#linuxcnc | Logs for 2015-10-13

[00:39:01] <Contract_Pilot> Got the tracking for my 20 L# means coming from china. Ohhh no!! 2-3weeks now hahah.
[00:53:04] <Praesmeodymium> I just got charged for motors I ordered a wek ago from newegg wionder what will show up
[00:58:09] <Contract_Pilot> Yea, this was for the 20 i did last week.
[00:58:28] <Contract_Pilot> Tracking is showing up as a letter?
[00:58:50] <Praesmeodymium> well I bought 5 from the same 76oz/in description you got the 396? oz/in motors from
[00:59:27] <Praesmeodymium> I havent even gotten tracking yet just a message they took my oney
[00:59:30] <Contract_Pilot> they shipped my replacement 48V PSU Priority mail.
[01:00:41] <Contract_Pilot> Log in to new egg account order history should be under order number if they took the money
[01:01:02] <Contract_Pilot> should show shipped and you should have a tracking number.
[01:01:38] <Contract_Pilot> on the Scratched up driver and motor with damage they offering refund as they are out of stock.
[01:01:44] <Praesmeodymium> oh yep shenzhn china
[01:02:05] <Contract_Pilot> Yea, no telling what we will get.
[01:02:49] <Contract_Pilot> China track best info http://track.trackingmore.com/lesotho-post
[01:04:42] <Contract_Pilot> SHENZHEN EMS, CHINA so they may go EMS wich is not to slow.
[01:05:54] <Contract_Pilot> Unless customs want to charge for Duty then we are screwed/
[01:06:24] <Praesmeodymium> under 200$ I think
[01:07:34] <Praesmeodymium> the got my laser cutter through customs somehow, said they were shipping from kentucky or something I think they meant the chinese equivalent
[01:08:04] <Contract_Pilot> Yea, not sure what we will get if coming from china.
[01:08:36] <Contract_Pilot> But Dragon Marts is pretty good.
[01:10:06] <Contract_Pilot> I need to e-mail them and request weight.
[01:10:29] <Contract_Pilot> The weight will let us know.
[01:11:45] <Praesmeodymium> I should reall sell mine anyway or I am gonne keep trying to build an aluminum cutting something for under 400$
[01:14:39] <Contract_Pilot> for the weight should be about 4.3 lbs ea for the larger ones 2.1 for the smalled ones
[02:12:59] <Deejay> moin
[04:37:35] <malcom2073> Hah, my newegg cheap stepper finally shipped, it says 5-7 days shipping, but the tracking number is a china post number, so we'll see
[04:41:38] <XXCoder> nice
[04:44:41] <XXCoder> malcom2073: forgot what you was working on?
[05:01:40] <XXCoder> Jymmm: found even cheaper http://www.amazon.com/gp/product/B013WFCX6I/ref=s9_simh_gw_p147_d0_i2?pf_rd_m=ATVPDKIKX0DER
[05:01:43] <XXCoder> no case though
[05:12:28] <malcom2073> XXCoder: I have a small router I'ma put them on, but really I just got them cause they're such a good deal
[05:12:46] <XXCoder> nice
[05:13:06] <XXCoder> the $8 driver and very thin nema23 right?
[05:13:21] <malcom2073> Yeah
[05:14:02] <XXCoder> honestly that nema23 may actually be weaker than mine lol but then whatever eh
[05:23:52] <malcom2073> I'm unsure the size, the oz/inch listed is way below what any nema 23 would be, so I think it's mislabeled
[05:37:51] <jthornton> morning
[05:37:58] <XXCoder> hey
[05:38:17] <XXCoder> malcom2073: as long as driver is rated to drive ahatever you want it to drive
[05:38:34] <XXCoder> the word drive drives me crazy. ;)
[05:39:41] <malcom2073> Well I'm having it drive the steppers it comes with heh
[05:39:41] <archivist> in the old days drives sometimes were known as amplifiers
[05:39:52] <XXCoder> lol ok
[05:41:38] <archivist> didnt sound right on my hifi though :)
[05:41:59] <XXCoder> interesting
[05:43:03] <archivist> joking about the hifi part
[05:43:26] <archivist> but servo drives are still known as amplifiers http://www.ebay.co.uk/itm/Servo-Amplifier-Mitsubishi-MR-J3-60BS-MRJ360BS-/201446322296
[06:38:50] <Jymmm> XXCoder: Says mSATA vie PCIe, can that be used to replace a SATA HDD in a netbook?
[06:39:02] <XXCoder> unknown unfortunately
[06:42:14] <XXCoder> maybe google knows'
[06:49:04] <Jymmm> The one on the left is sata ssd, pin count is not the same http://imgur.com/6h6SQFj
[06:49:23] <XXCoder> oh well
[06:49:35] <XXCoder> too bad since it is pretty cheap for 32 gb
[06:49:46] <Jymmm> and now we know why
[06:49:57] <Jymmm> But...
[06:50:12] <Jymmm> Some mobo have mPCIe slots
[06:52:14] <XXCoder> cool
[06:52:46] <TurBoss> Hi , in stepconf the last page of the wizard "Spindle", whatd does PDM mode means?
[06:52:47] <TurBoss> thx
[06:53:05] <XXCoder> periodic destroy mode
[06:53:05] <TurBoss> I'm upgrading to 2.7
[06:53:08] <XXCoder> kidding
[06:53:10] <TurBoss> :D
[06:55:00] <TurBoss> ok the manual says somenting :)
[06:55:18] <XXCoder> night
[07:10:07] <Jymmm> jthornton: http://www.food.com/recipe/crispy-ginger-beef-107072
[07:12:27] <jthornton> that looks good
[07:12:53] <Jymmm> jthornton: They have a LOT of nice recipes up there
[07:13:11] <jthornton> that site sucks with popups and crap
[07:13:31] <Jymmm> I have ABP installed, I don't see any of that
[07:16:07] <jthornton> I just avoid sites like that
[07:17:35] <Jymmm> Well, ABP also keeps my bandwidth in check and no unnecessary in-the-background 3rd party up/downloads too
[07:18:59] <jdh> alt.binaries.porn?
[07:20:26] <Jymmm> jthornton: No, we WANT those! more like adobetm.com, douleclick,net, *adserver.blah, etc
[07:20:31] <Jymmm> err jdh
[07:22:53] <Jymmm> jdh: ||googleadservices.com^ = 8K hits
[07:23:29] <Jymmm> jdh: ||google-analytics.com^ = 30K hits
[07:24:52] <Jymmm> jthornton: http://low-cholesterol.food.com/recipe/sweet-potato-black-bean-enchiladas-292128
[07:25:07] <jthornton> don't like beans
[07:25:27] <Jymmm> any beans?
[07:25:35] <jdh> sub bacon for the beans
[07:25:36] <Jymmm> I dont care for black beans myself
[07:26:37] <Jymmm> jdh: low fat bacon, right?
[07:28:30] <Jymmm> Ginger recipes at the bottom... http://www.food.com/about/ginger-166
[08:32:00] <jthornton> ssi, I got it working YEA... indexed by the entity I picked then sorted in order http://pastebin.com/hdz82LFc
[08:32:17] <jthornton> next to generate the G code from the entities
[08:34:13] <jthornton> all in 161 lines of code
[08:34:38] <cradek> sweet!
