#linuxcnc | Logs for 2013-06-12

[00:02:09] <pcw_home> you cannot run linuxcnc on one but they have been used for non-real time I/O
[00:07:22] <ssi> pcw_home: got my spi code running on the hardware, at 22MHz spi, 100MHz core
[00:09:08] <RyanS> What would you expect the max dynamic load to be on the carriage ways of a lathe? Is this depending on only the cutting depth and material
[00:09:31] <RyanS> Stainless steel is probably the hardest you have to deal with diy?
[00:10:24] <toastyde1th> most people don't even attempt stainless
[00:10:36] <toastyde1th> and it's not necessarily hard, just very strong
[00:10:49] <RyanS> Anyway are they the only two factors cutting depth and material?
[00:10:52] <ssi> stainlessisn't so bad as long as you don't let it work harden
[00:11:14] <toastyde1th> no, there's a lot of factors that go into horsepower/force calculation
[00:11:51] <toastyde1th> things like volume removed per minute (depth of cut, width of cut, and feed) and then chip load modifies it
[00:13:17] <RyanS> http://www.ebay.com.au/itm/HGW30-LINEAR-MOTION-CARRIAGE-RAIL-GUIDE-SHAFT-CNC-MACHINE-ROUTER-SLIDE-BEARING-/300874839003?pt=LH_DefaultDomain_15&hash=item460d89b3db for a linear guide based lathe with a distance between centre of 300mm and ummm 150mm swigng
[00:13:41] <ssi> 30mm rails are ENORMOUS
[00:14:01] <ssi> I've got 25mm rails on my plasma table, 5 feet long, and they're far too big
[00:15:25] <RyanS> http://www.ebay.com.au/itm/HGW15-HIWIN-LINEAR-MOTION-CARRIAGE-RAIL-GUIDE-SHAFT-CNC-ROUTER-SLIDE-BEARING-/290878372573?pt=LH_DefaultDomain_15&hash=item43b9b3badd $44 each
[00:16:35] <RyanS> As provisional estimate sufficient for my- lathe concept?
[00:17:21] <RyanS> 1160kg dynamic load
[00:18:13] <ssi> yeah I think 15mm's would be fine
[00:18:17] <ssi> use FOUR per axis
[00:18:21] <ssi> two rails, two blocks per rail
[00:20:08] <RyanS> slap a plate on top to make the carriage, another couple of short rails with another plate on top as the cross slide
[00:20:16] <ssi> yep
[00:20:25] <RyanS> tools on top of that
[00:20:37] <ssi> you might consider doing 20 or 25mm for the Z axis, and 15mm for X
[00:20:47] <abetusk> anyone have a reflow oven here?
[00:21:14] <RyanS> Because parting off is going to have big load?
[00:21:29] <ssi> I dunno
[00:21:31] <ssi> just a gut feeling
[00:21:31] <ssi> :)
[00:22:12] <RyanS> it might... However tail stock....
[00:24:15] <RyanS> aaha! Just get an off-the-shelf rotary table install stepper and you have a turret tool changer
[00:24:46] <ssi> not a bad idea
[00:24:49] <ssi> they can't backdrive
[00:25:24] <RyanS> They can handle the load?
[00:25:30] <ssi> probably
[00:26:09] <ssi> what are you gonna use for a base?
[00:33:58] <RyanS> Chipboard? Just kidding
[00:34:55] <RyanS> Purchase a dead lathe and steal the bed?
[00:35:21] <ssi> not a great option
[00:37:29] <RyanS> Get a big chunk of cast-iron and have someone stick it on a surface grinder? How much could they possibly challenge
[00:37:38] <RyanS> Charge
[00:37:41] <RyanS> Sorry
[00:37:46] <RyanS> Probably a lot
[00:39:46] <Willburrrr2003> hi all, trying to get Modbus talking, but having issues...anyone here got it working that can offer advice?
[00:40:51] <Willburrrr2003> i am trying to communicate through the serial on ttyS0
[00:40:52] <RyanS> What about big piece of rectangular structural steel and fill it with epoxy granite?
