#emc | Logs for 2011-02-23

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[00:13:34] <JT-Shop> http://i47.photobucket.com/albums/f163/johnplctech/Shop%20Addition/P2120001.jpg
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[00:15:46] <emcrules_laptop> jt-shop, nice shop!!!
[00:17:40] <Tom_itx> it's falling apart
[00:18:20] <JT-Shop> thanks, you can come by any time
[00:18:41] <JT-Shop> actually it is falling together :P
[00:19:05] <Tom_itx> just saying i've seen further progress pics already :D
[00:19:28] <Tom_itx> i thought you might like roofing so much you started over
[00:21:42] <JT-Shop> not a chance, and that is the latest photo all the shingles on the East side are done WHEW!
[00:23:04] <JT-Shop> yea that is not the latest photo somehow
[00:23:10] <Tom_itx> you should have a start to finish webpage for it
[00:23:14] <JT-Shop> http://i47.photobucket.com/albums/f163/johnplctech/Shop%20Addition/P2220013.jpg
[00:23:35] <JT-Shop> they are all in my photobucket thingy
[00:23:41] <Tom_itx> oh, on the electric.. i'd put regular outlets around the perimeter every 6' or per code and then run ceiling drops for the machinery
[00:23:45] <JT-Shop> but a web page would be cool
[00:24:06] <JT-Shop> LOL there is no code in Swamp East Missouri
[00:24:11] <Tom_itx> i did one on my patio cover but the pics were all when i was done for the day so most are dark
[00:24:30] <Tom_itx> you running conduit or residential wiring?
[00:24:43] <JT-Shop> I am putting some outside outlets by the garage door this time
[00:25:02] <JT-Shop> can't make up my mind... I've done either in a past lifetime
[00:25:03] <Tom_itx> and one for the compressor and welder
[00:25:42] <JT-Shop> I'll have 220v single phase outlets all around for sure with 2 welders
[00:26:04] <Tom_itx> i backfeed mine during outages
[00:26:10] <JT-Shop> I'm thinking on putting in a 3-phase panel powered from my phase converter for the machines
[00:26:20] <JT-Shop> yea, me too
[00:26:41] <emcrules_laptop> what hardware does smithy base their controls on?
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[00:27:33] <JT-Shop> the first photo does show my truss crane that I slapped together
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[00:28:10] <JT-Shop> I used a boat winch and some scraps
[00:28:23] <JT-Shop> emcrules_laptop: dunno
[00:28:34] <Tom_itx> i flipped mine over the end and righted em one at a time
[00:28:38] <Tom_itx> what's the span?
[00:28:55] <Tom_itx> but i had a helper
[00:28:58] <JT-Shop> 32' kinda long for that trick by yourself
[00:29:03] <Tom_itx> yeah
[00:29:08] <Tom_itx> mine's only 24
[00:29:22] <JT-Shop> it would have taken 3 to do that with 32'
[00:29:32] <emcrules_laptop> we did that trick with 40' span and 3 people. let me tell you it sucked
[00:29:32] <JT-Shop> much too flexible
[00:29:52] <Tom_itx> yeah it works ok for smaller ones
[00:30:39] <JT-Shop> for one building I built a strongback down the center and we slid the trussed over the top and the strongback held the middle that was ok
[00:31:09] <JT-Shop> my shop is 10'5" so too tall for that trick
[00:31:48] <emcrules_laptop> looks good nice work!!!
[00:33:41] <JT-Shop> thanks
[00:33:50] <JT-Shop> I take pride in my work :)
[00:35:46] <emcrules_laptop> well looks like you have something to be proud of!!!
[00:37:04] <JT-Shop> thanks
[00:37:13] * JT-Shop heads inside to rest
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[00:46:35] <danimal_garage> hello
[00:46:35] <the_wench> hello danimal_garage, you have a question?
[00:52:09] <danimal_garage> If i did, would you have an answer?
[00:52:20] <danimal_garage> Didn't think so...
[00:52:25] <danimal_garage> :)
[01:04:08] <Tom_itx> hah
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[02:35:55] <Jymmm> alex_joni: Ah, ok. Cool beans, you'll have to tell me if it has any REAL benefit or not. still? motion? etc
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[02:52:23] <mikegg> with the 7i43 stepgen, how do you assign the step/direction to a particular pair of GPIO pins?
[02:53:23] <mikegg> right now it uses P3-01, and P3-03, how would I change that to like P4-035/037
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[02:59:19] <mikegg> do I have to edit the bit file?
[03:00:07] <pcw_home> Yep
[03:02:41] <mikegg> dang
[03:02:47] <pcw_home> but since you cant really edit the bit file the bit file needs tp be recompiled from source
[03:04:47] <mikegg> I'll just stick with P3-01 and 03
[03:05:48] <Tom_itx> no sense of adventure?
[03:06:01] <pcw_home> If you have a desired pinout, you can DL the PIN_XXXX_48,vhd files that matches you bit file from linuxcnc.org, modify it
[03:06:03] <pcw_home> and send it to me to recompile
[03:06:17] <L84Supper> http://www.edmundoptics.com/onlinecatalog/displayproduct.cfm?productID=1844 anyone have a better source for these?
