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[00:02:09] <atom1> leave it sucky then
[00:02:41] <ssi> but it's so sucky!
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[00:24:58] <Jymmm> cradek: What is 'a', angle? a = 2 * asin( W / (2r) )
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[01:03:27] <chapuis> ??
[01:03:34] <chapuis> what did you say ?
[01:03:39] <chapuis> jymm ?
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[01:10:26] <chapuis> hi all
[01:10:46] <chapuis> somebody is here ?
[01:11:16] <chapuis> i have one or two questions
[01:18:10] <MOGLI> m not sure i can give you answer but i will try
[01:18:11] <MOGLI> ask
[01:18:11] <the_wench> Don't ask to ask, Don't state: "I have a question", Don't ask: "Is anyone around?" or "Can anyone help?". Just Ask The Question. Also, please read:
http://workaround.org/getting-help-on-irc
[01:18:50] <atom1> guilty
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[02:00:12] <cradek> Jymmm: yes
[02:00:22] <Jymmm> cradek: Cool, ty
[02:00:36] <Jymmm> cradek: I made a spreadsheet with it all
[02:01:37] <cradek> do you get the right answer now?
[02:02:30] <Jymmm> Yeah, I had to change it to this: 2 * asin( W / (2r) )
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[02:02:48] <Jymmm> It was doing w/2*r beofre
[02:03:06] <Jymmm> errr (w/2)*r
[02:03:20] <cradek> ah yes
[02:14:31] <chapuis> ok im a french guy and im a newbie about cnc conception
[02:14:47] <chapuis> sorry about my bad english
[02:19:19] <chapuis> did you now if a blinded cable 4x0.25 mm square wire connection is suffisant to command a bipolar PAP motor
[02:20:57] <mikegg> there's a lot of things to consider there...
[02:21:35] <chapuis> and did you now if the PAP motor 23HS 2 phases 28mH is a good thing to make a wood cnc
[02:21:37] <chapuis> ?
[02:22:50] <chapuis> i want to drive this with a 6208 card
[02:23:06] <chapuis> thanks for your responses
[02:25:44] <chapuis> my configuration is feasable or not ?
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[02:28:58] <chapuis> the PAP motor use 6v and 0.62 A
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[02:44:01] <mozmck> chapuis: that sounds like a pretty small motor
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[02:48:47] <chapuis> the couple is 110N.cm
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[02:52:54] <Gensor> andy: are you still up?
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[03:21:05] <Gensor> Easter must have wiped everyone out
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[03:47:53] <ssi> rgh
[03:47:57] <ssi> if it's not one thing it's a damn nother
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[04:27:37] <Connor> ?
[04:27:45] <ssi> my home switches aren't repeatable for shit
[04:28:42] <Connor> ouch, What are you using?
[04:28:47] <ssi> optointerruptors
[04:28:52] <ssi> was trying to dial in my centerline
[04:28:55] <ssi> cut a diameter, measure
[04:28:58] <ssi> was all over the place
[04:29:07] <ssi> put a dial on the cross slide and homed over and over
[04:29:12] <ssi> homing repeats to about .012"
[04:29:13] <ssi> terrible
[04:30:56] <Connor> You using a Schmet Trigger on them?
[04:31:05] <ssi> nope
[04:31:09] <Connor> Might try that.
[04:33:45] <ssi> was thinking I might try to get nema23 mount encoders
[04:33:52] <ssi> and use home switch + encoder index for homing
[04:34:00] <ssi> but the cheap us digital encoders don't seem to have index pulses
[04:34:10] <Connor> I'm using slot sensors for mine.. the work really well.
[04:34:20] <ssi> the schmidt trigger makes the difference?
[04:34:44] <Connor> yea.. other wise.. it's a crap shoot on when the parport thinks it's ready to trigger.
[04:36:15] <Connor> I was having issues were the switch would hit a specific spot that it would cause the parport pin to bounce.
