#emc | Logs for 2010-08-08

[00:04:32] <theorb> theorb is now known as theorbtwo
[00:20:46] <jthornton_> jthornton_ is now known as jthornton
[00:36:00] <rooks> does emc support some sort of device that acts like a camera on stadion, which is suspended by 4 wires from 4 corners of stadion + 2 degrees of fredom on camera?
[00:37:25] <jthornton> I've seen similar things done with a ghost on the wiki I think
[00:38:25] <rooks> care to show url?
[00:38:33] <genehacker> well I suppose it could be done
[00:38:56] <jthornton> just look on the wiki page for examples I think is where I saw it
[00:39:06] <genehacker> wiring up a parallel port cable here, anyone have a quick link to the pinout?
[00:39:39] <jthornton> pinout for what pins are innies and what pins are outies?
[00:40:10] <genehacker> what pins I connect to my stepper controller from the parallel port
[00:40:30] <jthornton> what pins did you configure to connect to your stepper controller?
[00:41:21] <genehacker> I haven't configured any pins yet
[00:42:21] <jthornton> http://www.linuxcnc.org/docview/html//hal_drivers.html#r1
[00:42:47] <jthornton> ^^ that shows what pins are inputs and outputs
[00:43:36] <jthornton> genehacker: are you using the stepconf wizard to build your configuration files?
[00:44:33] <genehacker> I think I need to go through the getting started section first
[00:44:37] <Beezer> Hi everybody
[00:44:54] <jthornton> genehacker: very good idea
[00:45:49] <rooks> jthornton, yeah, found it, its sweet :)
[00:46:13] <jthornton> I thought I remembered that LOL
[00:47:34] <Beezer> I just got my chinese Toshiba driver in. I have been luking this project for years and finaly taking the dive!
[00:49:22] <Beezer> I have a question, can I make a hybrid like steppers and servos ?
[00:49:59] <jthornton> it ain't easy afaik
[00:50:29] <jthornton> Beezer: do you mean steppers with encoder feedback?
[00:50:36] <Beezer> yes
[00:51:13] <Beezer> only want the y axis to use the servo
[00:51:36] <jthornton> so you just want to mix steppers and servos?
[00:51:44] <Beezer> yes
[00:52:11] <jthornton> I don't think that is too hard to do...
[00:52:41] <Beezer> great, i dont have any commitments yet
[00:53:12] <Beezer> was hoping to use what i had on hand
[00:54:05] <genehacker> I must ask though, is it possible to get decent stepper speed with 1/256 microstepping using EMC2?
[00:55:17] <Beezer> its been very hard to resist buying an old lathe with the money I been spending on this dream.
[00:56:27] <jthornton> genehacker: yes with hardware like Mesa to get really fast stepping with the parallel port you are limited by the latency of your computer
[00:56:36] <Beezer> I just saw a conversion of a radial arm saw.now thats creative!
[00:56:53] <jthornton> that's different
[00:58:22] <Beezer> I built a computer just for emc and its been in the garage for over a year just awaiting the gantry
[00:59:54] <Beezer> I see a few others bought this board based on toshiba chip
[01:00:28] <Beezer> Hope it doesnt blow like some of the others
[01:01:59] <Beezer> motors are 2.1A 175oz
[01:02:41] <Beezer> have not yet bought a psu, I was hoping for some help choosing one
[01:05:21] <jthornton> genehacker: why would you use 256 micro steps and want to go fast too?
[01:06:53] <jthornton> Beezer: is that some cheap driver board from fleabay or something like that?
[01:07:00] <Beezer> yes
[01:07:33] <jthornton> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Stepper_Formulas
[01:08:59] <jthornton> don't expect much from it then and you won't be disappointed... do you have a link to the manual for it?
[01:13:18] <Beezer> somewhere yes
[01:13:58] <genehacker> because my stepper driver has the capability
[01:14:00] <Beezer> I have followed others luck and yes I dont expect alot
[01:14:38] <genehacker> I have heard that more microstepping results in smoother motion?
[01:14:49] <jthornton> genehacker: for slow speeds only
[01:14:58] <genehacker> ah I see
[01:15:00] <jthornton> for fast speed you want 1 step
[01:15:31] <jthornton> my Gecko 203v morphs from 10 micro steps to 1 through the speed range for smoothest operation
[01:15:51] <Jymmm> Step 1) Be already nakkid, Step 2) DUH
[01:15:55] <jthornton> starts at 10 and as the speed increases it morphs to 1
[01:16:07] <jthornton> Jymmm: your on the wrong channel LOL
[01:16:40] <Jymmm> jthornton: just responding to what you said
[01:16:48] <jthornton> I know
[01:20:01] <Beezer> I wish I had the skill to build an arm like the plants use to weld.
[01:21:08] <genehacker> I can't do that with my stepper controller unfortunately
[01:21:51] <jthornton> if you can pick the microsteps then you will have to select one that gives you the smoothest operation over your speed range
[01:22:35] <Beezer> what kind of driver is he using?
[01:22:48] <genehacker> a national instruments nudrive
[01:24:17] <Beezer> after buying the chinese board the motors arived with their own discrete stk based drivers
[01:25:04] <Beezer> so i got those for nothing!
