when you drop it back, it goes back into 3rd and loses speed again
09:19 PM rue_mohr: for the most part it doesn't use 2nd, its in first or 3rd
09:20 PM Tom_L: heh
09:20 PM Tom_L: i wonder if a solonoid or something is bad
09:20 PM rue_mohr: I'v started just leaving it in second
09:20 PM rue_mohr: no, its done this since is was brand new
09:20 PM Tom_L: ahh
09:20 PM Tom_L: just underpowered for the tranny
09:20 PM rue_mohr: the design on the transmission was just left out
09:21 PM rue_mohr: its a 2L?
09:21 PM Tom_L: i'm sure they borrowed it from some other vehicle
09:21 PM rue_mohr: my truck, at 2.5 kicks ass
09:21 PM Tom_L: iirc mine was 3.5
09:22 PM rue_mohr: everything is just horrid
09:22 PM rue_mohr: the side doors just friction latch open
09:22 PM rue_mohr: so, if your on a steep hill, you cant keep the side door open
09:22 PM Tom_L: work truck or yours?
09:22 PM rue_mohr: the seatbelt is 100% dingleweight controlled
09:22 PM rue_mohr: this is all the work truck
09:23 PM Tom_L: ahh
09:23 PM rue_mohr: the seatbelt is 100% dingleweight controlled, if your on a slope, it WILL NOT give you the seatbelt
09:23 PM Tom_L: hah
09:23 PM Tom_L: i hate it when mine sticks
09:23 PM rue_mohr: but its will ding at you the whole time you take driving to a flat spot so you can put it on
09:23 PM rue_mohr: its not stuck
09:23 PM rue_mohr: its a hanging weight that controls it
09:24 PM Tom_L: well i know but it won't let go
09:24 PM Tom_L: i've seen em
09:24 PM rue_mohr: and if your on a slope, the answer is no
09:24 PM rue_mohr: the winshield wiper timer
09:24 PM rue_mohr: you wouldn't think that could be done wrong eh?
09:24 PM Tom_L: yeah i'm not wild about that on the kids hondas
09:24 PM rue_mohr: but they managed to find a set of discrete settings that is both too slow and too fast
09:25 PM Tom_L: exactly
09:25 PM rue_mohr: the sun vistor
09:25 PM rue_mohr: the windshild on the ford transit is HUGE
09:25 PM Tom_L: that's way too short on the one i drive
09:25 PM Tom_L: i get all the hand me downs
09:25 PM rue_mohr: its like it was made for someone who was 8' tall, from the weighst up
09:26 PM rue_mohr: so, the sun vistor might as well be 1sq inch
09:26 PM rue_mohr: cause it only covers like 10% of the width of the windshield anyhow
09:26 PM Tom_L: velcro some cardboard to it
09:26 PM rue_mohr: I'v got heavy tape over a lot of the windshields top
09:27 PM rue_mohr: they have a huge gap at the pillar too
09:27 PM rue_mohr: not to mention the design of the hinge is faulty and while your flipping it from the side window to the front it tends to fall off
09:27 PM rue_mohr: it tells you a door isn't closed
09:28 PM rue_mohr: it wont tell you which one
09:28 PM rue_mohr: just a door
09:28 PM Tom_L: very helpful
09:28 PM rue_mohr: the back door is regarded by it as a trunk, when you unlock the doors, the back is still locked
09:28 PM rue_mohr: I really dislike the thing
09:28 PM rue_mohr: glad I didn't pay for it
09:28 PM Tom_L: i couldn't tell
09:29 PM rue_mohr: not even the cruze control can deal with the transmititon
09:29 PM rue_mohr: its +- 15km/hr
09:29 PM Tom_L: that and you carry alot of weight around
09:29 PM rue_mohr: for that vehicles design, yes
09:30 PM rue_mohr: the commercial tires for it are $$$$
09:30 PM rue_mohr: boss told me not to use them
09:30 PM rue_mohr: or the brakes
09:30 PM rue_mohr: :)
09:30 PM aandrew: sigh
09:30 PM aandrew: one of those days
09:30 PM aandrew: palinca is going down juuuuuust right
09:31 PM rue_mohr: "were paid by the hour, just drive like a little old lady"
09:31 PM rue_mohr: which, ok, but ..
