#linuxcnc | Logs for 2013-10-11

[00:41:23] <MacGalempsy> anyone in here a linuxcnc admin on the website?
[01:36:31] <archivist> MacGalempsy, JT when he is awake
[01:37:06] <archivist> also andypugh but he wont be around till 6pm ish my time either
[05:16:01] <jthornton> morning
[05:37:41] <MacGalempsy> morning
[05:38:26] <MacGalempsy> jthornton: you are admin on linuxcnc website? I am trying to figure out how I messed up to not get any registration emails
[05:39:09] <jthornton> aye
[05:39:32] <jthornton> I just sent you another one, check your spam folders
[05:40:32] <MacGalempsy> strange that one made it through
[05:40:51] <MacGalempsy> thanks!
[05:41:13] <jthornton> np I wonder why sometimes the emails fail to get received
[05:41:54] <jthornton> and now I see your confirmed, welcome to the forum
[05:42:40] <MacGalempsy> thank you. it is nice to be part of the community.
[05:43:24] <MacGalempsy> been reading up on this week on doing a conversion. next week the machine arrives and i'll take a stab at conversion
[05:58:23] <MacGalempsy> any ideas about how much air is required to run an ATC?
[06:00:07] <jthornton> what machine is it?
[06:00:31] <MacGalempsy> a benchman xt
[06:00:36] <MacGalempsy> light maching corp
[06:01:32] <jthornton> never seen one like that before
[06:01:50] <jthornton> does the tool changer use an air motor?
[06:01:51] <MacGalempsy> it just says 90psi in the manual
[06:02:38] <MacGalempsy> basically trying to size a small compressor to put into the stand
[06:03:30] <jthornton> if it does not list the cfm it's hard to guess
[06:03:38] <MacGalempsy> there are a couple of noiseless that will put out about 1 scfm,
[06:04:46] <jthornton> my VMC uses air to blow chips out of the spindle and to release the tool but nothing else, my lathe uses air for nothing and lots of it
[06:05:00] <MacGalempsy> hah
[06:05:09] <MacGalempsy> brb
[06:21:31] <MacGalempsy> and....im back
[06:21:38] <_DJ_> wb
[06:21:42] <MacGalempsy> ty
[06:23:05] <MacGalempsy> so going through the manual, I was able to determine a mystery to me that the spindle is ac servo. I ordered a mesa 5i25 and 7i77 but think there will need to be one more card for the spindle control?
[06:23:19] <MacGalempsy> any direction?
[06:39:07] <archivist_herron> a vfd
[06:40:21] <MacGalempsy> everything should be in the case already, so I am really just needing to make sure the controller card and daughter card can handle it
[06:56:51] <jthornton> my average speed is 6.5 MPH in the last 400 miles on the mountain bike
[07:05:21] <Jymmmm> Avg walking speed... 7 MPH.
[07:06:27] <Loetmichel> 7mph?
[07:06:41] <Loetmichel> i have 7kmh as average waking in my ear
[07:06:52] <MacGalempsy> 7mph is a fast walk, right?
[07:07:06] <Loetmichel> s/ in my ear/have heard
[07:07:25] <Loetmichel> MacGalempsy: thats more like a slow (marathon) run
[07:07:30] <jthornton> this is not riding on flat ground!
[07:08:12] <Jymmm> 3mph
[07:08:39] <jthornton> sometimes up hill yes
[07:08:54] <Jymmm> http://upload.wikimedia.org/wikipedia/commons/4/4f/Blender3D_NormalWalkCycle.gif
[07:09:24] <Loetmichel> hrhr, my avg bike speed is more like 10 mpk... but on more or less flat ground ;-)
[07:10:30] <MacGalempsy> yeah, because I remember on a roadbike as a kid, I would get an average of 15-16, but could get up to 30
[07:11:30] <jthornton> the guys around here break the speed limit on road bikes
[07:11:48] <jthornton> that is just too fast
[07:13:39] <jthornton> http://www.mapmyride.com/workout/405706945
[07:13:54] <jthornton> you can see the elevation change there
[07:15:03] <Loetmichel> http://www.sports-tracker.com/#/workout/loetmichel/61bq0thbiqmb59vu
[07:15:12] <jthornton> http://www.mapmyride.com/workout/374323701
[07:15:32] <Loetmichel> <- untrained bloke, std city bike
[07:16:30] <jthornton> nice ride, is it on city streets?