[01:25:41] <genehacker> I'm using it because it was free
[01:25:52] <jthornton> free is good
[01:26:07] <Beezer> best price up front anyway
[01:28:28] <Beezer> I wonder if anyone has used chaindrive instead of screws belts ect..
[01:28:44] <jthornton> I've seen that on plasma cutters before
[01:29:48] <Beezer> may be cheaper
[01:30:27] <jthornton> been a long day guys... I'm off to bed now
[01:30:34] <Beezer> bye
[01:30:36] <Beezer> ty
[01:37:29] <genehacker_> genehacker_ is now known as genehacker
[01:42:27] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/servo/belts.jpeg
[01:46:32] <Beezer> I am afraid rack in the gantry x with one motor,so I was thinking of using a jackshaft and dual chains there
[01:46:38] <skunkworks> those servos have had a life
[01:46:58] <Beezer> they look sweet
[01:47:05] <Beezer> and well loved
[01:47:08] <Beezer> hehe
[01:49:40] <Beezer> I have an old psu for a pc that i been thinking of using to test this thing
[01:51:15] <Beezer> says 300 watt 6.4 amp
[01:54:04] <Beezer> guess that should run 3 axis at 2.1 amp motors?
[02:15:48] <skunkworks> is it rated 6.4a at the voltage your going to use?
[02:27:58] <Jymmm> skunkworks: You have some Panduit to cover those belts?
[02:29:05] <skunkworks> heh
[02:29:19] <Jymmm> skunkworks: ;)
[02:29:45] <Jymmm> skunkworks: What are those skat bearings for?
[02:29:56] <Jymmm> skate
[02:45:18] <eztam> hello
[02:51:30] <Jymmm> Is it possible to use a 1/4" router bit in a drill press to create a slot ~1/4" deep in wood?
[02:52:03] <eztam> why not
[02:52:09] <eztam> give it a try
[02:52:36] <Jymmm> Spindle speed, bearing runout, something else
[03:33:16] <skunkworks> Jymmm: bit bigger than a skate bearing. it is what the way cover slides over
[03:46:03] <Beezer> I think its prolly rated for 12 v being a pc psu
[03:46:27] <Beezer> I just wanna test the controller
[04:23:56] <MendelAbuser> MendelAbuser is now known as Imsooboredrightn
[04:25:53] <Imsooboredrightn> Imsooboredrightn is now known as Mendel|construct
[05:20:57] <Jymmm> skunkworks: Ah, ok.
[05:50:58] <ries_> ries_ is now known as ries
[06:08:03] <Mendel|construct> Mendel|construct is now known as Mendelbuild|zz
[07:50:04] <mrsun> hmm, what was it that mach software thingie had to do to be able to do realtime in windows?
[07:50:12] <mrsun> some kind of hack i know but what exactly ? :)
[07:51:19] <micges> some low level driver that hook interrupts
[07:52:09] <mrsun> hmm, "hook interrupts" ? :) what is that good for? :)
[07:58:14] <mrsun> gah i wish i had a gcode viewer for haiku
[07:58:21] <mrsun> that is that can render the gcode =)
[07:58:53] <mrsun> might not be so extremley hard to write tho ? :)
[07:59:22] <micges> you can use emc in simulation mode
[08:01:07] <mrsun> micges, its in Haiku not linux .. dunno how tied emc is to linux in simulation mode?
[08:01:22] <mrsun> and no tk etc for haiku yet :/
[08:02:57] <micges> oh
[08:22:03] <IchGuckLive> Hi from Rainy Germany
[08:22:21] <IchGuckLive> is there a develop into G12/G13
[08:22:35] <IchGuckLive> or into a pocketing G code
[08:22:36] <micges> what is g12/g13 ?
[08:22:58] <IchGuckLive> Pocketing a Circular
[08:23:25] <IchGuckLive> http://wiki.linuxcnc.org/emcinfo.pl?G12-13
[08:24:46] <IchGuckLive> i wrote this script for pocketing ->http://www.pictureupload.de/originals/pictures/020810201332_pocket_v1_c.png
[08:25:12] <IchGuckLive> it woudt be nice to use the G12/13 for parallel pocket G-code
[08:30:23] <micges> does fanuc has g12/g13 ?
[08:30:39] <IchGuckLive> Yes
[08:30:50] <IchGuckLive> and also G77 the iso cycle
[08:31:12] <IchGuckLive> on Haas its G150 for rectangular
[08:33:25] <micges> you said rainy germany? whom where you from?