09:31 PM rue_mohr: hes much more of a leader than a boss
09:33 PM rue_mohr: I'm gonna go work on my discrete bushing more!
09:33 PM Tom_L: oh for the mill
09:39 PM rue_shop1: yep
09:40 PM rue_shop1: tho I thknk I should find someone with some large scrap beraings
09:40 PM rue_shop1: I was at te scrapper today too darnit
09:40 PM Tom_L: i still don't quite get the design idea
09:40 PM Tom_L: linear bushing?
09:40 PM rue_shop1: there was a lot going on, I almost forgot to ask about the aluminum slag
09:40 PM rue_shop1: no, rotary bearing for not doing this bushing thing
09:41 PM rue_shop1: if I had oversized bearings I could just make adapters and pillows for them
09:41 PM rue_shop1: but I'd want them all matching
09:41 PM Tom_L: i got at least one in a drawer out there
09:41 PM Tom_L: i should see what size it is
09:43 PM rue_shop1: its ok
09:44 PM rue_shop1: would yo usay that nylon is just glorified wax?
09:44 PM Tom_L: i know but i should find a use for it somewhere
09:44 PM Tom_L: delrin would be better
09:44 PM Tom_L: higher temp
09:44 PM Tom_L: i got a stick of teflon out there too
09:45 PM Tom_L: forget what diameter it is but small
09:45 PM Tom_L: like 9/16 maybe
09:46 PM Tom_L: i got a little nylon but i think it's old
09:51 PM rue_shop1: thats encouraging, the bandsaw could hardly cut thru it
09:51 PM rue_shop1: galled right up
09:51 PM rue_shop1: its really low speed
09:51 PM rue_shop1: the stuff I have is 1" tick
09:54 PM rue_shop1: yup, I should have cad' this out
10:19 PM aandrew: rue_shop1: do you have the link to that wide MIPI display handy?
10:23 PM rue_mohr: 1 sec
10:23 PM rue_mohr: its technically a *narrow* mipi
10:23 PM rue_mohr: technically its 480x1920
10:25 PM Tom_L: haha
10:26 PM rue_mohr: :)
10:26 PM Tom_L: looking for something else: http://tom-itx.no-ip.biz:81/~webpage/rue/S10_pics/DSC_0001.JPG
10:26 PM Tom_L: found that
10:26 PM rue_mohr: I as wondering if its what they make if a full size fails
10:26 PM rue_mohr: wasthat yours?>
10:26 PM Tom_L: yes
10:27 PM rue_mohr: mine is normal cab
10:27 PM Tom_L: i think you told me that
10:27 PM Tom_L: that's the good side
10:27 PM rue_mohr: heh
10:27 PM Tom_L: i forgot the paint was coming off in a couple spots
10:27 PM Tom_L: on the top
10:28 PM rue_mohr: where is that screen
10:28 PM rue_mohr: aha
10:28 PM rue_mohr: aandrew,
10:28 PM rue_mohr: https://www.aliexpress.com/item/4000331124753.html
10:28 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/S10_pics/DSC_0002.JPG
10:28 PM rue_mohr: important note
10:28 PM rue_mohr: its a V0 that I have
10:28 PM rue_mohr: I found a v1 datasheet, and the hisory says they changed the pixel format
10:28 PM rue_mohr: (!!!)
10:29 PM rue_mohr: I dont know if that means they changed what they said it was, or the protocol
10:30 PM rue_mohr: seems to me that there are only a few lcd communication standards, so, it must adhere to something
10:30 PM aandrew: rue_mohr: danke
10:31 PM rue_mohr: the screen and control baord are usually over $100
10:32 PM rue_mohr: ooo
10:32 PM rue_mohr: this listing has an lvds to mipi adater
10:32 PM rue_mohr: https://www.aliexpress.com/item/4000464796989.html
10:36 PM rue_mohr: I'm confused
10:37 PM rue_mohr: china seems to be mixing lvds and mipi
10:39 PM rue_mohr: https://www.aliexpress.com/item/1005001439866574.html
10:39 PM rue_mohr: as far as the controllers go, thats really cheap
10:39 PM rue_mohr: but I'm confused
10:39 PM rue_mohr: mipi vs lvds
10:40 PM rue_mohr: MIPI is the format of the how the various bits are located relative to other bits and signalling and start and stop sequences inside the data stream. ... So Mipi is a stream of formatted bits, and LVDS is the signals that push those bits in the real world.
