#linuxcnc | Logs for 2012-10-07

[02:03:17] <DJ9DJ> moin
[06:25:24] <r00t4rd3d> yay, working on sunday! FML.
[06:27:44] <DJ9DJ> fml? for my life?
[06:33:20] <Loetmichel> Fuc* my life
[06:33:21] <Loetmichel> ;-)
[06:33:35] <Loetmichel> vermutlich
[06:33:43] <Loetmichel> da is jemand ein bissi empfindlich
[06:33:59] <Loetmichel> oh, english
[06:34:09] <Loetmichel> sorry
[06:35:22] <Loetmichel> someone seems to be a bit thin-skinned over ONE sunday at work.
[06:35:22] <DJ9DJ> hmm kay ;)
[06:35:35] <DJ9DJ> Loetmichel works every sunday ;)
[06:35:45] <Loetmichel> not every...
[06:35:47] <DJ9DJ> he likes that
[06:35:49] <DJ9DJ> ;)
[06:35:53] <Loetmichel> bu i will do some work today
[06:36:43] <Loetmichel> ... if i can successfully fight my inner lazydog ;-)
[06:37:18] <DJ9DJ> hihi
[06:37:34] <DJ9DJ> you mean if your wife lets you...
[06:38:07] <DJ9DJ> milling noises on sunday, yay :)
[06:38:55] <Loetmichel> just at hte moment we both got up. coffee is done and we were about to return in bed to some episodes of SG-1 as my wife got the full dvd package yesterday ;-)
[06:39:16] <Loetmichel> ... but maybe later i will do some aluminium sheets ;)
[06:39:19] <DJ9DJ> yay, SG-1 is great
[06:39:47] <Loetmichel> as for now we have the cvomplete stargate on DVD
[06:40:05] <Loetmichel> sg1, atlantis and universe, all complete ;-)
[06:40:13] <Loetmichel> pricey fun ;-)
[06:40:20] <DJ9DJ> :-)
[07:11:21] <jthornton> http://dynospindles.com/vault/technical/Book-of-Spindles-Part-2.pdf
[07:13:53] <gmouer> thanks John, needed some light reading to go with the morning coffee
[07:14:54] <jthornton> lol
[07:19:48] <gmouer> some nice feed/speed charts in that doc I am going to mill some 4140 prehard today and drill/tap it, debating speed/feeds for the bridgeport
[07:27:53] <jthornton> I've machined hardened tool holders before and if you take a big enough bite out so the steel stays cool to the touch without coolant your golden
[07:28:37] * jthornton ponders a feed and speed calculator design
[07:28:56] <gmouer> I face milled some the other day, 2" face mill, about .050 doc, stalled the spindle !!! a attention getter, never had that happen before
[07:29:33] <jthornton> yea, that would get your attention fast
[07:29:44] <jthornton> a BP knee mill?
[07:31:04] <gmouer> yes, but in fairness, I leave the head pulley drive set at 3300rpm and let the vfd do all the speed change work, so that facemill running at about 1k rpm was in a area of low motor rpm/not much torque multip by the belt drive etc.
[07:31:47] <gmouer> still, a attention getter !! 4140PH showed that weakness quick
[07:32:23] <jthornton> since converting mine to linuxcnc I've been running the spindle at 1800 and setting the variable pulley to get final rpm
[07:33:00] <gmouer> so you leave the motor rpm constant and vary the mechanical pulley drive?
[07:33:11] <jthornton> I "think" I want to change out the variable speed belt drive and replace it with a timing belt
[07:33:24] <jthornton> yes, to get the best torque out of the motor
[07:33:52] <gmouer> what do you do for program controlled speed settings then?
[07:34:28] <jthornton> I have a GS2 VSD that is controlled by linuxcnc and just put in S1800 as I have to be there to change tools anyway
[07:34:44] <jthornton> so when I change a tool I just dial up the correct speed
[07:35:01] <gmouer> ok, gottcha there are some nice articles and info on timing belt drives for the bp on cnczone
[07:35:20] <jthornton> I've not seen them
[07:35:44] <jthornton> mine is a series 1 with a 1 1/2hp spindle motor
[07:35:49] <gmouer> one of the bp guys made and sold them commercially, he put pics and details in a thread
[07:36:18] <jthornton> any search terms that might get a hit on that?