[04:36:38] <ssi> I'll have to dig through my ic bins and see if I have any 74XX14's
[04:36:40] <ssi> I'm sure I do
[04:36:44] <ssi> just a matter of laying hands on them
[04:37:34] <Connor> I ended up using a 7414... which inverts the signal.. so, I used 2 sets for each axis.. but then... ended up using a bi-colored LED between them and made a display out of it too. :)
[04:38:02] <Connor> So, Green is good, red is limit.. and all is right with the world. :)
[04:38:48] <Connor> I've still need to install the Z's limits.. but.. I'm trying to mill out my PCB break out board first..
[04:39:19] <Connor> My pocket out another PCB holder and try it with these 30degree V bits I just got in.
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[04:40:38] <ssi> found my stash of 74xx
[04:40:47] <ssi> now to find a `14
[04:41:07] <Connor> NAND version will work too.
[04:41:14] <ssi> what's the number
[04:41:22] <Connor> dunno.. let me look.
[04:41:48] <Connor> 7418
[04:43:16] <Connor> my circuit is still on the bread board..
[04:46:19] <ssi> nothing in the HC bag
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[04:46:39] <Connor> :(
[04:46:46] <ssi> 7400 bag is next
[04:47:06] <ssi> bingo
[04:47:16] <ssi> DM7414N
[04:47:17] <Connor> CD4093 Might work too.. it's CMOS though.
[04:47:41] <Connor> That should work.
[04:48:08] <Connor> +5v to 1, GND to 14.. Pin 2 to 3.. input on pint 1, output on pin 4 and your good to go.
[04:48:26] <ssi> well there's the rub
[04:48:28] <ssi> I'm running 3v3
[04:48:34] <ssi> that's why I was searching the HC bag first
[04:48:37] <Connor> Hmm.
[04:48:39] <ssi> might search my CMOS bag in a sec
[04:54:44] <ssi> nothing promising in the cmos bag
[04:54:50] <Connor> what
[04:55:06] <Connor> what's 3v3 just the input voltage, or the parport too ?
[04:55:11] <ssi> I'm using a mesa card
[04:55:12] <ssi> FPGA
[04:55:13] <ssi> all 3v3
[04:55:19] <ssi> trying to avoid going to 5v tolerance mode
[04:55:58] <Connor> Yea.. I dunno.. I mine is all 5v.. so.. no issues like that.
[04:56:30] <ssi> 74 series is 5V
[04:56:39] <ssi> 74LS is 5V
[04:57:40] <ssi> HC will do 3v3
[04:57:46] <ssi> looking up ALS and F now, which I have
[04:58:57] <ssi> F might do it
[04:59:49] <ssi> have a 74F13
[04:59:50] <ssi> not ideal
[05:01:07] <ssi> might actually be F138
[05:05:33] <ssi> hah
[05:05:40] <ssi> found an entire bag of nothing but 74LS14
[05:06:12] <ssi> k bedtime
[05:23:29] <billhome> I need some 7414..
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[07:55:14] <emc-user> hi
[07:55:20] <emc-user> i have problem with emc2
[07:55:31] <emc-user> when i run stepconf and want to test axis
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[07:58:18] <emc-user> error is shown in
http://imagebin.org/150175
[07:58:48] <emc-user> any idea?
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[08:01:05] <The_Ball> emc-user, are you running that from the latest git version?
[08:01:48] <emc-user> i downloaded the cd imagte
[08:01:53] <emc-user> -t
[08:02:10] <emc-user> last week
[08:03:16] <The_Ball> ok, I was testing pncconf today and got the same message, but that was using the latest git version
[08:03:37] <The_Ball> not that that helps you ;)
[08:04:25] <emc-user> what can i do for thix?
[08:04:27] <emc-user> this
[08:05:02] <The_Ball> emc-user, I'm not sure, I haven't found the solution yet, but someone else here might be able to help
[08:08:13] <emc-user> i will test an older release
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[08:18:53] <The_Ball> emc-user, try starting from the terminal, there should be more debug information on why "halrun.flush()" died
[08:22:29] <emc-user> how do i start in terminal?
[08:24:13] <emc-user> hmmm it does not load any rtai
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[10:02:15] <elmo401> emc-user: it didn't load the rtai kernel? are you sure?
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[10:04:47] <emc-user> i think so
[10:04:59] <emc-user> as i have seen in terminal
[10:05:09] <elmo401> what does 'uname -r' display?