[03:08:36] <L84Supper> 80 TPI lead screw single axis positioner with 0.5 um accuracy
[03:10:30] <mikegg> thanks pcw, my P4 goes to an opto-22, so I think it will be easier to remove and jumper out the two modules
[03:12:01] <mikegg> where are the vhd files anyway, I can't find them
[03:12:40] <pcw_home> Its really not too hard to change
[03:12:42] <pcw_home> http://git.linuxcnc.org/gitweb?p=hostmot2-firmware.git;a=summary
[03:13:07] <Tom_itx> what chips are they?
[03:13:09] <Tom_itx> xilinx?
[03:13:14] <Tom_itx> or something else
[03:13:24] <pcw_home> Xilinx
[03:13:48] <Tom_itx> you don't post the full code for them do you?
[03:13:53] <Tom_itx> I wouldn't think so
[03:14:09] <pcw_home> Sure its all GPLed
[03:14:15] <Tom_itx> huh
[03:14:18] <Tom_itx> cool
[03:15:25] <Tom_itx> if you go changin pins around much do you need to worry about timing?
[03:16:29] <pcw_home> No, theres lots of margin on most of the designs
[03:19:02] <pcw_home> I cant think of when I last had one not meet timing, been a while (many are pretty full however so may need compilation tweaks to fit)
[03:20:38] <Tom_itx> who does most of the board design there?
[03:20:49] <Tom_itx> what cad package do they use?
[03:21:01] <pcw_home> I do some
[03:21:12] <emcrules_laptop> Anybody up to a hal_input teaser?
[03:21:31] <pcw_home> Pads - which I guess is Mentor now
[03:21:38] <Tom_itx> yep mentor graphics
[03:21:48] <Tom_itx> i've played with it a bit but use eagle
[03:22:21] <pcw_home> I found the eagle user interface hostile...
[03:22:51] <Tom_itx> i think they all take time to master
[03:23:30] <pcw_home> Yep
[03:23:58] <Tom_itx> pads has alot more 'pro' features
[03:24:57] <pcw_home> I still use the ancient DOS PADs for layout where autorouting is not needed
[03:25:14] <Tom_itx> i cringe at autorouters
[03:25:59] <pcw_home> They are really only useful where you can spare layers to buy time
[03:28:57] <pcw_home> With FPGAs / CPLDs autorouting is less useful since you can optimize the pinout
[03:28:59] <pcw_home> We mainly use autorouting for custom work
[03:30:16] <pcw_home> Also a good autorouter will let you do a hand routing feasibility test in a few minuts
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[03:31:46] <Tom_itx> i haven't done anything very complex yet but i'll sometimes use it to get an idea for part placement
[03:32:03] <Tom_itx> then rip it up and hand route most of it
[03:35:17] <pcw_home> theres really no substitute for hand routing
[03:35:18] <pcw_home> (which is even better if done by the engineer who did the design and has the schematic in front of them)
[03:35:32] <Tom_itx> absolutely
[03:37:04] <pcw_home> we've sent some things out to the "connect the dots" hand routers but usually had to do so much cleanup that it wasn't worth it
[03:39:10] <Tom_itx> who does your boards if you don't mind me asking
[03:39:19] <Tom_itx> i generally use GP
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[03:40:06] <pcw_home> We have a couple Taiwanese and Chinese sources that are pretty good
[03:40:10] <Tom_itx> i'm always on the lookout though
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[03:41:41] <pcw_home> For low/medium volume stuff we usually do multi up 4 and 6 layer panels (maybe 15-20 cards/panel)
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[03:44:53] <pcw_home> No 2 layer stuff anymore, if we have it we just add it to 4 layer panel with the inner layers dropped
[03:45:20] <Tom_itx> yeah probably not with all the cpld routing stuff
[03:46:35] <Tom_itx> makes em cost more but it's probably a wash in the end
[03:48:01] <pcw_home> 4 layer cards are so much easier to layout and so much better electrically,
[03:48:03] <pcw_home> I would not bother doing a 2 layer unless it was high volume and had to be as cheap as possible
[03:48:31] <Tom_itx> you keep the signals inside and put the power on the outside right?
[03:48:44] <Tom_itx> do you put gnd on top or bottom?
[03:48:55] <pcw_home> no the opposite
[03:49:01] <Tom_itx> hmm
[03:49:10] <Tom_itx> well i suppose that makes sense too
[03:49:16] <Tom_itx> since it would shield them better
[03:49:24] <pcw_home> you want the power and ground planes close together for lowest impedance
[03:50:05] <Tom_itx> i don't think gp does hidden vias, at least not on the prototype service
[03:50:36] <pcw_home> Our standard layup is top trace, ground plane, VCC plane. bottom trace
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[03:51:55] <pcw_home> We have not used buried vias though there is a chip we are thining of using the requires them
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[03:52:54] <pcw_home> thinking of using that
[03:53:15] <pcw_home> no more wine for me...
[03:53:35] <Tom_itx> heh
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[03:56:35] <Tom_itx> oh cool, i got more blue boxes today to machine now
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[04:18:36] <L84Supper> Tom_itx : do you use Allegro for PCB layout?
[04:20:58] <L84Supper> sorry I meant this for pcw_home: do you use Allegro for PCB layout?
