#robotics Logs

Nov 27 2014

06:52 deshipu I just discovered the lua firmware for the ESP8266
06:52 deshipu not micropython, but still a nice language :)
06:52 deshipu I wonder if it's strong enough to run micropython
08:28 Steffanx With the esp8266 ram is probably the issue
08:29 Steffanx 35kB for user stuff iirc.
10:32 Tom_L http://www.electronicproducts.com/Passive_Components/Antennas/Tired_of_reaching_in_his_pockets_for_cash_man_embeds_two_bitcoin_wallets_into_his_hands.aspx
10:32 Tom_L a bit extreme
10:32 Tom_L no pun intended...
10:40 Steffanx Netherlands oh no.
10:40 Tom_L those guys are nuts!
10:40 Tom_L :D
10:42 Steffanx he went totally mad on drugs i guess
10:42 Tom_L he and a few others
11:18 deshipu Steffanx: https://github.com/micropython/micropython/issues/986
11:19 deshipu Steffanx: I don't have a single original thought in my head :)
11:24 Steffanx i thought you didnt have all 80k or ram available for user apps, but i might be wrong
11:32 deshipu if that gets developed, it will be great
12:01 Steffanx oh nice deshipu, it's actually the guy behind upy. Should be done i no time then D:
20:47 rue_more just_corey, oh, your there
20:47 rue_more are you there there, or just there
21:12 Tom_itx where?
21:13 orlock so i got printer kit
21:13 orlock also picked up a sheet of borosilicate glass
21:13 orlock and some kapton tape
21:14 orlock and filament
21:14 Tom_itx which kit?
21:14 orlock prusa i3, lasercut perspex
21:15 Tom_itx should be a nice one
22:41 rue_more 8Khz, 8 bit mono, is 2minutes/meg
22:44 GuShH damn it the casters I got were complete crap
22:44 rue_more they crushed under a mere 2 tonnes?
22:44 GuShH the threaded shafts bent because they're low carbon all-thread, not proper steel.
22:44 GuShH I'll need to replace them with grade 8 1/2" bolts
22:45 GuShH rue_more: http://i.imgur.com/rZDB7wX.jpg
22:45 rue_more ... threaded axles?
22:45 GuShH that white tape is a reminder.
22:45 rue_more usually its not good to bear weight on threads
22:45 GuShH yeah and they were also too short, and I had a bushing inside... they bent anyway
22:45 GuShH the rear ones have grade 8 bolts I added, no problem there.
22:45 GuShH but the spinning / locking ones were crap
22:45 rue_more nice pic with floor that fades off in the distance
22:45 GuShH took them apart, they have roller bearings inside, the spinning ones have thrust bearings also...
22:46 GuShH night time + flood work light and flash
22:46 rue_more yea
22:46 GuShH so I lifted again with the jack and added some scrap wood underneath
22:46 rue_more "your shop is so big that the flash cant see the back wall"
22:46 GuShH I don't trust those casters.
22:46 GuShH lol, garden lathes are the shit now adays.
22:47 GuShH still removing the old paint and grime, sigh
22:47 rue_more you do know those holes are for bolting it down and the footing may not be rated for the torsion...
22:47 GuShH they are for leveling feet, not for bolting down
22:47 GuShH that is a one piece cast iron pedestal... as long as you don't hit it sharply it should be fine :)
22:48 rue_more techinically what IS that thing?
22:48 GuShH that is a turret lathe
22:48 rue_more a lathe, a mill, or a shaper?
22:48 rue_more ah
22:48 GuShH it just has no tooling and no toolposts right now
22:48 GuShH and no handles, so ...