[10:05:29] <emc-user> it shows that it cant load the module
[10:08:30] <elmo401> that wasn't my question :P
[10:11:44] <emc-user> sorry
[10:12:00] <emc-user> allready installed the 8.04...
[10:12:32] <elmo401> older computer?
[10:13:45] <emc-user> amd athlon 1ghz
[10:15:34] <elmo401> then why didn't the kernel load? what did dmesg say?
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[11:51:20] <paragon36> Hello All, I have just plugged in a Mesa 7i43 card that I have had laying around for time and am hoping for some advice. When executing EMC2 and selecting the hm2-stepper and 7i43-big EMC loads and apears to program the card ie the init and done light switch off. What pins are the are used for the xyz step / dir on the 7i43 for this default configuration? I wish to probe them with a logic probe.
[11:53:57] <paragon36> Additionly when running pncconf and confiurging the xyz stepper outputs the test button is greyed out when moving on to the last page the save is also greyed out.
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[12:40:24] <paragon36> OK ... Iv'e got the 7i43 card working :-)
[12:40:41] <SWPadnos> I'd do it that way then :)
[12:40:56] <Jymmm> SWPadnos: I was just thinking about you
[12:41:01] <SWPadnos> eek
[12:47:51] <paragon36> Dam the 7i43 sure makes a hell of a difference to the smoothness and speed of the steppers compared to para port driven step /dir :-)
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[13:29:41] <ssi> 7i43 is a pretty nice thing to have
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[13:33:50] <jdhNC> online ordering is a nice thing to have
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[14:23:58] <atom1> one of everything is a nice thing to have too
[14:26:17] <atom1> is there any real need for the 400k gate fpga version?
[14:26:46] <atom1> i presume the example code fits in the 200k just fine
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[16:35:43] <JT-Shop> finally got the network back up and running and internet, now I have to wait till Sunday for the phone company to fix the phone :/
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[16:43:06] <Connor> What happened? Storms?
[16:45:26] <JT-Shop> yea, been monsoon rains every night for a week now
[16:45:35] <JT-Shop> and one more tonight
[16:47:54] <Connor> yea, were do a storm too.. Ick
[16:48:03] <Connor> had a bad one last night too
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[16:54:46] <bzzzz> fpga stepgen?! how is its ramping done?
[16:57:03] <rizo> I would like to make my own hal modeule using comp. When i try to "comp usrexample.comp" i get "The program 'comp' can be found in the following packages:* mailutils-mh * nmh Try: apt-get install <selected package>". What does this mean? Is comp not installed with emc?
[16:57:18] <cradek> install emc2-dev
[16:57:37] <rizo> i have it
[17:01:00] <JT-Shop> rizo: you have dev installed with apt-get install emc2-dev?
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[17:01:44] <rizo> i think so...this was some time ago... i have the emc2/emc2-dev/src/hal/components
[17:02:09] <rizo> i was modifying one .comp file
[17:03:14] <rizo> ok, i did this, now it works fine :)
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[17:24:47] <IchGuckLive> Hi all for a Pedant of a Miull what encoder shoudt i use HOw many pulses per Rev ?
[17:26:26] <jdhNC> how about: 100 Pulses per revolution with detent per
[17:26:30] <jdhNC> pulse.
[17:27:53] <IchGuckLive> that sounds good 100/Rev is a good thing to calculate with
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[17:44:50] <JT-Shop> if you can get an MPG it is easier to integrate into your pendant
[17:46:24] <Connor> I want to start a open source project for a pendant.. based on a ATMega chip.
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[17:50:28] <andypugh> Who was needing a boring head?
[17:50:30] <andypugh> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=200601724281
[17:50:57] <andypugh> (Pretty sure there is a number 2 morse under that shank)
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[18:11:57] <IchGuckLive> Connor: the Adruino is so ewasy to use and programm and it is via USB connected to the EMC Hal
[18:12:31] <IchGuckLive> JT-Shop: what is a MPG ?
