#linuxcnc | Logs for 2013-06-19

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[00:06:49] <RyanS> Makes sense
[00:13:15] <whoaski> crazy question how many revolutions can linuxcnc keep up with? as in what if I wanted a stepper to travel down a rail say 40 feet?
[00:25:58] <cradek> whoaski: for some years now positions have been double precision so there's no practical limit that you will encounter
[00:28:23] <cradek> you could get up to around 10^300 inches or mm and not notice a problem
[00:28:37] <RyanS> So my spindle can do a maximum of 1700 rpm with 100 mm chuck (3.7kg), I'm told the next size chuck (6kg) would reduce rpm... Question is how much reduction
[00:28:40] <cradek> (untested)
[00:29:29] <RyanS> 1400 according to this chart is about the maximum I need
[00:33:09] <whoaski> not the cutter but one of the axis
[00:34:01] <cradek> yes I mean 10^300 inches or mm or degrees of axis travel
[00:34:33] <whoaski> sweet! thanks cradek
[00:35:25] <cradek> your gcode would get awkward because it doesn't support exponential notation
[01:41:34] <RyanS> hmmm linoleum as a workshop benchtop might actually work.....
[02:00:40] <WalterN> RyanS: wouldent it be a little more squishy than wood?
[02:02:08] <RyanS> Its for underneath a lathe so I figure a bit of padding would be good so parts being made don't get dinged and scratched.
[02:09:02] <RyanS> I reading that because a CNC machine can take lighter cuts more often the frame need not be as massive and rigid as its manual counterpart (deep cuts less often).... but CNC machining centres have enormous frames
[02:15:19] <WalterN> hmm
[02:15:35] <WalterN> http://tiwake.com/IMG_0293.JPG
[02:31:19] <RyanS> Strange metal
[02:38:06] <WalterN> 4140 off of a manual lathe that I cut ages ago
[02:39:00] <archivist> blued :)
[02:39:52] <RyanS> What's 4140
[02:40:30] <WalterN> it looked so nice on the floor I scooped some up in a ziploc bag to take pictures of later
[02:40:32] <archivist> a grade(spec) of metal
[02:42:47] <archivist> the best I did once was chips 3ft over the tailstock
[02:43:16] <WalterN> ...how do you get chips over the tailstock?
[02:43:43] <Loetmichel> mornin'
[02:43:44] <archivist> so the cupboard behind to the rear had chips on top
[02:43:55] <Loetmichel> mornin'
[02:44:40] <Guest73270> I hate expensive floor glitter, I had to pocket large parts not so long ago :(
[02:44:52] <archivist> enough energy in the cut I suppose and the right cutting direction, was brass where one does speed up a bit
[02:45:26] <WalterN> I've cut brass before where it was basically impossible to crank the handles from the spray getting... everywhere.. had to get a piece of cardboard to keep the chips in places mostly sane
[02:45:43] <WalterN> oh, you were cutting brass
[02:45:45] <WalterN> yeah
[02:46:09] <WalterN> heavy cuts with brass likes to spray _everywhere_ :3
[02:46:21] <archivist> lean back lathe at arms length and the back of your hand burning
[02:46:37] <WalterN> riot shield
[02:46:48] <archivist> and others giving you a wide berth
[02:54:45] <RyanS> http://www.kelinginc.net/CNCSpindleandController.html I don't get why the pneumatic tool change of version is out of all proportion more expensive... $3,000 simply for a different toolholder with pneumatic drawbar??
[06:45:19] <R2E4> I was reading in the forums, you can connect n MPG directly to the encoder input on the 7i77. Is there some truth to this?
[06:47:45] <jthornton> aye, that is the way to connect your MPG to the 7i77
[06:49:46] <jthornton> I also have two selector switches, one for axis selection and one for increment
[06:50:26] <R2E4> They wire into inputs?
[06:50:45] <jthornton> they who?
[06:50:51] <R2E4> I have a parralel interface for it. iT is a cnc4pc
[06:51:07] <R2E4> asix selection and selector switches
[06:51:29] <jthornton> yes the selector switches are just inputs
[06:51:48] <R2E4> I think I will need more outputs and maybe inputs.
[06:52:17] <jthornton> http://linuxcnc.org/docs/html/examples/mpg.html
[06:52:54] <jthornton> IIRC you can get an I/O card for the second port on the 5i25
[06:53:07] <jthornton> as well as other options for even more I/o
[06:53:20] <R2E4> Thats what I am looking at on the mesa site
[06:53:35] <jthornton> one of the early things I do is make an I/O list to get a count
[06:54:11] <R2E4> I am working on an overview of the project.......
[06:54:17] <jthornton> PCW, knows all the options
[06:54:47] <R2E4> Phasing the project and filling in some details when I get them....
[06:55:10] <jthornton> you already have the 5i25 right?
[06:55:33] <R2E4> yeah, I have the 5i25 and 7i77 cables and mpg stuff.
[06:56:03] <jthornton> I think there is a sticker on the 5i25 that shows what it is programmed for
[06:56:48] <jthornton> IIRC a different bit file can be used for different card combinations
[06:57:08] <R2E4> I'll check it but I ordered it with the 7i77, so I would think it would come with the right configuration.