[08:34:52] <jthornton> yea, I'm stoked I got that far
[08:35:27] <jthornton> blinding fast too
[08:47:09] <MrSunshine> hmm how the heck would i check the tilt of my spindle ... to many variables for my little brain :(
[08:48:15] <MrSunshine> i guess i need an acurate square to check squareness up and down .. then check for traming .... hmm
[08:49:27] <MrSunshine> hmm i wonder how square the toolholder on my lathe is ... probably a heck of alot squarer then any square i have :P
[09:02:53] <MrSunshine> this constant dilema of trying to make machines work .. =)
[09:03:25] <MrSunshine> got a bad tilt in the spindle . .when i plane the table its more saw tooth formed than anything else :/
[09:06:47] <archivist> measure the height of the saw tooth pk to pk and diameter of cut, tells you the angle of the spindle
[09:07:10] <archivist> use a tramming tool (dti in the spindle)
[09:09:43] <archivist> MrSunshine, just mount a dti offset like http://www.ebay.co.uk/itm/Milling-Head-Square-Tramming-Gauge-Edge-Technology-1-8-Shank-/231205535219
[09:10:15] <archivist> use one and rotate, adjust spindle for min deflection
[09:11:47] <ssi> jthornton: :D
[09:12:17] <ssi> jthornton: once you get a handle on what go is good for and what it's not good for (UI sadly), it's a really awesome language
[09:12:49] <ssi> jthornton: and you're still doing everything sequentially... if you can parallelize it, I bet you can make it REALLY fast
[09:13:13] <archivist> use assembler, even faster :)
[09:13:22] * archivist ducks
[09:14:57] <jthornton> you would have to give me an example of that so I can understand
[09:17:34] <ssi> ok so I'm lookng over your code
[09:18:08] <ssi> looks like getEnt takes a list of lines in the source dxf and tries to find entities within, sticks them in a list and eventually returns the list
[09:18:43] <ssi> then findEndPoints takes that list of entities and tries to derive the endpoints and save them within the struct
[09:19:29] <ssi> so this may not be the most helpful example in the world because of the way you're doing it, but let me see if I can explain
[09:19:41] <ssi> I see two places right off the bat where you can parallelize at least some
[09:20:48] <ssi> one is when you're reading in the lines of the dxf... instead of just appending to your lines slice, you could stick the text on a channel
[09:20:50] <jthornton> a bit newer code http://pastebin.com/g7LZghPB
[09:21:08] <ssi> that way rather than waiting til you've built teh entire lines array, you can start extracting entities immediately while the file is still being read
[09:21:28] <ssi> then, getEnt would be running in its own goroutine (which is a lightweight thread), and it could be iterating over the channel instead of an input slice
[09:21:41] <ssi> and whenever it finds a complete entity, instead of appending it to an output slice, stick it on another channel
[09:22:07] <ssi> then findEndpoints would read from that channel, and do the endpoint fixup for each incoming entity, and then stick it on yet another outbound channel
[09:22:24] <ssi> then whatever downstream logic you use to arrange the entity would use that channel as its source
[09:22:36] <jthornton> ok, I'll have to study up on channels
[09:22:39] <ssi> that's a little cumbersome at the moment because you are relying on having a complete set of entities before you sort, but you get the idea
[09:22:46] <archivist> a tape sort on the channels
[09:22:52] <jthornton> yea I think so
[09:23:10] <ssi> it's not a big deal to do it sequentially with small dxfs, but when you start getting 10MB files with millions of entities, you can really get a lot of gain by using threads and channels
[09:23:20] <ssi> and that's one of go's biggest strengths, it makes concurrent programming like that super easy
[09:24:02] <ssi> archivist: yea mergesort or something would work well for that
[09:24:12] <jthornton> gotta get over this mole hill first I think then move on to concurrent programming
[09:24:17] <ssi> jthornton: yeah absolutely
[09:24:23] <ssi> just giving you some ideas of where to go in the future :)
[09:24:29] <jthornton> I'm stoked to get this far so quick
[09:24:44] <jthornton> and I've noted them
[09:25:16] <ssi> also, in places where you're using range to iterate over the entities
[09:25:30] <ssi> range actually returns a pair, the index and the item
[09:25:40] <ssi> so you can say for i, ent := range entities
[09:25:47] <ssi> and then you can use ent directly in teh loop instead of entities[i]
[09:25:52] <ssi> a bit cleaner that way
[09:25:57] <jthornton> ah cool
[09:26:04] <ssi> if you don't use the index inside the loop, you can ignore it like this:
[09:26:10] <ssi> for _, ent := range entities {
[09:26:10] <jthornton> _
[09:26:44] <ssi> and I noticed in your first paste that you were doing your error check "backwards" from how most people do it, but it's gone now
[09:26:57] <ssi> it's just a style thing, but usually you'd do if err != nil { handle }
[09:27:05] <ssi> rather than if err == nil { huge block of happy path }
[09:27:13] <jthornton> yea, it looked clunky to test after the fact instead of in the function
[09:29:38] <ssi> I'm glad you're liking it though
[09:29:48] <ssi> I use it A LOT these days
[09:30:00] <ssi> it's good for low level code that hits hardware too
[09:30:15] <ssi> all that podponics stuff I built runs go code that I wrote
[09:30:41] <ssi> it's a bunch of i2c sensors and relays on a beaglebone black cape, and there's a go client that runs on the bbb, phones home for scheduled jobs, and runs all the hardware and reports back metrics
[09:30:45] <ssi> it's great for that sort of stuff
[09:45:04] <Sync> PCW: is there a stock bitfile for the 7i80DB-16 that has uart on board?
[10:14:05] <pcw_home> I kind of doubt it
[10:16:28] <pcw_home> there are more oddball configs available for the 7I80HD
[10:17:04] <pcw_home> (not that its a huge effort co cobble a new config together)
[10:17:07] <jthornton> it actually generates G code from a dxf file in 183 lines of code http://pastebin.com/XgvCwvNH
[10:17:11] <pcw_home> to cobble
[10:17:16] <jthornton> not done yet but making progress
[10:17:30] <ssi> sweet
[10:18:16] <ssi> pcw_home: one of these days I need to actually figure out how to put together new firmwares, for real
[10:18:34] <ssi> cause I'm gonna need to start working on firmware to run that sserial remote servo drive
[10:19:21] * jthornton goes to ride in the woods now that is has warmed up a little
[10:19:42] <pcw_home> in general its pretty easy since its all pinout driven (you create a new pinout file and re-compile)
[10:19:48] <ssi> ah nice
[10:20:05] <ssi> I've done some hdl work and all my experience is in ISE, so that's a plus
[10:20:13] <ssi> but every time I look at the hostmot source I get a little dizzy ;)
[10:40:33] <MacGalempsy> good morning
[11:02:21] <willburrrr2003> Good Morning All from Seattle! I have been away for awhile, my last version of software was 2.5.4 , and I see we are up to 2.7.0 . I am thinking I need to do a fresh install if 2.7.0 , will I need to do anything special with my config files to work with 2.7.0 ?
[11:12:33] <cradek> yep
[11:12:35] <cradek> http://www.linuxcnc.org/docs/html/getting-started/updating-linuxcnc.html
[11:12:40] <cradek> this has instructions for 2.6->2.7
[11:12:51] <cradek> you will also need the updating instructions for 2.5->2.6
[11:14:00] <cradek> aha, http://www.linuxcnc.org/docs/2.6/html/common/Updating_LinuxCNC.html#_config_changes
[11:16:24] <willburrrr2003> Thanks cradek, as usual you are lots of help! I will read pages you posted.
[11:16:24] <MrSunshine> heh well that sucker was off by quite alot
[11:16:54] <MrSunshine> had to adjust my adjustments to the max to get it to where it was suposed to be .. and on top of that i also had a couple of chims the wrong way ... so the error was huge in up down squareness =)
[11:17:30] <MrSunshine> archivist: yes but this was the squareness of the linear rails to the table i measured now
[11:19:42] <MrSunshine> up and down movement
[11:19:58] <MrSunshine> was off in both "X" and "Y" direction quite alot .. got it within 0.05mm over 60mm now
[11:20:10] <MrSunshine> will have to be good enough for wood chucking
[11:33:53] <willburrrr2003> cradek: Have there been any signifigant changes to the lathe functions since Version 2.5.4 that I should be aware of?
[11:35:14] <cradek> heh you'll have to look through http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Released_2.7.X and also http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Released_2.6.X
[11:38:14] <willburrrr2003> Thanks Cradek, just finished looking there and see the same two bug fixes that don't look critically important to my lathe config and function
[12:11:18] <archivist> retrofit fodder http://www.ebay.co.uk/itm/BROWN-SHARPE-PTM-AUTOMATIC-LATHE-SPARES-OR-REPAIR-/321877725023
[12:11:41] <MacGalempsy> archivist: you picking up a new toy?
[12:12:09] <archivist> no
[12:13:01] <archivist> the CMM was overspending, I really need to save for a new car
[12:14:11] <MacGalempsy> any thoughts on what kind of car you will get?
[12:15:13] <MacGalempsy> http://www.dailymail.co.uk/sciencetech/article-3270060/The-end-heavy-metal-Boeing-shows-material-99-99-AIR-lead-new-generation-planes-spaceships.html#ixzz3oQx5jcHx
[12:15:55] <ssi> that lathe is a bit rough
[12:16:27] <archivist> may need some care and attention :)
[12:16:52] <archivist> treat it as some castings you can use
[12:17:03] <MacGalempsy> :}
[12:17:38] <ssi> shipping would be a touch prohibitive for me :D
[12:33:26] <archivist> but it would be a project for the list :)
[12:34:06] <ssi> yeah I need more of those :D
[12:34:17] <ssi> https://scontent-atl3-1.xx.fbcdn.net/hphotos-xpt1/v/t1.0-9/12141789_10100794727487252_1266893978313916640_n.jpg?oh=6350aa94ffae54fdc0e18eca0c4731c4&oe=56868BE1
[12:34:22] <ssi> my furnace is getting furnacey!
