#linuxcnc | Logs for 2012-10-14

[00:10:59] <r00t4rd3d> one side down :D
[00:12:28] <r00t4rd3d> i making a smaller paradise box out of 1/2 instead of 3/4
[00:30:16] <tjb1> I got a better part using sheetcam with new consumables
[00:31:01] <tjb1> holes are coming undersize, one direction of outside is with .010 and the other direction is around .03" off
[00:31:51] <tjb1> Holes are about .04" undersizedd all direction which I believe is a speed issue
[00:34:44] <tjb1> r00t4rd3d: http://sphotos-a.xx.fbcdn.net/hphotos-ash3/644632_4445237765044_1747512791_n.jpg
[00:34:47] <tjb1> Hows that one look
[00:41:28] <r00t4rd3d> pretty rusty
[00:43:47] <r00t4rd3d> how thick is that?
[00:44:00] <tjb1> 1/8
[00:44:09] <tjb1> Looks better than the other one :)
[00:44:16] <tjb1> http://sphotos-a.xx.fbcdn.net/hphotos-ash3/644632_4445237765044_1747512791_n.jpg
[00:47:16] <mazafaka> i'll take some video on normal photocamera today, tjb1 and show you the 'plates' I make. 1200x900x40 mm or so...
[00:51:44] <mazafaka> We have +-IT14/2 tolerances, but the steel is the hardening one
[02:01:02] <DJ9DJ> moin
[03:43:13] <mazafaka> Dad singing 'Crayon' for all my wiring / I'm crying onto people / Want to make them think deeper / This don't let me go
[06:19:46] <Loetmichel> *grrr* today semms to be not "my day"... first i break two TC mill bits... adn trash tow aluminium sheets in the process... then i wanted to eat: some fine swrf alling from my hair on the steak... i think i should go to bed and not work on a sunday :(
[06:24:23] <jthornton> your eating steak and getting your minerals and you complain
[06:26:21] <Loetmichel> you are suggesting: as log as i am not getting my tungsten in form of a high velocity projectile soot from the mill rotating at 24kRPM i am fine?
[06:32:12] <jthornton> LOL getting "shot" with tungsten doesn't sound like fun
[06:49:02] <archivist> trouble comes some time later when it works as internal sandpaper :)
[06:53:09] <mrsun> smoothing out the joints etc? :P
[08:56:08] <jthornton> yea my tap drill calculator is working
[09:01:53] <ReadError> for a cnc lathe
[09:02:06] <ReadError> does the spindle speed need to be known to cut threads properly?
[09:02:19] <ReadError> so the feed rate corresponds with the rpm ?
[09:05:22] <archivist> it needs an encoder so the Z can follow at the correct rate and an index to start traverse correctly
[09:06:10] <archivist> so yes the machine "knows" the spindle position
[09:07:21] <ReadError> http://www.youtube.com/watch?v=6UagccI5zb4
[09:07:25] <ReadError> i watched that last night
[09:07:30] <ReadError> and was like wow this is awesome
[09:10:19] <archivist> cnc threading is fun, internal without a safety groove PD/PD/2012/2012_05_06_Leawood/IMG_1240.JPG
[09:11:17] <ReadError> huh
[09:11:56] <archivist> oops whole link http://www.collection.archivist.info/archive/DJCPD/PD/2012/2012_05_06_Leawood/IMG_1240.JPG
[09:21:39] <jthornton> anyone know of a spreadsheet of drill sizes that I can use to populate my database with?
[09:38:07] <Tom_itx> http://www.carbidedepot.com/formulas-drillsize.htm
[09:38:11] <Tom_itx> i bet you could import that
[09:39:13] <r00t4rd3d> one thing i like about Vectric programs, they come with a large tool database
[09:39:58] <Tom_itx> jthornton, http://softwaretopic.informer.com/drill-size-table-spreadsheet/
[09:40:28] <Tom_itx> skip that one
[09:43:03] <Tom_itx> http://ca13.editgrid.com/user/philip/Drill_size_chart
[09:43:52] <jthornton> nice find
[09:44:24] <Tom_itx> i use the wall charts from tool distributors
[09:45:46] <jthornton> me too, but I need a drill bit database for my tap drill program
[09:46:05] <Tom_itx> http://www.mcadguru.net/datatables.htm
[09:46:31] <Tom_itx> some of those may be handy too
[09:49:02] <Tom_itx> http://www.mcadguru.net/tapdrills.htm
[09:49:08] <Tom_itx> tap drills thru 1"
[09:51:08] <Tom_itx> their fraction calc works too
[10:05:44] <jthornton> THANKS
[10:36:40] <spiderdijon> hi, each of the axis on my machine is capable of 10IPM how do I go about limiting each individual axis to that speed instead of the combined speed of all the axis'? So effectively all axis could be moving at 10IPM giving a total speed of 30IPM. LinuxCNC seems to by default limit the overall speed.
