#linuxcnc | Logs for 2015-04-07

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[04:05:56] <renesis> deejay: hi
[04:07:59] <Deejay> hi there :)
[05:59:40] <_methods> wow you guys had quite a night
[06:24:02] <rootB> hey linuxCNC, where can i buy 608 bearings that wont cost me a fortune
[06:24:41] <MrSunshine> ebay? :P
[06:25:39] <MrSunshine> http://www.bearingboys.co.uk/608-ZZ_Shielded_Miniature_Ball_Bearing__Pack_of_10__-7731-p
[06:26:11] <MrSunshine> http://www.ebay.com/itm/10pcs-608ZZ-Deep-Groove-Ball-Bearing-8mm-22mm-7mm-for-3D-Printer-8mm-/261835452516?pt=LH_DefaultDomain_0&hash=item3cf69bf064 1/8 of the price :P
[06:26:42] <_methods> yeah you can get them cheap on ebay
[06:27:31] <MrSunshine> dirt cheap realy ... tho the quality might lack some but .. i mainly use bearings like that for extra support berings etc so quality is not realy an issue =)
[06:27:35] <MrSunshine> for me
[06:27:44] <_methods> yeah
[06:27:44] <MrSunshine> for linear rails etc .. go for a real linear rail insted =)
[06:28:31] <MrSunshine> beringboys is half the price in sweden ... and ebay is 1/8 the price of bearingboys ...
[06:28:35] <MrSunshine> sweden feels quite expensive :P
[06:29:57] <MrSunshine> hmm thinking of upgrading the rails on my machine .. tho im undescided ... supported round rail .. or those square rails ...
[06:30:25] <MrSunshine> but my biggest problem is the floor i think ... standing on wooden floor and the whole freakin thing moves when the machine switches direction :P
[06:30:29] <MrSunshine> the floor that is
[06:54:51] <the_wench> the_wench: Jymmm said !later the_wench
[08:19:03] <Guest86946> Hi guys. I'm trying to access numbered parameters from an NGC file like I could when using pointers in C: #[5221+#<my_index>] (so I can hand over a "base reference" and use offsets to access the right parameter)
[08:19:07] <Guest86946> Is this possible?
[08:25:02] <archivist> what is the purpose, there may be another way
[08:34:42] * archivist taps on the screen to see if the mic is on
[08:35:41] <JT-Shop> logger[mah], log
[08:35:41] <logger[mah]> JT-Shop: Log stored at http://linuxcnc.mah.priv.at/irc/%23linuxcnc/2015-04-07.html
[08:37:55] <JT-Shop> _methods, 2.25" deep and I use ER collets to hold the drills
[08:44:21] <_methods> yeah that's pretty deep
[08:44:38] <_methods> guess not too bad for that size hole
[08:44:41] <_methods> 3xd
[08:46:04] <_methods> well if your drills are drilling over you may not need to get a size up
[08:46:15] <Guest86946> @archivist nevermind, found it. `#[5221+3]` really works, only (debug, ) seems to have a problem with that
[08:48:36] <archivist> Guest86946, ok
[09:06:08] <JT-Shop> would you peck drill with say 3/8" then drill with 5/8" then 63/64"?
[09:08:31] <_methods> yeah that's probably a good plan
[09:09:08] <archivist> may center drill so the first is in the right place then tend to just find a drill on top of the pile to peck the first attempt
[09:09:12] <_methods> that should be a pretty safe step
[09:10:21] <JT-Shop> ok, I'll start with a 1/2" spotting bit
[09:10:32] <archivist> anybody doing nothing and fancy a page of proof reading http://www.archivist.info/cnc/screw_error/NPL_drawings.php
[09:10:36] <_methods> yea definitely spot if you're using HSS
[09:12:47] <_methods> if i'm using carbide drills or inserted drill and the tolerance isn't nasa level i'll skip spotting sometimes
[09:15:48] <SpeedEvil> https://en.wikipedia.org/wiki/NOAA-19#Damage_during_manufacture NASA level precision
[09:16:09] <_methods> hehe
[09:16:16] <_methods> oops
[09:16:34] <_methods> i thought you bolted it down
[09:16:52] <archivist> no you did
[09:17:56] <SpeedEvil> It's an excellent cautionary tale.