[08:33:25] <IchGuckLive> i lookt into Fanuc11M theri no into 15 it is
[08:33:48] <IchGuckLive> RLP near Ramstein
[08:33:58] <micges> cool
[08:34:10] <micges> I'm from rainy Poland, Thorn
[08:34:14] <IchGuckLive> lots of C-5B today
[08:38:12] <IchGuckLive> so i will continue with standart G-code programming the pocket cycles for EMC2.4.3
[08:38:20] <IchGuckLive> http://www.pictureupload.de/originals/pictures/300710110511_kreis_t_f.png
[08:38:32] <IchGuckLive> micges: a damm broke tonight
[08:39:42] <IchGuckLive> micges: here are the latest waterlevels http://www.umwelt.sachsen.de/de/wu/umwelt/lfug/lfug-internet/857.asp?url=/de/wu/umwelt/lfug/lfug-internet/hwz/inhalt_re_frame.html
[08:40:43] <alex_joni> IchGuckLive: I looked at the Fanuc manuals I have, and there's only G12.1 and G13.1 (polar coordinate interpolation mode)
[08:40:56] <alex_joni> Fanuc 16i/160i/21i/210i
[08:41:20] <micges> IchGuckLive: whole city under water: http://maps.google.pl/maps?hl=pl&safe=off&q=bogatynia+mapa&um=1&ie=UTF-8&hq=&hnear=Bogatynia&gl=pl&ei=i21eTNW_J9qIOLKZyL0J&sa=X&oi=geocode_result&ct=image&resnum=1&ved=0CB0Q8gEwAA
[08:41:21] <alex_joni> in Fanuc 10i there's no G12 at all
[08:41:31] <IchGuckLive> alex_joni: you wher right there seams to be a lot of confusion on that use
[08:42:54] <alex_joni> for polar coordinates emc2 has some codes
[08:43:26] <IchGuckLive> i will use G2/G3 so everyone can follow the script
[08:44:12] <IchGuckLive> the Endresult will be the same
[08:44:24] <IchGuckLive> its just more code
[08:44:26] <alex_joni> http://linuxcnc.org/docs/html/gcode_main.html#r1_1
[08:45:27] <alex_joni> micges: wanna swap weather for a couple days?
[08:45:31] <alex_joni> we could use some rain here
[08:46:13] <IchGuckLive> Moscou To
[08:46:19] <alex_joni> http://www.accuweather.com/en-us/ro/timis/timisoara/forecast.aspx
[08:47:59] <IchGuckLive> the Rain that miges has shoudt be half delivert to Russa
[08:48:36] <IchGuckLive> ok so by for nowback in the evening 1
[08:50:34] <micges> alex_joni: yes weather exchange would be relief
[09:03:29] <Fox_M|afk> Fox_M|afk is now known as Fox_Muldr
[09:41:36] <alex_joni> * alex_joni is still working on his desk
[09:41:52] <alex_joni> hmm.. it's not as easy as I thought it would be :D
[09:43:04] <micges> building from scratch?
[09:45:16] <alex_joni> designing so far
[09:46:47] <alex_joni> micges: http://imagebin.ca/view/nLdFKH.html
[09:47:16] <micges> wow alibre
[09:47:40] <alex_joni> yeah
[09:47:40] <micges> do you like working in alibre ?
[09:47:50] <alex_joni> yeah, I got really used to it
[09:48:07] <micges> my ingeeners often complaining on it
[09:48:21] <alex_joni> I don't see it any different than SW for example
[09:48:28] <alex_joni> do they use v12?
[09:48:34] <micges> many bugs
[09:48:40] <micges> yes
[09:48:53] <alex_joni> hmm.. I can't say I had issues with bugs
[09:49:01] <alex_joni> but I do mostly simple modelling
[09:49:29] <micges> we build whole machines models
[09:50:48] <micges> I plan to learn allibre soon
[09:51:08] <micges> or SW, depends which will be easy to get
[09:53:52] <alex_joni> well, you can get alibre for free/almost free
[09:54:02] <alex_joni> it's surely good enough for learning
[09:54:17] <alex_joni> also v13 is soon around the corner
[09:54:29] <alex_joni> so they will drop v12 at half the price (if they do the same as every year)
[09:54:45] <alex_joni> so you can buy v12 at half the price + maintenance then you can upgrade free to v13
[09:55:16] <micges> but I need windows for that
[09:55:38] <micges> unlikely to work nicely on wine
[09:56:22] <micges> hey I can use virtualbox :P
[09:56:35] <micges> thanks for price info
[09:58:05] <alex_joni> http://feedback.alibre.com/forums/16127-alibre-design-suggestions/filter/accepted
[09:58:38] <alex_joni> alibre PE is 99$ (Personal Edition)
[09:59:22] <alex_joni> https://www.alibre.com/products/hobby/features.asp
[11:00:42] <micges> ah finally on 10.04 :)
[11:25:32] <WalterN> micges, building RAID5 array with 3x 2tb drives on 10.04 :)
[11:26:23] <WalterN> with my custom computer case I built too :D
[11:26:26] <WalterN> http://i36.tinypic.com/ivx355.jpg
[11:35:28] <jthornton> anyone heard of U++ gui for C++?
[11:53:33] <Jymmm> jthornton: Just this http://www.ultimatepp.org/
[11:55:00] <jthornton> yea, I was looking at it and just wondering...
[11:57:02] <Jymmm> I personally think "frameworks" is a highly overused term and so far abstract from the actual language that "why bother at all", but that's primarily in scripted langs like php, ror, etc.
[11:59:05] <jthornton> I'm struggling with what gui to use with c++ atm
[11:59:33] <Jymmm> oh, hang on a sec... suffering from CRS
[12:01:28] <Jymmm> Have you looked at Eclipse IDE? You can use it for *ANY* language on pretty much any platform.
