#garfield Logs

Jun 08 2015

00:20 rue_house z, you starting a buxiness?
00:27 rue_house zhanx, you do opencv?
00:27 zhanx Rue, yes and did before
00:28 zhanx What's your questions on opencv
00:28 rue_house think you would know how to get opencv to look at a gear, and count the teeth?
00:28 tsmeow-afk drinks some oj&vodka, nibbles at some baked beans, and pon
00:29 zhanx Well I could get it to multiple track fingers
00:30 zhanx You would need to write a recognition peice for the gears and then a script to count them
00:30 zhanx Don't have a Webcam right now to test it
00:32 rue_house it would also be nice to get an arbitrary pitch number, help match them
00:32 zhanx That is just geometry
00:32 rue_house zhanx, shall I buy and mail you a capture card and camera?
00:32 rue_house oh wait, the two are less than $20, but it would cost $40+ to mail them to you
00:33 zhanx Lol no, I am working on other things bur, if I get time I will work on the base for it
00:33 zhanx Will need a reference object in the frame
00:33 zhanx 1cm cube etc
00:34 rue_house dosn't have to be to scale
00:34 rue_house arbitrary is ok, I just have to use the same jig for all the gears
00:35 zhanx Needs scale to measure pitch etc
00:35 rue_house yea, unless your abitrary units
00:35 zhanx True
00:36 rue_house measured in A.U. (not angstroms, Arbitrary Units)
00:37 rue_house hmm, I suppose one could do it with a scanner ....
00:37 rue_house that would take a while
00:37 rue_house damnit,
00:37 rue_house bedtime was a half hour ago
00:37 rue_house :(
00:37 rue_house I dont want to sleep and work for 5 days, I want to play
00:38 rue_house wait, what am I doing tommorow at work, maybe I CAN be asleep while doing it
00:41 rue_shop3 drat, I was hoping this second gearbox would be finished before bed so I could start printing a pipe cap I need for tommorow evening
00:42 katsmeow-afk you etcing gears?
00:42 katsmeow-afk etcing
00:42 katsmeow-afk e t c h i n g
00:42 rue_shop3 3d printing the cases
00:42 katsmeow-afk oh
00:42 rue_shop3 cause then I dont have to fuss with measurements
00:43 tsmeow-afk
00:43 rue_shop3 the 3d is a great tool for "hey, make this for me while I do things"
00:43 rue_shop3 3d printer...
00:45 katsmeow-afk yeas, i have gears for the mill, but making them fit the axles, and a box to put them in will be difficult
00:48 rue_house http://ruemohr.org/~ircjunk/tutorials/mech/gearbox/gearbox.html
00:48 rue_house :)
00:49 rue_house The 3d printed stuff is awefull light, this gearbox hardly weighs more than the motor
00:49 rue_house (with motor included)
00:52 katsmeow-afk ok, but this is a 1/2hp? motor turning a 35mm shaft
00:52 katsmeow-afk the gears i have are from a riding mower transmission
00:53 rue_house definitly use thicker plate :)
00:53 tsmeow-afk ag
00:53 rue_house the other one is to gather steel bushings, set them in 3d space where they need to go, and fill the inbetween bits in with metal rods
00:54 rue_house such they stay were they are supposed to be
00:54 katsmeow-afk yeas, mesh the gears with a thin paper tween them, clamp tight, that will gimme the shaft placement
00:55 e_house notes this paper t
00:55 rue_house geez, I havn't posted anything on the site in forever
00:55 katsmeow-afk *thin* , as in lube oil thickness when running
00:57 katsmeow-afk if the teeth mesh right, and aren't damaged, gives you parallel lines on the shafts too
00:57 rue_house http://ruemohr.org/~ircjunk/images/p1070272.jpg
00:57 rue_house ?
00:57 rue_house oh, put the shaft against the teeths
01:00 rue_house <rue_house> http://ruemohr.org/~ircjunk/images/p1070276.jpg I do 2d outlines
01:00 rue_house <rue_house> http://ruemohr.org/~ircjunk/images/p1070275.jpg and just extrude them in openscad, its WAY faster than CSG
01:01 katsmeow-afk i am drunk, have two puters burning up the internets, using 2 keybd and 2 mice, and earplugs in for a movie
01:01 katsmeow-afk wth is wrong with me?