[06:58:05] <jthornton> I would guess it has 2 7i77's one for each port, if you need to use something else on port 2 you have to update the 5i25
[06:58:19] <R2E4> ok, I see.
[06:58:52] <R2E4> This is getting exciting. but damn.... theres alot to think of.
[06:59:51] <jthornton> LOL yea it can get busy... just do one thing at a time
[07:01:13] <R2E4> I downloaded the software to update the 5i25, when I printed the manual yesterday.
[07:01:53] <R2E4> I printed the getting started, Integration and user guide linux CNC and the 5i25 and 7i77 manuals.
[07:02:02] <R2E4> nothing like having printed copies......
[07:02:28] <jthornton> easier to read, harder to search, easier to make notes in
[07:04:22] <R2E4> Think I am going to get a bucnh of relays mount them on DIN rails and drive them with the outputs from the mesa cards.
[07:05:01] <R2E4> or get some relay cards, dont know the requirements yet of the current and voltage of the switching.
[07:05:48] <R2E4> All the motors are 220 3 phase. You dont switch the three legs when powering 3 phase motors?
[07:12:26] <jthornton> 3-phase motors use a 3-4 pole contactor rated for the amps that it draws
[07:12:35] <jthornton> don't you have all that in the machine now?
[07:13:20] <R2E4> plc relay would enable the contactor then?
[07:13:51] <R2E4> yes, it is there.
[07:14:03] <jthornton> normally the machine will have 24vdc coils on the contactors and you just wire that to the 7i77 outputs
[07:14:37] <R2E4> Theoretically I would just have to find which relay is used for which function and wire that into my relay on the outputs of the mesa board.
[07:14:47] <jthornton> aye
[07:15:24] <R2E4> ok....the contactor is tripped by the 24 volts....
[07:15:41] <R2E4> Damn..... this is going to be fun.
[07:16:25] <jthornton> normally when someone says relay they are switching a logic circuit and a contactor is switching a power circuit
[07:18:43] <R2E4> yeah. I'm pretty good with relays and timers. I use to build door interlocks with relays and timers......
[07:19:36] <R2E4> There was one that had 8 doors, with all kinds of logic. they didnt want to spend for plc, so I did it with relays and timers. They could have bought 5 plcs with the money it cost them.
[07:19:41] <jthornton> have you used the Automation Direct Click PLC's yet?
[07:20:02] <Tom_itx> jthornton, i thought of something... make a 'pulley' and put an o-ring around it fitted to your encoder shaft the size of your collet tube then mount the encoder atop and let it 'float' inside the tube
[07:20:02] <R2E4> I have used dl05 and 06's
[07:20:06] <jthornton> aye, and 10 AB buttons will buy you a touch screen
[07:20:22] <Tom_itx> the o-ring would help dampen vibration as well
[07:20:46] <R2E4> yeah...... its amazing they get that much for those things.
[07:21:00] <jthornton> Tom_itx, I'm not following
[07:21:11] <R2E4> You can get the same stuff at surplus stores for less than 5 bucks
[07:21:42] <Tom_itx> wedge the pulley with the o-ring on it inside the tube as a friction contact mechanism to drive the encoder shaft
[07:23:41] <jthornton> I have a good coupler for the encoder so I'll use that to avoid any side load on the encoder shaft
[07:23:43] <Tom_itx> make the pulley similar to what i did on the wheels on this bot only smaller: http://tom-itx.dyndns.org:81/~webpage/largebot/largebot1.jpg
[07:24:12] <Tom_itx> with a groove around the edge to seat the o-ring
[07:25:12] <jthornton> I'm just making a shaft with some o-ring grooves to push down into the tube and a shoulder to sit on the top then a small stub shaft for the coupling
[07:26:10] <Tom_itx> if you look closely, i used a grommet here to mount an encoder to the large wheel: http://tom-itx.dyndns.org:81/~webpage/motors/focusring3.jpg
[07:26:25] <Tom_itx> rather than driving it by it's intended gear
[07:27:07] <Tom_itx> the encoder is on the back side out of view
[07:27:28] <jthornton> back of the driven pulley?
[07:27:33] <Tom_itx> yes
[07:27:41] <Tom_itx> the other is just a motor
[07:28:35] <Tom_itx> i made an angle mount to hold the encoder also not visible there
[07:29:02] <jdh> http://raleigh.craigslist.org/tls/3880109107.html
[07:29:08] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/motors/focusring1.jpg
[07:29:13] <Tom_itx> there's the back side of it
[07:30:51] <jthornton> yep, I'm making a similar bracket to mount to the jacking screw holes
[07:30:55] <Tom_itx> if i didn't need the collet tube i'd use one of those on my sherline
[07:30:59] <Tom_itx> since it has index
[07:31:18] <jthornton> you have a draw bar?
[07:31:26] <Tom_itx> yeah, of sorts
[07:31:30] <Tom_itx> it's just a long screw
[07:31:48] <Tom_itx> only used for morse 2 taper holders like my drill chuck etc
[07:31:59] <Tom_itx> the collets screw to it from the bottom
[07:32:43] <Tom_itx> ok gotta run or i'll be late
[07:33:23] <jthornton> ok
[07:33:34] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/cnc/psu/encoder_disk1.jpg
[07:33:40] <Tom_itx> that's what's on the sherline right now
[07:33:44] <Tom_itx> with an IR sensor
[07:38:56] <R2E4> The ticker on my 5i25 is for two 7i77.