[00:41:12] <ssi> now you're thinkin ;)
[00:41:28] <RyanS> You would have to fill it?
[00:41:44] <ssi> would be a good idea
[00:41:52] <RyanS> Concrete?
[00:41:52] <ssi> you want to absorb as much vibration and resonance as possible
[00:41:58] <ssi> epoxy granite I think is the best bet
[00:43:44] <RyanS> I mean you could pour it into a box but then you have t to insert threaded studs
[00:45:16] <Willburrrr2003> have you guys tried this for dampening vibration? http://www3.sympatico.ca/3jdw8/antivibration.htm
[00:49:45] <toastyde1th> it doesn't damp all vibration
[00:49:55] <toastyde1th> just some
[00:51:12] <toastyde1th> and wood turning is a very different beast than metalcutting - even small metalcutting lathes tend to be quite heavy for their size
[00:51:33] <toastyde1th> he's essentially built himself a tuned mass damper
[00:56:15] <Willburrrr2003> oh i understand ghat it will not damp all, but i was thinking that and a nice base....
[00:56:41] <Willburrrr2003> sry about spelling, on my phone tonight and this kb is a pain
[00:56:51] <RyanS> If you have linear rails bolted down to a heavy bed, the bed doesn't have to precision ground?
[01:00:14] <toastyde1th> ryan, it usually is.
[01:00:22] <toastyde1th> (IS ground or scraped)
[01:01:26] <RyanS> it will have commercial rails bolted to it tho....
[01:01:30] <toastyde1th> ...so?
[01:02:02] <RyanS> The rails are what needs to be precise?
[01:02:24] <Willburrrr2003> the rails are only as as good as the surface the are mounted to, right?
[01:02:25] <toastyde1th> the rails are going to be violently bolted to a surface
[01:02:42] <toastyde1th> they're going to take on the peaks and valleys of that surface
[01:03:26] <RyanS> It doesn't matter if the bed is aligned to the rail providing its perpendicular to the other axis? or that's a separate issue?
[01:04:08] <toastyde1th> the bed just has to provide a geometrically flat surface (both rail mounting paths are in the same plane, lack twist, etc)
[01:04:54] <toastyde1th> the bed isn't "perpindicular" to anything
[01:05:12] <toastyde1th> it's just there to make sure there's no oscillation in Z as the table moves
[01:05:23] <Loetmichel> mornin'
[01:05:23] <RyanS> It's probably just better to buy a used cast-iron surface plate? Get it chopped in half
[01:06:02] <toastyde1th> also, the table is usually stacked on top of a second axis - most bed mills have the Y axis on the main casting
[01:06:11] <Willburrrr2003> lol 11pm here
[01:06:19] <Xfriend> can I use timing belt on cnc machine "T5"?
[01:06:23] <toastyde1th> then you have a table sitting on that, to which you mount another set of rails
[01:06:27] <toastyde1th> which forms your x axis
[01:07:14] <RyanS> https://www.youtube.com/watch?v=F1vNveXSprc I would use square rails
[01:07:30] <toastyde1th> the type of rail doesn't matter
[01:07:55] <toastyde1th> i mean for accuracy it does
[01:08:05] <toastyde1th> but at this point the accuracy of the rails themselves are not the major factor.
[01:09:07] <RyanS> Off-the-shelf module.. ?http://www.linearbearings.com.au/Products/LinearModularSlideUnits/LinearScrewDriven/tabid/90/Default.aspx
[01:09:16] <RyanS> Probably stupid expensive
[01:25:57] <RyanS> Here is the lathe carriage http://www.ebay.com/itm/THK-63401S-Ballscrew-Linear-Actuator-Table-for-High-Precision-Heavy-Loads-/200928424315?pt=LH_DefaultDomain_0&hash=item2ec844717b too bad about the shipping
[01:56:23] <DJ9DJ> moin
[03:03:28] <RyanS> bolt this down to something heavy...... instant lathe bed? http://www.ebay.com/itm/Ballscrew-Positioner-16-Travel-/330653313847?pt=LH_DefaultDomain_0&hash=item4cfc792b37
[09:05:00] <liyong_public> Is there anybody can speak Chinese or Japanese.My english is poor...Want to ask some questions.