10:40 PM rue_mohr: ^^ yea
10:40 PM rue_mohr: I agree with google
10:40 PM rue_mohr: is that mipi screen just lvds?
10:42 PM rue_mohr: The Flat Panel Display Link interface (FPD-Link) vs mipi
10:45 PM aandrew: LVDS is just a parallel interface in a different physical format
10:46 PM aandrew: instead of 3.3V it's LVDS
10:46 PM aandrew: MIPI is an actual protocol with a screwy PHY on top of it
10:46 PM rue_mohr: yea
10:47 PM rue_mohr: mipi vs FPD
10:47 PM rue_mohr: both using lvds signalling
10:47 PM rue_mohr: pin number!
10:47 PM rue_mohr: :)
10:53 PM Tom_L: sooo confusing
10:53 PM aandrew: no
10:53 PM aandrew: MIPI isn't (just) LVDS
10:54 PM aandrew: it has a low speed protocol which is not LVDS and then a high speed protocol which is pretty much a high speed serialized data over LVDS
10:54 PM aandrew: on the same pins
10:59 PM rue_mohr: "lvds" is a misnomber, its FPD
10:59 PM rue_mohr: both use low voltage differential signalling
11:00 PM aandrew: is it?
11:00 PM rue_mohr: do the pins match up? probably not
11:00 PM aandrew: I don't know much about FPD
11:00 PM rue_mohr: from what I can tell
11:00 PM rue_mohr: FPD is "lvds"
11:00 PM rue_mohr: its the different protocol
11:00 PM aandrew: well FPD's physical layer is LVDS yes, but are all LVDS connected displays FPD?
11:00 PM aandrew: I should look at my LVDS-HDMI boards
11:00 PM aandrew: some ITE chip
11:01 PM rue_mohr: seems that there is fpd and mipi, as protocols
11:01 PM rue_mohr: low voltage differntial signalling
11:01 PM rue_mohr: on both
11:01 PM rue_mohr: and get this
11:01 PM rue_mohr: the ttl board I have, uses one side of the lvds for the ttl
11:02 PM rue_mohr: from what I can tell, I have high odds of finding a computer lcd that uses ttl
11:03 PM aandrew: hm
11:03 PM aandrew: the boards I have use an ITE6263, it doesn't seem to mention FPD
11:07 PM rue_shop1: do they just say lvdt?
11:07 PM rue_shop1: they just mention something as a format
11:09 PM rue_shop1: I get the impression from reading that "lvds" was a computer monitor thing and that mipi was a cell phone thing
11:09 PM rue_shop1: so I'd explex the pi to support mipi
11:10 PM rue_shop1: as iirc its a cell phone chip?
11:12 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/SBC/PDF/Samsung-LTN104S2-2.pdf
11:12 PM Tom_L: there's that one i had that was cracked
11:12 PM Tom_L: i think
11:12 PM aandrew: that's how it was created I think yes
11:14 PM rue_shop1: !!!!!!!!!!!!
11:14 PM rue_shop1: tom!!!!
11:14 PM rue_shop1: omg
11:14 PM rue_shop1: the ds90CF363 is a converter
11:15 PM rue_shop1: and I'v bet, with what they say in there, that one of the laptops has one
11:15 PM rue_shop1: instead of the vga DAC
11:16 PM rue_shop1: but this doenn't add up
11:16 PM rue_shop1: maybe it doesn't have to
11:17 PM rue_shop1: now I'm more confused than ever
11:17 PM rue_shop1: they just call it a transmitter
11:17 PM rue_shop1: aka, "its super common, you see it everywhere"
11:18 PM rue_shop1: so there should be one in a laptop betwen the gpu and the screen maybe
11:19 PM Tom_L: there's a adc pdf in that pile
11:19 PM rue_shop1: aandrew, hound me about the differential transofrmer thing too
11:19 PM rue_shop1: but what I want is the ttl thats seen in that screen datasheet
11:19 PM rue_shop1: ds90CF363
11:20 PM Tom_L: the samsung one?