[09:24:48] <malcom2073> Man, can you imagine hearing about that, and being that tech that removed the bolts
[09:24:53] <malcom2073> and thinking "Um.... didn't I document that?"
[09:33:58] <ssi> morn
[11:46:04] <Loetmichel> re from bringing glass to the recycling container... and buying some wood planks top do a rack for the kitchen... its spring after all, cleaning the house ;-)
[11:46:12] <Loetmichel> -p
[12:36:39] <dirty_d> are you guys making money with your cnc machines?
[12:36:52] <dirty_d> and if so doing jobs or producing some type of product?
[12:36:58] <dirty_d> id like to give it a shot
[12:37:07] <SpeedEvil> I need to get the dies right, and find a source of the right paper, then I can
[12:37:33] <dirty_d> haha, that took me a minute
[12:37:49] <SpeedEvil> Some people in here are doing actual CNC shops
[12:37:58] <SpeedEvil> Using linuxcnc to control stuff.
[12:38:06] <dirty_d> yea, i only have my one machine
[12:38:07] <SpeedEvil> Others are simply doing hobbiest projects
[12:38:35] <dirty_d> i mostly would like to do hobby stuff, but if i can fund the hobby stuff with otehr stuff, that would be great
[12:38:38] <SpeedEvil> And others (me) are just gathering info to do a CNC thingy
[12:38:57] <dirty_d> building a machine?
[12:39:04] <SpeedEvil> yes
[12:39:10] <dirty_d> from scratch?
[12:39:15] <SpeedEvil> yes
[12:39:27] <dirty_d> how do you plan on doing that, with linear rails and stuff?
[12:39:51] <SpeedEvil> Well...
[12:39:56] <SpeedEvil> A couple of projects.
[12:40:11] <SpeedEvil> A 1.2*2.4m or so router.
[12:40:32] <SpeedEvil> Rigid enough to tollerate ~100kg cutting forces
[12:40:59] <SpeedEvil> I'm using a lot of wood
[12:41:33] <SpeedEvil> Cast iron is awesome.
[12:41:48] <SpeedEvil> But - wood of a fairly moderately larger section can be as rigid
[12:42:09] <Tom_itx> not as stable
[12:42:18] <SpeedEvil> Indeed.
[12:42:48] <SpeedEvil> Would I like an inch thick 2.4*1.2m table, with lots of ribbing that can hold .001mm tolerance, ...
[12:43:23] <SpeedEvil> Thermowood is interesting.
[12:43:48] <SpeedEvil> Thirds the hygrometric expanstion coefficient
[12:45:17] <dirty_d> 0.001mm tolerance is is like NASA
[12:45:21] <dirty_d> or better
[12:45:42] <dirty_d> did you mean 0.01?
[12:45:57] <dirty_d> i think that would still be really hard
[12:46:07] <dirty_d> especially because of the size
[12:48:53] <SpeedEvil> Practically, I want to hold ~0.5mm or so over that distance.
[12:49:09] <dirty_d> that should be easy
[12:49:22] <dirty_d> well im not sure if it will if you use wood to build it
[12:49:53] <SpeedEvil> To a degree, I don't care about table flatness to that degree - as the work will conform
[12:49:54] <dirty_d> buy maybe
[12:50:10] <SpeedEvil> It'll be mostly used for cutting sheet-goods.
[12:50:11] <dirty_d> the software can compensate for the squareness and stuff
[12:50:59] <dirty_d> actually it would probably be easier to just adjust it to close to perfect by hand
[12:56:57] <archivist> dirty_d, I make gears and similar to order, but customers are rare
[12:57:26] <dirty_d> yea it would have to be something thats hard to buy elsewhere or is unique in some way
[12:57:38] <dirty_d> maybe border on the line of legality, lol
[12:58:02] <dirty_d> but on the legal side of course, lol
[12:58:30] <archivist> I make smaller things than most can http://gears.archivist.info/
[13:03:35] * SpeedEvil wishes he could buy some gears.
[13:04:30] * archivist points SpeedEvil at HPC gears for cheap
[13:05:20] <SpeedEvil> I want to make a little ~18*90*90mm or so thing that unfolds into a foot-pedal.
[13:05:25] <XXCoder> archivist: how much would one of those small gear be
[13:05:54] <SpeedEvil> It then can provide 40W or so power by stepping repeatedly on it
[13:05:57] <archivist> XXCoder, they can take me a day to setup and make one
[13:06:02] <SpeedEvil> (20W if you're not s fit)
[13:09:22] <XXCoder> so, billion bucks?