[18:12:41] <JT-Shop> Manual Pulse Generator
[18:13:06] <IchGuckLive> so no A/B encoder for 10Euros needet
[18:13:08] <JT-Shop> andypugh: I'll have to watch that one for a few days :)
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[18:26:26] <IchGuckLive> ok i will go with this Encoder for my pedant
[18:26:29] <IchGuckLive> http://cgi.ebay.de/Optischer-Encoder-rotierend-Typ-HRPG-ASCA-54R-1-Stuck-/220726737428
[18:29:38] <IchGuckLive> 1 more Question how many Rev can we get out of a Stepper with 200 Steps per rev does this depend on the Electrical issues
[18:31:01] <IchGuckLive> 2,6V 1,5Ohm 2,9Mh
[18:31:20] <IchGuckLive> if i run this at 24Volts
[18:31:46] <IchGuckLive> can i reach 200Rpm
[18:33:22] <IchGuckLive> or is it on the driver ic ?
[18:34:01] <IchGuckLive> L297/298 combination is not very fast
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[18:56:29] <BrainDamage> hey guys, I have a 3 axis cnc mill, and I'm trying to get a toolpath from pycam, the problem is that the tool movement exceeds the z axis range unnecessarily, so emc halts, where am I supposed to enter a value to cap it?
[19:07:14] <JT-Shop> in pycam?
[19:07:27] <skunkworks> I don't know how many on here use pycam... might have better luck posting in this thread?
http://www.cnczone.com/forums/opensource_software/63716-announce_pycam_-_3d_cnc.html
[19:07:48] <JT-Shop> I've not got it to load yet :/
[19:08:11] <JT-Shop> skunkworks: <= the ZoneMaster
[19:08:16] <BrainDamage> yes, in pycam, thanks for the link
[19:08:26] <skunkworks> last post in the thread was from last month and it was from the author
[19:08:50] <skunkworks> JT-Shop: heh
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[19:11:12] <JT-Shop> might work now in winblows
[19:12:49] <JT-Shop> latest version is at
http://sourceforge.net/projects/pycam/
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[20:22:05] <atom1> JT-Shop, still raining?
[20:22:45] <Paragon39> Does this diagram appear incorrect where it mentions the primary and secondary coils (in the main cut away image)? I would have thought the secondary coils are the ones on the end of the diagram no?
[20:22:47] <Paragon39> http://www.newall.com/technology/
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[20:29:02] <JT-Shop> atom1: sun is out for a bit but more heavy rain expected tonight
[20:29:30] <JT-Shop> http://forecast.weather.gov/MapClick.php?CityName=Poplar+Bluff&state=MO&site=PAH&textField1=36.7639&textField2=-90.4072&e=0
[20:29:41] <atom1> been cloudy here all day
[20:33:19] <archivist> Paragon39, no middle as the secondaries plural cover multiple balls
[20:33:39] <archivist> to average out errors
[20:35:03] <Paragon39> archivist: So are you saying the middle is the pickup coil(s) and the outer is the driver coil?
[20:36:12] <archivist> Paragon39, that what the text says and that is the only way I can see it work
[20:36:43] <archivist> look how a capacitor version works in a digital caliper too
[20:37:29] <Paragon39> Oh OK, I was under the impression that the outer coils shown were the pick-up coils and the center coil was the driver.
[20:40:06] <andypugh> It looks a lot like skunkwork's AcuPins.
[20:41:57] <skunkworks> what?
[20:42:01] <skunkworks> logger[psha]:
[20:42:55] <andypugh> Go back 20 minutes
[20:42:58] <andypugh> http://www.newall.com/technology/
[20:44:19] <skunkworks> ah - yes - I think we had gotten a couple of quotes from them. lookes like a neat setup.
[20:47:59] <Paragon39> I have the MicroSyn on my Mill. I picked it up off ebay.
[20:52:05] <Paragon39> I also picked up some carbon fibre rod and a pack of ball bearings as I wanted to play / dabble with this technology. Clearly im at the early stages ;-)
[20:53:39] <andypugh> paragon36: I might have just the Arduino Shield that you need....
[20:54:17] <archivist> skunkworks did you scan the diagram for the acupins
[20:54:18] <andypugh> http://wiki.linuxcnc.org/emcinfo.pl?ResolverToQuadratureConverter
[20:55:11] <Paragon39> Thanks andypugh... taking a look now...