[07:36:33] <gmouer> ok, close, mine is a 2hp vari speed head, a v2e3 cnc mill, sort of a rare breed
[07:37:09] <jthornton> mine came with an Anilam 3 axis CNC conversion on it
[07:37:13] <gmouer> I am sure I can find it, I will post a link in a bit
[07:37:20] <jthornton> thanks
[07:43:16] <gmouer> peek at post#5 for starters, this is the guy that did it, more details in other threads http://www.cnczone.com/forums/bridgeport_hardinge_mills/55030-varispeed_vfd_conversion.html
[07:43:32] <jthornton> thanks
[07:44:27] <gmouer> that is the nicest conversion I have seen. Very professional
[07:45:48] <jthornton> that is nice and I like the idea of using a poly v belt
[07:46:45] <gmouer> yes, the later bridgeport interact knee mills used a poly belt and fixed drive, they had a dc spindle motor though
[07:47:11] <gmouer> the disk brake in that thread is pretty trick too
[07:47:28] <jthornton> my BP VMC uses poly belt drive on the spindle with a 7.5hp servo drive
[07:47:38] <jthornton> yes that is much nicer than the stock brake
[07:47:57] <gmouer> oh yea, that 308 that I am so jealous over after seeing it
[07:48:53] <gmouer> vmc's that can fit under a garage door are few and far between
[07:52:50] <jthornton> it fit under the normal door with the Z all the way down
[07:53:47] <jthornton> nice, I just found a tutorial on using sqlite with python... just what I was looking for
[07:56:50] <gmouer> being new to linuxcnc, I am using a need to know approach, my head still hurts after sorting out that G10/G68 situation, that is why I am going to mill up some toolholders for the new lathe, it gives the headache a break
[07:57:19] <jthornton> and time to think about it...
[07:57:52] <gmouer> some battles are more bloody than others, I usually win though
[07:58:45] <jthornton> yep, I keep trying till I get what I want or find out that what I wanted was not what I needed
[07:59:37] <gmouer> here is a lathe identical to the one I just finished, got mine for $500 though, thats why I couldn't pass it up http://www.ebay.com/itm/American-Way-Gang-Tool-CNC-Lathe-with-PC-Based-CNC-Control-/330792638933?pt=LH_DefaultDomain_0&hash=item4d04c719d5
[08:01:07] <jthornton> cool lathe
[08:02:07] <gmouer> didn't need it, still not sure what I am going to do with it, but it was too good to pass up and the retrofit got my feet wet with linuxcnc
[08:02:30] <jthornton> that a 5c collet?
[08:02:34] <gmouer> yes
[08:02:52] <gmouer> under the collet nose is a standard a2-5 spindle mount
[08:04:07] <andypugh> It looks like Tormach are going with Gang Tooling on their lathe. The approach does have some attractions. I guess the only real problem is that you can't use more than 2 tools at the same time as the tailstock.
[08:05:00] <gmouer> I think it all comes down to what kind of work you anticipate doing, gang is great for some things, a pain for others
[08:05:40] <gmouer> on my 14x40 that I retrofitted, I am going to be building a 8 tool auto tool turret for it
[08:06:02] <gmouer> based on those german plans that are around the net, but with some tweaks
[08:07:20] <gmouer> got side tracked for a while when this new lathe fell into my lap though
[08:12:27] <mazafaka> I have broke two end mill bits today because of collet which wasn't thightly clamped. Now only one tool for fining is left, for two plates: 25-mmm thick one and 40-mm thick one. I'll go back and work///
[09:08:33] <L84Supper> anyone here ever work with micro aerosol nozzles?
[09:08:53] <L84Supper> http://www.optomec.com/Additive-Manufacturing-Technology/Inkjet similar to aerosol jet?
[09:11:29] <L84Supper> http://www.youtube.com/watch?v=Kae14t9YIXE
[09:54:37] <andypugh> I wonder if it could be used for high-reosolution 3D printing?
[09:55:37] <pcw_home> maybe with some kind of height feedback
[09:57:23] <L84Supper> andypugh, it already is
[09:57:49] <andypugh> One day I am sure I will invent something first :-)
[09:57:52] <JT-Shop-2> fired up the grinder spindle and it is super quiet and runs perfect...
[09:57:57] <L84Supper> heh
[09:58:11] <andypugh> Grinder spindle motors tend to be a bit special.