[13:09:30] <dirty_d> SpeedEvil, for what?
[13:09:45] <archivist> XXCoder, those verges took a few days of experiments to get it right, was working for ex boss at the time I think he charged a few hundred pounds for one mounted
[13:09:50] <SpeedEvil> dirty_d: portable charger
[13:09:54] <dirty_d> ahhh
[13:10:22] <SpeedEvil> dirty_d: Small battery able to take the ~1/3 duty cycle, and make it continuous (and act like a spring for the motor)
[13:11:03] <XXCoder> archivist: interesting. ever made your own "master art project"?
[13:11:31] <XXCoder> a project that has no reason besides showing "I am damn awesome on this".
[13:14:16] <archivist> XXCoder, well that contrate gear next to the matchstick is a bit like that, I got a request can I make x, I had a go, that is the result, lunatic went quiet after I mentioned how long it took
[13:14:55] <_methods> i'm pretty sure that merlin clock rebuild qualifies for the how awesome i am award
[13:15:01] <XXCoder> that do look tough
[13:15:37] <XXCoder> wonder if you could make entire pen, including mechism inside
[13:15:42] <archivist> _methods, that is another example of customer going quiet on us
[13:15:47] <_methods> i bet
[13:17:01] <_methods> you had to have some hours in that thing
[13:18:07] <archivist> I did that was also while I was at the previous job, I put the work on the net, boss asked for a stage payment, we heard nothing more
[13:18:39] <_methods> well you got to keep the clock i guess hehe
[13:18:48] <archivist> boss has it
[13:19:12] <archivist> I got milling machine and lathes and
[13:19:52] <XXCoder> whats guy expect? $10 bill? lol
[13:20:24] <archivist> with customers like that he could not afford to employ me any more
[13:21:31] <XXCoder> you has another job now?
[13:22:13] <archivist> no, "trying" to be self employed
[13:23:42] <XXCoder> ok
[13:34:29] <_methods> wow kickstarter........
[13:34:35] <_methods> https://www.kickstarter.com/projects/1363754907/brick-lamp-reveal-the-light
[13:36:37] <archivist> rofl milled precisely out of a single piece of solid aluminum block by a Computer Numeric Controlled machine
[13:37:07] <_methods> the stuff on kickstarter is like the stuff they sell on QVC
[13:37:48] <archivist> shite
[13:38:02] <_methods> yeah that
[13:38:03] <_methods> lol
[13:38:36] <dirty_d> hmm
[13:38:42] <dirty_d> maybe i can make a bartender-o-matic
[13:38:43] <archivist> I get a lot more fun out of a dead measuring machine on fleabay
[13:39:03] <_methods> they already have barbot
[13:39:10] <dirty_d> reason i didnt was there were no affordable peristaltic pumps
[13:39:18] <dirty_d> but i could easily make on with my cnc machine
[13:39:22] <dirty_d> well not one
[13:39:22] <_methods> you can make your own pretty easy
[13:39:27] <archivist> work out how it works, work out what is missing, make parts, repair restore
[13:39:47] <_methods> plenty of people make diy peristaltics
[13:39:57] <_methods> using surgical tubing and some large ball bearings
[13:41:17] <_methods> http://www.instructables.com/id/Inexpensive-easy-to-build-peristaltic-pump/
[13:41:27] <_methods> heh that guy used some wheels and tube
[13:41:42] <Rab> "For $25 backers, we will send you a concrete accessory of your choice either a paper weight or necklace."
[13:41:55] <_methods> pet rock maybe lol
[13:42:21] <archivist> concrete necklace for being a cheapskate
[13:42:39] <_methods> concrete shoes heheh
[13:43:43] <archivist> used to be a common accessory of the mob
[13:46:25] <Rab> Metal version: 1500g
[13:52:15] <dirty_d> trying to work out what diameter tube to use
[13:52:29] <dirty_d> i figure youd want to be able to dispense 250ml in 30 seconds
[13:52:37] <dirty_d> at a reasonable RPM
[13:52:49] <dirty_d> not sure whats the max RPM for that type of pump
[13:55:35] <_methods> technically you don't have to use peristaltic unless you plan on serving with it in a real establishment
[14:09:53] <ssi> a cheap peri pump would be a decent 3d printer project
[14:11:49] <_methods> yeah
[14:12:25] <archivist> and last all of .00001 revolutions
[14:12:39] <ssi> depends how you did it
[14:14:02] <_methods> haha my buddy has been playin a bunch of FTL
[14:14:23] <_methods> he just told me he can't watch star trek anymore cause he wants to yell at teh screen and tell them what to do
[14:32:06] <Cromaglious> just got my 3,4,5,6,8mm taps, tonight I can start modding the 3040 with tapped holes
[14:35:02] <archivist> wotno 10,12,15 mm taps!