[08:17:39] <JT-Shop> now that is some latency http://www.linuxcnc.org/index.php/english/forum/38-general-linuxcnc-questions/26664-no-movement?start=10#35798
[08:55:28] <CaptHindsight> looks like latency the numbers you see on a laptop or on a VM like virtualbox
[08:55:59] <JT-Shop> yea
[08:58:26] <archivist_herron> or a grotty pc like I found a while ago
[10:51:56] <PetefromTn> Morning Folks..
[10:56:26] <PetefromTn> Sitting here trying to model my new encoder mount to the Cincinatti Arrow in Freecad so I can start making it. Bought this Avago HEDL 5540 A06 encoder and I can't get the damn thing apart LOL...
[11:04:48] <jdh> I tried using cambam the other day... does it not keep a tool table?
[11:06:28] <PetefromTn> Dunno just downloaded it myself but I THINK it does..
[11:14:50] <PetefromTn> http://snag.gy/Nl2Jf.jpg
[11:16:51] <PetefromTn> http://snag.gy/ubozQ.jpg
[11:17:56] <PetefromTn> That is the original cover and gasket for the old resolver and the freecad drawing is the new part that will go underneath the cover and gasket bringing the whole assembly up so I can make a stub shaft adapter to fit the encoders small bore.
[11:37:56] <Tom_itx> jdh, http://www.openscam.com/ticket/71
[11:38:32] <Tom_itx> not sure if that's referencing cambam or something else
[11:39:19] <Tom_itx> http://www.cambam.info/doc/plus/cam/ToolLibrary.htm
[11:41:27] <Tom_itx> on the post processor
[11:41:29] <Tom_itx> http://www.cambam.info/doc/0.9.7/cam/PostProcessor.aspx
[11:49:47] <dosas> hi, for my driver i need an enable pin so i'm trying to set all 3 enable signals on one pin
[11:49:52] <dosas> but when i use
[11:49:57] <dosas> net xenable => parport.0.pin-07-out
[11:50:02] <dosas> net yenable => parport.0.pin-07-out
[11:50:06] <dosas> net zenable => parport.0.pin-07-out
[11:50:14] <dosas> it complains that the pin is set 3 times
[11:50:19] <Tom_itx> yes
[11:50:29] <dosas> how do i do this i read in the wiki that it is possible but they do not show how
[11:50:41] <Tom_itx> use the net
[11:51:14] <Tom_itx> err i'm not sure you can do that, maybe if you used an 'or' gate
[11:51:28] <dosas> okay
[11:51:32] <Tom_itx> xneable -> or -> to the port pin
[11:51:35] <Tom_itx> next or
[11:51:36] <Tom_itx> next or
[11:52:29] <dosas> okay i will try this thank you
[11:57:03] <jdh> perhaps I had an old cambam, I don't recall any of those options
[12:01:32] <JT-Shop> http://imagebin.org/261877
[12:02:38] <Tom_itx> is that just to turn the encoder?
[12:04:11] <Tom_itx> don't forget to lather it up with red loctite just before you insert it :D
[12:04:45] <JT-Shop> lol
[12:05:11] <willburrrr2003> Am I right to assume that "net spindle_enable motion.spindle-on => pwmgen.0.enable => pid.0.enable" is the same as entering "net spindle_enable motion.spindle-on => pwmgen.0.enable"and "net spindle_enable motion.spindle-on => pid.0.enable" ?
[12:05:14] <JT-Shop> that's what it takes to fill the hole so it is 1.030" od
[12:05:48] <Tom_itx> rather a long plug though isn't it?
[12:06:02] <PetefromTn> JT-Shop: Whatcha makin'?
[12:06:03] <Tom_itx> it should run true
[12:06:14] <JT-Shop> willburrrr2003: why assume http://www.linuxcnc.org/docs/html/hal/basic_hal.html#_net_a_id_sub_net_a
[12:06:38] <Tom_itx> JT-Shop is your encoder digital?
[12:06:41] <JT-Shop> Tom_itx: that's what I was hoping and the tube is 4" to top of the spline
[12:06:45] <Tom_itx> it may be open collector
[12:06:45] <JT-Shop> yea
[12:06:47] <Tom_itx> mine are
[12:06:50] <Tom_itx> need pullups
[12:07:06] <JT-Shop> I've ran this one before
[12:07:09] <Tom_itx> ok
[12:07:25] <JT-Shop> PetefromTn: it's an adapter for my BP knee mill spindle to mount an encoder
[12:07:28] <Tom_itx> you might check to avoid nose issues later
[12:07:35] <Tom_itx> noise*
[12:07:51] <PetefromTn> Oh cool, thats kinda what I am working on rightnow.
[12:08:08] <PetefromTn> You gonna run a belt driven encoder setup?