[10:38:04] <Tom_itx> set it on a per axis basis
[10:38:09] <Tom_itx> in the ini file
[10:38:16] <Tom_itx> [axis0..x]
[10:38:24] <Tom_itx> MAX_VELOCITY
[10:38:31] <Tom_itx> MAX_ACCELERATION
[10:38:40] <Tom_itx> STEPGEN_MAXACCEL
[10:39:57] <Tom_itx> i doubt you get 30ipm though
[10:40:13] <Loetmichel> hmmm
[10:41:05] <Loetmichel> can anyone pint me in the right direction where to configure linuxcnc to always retract z FULL at (manual)tool change?
[10:41:21] <spiderdijon> ok great thanks
[10:41:23] <Loetmichel> ... so i can get the tool out/in without stopping the programm?
[10:42:02] <Tom_itx> Loetmichel add it to your program
[10:42:15] <Tom_itx> G28 z0
[10:43:20] <Tom_itx> probably with an M5
[10:43:46] <Loetmichel> Tom_itx: i thought more of a possibility to execute a macro at toolchange or so
[10:44:26] <Tom_itx> i generally put a toolchange point in my programs so it's clear of things
[10:44:56] <Tom_itx> you could put that in a macro if you wanted
[10:45:49] <Tom_itx> i just added a couple lines to my cam post
[10:46:37] <mhaberler> Loetmichel: look at http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=tree;f=configs/sim/remap/manual-toolchange-with-tool-length-switch;h=4c79703b3b22f6d43949e91f97d1fe5b186a34fb;hb=ce55978c1af6941c101cd2a7191c3fe810888fd1
[10:46:37] <Tom_itx> G28 Z0 M5 M9 if you have coolant
[10:46:57] <mhaberler> that's the most flexible form currently possible
[10:48:52] <Loetmichel> aha
[10:49:29] <Loetmichel> hmm... dont understand a thing. is there a howto that i understand what the changes in the ini and hal files do?
[10:49:38] <Loetmichel> thx anyway
[10:50:03] <mhaberler> there is a thing called 'manual', and it is here: http://www.linuxcnc.org/docs/devel/html/remap/structure.html ;)
[11:03:13] <Loetmichel> mhaberler: could you be a BIT more specific with your links? i meant a text whre is laid out what this modification DOES
[11:03:41] <Loetmichel> i tend to want to understand what i am modifying there
[11:05:33] <mhaberler> I'm a bit unsure how I should respond - there are several complete working examples, and the manual as reference; maybe the introduction helps: http://www.linuxcnc.org/docs/devel/html/remap/structure.html#_getting_started_a_id_remap_getting_started_a
[11:16:37] <Jymmm> http://www.redbullstratos.com/live/
[11:21:29] <cradek> the simple answer to this question is the tool change quill up flag
[11:36:12] <Loetmichel> mhaberler: after sonme seroius reading: nice mod, but WAY to much.
[11:36:47] <Loetmichel> i need no tool switch as my tools have the plstivc rings which serve as a lenght stop in the ER11
[11:37:03] <mhaberler> fine, then go for cradek's suggestion
[11:37:09] <Loetmichel> so all tools are same length from chuck to tip
[11:37:23] <Loetmichel> i just need enough room to change the tool manually
[11:37:57] <mhaberler> you asked 'to execute a macro at toolchange or so', this is what you asked
[11:38:17] <Loetmichel> as i use BoCNC i would have to do that manually in _every_ gcode
[11:38:48] <Loetmichel> ... waht is waht i do now. i just wanted to do that in the machine so i can omit the work
[11:39:40] <Loetmichel> grr... s/waht/what
[11:39:44] <Loetmichel> ... two times ;-)
[11:45:59] <skunkworks__> so why can't you use any of the tool change location settings in the INI? http://linuxcnc.org/docs/2.5/html/config/ini_config.html#_emcio_section_a_id_sub_emcio_section_a
[12:07:45] <L84Supper> http://www.redbullstratos.com/live/ live supersonic space jump
[12:14:36] <Jymmm> L84Supper: Too slow... 2012-10-14 09:04:47 Jymmm: http://www.redbullstratos.com/live/
[12:15:02] <L84Supper> Jymmm, have you been watching it all morning?