[14:35:31] <XXCoder> 500 mm tap
[14:36:28] <XXCoder> _methods: that kickstarter has nice logo montage too lol
[14:36:35] <_methods> hehe
[14:36:48] <XXCoder> it has logo "whatever" LOL
[14:37:35] <XXCoder> design is cool, but not hundreds of bucks cool.
[14:37:55] <XXCoder> wtf it has nonstandard usb connection
[14:38:01] <XXCoder> why the fuck
[14:38:48] <_methods> https://www.youtube.com/watch?v=qPKKtvkVAjY
[14:39:06] <Rab> XXCoder, 2.1mm barrel connector is pretty standard for power.
[14:39:18] <XXCoder> hm ok
[14:39:38] <Rab> I don't know why they don't just use a USB jack, though...maybe it doesn't hold up.
[14:39:40] <XXCoder> I guess more realiable connection
[14:39:47] <XXCoder> or easier to secure
[14:44:41] <_methods> anyone in here have a 4th axis on a minimill?
[14:45:02] <_methods> are there any recommended 4th axis setups out there?
[14:45:03] <XXCoder> not me, but yeserday I used 4th axis for first time. interesting indeed
[14:46:17] <_methods> from the looks of the ones i see on ebay i'd probably be better off just making my own
[14:52:13] <archivist> _methods, about the cheapest and has a specification is the Vertex rotary
[14:52:44] <archivist> all the cheap crap have no angular specification
[14:53:43] <archivist> remove handle and add a conversion tube and a motor of some sort
[14:56:18] <XXCoder> hey furrywolf
[14:56:27] <XXCoder> hows things
[14:57:16] <furrywolf> uncomfortable.
[14:58:31] <XXCoder> oh well
[15:02:14] <XXCoder> http://www.carsdirect.com/car-repair/how-to-repair-a-windshield-crack-along-the-edge-of-the-windshield
[15:02:24] <XXCoder> wonder if its anywhere near true lol
[15:02:26] <XXCoder> doubtful
[15:03:21] <furrywolf> my experience with crack repair is your best bet is to wait until a cop complains (chances are it'll never happen), then buy a new one.
[15:03:33] <XXCoder> yeah thats my current polan
[15:03:43] <XXCoder> my van has one from bottom to top
[15:03:55] <XXCoder> its holding on by habit basically
[15:04:09] <furrywolf> I've used several windshield repair kits, including a fancy one with UV cure resin, and none of them lasted past the first speedbump.
[15:04:35] <XXCoder> even when cured long enough?
[15:04:56] <furrywolf> I talked to a windshield repair guy once, and he confirmed that's the expected outcome. what he does to keep cracks from spreading is drill the end of the crack, like you would a cast iron crack repair, and just accept it'll never look good again.
[15:05:59] <furrywolf> he drills them, then uses resin to fill the crack and the hole he drilled. the crack won't stay invisible as soon as you drive, but it'll be less visible, and the drilled hole is what actually stops it from growing.
[15:06:16] <furrywolf> I watched him do it... little diamond bit in a dremel.
[15:07:10] <XXCoder> https://www.ehow.com/how_6309617_fix-windshield-crack-krazy-glue.html
[15:07:19] <XXCoder> bit more realistic. it even says it will evenually wear
[15:07:53] <furrywolf> heh, ehow's ssl cert is still pissing off firefox. why the hell is that ssl anyway?
[15:08:24] * furrywolf removes a pointless "s" and it loads twice as fast, and correctly
[15:08:40] <XXCoder> it just says "this site did not send identification"
[15:08:52] <Rab> I've seen the drill trick recommended before.
[15:09:27] <furrywolf> that's another article written by someone who has NO FUCKING CLUE how a windshield works.
