#robotics Logs

Apr 29 2014

00:21 rue_house the local place wants $300 for a tablet with hdmi
00:21 rue_house I'm looking at one from china for $50, and I'm hesitant?
00:32 rue_house I have to weigh my objectives
00:33 rue_house "what do you call this meal?" "its called kinda fried hashbrows with fried forn and random lump of cheese" "that explains why its so bad!"
00:34 GargantuaSauce you forgot to involve bacon
00:34 rue_house that would turn it around
00:51 rue_bed I"m gonna mod my kinematics test app to realtime control the bot
00:52 GargantuaSauce goood
01:06 blockh34d rue_bed: throw some eggs in there and you got a fine plate of slop
01:06 ockh34d likes it with ranch and hots
01:06 blockh34d i never could think of a name for it either... it's truly a very ugly dish
02:52 FreezingCold /j ##sip
02:52 FreezingCold Oops
15:42 GuShH_ MrCurious: tried out the electrolysis on the bolts, it strips the zinc coating right off... nice to know
15:42 GuShH_ no nasty acids
15:43 GuShH_ of course the suspended crap in the electrolyte might be a good hazmat candidate.
15:43 MrCurious sweet
15:43 GuShH_ of course, only an idiot would want to do this
15:43 ShH_ points at
15:43 MrCurious cant you up the voltage and deposit the ions on the other pole?
15:44 MrCurious perfect for that summer get-away-rental you have
15:44 GuShH_ most of the stuff is stuck to the anode, but if you shake it everything just floats up
15:44 MrCurious might i suggest evaporation
15:44 GuShH_ it's not a rental... I should be renting it but I can't afford to furnish it from scratch, it's all empty now
15:44 GuShH_ don't remind me.
15:44 MrCurious doesnt it self empty when you furnish it :D
15:44 GuShH_ you see this, it's my finger.
15:44 MrCurious oh boy.. i just saw the mood-swing
15:45 MrCurious yup
15:45 MrCurious i knew you were thinking of a finger, and astrally projecting the image
15:45 GuShH_ I hope it never happens to you or anyone you know, it's not nice.
15:45 MrCurious you should know that image covered damn near 1/2 the west coast
15:45 GuShH_ I still have urges to do bad things if I ever find them.
15:45 GuShH_ everything had emotional value there.
15:47 GuShH_ now if only I could find a nice method to strip the black oxide off steel...
15:47 GuShH_ without using acids, I have actually tried HCL and it etched away way too much material, I need a pickling or "cleaning" solution
15:47 GuShH_ something like a desmut for aluminum
15:47 GuShH_ why didn't I pay -enough- attention in chemistry...
15:52 GuShH_ asked in chemistry, they suggest phosphoric acid...
15:52 MrCurious whats it an oxide of
15:53 Curious mumbles R
15:53 GuShH_ I already read people were using coca cola as a source of phosphoric acid, but it's too dilute for me
15:53 MrCurious cant you buy h2po4 in stores
15:53 MrCurious or perhaps muriatic acid
15:53 GuShH_ already said I tried HCL
15:53 MrCurious what molarity
15:54 GuShH_ not good, plus it etches the surface away in a non uniform way
15:54 MrCurious if a drip of water fails to explode when added to the acid, the acid is too weak
15:54 GuShH_ MrCurious: sold for pool supplies, dirty stuff, unknown molarity.
15:54 GuShH_ industrial bi-product...
15:54 GuShH_ as for the phosphoric acid, never seen it at any store.
15:55 GuShH_ maybe online.
15:55 GuShH_ yerp... 10 bucks a liter, online.
15:55 GuShH_ 85%
15:58 GuShH_ oh nice, they have all sorts of chemical goodies.
16:12 GuShH_ bah they don't ship
16:31 GuShH_ hrmm I'm not sure it's leaving bare steel now
16:32 GuShH_ color is off, seems like polished zinc
20:22 blockh34d i'm ready to start ripping out some air muscles now
20:23 blockh34d got enough supplies i think
20:23 blockh34d i need a good material for a strong, light exoskeleton thats readily available to most people
20:23 blockh34d i am thinking about bundles of those fiberglass rods that people use to mark the edges of their driveways
20:24 blockh34d the bright orange kind etc, about 1/4" aruond... bundles of those for the spans of an exoskeleton that would need to be straight and rigid
20:25 blockh34d any other suggestedmaterials?
20:30 GargantuaSauce CF tubing is getting surprisingly cheap
20:30 GargantuaSauce but that is probably best saved for version 2
20:31 blockh34d yes maybe, but sounds promising
20:31 blockh34d can it vary in radius?
20:31 blockh34d the way metal thread tubing can
20:31 GargantuaSauce not that i know of
20:31 GargantuaSauce i don't think it can be reworked or bent at all
20:31 blockh34d ie if you compact the length, the radius expands, but if you pull it long, it constricts the radius
20:31 blockh34d oh thats probably not very good for air muscles then
20:32 GargantuaSauce i meant for the frame
20:32 blockh34d ohhhh right
20:32 blockh34d yes of course yah that could be very nice
20:32 blockh34d i havent worked with carbon fiber yet but i hear its crazy strong
23:28 rue_house ok, its the pcnet32 card I have to replace
23:33 blockh34d think somone could launch a (special) quadro like a frisbee?
23:58 Tom_itx yay! finally got my file working like it's supposed to
23:59 Tom_itx one stupid error was a '"' in a single record of an ascii delimited file