[20:55:15] <andypugh> Paragon39: Oops, wrong Paragon
[20:55:59] <skunkworks> archivist:
http://electronicsam.com/images/KandT/conversion/accu.pdf
[20:56:28] <archivist> paragon39 should read that
[20:56:36] <skunkworks> andypugh: did you ever figure out the issue with one of the channels on your resolver board?
[20:56:45] * skunkworks has not had time to work on it
[20:57:01] <andypugh> Yes
[20:57:28] <skunkworks> great - what was it?
[20:57:38] <andypugh> I have forgotten what it was, something to do with non-obvious type casting in an expression.
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[20:57:52] <skunkworks> ah - so software :)
[20:58:14] <andypugh> Ah, no, I remember now. Hardware.
[20:58:16] <Paragon39> Thanks Chaps... Looking at the links now...
[20:58:28] <skunkworks> do I need to mod the boards?
[20:59:03] <andypugh> I was running it from 12V rather than 5V (you can do that) but was using the supply not the 5V as the reference.
[20:59:17] <skunkworks> ah
[20:59:56] <andypugh> If you look, P6 on the wiki page is the reference voltage. I really should have used P4 (which is the Arduino regulated voltage).
[21:00:07] <andypugh> But it's fine if you run it on 5V.
[21:00:26] <Paragon39> andypugh: Paragon36 is also Paragon39 ;-) I must still be logged in on another system.
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[21:09:27] <JT-Shop> http://news.yahoo.com/s/nm/20110426/us_nm/us_weather_breach
[21:10:05] <JT-Shop> http://www.kspr.com/news/local/kspr-poplar-bluff-levee-failed-federal-inspection-in-2008-20110426,0,2147042.story
[21:10:56] <JT-Shop> don't look too good for the folks to the south of town
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[21:37:03] <andypugh> So, because they couldn't afford to repair the levee, they don't qualify for funding to repair the levee.
[21:37:45] <JT-Shop> that's our government for you
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[21:47:18] <JT-Shop> I live about 20 miles north of Poplar Bluff but up in the hills above the high water mark
[21:48:12] <andypugh> Did you build the new shed out of Gopher wood, just in case?
[21:51:09] <JT-Shop> no, if it flood at this elevation there is a bunch of folks under water... but the farmers might want to think of that as a building material of choice
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[21:58:33] <andypugh> Hmm, how to model a handwheel?
[21:59:46] <JT-Shop> in cad?
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[22:11:52] <atom1> clay
[22:16:38] <andypugh> Aye, in CAD. Not that I need to.
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[22:16:44] <andypugh> As it exists.
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[22:20:46] <mikegg> andypugh: are using the m8i20?
[22:20:53] <mikegg> *you
[22:21:07] <andypugh> Yes.
[22:21:46] <mikegg> is that ready for the public? I was thinking about trying them on my X/Y
[22:22:13] <atom1> what's special about it?
[22:22:32] <mikegg> serial servo amp interface
[22:23:19] <atom1> what would be a good board to interface a pendant to?
[22:23:21] <mikegg> my servo amps right now use a +/-10VDC pwm generated command signal
[22:23:38] <atom1> i don't have servos
[22:24:02] <andypugh> It's supported in 2.5, so it will be in an actual released version fairly soon.
[22:24:04] <mikegg> which the servo amp interprets and then generates another corresponding pwmgen signal
[22:24:14] <mikegg> awesome
[22:24:40] <andypugh> As more people use it, I suspect that quirks might appear.
[22:24:59] <andypugh> But they won't get fixed until people find them.
[22:25:16] <mikegg> well, let me have a chat with PCW
[22:25:18] <andypugh> I have hooked it up to my machine.
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[22:25:51] <andypugh> Talking of my machine, what should I use as a cover on the front of this?
http://imagebin.org/150304
[22:26:40] <atom1> whittle out an aluminum cover
[22:26:45] <mikegg> I would waterjet a cover
[22:26:57] <andypugh> I am going to the trouble of making a casting (apart from anything else, it's cheaper than buying a block of material and milling it away). So I am wondering if a cast cover would be sensible.