[04:31:13] <Tom_itx> i think he said pads
[04:31:18] <Tom_itx> which is mentor graphics
[04:33:53] <Tom_itx> cool, atom board should be here fri
[04:34:23] <L84Supper> yeah Pads is Mentor
[04:34:55] <Tom_itx> i didn't spend much time with it but it seemed complicated to me
[04:35:20] <L84Supper> heh... take a look at Allegro by Cadence
[04:35:26] <Tom_itx> i've heard
[04:35:43] <Tom_itx> dean aka abcminiuser used it at his uni
[04:36:03] <Tom_itx> but then i've been using eagle since about ver 2.xx
[04:36:49] <Tom_itx> i don't do it commercially though, just a few here and there
[04:36:55] <Tom_itx> i peddle a few
[04:37:01] <L84Supper> I've been pretty much Orcad, Cadence and Allegro since the 80's
[04:39:05] <L84Supper> I never get an easy board to layout :(
[04:39:26] <Tom_itx> a friend uses pads for mobile power amps
[04:39:43] <Tom_itx> mostly
[04:40:29] <L84Supper> I mostly layout 8-12 layer server and embedded motherboards
[04:44:06] <Tom_itx> this stuff would be a breeze compared to that then
[04:44:23] <L84Supper> controlled impedance and dielectrics with bus trace lengths that have to be matched to within .5mm
[04:44:38] <Tom_itx> yup
[04:44:49] <Tom_itx> that's where the high end cad packages shine
[04:45:29] <L84Supper> they automate much of it
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[04:46:45] <L84Supper> I can spend 2 weeks setting up the autorouter and get a board 100% that will need maybe 5% of cleanup and tweaking in an hour
[04:48:50] <L84Supper> just for fun I rerout old boards that took days back in the 90's to autoroute, that now take a only a few minutes
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[05:08:07] <mrsunshine> is there anywhere i can read about setting up modbus and required hardware etc for emc2?
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[05:13:20] <L84Supper> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ClassicLadder_Ver_7.124#Modbus besides this?
[05:16:42] <mrsunshine> ye something that is more comperhencable by a noobie :P
[05:18:41] <ds3> okay, I am getting to really really really really hate acrylic
[05:19:58] <mrsunshine> stuff like, do i need a level converter? :) and the whole hassle with stuff like it seems modbus can go rs232, rs485
[05:27:19] <mrsunshine> from th elooks of the manual i can do rs232 to it, but im not 100% sure .. and as it has higher voltage levels i dont wantt o damage the device :P
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[05:32:10] <L84Supper> mrsunshine: modbus is a serial protocol and generally over RS-485 but you could run it on other serial systems
[05:32:28] <mrsunshine> ye but modbus is +5 - -5V
[05:32:32] <mrsunshine> wait
[05:32:34] <mrsunshine> rs485
[05:32:38] <L84Supper> what hardware are you using?
[05:32:41] <mrsunshine> while rs232 is -14 to +14V :PO
[05:32:47] <mrsunshine> L84Supper, yaskawa j1000 vfd
[05:34:57] <L84Supper> yaskawa is 1/2 hr from me
[05:35:14] <mrsunshine> heh =)
[05:36:19] <L84Supper> trying to find their data sheet
[05:37:15] <L84Supper> http://www.scrcontrols.com/docs/TM.J1000.01.pdf is this the one??
[05:37:21] <mrsunshine> http://www.huppertz.nl/BESTANDEN/omron/uitgebreide_handleidingen/uitgebreide_handleiding_J1000.pdf
[05:37:25] <mrsunshine> for example :P
[05:37:41] <mrsunshine> ill check
[05:37:58] <mrsunshine> aye
[05:39:00] <mrsunshine> oh
[05:39:04] <mrsunshine> its on optional units
[05:39:06] <mrsunshine> it seems :/
[05:39:23] <L84Supper> Interface for RS-422/485 communications using the MEMOBUS/Modbus RTU protocol -- from the pdf
[05:40:20] <mrsunshine> mm so i would have to get a rs232 -> rs485 interface then
[05:40:57] <L84Supper> not sure yet, I'd have to see the spec more since it's not exactly clear
[05:42:06] <L84Supper> if you have the modbus module then it says it is rs-422 or rs-485 selectable
[05:42:44] <L84Supper> starts somewhere about page 197 of the pdf I linked above
[05:42:53] <mrsunshine> ahh so i need an extra module for that also :P
[05:42:54] <mrsunshine> sigh
[05:43:00] <mrsunshine> i guess pwm and low pass is the way then :P
[05:43:25] <L84Supper> there is also a serial port but I don't know if that supports the modbus
[05:44:16] <L84Supper> RS232C communications interface to connect the drive to
[05:44:16] <L84Supper> a PC or the optional copy unit
[05:44:24] <mhaberler> all you need is a 75176 ic
[05:45:59] <mhaberler> like so: http://www.kmitl.ac.th/~kswichit/PC485/PC_Rs485.html
[05:46:02] <L84Supper> mrsunshine: what hardware are you using on the EMC2 PC?
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[05:46:12] <mrsunshine> what hardware?
[05:46:13] <mrsunshine> as in ?
[05:46:38] <L84Supper> yaskawa j1000 is the device you wish to control
[05:47:16] <L84Supper> are you going to use EMC2 with a modbus interface to control the yaskawa j1000?