[09:58:11] <pcw_home> also for fine pitch solder paste
[09:58:12] <JT-Shop-2> I don't know how it ran before the way it was wired up
[09:59:00] <Tom_itx> my bud had to replace a ballscrew bearing on his mill. the dealer wanted $1400.00 for one bearing
[09:59:03] <JT-Shop> it's a normal motor more or less with an 0 ring drive
[09:59:06] <Tom_itx> double race
[09:59:25] <L84Supper> pcw_home, 3d printed multilayer PCB's on your desktop are not too far off
[09:59:37] <Tom_itx> i think he finally found one for $700
[09:59:54] <pcw_home> Sounds like the dealer is pocketing a fair proportion
[10:00:08] <Tom_itx> or the bearing quality is higher
[10:00:15] <andypugh> Bearing pricing is crazy. The company my dad worked for routinely got 95% discount off of list price.
[10:00:20] <Tom_itx> or both
[10:00:32] <pcw_home> hey they had that in to 70's (Multiwire)
[10:00:50] <Tom_itx> i forgot to bring the number with me but i did tell him about vxb
[10:00:56] <andypugh> Multiwire is still there, too.
[10:01:04] <Tom_itx> although they didn't stock that one
[10:01:21] <Tom_itx> german bearing
[10:01:35] <Tom_itx> bolem?
[10:01:39] <Tom_itx> i forget the brand
[10:01:43] <JT-Shop> now I need to find a source for bjiur metering blocks
[10:02:34] <L84Supper> pcw_home, we are reducing the cost of conductive ink by 10-100x so it can replace plating, drilling and laminating
[10:03:37] <L84Supper> the optomec aerosol jets are too slow and clumsy to work with for production
[10:05:12] <L84Supper> but it's a nice approach for higher viscosity fluids that can't be deposited with inkjet
[10:05:37] <L84Supper> inkjet 2-20cps, aerosol jet 1-1000 cps
[10:10:57] <pcw_home> Looks like a good thing for solder paste or other metallic emulsions that get sintered (hybrids etc)
[10:11:34] <L84Supper> yes
[10:12:30] <L84Supper> think about being able to print a multilayer PCB on your desk in the same time it takes to print out the layers on your desktop printer for proofing
[10:12:55] <L84Supper> and below 3 mill trace and space
[10:13:35] <pcw_home> nice for protos (as long as you dont need copper for thermal/ conductivity reasons)
[10:14:37] <L84Supper> good for production since the boards can reproduce 0.5-2oz copper on power ad ground layers
[10:14:53] <L84Supper> the conductivity is very close to bulk copper
[10:15:16] <andypugh> L84Supper: Have you seen http://www.hitachi-chemical.com/products_pwb_05.htm ? That basically disposes of the whol concept of layers.
[10:15:30] <L84Supper> the trick has been getting everything into one machine
[10:15:35] <pcw_home> I wonder about production (hard to beat 2d imaging for speed)
[10:15:54] <pcw_home> (like ebeam vs masks)
[10:16:39] <L84Supper> andypugh, yeah, the 3dprinters can print non-planar conductors
[10:16:53] <pcw_home> sounds great for protos or 3D printed objects
[10:17:00] <L84Supper> pcw_home, it's as fast as 2d imaging
[10:17:13] <andypugh> Gadhets with the wires in the structure.
[10:17:27] <pcw_home> you mean seconds per card?
[10:17:52] <L84Supper> so it's actually faster that traditional plate, drill, laminate, etch etc for multilayer
[10:18:04] <L84Supper> that/than
[10:19:28] <L84Supper> the tech has actually been working for a while but it's a big patent minefield holding it back
[10:19:56] <L84Supper> slowing it down actually vs holding it back
[10:22:19] <L84Supper> ~25 microOhms cm vs 1.7 microOhms cm for bulk copper
[10:22:31] * JT-Shop wonders if soaking them in carb cleaner will free them up?
[10:22:49] <L84Supper> it will probably get closer in the next few years as the process gets improved
[10:23:34] <pcw_home> conductive epoxy for part attach?
[10:24:46] <L84Supper> pcw_home, or even traditional solder paste
[10:24:56] <andypugh> JT-Shop: Worth a try, as is an ultrasonic tank
[10:25:08] <L84Supper> embedding inductors is easy
[10:25:19] <JT-Shop> good idea, my neighbor has an ultrasonic cleaner
[10:25:29] <L84Supper> same for small value capacitors and resistors
[10:26:06] <L84Supper> ultrasonic bonding / welding also works
[10:26:10] <andypugh> <imagines JT getting into a truck to drive 100 miles to the neighbour>
[10:26:32] <JT-Shop> not quite that bad, he lives about a 1/2 mile away
[10:27:17] <pcw_home> metering nozzles plugged?