[22:27:35] <andypugh> (if it isn't obvious, that motor-mount is not original :-)
[22:27:41] <mikegg> bigbluesaw.com
[22:27:59] <andypugh> US suppliers are non-preferred..
[22:28:33] <atom1> just some thin alum with the profile and holes
[22:29:02] <andypugh> I am not really asking what will work, I am wondering what would look the part?
[22:29:04] <atom1> if there's clearance already on the pulleys
[22:29:37] <atom1> black anodize it
[22:29:41] <andypugh> I am trying to do everything like the original builders might have. (Hey, it's a hobby after all)
[22:31:18] <andypugh> But I will probably end up with aluminium thick enough to take the screw heas, with a ridua, and painted.
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[22:34:44] <andypugh> Disassembly pics, if anyone is interested.
https://picasaweb.google.com/bodgesoc/Gibbs?pli=1&gsessionid=BOsSv98Ptw6FsHmMCYKFsg#5600023840516281666
[22:34:58] <andypugh> (and following)
[22:37:30] <andypugh> I have one major challenge, I don't think I can get the ballscrew in..
[22:37:37] <andypugh> (on the Y axis).
[22:38:26] <andypugh> The Acme just goes in from the front and then screws into the nut. I don't fancy trying to mount a ball nut the same way.
[22:39:39] <mikegg> big iron. I dig it
[22:39:47] <mikegg> auction?
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[22:51:45] <JT-Shop> a cast aluminum cover would look the part I'd bet
[22:54:38] <Valen> bah cast Al
[22:54:51] <Valen> CnC machined out of billet is the way to go
[22:55:49] <JT-Shop> the cast part has character you can't get from a block :P
[22:57:54] <andypugh> The motor bracket will be cast iron.
[22:58:17] <andypugh> I expect to pay about £30 for ut.
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[23:00:22] <JT-Shop> as cast or finished part?
[23:06:12] <andypugh> Raw casting
[23:06:48] <andypugh> From my pattern. But MDF is a lot easier to work and a lot cheaper than steel/aluminium in that sort of size.
[23:13:53] <Valen> what is the pattern material?
[23:18:34] <ssi> I work with the guy that runs bigbluesaw.com :P
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[23:24:49] <Valen> can he cut glass?
[23:24:58] <Valen> waterjet, window glass
[23:25:12] <mikegg> simon arthur?
[23:25:18] <ssi> yes, simon arthur
[23:25:22] <ssi> he outsources the waterjet
[23:25:27] <ssi> he's got a laser
[23:25:41] <mikegg> yeah I know the guy he outsources to
[23:25:55] <ssi> are you in atlanta?
[23:25:56] <mikegg> didn't he build a hexapod too?
[23:25:58] <mikegg> yep
[23:26:01] <ssi> sweet
[23:26:06] <mikegg> you?
[23:26:15] <ssi> yup
[23:26:17] <ssi> live in kennesaw
[23:26:19] <mikegg> woooaaa!!!
[23:26:21] <mikegg> sweet
[23:26:54] <mikegg> mike.gilsdorf at gmail
[23:27:00] <mikegg> gotta run...drop me a line sometime
[23:27:05] <ssi> awesome, will do
[23:27:11] <ssi> good to have local connections
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[23:42:43] <andypugh> Valen: I use MDF for pattterns, glued together in layers to get the thickness.
[23:44:29] <andypugh> The OK, tonight I have mainly been modelling...
http://imagebin.org/150314
[23:50:41] <The_Ball> andypugh, sweet model, is that for a lathe?
[23:51:10] <andypugh> It's the knee of my mill.
[23:52:07] <andypugh> I am making sure it all fits together and can be assembled before I commit to castings. (most of it exists, only the motor mounting bracket is new)
[23:52:40] <The_Ball> do you do lost foam castings?
[23:55:05] <andypugh> No, I will make a wooden pattern and send it to a foundry
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[23:55:48] <The_Ball> ah, is that feasible for a one off? or do you have good connections ;)
[23:57:51] <andypugh> The piece-cost for sand casting is the same for one as for several, if there is only one pattern.
[23:58:39] <andypugh> These were £25 each
https://picasaweb.google.com/bodgesoc/Gibbs#5511282568768390018
[23:59:26] <The_Ball> not bad at all