22:48 GuShH they're inside the bag
22:49 rue_more round tool turret... huh
22:49 GuShH hex were not as common
22:49 GuShH it was more costly
22:49 rue_more adjusting bits must have been a bitch
22:49 rue_more its not just square liket he new ones
22:49 GuShH depends on what you were doing
22:49 rue_more oh, thats technically its tailstock
22:50 GuShH I got a tool holder for the tailstock, it holds two hss bits for turning
22:50 GuShH could certainly make or find more of those, some were graduated like a boring head
22:50 GuShH so you get two toolposts on the slide (front and back) and 6 turret positions
22:50 rue_more is that really its gearbox cap?
22:50 GuShH that is the factory stop on the turret
22:51 GuShH it is, but the shaft seems bent, or something fishy
22:51 GuShH that is the only part, aside from that door handle, that is cast aluminum (oh and the top plate is also aluminum)
22:51 GuShH the only part missing is the coolant pump
22:51 rue_more power feed on the toolpost?
22:52 GuShH no those were features for much bigger turret lathes
22:52 GuShH usually hydraulic
22:52 rue_more whats that gear towards us
22:52 GuShH or screw driven, but with copier attachments and fancier/bigger
22:52 GuShH for the slide, the SHCS is where the slide handle goes.
22:52 GuShH you manually feed back and forth, it has depth stops to limit travel
22:53 GuShH I got a much smaller one like this, but in much worse shape and no collet chuck, just a 3 jaw chuck that needs new jaws
22:53 GuShH I wonder if I'll have a use for that
22:53 GuShH this thing has a 1 1/2" spindle bore, the bearings are massive.
22:54 GuShH it just needs some TLC
22:54 GuShH rue_more: you reckon I'll mess up shorty if I try to move it with those casters and no platform?
22:55 GuShH I think I will, in that case the legs are separate castings just bolted down
22:56 rue_more yea
22:56 GuShH sadly I don't have any structural steel left, just solid stock
22:57 rue_more side/side 1/2" flatbar might even it out enough
22:57 GuShH otoh we did slide the heck out of it when we lowered it from the semi
22:57 GuShH I have 1/2 x 1" flat
22:58 rue_more I was thinking more like 2"
22:58 GuShH at that length it bends like heck
22:58 GuShH should be angle plate or square tubing instead, for structural support
22:58 rue_more but it would turn into a stretch compression force when coupled to the base
22:59 GuShH only angle plate around is 1/2" I got left heh, not very useful in this case.
22:59 GuShH but fun for small projects
23:00 rue_more whats the name on it
23:00 rue_more iman?
23:01 GuShH IMAM, haven't been able to source data ... but it is very similar to the DM-32 and also the "APEKA" which was a local brand also
23:01 GuShH but all clones from some other lathe most likely
23:01 GuShH probably a bit newer since the door is stamped steel, they used to be cast iron
23:02 GuShH like on the smaller turret lathe I have, it is a cast iron door ... nuts
23:02 GuShH it weighs A LOT.
23:02 GuShH I have most of the bar feeder for this bigger one though, just not sure how to rig it up
23:02 GuShH I think it ism eant to be used with a weight, for gravity feeding
23:03 GuShH some lathes I've seen use a series of pulleys a line and a weight to push the rod in
23:03 GuShH then usually a lever to engage, or it could always be pushing
23:04 GuShH Tom_itx might know better about feeders
23:05 GuShH http://upload.wikimedia.org/wikipedia/commons/1/14/%22He_Says_it_should_have_been_over_long_ago_but_they're_building_so_dammed_many_Turret_Lathes%22_-_NARA_-_534383.jpg
23:05 GuShH lmao
23:07 GuShH anyway rue_more that is the lathe I wanted, the others were included as part of the deal but my main focus is on this one right now, I need it.
