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[06:07:34] <SpeedEvil> https://www.amazon.com/GoatMan-Took-Holiday-Being-Human/dp/1616894059?ie=UTF8&*Version*=1&*entries*=0
[06:07:47] <SpeedEvil> Luckily, a research grant offers the perfect out: a chance to take a holiday from the complications of being human—by transforming himself into a goat. What ensues is a hilarious and surreal journey through engineering, design, and psychology,
[06:10:25] <Triffid_Hunter> SpeedEvil: is this the backstory for goat simulator?
[07:40:45] <veverak> nah
[07:40:58] <veverak> my bosses 3d printer (taken care of by me) works better than mine
[07:40:59] <veverak> :/
[07:53:15] <jhylands> veverak, what kind are they both?
[07:56:10] <veverak> i3
[07:56:30] <veverak> but his was completely rebuilded last time
[07:56:34] <veverak> that's it propably
[07:56:48] <veverak> I upgraded my for two years, but never complete rebuild
[08:07:23] <jhylands> I have a Raise3D N1, which is a fantastic printer, but its a little more expensive
[08:09:01] <jhylands> well, its about double the price of an i3
[08:11:38] <veverak> doesn't seem hack-friendly :)
[08:11:47] <veverak> jhylands: well, my i3 is double the price of standart i3 now
[08:11:48] <veverak> propably
[08:11:50] <veverak> :)
[08:13:37] <jhylands> the N1 is very open source and hack friendly, apparently
[08:13:43] <jhylands> although I haven't had to do much to it
[08:19:26] <deshipu> I wonder how hard it would be to make schnitzel making robot
[08:20:22] <deshipu> probably just a short production line with a press, egg dispenser, breadcrumbs dispenser and an oven
[08:25:47] <mrdata> deshipu, do you need to make a lot of schnitzel?
[08:27:36] <mrdata> if by the thousand, then i imagine a schnitzel making robot could be effective
[08:30:24] <deshipu> I just made 3 and wondered
[08:32:03] <mrdata> at quantity 3, it's a novelty. but you could take it to shows and make hundreds
[08:35:54] <deshipu> would be nice to have an appliance that would spit schnitzels at a press of a button
[08:36:12] <deshipu> although I suppose my diet would be affected
[08:38:52] <veverak> :)
[15:26:33] <fkghfgh> So I have a laptop cable with a brick that says INPUT 100-240V~, 50-60Hz, 1.2A. The cable has a wall-to-brick cable rated at 3A/250V but I don't have the correct adapter for it, is it fine to use a cable rated at 2.5A 250V~?
[15:50:00] <SpeedEvil> adaptor?
[15:50:05] <deshipu> fkghfgh: and what, pray tell, does that have to do with robotics?
[15:50:18] <SpeedEvil> The input is only 1.2A, andy connector that can do over 1.2A
[15:50:21] <SpeedEvil> under
[15:50:24] <SpeedEvil> over
[15:50:26] <fkghfgh> k
[15:50:29] <SpeedEvil> equal or over 1.2A
[19:39:45] <rue_house> well, sounds like the postal system will be out for a few weeks
[20:15:13] <ace4016> ?
[20:17:23] <codepython777> does anyone have a good and reliable source for a lifepo4?
[20:22:23] <Jak_o_Shadows> hey, rue, do you have a good example of a priority queue in C, for a micro-controller? (still looking at the little stm32 ones). I could write it myself, but it seems like a bit of wasted effort
[20:22:34] <Jak_o_Shadows> Similar thing for matrix maths (throuhg I know you don't like matricies)
[20:24:24] <codepython777> Jak_o_Shadows: why not use c++?
[20:25:32] <Jak_o_Shadows> convention for the larger project
[20:26:14] <codepython777> Jak_o_Shadows: there are nice pq implementations in C++
[20:26:22] <codepython777> of course you can wrap them in C
[20:27:10] <Jak_o_Shadows> Yeah. But everything else in the larger project is straight C, so I shouldn't disturb that too much
[20:31:02] <codepython777> true
[20:31:06] <codepython777> what project are you wroking on?