[12:15:10] <L84Supper> not too exciting yet
[12:15:36] <Jymmm> L84Supper: baout an hour; since 50K ft
[12:19:28] <IchGuckLive> hi all
[12:19:44] <IchGuckLive> felix now at 90.000ft
[12:20:01] <L84Supper> Wie gehts
[12:20:03] <IchGuckLive> http://www.redbullstratos.com/live/ Live from stratos
[12:20:30] <L84Supper> IchGuckLive, yeah, we were just talking about it before you arrived
[12:20:50] <r00t4rd3d> s/it/you
[12:21:04] <IchGuckLive> B)
[12:21:12] <r00t4rd3d> :D
[12:21:47] <r00t4rd3d> Im gonna go mass murder like 100 people....
[12:22:00] <r00t4rd3d> in Battlefield Play4Free :X
[12:22:58] <r00t4rd3d> I love flying the littlebirds
[12:28:03] <L84Supper> https://0xfb.com/shop.html SAM3U 32b ARM coxtex-m3 + 5 stepper drivers + 5 FET + analog in
[12:28:43] <L84Supper> http://smoothieware.org/smoothieboard very similar to ^^
[12:29:56] <L84Supper> they are targeted at reprap but has anyone seen any similar all-in-one motion control boards for CNC?
[12:30:22] <r00t4rd3d> tb6560 :D
[12:30:49] <r00t4rd3d> well i guess those are not all in one
[12:31:06] <IchGuckLive> i got lots of TB6560 working but all modified
[12:31:08] <L84Supper> yeah, if all in one means no host cpu :)
[12:31:19] <IchGuckLive> 100.000 ft
[12:33:16] <r00t4rd3d> per minute?
[12:33:28] <IchGuckLive> hight
[12:33:34] <L84Supper> ~1k ft/m
[12:33:49] <r00t4rd3d> how fast do you modified 6560's go?
[12:33:54] <r00t4rd3d> your*
[12:34:39] <IchGuckLive> i go only 2500mm/min at 400stp/rev and 4mm 7rev
[12:35:03] <IchGuckLive> 4mm per revolution
[12:35:33] <IchGuckLive> changed all the D from 304 to UF5407
[12:35:54] <IchGuckLive> and the 1kpf to 150pf
[12:36:24] <IchGuckLive> there is now no sound at all an the board witch is pretty good at the education room
[12:38:29] <L84Supper> http://www.ebay.com/itm/CNC-Router-5-Axis-TB6560-3-5A-Stepper-Motor-Driver-Board-Controller-/221004524823?pt=LH_DefaultDomain_0&hash=item3374e56d17
[12:38:40] <L84Supper> or the 3 axis versions?
[12:39:54] <IchGuckLive> ich hab nur 3A
[12:40:02] <IchGuckLive> 3axen und 5 achsen
[12:40:14] <r00t4rd3d> i got the 3axis one
[12:40:24] <IchGuckLive> sorry eng
[12:40:24] <r00t4rd3d> have not modified anything on it though
[12:40:43] <IchGuckLive> change the 150pf
[12:40:52] <IchGuckLive> and you will be impressed
[12:41:09] <r00t4rd3d> is that a smd chip?
[12:41:15] <L84Supper> ich ferstein / I understand
[12:41:57] <L84Supper> I propose that all discussion be handled simultaneously in 2 or more languages
[12:42:11] <L84Supper> Englsih and possible american :)
[12:43:20] <IchGuckLive> B)
[12:43:30] <IchGuckLive> im on 4 channels German
[12:43:40] <IchGuckLive> for redbull stratos live
[12:44:21] <r00t4rd3d> IchGuckLive, are the 150pF smd?
[12:44:23] <L84Supper> whats the plan, jump at 120k or just wait until it pops?
[12:44:45] <IchGuckLive> r00t4rd3d: yes but so easy to do
[12:44:56] <IchGuckLive> there is nothing around at the bottem
[12:45:15] <r00t4rd3d> how many is there?
[12:45:22] <r00t4rd3d> 3?
[12:46:14] <r00t4rd3d> Find me a ebay link for them plz :D
[12:46:31] <IchGuckLive> 1 per channel
[12:47:03] <IchGuckLive> r00t4rd3d: go to the next TV store 5cent
[12:47:12] <IchGuckLive> 1206 150pf
[12:47:44] <L84Supper> http://www.drkfs.net/REVERSESTEPPER.jpg what do you guys modify on the boards?
[12:48:27] <r00t4rd3d> http://www.ebay.com/itm/1206-150pF-50V-C0G-5-Kemet-C1206C151J5GAC7025-100pcs-/160695334943?pt=LH_DefaultDomain_0&hash=item256a30381f
[12:49:19] <r00t4rd3d> i guess you just change out a few ceramic capacitors
[12:49:56] <r00t4rd3d> but they are surface mounted chips, not to fun to solder
[12:50:06] <IchGuckLive> it is fun
[12:50:13] <IchGuckLive> i did it on 30+ boards
[12:50:24] <r00t4rd3d> ich you see the ebay link i posted? would those work ?