[09:06:38] <liyong_public> about linuxcnc
[09:11:16] <micges> liyong_public: try
[09:11:21] <cpresser> liyong_public: i do speak very limited japanese. surely not enough for technical questions. just try in english
[09:14:49] <liyong_public> in linuxcnc ,I want to write the parport's output to a file,how can i do
[09:16:57] <mhaberler> halsampler
[09:18:55] <liyong_public> thank you,i'll learn to use it ,is it a tool?
[09:35:15] <micges> liyong_public: see http://www.linuxcnc.org/docs/html/man/man9/streamer.9.html
[10:49:50] <ssi> holy shit
[10:49:58] <ssi> those igus belt-drive slides are like $700 each :(
[10:56:51] <archivist> and being igus and probably friction or play, I would not bother
[10:57:31] <archivist> dunno how people get taken in by some of their stuff :)
[10:58:01] <ssi> some of their stuff is nice
[10:58:10] <ssi> I was expecting that to be quite a bit cheaper
[10:58:17] <ssi> silly me I guess :)
[10:58:54] <ssi> it might be a really slick way to do a laser cutter
[10:58:59] <ssi> quick to put together
[10:59:07] <archivist> is it still plastic sliding in anodised aly
[10:59:14] <ssi> but for $2400 worth of X/Y axis, I'm not willing to take the chance
[10:59:24] <ssi> no it's thompson shaft
[10:59:40] <ssi> you can get them with plastic bushings or bronze or recir-ball
[11:00:00] <archivist> so they cannot even use their own slides :)
[11:00:19] <ssi> I think the slides you're talking about are too small for this
[11:00:49] <ssi> here's the parts in question:
[11:00:57] <ssi> http://www.igus.com/wpck/default.aspx?Pagename=drylin_zlw&C=US&L=en
[11:02:29] * archivist notes the bullet point "low loads"
[11:02:50] <ssi> 300N loads on the 1040 part
[11:03:00] <ssi> you're not gonna build a mill with it
[11:03:05] <ssi> but it'd be fine for a laser :P
[11:04:27] <ssi> weird, the "standard" part is cheaper than the "basic" part
[11:07:07] <archivist> and drylin means DryLin® linear bearings operate on glide pads unlike the common recirculating ball bearing systems.
[11:07:21] <archivist> spastic rubbing
[11:07:49] <archivist> I thing the 300N is in the belt direction
[11:07:56] <archivist> think
[11:08:20] <ssi> lul
[11:08:27] <ssi> doesn't matter, I won't spend that money
[11:08:55] <archivist> and this is the play Max. position variation of the carriage, load dependent.** mm ┬▒ 0,35
[11:09:19] <archivist> sample I saw was a rattling fit
[11:46:15] <CaptHindsight> it also depends on how much your time is worth, if I all I have to do is remove a drive from a box and tighten a few screws vs spend more than a day fabricating something, $700 may be well worth it
[11:47:35] <ssi> I agree, but I dunno what the quality is like for that kind of money
[11:49:23] <archivist> the built in play is for a different use than ours
[11:49:46] <archivist> I can see it in a packaging machine
[12:10:19] <IchGuckLive> hi all B)
[12:11:30] <kb8wmc> IchGuckLive: hello sir, how have you been?
[12:12:22] <cbjamo> seen andypugh
[12:12:42] <andypugh> Just about to disappear again..
[12:12:48] <cbjamo> heh
[12:12:51] <IchGuckLive> kb8wmc: fine as always and all the time
[12:13:30] <cbjamo> Do you have any idea what this error is? "emc/task/taskintf.cc 614: Error on asix 0, command number 104
[12:13:51] <kb8wmc> very good sir
[12:13:57] <andypugh> No, I am afraid I have no idea.
[12:14:39] <cbjamo> Google shows nothing, I looked at the source, its checking "joint->axis" against EMCMOT_JOINT_ERROR_BIT.
[12:15:04] <cbjamo> It just ands them together inside an if statement.