[07:17:22] <jthornton> I'm not trainable either
[07:19:19] <Loetmichel> city streets, yes
[07:20:05] <MacGalempsy> well gents. its time to go. have a good day. see you in a bit.
[07:20:20] <jthornton> well time for my daily ride
[07:21:08] <Loetmichel> JT_Shop_: this bike: (200 eur from discount superstore in germany) -> http://www.cyrom.org/palbum/main.php?g2_itemId=11339
[07:21:17] <Loetmichel> jthornton
[07:22:08] <Loetmichel> it after my doc said that i have to do some cardio... did no more than a few rides in the last two years ;-)
[07:22:14] <Loetmichel> bought
[07:30:00] <Jymmm> HAHAHAHAHAHAHAHA http://img.dxcdn.com/productimages/sku_250555_8.jpg
[07:36:28] <Loetmichel> Jymmm: enternein me: whats so funny on that picture?
[07:36:36] <Loetmichel> s/emtertein/educate ;-9
[07:37:08] <Jymmm> Loetmichel: one person water bag
[07:37:14] <_DJ_> hm
[07:37:19] <_DJ_> what is it good for?
[07:37:36] <Jymmm> Loetmichel: it's a summer sleeping bag
[07:38:12] <Jymmm> that's water resistant.
[07:39:28] <_DJ_> hm
[09:17:14] <JT_Shop> http://imagebin.org/273378
[09:17:23] <JT_Shop> Loetmichel, you have funny handlebars
[09:17:50] <JT_Shop> Jymmm, that is a view down the trail I ride
[11:58:10] <Jymmm> JT_Shop: purrrrdy =)
[11:58:37] <Jymmm> JT_Shop: is that on your 9 acres?
[12:04:12] <JT_Shop> no
[12:04:36] <Jymmm> ah
[12:10:02] <IchGuckLive> hi all B)
[12:17:37] <JT_Shop> Jymmm, http://data.ecosystem-management.org/nepaweb/nepa_project_exp.php?project=33314
[12:18:39] <Jymmm> waiting for USDA
[12:20:27] <IchGuckLive> trail is always good today i did the flyers to the trail as every week and all 100 per week have been gone
[12:20:49] <Jymmm> Geeeze, that's a LOT of javascript for such a simple page.
[12:21:09] <jdh> JT: do you use clips for trails?
[12:21:27] <Jymmm> pants clips?
[12:22:38] <jdh> pedal clip, or clipless pedals. vs. flat pedals
[12:22:47] <Jymmm> ah
[12:24:55] <IchGuckLive> http://www.mountainbikepark-pfaelzerwald.de/ this is the trail side
[12:25:16] <IchGuckLive> here is the tour flyer http://www.mountainbikepark-pfaelzerwald.de/fileadmin/dokumente/PDF/flyer_2012_2.pdf
[12:27:00] <jthornton> no, I have regular pedals
[12:27:01] <IchGuckLive> my control area is track 1 2times a week filling up the yellow mart info points soth to Clausen and leimen
[12:27:07] <_DJ_> hi IchGuckLive
[12:27:13] <IchGuckLive> i also run regular dadels
[12:27:21] <IchGuckLive> hi DJ
[12:28:26] <jthornton> that's some serious biking
[12:28:30] <_DJ_> do you have snow, IchGuckLive?
[12:28:50] <IchGuckLive> no it has been snowing but nothing on the road
[12:29:27] <IchGuckLive> jthornton: the National team and the tour de france team is training here
[12:29:30] <_DJ_> oh, nice. here it is only raining all the day
[12:29:55] <Jymmm> http://dx.com/p/4-channel-24v-opto-isolator-relay-module-w-high-level-trigger-blue-234195
[12:30:58] <IchGuckLive> Jymmm: nice but why not rag stacked ones
[12:31:10] <Jymmm> ?