[12:50:36] <IchGuckLive> just hit them with som solder on the header and they are gone
[12:50:50] <IchGuckLive> yes they do
[12:50:57] <r00t4rd3d> New Kemet 1206 Size 150pF, 50V, C0G, +/-5%, Surface Mount Ceramic Capacitor
[12:51:06] <IchGuckLive> but i woudt go for the TV shop
[12:52:09] <IchGuckLive> and if you are a freek change the 20+ Diods from FR304 1ms to UF5407 100ns time
[12:52:39] <IchGuckLive> this gives your Power suppply a maximum stability
[12:53:01] <IchGuckLive> im off By
[12:53:09] <r00t4rd3d> im just gonna buy an extra one and send it to you
[13:02:47] <mrsun> http://www.projectsinmetal.com/new-project-plans-for-a-versitile-mill-vise/
[13:02:51] <mrsun> hmm thats a nice one =)
[13:03:05] <mrsun> might just have to make a similiar for the mill :P
[13:08:54] <Tecan> http://www.youtube.com/watch?v=MrIxH6DToXQ#! >> live Red Bull Stratos - freefall from the edge of space
[13:21:09] <r00t4rd3d> wow he is tumbling
[13:21:25] <r00t4rd3d> aww now he is stable
[13:29:51] <alex_joni> touchdown ;)
[13:30:36] <r00t4rd3d> them girls kissed a touch too long...
[13:37:36] <L84Supper> Weight: The uninflated balloon weighs 3,708 pounds.... I wonder where and in how many pieces it lands
[13:38:45] <pcw_home> Thats one big dry cleaner bag
[13:39:34] <L84Supper> we used to use those and cotton balls soaked in alcohol as the burners
[13:40:21] <L84Supper> it's was all fun and games as a kid until the wind changed direction one day :)
[13:40:49] <pcw_home> I used 9x12foot .0005 mill dropcloths (and a bunch of scotch tape)
[13:42:36] <L84Supper> pcw_home, helium filled or hot air?
[13:42:40] <pcw_home> no fire, just filled with hot air from a campstove and tied off
[13:42:41] <pcw_home> I think the biggest was 6 dropclothes
[13:43:33] <pcw_home> 9V battery power lights
[13:44:52] <pcw_home> lots of UFO reports... We stopped doing it when one drifted down by the freeway
[13:46:29] <pcw_home> misspent youth
[13:46:33] <L84Supper> ever tie strips of aluminum foil to one?
[13:46:46] <L84Supper> the airport nearby loved that
[13:48:31] <pcw_home> No but we used I think it was telephone wire to tie off the open end
[13:48:32] <pcw_home> (it took three people to hold the edges of the bag over the campstove and then quickly tie off to ascent)
[13:49:29] <L84Supper> heh... back in the 70's when it was just considered fun
[13:49:52] <L84Supper> it would probably make international news headlines now
[13:50:05] <pcw_home> you would have homeland security at your door now
[13:50:25] <pcw_home> (i love that word so much like fatherland)
[13:51:10] <L84Supper> first thing that came to mind
[13:53:19] <L84Supper> http://www.youtube.com/watch?v=8F4t-9Qa-V0 RC plane with camera over NYC
[14:23:27] <awallin> hmh someone selling a Cincinnati 0-8 for 500euros... well I don't have space for that anyway :)
[14:29:33] <skunkworks__> that is when you make space!
[16:01:38] <DJ9DJ> gn8
[16:01:44] <pfred1> nite
[17:01:30] <djdelorie> Today I was jogging my machine, thinking "you know what would be cool? if shift-arrow did a high speed jog". So I tried it. IT WORKED! Good job on that one :-)
[17:03:53] <pfred1> djdelorie want to see my wooden linear guides?
[17:04:00] <djdelorie> sure
[17:04:08] <pfred1> http://i.imgur.com/nnTz3.jpg
[17:04:27] <pfred1> and http://i.imgur.com/8rTnD.jpg
[17:04:37] <djdelorie> will you be adding capture bearings too?
[17:04:50] <pfred1> djdelorie you're into woodworking so I figure you can appreciate it
[17:04:54] <djdelorie> yup :-)
[17:05:13] <djdelorie> my cnc table is currently all clamps and glue again :-)
[17:05:29] <pfred1> my machine is going to be plunk it down and go
[17:05:38] <pfred1> it won't have a table really
[17:05:48] <djdelorie> my next task is to write a routine to mill pocket screw holes with a 1/8" router bit
[17:05:52] <pfred1> it is going to stand up on legs
[17:06:01] <djdelorie> ?