[12:02:23] <Jymmm> http://whole.sourceforge.net/Screenshots.html
[12:03:58] <jthornton> I've not seen that one before... I've been using Code::Blocks with GTK a bit
[12:05:24] <Jymmm> http://www.vogella.de/articles/Eclipse/article.html
[12:05:32] <Jymmm> thats a tutorial on it
[12:05:42] <jthornton> * jthornton reading now
[12:06:11] <Jymmm> It's written in Java fwiw
[12:07:22] <jthornton> I've never dabbled in Java
[12:07:54] <Jymmm> I don't think you have to, it has plugins for varous languages
[12:08:12] <SWPadnos> Eclipse is a monster, but it seems pretty good and feature-laden
[12:08:21] <jthornton> yea, reading about the plugin forC++
[12:08:42] <jthornton> monster?
[12:08:49] <Jymmm> http://www.eclipse.org/downloads/moreinfo/c.php
[12:09:11] <SWPadnos> I had installed it some time ago for some reason, but never used it. I now have it on my laptop since that's the preferred (and maybe only) way to write Android apps
[12:11:55] <Jymmm> jthornton: And there is #Eclipse too if you need help with it
[12:12:04] <jthornton> Jymmm: thanks
[12:13:52] <Jymmm> Oh nice.... They have a newsfeed of their forums... http://www.eclipse.org/forums/
[12:15:27] <Jymmm> So nntp is not just for pr0n and piracy afterall these days, I'll be damn.
[12:25:05] <Jymmm> SWPadnos: You know anyting about airflow? CFM tubing size and the like?
[12:25:12] <SWPadnos> nope
[12:25:23] <Jymmm> like dust control
[12:25:23] <SWPadnos> except that bigger tubes allow more air flow
[12:25:54] <Jymmm> scroll to the bottom and read the last entry http://www.digitsmith.com/archives/what-is-best-for-the-exhaust.html
[12:26:20] <Jymmm> err, 2nd to the last "Nobody has ....."
[12:27:52] <SWPadnos> ok, that sounds plausible
[12:28:22] <Jymmm> What I'm thinking is 4" duct 6ft long from the laser to a 6" adapter, to a fan to 6" @ 25ft duct
[12:29:25] <Jymmm> The 4" duct will basically be disposable (dryer hose)
[12:29:45] <Jymmm> and will fill up with gunk over time
[12:30:06] <SWPadnos> read the last comment ;)
[12:30:31] <Jymmm> lighting storms?
[12:30:38] <SWPadnos> no dryer hose
[12:30:46] <Jymmm> oh, no, I mean aluminum dry duct
[12:30:49] <Jymmm> hose
[12:31:07] <Jymmm> they dont even sell plastic dryer hose at Hd anymore
[12:31:18] <Jymmm> or I couldn't find it
[12:32:31] <SWPadnos> it's all squished up, so it's hard to see
[12:32:38] <Jymmm> http://www.homedepot.com/h_d1/N-5yc1vZ1xgl/R-100050673/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
[12:32:54] <Jymmm> That's aluminized paperish stuff
[12:33:27] <Jymmm> They also have the 100% flex aluminum duct too
[12:34:22] <Jymmm> Hmmm, I didn't expect to find HD with 6" flex duct http://www.homedepot.com/h_d1/N-5yc1vZ1xgl/R-100140592/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
[12:34:44] <Jymmm> Maybe I'll use the adapter directly on the laser instead
[12:36:18] <Jymmm> SWPadnos: Use this fan instead of a dust collector; 450 CFM @ 1A http://www.ehydroponics.com/?action=product&id=203&cid=121
[12:37:14] <Jymmm> SWPadnos: Suppose to be 50dBa too
[12:37:16] <SWPadnos> you should probably use a fan that doesn't have the motor in line with the air (and dust) flow
[12:37:56] <SWPadnos> I don't know if the dust from laser cutting is flammable (in theory it's already burned), but you should think about that
[12:37:59] <Jymmm> SWPadnos: It's primarily fume control, not dust.
[12:38:07] <SWPadnos> like explosion proof motors and stuff
[12:38:11] <SWPadnos> ok
[12:38:57] <jthornton> damm, lost my internet again... back to dialup
[12:39:26] <Jymmm> SWPadnos: What I could do is setup a 5gal bucket in-line as a particulat collector. Maybe even toss in some activated charcoal pellets if I can find them cheap enough.
[12:39:32] <Jymmm> jthornton: you poor bastard.
[12:42:44] <Jymmm> SWPadnos: These things are HUGE http://www.ehydroponics.com/?action=product&id=2376&cid=234
[12:43:36] <Jymmm> like 40-60 lbs, and 5ft tall
[12:51:53] <Jymmm> SWPadnos: WTH?! Read the Specs tab... http://www.homedepot.com/h_d1/N-5yc1vZ1xgl/R-100396935/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
[12:52:08] <Jymmm> # Maximum air flow (CFM) : 100
[12:52:14] <Jymmm> Does that sound right?
[12:53:42] <SWPadnos> I bet you need a pretty powerful blower to get anywhere near that
[12:54:30] <Jymmm> I'm looking at 450CFM fan, but if a 6" duct can only do 100CFM, and an 8" cna do 200CFM, I'm screwed
[12:54:51] <SWPadnos> a smooth duct would allow more airflow, I think
[12:55:01] <Jymmm> Yeah, that's correct.