[12:15:23] <andypugh> Yes, I was just looking.
[12:15:25] <andypugh> http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=src/emc/task/taskintf.cc;h=c6225ee818e3976dc2c54cfe6b87dedc1727cb04;hb=HEAD#l612
[12:15:25] <cbjamo> greping the folder for "joint->axis" shows nothing
[12:15:28] <IchGuckLive> cbjamo: are you on 2.5.2
[12:15:40] <cbjamo> IchGuckLive: I'm on joints_axis3
[12:15:57] <IchGuckLive> linuxcnc version
[12:16:12] <cbjamo> sorry, its "joint->flag" not "joint->axis"
[12:16:15] <andypugh> For ja3 you need micges
[12:16:28] <cbjamo> micges?
[12:16:33] <andypugh> I think so.
[12:16:40] <micges> cbjamo: whats up?
[12:17:29] <cbjamo> I'm working with ja3, I'm getting this error when I try to move an axis "emc/task/taskintf.cc 614: Error on asix 0, command number 104"
[12:18:05] <cbjamo> I'll admit that there is a good chance that there is something wrong with my hal file, but I don't know.
[12:18:37] <IchGuckLive> i think he got the wrong entry in the [TRAJ] AXES =
[12:19:04] <IchGuckLive> cbjamo: COORDINATES = X Y Z OR ?
[12:19:16] <micges> cbjamo: there should be another line besides error in terminal
[12:19:16] <cbjamo> Possible, for testing I've paired it down to just one joint and one axis.
[12:19:38] <cbjamo> "joint 0 following error"?
[12:20:13] <cbjamo> otherwise everything looks good.
[12:20:23] <micges> ah so you don't have feedback on joint.0.motor-pos-fb hal pin
[12:20:29] <IchGuckLive> cbjamo: give it a AXES = 3 and COORDINATES = X Y Z as a minimum
[12:20:52] <micges> cbjamo: use pastebin.com to paste your hal file
[12:20:54] <IchGuckLive> cbjamo: is it a plasma with THC
[12:21:56] <cbjamo> My hardware is a 5i22-1 and 3 7i39s, to drive two motors per axis
[12:22:13] <IchGuckLive> thats not the problem
[12:22:30] <IchGuckLive> or do you got servos ,No steppers
[12:22:36] <cbjamo> Servos
[12:22:40] <IchGuckLive> AH
[12:22:49] <IchGuckLive> do you use the gantry skins
[12:22:55] <micges> cbjamo: if so check feedback signals
[12:23:27] <cbjamo> here's the hal file, its a mess: www.pastebin.com/L2hvHRJk
[12:23:47] <IchGuckLive> loadrt trivkins O.O
[12:23:54] <IchGuckLive> no way
[12:24:09] <cbjamo> what?
[12:24:25] <IchGuckLive> cbjamo: look at the gantry config redy example
[12:24:55] <IchGuckLive> you cant drive a servo system with 2 motors on a Axis with trivsskins
[12:25:36] <cbjamo> My understanding was that that was the point of ja3.
[12:26:03] <IchGuckLive> loadrt gantrykins coordinates=XYZY
[12:26:21] <IchGuckLive> net J0pos axis.0.motor-pos-cmd => axis.0.motor-pos-fb
[12:26:23] <IchGuckLive> net J1pos axis.1.motor-pos-cmd => axis.1.motor-pos-fb
[12:26:24] <IchGuckLive> net J2pos axis.2.motor-pos-cmd => axis.2.motor-pos-fb
[12:26:25] <IchGuckLive> net J3pos axis.3.motor-pos-cmd => axis.3.motor-pos-fb
[12:26:32] <IchGuckLive> there is your ERROR
[12:27:22] <andypugh> IchGuckLive: Actually, that's not right for ja3 either, I don't think.