[17:06:07] * djdelorie is missing a concept here
[17:06:17] <pfred1> just how it is going to work you could attach it to a table but it'll run without one
[17:06:39] <djdelorie> what would you attach it to otherwise?
[17:06:43] <pfred1> like you could just drop it on a sheet of plywood and start cutting
[17:06:56] * djdelorie is wondering if it could mill 2x12 rafters on-site...
[17:07:05] <pfred1> it should be able to
[17:07:17] <pfred1> if you could clamp it to it
[17:07:29] <djdelorie> I did my shed's rafters with a router and template. Everything lined up perfectly and I didn't have to "guess" on anything
[17:07:29] <pfred1> it should run at any angle too
[17:07:32] <pfred1> like on a wall
[17:07:58] <djdelorie> are you still in the "I wonder if this will work" stage?
[17:08:06] <pfred1> I've been running my Z axis on its side it seems to work
[17:08:17] <pfred1> well today was a big step
[17:08:25] <pfred1> that one truck runs smooth
[17:08:34] <pfred1> like really smooth
[17:09:05] <djdelorie> if you made those wooden blocks the bearings are on wider, you could add a second set of bearings on the other side of the rail board to capture it
[17:09:13] <pfred1> I'll see when I get the whole Y axis together but so far it is looking good
[17:09:32] <pfred1> well it will be captured this is on its side
[17:09:41] <pfred1> there will be another rail opposite of it
[17:09:55] <pfred1> let me find a sketch of the design
[17:09:56] <djdelorie> ah
[17:10:28] <djdelorie> if the whole thing will be made of wood, full capture on both sides might be better
[17:10:52] * djdelorie wonders if pocket screws would be the "right" way to attach those blocks...
[17:11:12] <pfred1> I was wondering if I shouldn't screw them down so I could adjust them if I need to
[17:11:36] <pfred1> but I figure I'll just make a jig so when i glue them they're dead on the same
[17:11:49] <djdelorie> they won't need adjustment until you have both sides done :-)
[17:12:13] <pfred1> yeah that is one question I still have will it bind when it is all together
[17:12:29] <djdelorie> if you used a slot for the bearing's bolt, and milled the slot at a slight angle, you could adjust it by just moving the bearing bolt in the slot
[17:12:39] <pfred1> yeah I thought about that
[17:12:48] <djdelorie> but I'd switch to a hardwood block if you're going to mill that much out of it
[17:13:17] <djdelorie> and you'd definitely need opcket screws and glue at that point, because the slot would interfere with screws from the outside
[17:13:30] <pfred1> well this is a really early sketch and the rails are actually reversed from how I ended up doing them http://i.imgur.com/lysGP.jpg
[17:13:38] <djdelorie> unless the bearings were more centered...
[17:14:47] <djdelorie> the weight of the carriage in either of those configurations would cause the sides to spread out... ?
[17:15:00] <pfred1> this is a half a side http://i.imgur.com/8Y11S.jpg
[17:15:23] <pfred1> about the spreading I'll let you know but the 3/4 ply with those rails on them is pretty beefy
[17:15:32] * djdelorie thinks it needs a separate load-bearing bearing
[17:15:35] <pfred1> my X axis is only going to be 3 feet
[17:15:45] <djdelorie> plywood is *not* strong in that particular direction
[17:15:56] <pfred1> but it is with those rails glued to it
[17:16:09] <pfred1> it is like an engineered beam then
[17:16:15] <djdelorie> do some googling about "hardwood shelf sag calculator"
[17:16:50] <pfred1> I've dry fitted some pieces here it seems pretty solid to me
[17:17:04] <djdelorie> I suppose it depeds on what tolerance you need, too
[17:17:21] <pfred1> oh yeah I'm only looking to do decorate routing with this
[17:17:43] <pfred1> whatever it is off will just be artistic license as far as I'm concerned
[17:18:01] <djdelorie> if it *does* sag, it's easy to use pocket screws to add a brace to the middle of the outside of the side
[17:18:11] <pfred1> although if it works like I thnk i may remake it in steel
[17:18:32] <pfred1> this is just the prototype to check the design
[17:19:07] <djdelorie> or 8020 with linear bushings?
