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[01:29:07] <aksr> hi guys, one off-topic question, is there some general lathe-related IRC channel?
[01:38:14] <toastydeath> not really
[01:38:32] <toastydeath> linuxcnc is pretty much the only active machining related chat room, irc or otherwise
[01:38:43] <toastydeath> there are a few other smaller ones, but nowhere near as active
[01:39:11] <toastydeath> there are enough machinists (professonal and amateur) in here to answer most general machining questions
[01:39:18] <aksr> toastydeath: well, i have manual lathe, it isn't cnc
[01:39:24] <toastydeath> yep
[01:39:36] <toastydeath> a lot of the people in here have or use manual machines on a regular basis
[01:39:45] <aksr> nice toastydeath
[01:40:04] <aksr> i have a problem with power feed
[01:40:54] <toastydeath> is this a shaft driven power feed or a servo power feed
[01:41:07] <toastydeath> (i.e. does the feed take power off a shaft coming from the headstock)
[01:41:13] <aksr> it clicks, as if it's stucked
[01:42:19] <toastydeath> when you try to engage it?
[01:42:23] <aksr> toastydeath: i'll find it, just a sec, it's an old lathe (but fairly preserved)
[01:43:05] <aksr> toastydeath:
http://www.wotol.com/1-stankoimport-manual-center-lathe-max-2400-u-min-/second-hand-machinery/prod_id/254846
[01:43:34] <toastydeath> unfortunately the only way to really troubleshoot those kinds of problems is to pop the front of the apron off
[01:43:39] <toastydeath> and look at the drive gear
[01:43:54] <toastydeath> it's likely a sheared off drive lug somewh ere
[01:44:32] <aksr> toastydeath: let me tell you the symptoms:
[01:45:10] <aksr> if i engage leadscrew, it works-in a both directions
[01:45:29] <aksr> if i engage power feed, sometimes it works, sometimes is not
[01:46:00] <aksr> but if the leadscrew is engaged, power feed should turn easily by hand, right?
[01:46:15] <toastydeath> "should turn easily by hand?"
[01:46:49] <aksr> toastydeath: i mean, it should be possible to turn it easily?
[01:47:00] <aksr> i read that somewhere
[01:47:10] <toastydeath> uh, i see no particular reason why that would be true
[01:47:30] <aksr> well, it's disengaged
[01:47:43] <toastydeath> but the bottom line is that a lathe is not like a car
[01:47:48] <toastydeath> you cannot diagnose it from external symptoms
[01:47:54] <aksr> sure
[01:47:58] <toastydeath> there is too much inside the headstock and apron to tell
[01:48:13] <toastydeath> you'll have to carefully disassemble the apron to see what's sheared off
[01:49:13] <aksr> toastydeath: it doesn't seem that something is sheared off, not as much as if something is stuck
[01:49:39] <toastydeath> you would be surprised - nearly every mechanical problem inside a power feed is the result of something breaking off.
[01:49:47] <toastydeath> no matter how bizarre or unrelated the symptoms are.
[01:49:56] <toastydeath> either way, you have to open it up. guessing helps nobody.
[01:50:19] <aksr> power feed has some fail safe protection
[01:50:28] <aksr> and it `clicks'
[01:52:04] <aksr> (i'm trying to find a picture of it)
[01:52:19] <toastydeath> i'm confused - you have to open it up
[01:52:32] <toastydeath> discussing it is useless, because it's all guessing.
[01:52:40] <aksr> i know, i was afraid of that :)
[01:53:18] <aksr> toastydeath: is it hard?
[01:53:31] <toastydeath> nobody knows until it's open
[01:53:34] <toastydeath> every lathe is different
[01:53:47] <toastydeath> the powerfeeds on some are ridiculous - like on a american pacemaker
[01:53:49] <toastydeath> others are dead simple
[01:54:21] <toastydeath> take lots of pictures, use ice cube trays and notecards to document where bolts came from
[01:54:40] <toastydeath> and have a notepad that describes everything you do
[01:54:52] <toastydeath> if you get frustrated, walk away
[01:54:57] <toastydeath> that's really all you can do.