[12:36:03] <IchGuckLive> Jymmm: i fond one on ebay http://www.google.de/imgres?sa=X&biw=1221&bih=885&tbm=isch&tbnid=XKOn6VcK-LdV9M:&imgrefurl=http://www.ebay.com/sch/i.html%3F_kw%3Drelais%2Bv%2Bfinder&docid=RcQtZnu9vnOsbM&imgurl=http://thumbs3.ebaystatic.com/d/l225/m/mGIaDava7y5827VrBMiu6Qw.jpg&w=225&h=193&ei=JzNYUrmuL8bE0QWukoCQDg&zoom=1&iact=hc&vpx=544&vpy=349&dur=4249&hovh=154&hovw=180&tx=76&ty=101&page=1&tbnh=132&tb
[12:36:05] <IchGuckLive> nw=161&start=0&ndsp=43&ved=1t:429,r:20,s:0,i:148
[12:36:14] <IchGuckLive> Sorry guys
[12:36:52] <Jymmm> $16 for ONE relay
[12:37:06] <IchGuckLive> ni its 1.5USD
[12:37:39] <IchGuckLive> it can be powerd by 5V 12V and 24V relay
[12:37:45] <IchGuckLive> it is 12mA
[12:37:52] <IchGuckLive> internal safty diod
[12:38:12] <IchGuckLive> and best is the socket is the same
[12:38:30] <IchGuckLive> so it looks industrial from C12 to the mashine
[12:38:40] <jthornton> IchGuckLive, I'm on the oldfatguys team here
[12:38:43] <Jymmm> IchGuckLive: Show me $1.50 USD http://www.ebay.com/sch/i.html?_kw=relais+v+finder
[12:45:04] <IchGuckLive> Jymmm: sorry it wars the print socket finder 93.11 that has been 1,6Euros i rememberd
[12:45:22] <IchGuckLive> http://www.reichelt.de/Relaissockel/FIN-93-11/3/index.html?&ACTION=3&LA=2&ARTICLE=101582&GROUPID=3296&artnr=FIN+93.11
[12:45:48] <Jymmm> ah
[12:46:17] <IchGuckLive> http://www.reichelt.de/Koppelrelais/FIN-38-51-24V/3/index.html?&ACTION=3&LA=2&ARTICLE=28317&GROUPID=3295&artnr=FIN+38.51+24V its 8.10 Euros
[12:46:24] <IchGuckLive> BAD
[12:46:47] <IchGuckLive> jthornton: im also therfor im the control guy not the runner up
[12:48:05] <IchGuckLive> Jymmm: its good stuff as you can change the relay to 3 Voltige and also see the led light on the socketfor kontrol
[12:52:44] <IchGuckLive> jthornton: http://www.youtube.com/watch?v=VycIYEElcU8 thats where i live in the middle of the forestv
[12:53:02] <Jymmm> IchGuckLive: Sure, but what I linked to is 24V opto isolated with LED all on one pcb for $7,
[12:53:17] <IchGuckLive> agree
[12:53:34] <IchGuckLive> the board is well designed
[12:53:48] <IchGuckLive> and fits all the needs
[12:54:25] <Jymmm> quality is another matter =)
[12:55:44] <IchGuckLive> i use the finder for one reason its industrial standard it is a quick change it is safty led controled it is both way C12 to mashine 5V and ,ashine 24V to C12
[12:59:09] <IchGuckLive> Jymmm: it shoudt be a 5 Relay pcb 24V to get all the inputs to the parport
[13:00:33] <IchGuckLive> Deskproto new Release is out
[13:35:22] <IchGuckLive> by have a nice milling suturday !!
[13:36:58] <ReadError> crap i forgot to teach him 'bye' this time
[13:44:04] <jdh> next time.
[15:07:49] <probotix> hey guys
[15:08:37] <probotix> i've been trying to join a conversation on the users list all day
[15:09:23] <probotix> is there anyone who can help me find out why my emails never show up?
[15:13:48] <cradek> are you subscribed from the exact address you're sending from?
[15:15:52] <JT_Shop> they may not show up in your mail box, depending on a setting IIRC
[15:17:30] <cradek> probotix: maybe you should give more information
[15:24:12] <probotix> i get all of the emails, and i have sent emails to the list successfully in the past
[15:24:32] <probotix> i am watching my server logs and they aren't being rejected as far as i can tell
[15:24:58] <probotix> yes - same exact address
[15:25:29] <probotix> years ago i was getting bounced for not having a postmaster account, but i just checked and that account is still working fine
[15:38:12] <mrsun_> http://imagebin.org/273414 done V grooving in alu, tho the pice is not cleaned up there the rugged surface in the bottom of the cuts are chips that needs to be removed =) atleast i can do V groving in alu with the machine =) also face milled a piece with a 19mm cutter with it :P
[15:48:04] <cradek> probotix: what's your subscribed email?