[15:09:32] <furrywolf> get advice from non-spam sources.
[15:09:37] <_methods> archivist: thanks guess i need to keep doing research
[15:09:39] <Rab> In TX, windshield isn't part of the safety inspection: it can even be missing entirely. If the wiper blades are in required condition, you'll pass.
[15:10:05] <XXCoder> Rab: I wonder if car passing inspection would be drivable lol
[15:10:13] <furrywolf> Rab: a friend broke out the windshield on his nissan hardbody when he rolled it... his solution was a pair of oven grilles. keeps the branches out!
[15:10:29] <Rab> XXCoder, cool steamjunk goggles to the rescue.
[15:10:43] <XXCoder> do it state engine is required for one? ;)
[15:11:27] <Rab> Well, it has to pass emissions standards (in this county). Might be difficult to perform the test.
[15:11:44] <furrywolf> no, it's passes easily - it's a zero-emissions vehicle. :P
[15:11:54] <XXCoder> true
[15:11:57] <archivist> _methods The vertex is from taiwan and seems a real quality item, watch the rest of the low cost, I had fun measuring some rotaries because we got some bad gears once
[15:12:03] <XXCoder> zero power but hey zero emissions!
[15:12:18] <_methods> i'll check those out
[15:12:59] <furrywolf> argh, the amount of utterly worthless spam in google results just keeps going up.
[15:13:02] <XXCoder> furrywolf: I once repaired my old car with cellophane tape lol
[15:13:03] * furrywolf misses altavista
[15:13:43] <XXCoder> rock hit and damaged it badly. I didnt have enough money for over a week. glad cops missed it lol.. tape was to keep rain out as well as hold peices together
[15:14:57] <furrywolf> http://windshieldrepairkits.com/technicalmanualPDF.pdf
[15:15:00] <furrywolf> seems non-spam
[15:15:02] <furrywolf> (product manual
[15:15:57] <furrywolf> things like windshield cracks are what cops use to pull you over if they want to check your license, registration, insurance. normally they won't pull you over just for them.
[15:16:09] <XXCoder> yeah not worth money
[15:16:58] <andypugh> archivist: A 1936 lathe. 14.5PA or 20PA gears, at a guess?
[15:17:02] <furrywolf> in most places it's just a fix-it ticket, so the cops don't get to pocket a large profit.
[15:17:36] <furrywolf> and you hassle them to get it inspected, using more officer time.
[15:17:49] <archivist> andypugh, I would measure :)
[15:18:12] <furrywolf> unlike license, registration, and insurance tickets, which do absolutely nothing to improve road safety, but are hundreds or thousands of dollars of pure profit to stuff in their pockets.
[15:19:30] <furrywolf> as a side windshield-related note, I watched them cut the new one for my jeep... it was interesting. The guy scored both sides, cracked it, dumped lighter fluid in the crack, then lit it on fire.
[15:19:48] <andypugh> archivist: Do you know a good way to measure?
[15:20:05] <archivist> andypugh, take a picture and I can measure
[15:20:05] <furrywolf> the heat in the crack softened the laminate so he could spread it enough to get a razor knife it to cut it.
[15:20:34] <andypugh> I have heard of a cunning method of rolling on plasticine to make a rack then measure the rack
[15:21:16] <XXCoder> fgur, that pdf is interesting
[15:21:20] <archivist> andypugh, this is not on the pcd but shows the method http://www.collection.archivist.info/showresult.php?prog=1&srcprog=searchv13.php&srcdata=title&Type=PD&Accn_no=9277&subject=26611
[15:21:42] <andypugh> I have measured tooth spans according to the normal calcs and get:
[15:21:43] <andypugh> http://pastebin.com/seNFV7b0
[15:22:26] <furrywolf> XXCoder: that pdf was written by someone who actually has repaired a windshield, not someone trying to bullshit google spam.
[15:22:32] <XXCoder> indeed
[15:23:45] <andypugh> archivist: So, draw on a PCD circle, then measure tangents?
[15:24:27] <andypugh> I wonder how much it really matters for lathe apron feed gears?
[15:24:43] <archivist> andypugh, actually I should scan an image I have here of a measuring method you could implement on the mill, dti on a rack side and roll the gear on the rotary
[15:25:17] <archivist> yes for screw cutting, that is a source of error
[15:25:17] <andypugh> I think the span measurments strongly suggest 20PA.