[01:55:22] <aksr> the thing that bothers me the most is, i just got it
[01:55:34] <aksr> i didn't do anything (i think)
[01:56:08] <aksr> toastydeath: ok, thank you, i'll try ;)
[01:56:14] <toastydeath> goodf luck
[01:56:17] <toastydeath> *good
[01:56:19] <aksr> :)
[01:56:45] <aksr> i'll report my findings :)
[04:04:48] <Tom_itx> cmorley, my dos ver was 7.0
[04:05:29] <Tom_itx> freeform is 4.61
[04:05:35] <Tom_itx> windows
[04:06:02] <Tom_itx> under new management (Camax Mfg) not Point Control
[04:27:53] <RyanS> I always return to this website for a laugh
http://www.micro-machine-shop.com/Micro-Machine-Shop_Photo_Gallery.htm I think he spends most of his time collecting and categorising tools
[04:30:05] <archivist> one of those horrible round column mills...avoid
[04:32:30] <archivist> photography good, all on one page bad
[04:35:07] <RyanS> … The irony of having a round column mill and more cutting tools than an industrial workshop
[04:35:53] <archivist> I had one before I knew better, managed to get rid
[04:41:37] <RyanS> I still debating that whether I really want to convert a manual to cnc it just seems everyone thinks it's easy until they need higher rpm, then they need to upgrade the bearings, is it going to really save that much money tha turnkey
[04:42:34] <archivist> web fail
http://www.micro-machine-shop.com/mensuration_instruments.htm is 22 MB and has 230 resources
[04:45:42] <RyanS> Honestly could not be bothered taking pictures of my stuff and posting to the interwebs
[04:45:57] <RyanS> I would rather build stuff with it
[04:46:39] <archivist> good pictures can explain a lot
[04:48:08] <RyanS> Yes pictures of the actual process of building things are good
[04:48:47] <archivist> he has the best pictures of just about any site I have seen, just a web fail in page size and repeating the same pics
[04:54:52] <RyanS> Isn't timber a really bad material for storing cutting tools. Rust
[04:55:53] <DJ9DJ> moin
[05:27:45] <jesseg> Howdy Folks... :P
[05:45:29] <jthornton> hi
[06:16:20] <archivist> toy 271253005039
[06:39:44] <jthornton> what is the common pitch for M3 taps?
[06:40:03] <jthornton> 0.6 or 0.5?
[06:41:46] <archivist> coarse or fine series :)
[06:42:06] <jthornton> same as M6x1 series
[06:42:21] <jthornton> M8x1.25
[06:42:42] <jthornton> M5 x 0.7
[06:43:07] <jthornton> opps M4 x 0.7
[06:43:31] <archivist> .5 mm in the first table I see here
[06:43:48] <jthornton> is M3 a common screw size over there?
[06:43:54] <archivist> 3.5 is .6
[06:44:12] <archivist> reasonably common yes
[06:44:31] <jthornton> ok thanks
[06:45:22] <archivist> this table has 1.6.1.8 2 2.2 2.5 3 3.5 4 4.5 5 6 and on
[06:45:41] <archivist> ISO metric coarse
[06:45:59] <archivist> circa 1980
[06:47:51] <jthornton> http://littlemachineshop.com/Reference/TapDrillSizes.pdf
[07:00:02] <Jymmm> What does it mean by 75% and 50% thread?
[07:00:52] <Jymmm> jthornton: ^^^^^
[07:01:27] <archivist> amount of engagement
[07:02:03] <jthornton> for softer materials you use 75% thread and for harder materials you use 50% thread
[07:02:41] <Jymmm> archivist: over the length of the threads, or the "gap" between the "nut" and the "bolt" threads?
[07:03:22] <jthornton> archivist,
http://linuxcnc.org/index.php/english/forum/20-g-code/26853-free-program-to-make-gears--sprockets#37584
[07:04:37] <Jymmm> Is there such a thing as 100% thread?
[07:04:57] <Jymmm> or just 99% ?