[15:58:11] <probotix> len@probotix.com
[15:59:01] <probotix> in my testing, i signed up under an alternate email and sent again - took those messages ~1.5 hours to get through
[16:01:43] <Jymmm> Can anyoen think of a way to replicate the top of these batteries sticks (that's both pos and neg) http://www.amazon.com/Streamlight-Battery-Stick-Stinger/dp/B007TN6YG0 Its proprietary where both the pos and neg are on the same end of the battery
[16:13:51] <_DJ_> gn8
[16:27:22] <cradek> probotix: you are subscribed with that address and I don't see anything wrong. The last message I got from you was on 7-Oct-2012
[16:28:43] <cradek> probotix: try sending me an email directly at chris@timeguy.com
[16:28:57] <cradek> probotix: if you are sending from that address, it should go to the list -- otherwise you should get a bounce
[16:29:04] <cradek> probotix: if neither is happening we've got a mystery
[16:32:28] <cradek> probotix: forward->reverse->forward on your MX gives me a name that doesn't resolve: vps.lunarpages.com
[16:35:12] <cradek> I don't know whether that's the problem (I have no access to sourceforge's logs) but it's weird
[16:37:48] <andypugh> Jymmm: Are they all the same voltage regardless of length by any chance?
[16:38:26] <Jymmm> andypugh: No, but it's the physical contact that is propritary
[16:38:44] <Jymmm> andypugh: They use SUB-C Ni-Cads
[16:39:24] <Jymmm> andypugh: Nice flahlight, suck batteries
[16:39:41] <andypugh> In that case, is the outer shrinkwrap in three layers?
[16:39:59] <andypugh> (insulator, conductor, insulator?
[16:40:11] <Jymmm> andypugh: I want to use an 18650 battery instead, but still be able to charge it by poppoing the flashlight in it's craddle
[16:40:15] <andypugh> And isn't NiCd a bit 1980s?
[16:40:24] <Jymmm> andypugh: EXACTLY
[16:40:51] <andypugh> The connector seems easy. Do you have a lathe?
[16:40:51] <Jymmm> andypugh: it's how they keep ppl around
[16:40:58] <Jymmm> no
[16:41:03] <Jymmm> no mill
[16:41:06] <Jymmm> laser =)
[16:41:12] <andypugh> Well, buy a lathe..
[16:41:18] <Jymmm> lol
[16:41:21] <Jymmm> ok
[16:41:48] <Jymmm> If I could punch some dbl sided PCB, that might work
[16:41:55] <Jymmm> but no punch that big
[16:42:10] <andypugh> https://picasaweb.google.com/lh/photo/8hEPrpkf9lYayE3O0-evI9MTjNZETYmyPJy0liipFm0?feat=directlink
[16:43:48] <andypugh> The one on the right is a bit of brass pushed into the middle of a cylinder of delrin pushed into the middle of a magnet. The one on the left is a spring-loaded contact with an air gap in the middle of another magnet.
[16:44:08] <andypugh> You don't have to use magets, of course.
[16:44:30] <Jymmm> andypugh: If I could find a 7/8" punch for this, it be perfect http://www.grizzly.com/products/Portable-Hand-Punch/G8780
[16:44:54] <Jymmm> err dies
[16:46:37] <andypugh> I don't think a Q-max will work for PCB material
[16:47:03] <Jymmm> q=max?
[16:47:07] <Jymmm> q-max?
[16:47:22] <andypugh> But you can muss-use both a mill and a Q-max like this: https://picasaweb.google.com/lh/photo/dcMYYJN_kaO9LC8BNrlsK9MTjNZETYmyPJy0liipFm0?feat=directlink
[16:47:55] <Jymmm> http://www.grizzly.com/search/search?q=punch%20dies&cachebuster=7273532384545175
[16:48:02] <andypugh> Q-max: http://www.ebay.com/itm/Q-Max-Sheet-Metal-Punch-24mm-/121159870806
[16:49:21] <andypugh> Square Q-max http://www.ebay.co.uk/itm/Q-Max-Square-Sheet-Metal-Punch-19mm/231053893717
[16:50:09] <andypugh> Basically you drill a hole, put the bolt through, assemble the punch and die and tighten the nut. Great things. They do D-sub cutouts and all sorts.