[05:47:21] <mrsunshine> yes, from pereferably the serial port on the computer
[05:47:26] <mrsunshine> L84Supper, i was thinking of it
[05:47:38] <mrsunshine> but if i need an optional module for the vfd its worse
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[05:50:39] <L84Supper> fwd rev run/stop fault may be controlled via 24V logic
[05:51:31] <mrsunshine> L84Supper, can set it to be -10v (full rev) to 10v (full forward) and 0v is stop as far as i get it also? :)
[05:51:42] <mrsunshine> so could be pwn controlled, so 50% duty is stop :P
[05:52:01] <L84Supper> the serial rs-232 and the rs-422/485 all appear to be options
[05:52:45] <L84Supper> page 51 has the control wiring diagram
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[05:54:09] <L84Supper> they list 0-10V not -10V - +10V
[05:54:23] <mrsunshine> wth, stupid generic datasheets in that case
[05:54:43] <mrsunshine> the one i read from where i bought i can set 0 - 10v, -10 to 10v, 4-20ma, 0 - 20ma
[05:55:09] <mrsunshine> L84Supper, what datasheet are you on ?
[05:55:18] <mrsunshine> page 51 doesnt show any wiring diagrams for me :P
[05:55:21] <L84Supper> http://www.yaskawa.com/site/dmdrive.nsf/link2/MHAL-7FRTX9/$file/TOEPC71060626.pdf
[05:56:20] <L84Supper> http://www.scrcontrols.com/docs/TM.J1000.01.pdf has the diagram on page 34
[05:57:03] <L84Supper> http://www.huppertz.nl/BESTANDEN/omron/uitgebreide_handleidingen/uitgebreide_handleiding_J1000.pdf page 32 here
[05:57:20] <mrsunshine> heh :P
[05:57:29] <L84Supper> your pic
[05:57:55] <L84Supper> looks simple enough with the right pdf
[06:00:39] <mrsunshine> 1: 0 to +10 V, bipolar input (negative
[06:00:40] <mrsunshine> frequency reference changes the direction)
[06:00:44] <mrsunshine> thats the one i was talking about
[06:09:31] <mrsunshine> heard that the pwmgen can generate pwm on a parport pin for me, put that into a voltage doubler/lowpass active filter and the signal should be good to go :P
[06:09:46] <mrsunshine> (that is, a active low pass filter that doubles the voltage :P )
[06:10:02] <mrsunshine> http://www.hoelscher-hi.de/hendrik/light/demux/demux.gif
[06:12:28] <mrsunshine> or, i guess, its a low pass filter + voltage follower :P
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[06:47:15] <L84Supper> mrsunshine: yeah, pwm off the PP will work
[06:48:17] <L84Supper> be sure to optoisolate, a PP port is a terrible thing to waste
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[08:05:37] <alex_joni> Jymmm: for still not really
[08:05:54] <alex_joni> except maybe using it as a tripod
[08:06:01] <Jymmm> ah
[08:06:02] <alex_joni> for motion there is some difference
[08:06:08] <alex_joni> the only thing that
[08:06:18] <alex_joni> the only thing that's a bit frustrating is pushing the record button :)
[08:07:13] <alex_joni> you have to let go of one hand for that (or grab the top handle with the other)
[08:07:26] <alex_joni> and changing hand positions causes some wobble in the image
[08:08:16] <Jymmm> heh
[08:16:43] <Jymmm> alex_joni: So, you getting more into video now?
[08:23:32] <mrsunshine> L84Supper, aye its optoisolated from the bob =)
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[08:31:42] <alex_joni> Jymmm: starting to
[08:31:58] <alex_joni> that was one of the reasons I got the camera for ;)
[08:32:11] <alex_joni> at least one of the reasons my wife agreed with
[08:32:23] <Jymmm> LOL (PW)
[08:32:40] <alex_joni> PW?
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[10:32:56] <alex_joni> Jymmm: I just remembered why I didn't do chemical welding for the pipes
[10:33:02] <alex_joni> they wouldn't fit as they were
[10:33:11] <alex_joni> I would have used glue/whatever if they would have fit
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[11:57:12] <skunkworks> alex_joni: usually - the chemical makes the pipes fit. (most of the pvc piping I have done - they don't fit together until the glue is applied)
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[12:14:28] <skunkworks> it melts it and lets it ooze together
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[12:45:06] <alex_joni> skunkworks: hmm, ok.. never used that system
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[13:20:29] <Paragon39> Hello All!
[13:21:29] <archivist> long time no see
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[13:52:24] <JT-Shop> Good Morning guys
[13:52:43] <kb8wmc> good morning JT
[13:54:47] <alex_joni> howdy jt
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[13:54:57] <JT-Shop> howdy Alex
[13:55:15] <JT-Shop> good morning kb8wmc
[13:56:17] <JT-Shop> rain and cool here today
[13:57:19] <alex_joni> we got snow
[13:57:26] <alex_joni> didn't stick though
[13:57:44] <JT-Shop> I've had enough snow for this winter
[13:58:24] <Als> 150" + this year for us
[13:58:41] <JT-Shop> yuck
[13:59:08] <Als> only half way through
[13:59:30] <JT-Shop> where are you located Nome?
[13:59:38] <Als> syracuse
[14:00:24] <Als> we get most of our snow in march
[14:00:46] <Als> just wondering is the emc logger dead?
[14:01:16] <JT-Shop> it is a lot
[14:01:47] <Als> hasn't logged in 10 days
[14:02:01] <JT-Shop> psha: has one that is usually on
[14:02:35] <kb8wmc> we have sunshine and about 1/2" of frost on everything above ground
[14:02:41] <mhaberler> logger[mah]: hi
[14:02:41] <logger[mah]> mhaberler: Log stored at http://emc.mah.priv.at/irc/%23emc/2011-02-23.html
[14:02:46] <kb8wmc> sure is pretty
[14:03:03] <Als> thanks
[14:07:24] <psha> JT-Shop: time to catch SWPadnos and set up log uploads :)
[14:07:37] <JT-Shop> me?