[17:19:22] <pfred1> nah I'll use hot rolled angle iron
[17:19:26] <pfred1> nothing fancy
[17:19:38] <pfred1> maybe I'll belt sand the bearing faces
[17:19:47] <pfred1> get the scale off
[17:20:41] <djdelorie> of course, if you have a cnc machine you can mill vertical braces out of hardwood plywood to attach the angle brackets to to hold them in position :-)
[17:21:02] <pfred1> well I have a milling machine now
[17:21:12] <pfred1> it just isn't CNC
[17:21:32] <djdelorie> I have one of each. A mill that isn't cnc and a cnc machine that isn't quite a mill
[17:22:01] <pfred1> I need to use my mill by hand too much to CNC it
[17:22:27] <pfred1> plus it'd cost me a fortune to get new leadscrews for it
[17:23:11] <pfred1> I've given it a lot of thought and it just wouldn't be worth it to me all around to CNC my mill
[17:24:17] <pfred1> djdelorie you might get a kick out of this this is the setup I used to cut that dado in the rails http://i.imgur.com/EXhhU.jpg
[17:24:43] <pfred1> it was a little tricky
[17:24:48] <djdelorie> that looks "normal" in my book :-)
[17:24:49] <djdelorie> food calls...
[17:24:53] <pfred1> k
[18:05:16] <r00t4rd3d> http://en.rocketnews24.com/2012/10/14/ukraines-anime-girl-and-real-barbie-meet-face-to-eerie-face/
[18:05:23] <r00t4rd3d> now thats just weird.
[18:09:12] <r00t4rd3d> http://community.allhiphop.com/discussion/464889/ukrainian-girl-wants-to-be-a-real-life-barbie-doll-succeeds
[18:09:19] <r00t4rd3d> im on the fence with her....
[19:52:59] <Jymmm> At what PSI what a N2 tank be empty?
[19:55:32] <jdh> 14.7psia, give or take a little for temp/altitude
[19:59:19] <tjb1> Most gauges are already set to atmosphere though.
[19:59:34] <tjb1> Keep that in mind :)
[19:59:39] <jdh> that would be psig
[20:00:10] <tjb1> Learn something new everyday!
[20:02:03] <KimK> Jymmm: We have several nitrogen counterbalances that we have to top off from time to time due to leakage. The sizes vary, but our fill tank becomes "empty" at 850 to 1100 psi, because it is no longer able to overcome the existing pressure. Is that what you mean?
[20:02:59] <jdh> if it is just to displace o2, it is 'empty' at whatever the regulators IP is.
[20:03:04] <KimK> Jymmm: Oh, this is for a laser, maybe?
[20:03:22] <Jymmm> KimK: Yeah. High side reads ~1500, hit the blowgin and get a burst, then just fizzles out
[20:03:30] <Jymmm> POS reg too
[20:04:01] <jdh> that sounds like a flow rate issue
[20:04:21] <Jymmm> I can stop the flow with my finger
[20:04:34] <Jymmm> on the end of the blowgun
[20:04:54] <jdh> is there a restrictive orifice on the output side of the reg?
[20:05:36] <Jymmm> jdh: *I* really dont know. I've never had an issue with it before.
[20:05:45] <KimK> Is this laser a continuous-flow gas system, or is the gas mix recovered, cooled, and re-used?
[20:06:12] <Jymmm> KimK: No it's a 40# N2 tank I use to inflate tires and stuff =)
[20:06:17] <jdh> is there a pressure side guage calibrated in lph or something similar?
[20:06:22] <jdh> low pressure side
[20:06:32] <KimK> Ha, OK, that's different!
[20:06:51] <Jymmm> jdh: it's a volume regulator from HF, not a pressure one.
[20:07:42] <jdh> http://www.harborfreight.com/regulator-gauge-94841.html
[20:07:44] <jdh> like that?
[20:07:49] <Jymmm> Yep, that's it
[20:07:58] <Jymmm> that be the POS =)
[20:08:34] <jdh> the thing the barb fitting is screwed on to is most likely an orifice
[20:09:11] <jdh> you can drill it out for more flow, but the guage will be worthless
[20:09:29] <Jymmm> like a reducer to .0625" ?
[20:09:57] <jdh> probably smaller than that.
[20:10:37] <Jymmm> jdh: I have a pressure valve I could replace the volume gauge with if I remove the orifice. would that work?
[20:10:50] <jdh> pressure gauge?
[20:10:51] <Jymmm> pressure guage
[20:11:06] <Jymmm> pressure guage, not pressure valve.
[20:11:13] <jdh> I'd drill it bigger or put a needle valve on it.
[20:11:24] <KimK> Jymmm: How about finding a welder who needs that flow regulator, and then go back to Harbor Freight and get the pressure regulator you really wanted in the first place?
[20:11:25] <Jymmm> I can't just remove it?
[20:11:43] <jdh> sure, but it will probably work better with a little back pressure.
[20:11:48] <Jymmm> KimK: they dont have any for one.
[20:12:02] <Jymmm> jdh: oh. really?
[20:12:22] <jdh> it's a single stage reg, it will flow differently (higher) when supply pressure drops
[20:12:36] <Jymmm> ah
[20:13:43] <Jymmm> jdh: any suggestion on a real pressure reg to get?