[12:27:33] <micges> cbjamo: add this line: net x-pos-fb axis.0.motor-pos-fb hm2_5i22.0.endcoder.00.position
[12:27:56] <micges> cbjamo: and see if position changes when you move motor by hand
[12:28:11] <andypugh> I think that what is needed for ja3 is "gentrivkins". But micges knows more than me (by about a billion percent)
[12:28:21] <IchGuckLive> mic is the pro on this job so let him explain
[12:28:53] <IchGuckLive> andypugh: agree with hundert percent O.O
[12:29:46] <cbjamo> Ok, and gantryvkins will handle multiple motors on each axis?
[12:29:59] <micges> yes
[12:30:05] <cbjamo> good.
[12:31:03] <IchGuckLive> cbjamo: there are example files even in sim/axis1
[12:31:16] <micges> cbjamo: did you checked feedback?
[12:31:26] <cbjamo> trying to...
[12:31:47] <cbjamo> pin "hm2_5I22.0.encoder.00.poistion
[12:31:53] <cbjamo> does not exist
[12:32:33] <cbjamo> ah, nvm it is there, derp
[12:33:23] <cbjamo> was a typo
[12:33:39] <cbjamo> howwever, there is no feedback
[12:35:17] <cbjamo> hmm, that makes sense, since I don't have the encoders hooked up. I can't till the rest of the machine is built, as we are using linear encoders. Is it possible to drive the motors using just the hal feedback?
[12:39:02] <micges> cbjamo: I don't think so.
[12:39:11] <micges> andypugh: ?
[12:39:26] <IchGuckLive> as idiscribed above
[12:39:52] <micges> ah yes
[12:41:04] <micges> cbjamo: you can make loopback on every motor to use Axis but not move motors
[12:42:45] <cbjamo> Ok, thats a shame, my partner is building the frame right now, so it shouldn't be too long before I can get it together.
[12:42:55] <pcw_home> It is possible to use just Hall commutation (but a bit 'ticky')
[12:43:25] <cbjamo> Well, I knew that it was possible electricly, but I wasn't sure if linuxcnc could do it.
[12:43:45] <cbjamo> How do I make the loobbacks, so that I can get the hal file setup.
[12:44:26] <micges> <IchGuckLive> loadrt gantrykins coordinates=XYZY
[12:44:27] <micges> <IchGuckLive> net J0pos axis.0.motor-pos-cmd => axis.0.motor-pos-fb
[12:44:27] <micges> <IchGuckLive> net J1pos axis.1.motor-pos-cmd => axis.1.motor-pos-fb
[12:44:27] <micges> <IchGuckLive> net J2pos axis.2.motor-pos-cmd => axis.2.motor-pos-fb
[12:44:27] <micges> <IchGuckLive> net J3pos axis.3.motor-pos-cmd => axis.3.motor-pos-fb
[12:44:40] <micges> change axis to joint
[12:45:08] <micges> and check if XYZY is your setup
[12:45:24] <micges> and change kins to gentrivkins
[12:45:28] <micges> should work
[12:46:31] <cbjamo> for the coordinates, I should set that to XXYYZZ, for two motors per axis?
[12:46:54] <cbjamo> and does the order matter?
[12:46:58] <micges> on every axis?
[12:47:08] <cbjamo> yes
[12:47:17] <micges> then yes
[12:47:28] <cbjamo> does order matter?
[12:48:26] <micges> order is same as your motors order
[12:49:32] <cbjamo> ok and axis.0.motor-pos-cmd becomes joint.0.motor-pos-cmd?
[12:49:37] <micges> yes
[12:49:43] <cbjamo> and I'll need 0-5?
[12:49:47] <micges> yes
[12:49:52] <cbjamo> thanks
[12:50:18] <micges> [TRAJ] AXES = XYZ
[12:50:30] <micges> [KINS] JOINTS = 6
[12:51:47] <cbjamo> my ini doesn't have a [KINS], is there anything else I'll need there?
[12:52:41] <micges> only JOINTS is needed
[12:53:04] <cbjamo> and under [TRAJ] is is AXES = XYZ or COORDINATES = XYZ?
[12:54:29] <micges> COORDINATES
[12:55:12] <cbjamo> And for AXES?