[10:27:24] <JT-Shop> some are
[10:27:27] <L84Supper> we have been using LinuxCNC so far to control the printers
[10:30:34] <pcw_home> We have a customer doing something related (bigger and cruder though)
[10:30:36] <pcw_home> we thinking of ways to use halstreamer and some mods of the encoder
[10:30:37] <pcw_home> counter to "paint" the data stream out
[10:30:44] <pcw_home> we are thinking
[10:30:50] <L84Supper> at some point we have to settle on whats the best way since it's not a CNC machine but there are lots of similarities
[11:44:01] * Loetmichel makes a few aluminium sheets for work... on sunday.. i must be mentally challenged... -> http://bambuser.com/v/3043905
[11:47:16] <skorket> I rammed my tool into the work and now I'm concerned that I've damaged the spindle. Is this a common thing that happens? Is there any way to tell or to fix it if it's affected the runout?
[11:47:25] <IchGuckLive> Hi all around the Globe
[11:47:51] <L84Supper> Guttentag
[11:48:00] <IchGuckLive> skorket: check it first
[11:48:20] <IchGuckLive> use a 0.0001 dial
[11:48:53] <IchGuckLive> skorket: WHY dident you check the Gcode first
[11:49:13] <IchGuckLive> L84Supper: it is so nice here in germany
[11:50:00] <L84Supper> IchGuckLive, any octoberfest fun this year?
[11:50:41] <IchGuckLive> yes it ends tonight
[11:50:54] <IchGuckLive> 4hr to go in 2012
[11:51:14] <IchGuckLive> and 2Days to the Mega Jump in Rosswell
[11:51:15] <skorket> IchGuckLive, I move it 'by hand' and I misstyped
[11:51:29] <IchGuckLive> BAD
[11:51:34] <skorket> Is there such a thing a laser dial?
[11:51:59] <IchGuckLive> did you hear strange noises of the spindel
[11:52:06] <skorket> IchGuckLive, what's the alternative? I have different work that I want to have done, I need to eyeball the position
[11:52:45] <IchGuckLive> skorket: measuring tape
[11:52:54] <FinboySlick> skorket: And going slow when jogging.
[11:52:58] <IchGuckLive> but that gives you only a idee
[11:53:24] <IchGuckLive> take a pin H7
[11:53:44] <IchGuckLive> move to a final dimension Block
[11:54:01] <IchGuckLive> and turn at min speed 10-50
[11:54:15] <IchGuckLive> jog 0.005
[11:54:25] <IchGuckLive> see what happens
[11:54:36] <skorket> I'm sorry, what is jogging?
[11:54:54] <IchGuckLive> movement by one klick
[11:55:45] <skorket> I don't hear any strange noises from the spindle
[11:56:12] * Loetmichel makes a noodle sieve otu of this aluminium sheets ;-)
[11:56:15] <Loetmichel> out
[11:56:56] <IchGuckLive> skorket: then you are fine
[11:58:48] <pcw_home> I guess brinnelling the spindle bearings is a risk with a crash
[11:59:35] <IchGuckLive> pcw_home: is there a note on your page what liit switches are to use NC is this NPN or PNP
[11:59:53] <IchGuckLive> ormal close
[11:59:57] <IchGuckLive> N
[12:00:23] <pcw_home> PNP (or NC mechanical connected to + power)
[12:01:02] <IchGuckLive> Thanks
[12:01:07] <pcw_home> so normal (safe) condition is a high signal
[12:01:17] <IchGuckLive> i know
[12:01:23] <andypugh> PNP / NPN is something of a misnomer, or at best an umperfect metaphor, for ways to wire limit switches.
[12:02:01] <pcw_home> proximity sensors and the like are often named that way however
[12:02:50] <andypugh> Indeed, but it still bugs me if they clearly aren't made of layers of N-type and P-type.
[12:02:51] <IchGuckLive> one more question pcw_home for treading on lathe with 7i76 what encoder for the spindel do you think to use 100-1024 ppr
[12:02:56] <pcw_home> PNP meaning a sensor with a sourcing output
[12:02:58] <pcw_home> NPN meaning a sensor with a sinking output
[12:03:34] <pcw_home> up to you any should be OK unless you have really high RPM
[12:03:43] <andypugh> IchGuckLive: The higher the better, 7i76 can count fast.
