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[00:14:21] <Casper> hmm I think I may need to buy those line level...
[00:14:41] <Casper> need to install some gutters, no idea if the roof is level...
[03:30:44] <hypodyne> howdy
[03:52:41] <Snert> Casper: you need the gutter to slant down anyways.
[03:53:06] <Snert> mine is about 2-3" drop across 50 feet.
[04:08:47] <z64555> Anybody ever play with a laser keyboard?
[04:10:43] <z64555> https://en.wikipedia.org/wiki/Projection_keyboard#/media/File:ProjectionKeyboard_2.jpg
[04:12:41] <z64555> tactile feedback is virtually nile, I would think. but if you include a vibrator on the emitter it might be workable
[04:13:07] <z64555> so when a key registers, the vibrator does a short pulse and vibrates the table
[04:13:38] <z64555> or course, that then presents the problem of having the emiiter bounce around if it's too light
[06:39:09] <pokmo> hi
[06:39:25] <pokmo> anyone know where i could get some toothed "lock washers" like this
https://www.grampianfasteners.com/product/676
[06:40:15] <pokmo> it's for holding a shaft in place
[06:44:24] <z64555> If it's for holding a shaft in place, you'd use a retaining ring, not a lock washer
[06:44:51] <z64555> Lock washers are for screws, it provides a continous pressure on them so they're less likely to come loose
[06:45:06] <z64555> https://www.fastenal.com/products/fasteners/retaining-rings-and-clips?r=~|categoryl1:%22600000%20Fasteners%22|~%20~|categoryl2:%22600135%20Retaining%20Rings%20and%20Clips%22|~
[06:45:53] * z64555 pokes the pokmo
[06:46:33] <pokmo> z64555, thanks. but the shaft doesn't have a groove
[06:46:44] <pokmo> isn't a groove needed for retaining ring?
[06:47:01] <z64555> ? How did you plan on using a lock washer then?
[06:47:10] <pokmo> z64555, just push on?
[06:47:18] <z64555> :[
[06:47:21] <pokmo> i'm guessing the teeth are springy?
[06:47:39] <pokmo> z64555, these ones?
https://www.fastenal.com/products/fasteners/retaining-rings-and-clips/retaining-rings/external-push-on-rings?r=~|categoryl1:%22600000%20Fasteners%22|~%20~|categoryl2:%22600135%20Retaining%20Rings%20and%20Clips%22|~%20~|categoryl3:%22600139%20Retaining%20Rings%22|~%20~|categoryl4:%22609829%20External%20Push-On%20Rings%22|~
[06:48:20] <z64555> what's your shaft look like
[06:48:39] <pokmo> z64555, it's M10, round
[06:48:54] <pokmo> well, 10mm in diameter rather than M10
[06:49:56] <z64555> hm, the ones you linked might work
[06:51:49] <z64555> I wouldn't trust it for a lot of pressure, though
[06:52:13] <pokmo> z64555, is a groove needed for retaining rings?
[06:52:38] <pokmo> else they'd just slide out, right?
[06:52:45] <z64555> for best results, yes. With the axially mounted rings they need to be a bit harder than they shaft they're installed on
[06:52:54] <z64555> if using without a groove
[06:53:12] <z64555> This is so they can bite into the material to prevent it from coming off
[06:53:46] <z64555> naturally, they're a devil to take off
[06:54:37] <pokmo> z64555, is the ring itself meant to create a groove or should a groove already be in place?
[06:55:21] <pokmo> https://www.rotorclip.com/images/wysiwyg_images/newsletter/ring_selection_fig8.jpg
[06:55:23] <z64555> as I've said, for best results the groove should be in place. If not, then the ring must "bite" into the axle
[06:57:00] <z64555> the grip ring can be used without a groove, as you can see in the photo, but it can still slip if there's too much pressure
[06:57:39] <pokmo> z64555, is the grip ring same as the retaining ring?
[06:58:04] <z64555> It's basically the same thing, perhaps a bit stiffer than the retaining ring
[06:58:16] <pokmo> right
[06:59:42] <pokmo> z64555, thanks
[07:00:06] <z64555> grip ring performs worse than the toothed ring, but it's easier to remove. Something to keep in mind if you intend to do maintenance. :)
[07:00:14] <z64555> best of luck!
[08:38:53] <owl-v-> what is the maximum length of spi communication at very high speed rate like 100Mbps ??
[08:39:31] <deshipu> bazillion exabytes
[08:40:15] <owl-v-> wire length
[08:41:22] <deshipu> I suppose it depends on the logic levels used
[08:41:33] <deshipu> and the kind of wire used
[09:15:27] <SpeedEvil> https://www.youtube.com/watch?v=ZbB0ECg1qOI - on wooden robots
[09:15:40] <SpeedEvil> Restoring the wiper motor powered forklift toy
[09:22:21] <deshipu> apply wd40 on everything
[11:54:12] <anniepoo> Mathias Wandel is God
[12:02:50] <SpeedEvil> He's pretty crap when it comes to metalwork
[12:03:19] <SpeedEvil> But has lots of awesome woodwork
[13:00:10] <theBear> but that's not the right spelling, i use double t's
[13:00:26] <theBear> Matthias
[13:00:46] <theBear> other name is bad too, and looking closer, i don't think i even type that much of ti in the past :)
[13:09:50] <deshipu> Maciej
[13:49:01] <z64555> owl-v: Max length of cable depends on its characteristic impedance and a number of other RF related factors. Cat-5 networking has a max length of 100m, I believe
[13:51:44] <z64555> https://en.wikipedia.org/wiki/Skin_effect#Impedance_of_round_wire
[13:57:25] <z64555> equation there mentions wave number, which is related to frequency. Seems higher frequencies would have higher impedance, but there's also those bessel functions to contend with
[13:58:55] <z64555> In general, cables can be thought as a filter, having higher impedance at some frequencies and lower impedance at others
[14:01:52] <z64555> with that in mind, the max range of a cable for a given system can be found if you know the voltage going in and the voltage going out. So you can skip the calculations and just hook up the cable to a suitable signal generator and use an oscilloscope on the other end
[14:02:32] <z64555> and then use a much simpler formula to find the cable's impedance per foot/meter/etc.