[14:07:42] <psha> no, me :)
[14:07:48] <JT-Shop> :)
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[14:19:24] <mhaberler> psha: I guess we need to finish the "finished" logging project for good ;-)
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[14:22:35] <psha> what's left?
[14:22:47] <psha> search is working, you may clone it
[14:23:02] <psha> at least i'm satisfied with it
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[14:32:08] <Paragon39> OT Question... I am looking to heat my workshop via a multifuel pot belly stove but am unsure what Kw size to go for. The WS is 16'x7'x7' aprox does anyone have any ideas or experience with these heaters?
[14:33:50] <JT-Shop> I heat with wood but how well your sealed off and insulated will have a lot to do with the choice
[14:35:07] <JT-Shop> I just read your size and it is like a small garage... it won't take much to heat that if you have any insulation unless you live in Nome
[14:37:55] <Paragon39> JT-Shop: I agree, my shop is not that well insulated for example the roof is of the plastic corragted type. I live in the UK... Ive seen some pot belly stoves on ebay for 99ukp which are rated at 6Kw the 3Kw are aprox same price. Would the 6Kw cost more to run if the WS shop only requires say 3Kw output or can they be ajusted for heat output?
[14:38:22] <Paragon39> http://cgi.ebay.co.uk/NEW-POT-BELLY-CAST-IRON-STOVE-6KW-/250766975425?pt=UK_HG_FireplacesMantelpieces_RL&hash=item3a62e061c1
[14:43:42] <JT-Shop> yea, you can close off the dampers as your shop warms up
[14:44:20] <JT-Shop> keep in mind the most heat will be lost through your plastic roof as heat rises, so some insulation would be a big help
[14:46:44] <Paragon39> Yes I think I should invest in a more acceptable roof. I have been using a gas fire but this causes dampness which has caused some service rust to appear on the lathes and mills. Hence why I am looking at this option... Plus it's quite rustic and cozy :-)
[14:47:33] <JT-Shop> wood heat will keep your shop dry, I sometimes burn some in my heater when damp but not really cold
[14:48:41] <Paragon39> I guess one can turn the damper down and let it tick over through the night which will help stay off moisture?
[14:49:01] <JT-Shop> that's what I do when it is real cold
[14:49:18] <JT-Shop> usually it will last through the night
[14:50:13] <JT-Shop> this is the one I'm using in my garage/shop
[14:50:15] <JT-Shop> http://www.northerntool.com/shop/tools/product_200369863_200369863
[14:50:32] <Paragon39> Excellent... Thanks JT-Shop
[14:50:54] <JT-Shop> this is the one I have for my new shop http://www.northerntool.com/shop/tools/product_346054_346054
[14:51:14] <Paragon39> wow thats some heater :-)
[14:51:51] <JT-Shop> don't forget you need a stone or concrete floor and if close to a wall a heat reflector
[14:53:40] <Paragon39> I have a concrete floor but thanks for the heads up re wall heat reflector... Gotta go as the wife requires a blind to be put up :-( ... Thanks Again!
[14:53:54] <JT-Shop> ok
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[15:22:34] <JT-Shop> Jymmm: has some competition now in the EMC world
[15:22:45] <JT-Shop> http://www.linuxcnc.org/component/option,com_comprofiler/task,userProfile/Itemid,17/user,2799/lang,english/
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[16:00:49] <atmega328> any thoughts on CNC'ing an X2?
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[16:03:12] <cradek> if it's the machine I'm thinking of, jon elson has one that he cnced
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[16:09:36] <atmega328> yep, that looks like one.
[16:11:01] <atmega328> Grizzly still refuses to sell me the bigger one I wanted, but I found one of these locally for half the price with vise, endmills, R8 collet set
[16:11:35] <JT-Shop> they don't like you?
[16:11:39] <cradek> what do you plan to do with it?
[16:12:18] <atmega328> they don't like me paying via paypal, nor living closer to the PA warehouse than the MO one
[16:12:59] <atmega328> I have vague ideas of light aluminum & brass cutting, but mostly Delrin
[16:13:20] <JT-Shop> heh
[16:13:33] <cradek> ah, might be adequate then
[16:13:50] <cradek> from seeing jon's cut aluminum, it's not a stout machine
[16:14:19] <atmega328> Yeah, I doubt you can get much rigidity out of something that size
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[16:31:02] <JT-Shop> a buddy of mine bought 2 manual mills from them and the X axis lead screw nuts were worn out in 6 months... I'm not very impressed with their mills
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[16:33:33] <JT-Shop> they have cnc now http://www.grizzly.com/products/CNC-Mill-w-12-Position-ATC/G0618
[16:40:07] <cradek> love that pc keyboard
[16:41:18] <archivist> cost of the 4th axis!
[16:41:24] <cradek> no jogwheel!?
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[16:42:52] <pcw_home> DC servos on new 45K mill? how quaint...