[07:05:14] <archivist> 100% may bind
[07:05:40] <jthornton> 100% works fine on plastics
[07:05:51] <archivist> 99% may seize if some dust gets in the thread
[07:05:55] <Jymmm> archivist: like putting a 0.500" round stock in a a 0.500" hole?
[07:06:25] * Jymmm found that does not work the hard way once =)
[07:07:23] <archivist> jthornton, ew windaz
[07:07:31] <jthornton> you can put 0.501 stock in a 0.500 hole, it just takes more force
[07:07:40] <jthornton> ;yea I noticed that :(
[07:07:41] <archivist> press fit
[07:08:43] <Jymmm> you could use wine to run it *shrug*
[07:09:01] <archivist> jthornton, who needs a download :)
http://www.archivist.info/gear/
[07:09:36] <archivist> I dont use that any more anyway
[07:10:24] <jthornton> you do it by hand now?
[07:10:47] <archivist> its built in to the gcode
[07:11:11] <archivist> o codes and subroutines
[07:15:04] <jthornton> nice
[07:17:05] <archivist> I tend to be cutting some odd form so am just adjusting the depth and cut length and tooth count variables after some touch off
[07:26:23] <Tom_itx> force or heat
[09:03:23] <syyl--> [1351:52] * Jymmm found that does not work the hard way once =) <-- hammer to small? ;')
[09:44:21] <PetefromTn> mornin' everyone..
[10:08:40] <jdh> how's things over there?
[10:09:18] <jdh> anyone ever seen/used/heard-of an Acer 13x40 lathe?
[10:10:20] <PetefromTn> Never heard of an acer but probably is an asian 13x40 similar to my 12x36..
[10:10:49] <jdh> 3hp? single phase?
[10:11:19] <PetefromTn> http://www.youtube.com/watch?v=T-hCGaXph-o
[10:11:21] <Tecan> (T-hCGaXph-o) "Acer 13" x 40" Gap Bed Geared Head Engine Lathe - #1340G Reliable Tools" by "HumanAfterAll101" is "Tech" - Length: 0:00:56
[10:11:42] <PetefromTn> probably never had one. Mine is 2hp single phase gear head
[10:11:42] <jdh> I saw that one last night
[10:12:10] <jdh> http://wilmington.craigslist.org/tls/3971112833.html
[10:12:47] <jdh> I assume his 6.5" is a marketing 13" and I didn't see any 13x36, just 13x40
[10:13:12] <PetefromTn> Its probably a 12x36 with a gap bed like mine.
[10:13:23] <jdh> the "great for light duty machining, deburring, polishing" seems odd.
[10:13:40] <PetefromTn> I have owned this machine for almost a decade and it STILL works great.
[10:13:54] <PetefromTn> He might be used to some heavy duty lathes....
[10:14:10] <jdh> do you ever remove the gap piece?
[10:14:13] <PetefromTn> In the world of REAL lathes this is a puny machine LOL but it is still HUGE compared to a mini lathe
[10:14:21] <PetefromTn> yup
[10:15:12] <jdh> HF seems to sell a 12x36 and a 12x37
[10:15:19] <PetefromTn> says it is three phase..
[10:15:38] <PetefromTn> yeah the 12x37 is a belt drive I believe.
[10:16:07] <jdh> they both say gear head
[10:16:24] <PetefromTn> Hmm.. Maybe it is grizzly I am thinking of...
[10:17:01] <PetefromTn> http://www.grizzly.com/outlet/12-x-37-Belt-Drive-Gap-Bed-Lathe/G9249
[10:23:21] <PetefromTn> Well gotta get back to cabinet work now..Talk later.
[10:58:58] <CaptHindsight> jdh:
http://www.aceronline.net/
[11:00:10] <CaptHindsight> http://www.aceronline.net/acergroup/el-dyn1340g.htm might be an older version of this
[11:01:43] <jdh> That might be ok for $1000
[11:01:52] <CaptHindsight> http://www.aceronline.net/acergroup/el-el1440v.htm
[11:02:05] <CaptHindsight> lots of dealers
[11:04:30] <CaptHindsight> jdh:
http://www.practicalmachinist.com/vb/general/anyone-have-experiance-acer-engine-lathes-248798/
[11:09:44] <jdh> wonder if I could disguise it for a while so my wife doesn't notice.