01:02 rue_house sounds like a common state for people to be in
01:02 rue_house are you worried about it?
01:02 katsmeow-afk no, i accept it, but shouldn't i be asleep, or passd out? it's 00:40am
01:03 rue_house I hope not, I isn't usually
01:03 rue_house tho me language module starts to shut down
01:04 katsmeow-afk it's just nuts i haveto mind what i do outside because of neighbor's gods
01:04 katsmeow-afk and inside i can beat most humans with engineering skills
01:04 rue_house yup
01:05 rue_house http://ruemohr.org/~ircjunk/images/pcb_reuse2.jpg
01:05 rue_house http://ruemohr.org/~ircjunk/images/pcb_reuse1.jpg
01:05 tsmeow-afk sighs and shuts up so you and zhanx can talk, even if it is nix s
01:05 rue_house that was the last board I ever did that to
01:07 rue_house ugkg, the room is 25c
01:07 rue_house this I regard excessivly warm
01:10 katsmeow-afk you didn't answer me about the water in the hil behind the shed
01:11 rue_house I have no data to formulate so much as a speculation
01:11 katsmeow-afk oh
01:12 rue_house hmm my whole cnc upgrade project went in the bin because there is no free CAM software for linux
01:12 katsmeow-afk you understand what my thinking was?
01:12 rue_house iirc you weren't sure if the hill could supply you with enough water
01:13 katsmeow-afk no, you, and use it to provide cold water to coroplex panels in your house, for cooling
01:13 rue_house ah, hence the concerns about the supply volume
01:13 rue_house or you mean when you were working out the thermal transfer
01:14 katsmeow-afk i was concerened about your house temperature, and if you could use that water
01:16 katsmeow-afk 3 4x8 panels seem to be able to move a lot of btu if the temperatures are good
01:16 katsmeow-afk and the flow
01:17 katsmeow-afk just crunch the numbers, see if it works for you
01:17 zhanx Kat blah, I am programming, so stop :p
01:17 katsmeow-afk good deal if you don't even need to insulate the pipe to the house, and you haveto move the water to someplace anyhow
01:17 katsmeow-afk k
01:18 zhanx Working on a complex loop search cycle that is weird
01:19 zhanx Wife wants to control Pandora in the whole house, it sucks
01:20 rue_house katsmeow-afk, my tests with them as solar collectors proved they are great
01:20 rue_house but the manifolds are trickey
01:20 katsmeow-afk tricky?
01:22 rue_house cant glue to corriplast
01:23 rue_house has to be a compression thing
01:23 katsmeow-afk i can, but i am having manifold issues anyhow
01:23 rue_house what with, its hpde, unglueable
01:24 katsmeow-afk the split , the slot, takes all the strength outa the manifold, i t cannot take pressure
01:24 katsmeow-afk *any* give is unacceptable, because it peels off the coroplast
01:28 rue_bed thats why I used mechanical compression
01:28 rue_bed which worked
01:28 katsmeow-afk pics?
01:29 rue_bed pipe cut in half lengthwise, a backer on the corriplast, a routed slot, and screws thru the pipe every 3 inches or so to clamp it all
01:29 rue_bed hmm
01:29 rue_bed wonder what year I did that
01:29 katsmeow-afk i am thinking of soemthing that makes a C= shape , the = closed down on the coro, with periodic bolt spacing thru
01:30 rue_bed tried it, cant seal the ends
01:30 katsmeow-afk of the bolt or the C= shape?
01:31 rue_bed where the pipe slit meets the corriplast end
01:31 katsmeow-afk i wanna give it a try, what did you use for the C= shape?
01:31 rue_bed slip pipe
01:31 rue_bed slit
01:32 katsmeow-afk i am thinking even sch40 is too thin tho
01:32 rue_bed 3/4" isn't big enough
01:32 katsmeow-afk heat it and mold in the compression lips?