[16:43:41] <cradek> we're all cnc snobs
[16:44:14] <archivist> c3 grade ball screw...isnt that a rattling not top of the range spec
[16:45:16] <pcw_home> especially me since all Ive got is a hacked wafer prober+dremel with servo motors the size of walnuts
[16:45:28] <JT-Shop> LOL
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[16:46:01] <archivist> hehe and mine is home brew fugly
[16:46:30] <JT-Shop> I think yours is a work of art archivist
[16:46:39] <atmega328> grizzly told me they would sell me a G0704 when the next batch comes in (Apr 29)
[16:46:55] <JT-Shop> yea that keyboard must be real good for carpel tunnel
[16:46:55] <archivist> april 2029?
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[16:47:06] <atmega328> well, she didn't specify a year
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[16:47:13] <archivist> :)
[16:47:17] <atmega328> you can't back-order with paypal
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[16:47:39] <skunkworks> that looks like a tormach..
[16:48:09] <archivist> I think the chinese stuff gets dressed in lots of clothes
[16:48:34] <atmega328> they have a few other CNC mills... rigid tapping is a $900 add-on to the software
[16:48:59] <JT-Shop> the G0704 looks like it might get you close when your drilling holes...
[16:49:37] <atmega328> JT: there are some pretty impressive videos of them doing aluminum
[16:50:26] <JT-Shop> did they measure the part after or just make some chips fly?
[16:50:35] <atmega328> just making chips
[16:50:47] <archivist> measuring costs extra
[16:50:57] <atmega328> and requires tools
[16:51:10] <JT-Shop> accuracy cost you even extra
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[16:52:45] <archivist> my old worn southbend managed a .0000 on my vernier yesterday making a little tool for the press
[16:52:59] <JT-Shop> I've seen all their stuff up close ( I live 4hrs from their MO store)
[16:53:54] <archivist> we see the stuff dresses as Warco or Chester machine tools
[16:54:00] <archivist> dressed
[16:54:42] <archivist> arc euro trade also brings in stuff but does some re manufacture
[16:56:15] <JT-Shop> probably most comes from the same factory in China
[16:57:02] <archivist> some tooling is indian and not the same as the chinese tooling
[16:57:16] <JT-Shop> better or worse?
[16:57:51] <archivist> low cost indian being less good at the moment
[17:00:12] <JT-Shop> the few times I went to Taiwan I was impressed with the cottage industry... a guy with one machine and a bicycle in a small garage. He would do one Op on a part and when he was finished he would put them on his bicycle and pedal over to the next shop if it was not next door
[17:00:53] <atmega328> gives new meaning to 'lean manufacturing'
[17:01:37] <JT-Shop> some places I visited you had to walk down a dirt trail to get to the small room where a little old lady was running nail collating machine and the nails were in baskets
[17:04:32] <JT-Shop> the factory where they made the wire weld collators had a dirt floor and the owners Mom would cook lunch for everyone... didn't know what I was eating but it was good
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[17:48:50] <Jymmm> hey lawrence
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[19:08:45] <cpresser_> since a lot of skilled people are here, can someone please give me a hint?
[19:08:46] <cpresser_> http://nopaste.info/f2cc12f69d.html
[19:09:00] <cpresser_> how do i assign values to the variable buf?
[19:09:28] <cradek> buf[0] = 0x12;
[19:09:37] <cradek> you can only use {...} to initialize them
[19:10:36] <cradek> you could also use something like strncpy(buf, "\x12\x23\x34", 3);
[19:11:16] <cradek> what are you actually trying to do? what's the bigger picture about your program?
[19:11:33] <archivist> I was about to say not enough info
[19:11:40] <cradek> yes
[19:11:49] <cradek> your question makes me think you're doing something weirdly
[19:12:00] <cradek> so if you say what problem you're trying to solve, maybe someone can help with that
[19:13:24] <archivist> as no mention of language and what types you are setting etc
[19:13:35] <kb8wmc> cradek: I am enjoying using your LISP app
[19:13:54] <cradek> archivist: pastewhatever says it's C...
[19:13:58] <cradek> kb8wmc: yay
[19:14:03] <kb8wmc> lol
[19:14:30] <cradek> no really - I'm happy to hear someone is using it without sending me dumb emails about how they haven't read the instructions
[19:14:42] <kb8wmc> lol
[19:14:46] <cpresser_> its quite a simple problem
[19:15:03] <kb8wmc> yep, I was able to run with your instructions
[19:15:05] <cpresser_> i want to send some data to a serial device: write(buf,len)
[19:15:36] <cradek> cpresser_: where does the data come from?
[19:15:58] <cpresser_> i think strncpy is the way for me to go
[19:16:07] <cpresser_> the data is actually fixed with defines
[19:16:13] <cradek> I doubt it :-)
[19:16:29] <cpresser_> i have about 12 fixed words of 19 bytes. that is all
[19:16:41] <cradek> then make 12 bufs 19 bytes long
[19:16:44] <kb8wmc> cradek: I still have problems with the ARRAY command, but that is on me, not your instructions, memory going I guess, and it is not a command that I have ever really used a lot...