23:10 rue_more apeka has a smaller headbox
23:10 GuShH they came in 2-3 sizes
23:10 GuShH 25mm, something smaller and something bigger (don't remember)
23:10 GuShH castings were different based on year also
23:11 rue_more http://venta.brick7.com.ar/media/ar/332101_332200/332128_7ad1fdb4155b8e33.jpg
23:11 rue_more hmmm
23:11 GuShH yeah that is much smaller headstock
23:11 GuShH but similar rack/pinion config
23:11 rue_more so the cutters are just on a rack
23:11 GuShH the hi/lo lever is on the bottom in that one
23:11 rue_more that must chatter
23:11 GuShH no
23:11 GuShH dovetail
23:11 GuShH with gibs
23:11 GuShH you feed and feel by hand with the lever
23:12 GuShH haha the coolant setup on that thing is hilarious
23:12 GuShH piece of hose and wire
23:12 GuShH very poorly restored
23:12 rue_more is the turret on yours a taper?
23:12 rue_more I guess not eh?
23:12 GuShH they are not tapered, just 1" holes
23:13 rue_more looks like the chuck is split on that
23:13 GuShH they would typically use whatever they could find
23:13 GuShH I got a homemade die holder on mine...
23:13 GuShH looks like crap
23:13 rue_more it looks like its a cam lock, on that image, its off to the side
23:14 rue_more its not a good palint job
23:14 GuShH nope they just slapped it on top of the rust
23:14 GuShH without taking it apart
23:14 GuShH or masking
23:14 rue_more yea
23:14 GuShH it has a very strange mod on the slide
23:14 GuShH a piece of flat bar with two countersunk shcs
23:15 GuShH they probably broke the t slot on that side and decided to mill the whole portion off
23:15 GuShH I'm glad these haven't been butchered as such
23:15 GuShH but I know it had a hard life machining low carbon steels
23:16 GuShH it even came with the swarf included lol
23:16 GuShH it was most likely used to make the blanks for the plumb bobs out of solid round stock
23:16 GuShH put the top chamfer, part.
23:16 GuShH the chamfering tool is still mounted
23:18 rue_more there isn't a pattent number on it is there?
23:18 rue_more just an off thought
23:18 GuShH not sure, I've seen a serial number only
23:18 GuShH the plate has the speed info
23:18 GuShH I think I'll need to refurb the "clutch" plates
23:18 rue_more serial number, thats cool
23:19 GuShH they're tapered and I believe they were originally coated with some friction material
23:19 rue_more 100's 1000's?
23:19 GuShH 87xxxx I think
23:19 rue_more wow
23:19 rue_more there must be an image around with one
23:19 GuShH I was thinking the first two numbers were the year, but I doubt it was made in 1987, this thing is older
23:20 rue_more 1887
23:20 GuShH lol
23:20 GuShH no, that seems too old
23:20 rue_more http://docsmachine.com/2014/greenlathe2.jpg
23:20 rue_more grrrrr
23:20 GuShH they were made up 'til the 40-50s here
23:21 GuShH just to show some progress on the small mill, some before and after pics http://imgur.com/a/gB0ch
23:22 rue_more sweet
23:22 GuShH first coat of "ice grey" after priming
23:22 GuShH hard to tell, looks white there but it isn't
23:22 GuShH I'm quite positive it's going to be a lot more rigid than the imports
23:23 GuShH I for one can't move that part unless I rock it back and forth
23:23 GuShH but it will chatter with steel, that's for sure. for rigidity you want a proper knee.
23:23 GuShH also you can see the busted leadscrew on that before pic, I need to address it
23:24 GuShH left hand thread.... I need a reverse for the lathe or I'll have to place an order in some shop
23:24 rue_more what state are you in?
23:24 GuShH in the state of shame, argentina.
23:24 GuShH that constitutes living anywhere in argentina.
23:25 rue_more theres an argentina in australla?
23:25 ShH is not in Austra
23:25 rue_more damn, I'm getting bad with my geology
23:25 GuShH that is RifRaf
23:25 rue_more well stop moving around so much so I can remember
23:25 RifRaf hello
23:25 GuShH oh you can see on the before pic, the slotting head
23:26 GuShH I only moved 40KM from where I used to live
23:26 rue_more RifRaf, I made a 1mm nozzel,
23:26 rue_more I figure it'll help me get going
23:26 RifRaf rue_more, cool, so you having another go?