[20:13:59] <KimK> Jymmm: They're out of this one: http://www.harborfreight.com/oxygen-regulator-94846.html
[20:14:14] <KimK> s/this one/this one?/
[20:14:37] <Jymmm> KimK: That's CGA540, not 580
[20:14:40] <jdh> welding shop will have everything. Pricey though. there are thousands on ebay
[20:14:55] <Jymmm> jdh: Heh, ebay is even MORE pricy =)
[20:15:04] <jdh> you can swap the 540 for the 580, they are almost always 1/4" NPT on the reg side
[20:15:33] <jdh> I have a bunch of ebay regs, never paid more than $25
[20:15:42] <KimK> What, the fitting is different? Can you use the fitting from the one you've got?
[20:16:05] <Jymmm> I thought it was more than the fittign thats different
[20:16:34] <jdh> I get mostly o2 regs and put 580's on them for helium
[20:16:46] <Jymmm> ah
[20:17:10] <Jymmm> jdh: is there a difference other than the fitting (technically)?
[20:17:21] <jdh> not for that kind of reg
[20:17:38] <jdh> better ones are 2-stage
[20:18:17] <KimK> You've got me curious, what's the difference between the fittings for N2 and O2?
[20:18:33] <jdh> in the US, o2 is cga-540, inert gas is cga-580
[20:19:02] <jdh> 346 for air, 347 for high pressure air. Lots of others for med gas, etc.
[20:19:38] <jdh> 580 valve has internal threads, 540 has external
[20:21:15] <Jymmm> ebay doens't seem to have much right now, neiher does CL
[20:21:38] <KimK> OK, thanks. Speaking of gases (OT from LinuxCNC I guess), is anybody using (or know anybody that is using) Compressed Natural Gas? (CNG, not to be confused with propane/LP gas)
[20:22:22] <jdh> I see lots of them on ebay
[20:22:34] <Jymmm> jdh: link?
[20:23:10] <jdh> http://www.ebay.com/sch/i.html?_trksid=p5197.m570.l1313&_nkw=oxygen+regulator
[20:24:12] <KimK> I saw the Rick Santelli video on converting a pickup truck, he was pretty exited about it. $1.25 a gallon would fire anybody up.
[20:24:26] <jdh> how many btu's in a gallon of cng?
[20:24:34] <jdh> vs. gasoline anyway
[20:24:43] <KimK> Not sure, I'd like to know that too.
[20:24:53] <Jymmm> How many MILES in a gallon of CNG =)
[20:29:35] <tjb1> How slow you wanna go?
[20:32:29] <jdh> I just bid on 4 regs... 40 mins left.
[20:32:55] <KimK> This -> https://en.wikipedia.org/wiki/Gasoline_gallon_equivalent says that they are equvalent at 2400 PSI. But RIck was talking about 3000 and 3600 PSI tanks, where at 3600, a "gallon" of CNG is equal to 3.82 gallons. That makes it less astonishing that their "small tank" (small car too) conversion is only 2 gallons (7.64 gallons).
[20:33:33] <jdh> 2400 psi at the same volume?
[20:33:41] <jdh> it's an awkward way to compare things.
[20:34:33] <pcw_home> there is one mile in a gallon of CNG (and its 1/16"x1/16")
[20:34:52] <jdh> heh
[20:38:45] <jdh> anyone ever been to palmdale, ca?
[20:39:52] * Jymmm denies all knowledge of palmdale/lancaster Calif
[20:40:22] <Jymmm> jdh: (sorta kinda)
[20:40:33] <KimK> It takes thousands of dollars to get into CNG, but once you're in, you're getting fuel for $1.25/gallon less than gasoline, he must have said? (I haven't checked his figures). Anyway, the payback would be brisk if you drive a lot of miles. Here's a paypack calculator: http://www.transecoenergy.com/pages/calculator.htm and here are some CNG FAQs: http://www.shifttocng.com/faq A search on Rick Santelli CNG conversion video produced
[20:40:33] <KimK> a lot of hits too.
[20:40:39] <KimK> Oops, flooding
[20:40:44] <jdh> I'm buying a gas booster from some semi-random lady in palmdale. I looked on google maps & streetview... looked slighly worse than hell.,
[20:41:14] <Jymmm> jdh: google Victorville or Barstow =)
[20:41:21] <Jymmm> esp Barstow
[20:42:22] <jdh> heh, there is a sign on I40 here that says "Barstow, CA 2300 miles" or something like that.
[20:43:11] <jdh> I sent her a cashiers check. I'm hoping I actually get a booster.
[20:51:11] <Jymmm> jdh: USPS Money Order and send by US Mail
[20:51:31] <Jymmm> jdh: then it's mail fraud if you dont get it =)
[20:51:58] <jdh> I sent it USPS priority mail. Was supposed to be there Friday, but it isn't.