[12:35:24] <archivist> its like this, restored one already so know what is needed http://www.ebay.co.uk/itm/361407282890
[12:35:46] <ssi> neat
[12:35:59] <archivist> but... too costly to collect, not a lot if any profit
[12:45:31] <aventtini6> hello guys
[12:46:58] <aventtini6> has anyone seen a Tyrex mill from 95 whit fiber optic comunication?
[12:53:50] <pcw_home> what controller? Fanuc uses fiber a lot (FSSB)
[12:55:22] <pcw_home> (interface details are more controller related than machine related)
[13:01:28] <aventtini6> i wil amke some pics
[13:01:35] <aventtini6> make
[13:03:13] <aventtini6> the comunication from the pc and drive it on fiber
[13:03:29] <aventtini6> its a english made machine
[13:03:34] <aventtini6> it just came today
[13:03:55] <aventtini6> i was impresed
[13:04:10] <aventtini6> i cant find the link to post
[13:04:41] <aventtini6> win95
[13:14:23] <archivist> google is not finding tyrex
[13:15:08] <archivist> I wonder if someone stuck a badge on another make
[13:23:30] <enleth> Any ideas on removal and installation of bport spindle bearings without an arbor press?
[13:24:13] <archivist> removal destructively?
[13:24:53] <enleth> Actually I may need to replace both the spindle and the bearings, which means that I just don't have to remove the old bearings from the old spindle in a gentle way
[13:25:06] <enleth> But I may have to put new bearings on a new spindle properly.
[13:25:42] <archivist> I tend to make tooling or use a dremel to cut a slot, then chisel to crack it
[13:25:50] <enleth> One stupid idea I have is to use the quill/head as the stop and the knee as the press.
[13:26:50] <enleth> Like, put a board with a hole at the tip of the quill, pass the splined spindle part through it, put the spindle nose on the table with another piece of board under it and crank the knee up gently
[13:27:17] <archivist> see if someone local has bearing pullers (proper ones not toy automotive)
[13:27:48] <enleth> That's for removal, but I think something press-like is needed for assembly?
[13:28:03] <archivist> use a threaded bar through and two machined disks to insert new
[13:28:48] <enleth> Through the spindle? No can do if I get another solid one
[13:29:29] <archivist> spindle not hollow?
[13:29:40] <archivist> tube spacers too
[13:29:48] <enleth> Most QC30 spindles are solid
[13:30:35] <enleth> There are hollow QC30 spindles out there but I don't think they're factory drilled
[13:31:38] <enleth> AFAIK Bridgeport never made a non-QC ISO30 taper spindle for the CNC models, and never made a hollow QC30 spindle
[13:32:54] <aventtini6> yes you are right
[13:33:14] <aventtini6> all the intelect has a quick change
[13:33:35] <aventtini6> or some sort of nut
[13:33:44] <aventtini6> that holds the cone
[13:39:14] <lair82> Good afternoon guys, question about grounding, with all the different voltage power supplies used on these controls, should you connect all of common wires to ground, or no?
[13:39:36] <Tom_itx> star ground
[13:39:44] <Tom_itx> yes
[13:40:01] <Tom_itx> just make sure one is not a floating ground
[13:40:01] <archivist> enleth, also you can use threaded rod outside, part of my ex army kit has rods for outer work then an inner push
[13:40:02] <enleth> lair82: there should be a single point where all ground wires meet
[13:40:21] <Tom_itx> aka star ground
[13:41:08] <enleth> Tom_itx: ah, it makes sense, never heard it called that way
[13:41:38] <enleth> archivist: you mean a hollow threaded tube or something?
[13:41:44] <lair82> Ok, I was wondering, there is ac voltage floating around on the 24vdc side of the machine, and I noticed that from the start
[13:42:03] <Tom_itx> single ended shielded wires too
[13:42:26] <Tom_itx> keep data wires away from power wires
[13:42:38] <lair82> What do you mean floating ground?
[13:42:54] <Tom_itx> some devices have a 'ground' but it's not at zero potential
[13:42:58] <enleth> lair82: get one of those nice brass bus bars with wire holes and screws to clap down the wires, connect everything there, connect it to supply ground/PE
[13:43:04] <Tom_itx> rather floating above 0 at some voltage
[13:43:06] <enleth> *clamp
[13:43:15] <Tom_itx> it is ground to the device but not the outside world
[13:43:37] <Tom_itx> my spindle motor controller is one such example
[13:43:50] <Tom_itx> i had to get an isolation board to use it with external logic
[13:45:22] <lair82> Ok, that makes sense.
[13:50:31] <CaptHindsight> how hard do you laugh when a supplier comes back with a comment like "we like to sell it" 4 tons, 5 drums, a truckload at a time, etc., when you ask for pricing on more than you really need anyway?
[13:51:49] <CaptHindsight> LOL, nice try and I like it when customers order an entire shipload at a time and pay me in cash up front in whatever amount I ask
[14:09:47] <archivist> enleth, rods either side of the frame upwards to a u channel across
[14:10:19] <archivist> so stresses are only on the bearing outers
[14:15:20] <archivist> if you have space a 3 leg one is better
[14:48:28] <MrSunshine> phew, well that spindle was out quite a bit ... i got it alot better but not perfect =)
[14:48:47] <MrSunshine> the sleave for the spindle isnt straight witht he world either .. damn china thingies
[14:50:05] <_abc__> New or bumped?
[14:51:35] <MrSunshine> ?
[14:52:43] <_abc__> The spindle runout was factory or man-made?
[14:53:32] <MrSunshine> ah spindle ive ground before
[14:53:40] <MrSunshine> was 0.1mm off int he ER collet cone
[14:53:56] <MrSunshine> this is getting it straight with the world (fix the Z up down motion and tramming it to the table)
[14:54:35] <_abc__> How do you measure orthogonality anyway?
[14:55:23] <MrSunshine> is that up down ?
[14:55:38] <MrSunshine> a square on table and move spindle up and down ? =)
[14:55:50] <_abc__> Right angles to xy planes. The angles...
[14:58:13] <_abc__> More like mounting a smooth cylinder in the collet and then using a precision cube with at least 2 calibrated Z positions for a feeler gauge to feel the cylinder in the collet, and account for runout...
[14:58:35] <_abc__> I think....
[14:59:04] <_abc__> There may be a fancyer tool for that, I don't know.
[15:00:12] <Sync> what?
[15:00:17] <Sync> that is way too complicated
[15:00:32] <_abc__> You are looking for 0.01mm error on a 50mm side cube, that's 1 part in 5000, not something you eyeball.
[15:01:22] <Sync> easily measureable with an indicator
[15:01:44] <_abc__> Right.
[15:02:07] <_abc__> Feeler gauge means dial gauge with feeler.
[15:02:08] <MrSunshine> to see if the Z axis linear bearings moves straight with the world you need to have something on the X/Y table to see ...so a precision square and an indicator i feel would be alot better than a square and a feeler guage :P
[15:03:10] <Sync> yeah for alinging the Z axis you just indicate along a square
[15:03:32] <Sync> for squareness of the spindle you put the indicator on an arm and turn the spindle 180°
[15:03:37] <Sync> and it has to read the same
[15:03:39] <_abc__> The square needs to be mounted to the table and it has to have calibrated positions, at least 2, for the feeler dial mount.
[15:03:48] <Sync> no
[15:04:24] <_abc__> This is not about spindle runout this is about Z axis orthogonality with table.
[15:04:33] <Sync> yes
[15:04:39] <Sync> you just put a square on the table
[15:04:43] <Sync> and indicate along it
[15:04:43] <MrSunshine> yes, a square on the table, a dial indicator on the moving part of the Z ...
[15:04:47] <Sync> it is pretty easy
[15:04:47] <MrSunshine> move the Z up and down
[15:04:53] <MrSunshine> see if the dial moves
[15:05:06] <_abc__> Sigh
[15:11:43] <_abc__> You need 3 points to define an angle, not 2
[15:11:49] <XXCoder> what kind of problems can spindle runout cause
[15:13:13] <_abc__> Vibration, broken tools, broken material when it is a thin edge, loss of precision, early bearing death.