[11:16:52] * JT-Shop notes 13.75 miles is too far at 80F with 85% humidity
[11:17:58] <jdh> wow, cool and low humidity. Sounds nice!
[11:19:50] <jdh> looks like it's only 75% here, but it is 90F. 'feels like 103'
[11:44:28] <andypugh> 24C (75F) and 45% here. That classes as "pleasant" to me.
[11:47:26] <jdh> I got a 24000 BTU air conditioner for my garage 'shop' It does wonders for summer.
[11:48:21] <kwallace2> andypugh: What is your annual rain fall there?
[11:48:47] <andypugh> Enough?
[11:49:38] <andypugh> Wikipedia says 23 inches a year.
[11:50:44] <Loetmichel> andypugh: that IS pleasant!
[11:51:02] <archivist> sufficient to too effin much
[11:51:24] <Loetmichel> 20°c would be even more pleasant for a workshop, but better than 38°c++
[11:51:48] <kwallace2> Yikes, that seems pretty dry. I get 30 inches and it seems like I'm in a dessert. Gardening is a real challenge.
[11:52:07] <andypugh> I am happy with 24C at the moment as I have a batch of wine fermenting in the cormer.
[11:54:30] <Loetmichel> andypugh: over here we had 636mm rain on the square meter last year
[11:55:15] <andypugh> Essex is pretty dry.
[11:57:46] <Loetmichel> essex: isnt taht nearly in the highlands?
[11:57:55] <Loetmichel> ir is my geography SO bad?
[11:58:32] <archivist> that is bad geography 1/10
[11:59:35] <Loetmichel> hmm
[11:59:39] <jdh> we get about 5ft here.
[12:02:32] <jthornton> http://www.mapmyride.com/workout/353389897
[12:03:49] <jdh> in that context, yes, it is to much!
[12:04:37] <jthornton> I hit the wall sometime after 12 miles and my speed dropped way off
[12:07:00] <IchGuckLive> hi all B)
[12:15:29] <jdh> I can't find any place local to buy an XL timing belt.
[16:52:20] <NickParker> andypugh: ok, i'll track down a cheap gpu then.
[16:53:16] <andypugh> Try software-only open-gl first, and other things on the Wiki "Troubleshooting" page
[18:18:23] <Nick001-Shop> Have a G76 problem G76 P0.0466 Z-0.560 I0.054 J0.006 K0.027 H3 R2 Q29.5 E0.060 L2 gives me an unknown word where unary operation could be. Program snipit and hal file at
http://pastebin.com/Ngxxv93L
[18:18:58] <Nick001-Shop> any help would be nice
[18:20:22] <Nick001-Shop> I'm also reading The pins motion.spindle-at-speed and the encoder.n.phase-Z for the spindle must be connected in your HAL file before G76 will work. I'm not real sure I have them operating.
[18:30:44] <cradek> Nick001-Shop_: that g76 command runs fine for me, so either your error comes from a different line or you have a transcription error of some kind
[18:31:15] <cradek> I'm running sim/axis/lathe
[18:33:30] <cradek> Nick001-Shop: ^
[18:35:01] <andypugh> The error is GO X0.500 Z1.5
[18:35:43] <cradek> haha I didn't even see that
[18:37:31] <andypugh> It's always easier to see the errors you frequently make yourself
[18:40:44] <Nick001-Shop> do I need a G80 to cancell G76?
[18:40:53] <cradek> no
[18:41:19] <Nick001-Shop> then what?
[18:41:27] <cradek> did you not understand what andypugh said? you have GO when you need to have G0
[18:41:34] <andypugh> But you do need to use "0" for zero an d "O" for o.