[12:55:25] <micges> 3
[12:57:27] <cbjamo> hmm, says pin 'joint.0.motor-pos-cmd' does not exist
[12:58:26] <micges> the you don't have ja3
[12:59:43] <cbjamo> hmm, I'm fairly certain I do, but I may have botched a git command. How should I check?
[13:00:29] <IchGuckLive> reed section 3.2.9 in the integreader manual please cbjamo
[13:00:51] <micges> cbjamo: git status
[13:01:28] <cbjamo> On Branch joints_axes3
[13:02:10] <IchGuckLive> on Branch THEN its JOINTS = 4 in the [TRAJ] section
[13:02:21] <micges> did you recompile after branch change?
[13:02:28] <cbjamo> yes
[13:02:57] <Tecan> those DC to DC Buck Step Down Converter Modules on ebay work awesome
[13:03:22] <Tecan> put one on my computer ps for my led's around work area
[13:03:27] <IchGuckLive> Tecan: yews they are good and cheep
[13:04:11] <cbjamo> Ah, I had forgotten to change to gentrivkins, but now it says it cant find that
[13:04:23] <IchGuckLive> Tecan: http://www.pollin.de/shop/dt/NDc5OTgxOTk-/Bausaetze_Module/Bausaetze/Step_Down_Wandler_Bausatz.html 4,5USD
[13:04:55] <Tecan> http://www.ebay.ca/itm/400369337180?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
[13:05:05] <Tecan> 5 usd for a cooler one
[13:05:53] <IchGuckLive> cbjamo: on a real stepper systems i woudt go for real "loadrt gantrykins coordinates=XYZY
[13:09:13] <cbjamo> IchGuckLive: I'm using servos
[13:09:44] <IchGuckLive> sorry seervos ! B)
[13:10:22] <IchGuckLive> cbjamo: i got 140 stepper mashines so
[13:14:37] <cbjamo> np
[13:21:01] <IchGuckLive> cbjamo: i got one last question as its late here im going offline WHY arend you on the Standard new livcd install and updated just to 2.5.2
[13:21:16] <IchGuckLive> all you need is in this install already included
[13:22:32] <cbjamo> I am, then i got the source for ja3 from git and compliled it. I was under the impression that without it I would have a hard time with having mutliple motors per axis.
[13:23:35] <IchGuckLive> imagin you are not the first how likes to drive its mashine with 2 motors per axis
[13:23:57] <IchGuckLive> ok its like it is have fun
[13:24:04] <IchGuckLive> im off for today By
[13:41:03] <cbjamo> so, gentrivkins isn't even in my source, unless it is hidden away somewhere other than src/emc/kinematics
[13:51:33] <cradek> cbjamo: gentrivkins is in the joints_axes3 branch
[13:51:55] <cbjamo> I'm on the joints_axes3 branch
[13:53:19] <cradek> then I cannot explain it: http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=tree;f=src/emc/kinematics;h=1f8cccb3bcb172ee57086a3c7e41e9bd7d163891;hb=refs/heads/joints_axes3
[13:53:54] <cradek> perhaps you aren't in the branch you think you are
[13:54:04] <cbjamo> git status reports ja3
[13:54:22] <cradek> git branch
[13:54:40] <cbjamo> also shows as being on ja3
[13:55:22] <cradek> maybe your local joints_axes3 is not tracking origin/joints_axes3
[13:55:45] <cbjamo> hmm, how do I check that?
[13:55:55] <cradek> how did you create the branch?
[13:56:45] <cbjamo> I was following the instructions on the wiki
[13:56:54] <cradek> % git branch -v -v |grep joints_axes3
[13:56:54] <cradek> joints_axes3 e56525f [origin/joints_axes3: behind 1] tests: update ini files for ja3
[13:57:02] <cradek> looks like this tells you what it's tracking
[13:58:08] <cbjamo> hmm, I got nothing, looks like I messed up a git command, which sucks, since it take this computer about an hour to comple :(
[13:58:53] <cbjamo> do you know how to remove my local branch?
[13:59:44] <cbjamo> or should I just nuke the folder and start from scratch?
[16:13:01] <DJ9DJ> gn8
[21:57:44] <PetefromTn> Evening folks
[21:57:55] <ssi> howdy pete
[21:58:46] <PetefromTn> Howdy...