[20:35:10] <Jak_o_Shadows> Not sure I can say, there's an IP agreement in there somewhere
[20:38:33] <codepython777> good luck :)
[20:38:38] <codepython777> Hope its something exciting
[20:41:14] <codepython777> Jak_o_Shadows: do you know of any good sources for lifepo4 batteries?
[20:41:25] <Jak_o_Shadows> Oh yeah, it's interesting enough
[20:41:27] <Jak_o_Shadows> sorry, nup
[20:41:46] <codepython777> do you guys use battery? what kind? (if its not under ip control that is)
[21:13:05] <anniepoo> depends on project, but for anything mobile, yes
[21:13:26] <codepython777> anniepoo: which battery? I'm looking for a good lifepo4 source
[21:13:29] <anniepoo> solar cells produce very little power
[21:13:43] <anniepoo> what's the weight of your robot, and what's it do?
[21:14:14] <codepython777> I'm just trying to design one from scratch. 20kg roughly - trying to do it with 12V 10ah - looking for a good lifepo4
[21:14:42] <anniepoo> like, if you're making a Tesla car into an autonomous rover, you're going to need a heftier battery than some ultraminiature
[21:15:01] <anniepoo> hmm....
[21:16:04] <anniepoo> so, lets figure it out
[21:16:17] <anniepoo> a, what kind of surface are you on?
[21:16:31] <anniepoo> (b, how far are you going?
[21:16:43] <codepython777> anniepoo: I want to start with a 12v 10ah battery :)
[21:16:53] <codepython777> do you hve a suggestion on where i can source a quality one?
[21:17:01] <codepython777> anniepoo: or perhaps you know how to build one from 18650s?
[21:17:39] <orlock> You need a fancy little controller to build your own dont you?
[21:17:45] <anniepoo> ok
[21:18:22] <codepython777> orlock: controller - you mean bms?
[21:18:31] <anniepoo> you can make a battery from a lemon and a couple metal strips 8cD, but I think his question is 'where can I source a 10ah 12v battery'
[21:18:37] <orlock> yes
[21:18:49] <codepython777> orlock: do you have a pointer to a good 4 or 6 cell one?
[21:19:19] <anniepoo> If you live near a discount tool place, you can often buy a cordless drill and use the battery from it cheaper than you can buy a battery
[21:19:39] <anniepoo> otherwise, ebay or one of the china import places like ali express are good
[21:20:05] <anniepoo> no, maybe somebody else does
[21:21:46] <codepython777> anniepoo: the cordless drill batteries (18V ones) - do they come in 8000mah? are they lifepo4?
[21:23:03] <anniepoo> no, but you could use 3 of them
[21:23:23] <anniepoo> spend some quality time on amazon
[21:23:34] <codepython777> are they lifepo4?
[21:23:42] <anniepoo> I don't know
[21:23:59] <codepython777> As far as i know they are not
[21:24:06] <anniepoo> and you could answer these questions for yourself as well as asking me
[21:24:22] <anniepoo> I've typed 'cordless tool battery' into amazon.com
[21:25:01] <anniepoo> I'm looking at a batch of them, and now know that most are 'lithium ion' and vary from 1.5 to 3 AH
[21:25:16] <codepython777> li-ion is not the same as lifepo4, right?
[21:25:54] <anniepoo> lithium ion is a more general class than lifepo4
[21:26:11] <anniepoo> 8cD I bet wikipedia has an article on lithium batteries!
[21:26:20] <codepython777> anniepoo: if you add lifepo4 to your search, it returns nothing.
[21:27:06] <anniepoo> https://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery
[21:27:19] <anniepoo> 8cD they're also called LFP batteries
[21:27:29] <anniepoo> why do you want this particular chemistry?
[21:27:54] <codepython777> dense , safer, I currently use lipo - want to migrate
[21:28:15] <anniepoo> 8cD bet google will come up with some suppliers
[21:40:52] <cyberdelic> codepython777:
http://www.pingbattery.com/
[21:41:09] <cyberdelic> used them a few times. dunno if they come cheaper or what but couldn't really find much with searching
[21:42:37] <codepython777> cyberdelic: thanks
[21:43:01] <codepython777> cyberdelic: they start at 24v :(
[21:43:32] <cyberdelic> you could always take it apart and make your own
[21:43:38] <cyberdelic> or order one custom
[21:43:41] <cyberdelic> they have great service
[21:44:02] <codepython777> I'll call them tomorrow
[21:44:17] <codepython777> cyberdelic: where are they located?