[16:51:17] <andypugh> http://en.wikipedia.org/wiki/Knockout_punch
[16:53:30] <andypugh> No help with your problem. I mean no help with todays specific problem. But worth knowing about.
[17:12:15] <MacGalempsy> andypugh: after looking more into one of the manuals, I found that the spindle is controlled by an AC servo. With the 5i25 and 7i77 be enough to run this, or will I need to order another controller card?
[17:14:52] <MacGalempsy> dang got to check out for the weekend. i'll check back in on sunday night. have fun!
[17:15:20] <andypugh> You give me 120 seconds to answer? Bah!
[17:21:22] <andypugh> Is it just a UK thing that NGLI 3 grease is hard to find? Nobody seems to bother selling anything except grade 2. (try finding a grease that doesn't have a "2" in the name, like "EP2")
[17:23:43] <kwallace2> andypugh: Do you have your Delon part list handy?
[17:24:02] <kwallace2> 100 sec , 90 sec. ...
[17:25:03] <andypugh> I am not sure I even have a Delon parts list.
[17:25:28] <kwallace2> Oh I thought you made a voltage doubler.
[17:25:47] <andypugh> Ah, yes, I did. But I just used what I had to hand.
[17:26:39] <kwallace2> I'm wondering if I should use AC run caps, the diodes should be easy to determine.
[17:27:15] <andypugh> My fattest diodes and my biggest caps, I think :-) Oh, and a fuse and NTC device as a nod to safety.
[17:27:16] <kwallace2> Is there an easy way to figure out how big the caps should be?
[17:27:42] <andypugh> They should probably be sized to the acceptable ripple.
[17:28:31] <andypugh> So load-dependent, and then you might need to consider ESR. I only got as far as building a test circuit, measuring 700V DC and getting scared.
[17:33:50] <kwallace2> Okay, I'll post my results... if I survive. I have a cheap VFD on the way. I need to put a Digikey order together, but only takes a couple of days to get here.
[17:33:56] <kwallace2> Thank you.
[17:35:03] <andypugh> The thing is, all you wlll get is what comes out of my mains anyway :-)
[17:38:48] <kwallace2> I thought there might be a particular type of capacitor, but I think a motor cap should at least work, if not be optimal. Other than that just size the parts for current and voltage, maybe.
[17:40:30] <Jymmm> andypugh: =) thanks
[17:41:48] <andypugh> What you want is a low-ESR power supply cap. This is a bad example: http://www.ebay.com/itm/RIFA-PEH200-Series-3300uF-420VDC-Electrolytic-Capacitor-New-/160698998829
[17:42:19] <andypugh> It's the right cap, but the guy knows what it is worth. I got 3 for £10 from a guy who didn't.
[17:45:25] <Jymmm> andypugh: those are always the best kind =)
[17:46:19] <Jymmm> andypugh: did I show you my new "flashlight"?
[17:46:44] <andypugh> Do I want to answer this question?
[17:47:01] <Jymmm> andypugh: http://intl-outdoor.com/2usb-mobile-device-charger-318650-xml2-sideswitch-flashlight-p-741.html
[17:47:35] <Jymmm> andypugh: I did have to mod it to accept protected cells but was easy enough.
[17:47:40] <andypugh> That's the one that doesn't need you to make a rubber cap?
[17:47:56] <false> hey guys
[17:48:02] <Jymmm> andypugh: correct. It came with cap and a ring too
[17:48:28] <Jymmm> andypugh: I found it for $38 shipped
[17:48:33] <false> just wanted to come in and say thank you to everybody that helped me, the mill is running perfectly!!!
[17:48:33] <andypugh> Hi false
[17:48:42] <andypugh> w00t!
[17:48:46] <andypugh> Youtube!
[17:49:13] <false> Will post it as soon as I finish my last work on the atc
[17:49:45] <false> It happily grinding away as we speak :D .
[17:50:16] <andypugh> My mill is finally working almost properly, I am waiting for the correct lubricants to appear.
[17:50:29] <kwallace2> andypugh: Doooh, I keep thinking AC on the caps, but there is DC, unless something goes wrong.