[15:13:42] <SpeedEvil> World war III
[15:13:59] <_abc__> On a cnc runout should be at most half a resolution step.
[15:14:18] <SpeedEvil> resolution is not the same as accuracy
[15:14:25] <_abc__> Sometimes that is hard so compromises are made.
[15:14:46] <_abc__> Exactly speed.
[15:15:06] <MrSunshine> _abc__: well .. if you have something that ALREADY is square, to measure against ...
[15:15:06] <_abc__> So half an 'accuracy' step is okay too
[15:15:10] <MrSunshine> =)
[15:15:55] <_abc__> You need THREE points. Dial feeler moved to 2 stations on Z.
[15:16:16] <MrSunshine> well you have to explain wtf a dial feeler is then .. to start with
[15:16:20] <MrSunshine> never heard the word even
[15:16:42] <Sync> _abc__: you are not interested in an angle
[15:16:48] <_abc__> Dial gauge with a lever like feeler end.
[15:16:52] <Sync> you shim the axis until it reads the same
[15:17:20] <XXCoder> ok
[15:17:20] <Sync> also that will give you an angle just fine
[15:17:30] <Sync> as you know Z and x/y
[15:17:38] <_abc__> I am interested in 2 measurement locations. And not in moving Z
[15:18:11] <Sync> pcw_home: yeah, I figured that, I'm just downloading ISE to get started
[15:20:07] <Sync> enleth: cool spindle in freezer, heat bearing in oven, put them together
[15:20:39] <Sync> _abc__: if you want to complicate it, sure why not
[15:21:14] <_abc__> Necessity, not complication.
[15:21:42] <enleth> Sync: we're talking $300 precision bearings, are ovens healthy for those?
[15:22:00] <MrSunshine> heh we might have talked past eachother then :P, put a square on the table .. measure X until its straight with the square, then measure Y .. if its off then its off :P
[15:22:14] <Sync> yes enleth
[15:23:25] <enleth> What temperature would I aim for?
[15:23:34] <Sync> _abc__: you overcomplicate the act of measuring the spindle position, it really is that simple
[15:23:38] <Sync> 90°C is fine
[15:23:51] <Sync> if you are scared, 70°C
[15:24:09] <enleth> OK, that sounds reasonable
[15:24:35] <Sync> just be warned, you only get one shot
[15:24:52] <Sync> so on it goes and no messing about
[15:25:05] <enleth> Freezing the spindle is another problem, it won't fit in the freezer I have, and I got rid of the big beer keg freezer
[15:25:21] <Sync> just get some dry ice from the supermarket
[15:25:49] <Sync> or simply put it in the fridge, everything that increases your temperature difference gives you more clearance
[15:26:50] <_abc__> I find meat freezer for 2 hours followed by gas torch applied locally helps a lot...
[15:27:01] <XXCoder> Sync: make your own ref
[15:27:12] <XXCoder> buy dry ice and ice cooler
[15:27:45] <XXCoder> it should last long enough for your task
[15:27:48] <Sync> gas torch is risky, as you might overheat the bearing
[15:27:58] <MrSunshine> i wish supermarkets in sweden had dry ice
[15:28:06] <MrFluffy> $300 bearing, $20 junkyard freezer purchase to install, sounds good to me.
[15:28:20] <MrFluffy> it only has to work once before you take it back
[15:28:23] <Sync> they do, MrSunshine, almost all of them get it in delivery
[15:28:48] <MrFluffy> you can buy dry ice from specialist cookery suppliers now
[15:28:49] <MrSunshine> never seen it for sale atleast
[15:29:15] <Sync> yeah because nobody would buy it
[15:29:18] <MrFluffy> google for near you, you have to order it but it comes in a poly container to pick up
[15:29:19] <Sync> ask the fish counter for it
[15:29:26] <Sync> or oder it, yeah
[15:29:59] <MrFluffy> I found a outlet within 30km of my house in rural france that would sell me a block of dry ice in this way
[15:30:38] <MrFluffy> because we were going to be dropping it in a intercooler we needed a source, and it ended up being a food supply wholesaler
[15:31:13] <MrFluffy> in the isolated container it will last a day or two
[15:32:26] * _abc__ wonders what wonderful French foods can be prepped with dry ice.
[15:32:48] <MrFluffy> a non linuxcnc q, cheapest syncronous way to get 500kw drive from two spindles about a metre apart centres
[15:33:40] <MrFluffy> fish, cocktails, all sorts of weirdness, I'm more of a fries at the supermarket cafeteria guy myself though, I was just interested in throwing it in a intercooler to reduce temps before a pass.
[15:34:13] <MrFluffy> rotational speed of spindles peaking at 1600rpm. So far a 20b chain is looking cheapest...
[15:34:32] <Sync> chain or belt, yeah
[15:34:58] <MrFluffy> I priced a belt and it was $1200 for the specs unless Im looking at the wrong type
[15:35:04] <SpeedEvil> hah
[15:35:18] <MrFluffy> I'd prefer a belt because if a chain goes wrong it gets a bit dangerous when it lets go but a chain is $200
[15:35:31] <SpeedEvil> https://www.youtube.com/watch?v=zMQjcukphpA - on the topic of 300kW drives DIY
[15:35:36] <SpeedEvil> with integral gearbox
[15:36:47] <Sync> I like how the original inverter is triangular
[15:38:13] <MrFluffy> I was going to use a transfer gearcase out of a range rover, but there's doubts on its strength and it looked a bit messy
[15:40:14] <MrFluffy> just thought id ask as there's some sharp people whenever Ive been here with good ideas, so durty big drivechain it is then!
[15:42:01] <MrFluffy> And a substantial cover...
[15:42:36] <dr0w> so maybe someone with small lathe that uses taig/maxnc style tool posts can help me with n00b question.. the cutting edge of the tool doesn't line up vertically with the center of the workpiece.. what's up with that?
[15:43:23] <MrFluffy> you have to pack each tool with a shim to centre it
[15:43:40] <MrFluffy> unless you have a qctp toolpost that has a screw style height adjuster
[15:43:54] <dr0w> I've had some success using a pc. of shim stock.. I thought maybe I was missing something
[15:45:04] <MrFluffy> if you swap the normal taig style fixed toolpost for a quick change one, they have a height adjustment to raise and lower the toolholder section
[15:45:14] <MrFluffy> but, shims are cheap and work
[15:46:28] <MrFluffy> Interesting mod :- http://www.micro-machine-shop.com/rocker_tool_post.htm
[15:46:32] <dr0w> yeah.. the quick change tool post with the dovetail like a big boy lathe..
[15:47:25] <MrFluffy> that gives you the adjustability of a old boat style toolpost with a modified taig toolpost, but you still have to set the tool on centre each change
[15:48:24] <dr0w> I saw that guy's modification. wondered if I could find a woodruff key that size
[15:48:52] <MrFluffy> or saw it out of a steel round?
[15:49:16] <dr0w> true
[15:49:37] <MrFluffy> do you have access to a mill to cut the curved hollow would be the more important awkward bit
[15:50:17] <MrFluffy> or another lathe, mount it off centre in a four jaw or on a faceplate and turn the shape in
[15:51:08] <dr0w> ahh.. I didn't even consider turning it..
[15:51:16] <MrFluffy> thats the real problem with modifying lathes, you always need another one to finish it in the middle of the job :)
[15:51:23] <dr0w> interpolating it in a mill would be the challenge
[15:51:50] <dr0w> I might be able to cash a favor if I had my ducks in a row
[15:52:13] <MrFluffy> draw the cut in cad if you have access to a cnc, or make another toolpost with that shape in while your at it
[15:52:57] <MrFluffy> or mount on a rotary on a manual mill, just crank it round which is what that author has done
[15:56:08] <MrFluffy> lot of interesting mods on that page... you dont need a industrial machine to be clever about things
[15:57:46] <MrFluffy> its easier to just keep the shims with the toolbit with some rubber bands tho...
[15:57:58] <dr0w> yeah.. I saw a handful of ideas I'd like to 'borrow'
[15:59:55] <Sync> MrFluffy: a chain probably is the easiest
[16:02:49] <MrFluffy> I'm after cheapest, because I'm a cheapskate and its my money :)
[16:03:13] <MrFluffy> but I also have to stand near it in use...