11:20 PM rue_shop1: yea
11:20 PM rue_shop1: thats a huge key to everything
11:20 PM Tom_L: look thru those pdf files
11:20 PM rue_shop1: I may be able to find a "lvds" to mipi adapter
11:20 PM rue_shop1: too much on the go
11:20 PM rue_shop1: I'm trying to work on these other things
11:21 PM rue_shop1: and I'm not getting anywhere
11:21 PM rue_shop1: like this welder
11:21 PM rue_shop1: and this bushing
11:21 PM rue_shop1: and the motor controlers I need for the cnc
11:21 PM rue_shop1: hey I had a thought tom
11:21 PM rue_shop1: the cnc I'm making is DC servo
11:22 PM rue_shop1: so, as long as the reduction drive doesn't slip, it doesn't have to be positive traction
11:22 PM rue_shop1: know what I mean?
11:22 PM rue_shop1: full closed loop
11:22 PM rue_shop1: I could use a belt drive
11:22 PM Tom_L: DS90CF364
11:22 PM rue_shop1: and not havve to worry about backlash
11:22 PM rue_shop1: oh
11:23 PM rue_shop1: Tom_L, the ttl is what I want
11:23 PM rue_shop1: partly cause I dont need to generate analog, and partly cause its synchronous
11:25 PM rue_shop1: I'm project trashing
11:25 PM rue_shop1: need some ballast
11:28 PM Tom_L: they generally use belt reduction on servos
11:29 PM Tom_L: at least all the ones i've seen
11:31 PM rue_shop1: I dont have to worry about it being a toothed belt tho
11:31 PM rue_shop1: its closed loop
11:31 PM rue_shop1: if the belts position isn't reapeatable is means nothing
11:31 PM Tom_L: you still don't want it to slip under load
11:31 PM Tom_L: i faced that with the sherline stock belts
11:31 PM Tom_L: i'd burn one up in a day
11:32 PM rue_shop1: not a lot
11:32 PM rue_shop1: but a bit of walking is ok
11:32 PM rue_shop1: the closed loop wont even know the difference
11:33 PM Tom_L: the belt i ended up with doesn't even hint of slipping
11:33 PM rue_shop1: if I use geared motors, with backlash, it gives me lots of issues
11:33 PM Tom_L: yeah
11:33 PM rue_shop1: I'm talking for XYZ
11:33 PM rue_shop1: not the spindle
11:33 PM Tom_L: i know what you're doing
11:33 PM rue_shop1: k
11:33 PM rue_shop1: it radically simplifies the drives
11:34 PM Tom_L: they generally use timing belts for servos on them though
11:34 PM rue_shop1: yea, I dont need to
11:34 PM Tom_L: if the feedback is on the reduction you may not have as much of a problem
11:34 PM rue_shop1: the sensors aren't on the motor, their on the axies
11:34 PM aandrew: hm? differential transformer?
11:34 PM rue_shop1: the linear variable differetial transformer
11:34 PM rue_shop1: you were asking me to doc it up
11:35 PM Tom_L: but the res will be lower
11:35 PM aandrew: ahh yes
11:35 PM aandrew: please yes
11:35 PM rue_shop1: keep that on top for me
11:35 PM aandrew: I am very happy to host high res stuff for you
11:35 PM rue_shop1: the suface is boiling right now
11:35 PM aandrew: i'll give you al ogin and you just run it your own if youprefer
11:35 PM rue_shop1: heh, I'd like ideas for a format for it
11:36 PM aandrew: I thinnnki I'm anout 10 shots in
11:36 PM Tom_L: i'd say at least
11:36 PM rue_shop1: its more of an infomational and not a howto
11:36 PM aandrew: sure but high res big pics are awesome
11:40 PM Tom_L: well, i'm out
11:58 PM rue_shop1: aandrew, can you find a document of a similar nature you think is good?
11:58 PM rue_shop1: I did not-quite ripoffs all the time in school, I'm really good at it