[17:51:06] <false> What kind of mill is it?
[17:51:50] <andypugh> This evening I machined the spindle bearing cap to take an oil-seal, as I was annoyed by the way it dropped grease on me when I was using it. (I suspect that part of the problem is a PO injecting oil into the spindle bearing grease nippples, and also that it needs NLGI 3 grease not NLGI 2.
[17:52:36] <andypugh> kwallace2: Ah, yes, makes a big difference that does. You would struggle to find non-polar caps to handle the duty.
[17:53:43] <andypugh> false: Mine is a 1970s Harrison. It was a project that started with me finding 3 servos on eBay for a good price..
[17:53:44] <false> andypugh: that's a bit thicker?
[17:54:06] <false> andypugh: those are the best projects :P
[17:55:22] <kwallace2> I think Bridgeport mills run lifetime sealed bearings in the spindle.
[17:56:08] <CaptHindsight> lifetime of the bearing, not the mill :)
[17:56:13] <andypugh> false: There is a sort-of buld log here: https://plus.google.com/photos/108164504656404380542/albums/5901688686374813281
[17:56:53] <andypugh> Anything that I have added has tended to be an iron casting.
[17:57:33] <andypugh> And because it was fun, I started by converting the 30INT spindle to BT30 with a pneumatic drawbar
[17:59:46] <andypugh> The tool-measurement / changing station built in to the end casting is a masterstroke, if I may say so. I have no idea why they don't all have that from the factory.
[18:02:58] <Tom_itx> andypugh, do you need a barrel? http://www.alibaba.com/product-gs/1285751251/NLGI_3_Grease_for_Roller_and.html
[18:03:50] <andypugh> The 12mm Y-slide screw _is_ too small. I have a specially-ordered 16mm preloaded one to try to fit. However as the manufaturer drawing of the nut omitted the ball return tubes (!!!) I am not sure it will fit.
[18:03:56] <Tom_itx> http://www.skf.com/group/products/lubrication-solutions/lubricants/general-purpose-industrial-and-automotive-NLGI-3-grease/index.html
[18:04:52] <andypugh> Tom_itx: Yes, I eventually found some here: http://simplybearings.co.uk/shop/
[18:05:09] <andypugh> Not that you can navigate to it, but you can search it.
[18:05:11] <Tom_itx> i'm not sure what it is but i've got a tub of stuff that's like molasses and stringy as all get out
[18:05:39] <andypugh> NLGI 3 is more like soft clay.
[18:05:54] <Tom_itx> thickened with soap
[18:06:13] <andypugh> http://en.wikipedia.org/wiki/NLGI_consistency_number
[18:06:32] <andypugh> 3 is like lard, 2 is like peanut butter
[18:06:53] <andypugh> 3 is the right thing for vertical shafts, like spindles.
[18:07:28] <Tom_itx> i bet i can get it up the street by stuart's place
[18:07:32] <andypugh> I would like a lump of 6, just for fun
[18:08:09] <Tom_itx> not sure what you'd do with it
[18:09:02] <andypugh> Rub it in my hair when drunk, maybe? Probably best that I don't have it, in reflection.
[18:09:40] <andypugh> I actually have this arriving tomorrow: http://simplybearings.co.uk/shop/p210139/SKF+LGMT3+400ml+Cartridge+General+Purpose+Industrial+and+Automotive+Grease+/product_info.html and free delivery too :-)
[18:10:24] <andypugh> Oddly there is no way to get to that from the home page except via the search.
[18:10:35] <false> andypugh: Look amazing! The tool station is very handy indeed.
[18:11:17] <false> Do you work somewhere where they cast iron? Or do you have the ability to do this yourself?
[18:11:33] <false> Otherwise one piece would be very expensive no?
[18:11:56] <andypugh> false: Machine in motion: http://www.youtube.com/watch?v=X0celdfZmkA
[18:12:21] <andypugh> (the camera makes is seem a lot louder than it really is)
[18:13:12] <false> * likes machines in motion :P
[18:13:55] <false> On my mill the lubricate the spindles with the guideway oil, ever seen that?
[18:14:14] <false> Would seem unsuitable for that purpose to me?