[12:08:17] <Tom_itx> direct drive
[12:08:25] * JT-Shop goes to toast some French Bread and put some hot dogs on
[12:08:51] <IchGuckLive> JT-Shop: just finished BBq here
[12:09:14] <JT-Shop> PetefromTn: I just push that part into the spindle tube and mount the encoder to the coupler and mount
[12:10:55] <willburrrr2003> Hmmm JT-Shop, looks like the syntax has changed? the second "=>" is omitted in the example on that link...
[12:11:30] <PetefromTn> How do you use the drawbar then?
[12:12:25] <IchGuckLive> willburrrr2003: you can set the pin without =>
[12:12:35] <IchGuckLive> from 12.5.0
[12:13:06] <willburrrr2003> OK, thanks IchGuckLive :)
[12:13:42] <IchGuckLive> so you can put up to 5 things in one line
[12:14:13] <willburrrr2003> Tonight I will be doing several manual edits to my configs to make my spindle a closed loop control setup, right now it is just an openloop with no feedback controlled by a PWM signal.
[12:14:25] <IchGuckLive> 1 2 <= 3 => 4 5
[12:14:31] <willburrrr2003> 5 thinkgs, good to know :)
[12:15:44] <IchGuckLive> better and faster interpreter is to .set the signal to a net and then net to signal again as many times you wish to
[12:16:10] <willburrrr2003> OK, will do
[12:16:45] <IchGuckLive> and is is also better for updating no syntax change on it and readabelity is also better
[12:16:49] <jthornton> willburrrr2003, the =<> mean nothing
[12:17:21] <jthornton> the first paragraph in the link "The command net creates a connection between a signal and and one or more pins. If the signal does not exist net creates the new signal. This replaces the need to use the command newsig. The optional direction indicators <=, => and <=> are only to make it easier for humans to follow the logic and are not used by the net command."
[12:18:12] <willburrrr2003> so there is no desingnation for direction in the net command?
[12:18:30] <jthornton> they mean nothing at all and can be left out
[12:18:33] <Tom_itx> i was told it's for visual purposes only
[12:19:40] <jthornton> the direction is fixed by the source and the destination pins
[12:20:26] <willburrrr2003> ok so if the source is an out, then it has to go to an in....and if the source is an in it has to be connected to an out?
[12:20:27] <IchGuckLive> i need to leve party time !
[12:20:39] <willburrrr2003> Seeyah IchGuckLive
[12:20:55] <jthornton> the source is always a writer or out
[12:21:32] <willburrrr2003> ok, so i need to write my lines with that in mind...will do
[12:21:54] <jthornton> think of the source as the light switch and the destination as the light bulb
[12:22:18] <jthornton> the bulb is controlled by the switch and you can have several bulbs if you like
[12:25:06] <jthornton> does the block diagram make sense to you?
[12:29:06] * jthornton will check back later
[12:30:00] <Tom_itx> nap time?
[12:31:11] <DJ9DJ> re
[12:31:26] <willburrrr2003> thanks guys, back to work now :)
[12:56:10] <Guest73270> Anyone used the raster engrave(laser) addon?
[13:16:09] <dosas> i have a problem getting my motors running
[13:16:23] <dosas> i have a driver which needs an enable signal
[13:16:37] <dosas> low means enabled
[13:16:43] <dosas> so i put this in my .hal
[13:16:49] <dosas> setp parport.0.pin-07-out-invert 1
[13:16:49] <dosas> net xenable => parport.0.pin-07-out
[13:17:14] <dosas> when i look in the halmeter while trying to move the x axis
[13:17:27] <dosas> i get a true false signal on xdir
[13:17:34] <dosas> but no change in xstep or xenable
[13:17:44] <dosas> xenable is always true
[13:20:28] <dosas> okay s.th is wrong with the pin invert
[13:20:41] <dosas> when i turn on the machine it switches from low to high
[13:20:49] <dosas> but it should be the otehr way round
[13:21:59] <dosas> setp parport.0.pin-07-out-invert 1
[13:22:06] <dosas> this should invert the pin right
[13:22:19] <dosas> so if xenable is true pin 7 should be low?
[13:26:56] <dosas> should the halmeter show a pin called parport.0.pin-07-out-invert
[13:35:13] <jthornton> parport.<p>.pin-<n>-out-invert is a parameter not a pin
[13:35:30] <dosas> yes i figured that one out in the man time
[13:35:33] <dosas> mean time
[13:36:11] <dosas> but waht i do not understand is why if the parameter is true
[13:36:19] <dosas> the pin is not inverted
[13:36:42] <jthornton> did you put the invert before the xenable
[13:36:45] <dosas> yes
[13:37:09] <dosas> do i have to laod a certain module for that
[13:38:09] <jthornton> look in show hal configuration and do a setp parport.0.pin-07-out-invert 0 then 1 and watch
[13:39:08] <dosas> already did thsi no difference
[13:41:12] <jthornton> how did you create your configuration files?