[16:04:53] <dr0w> MrFluffy: thanks for the input
[16:14:41] <MrFluffy> dr0w, no problem, its interesting to have to think round problems, thats a lot of why people have home shops
[16:16:40] <SpeedEvil> if you have round problems, you probably want a lathe.
[16:17:01] <Tom_itx> what about a round tuit?
[16:18:00] <MrFluffy> someone was selling them on PM a while back
[16:23:46] <andypugh> Is anyone else getting 403 for linuxcnc.org?
[16:24:08] <Tom_itx> yes
[16:24:14] <MrFluffy> yes
[16:24:16] <Tom_itx> docs are ok though
[16:24:20] <Tom_itx> as is the wiki
[16:24:55] <MrFluffy> is the front page driven by some cms thats down?
[16:26:03] <Deejay> gn8
[17:21:26] <MrFluffy> one 100# 10ft chain and two 100B roller sprockets secured, I think I need a lie down to recover from the damage to my wallet though...
[17:30:34] <MrFluffy> gnite
[17:47:04] <zeeshan> LOL
[17:47:06] <zeeshan> ITS IN
[17:47:10] <zeeshan> holy shit
[17:47:35] <zeeshan> http://i.imgur.com/slg9m6U.jpg
[17:47:41] <zeeshan> im REALLY happy
[17:47:46] <zeeshan> cause now i can see it fitting right beside my welding tablwe
[17:47:50] <zeeshan> and the car can still come back in
[17:47:52] <zeeshan> hooray!!!!!!!1
[17:49:48] <Tom_itx> what size garage?
[17:50:00] <zeeshan> like 20x22
[17:50:24] <Tom_itx> mine looks small because i put a center wall in it
[17:50:29] <Tom_itx> i could remove it
[17:50:38] <zeeshan> you mean dual doors
[17:50:40] <zeeshan> vs 1 large door?
[17:50:44] <Tom_itx> uh huh
[17:50:50] <zeeshan> yea
[17:50:53] <zeeshan> thats not great
[17:50:57] <Tom_itx> i had a 'shop' in one side for a while
[17:51:08] <zeeshan> that was one of the criteria when i was buying this house
[17:51:11] <zeeshan> large isngle door
[17:51:19] <zeeshan> cause you can move the car in at whatever angle
[17:51:20] <Tom_itx> i built the garage
[17:51:24] <zeeshan> ah!
[17:51:30] <zeeshan> dude im so happy
[17:51:34] <zeeshan> i haven't been this happy in a while :D
[17:51:42] <zeeshan> it's actually going to fit!
[17:52:27] <Tom_itx> where's the mill?
[17:52:40] <zeeshan> in the corner :P
[17:52:46] <zeeshan> look at the very right side
[17:52:50] <zeeshan> its peaking out
[17:52:53] <Tom_itx> yeah i see it now
[17:53:29] <Tom_itx> the lathe makes it look like a toy
[17:53:34] <zeeshan> haha
[17:54:19] <zeeshan> dude
[17:54:33] <zeeshan> im kinda iffy about using my machine jack that i built
[17:54:35] <zeeshan> to lift this thing
[17:54:42] <zeeshan> i designed it for 8000lb
[17:55:01] <Tom_itx> not the cherry picker?
[17:55:10] <zeeshan> cherry picker wont even move it
[17:55:11] <zeeshan> lol
[17:55:25] <zeeshan> but you made me think of something else
[17:55:34] <zeeshan> since all im trying to do is lift it and put it on skates
[17:55:44] <zeeshan> i could share the load between the toe jack and hoist
[17:55:45] <Tom_itx> you need a JT-Shop2 gantry
[17:56:06] <zeeshan> need super man
[17:56:09] <zeeshan> he's do it ez
[17:56:13] <Tom_itx> leverage
[17:57:43] <Tom_itx> are you gonna leave the skates under it?
[17:58:01] <Tom_itx> and how do you plan to level it?
[17:58:08] <zeeshan> noo
[17:58:12] <zeeshan> i got 3/8 steel plate
[17:58:17] <zeeshan> and machine feet for it
[17:58:24] <zeeshan> ill sit it on that
[17:58:26] <zeeshan> and then level it
[17:58:41] <zeeshan> not going to worry about that till i have the machine running though
[17:58:46] <Tom_itx> is 3/8 enough?
[17:58:57] <zeeshan> yes
[17:59:01] <Tom_itx> probably...
[18:02:31] <malcom2073> Damn heh zeeshan, that barely fit vertically
[18:03:15] <zeeshan> 2" clearance
[18:03:15] <zeeshan> haha
[18:04:27] <PetefromTn_> Ooh nice
[18:05:43] <Tom_itx> 2 boys with 2 dead lathes.
[18:05:48] <Tom_itx> :(
[18:05:54] <zeeshan> haha
[18:06:02] <zeeshan> gimme like 4 months
[18:06:07] <PetefromTn_> boys?
[18:06:17] <zeeshan> PetefromTn_: he hasn't seen our hairy balls yet
[18:06:22] <Tom_itx> boys n their toys
[18:06:33] <Tom_itx> nor do i care to
[18:06:49] <malcom2073> Lol
[18:06:56] <malcom2073> And one with a dead mill :)
[18:10:02] <andypugh> I only have two working lathes at the moment. Unless you count the one that I keep in my dad’s workshop :-)
[18:10:23] <andypugh> I am fairly sure that I don’t actually need 4 lathes.
[18:11:09] <zeeshan> fix mine!
[18:11:40] <PetefromTn_> Im still trying to collect parts formine
[18:11:42] <PetefromTn_> mine
[18:12:02] <PetefromTn_> but work has been picking up a LOT lately so that should be getting done soon
[18:12:04] <andypugh> I just started looking at watchmakers lathes on eBay :-)
[18:12:24] <zeeshan> nice pete
[18:12:26] <zeeshan> good to hear
[18:13:54] <PetefromTn_> yeah I am kinda surprised actually
[18:14:07] <PetefromTn_> for so long there was just little bits here and there.
[18:14:33] <PetefromTn_> now I come home from the race shop and sit down until dinner then back in the shop working till midnight or later LOL
[18:14:44] <zeeshan> :D
[18:14:52] <zeeshan> how many hours do you work at the race shop
[18:15:02] <PetefromTn_> not too many really
[18:15:08] <PetefromTn_> totally part time
[18:15:15] <zeeshan> ah
[18:15:22] <svh> howdy zeeshan
[18:15:25] <PetefromTn_> they were tuning a SWEET supra today on the dyno
[18:15:31] <zeeshan> hi
[18:15:42] <PetefromTn_> about 26=27 hrs a week
[18:15:53] <zeeshan> thats not bad man
[18:15:54] <svh> just got linuxcnc up and running long overdue
[18:15:58] <svh> :D
[18:16:00] <zeeshan> lets you get some consistent $$
[18:16:06] <zeeshan> and also grow your business
[18:16:15] <PetefromTn_> you know honestly that is the BEST part of it
[18:16:26] <PetefromTn_> I don't have to worry about slow times
[18:16:41] <PetefromTn_> and to be honest it is pretty cool working over there making kickass cars LOL
[18:16:49] <zeeshan> =]
[18:16:54] <svh> where at pepboys?
[18:17:03] <svh> heh, just jking.
[18:17:24] <svh> need to get a new controller?
[18:17:28] <PetefromTn_> heh no not at pepboys
[18:17:38] <svh> so gecko g540, any other place to get a good deal
[18:17:38] <PetefromTn_> BB in a bit gotta eat dinner
[18:17:50] <svh> flea-bay seams to have the best deal so far with the 48vdc controller
[18:17:58] <svh> er. PSU
[18:18:17] <svh> anywho. i'll keep digging but it appears it doesn't get any cheaper than $300 with the power supply
[18:18:38] <andypugh> What is it that you like about the G540?
[18:18:50] <svh> not sure, anything equivalent.
[18:19:00] <svh> been using the cheap chinese controller
[18:19:08] <svh> and i know my machine can run faster
[18:19:15] <andypugh> TB6550?
[18:19:17] <svh> its a K2CNC
[18:19:31] <svh> yea
[18:19:36] <svh> i think that is the one i have
[18:21:33] <andypugh> Ooh! Cute little steppers! http://www.ebay.com/itm/5pcs-6X8-5MM-Miniature-stepper-motor-With-black-gear/171907200927?_trksid=p2045573.c100034.m2102&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D33890%26meid%3D0886467c31334da1bb188186434c8abc%26pid%3D100034%26rk%3D3%26rkt%3D8%26sd%3D161560237771
[18:22:04] <svh> ha.