[21:44:32] <cyberdelic> shanghai
[21:44:45] <cyberdelic> which is good as they are big mofos and china can dropship fast for fk all money
[21:45:09] <codepython777> their quality control might be a problem
[21:45:32] <cyberdelic> nah I have made about 30 orders from them. never had an issue and the batts are great
[21:45:58] <cyberdelic> couple of minor issues with the early BMSs but they have fixed them in recent times
[21:46:29] <codepython777> cyberdelic: what are you using them for?
[21:46:54] <cyberdelic> e-bikes and caravan power
[21:47:05] <cyberdelic> here you go, they make them in all sorts of voltages -
http://www.pingbattery.com/custom-lifepo4-lithium-batteries/
[21:47:24] <codepython777> nice!
[21:47:26] <codepython777> Need to get in touch
[21:47:32] <cyberdelic> no affiliation with them btw, just happy with their service
[21:47:42] <cyberdelic> wish the batts had bigger C ratings
[21:48:06] <codepython777> yes, that could be an issue for me
[21:48:13] <codepython777> But I could live with 30A 12v 10ah
[21:49:42] <codepython777> what are you using yours for?
[21:50:29] <codepython777> cyberdelic: what exact battery are you using?
[21:53:03] <cyberdelic> i have a 48v 30ah that I put in a friend's electric motorbike conversion, two 24v 15ah batts in my dad's caravan and have supplied them to a few friends for projects here and there, as well as arranging a sale of a stack to some blokes from the hunter electric vehicle festival
[21:53:42] <orlock> hunter electric vehicle festival?
[21:53:47] <orlock> hunter valley?
[21:53:59] <cyberdelic> yup, i used to live in newcastle til late last year
[21:54:09] <orlock> ahh
[21:54:23] <orlock> both parents families are from maitland
[21:54:49] <orlock> used to go up there every christmas
[21:55:02] <orlock> were there in '89
[21:55:21] <cyberdelic> electric motorbikes are a popular conversion, thinking of doing one myself
[21:56:34] <orlock> i'd love to convert my brumby to electric one day
[21:58:25] <codepython777> cyberdelic: their charging system, can they charge with just one +ve and one -ve?
[21:58:29] <codepython777> or they need multiple contact points?
[22:01:19] <anonnumberanon> i love it when rue_house makes fun of ji-ji-jitter...
[22:03:21] <codepython777> cyberdelic: how did you hear about these guys?
[22:03:30] <codepython777> cyberdelic: have you looked at a123?
[22:05:20] <codepython777> cyberdelic: any other such battery companies i should be looking into?
[22:13:22] <codepython777> http://www.batterytender.com/btl14a240cnt.jpg - this battery is really 4Ah, right?
[22:13:43] <rue_house> Jak_o_Shadows, what kinda queue
[22:13:50] <rue_house> task or data?
[22:18:59] <Jak_o_Shadows> data
[22:39:48] <cyberdelic> codepython777: they have a battery management system with built in balancer, so just + and -. they come with a charger
[22:42:08] <codepython777> cyberdelic: did you ever look into a123?
[22:51:42] <cyberdelic> codepython777: yeah, they seem more oriented towards selling a complete drop-in product rather than 'just batteries' so never really looked into them
[22:52:02] <cyberdelic> not to mention no prices on the website so they're probably really expensive
[22:53:06] <codepython777> cyberdelic: how hard is it to make one's own?
[22:53:25] <codepython777> I'm looking to get 12v 10ah - preferably using a 4 cell or 6 cell config
[22:53:58] <cyberdelic> never done it man, i'd contact ping first and just get a price
[22:54:12] <cyberdelic> they make them all to order so you might find it's no different
[22:54:44] <codepython777> cyberdelic:
https://www.amazon.com/Bioenno-Power-12Ah-Battery-BLF-1212W/dp/B01DOVDV9S - any thoughts on this one?
[22:56:09] <cyberdelic> wouldn't know man, could be good
[22:56:27] <codepython777> cyberdelic: what do you think the same thing will cost from pingbattery?