[19:16:45] <cradek> copying them around is dumb
[19:17:09] <archivist> cpresser_, just point the routine at the string addresses
[19:17:35] <cpresser_> thats also a good idea, archivist. i could put all my data in one bigger variable
[19:17:35] <cradek> char *command1 = "COMMAND 1 IS HERE";
[19:17:44] <cradek> char *command2 = { 0x11, 0x22 };
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[19:19:29] <archivist> add a \0 or count if variable length
[19:20:00] <cradek> yes, you have to deal with lengths somehow
[19:20:07] <cradek> but if they are always 19 long, that's easy
[19:20:32] <psha> archivist: o/ \o and \o/ variables are cool :)
[19:21:30] <cpresser_> thanks for the input
[19:21:30] <archivist> Im more used to doing it in assembler than C
[19:21:45] <cpresser_> i am glad, i didn try to be a progammer :)
[19:22:02] <archivist> can be fun
[19:22:15] <archivist> can be frustrating in the extreme
[19:23:41] <cpresser_> i am quite firm with Java, but you dont have to deal with pointers there. so its easy for me :D
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[20:23:48] <danimal_garage> hi
[20:23:49] <the_wench> hello danimal_garage, you have a question?
[20:25:04] <alex_joni> Jymmm: now it's done.. added a quick release
[20:25:10] <alex_joni> http://juve.ro/blog/projects/01298387572
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[20:26:19] <Jymmm> cool
[20:26:40] <Jymmm> some of those quick release "catch" and are a pita
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[20:37:46] <alex_joni> Jymmm: this one seems to work ok so far
[20:38:26] <Jymmm> alex_joni: ok, just wnted you to be aware of that. almsot droped a camera a cuple of times fighting the quick release before
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[20:52:51] <ries> KimK: ?
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[20:54:28] <KimK> Hi ries, you're probably wondering about the emails?
[20:54:38] <ries> yup!
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[20:56:46] <KimK> I have received replies from all three that I needed. I'll try to get back to that project as soon as I can, maybe later today or tonight? I'll let you know when it's done.
[21:00:49] <ries> ok thanks
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[21:23:44] <danimal_garage> so i may be in the market for another mill
[21:24:22] <danimal_garage> i'd like to find me a mori like cradek's, but probably not gunna happen
[21:24:27] <seb_kuzminsky> i hear you can make them easily using mdf and skate bearings
[21:24:39] <JT-Shop> you need bigger Dan?
[21:25:21] <JT-Shop> darn linuxcnc.org is down
[21:25:38] <seb_kuzminsky> it's working for me
[21:25:38] <danimal_garage> not so much bigger, just another
[21:25:53] <danimal_garage> faster would be nice
[21:26:09] <danimal_garage> 10k+ spindle speeds would be awesome
[21:26:19] <JT-Shop> there it works now
[21:26:23] <JT-Shop> with a tool changer
[21:26:25] <danimal_garage> yes
[21:26:32] <danimal_garage> a toolchanger is a definite
[21:26:42] <danimal_garage> probably not another knee mill
[21:26:54] <danimal_garage> the shizuoka works fine, but it's limited
[21:27:31] <seb_kuzminsky> after using a bp series 1 for about a year, i wish it had a tool changer, twice the z travel, and an enclosure
[21:27:39] <seb_kuzminsky> oh yeah, and a 10k spindle
[21:27:40] <danimal_garage> yea
[21:28:09] <danimal_garage> my shizuoka has a toolchanger and a semi enclosure and a 6k spindle, but still...
[21:28:20] <JT-Shop> I like my Discovery 308 even if it is a bit small for a VMC
[21:28:31] <cradek> I bet everyone who has any mill wants a faster spindle on it
[21:29:09] <danimal_garage> lol cradek, true
[21:29:19] <danimal_garage> 15k-20k would be awesome
[21:29:37] <archivist> bits fly faster :)
[21:30:15] <JT-Shop> I just want some new caps so my spindle will go from 0-6000 in one step :)
[21:31:38] <danimal_garage> i want an employee so i dont have to work
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[21:33:47] <seb_kuzminsky> hi anders, how goes the 3d printing?
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[21:37:49] <danimal_garage> how are those little hurcos?
[21:37:56] <danimal_garage> i heard them mentioned a few times in here
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[21:59:56] <danimal_garage> i may have found a working mori jr
[22:17:10] <robh__> empty in here tonight
[22:18:40] <robh__> any one know away to stop an axis being draw on the backplot window in axis?
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[22:38:35] <alex_joni> whee
[22:38:35] <skunkworks> heh
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[22:38:39] * bill20r3 wonders where his usb joystick went off to.
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[22:38:43] <JT-Shop> it's over there next to the whatchamacallit
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[22:38:43] <bill20r3> thanks.
[22:38:43] * bill20r3 looks for the whatchamacallit
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[22:38:48] <alex_joni> bill20r3: that's easy, just next to the joystick
[22:38:49] <bill20r3> awesome, thanks.
[22:38:51] <JT-Shop> hey it might be next to my crowbar... I lost it for a couple of months and Alex found it
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[22:38:57] <alex_joni> I found the small crowbar iirc
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[22:39:04] <danimal_garage> robh__, not sure if you got your answer before i got booted, but you put (AXIS,stop) in your nc file
[22:39:04] <danimal_garage> at the top
[22:39:04] <danimal_garage> no spaces
[22:39:05] <danimal_garage> i've had mixed success with it though
[22:39:05] <danimal_garage> some programs it only works for part of it, and shows the rest
[22:39:07] <danimal_garage> cradek, what do you think a working hearly mori jr is worth?