[20:52:26] <Jymmm> jdh: Try tomorrow. It is BFE =)
[20:52:35] <Jymmm> jdh: I like USPS MO
[20:52:58] <jdh> looks really weird on google maps. Lots of roads, nothing on them.
[20:53:32] <Jymmm> yep, that be the High Desert =)
[20:53:55] <jdh> why would people live there?
[20:54:06] <Jymmm> It is/was cheap.
[20:55:03] <jdh> how long does it take to get to civilization?
[20:55:15] <r00t4rd3d> 2 joints for me.
[20:55:22] <Jymmm> from barstow or victorville?
[20:55:36] <Jymmm> victorville to ONT is EXACTLY 50 miles =)
[20:55:51] <Jymmm> ONT == Ontario Airport.
[20:56:23] <jdh> oh, not too far. Palmdale is only 60ish miles from LA
[20:57:26] <jdh> what do people do in victorville? any industry?
[20:58:23] <jdh> looks like they sell stuff out of the back of their cars
[20:58:50] <r00t4rd3d> crack rocks and black market babies.
[21:03:09] <tjb1> Ah damn, he is here
[21:04:52] <r00t4rd3d> im always here
[21:05:17] <tjb1> :)
[21:05:33] <r00t4rd3d> ill be here till i get banned.
[21:05:39] <r00t4rd3d> :X
[21:06:30] <tjb1> http://www.harborfreight.com/4-piece-1-inch-x-15-ft-ratcheting-tie-down-set-90984.html
[21:06:47] <r00t4rd3d> garbage.
[21:06:53] <r00t4rd3d> I know straps.
[21:06:57] <r00t4rd3d> those are junk
[21:07:26] <jdh> a) HF, b) 1", c) HF
[21:08:05] <tronwizard> I bought a set of those they seem to work ok, have just used them to hold a storage rack together while the glue dried though, not much of a test
[21:08:43] <tjb1> They are $$6
[21:08:49] <tjb1> Work good enough for the price
[21:08:50] <r00t4rd3d> get what you pay for
[21:09:14] <tjb1> Yeah a strap that holds things down :P
[21:09:39] <r00t4rd3d> its always the ratchet.
[21:09:48] <tjb1> When I require something good I use - http://lh3.ggpht.com/-XmgCOTMkQIk/R9f0MZZenRI/AAAAAAAABSA/TDML7YB6xMY/Rhino%252520Web%252520Ratchet%252520Strap%252520and%252520Ratchet%252520Strap.jpg
[21:10:03] <r00t4rd3d> those are nice.,
[21:10:50] <tronwizard> those are nice, where'd you get em?
[21:10:57] <tjb1> I suppose you dont like kinedyne?
[21:11:28] <tjb1> tronwizard: http://cumberlandtruck.com/cumberlandtruck/site/
[21:12:28] <tronwizard> tks
[21:13:06] <r00t4rd3d> damn the smallest they got seems to be 20+ feet
[21:14:02] <r00t4rd3d> i bet they are stupid expensive
[21:15:01] <jdh> Jymm: http://www.ebay.com/itm/140862403192
[21:15:50] <Jymmm> Bummer ended
[21:16:20] <jdh> yep, but on the bright side, they are mine now :)
[21:16:35] <tjb1> r00t4rd3d: http://www.ebay.com/itm/KINEDYNE-2-INCH-27-FT-LONG-WIDE-HANDLE-RATCHETING-STRAP-FLAT-HOOKS-3-335-LBS-/251165935765?pt=Other_Vehicle_Parts&hash=item3a7aa80895&vxp=mtr
[21:18:20] <Jymmm> jdh: but thanks, if you see over like that let me know =)
[21:19:49] <jdh> ok. I'm set for a while now. But... I only need two. I'll sell you one for $35!
[21:24:27] <jdh> http://www.ebay.com/itm/390479916511
[21:34:41] <r00t4rd3d> http://www.cnclinx.com/
[21:38:44] <r00t4rd3d> http://www.modelairplanenews.com/blog/2012/01/24/adjustable-workbench-how-to/
[22:26:58] <Jymmm> jdh: This reg is funny, I can hear the reg itself kinda "poop out" after the initial burst from the blowgun, then sorta "recharge" if you know what I mean.
[23:57:49] <r00t4rd3d> https://www.youtube.com/watch?feature=player_embedded&v=sf-W_88End0
[23:58:00] <r00t4rd3d> headcam footage from that space jumping stuff
[23:58:12] <r00t4rd3d> aww removed now lol
[23:59:01] <r00t4rd3d> http://www.youtube.com/watch?v=DxBbm7gKG84