[13:41:44] <dosas> stepconf
[13:42:07] <dosas> and then i added the enable manually because stepconf has no option for enable
[13:42:22] <dosas> net xenable axis.0.amp-enable-out => stepgen.0.enable
[13:42:25] <dosas> i also have this line
[13:44:34] <jthornton> stepconf has amplifier enable or something like that IIRC
[13:44:54] <dosas> yes
[13:48:15] <dosas> okay if i measure the voltage on the output it is correct
[13:48:46] <dosas> but the driver stilll does not work but maybe because the card only gives 3.3V
[13:48:50] <dosas> :(
[13:49:51] <dosas> but if i use a self written c program i can run the motor and the driver jsut fine
[13:50:03] <dosas> so it can't b e that
[13:52:16] <Guest73270> I'm disliking linux already :(
[13:52:23] <dosas> no
[13:52:24] <dosas> don't
[13:53:05] <Guest73270> I'm running the laser raster engrave, but it says it can open <145> is there a log that might explain a little more?
[13:53:17] <Guest73270> can't*
[13:53:54] <dosas> sorry i do not understand your question
[13:54:27] <JT-Shop> http://www.linuxcnc.org/docs/html/common/Linux_FAQ.html#_bootup_messages
[13:55:29] <Guest73270> Sorry. I'm trying to run the raster engrave, when I load a Gcode file with o145 in it(to call external python script) it errors saying it can't open it. But doesn't say why.
[13:56:59] <Guest73270> https://github.com/bjj/2x_laser in the Raster Engrave section of the readme is an example
[14:03:13] <gene78> Guest, do you have that file in the directory specified by the .ini file, and do you own it?
[14:03:46] <JT-Shop> http://www.linuxcnc.org/docs/html/gcode/o-code.html#_calling_files
[14:04:13] <JT-Shop> are you following the rules for calling a file ^^
[14:06:07] <Guest73270> Will read now
[14:07:11] <gene78> JT-Shop, I just now got my hal file sorted to do a g33.1 in a peck loop, but my hal file is now 249 lines long!
[14:08:13] <JT-Shop> yikes!
[14:08:58] <gene78> Yeah, talk about not being able to see the fiorest for all them damned trees...
[14:09:07] <gene78> Yeah, talk about not being able to see the forest for all them damned trees...
[14:10:31] <gene78> 7 ( 3 more) and2 instances for instance, 3 edges and a one shot a not and a flipflop
[14:12:17] <gene78> Now I need to rig a switch to modify the dynamic braking resistor according to how fast I think its going. WHat is safe for the motor when stopping from 1500 revs, is not muich help from 200 revs doing a peck tap.
[14:12:48] <gene78> But it works, just takes about 5 seconds per spindle reverse due to the coasting
[14:13:21] <archivist> just adjust the drive to reduce the coast
[14:14:40] <gene78> This controller does gobble back emf well, specially when its disconnected from the motor and the resistor is doing the braking.
[14:14:58] <gene78> Its intended for a big honking 3.5 hp treadmill.
[14:15:39] <gene78> This ultrasonic pwm controller does NOT gobble back emf well, specially when its disconnected from the motor and the resistor is doing the braking.
[14:17:08] <gene78> I was going to do a constant current load, but can't find transistors with enough 2nd breakdown ratings
[14:59:35] <dosas> i cannot get my polou drivers to work
[14:59:48] <dosas> i can do it with a c programm but not with linux cnc
[15:00:05] <dosas> all i get is some noises if i try to move the axes
[15:00:25] <archivist> get the pulse widths correct
[15:00:40] <dosas> the ones from the wiki should be correct
[15:01:08] <archivist> and get the acceleration and max speed within spec for your motors
[15:01:55] <dosas> by width you mean step time and spcace?
[15:02:05] <archivist> yes
[15:02:55] <dosas> i will check acceleration and speed
[15:03:01] <dosas> i used the default
[15:03:29] <dosas> i am using 16 microsteps is that too mauch
[15:03:32] <dosas> much
[15:03:54] <archivist> I use half step
[15:04:03] <willburrrr2003> when I got my speed controller board up and running last year, I added a 3rd axis to my stepgen, set to velocity mode. I generated the PWM signal with stepgen, and I can vary my speeds ok. In the examples for closed loop spindle control, they show pwmgen used insted of stepgen... do I still need the3rd stepgen axis, if I use the pwmgen module?
[15:09:27] <dosas> okay i got the datasheet for my steppers but there is no acceleration or speed rating
[15:09:38] <dosas> do i have to calculate it, if how?
[15:10:17] <archivist> use a slow speed get stuff running and experiment
[15:10:30] <dosas> i'm unexperienced waht is slow
[15:12:23] <archivist> look for your style stepper and get some pull in rates from similar http://en.wikipedia.org/wiki/Stepper_motor
[15:13:51] <dosas> ty
[15:15:24] <archivist> pull in rate is the maximum step rate they will start at, else you just get a noise
[15:40:49] <JT-Shop> dosas: try something like 0.25 for max velocity and 2.5 for max acceleration (convert if your using metric)
[15:42:06] <JT-Shop> http://imagebin.org/261900
[15:45:12] <JT-Shop> http://imagebin.org/261901
[15:45:16] <JT-Shop> http://imagebin.org/261902
[15:46:22] <cradek> JT-Shop: awesome
[15:46:41] <JT-Shop> cradek: thanks, 3 spacers and I'm done
[15:56:42] <dosas> of course metric what else
[16:22:12] <DJ9DJ> gn8
[16:41:40] <Tom_itx> ninja star!
[16:42:41] <Tom_itx> doesn't look too overly engineered :)
[16:50:20] <R2E4_> Latex test max jitter 20927
[16:50:30] <R2E4_> Is that reasonable?