[16:49:38] <veverak> is there some circuit
[16:49:49] <veverak> to power 3.3v device from li-po and charge the li-po with solar ?
[16:51:03] <deshipu> lots
[16:51:36] <deshipu> https://www.sparkfun.com/products/12885
[18:09:28] <Philkill> Anybody have opinions about the snickerdoodle board?
[18:16:27] <SpeedEvil> My opinion is that it's a silly name
[18:26:39] <ace4016> makes me want cookies
[18:26:56] <ace4016> (i didn't see it)
[18:34:39] <Snert_> what is a thnickerdoodle voard?
[18:48:12] <z64555> veverak: yes, they're called voltage regulators. There's also the switch mode power supply (buck mode) which is much more efficient
[18:50:19] <z64555> oh, I didn't see the second bit about solar charging
[18:53:07] <z64555> http://krtkl.com/
[18:53:14] <z64555> 154 I/O pins? yummy.
[18:54:34] <z64555> having an FPGA on the same board as a uC opens up some interesting abilities
[18:55:21] <z64555> with an FPGA, you can extend the effective number of hardware i/o modules that the uC has, and of course make a scalable CPU
[18:55:33] <z64555> say, for example, a GPU
[18:56:35] <z64555> $65 seems to be a good price
[19:00:54] <theBear> forgive the delay, clip to follow\
[19:02:09] * Tom_itx waits for the movie clip
[19:03:23] <theBear> AHA ! if you find a caveman, but you looking for a bear, that err, ineffective at best...
[19:10:55] <theBear> oH WOW ! birdman attorney at law comes in spanish without subs too !?!?!?? someone is excited, and i odn't thinkit's you
[19:15:51] <theBear> Philkill, Snert_ , turns out i felt just over a minute before the answers to all your question, was appropriate due to the channel subject, and
https://www.youtube.com/watch?feature=player_detailpage&v=PAYzqS8pL4s#t=415 , tho i probably should have really chosen around
https://www.youtube.com/watch?feature=player_detailpage&v=PAYzqS8pL4s#t=524 which stillhas the best bear reference (tho not the philisophical bear-related musings,) but
[19:15:51] <theBear> you guys are smart, i'd be surprised if you really wanted to see more than
https://www.youtube.com/watch?feature=player_detailpage&v=F8ID1KJQxB8#t=12 which should tell you the way it is
[19:16:48] <Snert_> utoob is blocked for me.
[19:17:01] <theBear> oh, first two are also spanish, so err, pfft, if you don't understand spanish, or err, and i just noticed the last link wasnt' remotely what you wanna know :)
[19:17:12] <Snert_> I could unblock it but naaa too much trubble to log into Le Wall De Fire.
[19:17:14] * theBear adjusts his resultset
[19:17:39] <Snert_> I'll check the links from home when I get there tonite.
[19:18:14] <Snert_> I guess fgpa boards are getting to be all the rage
[19:18:57] <theBear> mm, i spose if anyone should judge that kinda hting, it's you !
[19:19:37] <Snert_> not me, I just see more and more ads about them
[19:19:47] <theBear> http://www.adultswim.com/videos/harvey-birdman-attorney-at-law/im-not-the-reading-type/ ok.... not youtube, it letting me see things today, so aside from mayb thinkin i'm in spain right now, that lookin good, but it cuts of the answer, it's all just bears jokes
[19:20:03] <theBear> oh now, there' bear and regular philosophy used as humor-fuel
[19:20:09] <Snert_> fpga is too much for me to chew on at the moment
[19:20:25] <theBear> you alraedy smoking or chewing jerkey or something ?
[19:20:30] * theBear smiles
[19:20:53] <Snert_> I bet you have to command line configure an fpga
[19:21:01] <Snert_> and learn a whole new command set.
[19:22:35] <Snert_> kinda looks fun though. Just too bizzee with other stuff atm.
[19:56:18] <theBear> ahh, it was THIS channel
[19:57:49] <Casper> theBear: not it is not!
[20:03:34] <theBear> not your face is not, not waht ?
[20:03:52] <theBear> not fit for public viewing maybe ?:)
[20:27:20] <AndroUser> hello
[21:36:09] <Casper> grrr didn't got time to call the gas shop for co2...
[21:36:13] <Casper> ow well monday..
[22:17:57] <theBear> https://www.youtube.com/watch?v=8XfIJy6Ples ooh, my lastword on snickerdoodles... "Smart Cookies: The Snickerdoodle " ...
[22:23:53] <Casper> ... and a cam in a living room.... ew