[15:25:46] <andypugh> archivist: You don’t cut screws with the feed gears….
[15:26:00] <archivist> just got a thread pitch measuring machine and the NPL doc mentions the error sources
[15:26:37] <archivist> often the same gear types are used in the other trains
[15:28:21] <archivist> is this for the Rivett
[15:28:46] <andypugh> Yes. Well, not actually for my Rivett, another owner has had his make a right mess of themselves.
[15:30:29] <archivist> I updated my hob page a bit, now calculating the dp, mod, cp and measured (where done) to compare them
[15:33:48] <andypugh> I showed you my Glade/Python hobbing screen that does the calcs?
[15:34:23] <archivist> yes
[15:35:09] <andypugh> It’s not pretty, but it does what I need.
[15:35:33] <archivist> I was measuring a hob the other day and tooth pitch was .0613 in but was marked .0256 cp!
[15:36:03] <archivist> I have some more of the same correctly marked
[15:36:19] <andypugh> Not even a multi-start hob then?
[15:36:28] <andypugh> (Do they even exist?)
[15:36:37] <archivist> no, it is a funny tooth form too
[15:37:13] <andypugh> Spline cutter?
[15:37:25] <archivist> dont think you need specials for that just rotate more
[15:37:54] <archivist> could be spline but .0613 cp is small
[15:38:24] <archivist> stubby teeth and not straight sided
[15:38:37] <andypugh> Watch splines :-)
[15:39:11] <archivist> more like electricity meters or car speedos, I think the came from Smiths
[15:40:04] <archivist> I think my barber colman is ex smiths too
[15:45:44] <furrywolf> I've never cut gears... it's something I'll need to do one of these days.
[15:46:06] <XXCoder> always wanted to make a gravity clock
[15:49:25] <furrywolf> a local restaurant here used to have a fake pendulum clock. it always annoyed me.
[15:50:04] <furrywolf> it had a complete moving pendulum... that was completely unsynchronized with the quartz clock movement over it.
[15:51:20] <XXCoder> lol
[15:54:34] <furrywolf> I'm getting a slightly-old regulator clock from my grandfather's stuff... 31 days on one winding, so not that old. heh.
[15:54:45] <XXCoder> nice
[15:54:52] <XXCoder> I once made one using lego
[15:55:00] <XXCoder> well windup mechism anyway
[15:55:08] <XXCoder> it could last 3 hours so still useless
[15:55:23] <XXCoder> other guy did 24 hours one
[15:55:33] <archivist> erm 31 days...... that usually means Korean clock
[15:57:29] <furrywolf> it's a relatively modern, simple clock... separate springs for clock and chimes. if I remember right, it's a little sticky, as he was complaining it only lasted two weeks these days.
[15:59:19] <archivist> they wear quite a bit too
[15:59:52] <furrywolf> it kept excellent time, at least.
[16:00:24] <furrywolf> https://www.pinterest.com/pin/96968198197096527/ similar to that one (probably not identical - I haven't seen it in a while...)
[16:03:13] <furrywolf> do you oil clocks like that, or blast everything clean with degreaser and let them run metal-on-metal?
[16:03:27] <XXCoder> http://www.woodenclocks.co.uk/
[16:03:44] <XXCoder> wild guess is degrease, clean, oil?
[16:04:12] <furrywolf> the only thing I've ever tried was a watch, and I found even the lightest oil made it suck, while brake cleaner made it work. :)
[16:04:29] <XXCoder> strange
[16:05:10] <furrywolf> http://www.woodenclocks.co.uk/wpimages/wp1ea2cf8c_06.png ... that's supposed to be a clock hand, right? lol
[16:05:41] <XXCoder> https://www.youtube.com/watch?v=ir6KkKH0LJw
[16:06:07] <XXCoder> strange clock there fur
[16:07:24] <furrywolf> hrmm... I bet it'd be pretty easy to hide a radio clock receiver inside a pendulum weight, that combined with an accelerometer, measures its ongoing frequency against the time standard, and adjusts a little weight up and down to make the mechanical clock keep perfect time...