[18:42:08] <Nick001-Shop> Ok now i got it -) Ill go try it
[18:56:06] <Nick001-Shop> That fixed the error - now it goes to the initial x and z position and make a x move about 0.1 and stops. I'm trying to cut a 5/16-24 thread and obviously have someting wrong
[18:56:23] <cradek> if it doesn't go, your spindle feedback is wrong
[18:56:43] <cradek> at-speed is missing, or index-enable isn't working, or it isn't counting in the right direction
[18:57:31] <Nick001-Shop> P0.0466 should be P0.04166
[18:58:02] <cradek> I promise that's not what's making it not go
[19:01:27] <andypugh> motion.spindle-revs might not be connected.
[19:02:39] <andypugh> <looks at hal file> How quaint! It's all newsigs and linksps. Where did that come from?
[19:03:12] <cradek> if that's the extent of your hal, looks like you don't have your spindle position stuff hooked up at all.
[19:03:25] <cradek> go ahead and finish that before you try threading :-)
[19:05:57] <andypugh> I am not sure that motion.spindle-speed-in want the RPM value, isn't that meant to be RPS direct from the encoder?
[19:07:42] <Nick001-Shop> came from pico and I sort of know it isn't right because I had to mess with some of the settings to get feed rates work work right.
[19:09:01] <Nick001-Shop> can someone go thru the hal file and find the errors? I sort of get lost in there.
[19:09:19] <andypugh> net spindle-revs-in ppmc.0.encoder.03.velocity => motion.spindle-speed-in
[19:09:52] <Nick001-Shop> is that a line for me to add to hal?
[19:09:52] <andypugh> net spindle-pos ppmc.0.encoder.03.position => motion.spindle-revs
[19:10:49] <andypugh> net spindle-index-enable motion.spindle-index-enable <=> ppmc.0.encoder.03.index-enable
[19:11:09] <andypugh> Those three lines are what you want.
[19:11:29] <andypugh> You might need to remove other lines that conflict.
[19:12:29] <Nick001-Shop> ok -I'll go try them - conflicts I sort of know how to resolve them - Thanks
[19:13:13] <andypugh> For example, if you want to keep the spindle RPM calculation then you would have to net spindle-revs-in mult2.0.in0 and delete line 199 in the pastebin
[19:15:58] <Nick001-Shop> anything else to delete that you can see right off?
[19:16:54] <cradek> that'll affect fpr but not threading, which uses the spindle POSITION
[19:18:18] <andypugh> Goodnight chaps. Good luck with the threading Nick001
[19:18:25] <cradek> g'night andy
[19:20:23] <andypugh> Ah, just a quicky. There are some motion pins here:
http://www.linuxcnc.org/docs/html/man/man9/motion.9.html listed as "debug only, likely to be removed" . At least some of them almost certainly want to be permanentised, for example joint-vel-cmd for FF1 calculations in PID.
[19:21:57] <cradek> go to bed dude
[19:22:15] <cradek> (I've never seen us remove any pins like that)
[19:32:30] <Nick001-Shop> Ok - it treads except backwards - something wrong in the g76 line. Will have to check out if it changed fpr settings which need to be corrected anyway. Thanks for the help and I'll be back at it tomorrow. Time to go home.
[19:33:41] <Nick001-Shop> threads
[19:33:48] <cradek> in sim, I noticed it cuts an inside thread
[19:39:30] <Nick001-Shop> it also finishes in the -z position rather than the z0.200 position
[19:40:59] <Nick001-Shop> also, how do I get into sim mode on the machine computer without disturbing anything?
[19:56:35] <NickParker> sweet, i got an old matrox card off an IT friend. stopping by later this week.
[20:42:54] <os1r1s> I'm planning to cut grooves with a .062" carbide grooving tool in a 3/4 inch piece of 6061 on a sherline lathe. The groove is going to be .1" deep. Does anyone have any suggestions on feeds/speeds?
[23:17:07] <NickATX> what program can I use for cnc with Mac iOS ???
[23:51:32] <Xfriend> who have a cnc machine running on Mac ???
[23:52:16] <CaptHindsight> Mac or iPhone/pad?
[23:52:30] <Xfriend> iOS
[23:58:08] <Xfriend> Mac