[12:04:05] <IchGuckLive> so i go for 1024
[12:04:06] <L84Supper> do electrons fall or rise faster? :)
[12:04:26] <jthornton> depends on your point of view
[12:04:38] <alex4nder> and the direction of your bias resistors. ;)
[12:04:45] <alex4nder> and/or pushing and pulling
[12:04:46] <L84Supper> haha
[12:04:59] <pcw_home> 1024 PPR is 4096 counts/rev so 7I76 encoder limit is about 30,000 RPM with 1024 PPR
[12:05:20] <pcw_home> (encoder may no go that fast however)
[12:05:41] <IchGuckLive> is there anywhere a example for turret with steppers controlled
[12:06:56] <L84Supper> pcw_home, do you have anything up to 36V 50A in a 7i29 card?
[12:07:50] <skorket> hmm, ok, maybe you guys will have some suggestions. I just measured my runout with a depth indicator pushed into the bit sideways and it looks like it's in the 1-2mil range
[12:08:25] <skorket> I just ran a test though, routing out a PCB with a 25 deg bit and I still wasn't getting traces when the pitch was set to 20 mil
[12:08:39] <skorket> any suggestions on what's happening?
[12:09:19] <pcw_home> L84Supper No, 50A requires pretty special PCB work >1" wide traces even with 2 Oz copper
[12:10:06] <L84Supper> pcw_home, just checking, it comes up from time to time
[12:10:49] <pcw_home> If I just put lower voltage lower on resistance FETS in I would still have a bunch of VIAs that would go
[12:11:00] <L84Supper> yeah big mosfets and #6 conductors
[12:11:13] <L84Supper> yeah, limited by the PCB
[12:11:25] <pcw_home> were doing a 48V 30A drive however (50A peak)
[12:12:02] <pcw_home> its smaller, and uses Fairchilds new dual-cool MOSFETS
[12:12:17] <L84Supper> they are using 24V 20A wheelchair motors and also some 36V 50A from something bigger, maybe a small forklift or electric dolly
[12:13:32] <Tom_itx> or treadmills
[12:14:16] <pcw_home> (this is a brushless drive but we will support brush as well)
[12:14:18] <pcw_home> We will make a higher current one but it gets ugly because
[12:14:20] <pcw_home> you need a daughtercard for the DSP once you get above 2Oz copper
[12:14:50] <L84Supper> 0.0015Ω@VGS=10.0V, is pretty good
[12:15:34] <pcw_home> I think the ones we are using are 2-3 mOhm 60V SO8 footprint
[12:16:04] <L84Supper> ok some are even 0.00099Ω@VGS=10.0V
[12:16:16] <pcw_home> (with a heatsink on top hence the dual cool package))
[12:17:43] <L84Supper> http://kellycontroller.com/24v-brushed-dc-seriespmsep-ex-controller-c-79_80.html found these units as well
[12:22:32] <pcw_home> Yeah at 24V capable MOSFETs are really good and cheap (and you dont have the DV/DT turn on issues like you do at higher voltages) so its good for battery power things but in general lower voltage motors are a pain wiring and connector wise
[12:23:58] <pcw_home> (and power supply wise, which is why you dont see 24V motors on CNC machines very often)
[12:27:56] <IchGuckLive> pcw_home: if i ebay search "Inductive Proximity Sensor Detection Switch PNP" it all sais NO not expected NC
[12:32:40] <andypugh> skorket: The runout might not be the whole story, perhaps the head moves too?
[12:33:00] <pcw_home> They are available, you can do it the other (NO) way as well
[12:33:59] <pcw_home> but 7I76 does need PNP = sourcing sensors unless you want to add an external pullup resistor
[12:34:15] <IchGuckLive> pcw_home: i ask the china man if he has also PNP NC
[12:36:00] <IchGuckLive> AY is it
[12:36:10] <IchGuckLive> LJ12A3-4-Z/AY
[12:36:56] <pcw_home> Its just my preference for limit switches (so a short to ground is a fault)
[12:37:23] <IchGuckLive> agree on that
[12:37:36] <IchGuckLive> it near double the cost
[12:38:16] <IchGuckLive> http://www.ebay.de/itm/10pcs-LJ12A3-4-Z-AY-Inductive-Proximity-Sensor-Detection-Switch-PNP-DC6-36V-/290671981254?pt=LH_DefaultDomain_0&hash=item43ad6672c6
[12:38:28] <pcw_home> you can use a NPN NO withh a stiff pullup
[12:39:09] <pcw_home> bbl winter garden planting time...