01:40 katsmeow-afk i have a way to not use a manifold, i was hoping to use one for small pieces
01:41 rue_bed searching images over hte network is SLOW
01:41 katsmeow-afk you uploaded it and didn't save a copy?
01:42 rue_bed I do not think there is a image of it uploaded
01:42 rue_bed I'm on the bed computer
01:42 rue_bed its over network to the one that has the images
01:42 rue_bed I'm going thru 2008
01:42 katsmeow-afk o
01:44 rue_bed aha
01:44 rue_bed !
01:44 rue_bed dscn0855
01:44 rue_bed dscn0856
01:46 rue_bed oo I got 7 years out of that mower, I got it off a roadside disposal
01:47 rue_bed dscn0899
01:47 rue_bed dscn0900
01:47 rue_bed dscn0901
01:48 katsmeow-afk urls, rue
01:48 rue_bed I'll post all the images tommorow morning, I'm just working on finding them
01:48 katsmeow-afk k
01:49 katsmeow-afk thanks
01:52 rue_bed wow that tree grew fast...
01:53 rue_bed oh my, this means .. thats... the potatoes I'm growing have been reseeded since 2008...
01:54 katsmeow-afk pretty good
02:06 tsmeow-afk pawses the movie to make another drink, because it's 1:45 am and she is still awake and
02:07 katsmeow-afk 2nd day in a row i got more done than i expected to
02:08 rue_bed I cant find images of hte assembled compression
02:08 katsmeow-afk :-(
02:09 katsmeow-afk describe it? pencil and paper sketch?
02:09 rue_bed when I dismantled it, I cut the manifold end off and kept it in tact
02:10 katsmeow-afk why did you dismantle it?
02:10 rue_bed couldn't implment it
02:10 rue_bed and the headers were too small
02:11 katsmeow-afk i was thinking of using 3", shrinking it to 2" with flanges
02:11 katsmeow-afk is 2" still too small ?
02:12 rue_bed I dont think so
02:12 rue_bed with 3/4 it was having stalling issues
02:13 katsmeow-afk uneven pressure across the length of th a weu 3RG
02:13 katsmeow-afk damnit, sound toogood, that was as loud andd clear as a real body grinder cutting
02:13 rue_bed I ported it opposite corners to equalize the paths too
02:14 katsmeow-afk uneven pressure across the length of the manifold then?
02:14 rue_bed not enough flow thru the panel
02:14 katsmeow-afk 100psi on 3/4 pipe is a LOT of flow tho
02:14 rue_bed the other idea was to make it double back the reduce the parallel runs
02:15 rue_bed for 20c rise it was about 1 gal/min
02:15 rue_bed in moderate sun
02:15 katsmeow-afk i was also concerned that high velocity flow into the end of the manifolds would *suck* water from the coro into the manifold
02:16 katsmeow-afk 1 gal/min = $25 chinese pump
02:16 rue_bed slow garden hose test
02:16 katsmeow-afk 20C on one panel, one pass?
02:16 rue_bed yup
02:16 rue_bed it was damn good
02:16 katsmeow-afk not doubled back?
02:16 rue_bed correct
02:16 katsmeow-afk black, no glass over?
02:16 rue_bed painted flat black
02:16 katsmeow-afk i can get it in black, should he;lp some
02:17 katsmeow-afk ~$12/sheet
02:17 rue_bed those are the numebrs as I recall
02:17 rue_bed gnight
02:17 katsmeow-afk makes it cheaper than any roofing i know of
02:17 katsmeow-afk oh,, umm,, ok, gnites
15:57 any37496663 tv raised the rain chances to 40% , but i think i figured out how their numbers work : "40% chance of rain" is recursive, it means "40% of the land will see 40% rain" , and 0.40 x 0.40 is 0.16, or 16% in reality
15:59 any37496663 so 16% of the land gets 16% rain-time, or again recursively, 25 minutes of rain
16:00 any37496663 it means that with 40% rain every day this week, i won't get any rain
20:43 any37496663 "so there are 'eye-see' parts, but no 'ear-hear' or 'touch-feel' parts?"
20:55 rue_shop3 huh
20:55 rue_shop3 most people just say they are wrong
20:58 rue_shop3 sweet, the identicle gearbox I made worked out