[12:55:05] <SWPadnos> that has a very coarse helix
[12:55:58] <SWPadnos> and it looks like the actual duct is very flimsy, which should also waste some energy for you
[12:56:20] <Jymmm> waste energy?
[12:56:32] <SWPadnos> note also that that is a 25' duct - if you need less length, then you may get more flow
[12:56:35] <Jymmm> oh you mean CFM energy?
[12:56:54] <SWPadnos> yeah, the "wind" has a certain amount of energy in it, if you waste it on other things, then less air gets out
[12:57:12] <Jymmm> I think I actually need around 30ft, but might be able to get away with 25ft
[12:58:48] <Jymmm> Ok, if 6"==100CFM, 8"==200CFM, 10" should be around 400CFM or am I way off?
[12:59:11] <SWPadnos> 4th power, that post said
[12:59:26] <SWPadnos> if you need 2x the flow, you need 1.189 (IIRC) x the diameter
[12:59:35] <Jymmm> SWPadnos: ENGWISH man , ENGWISH =)
[12:59:51] <SWPadnos> 2x the diameter = 16x the flow
[13:00:42] <Jymmm> Right, but I'm going my the mfg rating for airflow.
[13:00:48] <Jymmm> s/my/by/
[13:00:51] <SWPadnos> makes sense
[13:01:15] <Jymmm> which said that 6"@25 == 100CFM, and 8"@25ft == 200CFM.
[13:01:32] <SWPadnos> ok
[13:01:41] <Jymmm> So, if I jump up to 10"@25ft, would be ________ CFM?
[13:02:02] <SWPadnos> whatever the manufacturer says
[13:02:21] <Jymmm> They don't sell 10" flex at HD
[13:02:26] <cpresser> just out of interest.. what does CFM stand for?
[13:02:34] <SWPadnos> cubic feet per minute
[13:02:41] <Jymmm> cpresser: CFM == Cubic Feet per Minute
[13:02:43] <SWPadnos> of airflow
[13:02:58] <Jymmm> cpresser: How much air can you displace in a minute.
[13:03:34] <SWPadnos> well, you need both CFM and pressure to tell how much air it really is
[13:04:04] <cpresser> ah ty. I was missing the vocabulary :)
[13:04:17] <Jymmm> cpresser: If a room 10x10x10ft == 1000 cubic feet was filled with smoke, and you had a 500 CFM fan, it would take 2 minutes to empty the smoke (under PERFECT conditions)
[13:05:55] <cpresser> its the imperial-system I am not familiar with
[13:06:29] <cpresser> but the physics dont bother if you are using CubicFeet or Liters :)
[13:08:00] <Jymmm> SWPadnos: Ah crap... They are all lying to me http://hvac-talk.com/vbb/attachment.php?attachmentid=488&d=1169841049
[13:08:20] <cpresser> but on the actual subject, I would go for the maximum diameter that still makes sense. since you can have a slower airflow it reduces the noice
[13:09:25] <IchGuckLive> hi is there a math function in emc to camlculate the int of a float? EX if i got 20.35 it shoudt be 20
[13:09:40] <IchGuckLive> also 20.9 shoudt give 20
[13:09:53] <Jymmm> floor() maybe ???
[13:10:22] <Jymmm> I'm guessing
[13:11:46] <IchGuckLive> is there somthing in the docu ?
[13:12:51] <IchGuckLive> #20=floor([[#3-#1]/#8/2.0]) error
[13:15:19] <SWPadnos> http://www.linuxcnc.org/docview/html//gcode_overview.html
[13:15:23] <SWPadnos> look under "functions"
[13:15:51] <SWPadnos> fix, fup, and round are all there
[13:16:06] <SWPadnos> (round down, round up, and round to nearest, respectively)
[13:17:13] <IchGuckLive> thanks
[13:20:51] <jthornton_> jthornton_ is now known as jthornton
[13:24:36] <Jymmm> SWPadnos: What is meant by "At static pressure"? I have not really understood that too much.
[13:24:44] <SWPadnos> no idea
[13:25:02] <Jymmm> SWPadnos: Heh, you mentioned it a little ways back =)
[13:25:22] <SWPadnos> I mentioned air pressure, I don't know the specific meaning of "static pressure"
[13:25:32] <SWPadnos> http://www.physicsforums.com/showthread.php?t=177988
[13:25:57] <Jymmm> http://www.wisegeek.com/what-is-static-pressure.htm
[13:25:58] <SWPadnos> ah, ok. it means "once the system has reached equilibrium at that airflow"
[13:26:22] <SWPadnos> add CFM to your search terms
[13:27:47] <Jymmm> Hmmm, static sounds like a fan blowing into a home with no exit
[13:31:55] <SWPadnos> nope
[13:32:02] <elmo40> Jymmm: think, balloon. that is static pressure.
[13:32:05] <SWPadnos> I take it to mean that the pressure is no longer changing
[13:32:14] <elmo40> exactly ;)
[13:32:22] <SWPadnos> when you first turn on a fan, the pressure in the hose is the same as the room
[13:33:01] <elmo40> at that instant in time.
[13:33:03] <SWPadnos> with the fan running, the pressure in the hose increases (this is what causes the air to flow), until it reaches some new, non-changing, pressure
[13:33:26] <SWPadnos> that is the static pressure for the system, at that fan speed/air flow
[13:34:12] <elmo40> flow roughly means P1>P2, in order to cause a transfer of fluid you need a force greater on one side then the other
[13:34:26] <elmo40> so, if P1=P2 nothing moves.
