#garfield | Logs for 2016-04-20

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[00:16:11] <rue_house> ok I got the square stock
[00:17:55] <katsmeow> ok
[00:18:24] <rue_house> 1 min...
[00:24:03] <zhanx> Oh kat I has a bandsaw blade coming
[00:24:39] <katsmeow> ok?
[00:24:59] <zhanx> For your idea of cutting wood
[00:25:03] <katsmeow> making plywood wheels to mount it on?
[00:25:18] <zhanx> Bike wheels I think k
[00:25:34] <zhanx> It will be here Saturday
[00:25:40] <katsmeow> you'll need to line bike wheels with something to keep the teeth lifted off
[00:26:15] <katsmeow> you do not want the blade teeth to contact the steel wheels
[00:26:21] <zhanx> After its dropped off I get too engineer something
[00:26:44] <rue_house> http://ruemohr.org/~ircjunk/images/p1070972.jpg
[00:26:49] <rue_house> that was what I got today
[00:27:10] <rue_house> do you think that square tubing will work for the sliders?
[00:27:27] <zhanx> I see a cv joint
[00:27:41] <rue_house> yea, its got two
[00:27:55] <rue_house> and a nice peice of high grademetal in the middle
[00:28:11] <zhanx> And chain
[00:28:22] <katsmeow> i'd use heavier structural steel tube if you are making a metal cutting machne, just lookie at the ways on your lathe for an idea
[00:28:26] <zhanx> That is a slider right there
[00:32:01] <rue_house> the bike was new, it was smashed and thrown away by one of the local stores
[00:32:33] <rue_house> the frame of the bike is borked, but everything attached to it seems fine
[00:32:47] <rue_house> still had the bag of paperwork attached to the handlebar
[00:33:34] <rue_house> and a pressure washer hose
[00:33:59] <rue_house> katsmeow, would you like to browse the unscaled image?
[00:34:19] <katsmeow> nah, but i am happy for you
[00:34:28] <rue_house> I should have put the back down so you could see the ends of all the stock
[00:34:47] <rue_house> thats the 3rd load kinda like that I'v obtained from the pile
[00:34:56] <katsmeow> i can't feel it in the pic anyhow, u[p to you to descide if it's strog enough
[00:35:14] <rue_house> today I took the power saw (bottom left) so I could get some of the stuff that was long
[00:37:09] <rue_house> oh, 10k rpm pump, best selection would be vane you think?
[00:38:15] <katsmeow> umm, i dunno if it's a vane type or not
[00:38:31] <rue_house> I mean if I have a 10k rpm motor and I want to put a pump on it
[00:38:38] <rue_house> it was a thought I had yesterday
[00:38:45] <rue_house> pump type selection
[00:38:53] <katsmeow> ah, yeas
[00:39:13] <katsmeow> centrifugal
[00:39:33] <katsmeow> true rotary sliding vane, prolly not
[00:42:09] <rue_house> oooh
[00:42:14] <rue_house> that I didn't think of
[00:42:33] <rue_house> tesla pump
[00:43:17] <katsmeow> the CD/DVD type?
[00:43:37] <rue_house> at 10k with a smaller wheel
[00:43:52] * katsmeow nods
[00:48:25] <rue_house> ok, so if I want to work out the pressure
[00:48:49] <rue_house> lets say its made of a spinning tube, the inlet in the middle of the cirle
[00:49:06] <rue_house> so the pressure at 0rpm, would be the gravity between the top and bottom
[00:49:34] <rue_house> take water, lets say the tube is 1cm long
[00:50:04] <rue_house> the pressure would be .014 psi
[00:50:31] <rue_house> how do we work out how many x the gravity would be at, say 100rpm
[00:50:59] <katsmeow> you ask Wolfram, i think
[00:52:07] <rue_house> ah!
[00:52:17] <katsmeow> how much air pressure can a tire valve hold?
[00:52:25] <rue_house> hmm
[00:52:44] <rue_house> well, there are two answers
[00:52:54] <rue_house> one is the max pressure that it can still be reopened
[00:53:10] <katsmeow> 1000 psi ?
[00:53:15] <rue_house> the other being its structural failure point, which I'd put at about ...