[17:01:27] <Guest73270> Is there a way to transfermy whole linuxcnc and configs from 1 pc to another. Decided to buy a new pc after spending days setting this one up.
[17:03:35] <PCW> move the hard drive
[17:04:34] <PCW> A20 cubieboard is out
[17:05:21] <Guest73270> I need the drive for the CNC, keeping that on mach and using linuxcnc for laser
[17:10:20] <Planetfuge> move the hard drive and use another for windows?
[17:10:43] <PCW> you and also just install linuxcnc on a new HD and copy the ~/linuxcnc directory
[17:11:18] <PCW> from the old system
[18:03:56] <Tom_itx> PCW, does this look normal for sserial on 4, 6 20 & 21 considering the board isn't wired yet?
[18:04:05] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/cnc/configs/sherline/bitfiles/dmesg.txt
[18:04:42] <Tom_itx> i had sserial_port set in the ini config line
[18:13:10] <R2E4_> anyone alive?
[18:14:23] <micges> maybe
[18:15:00] <R2E4_> howz 20927 max jitter
[18:16:06] <jdh> fine. Even better if you are using mesa
[18:16:27] <R2E4_> I am using 5i25 and 7i787
[18:16:37] <jdh> then it doesn't really matter
[18:16:41] <jdh> much
[18:18:46] <R2E4_> cool thanks
[18:20:58] <tjb1> Ello jdh
[18:21:42] <jdh> Good evening
[18:22:24] <tjb1> How have you been
[18:22:30] <tjb1> Been a while since I have been in here
[18:22:38] <jdh> pretty fucking excellent
[18:22:40] <jdh> and you?
[18:23:09] <tjb1> 2nd week at my job and living on my own now, getting better
[18:23:17] <tjb1> Be really good next friday when I get paid
[18:23:18] <jdh> cool
[18:23:21] <jdh> hardinge?
[18:23:37] <tjb1> Yep
[18:23:51] <jdh> money isn't everything, but I'd probably quit going to my job if they didn't pay me.
[18:24:07] <tjb1> Hard to pay rent without any ;)
[18:24:25] <tjb1> I had to load up a credit card pretty good to get up here and get started
[18:24:40] <jdh> that sucks
[18:25:05] <jdh> suck it up and pay it off as fast as possible even if you have to scrimp on things
[18:25:11] <jdh> like, food, etc.
[18:28:23] <Jymmm> tjb1: Top Ramen ; green onions, raw egg, sliced luncheon meat, carrots, celery, sliced pickled ginger, basil, bean sprouts, bok choy, cabbage, frozen veggies
[18:28:41] <tjb1> Jymmm: sounds expensive
[18:28:48] <tjb1> How about just ramen? :P
[18:29:05] <Jymmm> tjb1: not ALL of them, jsut whatever you have. frozen veggies are cheap
[18:29:16] <tjb1> I just eat lunch meat sandwiches
[18:29:20] <tjb1> eggos for breakfast
[18:29:34] <Jymmm> tjb1: You'll be hating that in about 21 days =)
[18:30:24] <Jymmm> tjb1: Just giving you some cheap eat ideas
[18:30:43] <jdh> credit cards suck
[18:30:52] <jdh> well, owing money on credit cards sucks
[18:30:58] <tjb1> Yep
[18:31:11] <tjb1> Jymmm: had hamburger helper yesterday and today
[18:31:16] <Jymmm> tjb1: Yeah, pay that shit off and hide it.
[18:31:32] <Jymmm> tjb1: That's not really cheap, jsut all carbs and grease.
[18:32:19] <tjb1> I didnt buy it
[18:32:26] <Jymmm> k
[18:32:39] <tjb1> :)
[18:33:15] <Jymmm> tjb1: Progresso canned soups go on sale for less than $2
[18:33:32] <tjb1> Is a sams club membership worth it?
[18:33:48] <Jymmm> tjb1: You need 85 toothbrushes?
[18:34:11] <Jymmm> tjb1: 50 lbs of rice?
[18:34:24] <tjb1> Nope
[18:34:24] <Jymmm> tjb1: Could save on meats though.
[18:34:44] <Jymmm> tjb1: Better if you have a friend with a membership you can tag along with once in a while.
[18:34:58] <tjb1> Don't know anyone here
[18:34:59] <jdh> I buy 8lb bags of rice there, it's great
[18:35:42] <jdh> I used a hardinge at work today
[18:35:43] <Jymmm> tjb1: ah. Also see if there's a "Smart and Final" in the area
[18:36:02] <jdh> or tried to anyway. The only boring bar I could find just burnished the ID instead of cutting it
[18:36:14] <Jymmm> tjb1: some of there stuff is cheap, orther stuff is expensive.
[18:36:18] <tjb1> Nope Jymmm
[18:36:41] <tjb1> jdh: watching a twin turn is pretty awesome
[18:36:52] <jdh> dunno what that is
[18:36:54] <Jymmm> tjb1: got an oven and freezer?
[18:36:59] <tjb1> Yes
[18:37:04] <tjb1> jdh: twin turrets and twin spindles
[18:39:00] <Jymmm> tjb1: They make a 80oz party size version of their meat lasagna for $15. Cook it, cut it, freeze it. It's really good stuff. So is their veggie lasagna.