[13:51:50] <IchGuckLive> can someone check this Rectangle pocket milling Produser Please
[13:52:31] <IchGuckLive> http://pastebin.com/T7tyKKcu
[13:53:02] <IchGuckLive> rectangularspiralpocket.ngc
[13:56:59] <IchGuckLive> oh falt in the system of thinkiing if the larger value of the pocket expands it expands the Stepover SHIT
[14:01:52] <IchGuckLive> if i change the calculation of the #20 #2><#3 in #20=FIX[[[#2-#1]/#8/2.0]] then the stepover is not overtaking
[14:03:53] <IchGuckLive> ok this will work
[14:05:10] <SWPadnos> does it actually work as you have it, or do you need more square brackets in there?
[14:05:18] <IchGuckLive> http://paste.pocoo.org/show/247645/
[14:05:26] <SWPadnos> like #20=[FIX[[[#3-#1]/#8/2.0]]]
[14:06:23] <IchGuckLive> SWPadnos: yes
[14:07:29] <IchGuckLive> there is the change http://paste.pocoo.org/show/247645/ now nothing runs over the given stepover
[14:09:14] <IchGuckLive> for big mashines i shoudt be thinking of taking the first Rectangle to the full width-times of stepover and then stepover is always the given
[14:10:14] <IchGuckLive> for ouer Chees routers this is well the best it is always less or Equal to the stepover
[14:12:23] <rob_melb> length will increase resistance as well
[14:12:36] <rob_melb> opps
[14:12:46] <rob_melb> old post
[14:13:25] <IchGuckLive> a lot of people like milling zero Path
[14:14:10] <IchGuckLive> we coudt make the code working also with the Final Rect to G41/42
[14:14:35] <IchGuckLive> and Use D ftom tool table but thats on there own
[14:14:54] <IchGuckLive> this will do nothing if someone takes it as it is
[14:16:49] <IchGuckLive> oh i see the first rect that is obove zero wars only to see at the developing it coudt also be removed
[14:17:50] <IchGuckLive> line 30-39 can be removed
[14:18:18] <IchGuckLive> this displays the outline
[14:21:55] <maximilian_h> Is there a way to see in the hal layer what tool is currently used,.i.e. what is given using t0, t1 in the ngc file ?
[14:25:42] <IchGuckLive> SWPadnos: ? shoudt i put this into EMC wiki?
[14:26:04] <SWPadnos> sure, there's a page with "simple G-code generators"
[14:26:21] <IchGuckLive> i will also rite a Equal to G12/G13
[14:26:36] <SWPadnos> maximilian_h, there are pins on the motion controller with names that include the word "tool"
[14:26:48] <SWPadnos> halcmd show pin | grep tool will show them to you
[14:27:05] <maximilian_h> hello SWPadnos
[14:27:11] <maximilian_h> thanks
[14:28:08] <skunkworks> maximilian_h: this is done though hal and cl - finding the tool. http://www.youtube.com/watch?v=4nuRea6615s
[14:28:28] <maximilian_h> they are not exported from motion ? Are they, because I looked there in the doc and did not see any
[14:28:40] <IchGuckLive> By for now
[14:28:47] <maximilian_h> And I am not currently infront of the machine itself, but at home
[14:29:15] <SWPadnos> iocontrol, not motion
[14:29:46] <skunkworks> iocontrol.0.tool-number
[14:31:28] <maximilian_h> @skunkwork: Nice video, big machine ! I haven't used classicladder yet
[14:31:57] <skunkworks> there is also the tool prep number also
[14:32:00] <skunkworks> thanks
[14:32:05] <skunkworks> it is getting there
[14:32:06] <maximilian_h> Is there a way to set the feed rate in the hal layer and ignore whatever is given as the F word ?
[14:34:13] <skunkworks> there is adaptive feed...
[14:34:16] <maximilian_h> I have seen the motion.adaptive_feed pins
[14:34:29] <maximilian_h> but they are in percent of the commanded F word
[14:34:35] <maximilian_h> not absolute
[14:34:58] <maximilian_h> Or should I add my own hack to control.c ?
[14:37:48] <jmkasunich> since setting the feedrate with the F word is a fundamental principle of g-code, there is no way to defeat it
[14:38:09] <skunkworks> jmk!
[14:38:14] <jmkasunich> control.c is not the right place to make such a change anyway
[14:38:45] <jmkasunich> the F word is handled in the interpreter, part of user space, not the realtime motion controller
[14:38:51] <jmkasunich> skunkworks!
[14:40:18] <skunkworks> made any progress on your circuit board mill/whatever your going to use it for?
[14:40:26] <jmkasunich> none at all
[14:40:39] <jmkasunich> came home from workshop, went right back into doing real-life stuff
[14:41:52] <skunkworks> yeck
[14:44:04] <skunkworks> we are still plugging away http://www.electronicsam.com/images/KandT/conversion/servo/belts.jpeg
[14:44:25] <maximilian_h> @jkmkasunich: What would be the right place ? Adaptive feed is manipulation the feed rate in control.c, so why not set the absolute feed rate there too
[14:44:50] <jmkasunich> because the absolute feed rate doesn't come from there
[14:45:17] <jmkasunich> if you don't want to let the programmer set feed rate in g-code, how _do_ you want to set it?