[00:54:34] <rue_house> I' gonna ballpark 8000psi
[00:54:46] <rue_house> structural failure where the guts tear out
[00:54:55] <katsmeow> i figure 1000psi is only 4lbs on the valve itself, since the opening os only 1/16 or .060 diameter
[00:55:05] <rue_house> oh, maybe the brass tube would fail first
[00:55:25] <rue_house> at 8000psi, there is about 400lbs on the valve
[00:55:37] <rue_house> that should be pretty close to stripping the threads
[00:56:13] <rue_house> tho, I dont think the tube itself would be good for that much
[00:56:54] <rue_house> the little brass tube
[00:57:06] <rue_house> I cant seem to model it
[00:57:24] <katsmeow> ok, i replace the brass tube with a hole bored in someting heavier, and replace the stem going to the cap with staniless or something stronger?
[00:57:39] <rue_house> I'm gonna guess its rating might be about 500psi, but failure... yea 1000
[00:58:21] <katsmeow> looks ke i am back to a leaf valve at the end of a larger bore in 1/2 rod
[00:58:21] <rue_house> well, I suspect at about 300-450 psi, the little rubber seat gets permanently squashed into whatever its sealing against
[00:58:30] <katsmeow> yeas
[00:58:35] <rue_house> need a valve?
[00:58:58] <katsmeow> maybe, but looks ilke i must go to double the pressure i was aiming for
[00:59:39] <rue_house> threaded rod with a hole down the middle, [ ball bearing, spring ]__ in coupling nut, threaded rod with hole in the middle
[01:00:17] <rue_house> are you trying to make it fail?
[01:00:18] <katsmeow> not a leaf valve?
[01:00:42] <katsmeow> no, but decided the tire valve won't do
[01:00:42] <rue_house> well, if your worried about forward pressure drop, sure
[01:01:00] <rue_house> but laeves need a cavity
[01:01:13] <katsmeow> the ball would allow more flow, but the leaf would operate faster
[01:01:35] <rue_house> yup, cant disagree
[01:01:42] <rue_house> but the ball isn't really that slow...
[01:02:04] <rue_house> how many 100's of ns are you wanting closure in?
[01:02:17] <katsmeow> it is if it's enough to flow a 3/16 x 1/2 inch slot
[01:02:43] <rue_house> cylinder?
[01:02:55] <katsmeow> slot in a cylinder
[01:03:53] * rue_house mentally lays out every way to intersect a slot with a cylinder
[01:04:21] <katsmeow> lay it down in the mill i don't have, and slot it
[01:04:45] <rue_house> of you have me really curious to what your up to
[01:05:12] <katsmeow> flat the outside of the cylinder at the slot, nicely covered with a leaf, the valve can be so close it's almost the ID curve of the bore
[01:06:04] <rue_house> at 937rpm, you get 9.81G
[01:06:39] <rue_house> oh its my pump!
[01:06:42] <rue_house> heh
[01:07:13] <rue_house> 167 rps
[01:07:30] <rue_house> about 6ms
[01:08:18] <rue_house> at 1cm, 10krpm equates to 1118G
[01:08:27] <rue_house> so, water pressure would be
[01:08:52] <rue_house> about 16psi
[01:09:05] <katsmeow> <cough>
[01:09:06] <rue_house> ok
[01:09:14] <rue_house> thats a 1cm disc
[01:09:45] <rue_house> iiinteresting
[01:09:55] <rue_house> lets try a 4cm disc (radius)
[01:10:20] <rue_house> 63psi
[01:11:55] <rue_house> at 63psi, what flow is 1HP?
[01:12:47] <katsmeow> whatever youlook it up in, specify air or water, it will make a difference
[01:14:24] <rue_house> about 27gpm
[01:15:18] <rue_house> if I have 35 of those
[01:15:33] <rue_house> what combination do I use to drive a truck
[01:15:58] <katsmeow> 35 one hp motors??
[01:16:06] <rue_house> yea
[01:16:11] <rue_house> at 10krpm
[01:16:28] <katsmeow> those van cleaner motors?
[01:16:36] * rue_house looks at the floor...
[01:16:38] <katsmeow> vac
[01:16:40] <rue_house> yea...