[18:22:17] <andypugh> I think I would be loking at individual drivers, and possible mains-input ones.
[18:22:33] <andypugh> The more volts the better where steppers are concerned.
[18:23:34] <svh> anything will be better than 18IPM
[18:23:36] <svh> ;p
[18:23:43] <svh> that is the most i can get out of this controller
[18:24:28] <svh> and rather than mod it with the hex inverter opt to get a new one
[18:24:31] <andypugh> I know nothiong about this driver, other than that it exists. http://www.ebay.com/itm/CNC-3ph-NEMA23-NEMA34-Stepper-Motor-Driver-110-220VAC-4-8A-LC3422HTC-new-in-box-/191644780054?hash=item2c9eeb4616 and plugs straight into mains power, not needing a DC PSU
[18:24:33] <svh> maybe save it for another project
[18:25:53] <andypugh> But you could also look at the close-loop steppers that give servo-like performance and still take step-dir input: http://www.ebay.com/itm/2NM-Nema23-Leadshine-Closed-loop-stepping-motor-drive-kit-HBS507-573HBM20-1000/191574934333?rt=nc&_soffid=5009067504&_soffType=OrderSubTotalOffer&_trksid=p5731.m3795
[18:27:02] <svh> interesting
[18:27:58] <andypugh> Next to me on the floor I have 1kW servo that is going on my lathe. That is 2Nm rated too....
[18:28:10] <zeeshan> cute
[18:28:21] <andypugh> And it’s about the size of a shoe box.
[18:28:23] <Praesmeodymium> thats the kind of thing I have power for
[18:29:05] <zeeshan> andypugh: i was looking at the servos
[18:29:08] <zeeshan> wtf
[18:29:12] <zeeshan> they got gear boxes on em
[18:29:22] <zeeshan> isnt that going to introduce backlash
[18:29:37] <andypugh> Gearboxes or harmonic drives
[18:29:39] <andypugh> ?
[18:29:44] <zeeshan> looks like gear boxes
[18:29:47] <zeeshan> i cant tell
[18:29:53] <zeeshan> it bolts directly to the servo
[18:30:21] <andypugh> Maybe they are zero-backlash drives somehow. It seems likely that Okuma knew what they were doing...
[18:32:20] <andypugh> Anyway, time for me to log off.
[18:35:03] <JT-Shop2> wheel lacing is done :)
[18:41:24] <zeeshan> darn he left
[18:45:06] <zeeshan> http://i.imgur.com/bOBzubN.jpg?1
[18:45:13] <zeeshan> hmm this monstorous sized motor
[18:45:22] <zeeshan> only is 12A continuous??
[18:49:16] <PetefromTn_> jeez 12NM
[18:49:18] <PetefromTn_> LOL
[18:49:44] <zeeshan> my z motor on the mill is same size i think
[18:49:53] <zeeshan> and im running that w/ an amc drive
[18:49:54] <zeeshan> hmm
[18:50:13] <zeeshan> i want to see it spinning =.
[18:53:13] <JT-Shop> PetefromTn_, just finished relacing the 29er rear wheel, not as bad as I thought
[18:58:29] <PetefromTn_> 29er?
[18:59:09] <JT-Shop> http://www.giant-bicycles.com/en-us/bikes/model/talon.29er/18770/76227/
[18:59:44] <JT-Shop> kept breaking rear spokes so I got a set of wheelsmith spokes and nipples
[18:59:45] <PetefromTn_> Ok nice
[19:00:28] <JT-Shop> had a broken one this morning so that was the last straw so time to dive in and get er done
[19:00:39] <renesis> zeeshan: continuous at stall, so it would be less during operation
[19:00:39] <JT-Shop> cobbled up a truing stand
[19:00:43] <PetefromTn_> sweet
[19:00:47] <renesis> i mean, unless you want to operate it stalled
[19:00:53] <jdh> JT: I made one out of angle aluminum
[19:00:56] <renesis> like 2.5hp, neat
[19:01:20] <JT-Shop> yep ready for the morning ride now
[19:02:30] <jdh> JT: http://tinyurl.com/pchawpg
[19:03:04] <JT-Shop> nice
[19:03:21] <jdh> have yet to try an entire wheel so far.
[19:04:12] <JT-Shop> I removed all the outer spokes from both sides then changed the inners one at a time... measure the offset before you take it down lol
[19:04:28] <Roguish> JT: getting the spoke tension uniform is a real challenge.
[19:04:55] <JT-Shop> yea, I can play a tune on mine lol
[19:05:42] <Roguish> I gave up building my wheels long ago. Have a friend who is a really, really good bike mechanic. only charges me $50 a wheel and includes the spoke. his wheels are near bullet proof.
[19:06:28] <JT-Shop> can't beat that
[19:07:22] <Roguish> yeah, I've tried, but gave up. this guy worked for Mavic neutral support in the Tour de France in the 80's.
[19:07:24] <renesis> i think dans comp did mine free when i bought the parts
[19:07:30] <renesis> maybe not
[19:08:05] <Roguish> but if you can build your own wheels, more power to ya. !!!!!
[19:08:23] <renesis> neat faq says free, $15/wheel if you send them parts
[19:08:35] <JT-Shop> it's not too bad, but you can get out of wack real quick if your not paying attention
[19:08:44] <renesis> heh, they maybe just do BMX wheels
[19:09:10] <jdh> and rear wheel dishing
[19:10:10] <renesis> heh, takes me forever to get a wheel true, go to a shop and dude does it in a couple minutes better
[19:10:42] <Roguish> https://youtu.be/WXfK8VPgfaA
[19:10:46] <JT-Shop> http://gnipsel.com/images/mountian-bike/truing%20stand%2001.jpg
[19:10:48] <renesis> doesnt seem worth it to try and build and true that shit myself
[19:10:54] <JT-Shop> http://gnipsel.com/images/mountian-bike/truing%20stand%2002.jpg
[19:11:47] <JT-Shop> my factory trued wheels were all over the place lol
[19:12:07] <renesis> new bike is china trash, seems okay
[19:12:24] <JT-Shop> road?
[19:12:44] <renesis> no, bmx cruiser
[19:13:22] <jdh> I bought an mtb a month or so ago. Haven't checked the wheels but they look ok spinning on the bike
[19:13:23] <Roguish> I stick to the road.
[19:13:52] <JT-Shop> how does that work with no gear changer on the bmx?
[19:13:58] <renesis> jdh: yeah i dont care until it does weird things to my brakes
[19:14:09] <jdh> discs, can't tell from taht.
[19:14:23] <jdh> one of my road bikes has discs also. haven't checked it either.
[19:14:30] <JT-Shop> we have 26 miles of trails 5 miles from the house
[19:14:51] <JT-Shop> the roads are too noisy around here with truck traffic
[19:14:56] <jdh> I have hundreds of miles of roads, starting at my house. Have to drive to mtb
[19:15:17] <jdh> but, I drove 90 miles this morning to road bike for 75.
[19:15:44] <JT-Shop> I would like to ride the road if there was some safe places to ride
[19:16:23] <Roguish> My '86 steel Serotta is now a 'classic', some even call it 'retro'..........it's not the bike that slows me down. it's the aging engine..
[19:16:55] <Roguish> I only wish I could ride it as good as it deserves.
[19:16:57] <JT-Shop> lol, yea I know about that...
[19:17:12] <jdh> heh... that's true for all of mine.
[19:17:32] <JT-Shop> hmm linuxcnc.org is down
[19:17:38] <Tom_itx> parts of it are
[19:17:45] <JT-Shop> I get forbidden
[19:17:46] <Tom_itx> docs are ok, wiki is ok
[19:17:48] <jdh> I settle for mine looking good, and going slow.
[19:17:52] <Tom_itx> yes 403 on the main page
[19:18:31] <zeeshan> mach 3 ddos?
[19:18:38] <JT-Shop> yea, the local bike shop was trying to sell me a 2k Trek when I first started riding a few years ago... he didn't have a clue what a newbee needs
[19:18:44] <zeeshan> jt
[19:18:50] <JT-Shop> k
[19:18:51] <zeeshan> did you build that sander behind your wheel?
[19:19:15] <JT-Shop> no
[19:19:36] <JT-Shop> but it is the best grinder in the shop
[19:19:55] <zeeshan> which one is it?