[22:04:48] <skunkworks> boy - time for bed here
[22:09:48] <Tecan> word of wise only weld one side of bearing
[22:15:08] <ssi> they don't move well when you weld them together :P
[22:15:11] <Valen> welding bearings? sounds like a bad plan
[22:20:20] <tjb1> intel d525mw is now $200 on ebay....
[22:23:03] <Valen> going up in price?
[22:23:04] <Valen> :->
[22:23:07] <Valen> :-< rather
[22:23:30] <Connor> Sounds about right.. since they're not making them anymore..
[22:23:44] <Valen> has anybody tried the 3rd party atom boards?
[22:24:44] <jdh> not me, I was scared of them.
[22:27:22] <jdh> http://www.orbitmicro.com/global/boxd525mw-p-16817.html?ref=base&gclid=CJKXsIuI4LcCFVRk7AodzGAAEw
[22:28:21] <jdh> 115 on amazon
[22:29:50] <jdh> I want to cut 14 1.25" holes in 0.25" 6061. I tried a hole saw in my G0704, but the motor kept bogging down (using the quill)
[22:34:11] <PetefromTn> Why don't you just mill them?
[22:34:12] <tjb1> jdh: legit website?
[22:34:36] <jdh> tjb1: no clue. The amazon one looks good though. http://www.amazon.com/BLKD525MW-Intel-D525MW-Desktop-Motherboard/dp/B005ZNPDWC/ref=pd_sim_sbs_e_2
[22:34:55] <jdh> Pete: I could, but that's more painful to set up.
[22:34:59] <tjb1> jdh: thanks, might grab another to have before they are all gone
[22:35:16] <jdh> the .25" aluminum is really 2" square tubing, 0.25" wall thickness
[22:35:44] <jdh> I need through holes through the tubing and lining them up might suck.
[22:36:02] <PetefromTn> How is that more painful to setup?
[22:36:20] <PetefromTn> Seems like a three flute slam dunk to me LOL
[22:36:57] <jdh> I can mark the other side with the pilot bit from the hole saw through the first side.
[22:37:33] <PetefromTn> I PRESUME the holes need not be pretty then ..
[22:38:02] <jdh> not really, there is a piece of 1.25" tubing going through them and they will be tig'ed to the square tubing
[22:38:58] <jdh> I'm kind of surprised the motor did that. I wasn't using much force on the quill
[22:39:45] <PetefromTn> What's the HP?
[22:39:58] <jdh> depends on who you ask. 1 chinese HP
[22:40:05] <jdh> but, I think it's a 600 watt motor
[22:41:27] <PetefromTn> A 1.25 inch hole saw can easily stop my drill and try to break my wrist lol
[22:42:28] <Connor> Try using a large diameter hole saw in 3/4" MDF.. :)
[22:42:38] <Connor> If you don't know the tricks.. you'll burn it up.
[22:42:44] <jdh> Connor: ever stalled your stock motor?
[22:43:12] <Connor> Not milling... I did when using it as a lathe.. and shortly after is when it burned up.
[22:43:29] <jdh> guess I need to do the belt thing
[22:43:39] <Connor> but I think it burned up because I got some swarf in the motor.. because it was horizontal.
[22:43:47] <Connor> You burn yours up ?
[22:44:00] <jdh> no, but it doesn't seem to have any torque.
[22:44:16] <PetefromTn> Was drilling a 2.5 inch hole in some 16 gauge steel sheet today and almost jacked up my wrist.
[22:44:17] <Connor> you check the torque limit pot on the speed controller.
[22:44:30] <jdh> I re-wateched Hoss' video of cutting stainless with a .5" end mill. I don't think mine could do anything like that.
[22:44:33] <jdh> no.
[22:45:36] <jdh> if you tweak the torque pot, aren't you more likely to fry it?
[22:46:29] <Connor> BTW, the trick using a whole saw in MDF, start the whole to mark the outside edge.. then using something like a forstner bit drill a hole on the inside edge of hole.. this lets the mdf swarf esacpe and not burn up your whole saw. :)
[22:46:38] <Connor> Only if you stall it.