[01:17:37] <katsmeow> i dunno that 35 hp is enough to climb the hill to get home
[01:17:41] <rue_house> oo I could put a variable dispalcement motor right on the diff...
[01:17:54] <rue_house> hey, its supposed to work out to 80hp
[01:18:01] <rue_house> must be almost 2hp ea
[01:18:03] <rue_house> hmmm
[01:18:04] <katsmeow> you'll be carrying and discharging 40hp of batteries to turn the 35hp worth of motors
[01:18:12] <rue_house> this fish is getting longer by the second
[01:18:25] <rue_house> well, thats part of the thing, normal driving wouldn't come close to that
[01:18:44] <rue_house> it dosn't, cause with a normal amount of battery people drive electric vehicles fine
[01:19:09] <rue_house> but its nice to be able to sheer the drive shaft off if you really want to
[01:20:00] <katsmeow> shear
[01:20:16] * rue_house puts away the driveshaft sheers
[01:20:58] <rue_house> kat, its been nice, I'm going to bed
[01:21:14] <rue_house> go, or come with me, whatever you fancy
[01:21:31] <rue_house> but I'm going down for the night
[01:21:32] <katsmeow> thanks for the options
[01:21:35] <katsmeow> gnites
[01:24:05] <rue_bed2> you always lived alone then?
[01:24:31] <katsmeow> no, but mostly
[01:24:54] <rue_bed2> I'm wondering if its driving me crazy
[01:25:16] <rue_bed2> I was completely open to the possability
[01:26:27] <rue_2bed> seems to flow better
[01:26:59] <katsmeow> insanity?
[01:27:09] <rue_2bed> so, if I cut the square in half angle wise and weld it sideways for a dovetail like thing...
[01:27:27] <rue_2bed> well there is not normal, and insane
[01:27:32] <katsmeow> if humans get involved, they'll cage you so they can tell you every thing you do every minute, to be helping you
[01:27:43] <rue_2bed> I think there is a really wide grey margin
[01:28:35] <rue_2bed> this reminds me of the insane asylum in the hithikers guide
[01:28:52] <rue_2bed> when you enter the building, you have left the asylum
[01:29:36] <rue_2bed> on the outside of the door it says 'goodbye', and on the inside it says 'welcome'
[01:39:40] <katsmeow> " i think i'll name you Benin Jerries, because you make me happer than eating ice cream"
[01:42:30] <rue_2bed> ....hmm
[07:10:32] <Tom_itx> they are called schrader valves
[07:11:24] <Tom_itx> https://www.schraderinternational.com/Products/Product-Folder/NA-Valve-Cores?sc_lang=en-US-NA
[23:33:11] <zhanx> So my appointment today was bad, shit and worse
[23:35:17] * katsmeow had no hope
[23:35:30] <zhanx> I had a little
[23:50:27] <rue_house> they decided not to do it?
[23:50:51] <rue_house> or they proved themselvs completely incompitent
[23:54:28] <zhanx> Both in my eyes but next appointment is 2 may
[23:55:06] <rue_house> did they bring up a pic of your arm and start pointing to it saying what they were gonna do to fix your back?
[23:55:34] <zhanx> No
[23:55:34] <rue_house> was anyone wearing glasses with eyes on springs
[23:55:49] <zhanx> Mri from 3 years ago
[23:56:03] <rue_house> hmm
[23:56:13] <rue_house> thats prolly out of date
[23:56:36] <zhanx> Just a tad bit maybe, but I am no md
[23:57:15] <zhanx> So guess who is build an exo suit?
[23:57:30] <rue_house> FINALLY
[23:57:42] <rue_house> work with me on it eh?
[23:57:51] <zhanx> Rue you want me to make one eh?
[23:58:25] <rue_house> your one of the few people in the matrix of circumstances that might make it happen
[23:58:26] <katsmeow> guy wearing one finished walking th wBoston Marathon this year
[23:58:52] <rue_house> a power suit?
[23:58:55] <zhanx> Looking for my experiment on brain waves still
[23:59:18] <rue_house> your muscles are still responding
[23:59:22] <zhanx> I was able to trigger based on a smile to the puter
[23:59:39] <zhanx> I am planning on them messing up
[23:59:54] <rue_house> humans employ pulse freq modulation, with automatic gain control