[22:39:07] <danimal_garage> healthy*
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[22:49:10] <JT-Shop> http://cgi.ebay.com/Haas-VF-5B-40-VMC-2005-Sidemount-40ACT-10K-RPM-/310298369963?pt=LH_DefaultDomain_0&hash=item483f395fab
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[22:50:49] <JT-Shop> http://cgi.ebay.com/Bridgeport-VMC-769-22-end-users-floor-/350432149353?pt=BI_Mills&hash=item5197623f69
[22:52:58] <JT-Shop> that last one is similar to mine but newer
[22:53:02] <JT-Shop> and bigger
[22:53:22] <Jymmm> That's what SHE said
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[22:53:51] * JT-Shop quits looking on flea bay before he buys something
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[23:00:27] <Jymmm> JT-Shop: GIT ROOF DONE!
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[23:07:11] <danimal_garage> my limit is probably 5k, those are a bit out of my range
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[23:07:27] <danimal_garage> i'm kinda looking for an emc candidate
[23:09:21] <danimal_garage> i think i found a glitch in 2.5
[23:09:39] <danimal_garage> every once in a while, hitting "r" doesnt get it to run
[23:09:57] <danimal_garage> i actually have to use the mouse and hit the play button
[23:10:03] <danimal_garage> it's pretty intermittent
[23:10:21] <danimal_garage> caps lock is off
[23:10:50] <Tom_itx> i bet your "r" is broke
[23:10:51] <Tom_itx> :D
[23:10:53] <danimal_garage> unless it's a bad keyboard
[23:11:03] <danimal_garage> it works 90% of the time
[23:11:06] <Tom_itx> try another one first
[23:11:12] <danimal_garage> never had a problem with 2.4
[23:11:13] <Tom_itx> for a week
[23:11:23] <danimal_garage> not that easy
[23:11:30] <Tom_itx> the keyboard just decided to fail today
[23:11:39] <danimal_garage> it's built into the machine kinda sorta
[23:11:47] <Tom_itx> probably not...
[23:11:50] <Tom_itx> but could be
[23:13:31] <JT-Shop> Dan do you have the MDI window open when you press r
[23:15:34] <danimal_garage> no
[23:16:03] <danimal_garage> i've been running the same parts all day without making any changes
[23:16:12] <danimal_garage> all i've been doing is hitting r
[23:16:32] <danimal_garage> so it never left the f3 screen
[23:17:49] <danimal_garage> probably just best to chock it up to a screwy keyboard, but if it happens to someone else, then maybe it's emc
[23:18:05] <JT-Shop> then you may have to hold the r long enough for the keypress to be seen by axis
[23:18:13] <danimal_garage> tried that
[23:18:33] <danimal_garage> i hit it several times, then i just used the mouse
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[23:19:17] * JT-Shop hands Dan his .44 magnum to put his keyboard out of it's misery
[23:19:25] <danimal_garage> after it starts running, i can hit the r button again and it will show the error that it normally would if you press r when a program is running
[23:19:36] <elmo40> emcrules_mill: you around?
[23:19:49] <JT-Shop> that does sound weird
[23:19:56] <danimal_garage> which is the only reason why i'm thinking it's not the keyboard
[23:20:51] <danimal_garage> but no biggie, not the end of the world
[23:21:50] <danimal_garage> i bet most people woulsnt even notice it because they probably have a real run button
[23:23:16] <JT-Shop> I've never had it happen to me
[23:24:02] <JT-Shop> do you end programs with M2?
[23:25:08] <danimal_garage> m30
[23:26:31] <JT-Shop> you have pallet shuttles?
[23:26:34] <elmo40> M30
[23:26:34] <elmo40> %
[23:26:35] <the_wench> http://www.linuxcnc.org/docs/
[23:26:51] <danimal_garage> no
[23:27:07] <danimal_garage> it's just what mastercam ends with
[23:27:13] <JT-Shop> To end a program, program M2. To exchange pallet shuttles and then end a program, program M30.
[23:28:23] <danimal_garage> hmm, odd
[23:28:26] <JT-Shop> open up your status window while running and watch that
[23:28:50] <danimal_garage> i've never had a problem with it
[23:28:50] <elmo40> isnr m2 just program STOP? and m30 is program STOP&rewind?
[23:29:09] <danimal_garage> i believe it is elmo40
[23:29:14] <danimal_garage> at least for most machines
[23:29:36] <danimal_garage> not sure on emc
[23:29:54] <danimal_garage> i am using the emc2 post files for mastercam
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[23:43:21] <JT-Shop> No more lines of code in an RS274/NGC file will be executed after the M2 or M30 command is executed. Pressing cycle start will start the program back at the beginning of the file.
[23:45:17] * bill20r3 makes a note.
[23:48:49] <elmo40> which post files are those?
[23:49:32] <elmo40> m2 and m30 differences will depend on the controller.
[23:51:08] <Tom_itx> JT-Shop, are you goin for sheetrock in the workshop or bare walls?
[23:52:09] <elmo40> I put 3/8" plywood over the drywall, around the machines and work tables/benches.
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[23:52:57] <elmo40> a thin metal sheet where coolant/chips will constantly hit.
[23:54:02] <JT-Shop> Tom_itx: I'm going to sheetrock the ceiling and OSB the walls is the plan ATM
[23:54:09] <danimal_garage> i was gunna insulate and sheetrock my garage soon with sound deadening drywall
[23:56:26] <elmo40> Roxul is an amazing product for sound deadening. http://www.roxul.com/stone+wool/sound-absorbent
[23:57:45] <Tom_itx> i should go mill some boxes
[23:58:04] <bill20r3> like, "run machines in the cellar without my wife complaining" amazing?
[23:58:30] <Tom_itx> just deafen her then you won't have to worry
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