23:26 GuShH you can get surprisingly good prints with 1mm nozzle
23:26 GuShH and, fast
23:26 orlock hmm i dont even know what size nozzle i have
23:26 rue_more not yet, I'm still pissed off at it
23:26 lock looks at bags of
23:27 rue_more orlock, you got the kit!!!
23:27 RifRaf yep, i'd be keen to see the results, should be able to print faster, as long as the extruder can keep up
23:27 orlock yeah
23:27 rue_more cool stuff, take a pic!
23:27 orlock i'll lay it out and take pics tonight if you want
23:27 orlock havent started assembly
23:27 rue_more RifRaf, I'll make smaller ones as things work
23:27 rue_more orlock, totally!
23:27 RifRaf i wouldn't start till you know what you are trying to do
23:27 RifRaf assemble the y carriage and get that right first
23:27 orlock extras i bought: kaptan tape, (never bought any before), borosilicate glass sheet, purple filament.
23:28 RifRaf orlock, did they give you a nice y carriage plate?
23:28 orlock its reasonably thick perspex
23:28 orlock laser cut
23:28 RifRaf you better get one from me then
23:28 rue_more http://www.equipmatching.com/uploads/images/ood16jn8n9.jpg "no, no, when I said I wanted a rotary table for the mill, I didn't mean for the mill to sit on, I meant one to put on the mill!"
23:28 RifRaf perspex ain't gonna work
23:29 RifRaf unless you not gonna have a heated bed
23:29 RifRaf which is silly these days
23:29 GuShH rue_more: they have one of those on auction here
23:29 GuShH shop closed down they need to get rid of all the crap, real cheap heavy machinery
23:29 GuShH no space, no use for it.
23:29 rue_more damn
23:30 GuShH some of those machines date from the war era
23:30 rue_more go out in the night and wax/oil it up so it dosn't rust out while sitting outside
23:30 GuShH they would turn the actual tank turrets, etc.
23:30 GuShH haha
23:30 GuShH rue_more: it needs a space specifically built for it
23:30 GuShH most of the machine is under floor level
23:31 GuShH they also had smaller self contained units, still big as a car
23:32 rue_more http://1.bp.blogspot.com/-vxQwzQYx0iA/T6spbTMBeYI/AAAAAAAAAEg/0i_xNqo1nJ0/s1600/nozzle_comparison.jpg
23:32 rue_more RifRaf, ^^ dosnt' the tip have to be flat?
23:33 GuShH earlier jhead nozzles heh
23:33 RifRaf i like the flat tip, but have seen pointy ones in use, like airbrush nozzles
23:33 rue_more dosnt' the tip of the nozzel squish it down a bit?
23:34 RifRaf yep
23:34 rue_more hmm
23:34 RifRaf i also saw the ait brush nozzle ripping up print after print
23:34 rue_more !?
23:34 GuShH lifting the part?
23:34 RifRaf kept getting caught on overhangs that tilt up a little
23:34 rue_more much larger than 1mm no?
23:35 GuShH no
23:35 rue_more ah
23:35 GuShH my airbrush is tiny, forgot size
23:35 GuShH 0.25 or so
23:35 GuShH maybe a bit smaller, since my touch up gun is 0.5
23:35 rue_more mm!?
23:35 RifRaf having horrible time with overhangs at momnet, need to get heated chamber again
23:35 rue_more smallest I have is #80 and thats .34mm
23:35 GuShH I mean airbrush nozzle, from an actual airbrush I sometimes use
23:35 GuShH only got one nozzle for it though
23:36 GuShH always scared I'll break the needle
23:36 RifRaf GuShH, yeah saw a printer at the brisbane hackerspace using one, was ok with simple prints
23:36 rue_more http://media-cache-ec0.pinimg.com/236x/f7/bb/5d/f7bb5d205dae13b4bdbf237ecf331f6d.jpg "you need a belt HOW LONG!?"