[18:15:06] <andypugh> I know a man who knows a man who makes castings for the vintage vehicle scene. Each casting (from my own pattern) costs me £15 to £50. The £50 is a 10" dia 3-step pulley for a countershaft on my "toy" lathe.
[18:15:48] <andypugh> There are some machines that use the same oil for spindle, guides and _coolant_
[18:17:29] <false> Ah, didn't know that
[18:18:10] <false> Strangest about this is that the X-axis is greased and the y and z are oiled
[18:18:40] <false> Why not oil all of them, well Japanese eh
[18:18:56] <andypugh> Given that coolant pollutes the spindle and the slideway oil, and that the slideway oil pollutes the coolant, there is something to be said for using one oil everywhere.
[18:20:26] <false> Makes sense
[18:21:03] <false> There are special drains for the guideway oil on this machine.
[18:21:05] <andypugh> Yeah, my mill uses a different oil for the slides and the gearbox and the vertical head gears, but the vertical head _bearings_ use grease. And there is no actual separation between the vertical head bearings and the gerabox. I think the grease is meant to keep the oil in..,
[18:21:41] <false> More like a sealant, like they use on boat for the propeller shafts?>
[18:22:59] <andypugh> That is my theory.
[18:23:38] <andypugh> As I think I said, this evening I added an oil seal. (yesterday I machined a whole new housing, but then I changed my mind)
[18:25:35] <kwallace2> andypugh: At one job, if we had time between changing stock, we would set tools in holders and measure offsets at a tool bench. A tool setter on the mill table would make that a challenge.
[18:26:40] <false> Why not have both?
[18:28:05] <andypugh> If I am changing a tool it is because I broke it, and I need to change it to continue the job.
[18:29:00] <andypugh> I actually make very little stuff, you know.
[18:29:23] <false> Yeah that's different from production runs of course
[18:30:04] <kwallace2> If I were to put on on my table, it would be "because I can". :)
[18:30:31] <false> That's always a good enough reason for me :P
[18:30:36] <andypugh> I did actually make something for someone else on wednesday, which was a great thing to do because I got to go through a production run, and see where things need to change.
[18:32:01] <andypugh> But he sent me the material, and my fee was "can you replace the cutter I borked when I used a "G0 X5" retract where I meant "G0 Z5"
[18:33:16] <kwallace2> I used a G28 at the bottom of a hole.
[18:34:23] <andypugh> Sometimes that will be OK..
[18:34:51] <kwallace2> I need to do some testing soon and I'll need to come up with projects to make. I'm thinking, aluminum wheels for the lawn mower.
[18:35:12] <andypugh> No, use aluminium instead.
[18:35:43] <kwallace2> I can't get that here.
[18:37:23] <andypugh> Magnesium would be fun
[18:43:37] <Jymmm> cesium would be funner!!!
[18:43:48] <andypugh> Francium?
[18:44:01] <andypugh> (only mow on dry days)
[18:44:04] <Jymmm> cesium + moisture = KaBOOM
[18:44:37] <Jymmm> andypugh: moisture in the blades of grass/weeds
[18:44:59] <andypugh> http://youtu.be/uixxJtJPVXk
[18:45:06] <PCW> I'm afraid the alkali metals are a bit soft for wheels
[18:45:59] <PCW> any metal the glows in the dark when you cut it has my respect
[18:46:15] <Jymmm> pcw++
[18:47:25] <PCW> Not that I _should_ know this...
[18:47:46] <Jymmm> andypugh: You wanna know the sadest part of all?
[18:48:08] <andypugh> That you can't spell "saddest"?
[18:48:13] <false> :P
[18:49:26] <false> PCW, don't know if you caught my thank you a bit up, so I'll say it again: thanks, the mill runs perfectly!
[18:49:40] <Jymmm> andypugh: I did environmental testing on a 120 magnesiu vibration table doing 7G's of a device containing solid cesium / powered up gassified cesium with a leaking roof in the rain =)
[18:49:45] <Jymmm> 120lb
[18:50:06] <false> ^ :$
[18:50:35] <PCW> Glad its working!
[18:50:45] <false> Jymmm: Sounds exiting to say the least
[18:51:23] <Jymmm> false: Eh, the ENTIRE plant knew when I was testing =)
[18:51:46] <false> Jymmm: one of those 1% scared 1% exited or the other way around situations
[18:52:01] <false> 1% 99% that is
[18:52:27] <PCW> Cesium is pretty scary, only messed with sodium because of cost
[18:52:43] <PCW> (in my reckless youth)
[18:52:58] <false> where would one get cesium?