[19:20:00] <zeeshan> i want one like that
[19:20:17] <Roguish> Most of the people I ride with are sitting on $8k and up rides. One just got herself a $11k Colnago. pretty bike...
[19:20:55] <JT-Shop> got it from trick tools
[19:21:02] <zeeshan> ah
[19:21:07] <zeeshan> i also like how you have a computer
[19:21:11] <zeeshan> randomly sitting on your work bench
[19:21:15] <JT-Shop> http://www.trick-tools.com/2_Wheel_Grinders_24
[19:21:17] <zeeshan> next to a hammer and some lithium grease
[19:21:17] <zeeshan> :)
[19:21:35] <zeeshan> darn, expensive
[19:21:49] <JT-Shop> I just swapped the computer that I'm on with that one, now I need to take the mb out and swap the one in the beer cave
[19:22:05] <JT-Shop> upgrade spiral
[19:22:26] <JT-Shop> yea, the 2 x 48 is much better there are more belts
[19:22:49] <JT-Shop> if you have a grinder now you can just get the belt part
[19:23:35] <JT-Shop> http://www.trick-tools.com/2_Wheel_Grinders_24
[19:24:02] <JT-Shop> say goodnight Gracie
[19:55:32] <zeeshan> PetefromTn_: lol
[19:55:52] <zeeshan> shit my z axis is only 7.8Nm
[19:55:54] <zeeshan> for the mill
[19:56:01] <zeeshan> im confused how this thing has the same current rating?
[19:57:10] <Wolf_> RPM the same?
[19:57:41] <zeeshan> no
[19:57:43] <zeeshan> its half the rpm
[19:57:58] <zeeshan> so my z axis on the mill is 13.8A, 173V , 3000 rpm
[19:58:10] <zeeshan> the z axis on the lathe is 12A, 165V, 1500rpm
[19:58:36] <zeeshan> zaxis on mill is 7.8Nm, z axis on lathe is 12Nm
[19:59:35] <Wolf_> more turns on the winding or something
[19:59:54] <zeeshan> it must have more copper
[19:59:58] <zeeshan> it weighs 70kg
[20:00:01] <zeeshan> while the mill one is 28kg
[20:00:10] <zeeshan> so more winding makes sense
[20:00:11] <Wolf_> lol
[20:00:13] <zeeshan> but wouldnt it draw more current then?
[20:00:15] <archivist> power=torque*rpm
[20:00:38] <zeeshan> archivist: yes, but power = current times voltage too
[20:00:42] <zeeshan> and thats why im confused :P
[20:01:11] <zeeshan> i can see torque being higher at a lower rpm
[20:01:13] <zeeshan> that makes sense
[20:01:21] <archivist> no you are quoting the torque nm and confusing it with power
[20:01:50] <archivist> power is similar
[20:02:29] <zeeshan> so basically a be25a20ac drive
[20:02:33] <zeeshan> will run this motor fun?
[20:02:48] <zeeshan> 25A peak, 12.5 continuous
[20:03:03] <zeeshan> the drive is physically tiny compared to the fanuc driive..
[20:04:48] <archivist> there is efficiency too, and is the cooling different
[20:05:33] <archivist> easier to get cooling air to circulate at a higher speed
[20:05:57] <zeeshan> maybe im not following you
[20:06:28] <zeeshan> i can understand that torque is higher because the peak rpm is lower
[20:06:41] <zeeshan> but i don't understand why its 70kg vs 28kg
[20:06:47] <zeeshan> consuming the same amount of power
[20:06:56] <zeeshan> and less current
[20:07:17] <zeeshan> you're saying the motor needs more copper as a heatsink at lower speeds?
[20:08:08] <archivist> you need a larger diameter to get higher torque for the same forces, you need to conduct heat away differently at lower speed
[20:08:23] <archivist> both those add to weight
[20:08:39] <trentster> Hi all new water cooled spindle is arriving soon, I need to buy water pump, preferably something silent - would any entry level small fish tank pump do?
[20:09:25] <malcom2073> I've heard a 5 gallon bucket is actually enough cooling
[20:09:39] <jdh> with no pump?
[20:09:41] <malcom2073> Oh wait
[20:09:42] <malcom2073> bwahaha
[20:09:43] <malcom2073> oops
[20:09:55] <jdh> I use a 2.5 gallon bucket
[20:09:58] <malcom2073> Hmmm, one would expect a rotor on the back of the motor to auto-circulate
[20:10:05] <jdh> nah.
[20:10:17] <jdh> 24krpm rotor for water?
[20:10:21] <malcom2073> :-D
[20:10:23] <malcom2073> Hells yeah!
[20:10:28] <malcom2073> Point taken though
[20:13:15] <jdh> trentster: pretty much anything that has enough head pressure for whatever height you have will work.
[20:13:45] <zeeshan> http://cncmanual.com/fanuc/
[20:13:48] <zeeshan> holy cowe
[20:13:52] <jdh> well, assuming you mean a generic chinese water cooled spindle. no idea about real ones.
[20:13:52] <zeeshan> found a motherload of fanuc manuals
[20:14:02] <trentster> jdh: thanks
[20:14:57] <trentster> yeah its a generic chinese 2.2Kw - A real spindle != Budget :P
[20:15:08] <jdh> that's what mine claims also.
[20:15:32] <malcom2073> I need to buy one of them
[20:16:16] <jdh> whatever harbor freight has should be fine.
[20:16:51] <jdh> http://www.omiocnc.com/x6-2200l-3a/ mine looks like the one on the bottom right of that page
[20:22:00] <PCW> zeeshan: the lower the motor speed the larger and heavier it is for the same power
[20:22:19] <zeeshan> why
[20:22:36] <zeeshan> (
[20:22:39] <zeeshan> (more turns)
[20:22:45] <zeeshan> is that why?
[20:22:47] <PCW> because the power limit is mainly I^2 r losses
[20:23:17] <zeeshan> would a 25A peak drive work?
[20:23:26] <zeeshan> cause it has the correct continuous rating
[20:23:34] <zeeshan> but i remember last time you told me, if i want to get more accel
[20:23:38] <PCW> if you double the motor voltage and double the RPM you get twice the output power but not significantly more heat
[20:23:40] <zeeshan> i need a drive that can handle larger peak currents
[20:26:14] <PCW> just imagine running a 300V motor on 600V, you get twice the power at the same torque/current (assuming the insulation/armature, and bearings hold up)
[20:27:12] <PCW> so not significantly more heating (which limits the stall current)
[20:28:00] <zeeshan> because there is more potential to do work
[20:28:02] <zeeshan> right?
[20:28:14] <PCW> yes
[20:28:21] <zeeshan> so less electrons need to flow
[20:28:26] <zeeshan> since each electron has more "charge"
[20:28:31] <zeeshan> (not scientifically accurate)
[20:28:35] <zeeshan> but i think i understand
[20:28:48] <zeeshan> how does peak current come into play?
[20:29:16] <PCW> so like engines, if you want small, light, and powerful, run faster
[20:29:30] <zeeshan> v8 more torque :D
[20:29:34] <zeeshan> at low rpm
[20:29:37] <zeeshan> nice analogy
[20:30:54] <PCW> Do you have the Fanuc drives?
[20:31:09] <zeeshan> yes
[20:31:17] <zeeshan> the spindle driv eis:
[20:31:31] <zeeshan> a06b-6044-h010
[20:31:34] <zeeshan> according to spec sheet
[20:31:40] <zeeshan> that should be a model 8 ac spindle servo unit
[20:31:47] <zeeshan> which is a bit weird
[20:31:49] <PCW> the servo drives are likely analog at that vintage
[20:31:51] <zeeshan> cause it's driving a model 12 motor
[20:32:07] <zeeshan> (a06b-1012-b200)
[20:32:26] <zeeshan> im looking thru the manual
[20:32:47] <PCW> what is the servo drive PN?
[20:32:57] <zeeshan> sec that ill need to check
[20:33:02] <PCW> (X and Z may be different)
[20:37:19] <zeeshan> they are same
[20:37:22] <zeeshan> the motors are same
[20:38:05] <zeeshan> a20b-0009-0320
[20:38:24] <PCW> maybe A06b-6057 drive?
[20:38:36] <zeeshan> im dumb
[20:38:43] <zeeshan> sec.