[14:45:40] <maximilian_h> By using a panel with python
[14:45:48] <maximilian_h> and the python hal module
[14:46:07] <jmkasunich> I can't imagine why you would want to do that
[14:46:24] <jmkasunich> I'm sure you have a reason, maybe this isn't a machine tool, it is some custom application?
[14:46:29] <jmkasunich> anyway, I need to leave, sorry
[14:46:36] <maximilian_h> Yes, you are right
[15:39:40] <alex_joni> skunkworks: nice
[15:39:44] <alex_joni> does it move?
[15:40:14] <skunkworks> not quite yet. the pullys need to be tightened in the right place.
[15:40:14] <skunkworks> soon :)
[15:59:15] <e3m> oda na jutro
[16:47:39] <IchGuckLive> Hi from Germany#
[16:53:39] <IchGuckLive> SWPadnos: still around
[16:53:52] <IchGuckLive> hoew can i edit the wiki
[16:58:27] <awallin> IchGuckLive: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?BasicSteps
[16:58:53] <IchGuckLive> awallin: thanks
[16:59:39] <IchGuckLive> here is the last and final Rectangular-Pocketing example
[17:00:06] <IchGuckLive> http://paste.pocoo.org/show/247703/
[17:01:15] <Mendelbuild|zz> Mendelbuild|zz is now known as Mendellook
[17:09:58] <IchGuckLive> im simply not overcoming this inwiki
[17:10:09] <IchGuckLive> i did what the perferences said
[17:10:23] <IchGuckLive> but there is no edit button only upload file
[17:11:13] <IchGuckLive> di i have to create a HTML file or a txt file to upload and what happens to the page index ?
[17:15:23] <jthornton> no
[17:16:17] <IchGuckLive> i want to ad G150 like Rectangular Spiral Pocket Subroutine to the Page index and then create a liint to the Page on wiki
[17:17:06] <jthornton> to the main page
[17:17:11] <jthornton> ?
[17:17:24] <IchGuckLive> to the Pageindex
[17:17:50] <IchGuckLive> and then a new Side with the file and the Code and the text
[17:18:44] <jthornton> edit the page and follow the leader by example and insert your new page... save this then a ? shows up and you click on it to create a new page
[17:20:08] <jthornton> for example look now at the Misc section and you see my example
[17:26:50] <IchGuckLive> i do notr understand how this works so therfor i keep my fingers of it
[17:27:48] <IchGuckLive> i will first finish the GUI python
[17:28:15] <IchGuckLive> http://www.pictureupload.de/originals/pictures/020810201332_pocket_v1_c.png
[17:29:06] <SWPadnos> pages are automatically indexed
[17:29:49] <SWPadnos> if you want to make a full wiki page for the pocketing routine, you should add a link to the "G-Code Generators" page as jthornton said
[17:30:02] <SWPadnos> you then click the ? and edit that page
[17:30:28] <jthornton> yea, if it is another pocket routine put it on that page
[17:30:42] <SWPadnos> If you want the program file to be available for download, you need to upload it first. I don't recall exactly how to do that, but the instructions should be available from BasicSteps or a link from there
[17:31:01] <SWPadnos> err, add a link *on* the G-code generators page
[17:32:39] <jthornton> * jthornton wanders off to take a nap
[20:26:39] <IchGuckLive> Hi there in the world
[20:27:09] <IchGuckLive> i fionisht now also Circular Pocketing with spiral mod -> http://paste.pocoo.org/show/247773/
[20:27:54] <IchGuckLive> but it seams that i have a problem to come back from Spiral to Circular center at some numbers at most it works
[20:28:24] <IchGuckLive> but sometimes the error generator messers a diverence in the center
[20:28:25] <jthornton> arcs are always fun to figure out
[20:28:52] <IchGuckLive> i read that the difference must be lower then 0.002inch
[20:29:07] <jthornton> something like that yes
[20:29:32] <IchGuckLive> coudt someone please test a littel the code ?
[20:30:28] <IchGuckLive> igo to bed im done with the calculatins for today
[20:31:00] <jthornton> it loads for me
[20:31:16] <IchGuckLive> change the diameter by 1
[20:31:53] <jthornton> to 31.0?
[20:32:09] <IchGuckLive> yes
[20:32:29] <jthornton> yes, I get the arc error
[20:32:55] <IchGuckLive> 32
[20:32:59] <IchGuckLive> will work
[20:33:14] <jthornton> yes it does
[20:33:48] <IchGuckLive> this is the value if i come out of the Spiral to the Finish Circel
[20:34:49] <IchGuckLive> if i calculate the point where we are and subtract the value to go take it hafe it is not exact enove
[20:35:26] <jthornton> yes it seems to only affect odd numbers
[20:35:57] <IchGuckLive> the calculation intern is float i guess with 12 numbers
[20:36:54] <jthornton> your radius is off by 0.5 which sounds like a math error not lack of precision
[20:38:00] <jthornton> or a logic error leaving the tool in the wrong place for an odd number
[20:39:13] <IchGuckLive> so whi it works on strait numbers ?