[18:52:58] <Jymmm> false: Nah, scared me more that the 440VAC 3PH that ran the vibration table was plumbed into a trench in the floor that all the rain water was running into
[18:53:47] <Jymmm> No clue
[18:53:55] <false> Where was this?
[18:54:18] <Jymmm> http://www.pixstel.com/alq-157-infrared-jammer_pics66-6672.jpg
[18:54:25] <Jymmm> THAT's what I tested.
[18:54:25] <andypugh> I had a 99% 1% mouse click at one point. The mouse click would engage the clutch on the 3000rpm 100kg flywheel to engage the cam to drive the platten from 0 to 50mph in 3mm, and then spend the next 50mm compressing my sample. When it went well I got data. When it went badly I was showered by parts.
[18:55:04] <Jymmm> the box that says DANGER on it =)
[18:55:21] <Jymmm> But it didnt say that when they gave them to me =)
[18:55:57] <andypugh> Maybe it was safe until they gave it to you?
[18:55:57] <Jymmm> Oh, here we go... http://www.baesystems.com/product/BAES_157454/analq-157-ircm?_afrLoop=755925530423000&_afrWindowMode=0&_afrWindowId=null&baeSessionId=pKXySYMLy5pTgjYP15v5pH7wwGcM1LVkH1194MLvvQJhrwgLDTJg!180347335#%40%3F_afrWindowId%3Dnull%26baeSessionId%3DpKXySYMLy5pTgjYP15v5pH7wwGcM1LVkH1194MLvvQJhrwgLDTJg%2521180347335%26_afrLoop%3D755925530423000%26_afrWindowMode%3D0%26_adf.ctrl-state%3Dkmfrudet9_4
[18:56:22] <Jymmm> andypugh: Nuh Uh, full powered test, end of assmebly line.
[18:56:42] <false> Is that a helicoper?
[18:56:57] <andypugh> Sorry, something about you makes me want to poke you with a stick. I can't explan it.
[18:57:09] <Jymmm> They have them in AirForce One, Apache Helicopters, and a few other aircraft
[18:57:34] <false> Kinda had to think what is was looking at
[18:58:26] <Jymmm> http://www.defence.org.cn/aspnet/usa-mil/News/UploadFiles/2005-1/200512818175621.jpg
[18:58:51] <Jymmm> Instant Suntan in 0.4 seconds
[18:59:05] <Jymmm> Well, IR, not UV.
[19:02:32] <Jymmm> They basically tell an incoming missile "No, I'm over here... No, I'm other here now.... No, I'm over there now...."
[19:02:44] <Jymmm> s/other/over/
[19:04:23] <andypugh> Not to be confused with "Instant sunshine" which is different
[19:04:45] <Jymmm> Yeah, totally different.
[19:05:31] <Jymmm> Most pilots will refuse to takeoff if this in non-op at the time.
[19:09:03] <false> Well if chances are that there are going to be missles flying towards them, I wouldn't blame them :P
[19:09:31] <false> can't blame them
[19:45:26] <Jymmm> Nope not at all, just kinda shows how much faith they put into them.
[19:49:55] <kwallace2> Way off topic - I have a homemade CDI on a KDX250 that I built a hand full of years ago. I was looking at it recently and it looks like it was poorly designed or I didn't follow the plan well. It uses a flywheel coil to charge a capacitor, and another coil to trigger an SCR. What are the major issues with getting the gate triggering correct?
[19:51:32] <andypugh> They tend to trigger with a hall sensor now, which might be more accurate
[19:51:43] <Jymmm> kwallace2: WHAT THE HELL?! We're talking missile defense systems and you bring up machining type stuff?!
[19:52:00] <Jymmm> ;)
[19:52:04] <andypugh> No, offroad bike stuff
[19:55:20] <kwallace2> I'm hoping to keep the current triggering since it is already in place.
[19:56:13] <kwallace2> Oops, diner. bbl
[19:56:20] <kwallace2> dinner
[20:08:36] <andypugh> probotix: I think your stuff showed up on the mailing list. If you are Len.
[20:16:07] <andypugh> Night all