[20:38:43] <zeeshan> :P
[20:39:03] <PCW> no must be earlier (604x)
[20:39:24] <PCW> 6057 is AC servo but analog
[20:39:49] <PCW> 6058 is first digital interface servo (PWM)
[20:41:36] <zeeshan> a06b-6047-h003
[20:42:19] <zeeshan> wow
[20:42:21] <zeeshan> they are cheap to replace
[20:42:31] <Tom_itx> ancient?
[20:42:59] <zeeshan> http://www.ebay.com/itm/FUJITSU-Fanuc-ltd-Velocity-Control-Unit-A06B-6047-H003-/381436789760?hash=item58cf678400
[20:43:02] <zeeshan> im assuming that stuff on the bottom
[20:43:05] <zeeshan> is the power supply?
[20:43:43] <Tom_itx> looks like a supply
[20:47:35] <Wolf_> looks old, I can smell it looking at the pic
[20:47:55] <zeeshan> honestly
[20:48:02] <zeeshan> after going with completely new parts w/ the mill
[20:48:07] <zeeshan> i wouldnt mind trying to actually retrofit
[20:48:10] <zeeshan> vs recreate
[20:48:20] <zeeshan> i want to go through the experience
[20:48:37] <Tom_itx> do it
[20:48:52] <Tom_itx> i'm sure there's plenty of help around here
[20:48:54] <zeeshan> the recreating was a fun process
[20:49:04] <zeeshan> i hope this one is fun too
[20:49:12] <zeeshan> yes
[20:56:03] <PCW> yeah analog servo drive as far as I know
[20:56:22] <zeeshan> score..................!
[20:56:33] <zeeshan> if you look hard enough
[20:56:34] <zeeshan> you get it
[20:56:38] <zeeshan> http://i.imgur.com/QObqBAY.png
[20:57:08] <PetefromTn_> meh I would just start over man but that's just me
[20:57:23] <zeeshan> PetefromTn_: i did w/ the mill
[20:57:24] <PCW> may have slightly weird power requirements (100 VAC for instance)
[20:57:26] <zeeshan> want to try something diff :P
[20:57:33] <zeeshan> i see rst
[20:57:36] <zeeshan> its likely 3 phase?
[20:57:59] <zeeshan> im really curious to know what the peak output for this driv eis
[20:58:05] <zeeshan> cause i rather just replace it w/ a be25a20ac
[20:58:08] <zeeshan> its way smaller..
[20:58:38] <PetefromTn_> If your existing parts are ANYTHING like how expensive my existing parts were the first time you blow one the novelty of fixing whats there will wear off real quick
[20:58:50] <zeeshan> PetefromTn_: it seems like only the ac spindle drive
[20:58:51] <zeeshan> is expensive
[20:58:54] <zeeshan> the rest are like 200 bux to replace
[20:58:55] <Tom_itx> PetefromTn_, that driver was 89
[20:59:02] <zeeshan> which is cheap
[20:59:08] <zeeshan> the spidnle drive is 3000
[20:59:08] <zeeshan> =/
[20:59:11] <PetefromTn_> for used parts?
[20:59:13] <zeeshan> yea
[20:59:24] <PetefromTn_> well its your machine good luck with it
[20:59:28] <Tom_itx> well the spindle is what matters on that
[20:59:30] <zeeshan> if you didnt know
[20:59:31] <PetefromTn_> you know how I feel ;)
[20:59:36] <zeeshan> my mill is all used parts
[20:59:39] <zeeshan> it had hiccups in the beginning
[20:59:42] <zeeshan> but its reliable now
[20:59:49] <zeeshan> maybe i got lucky
[20:59:55] <Tom_itx> you got one under your belt now though
[21:00:07] <PetefromTn_> I TRIED to fix the original control on my machine
[21:00:08] <zeeshan> i did blow up 2 drives
[21:00:09] <zeeshan> :P
[21:00:18] <PetefromTn_> after blowing several thousand bucks I got REAL tired of it
[21:00:23] <zeeshan> im not keeping the original control
[21:00:26] <zeeshan> im keeping the original drives
[21:00:31] <zeeshan> but 7i77 ofcous!!!
[21:00:34] <zeeshan> <3 mesa!~
[21:00:39] <zeeshan> and linuxcnc baby!!!
[21:00:51] <PetefromTn_> not trying to tell you what to do man its your baby have fun
[21:01:13] <Tom_itx> i'm tellin you to get your tool changer working !!
[21:01:15] <zeeshan> you know whats interesting
[21:01:18] <PetefromTn_> everything fanuc I ever saw was stupid expensive surprised your parts are that cheap
[21:01:20] <zeeshan> the drive has a builtin breaker??
[21:01:45] <PetefromTn_> Tom_itx honestly man that is probably never gonna happen
[21:01:50] <PetefromTn_> the rate I am going here
[21:04:07] <Tom_itx> you'd get more done if you did
[21:04:23] <PetefromTn_> possibly
[21:04:41] <PetefromTn_> but I just don't know enough about this stuff and quite frankly I am afraid to screw up the machine
[21:05:11] <Tom_itx> what sort of motor is on the carousel?
[21:05:17] <Tom_itx> have you tried turning it?
[21:05:32] <PetefromTn_> everything on the carousel is working and implemented into the control
[21:06:22] <PetefromTn_> I have buttons to turn the carousel fwd and backwards
[21:06:38] <PetefromTn_> the only thing it would maybe need is a home switch because it did not come with one
[21:07:46] <trentster> Anyone know offhand what size pvc or silicon water tubing I need for a 80mm Chinese spindle?
[21:10:33] <jdh> mine has some weird clamp down fittings. Needs to fit pretty well.
[21:10:55] <Contract_Pilot> 64 Values My Ass..
[21:10:56] <Contract_Pilot> http://www.stevenrhine.com/wp-content/uploads/2015/10/Ebay-Seller-foursea-Resistors.jpg
[21:11:29] <Contract_Pilot> Only out .99 fast shipping though! http://www.ebay.com/itm/1280-Pcs-64-Values-1-ohm-10M-ohm-1-4W-Metal-Film-Resistors-Assortment-Kit-Set-/191704276261?ssPageName=ADME:X:RRIRTB:US:3160
[21:11:41] <Wolf_> lol
[21:11:45] <Contract_Pilot> All 220K hahaha
[21:12:04] <Contract_Pilot> Got a Stack of 48V PSU's
[21:12:23] <Wolf_> my 2nd 48v showed up today
[21:12:40] <Praesmeodymium> well you can gat a bunch of values with enough 220ihm resitirsin series and parallel
[21:13:09] <Contract_Pilot> the 12V 21A has Rubycon caps in it.
[21:13:23] <Contract_Pilot> Yea,
[21:13:48] <Contract_Pilot> Missing 1 Stepper/Driver.
[21:14:03] <Praesmeodymium> sounds like email time
[21:14:34] <Contract_Pilot> Yep...
[21:15:14] <Contract_Pilot> Out of 8 48V PSU only 3 are diffrent but 48V
[21:15:37] <Contract_Pilot> 7 Came in 1 Amazon Box.
[21:16:53] <Praesmeodymium> holy horder batman
[21:17:33] <trentster> jdh: what about the side that connects to the pump do you remember the inner diameter in mm or inches you are using?
[21:17:35] <Praesmeodymium> sorry my jealousy is seeping out lol
[21:30:09] <PetefromTn_> I wish there was an easy way to speed up my picatinny rail profile program but cutting all those thin slots is just a bitch LOL
[21:35:45] <Contract_Pilot> These 12V 21A are nice and Stable.
[21:35:55] <Contract_Pilot> Will play well with the Ham.
[21:47:52] <Contract_Pilot> Set it at 14V http://www.stevenrhine.com/wp-content/uploads/2015/10/12V-21A-PSU-14V-Stable-1-1024x576.jpg
[21:48:11] <Contract_Pilot> Best quality so far rubycon Caps.
[21:50:59] <PetefromTn_> zeeshan must be rubbing up against his new toy LOL
[21:56:32] <PetefromTn_> I must admit that I would be ;0
[22:58:11] <Contract_Pilot> Little PSU is kicking ass
[22:58:24] <Contract_Pilot> Best one yet so I orderd another!
[23:19:14] <MacGalempsy> welll shit, i got laid off today
[23:21:13] <MacGalempsy> if anyone is awake, let me know how you deel with it
[23:42:02] <d1plo1d> is the a way to set up a CUPS server for LinuxCNC/EMC2?
[23:47:54] <MacGalempsy> well whst shitty day. anyone around to help me out?