[18:39:02] <Jymmm> http://www.michaelangelos.com/products
[18:39:28] <Jymmm> tjb1: All natural too
[18:39:45] <Jymmm> tjb1: in a GOOD tasty way.
[18:40:18] <Jymmm> tjb1: Not a vegan it really sucks sorta way =)
[18:40:27] <tjb1> jdh: http://www.modernapplicationsnews.com/articles/images/m01-240a1.jpg
[18:40:34] <tjb1> Jymmm: this at sams club?
[18:40:54] <Jymmm> tjb1: No, S&F or grocery store
[18:41:11] <Jymmm> tjb1: http://www.michaelangelos.com/store-finder
[18:41:24] <tjb1> sold at walmart
[18:41:54] <Jymmm> tjb1: the party size is like 18"x16"
[18:42:00] <Jymmm> Just fyi
[18:42:24] <tjb1> alright
[18:42:37] <jdh> I just meant... don't eat.
[18:42:49] <Jymmm> tjb1: buy a bag of bagged salad and you have a nice meal.
[18:43:53] <tjb1> jdh: they are really cool when both turrets are turning the same part
[18:44:12] <tjb1> Most parts, the finishing tool is following about .250" behind the roughing tool
[18:44:19] <jdh> heh, ours is just a non-turret manual
[18:44:35] <CaptHindsight> anyone ever order from http://www.trunniontable.com/?
[18:46:44] <tjb1> jdh: they have this one lathe that uses a vmc style tool changer…so expensive that only 4 have been made and 2 of them are in the plant
[18:50:12] <toastydeath> ...?
[18:50:20] <toastydeath> lots of lathes have a vmc toolchanger
[18:50:32] <toastydeath> cat 40/cat 50/hsk/vdi
[18:53:11] <tjb1> Hmm, I guess I didnt explain it correctly
[18:53:47] <toastydeath> a lot of mfgs also now have tool libraries for lathes
[18:54:05] <tjb1> It isnt a carousel, its like the chain/belt ones
[18:54:05] <toastydeath> 512, 1024 etc tool magazine that will feed multiple lathes and mills
[18:54:16] <toastydeath> yeah
[18:54:16] <tjb1> I can't remember name
[18:54:25] <toastydeath> magazine changer
[18:54:39] <tjb1> Yes
[18:54:50] <toastydeath> all the major machine mfgs have that option on their 5+ axis lathes
[18:55:10] <tjb1> Ill have to go see what the model of it is to find out all the goodies
[18:55:10] <toastydeath> some will have opposed turrets + one vmc spindle
[18:55:25] <toastydeath> and every single VTL/VBM in the past like 20 years has one
[18:55:49] <toastydeath> http://www.youtube.com/watch?v=a5StZYExpg0
[18:57:00] <tjb1> Ill find out tomorrow if I can
[18:57:10] <toastydeath> cool
[18:59:14] <sharpen047> hey was anyone here yesterday when i asked about swivel knives for vinyl cutting on a cnc mill?
[19:01:23] <sharpen047> anyway i found a program called tuxplot and its for vinyl cutters, works well and provides cutter compensation. outputs to gcode and can open with emc
[19:03:27] <toastydeath> nice
[19:21:43] <Jymmm> http://tv.yahoo.com/news/james-gandolfini---the-sopranos--star--dead-at-51-234433183.html
[20:03:52] <tjb1> I find it odd that they dont have machines like the twin turret/twin spindle track the position of the turrets and stop them if they will move to an interference position
[21:46:48] <Tom_itx> anyone here have a bridgeport series ii for conversion?
[21:47:14] <Tom_itx> digging for something else i ran across a set of schematics and service procedures for one
[21:47:25] <Tom_itx> forgot i even had them
[21:50:01] <CaptHindsight> http://www.ebay.com/itm/BRIDGEPORT-MACHINE-KNEE-MILLS-MANUAL-MILL-SERIES-II-NO-STAND-/271186394978?pt=US_Heavy_Equipment&hash=item3f23f7ff62
[21:50:59] <CaptHindsight> that price is high compared to a complete one http://www.ebay.com/itm/Bridgeport-Vertical-Milling-Machine-Series-II-4HP-/310692023997?pt=LH_DefaultDomain_0&hash=item4856b00ebd
[22:23:44] <eric_unterhausen> I have a series II
[22:24:00] <eric_unterhausen> I really wanted to work on it tonight, but I was really tired
[22:24:32] <eric_unterhausen> the series II head on ebay is pretty unique way of describing it. "no stand"
[22:24:44] <jdh> vs. "no mill"
[22:24:48] <eric_unterhausen> heads don't usually go for that much
[22:24:55] <jdh> s/tim\?/time/
[22:25:00] <jdh> <urk>
[22:25:49] <jdh> neither will that one
[22:26:14] <eric_unterhausen> I'm sure
[22:28:03] <PetefromTn> Anyone here using Cambam? I got a question about stock or material setup...
[22:31:54] <eric_unterhausen> ask your question and then we can sit around and pretend to be too busy to answer
[22:32:13] <skunkworks> yay - back to the hotel room.