23:36 GuShH lol
23:36 GuShH wtf
23:37 rue_more its a surface grinder!
23:37 rue_more I didn't notice that
23:37 GuShH looked like a homemade belt sander
23:37 rue_more hah
23:37 GuShH on a size 0 mill
23:37 rue_more yea
23:37 GuShH hahaha
23:37 rue_more oh thats big
23:37 rue_more bigger than it looks
23:37 GuShH well the 0 machines are like a small fridge sure
23:38 GuShH the 1s are like a regular fridge
23:38 rue_more look at the 5 gal pail int eh background
23:38 rue_more its only up to the bottom of the pan
23:38 rue_more huh
23:39 rue_more http://www.sheffieldhistory.co.uk/forums/uploads/monthly_03_2010/post-188-126901995221.jpg cool 4 independent toolposts
23:39 rue_more "here everyone take a section"
23:39 RifRaf now thats a lathe
23:39 rue_more I wonder how much concrete is under that thing
23:40 GuShH heh
23:40 GuShH well it has a big footprint
23:40 GuShH rue_more: they have one of those for sale also, but no bed it was meant to run on custom railroad tracks
23:40 rue_more notice all the wood accesses by the machines?
23:41 GuShH looked like it was bigger than that
23:41 GuShH about 100k usd also
23:41 GuShH sitting outside, rotting.
23:41 rue_more I bet that image is taken from the crane for loading it
23:41 GuShH ohh price went down, a lot.
23:41 rue_more go oil and wax it
23:41 rue_more you might need it one day
23:42 rue_more turn down a car or something...
23:42 GuShH here ya go http://articulo.mercadolibre.com.ar/MLA-532808331-espectacular-torno--_JM it is now about 30k usd
23:42 GuShH if i had that money to throw around you think I would buy it????
23:42 rue_more hmm its not been under cover for a long time
23:43 rue_more ask to see it started up before you buy it
23:43 GuShH hahahaha
23:43 GuShH just get them to run it, then casually walk away "not interested anymore, the paint is chipped"
23:43 rue_more :)
23:43 GuShH the chuck is 4.5 meters in diameter
23:44 rue_more must be an import, its metric
23:44 rue_more :)
23:44 rue_more did they put it out or take away the building?
23:44 GuShH he has some 2500Kva transformers also
23:44 GuShH no idea.
23:44 rue_more I wonder what they made with it
23:45 GuShH who knows, but that is the biggest lathe on sale nearby
23:45 GuShH it was about 100k a few years ago when I first saw the ad
23:46 rue_more looks like there are no buildings on site that ever housed it
23:47 GuShH who knows why it ended up there
23:48 GuShH always makes me sad when machinery ends up rotting outside
23:48 rue_more does it come with a 3 jaw?
23:48 GuShH LOL
23:48 rue_more :)
23:48 GuShH which is why I went ahead and bought a 2x8 meter tarp yesterday
23:49 rue_more get the good one
23:49 rue_more tie it down
23:49 rue_more my poor bench grinder has been under a tent for like 3 yeras now
23:49 GuShH kinda silly to put a bunch of hours on the lathes and leave them uncovered otherwise
23:49 rue_more its doing ok, it could be better
23:49 GuShH yeah well parts of the mill are also outside, wrapped in plastic
23:49 rue_more well wax up the ways
23:50 GuShH I'll be making some space soon
23:50 ShH is getting rid of his wood lathe most likely and the safe that was left behind when he move
23:50 GuShH takes up the space of a knee mill, so it has to go.
23:50 GuShH wish pit style toolboxes were cheaper here
23:54 GuShH holy shit http://mla-s1-p.mlstatic.com/liquido-lote-de-maquinas-herramientas-20144-MLA20185107976_102014-F.jpg
23:54 GuShH number 6 knee mill
23:56 GuShH those things are scary big
23:58 rue_bed cats pulling out the laptop power cable again
23:58 rue_bed orlock, I didn't miss you posting images did I?