[16:08:11] <XXCoder> lol https://www.youtube.com/watch?v=IzznSFmz5rM
[16:08:16] <XXCoder> most gears arent circle
[16:11:14] <archivist> silly music, cannot hear the scraping
[16:11:28] <furrywolf> I had fun once using non-circular bicycle sprockets for things other than crank chain rings... as long as you phase them properly, you can make them work...
[16:12:04] <XXCoder> yeah I bet. doesn't it also alter ratio constantly?
[16:12:37] <furrywolf> archivist: you archive documents online, right? I have a bunch of stuff I was going to scan and post one of these days... might send you a copy for your collection too. a collection of ~20 documents on original edison batteries. specs, maintenance, user manuals, etc.
[16:13:54] <archivist> furrywolf, I have dead trees, then scan when I get a request
[16:14:25] <archivist> not many have links to download because not scanned :)
[16:14:45] <archivist> it takes ages
[16:15:27] <XXCoder> archivist: heard of book scanner?
[16:15:49] <archivist> heard of poverty ?
[16:16:03] <XXCoder> well I didnt say it was expensive lol
[16:16:06] <archivist> and they dont do fold outs
[16:16:08] <furrywolf> yay, I'm not the only one with that problem.
[16:16:51] <furrywolf> although, as a note, there's some very good DIY book scanner plans online, complete with open-source software to do page decurling, etc.
[16:16:58] <archivist> today I transcribed a few pages
[16:17:07] <XXCoder> furrywolf: yeah that was what I was thinking
[16:17:23] <XXCoder> whats still very hard is auto page turn
[16:17:48] <furrywolf> yep
[16:17:58] <archivist> as far as I know not seen a diagram unfolder
[16:18:23] <XXCoder> archivist: wonder if cnc pick and placer would be able to do it
[16:18:50] <archivist> no, they cant see how it was folded
[16:19:12] * furrywolf suspects folded diagrams make up a relatively small portion of printed material
[16:19:17] <archivist> some just has to be hand done
[16:19:35] <archivist> instruction manuals!
[16:20:39] <furrywolf> I don't think there's any folded diagrams in my collection of Edison battery literature. :)
[16:20:40] <archivist> I have a request in today, I have 3 copies, offered the person a real original, no, he wants a scan!
[16:20:49] * furrywolf will probably just stick them on a flatbed scanner one page at a time
[16:21:13] <XXCoder> archivist: true, it wouldnt be able to see it.
[16:21:19] <XXCoder> though as page turner HMMMM
[16:21:41] <XXCoder> one placer and another cnc arm to hold other side down as page is being turned
[16:21:50] <archivist> http://www.collection.archivist.info/diva/lucastp1.html
[16:21:54] <XXCoder> harware easy, software probably unobtainable
[16:22:04] <furrywolf> there was a really nice collection of handwritten edison battery documents on ebay once, but it went for a price with several more zeroes than I'd have considered. they were test results from using them for submarine power, so I guess the money-having military collector types were into them.
[16:23:06] <furrywolf> XXCoder: my plan for an auto page turner was a few suction cups, a cam mechanism, and an air blast mid-turn on the egde of the pages to help unstick stuck pages.
[16:23:17] <furrywolf> no cnc needed. :P
[16:23:36] <archivist> I have jag engine test records
[16:23:48] <archivist> http://www.collection.archivist.info/diva/systrondonner1626.html#p=97&z=1
[16:24:03] <furrywolf> did they fail as badly in tests as they did in the real world? :P
[16:24:35] <SpeedEvil> https://www.youtube.com/user/AgentJayZ is awesome
[16:24:45] <SpeedEvil> Working jet engine mechanic channel
[16:24:48] <archivist> may have had the odd broken drill in an oilway
[16:25:07] <SpeedEvil> The shaft couplers are mental
[16:25:27] <ssi> half my friends are jet mechanics :P
[16:25:31] <SpeedEvil> - if you need to be able to dissasembe and reassemble a jet engine without having to rebalance it they have to be
[16:25:43] <archivist> hirth coupling iirc
[16:26:09] * furrywolf concludes ssi has two friends
[16:26:17] <ssi> at most
[16:26:32] <ssi> I seriously know like sixteen jet mechanics :P
[16:27:12] <ssi> in fact I know of three people who have cutaway engine or APU displays in their personal hangars
[16:27:34] <XXCoder> furrywolf: nice
[16:28:47] <XXCoder> whooo http://the-digital-reader.com/2015/04/07/dasungs-13-3-e-ink-monitor-goes-up-for-pre-order-950/
[16:28:48] <furrywolf> also, I took apart a machine once that used suction to apply labels to packages... it had no vacuum pumps.