[22:32:33] <jdh> waiting for the CLH to show?
[22:33:18] <PetefromTn> Well I am trying to do my first 3d cad cam programming here. I am using freecad which I much enjoy so far and trying to import into CamBam with my parts.
[22:33:55] <PetefromTn> The part I am making right now is kinda triangular and I need to designate stock for it from a block in the vise.
[22:34:23] <PetefromTn> I am not sure how to designate the block size so I can try to make CamBam figure out how to whittle it out of the block.
[22:34:57] <PetefromTn> The 3d toolpaths it has come up with for the shape so far look very good just need to get them to START at the outside of the stock..
[22:36:05] <PetefromTn> There is a tab in theSystem folder that is for materials but I cannot seem to open it.
[22:36:45] <PetefromTn> I am using a trial version as I am unsure if I want to order the software just yet but it is SUPPOSED to be fully functional for the first 40 tries.
[22:37:39] <Tom_itx> i may take them along friday when i show to see if anyone wants em
[22:38:12] <PetefromTn> Okay just figured out how to get the materials loaded but it seems like it is only for a general machining strategy rather than a stock size setup.
[22:38:14] <Tom_itx> skunkworks, long day?
[22:39:41] <Tom_itx> PetefromTn, you can install them side by side it says
[22:40:25] <PetefromTn> Huh? I don't understand...Do you use CamBam.. SO far they have LinuxCNC posts which is good
[22:40:36] <Tom_itx> no i don't use it
[22:41:02] <Tom_itx> i googled something on it this morning and read that though
[22:42:35] <PetefromTn> read what exactly I don't understand what you are talking about. What can you install side by side?
[22:42:47] <Tom_itx> the free and non free versions
[22:43:52] <Tom_itx> cambam and cambam plus
[22:45:01] <PetefromTn> I'm using the trial version of CamBam PLus
[22:45:34] <PetefromTn> Honestly it looks pretty good so far especially with the 3d stuff onboard. I will probably buy it if I can get some decent toolpaths here.
[22:45:54] <Tom_itx> it's only 150
[22:48:44] <PetefromTn> yeah nice right...
[22:48:50] <Tom_itx> still looks like a 2.5d package
[22:49:16] <PetefromTn> It has 3d waterline and several other strategies.
[22:49:59] <Tom_itx> what about surface blends etc?
[22:50:05] <skunkworks> Tom_itx: 9 hour drive and a few ours at mpm. Pretty good!
[22:50:17] <Tom_itx> skunkworks, which one are you staying at?
[22:50:47] <skunkworks> howard johnson near the air port. Cheap and seems to have everything.
[22:50:51] <Tom_itx> i think alot of them are full now
[22:51:34] <PetefromTn> dunno just opened it for the first time. Some folks have made some pretty incredible stuff with it tho from the looks of customers projects on their forum.
[22:54:17] <eric_unterhausen> I'm surprised that guy is still around, I remember when he started
[22:54:35] <Tom_itx> skunkworks, yeah there's a bunch of em all in a row along there
[22:54:57] <PetefromTn> what guy?
[22:55:06] <eric_unterhausen> the cambam guy
[22:55:12] <Tom_itx> heh
[22:57:27] <eric_unterhausen> wouldn't surprise me if it has been 10 years since he first put his VB code up, that's dedication for something that couldn't have made much money
[22:57:58] <PetefromTn> Honestly I just want to be able to do SOME 3d stuff with the VMC here, The Vast majority of the parts I make are all 2.5D and I have software that takes care of that stuff nicely.
[22:58:31] <Tom_itx> good 3d are gonna cost alot more
[22:58:44] <PetefromTn> At least until I start making some decent money with it.
[22:58:50] <Tom_itx> and multi axis even more
[22:58:57] <PetefromTn> Tom_itx: Of course it is...
[22:59:29] <PetefromTn> I am not a newbie here just don't have the coin for that stuff and doubt I would use much of it anyways.
[22:59:45] <Tom_itx> when my friend started he hired programmers
[23:00:11] <Tom_itx> then i got smartcam and started doing alot of it for him
[23:00:19] <PetefromTn> I do a lot of onesies and twosies that would get expensive. Besides I want to learn the 3d stuff anyways.
[23:00:53] <Tom_itx> back then smartcam, mastercam and surfcam were probably the top 3 picks
[23:01:10] <Tom_itx> i'm sure others have taken over the market now
[23:01:20] <PetefromTn> Seems lik CamBam is like you said a 2.5d program generally with some 3d functions. That is honestly all I need here for what I do.
[23:01:31] <Tom_itx> mastercam seems to be hanging on since it was 'grandfathered' in
[23:02:13] <PetefromTn> I have acces to Mastercam if I want it thru a friend but I honestly don't want to spend a lot of time learning a program I probably will never buy.
[23:02:54] <eric_unterhausen> I get the impression that Mastercam realized they were slipping and got their act together enough to stop the bleeding
[23:02:54] <PetefromTn> Anyways, I did not come on here to discuss the merits of Cambam just hoped someone here used it and knew the answers I wanted offhand.
[23:14:15] <PetefromTn> I think I just figured it out. For the 3d moves there is a boundary box option you can set the parameters on.