[20:40:11] <IchGuckLive> G3 X[#4-[#2/2.0]+[#1/2]] Y#5 I-[[[#4+[[#20/2.0]*#8]]-[#4-[#2/2.0]+[#1/2]]]/2.0]
[20:40:11] <alex_joni> luck
[20:40:17] <jthornton> yep
[20:40:29] <alex_joni> use named vars for crying out loud ;)
[20:42:05] <jthornton> listen to Alex he taught me every thing I know without telling me anything strait up :)
[20:42:43] <IchGuckLive> #20 is the miss cause it is Fixt
[20:44:03] <IchGuckLive> no same error
[20:45:42] <jthornton> what is this in English Czas przetwarzania pliku
[20:46:11] <Jymmm> jthornton: "Needs more salt"
[20:46:17] <Jymmm> ;)
[20:46:20] <jthornton> thanks Jymmm
[20:46:27] <Jymmm> jthornton: I have no clue =)
[20:46:39] <jthornton> I like needs more salt better
[20:46:54] <IchGuckLive> so Diameter mast be strait dividet by 2 B)
[20:47:05] <alex_joni> "File processing time"
[20:47:10] <IchGuckLive> i find out the Clou tomorrow BY
[20:47:11] <alex_joni> jthornton: ^^
[20:47:15] <jthornton> alex_joni: thanks
[20:47:30] <Jymmm> Yeah, I think I like "needs more salt" too
[20:47:43] <IchGuckLive> this shoudt be solvable or dident you think?
[20:47:49] <Jymmm> or hotsauce, whatever kills the taste
[20:49:23] <IchGuckLive> are there a parameter to find out where the programm is Right now cause it tells me the error with the numbers
[20:49:32] <jthornton> IchGuckLive: yes it is solvable take a look at my simple g code generators on the wiki they do the same type of move for the counterbore one
[20:50:14] <IchGuckLive> i will
[21:39:03] <DaViruz> robh__: do you know which sinumerik 810 files are machine specific out of PCP, TEA1, TEA2, SEA?
[21:39:29] <DaViruz> i'm pretty sure that TEA1 and TEA2 are machine specific but i'm not sure about SEA and especially PCP
[21:42:11] <robh__> SEA think if rember right this sets axis working limits
[21:42:31] <robh__> they are mostly 9999999 and -999999 so ie no limit of where you can work in the travel
[21:43:36] <robh__> PCA is all PLC info and stuff, PCP not sure on this one, might be a mill thing? have you found the files for a 810 have you
[21:49:22] <DaViruz> PCP is the PLC proggram file
[21:49:26] <DaViruz> PCA is the PLC alarm file
[21:49:51] <DaViruz> yeah i found a complete set for a 3 axis vertical
[21:50:16] <DaViruz> the TEA1&2 parameters seems to be very well documented by siemens
[21:50:20] <DaViruz> but there are A LOT of them..
[21:50:36] <robh__> yea just DNC them into the machine and see if it fix's it
[21:51:28] <DaViruz> any point in trying to read whatever data is still in the machine for backup?
[21:51:35] <robh__> info to load it into the machine should be in the manuak unless you like typing alot of numbers
[21:51:42] <robh__> you can try
[21:52:07] <DaViruz> yeah i have a pdf file explaining the process on the operator panel, as well as the siemens pcin software
[21:52:46] <robh__> it might have gone back to default values most time a reload on the tea stuff brings it back up once it knows what it has to become
[21:53:48] <DaViruz> this stuff is pretty interesting, i like working with unusual hardware :)
[21:54:50] <robh__> well hope you can get it fixed and up and running
[21:56:34] <robh__> DaViruz, heres a machine i retrofitted from an old Mitsubishi control http://www.youtube.com/watch?v=UlW1s2BNixo
[21:56:39] <DaViruz> the original tool manufacturer seems to have been mered in another company now, so getting the real files may be impossible..
[21:57:49] <DaViruz> neat
[21:57:55] <DaViruz> this machine has a two position toolchanger
[21:58:05] <DaViruz> i wonder whose idea that was
[21:58:25] <robh__> two position?
[21:58:53] <DaViruz> it holds two tools
[21:59:07] <robh__> o right
[21:59:13] <DaViruz> probably did some very monotone work :)
[22:31:37] <andypugh> I wonder how you make a leadscrew for a lathe this long?
[22:31:41] <andypugh> http://cgi.ebay.co.uk/Dean-Smith-Grace-Type-30-x-168-Lathe-/270607571700
[22:58:52] <andypugh> Hi guest341
[23:01:25] <Guest341> heh
[23:01:33] <Guest341> Guest341 is now known as skunkworks
[23:02:38] <skunkworks> Hi andy
[23:03:13] <andypugh> Ah, you were masquerading as a noob?
[23:07:15] <Fox_Muldr> Fox_Muldr is now known as Fox_M|afk
[23:18:46] <skunkworks> only accidentally
[23:33:47] <Jymmm> andypugh: what do you mean "masquerading"?
[23:33:56] <andypugh> Good point
[23:41:04] <Jymmm> All the mesa boards are just FPGA + IO, aren't they?
[23:49:49] <andypugh> Depends which Mesa boards you are talking aboue
[23:54:04] <Jymmm> any/all of them