[16:28:53] <furrywolf> or valves
[16:29:39] <furrywolf> instead, the cam mechanism had a couple small automotive airbags linked to it, that the cam mechanism would pull on while picking up the label, and push on while sticking the label.
[16:29:45] <furrywolf> I found that very clever. :)
[16:29:57] <XXCoder> yeah
[16:30:11] <XXCoder> no pumps to wear out
[16:30:32] <archivist> bags wear too
[16:30:38] <XXCoder> yeah but longer life
[16:31:08] <archivist> a printer I used to work on had a bladder under the head to nod it forward
[16:31:12] <Deejay> gn8
[16:31:35] <furrywolf> the machine was, in fact, scarrily complex. EVERYTHING ran off a giant cam. it had one big motor running the cam through a 50:1 reduction gearbox, and everything was a follower on the cam. picking up packages, moving them, sealing them, applying labels, etc, etc... all mechanical off the one cam. way, way, way too many moving parts. It was full of chains - and all of them reciprocated. none of them moved a full loop.
[16:31:35] <XXCoder> archivist: even solid sphere wears down if its used
[16:31:48] <XXCoder> very long life but everything wears with use.
[16:33:03] <furrywolf> from what I could gather, it stuck fried chickens on a piece of styrofoam, shrinkwrapped them, then stuck a label on top. at least that's what I could tell from the remaining parts, and the fact it was filled with dried chicken fat and "rotissary chicken $3.99" labels. :)
[16:33:15] <XXCoder> lol
[16:34:10] <furrywolf> I got several nice buckets of parts out of it. chains, sprockets, four small airbags, shafts, bearings, 50:1 worm box, etc.
[16:34:19] <furrywolf> $0.50/lb :)
[16:34:26] <XXCoder> and lots labels!
[16:34:30] <XXCoder> dont forget that ;)
[16:35:22] <furrywolf> ... $950 for a 13" monitor? you can get a really nice high-end graphics monitor for that...
[16:35:29] <Cromaglious> sorta like the old screw machines... Everything was cam driven
[16:35:34] <furrywolf> no, I left the labels stuck to the remains. lol
[16:35:36] <XXCoder> furrywolf: its first generation
[16:36:05] <XXCoder> but yeah im not buying, just glad theres now great epaper montiors coming, and I REALLY want to have one.
[16:36:26] <XXCoder> one of examples of perfect use is this irc screen
[16:37:29] <furrywolf> I fail to see a use for such a screen... ultra-low-power applications?
[16:37:50] <XXCoder> and anti-eye tired when reading long text
[16:37:57] <furrywolf> why would you want to irc on it? it's not backlit, the contrast is shit, the resolution is shit, and if you're in a busy channel, it'll scroll faster than the refresh...
[16:38:15] <XXCoder> heh monochrome its as fast as led
[16:38:43] <furrywolf> note how badly it's washed out by ambient lights in their demo
[16:38:56] <furrywolf> e-ink is great for when you're saving power, but I don't see it being useful for most applications.
[16:39:07] <XXCoder> yeah I didnt say it would be all that
[16:39:17] <XXCoder> just useful in certain uses
[16:41:09] <XXCoder> laters
[16:51:52] <furrywolf> https://sites.google.com/site/canadair50otherproducts/B47lge.jpg that's just so... wrong. lol
[16:54:54] <furrywolf> ssi: how would you like to fly something with thrust "slightly" off-center? :)
[16:55:17] <ssi> furrywolf: http://en.wikipedia.org/wiki/Rutan_Boomerang
[16:57:30] <furrywolf> that's pretty scary, yes.
[16:57:57] <furrywolf> but that doesn't have 30,000lbs thrust stuck only on one side of the tail. :)
[16:58:02] <ssi> true!
[16:58:39] <ssi> actually, almost all piston singles have the thrustline slightly off center
[16:58:53] <furrywolf> the image I pasted isn't slightly.
[16:58:58] <ssi> yeah I know
[17:04:59] <furrywolf> random trivia of the day: Each turbine blade in a rolls-royce trent extracts over a half a megawatt from the gas stream.
[23:03:54] <MacGalempsy> hello