[22:47:22] <PetefromTn> Hell if you've got a forstner bit what the hell do you need the hole saw for LOL
[22:47:38] <Connor> I've stalled my treadmill motor a few times trying to tap.. (with a hand tap)
[22:47:51] <Connor> PetefromTn: Don't have one that 3" big ?
[22:48:12] <Connor> Also, not as messy..
[22:48:34] <PetefromTn> Yeah so is the hole
[22:49:35] <PetefromTn> Damn it was hot here today....
[22:49:45] <Connor> and VERY humid.. :(
[22:50:09] <jdh> 94F and 90% humidity here
[22:50:18] <Connor> I think I'm going to have to buy a wall AC unit for my shop.. I have one.. but.. it's WAY to large for my shop..
[22:50:20] <PetefromTn> It was even warm in the shop and it usually stays pretty comfy in there
[22:50:28] <Connor> plus, I want one with heat.
[22:50:43] <Connor> PetefromTn: You keep yours too hot for me. :)
[22:50:52] <jdh> I got a 2ton window unit for my garage. It was nice today.
[22:50:54] <Connor> I like my shop around 68
[22:51:08] <PetefromTn> You need one of these portable AC units like I got while I try to get my house AC fixed.
[22:51:16] <Connor> but, I have issues regulating my temperature.
[22:51:17] <PetefromTn> It kicks ass
[22:52:04] <Connor> this one I have is like 5 or 6 years old now.. and never been out of the box..
[22:52:23] <PetefromTn> .what size is it?
[22:52:27] <Connor> I think I may try and sell it on Craigs list.. and use the $$$ for smaller one.
[22:52:33] <Connor> Let me look.. been a while.
[22:53:22] <Connor> 12,000 btu. 120v 15amp
[22:54:00] <PetefromTn> Hmm I got an 7 or 8 k one upstairs that works great.
[22:54:42] <jdh> I have a 7k one for post-hurricane. Cheap, no electronics and runs off my generator.
[22:55:16] <PetefromTn> You in Fla?
[22:55:23] <jdh> coastal NC
[22:55:26] <Connor> The room is 11.5 x 7.
[22:55:45] <jdh> get on I-40 East. Turn left right before you hit the water.
[22:55:56] <PetefromTn> Lol
[22:55:57] <Connor> so, around 80 square feet.
[22:56:14] <PetefromTn> Like a closet LOL
[22:56:15] <jdh> you don't need much for that
[22:56:29] <Connor> no. 5 ot 6k would be more than enough.
[22:56:32] <jdh> cheapest thing you can find would probablyi work fine
[22:56:46] <Connor> I have a smaller one.. but.. it stopped working.. I think it might be out of coolant..
[22:57:01] <PetefromTn> This one would freeze you out LOL
[22:57:03] <jdh> not worth fixing
[22:57:10] <Connor> jdh: I want one with built in heat..
[22:57:20] <jdh> oh, those are pricey.
[22:57:22] <PetefromTn> It does have a remote control here somewhere
[22:57:43] <jdh> there have been a few days I wanted heat, but not many.
[22:57:50] <PetefromTn> No heat tho
[22:58:15] <Connor> My smaller one does too.. and.. I'm not sure it DOESN'T work.. I was using it help supplement my sun room which is 12 x 22
[22:58:49] <PetefromTn> Like I said they make these portable units with AC and heat and they are pretty sweet.
[22:59:48] <PetefromTn> Also don't have this big box sticking out the side of your house.
[23:00:23] <Connor> Yea. but those take up floor space. :(
[23:00:38] <Connor> which is HUGE premium in my shop.
[23:00:40] <PetefromTn> Hang it on the wall
[23:01:18] <Connor> I don't think I'm going to find a small AC with heat.. looks like most of those are much bigger.
[23:03:54] <PetefromTn> Well I'm tired guys gnight..
[23:04:01] <Connor> g'night
[23:55:39] <Tecan> http://i.imgur.com/BKOyfa6.jpg