[12:39:16] <IchGuckLive> By
[13:14:02] <Loetmichel> sooo, 8 of 24 done... end of work for today. Materials empty. Have to go to the sheet metal former tomorrow and beg for some more ;-)
[13:20:57] <IchGuckLive> Loetmichel: Photo ?
[13:21:09] <Loetmichel> ?
[13:21:14] <Loetmichel> same as yesterday
[13:21:30] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=13555
[13:22:06] <Loetmichel> had the webcam running today... http://bambuser.com/v/3043905
[13:22:19] <IchGuckLive> nice paddern
[13:22:50] <Loetmichel> pattern?
[13:23:06] <Loetmichel> yes, more like a noodles sieve than a sheet of metal ;-)
[13:24:11] <IchGuckLive> Wenn das das finanzamt mitbekommt für den arbeitgeber zuhause arbeiten !
[13:24:27] <IchGuckLive> Bis morgen By
[13:30:56] <FinboySlick> archivist: Learned an important lesson today.
[13:31:13] <archivist> which is?
[13:31:39] <FinboySlick> All my measurements aren't worth diddly squat when the table isn't flat.
[13:32:03] <archivist> this is true
[13:32:05] <L84Supper> Loetmichel, any suggestions for the fastest B&W laser printer?
[13:32:11] <Loetmichel> no
[13:32:45] <Loetmichel> the fastes i had in my fingers was the HP cp2025, but thats a cheap model
[13:32:48] <FinboySlick> archivist: I thought I had at least that as a reliable reference on this machine but apparently nope...
[13:32:59] <Loetmichel> there ought to be better models out there
[13:33:32] <archivist> FinboySlick, how far out is it, do you have a good reference to try it against
[13:41:56] <andypugh> Having said that, a mlll should still make things flat even if the ways slope, as long as there is no taper between the ways and the top of the table.
[13:42:30] <FinboySlick> archivist, andypugh: You're both right though. Were it not for the logistics and timing, I'd have just brought it back.
[13:42:56] <andypugh> And if there is taper in the table, then a light skim with a fly cutter should fix it. Possibly bond on a sacrificial top plate (or strips)
[13:43:56] <archivist> his column axis is out too so that may produce a dished flat
[13:43:56] <FinboySlick> andypugh: I can't drive a flycutter with this spindle.
[13:44:05] <andypugh> The top-plate idea also works if the tool can't reach all of the table, and it generally can't.
[13:44:19] <FinboySlick> Top plate is what I'm planning on.
[13:44:42] <FinboySlick> I might try lapping the table when I build up the courage to take the whole thing appart.
[13:44:55] <archivist> surface plate and blue and hard work with a scraper
[13:45:23] <L84Supper> FinboySlick, how much taper does it appear to have?
[13:45:54] <andypugh> archivist: Not much help with no reference. And the reference is inside the linear guides
[13:45:58] <FinboySlick> L84Supper: I'm still at a loss on how to measure things reliably. I get different results everywhere so far.
[13:46:14] <archivist> andypugh, for making the surface flat
[13:46:41] <andypugh> If the surface isn't flat, then I would look at having it ground.
[13:47:47] <archivist> but it sounds like there are so many possible faults, correction should be done in the right order else it will be just made worse
[13:48:38] <L84Supper> FinboySlick, even though it's out of warranty have you tried discussing the issues with them?
[13:48:49] <archivist> FinboySlick, you tried a dti and moved the table, I though that test was ok
[13:49:01] <L84Supper> they might offer help anyway
[13:49:51] <L84Supper> if they don't be sure to let them know you'll pass on the poor support to everyone on the ML and cnc forums worldwide :)
[13:51:39] <L84Supper> I've gotten replacement parts by clearly explaining the problems to tech support
[13:52:54] <andypugh> FinboySlick: It's a challenge to measure and set up a machine (and it looks like a challenge that Syil failed)
[13:53:09] <andypugh> There are whole textbooks on the subject.
[13:53:34] <archivist> I have some of those books and can scan a few pages
[13:55:05] <archivist> FinboySlick, the book you want if you can find a cheap copy is Machine tool reconditioning and applications of hand scraping Edward F. Connelly Machine Tool Publications
[13:56:29] <archivist> for reference measurements Testing machine tools for the use of machine tool makers, users, inspectors and plant engineers G Schlesinger
[13:59:53] <FinboySlick> archivist: I hadn't tested the whole table with the dti. It's sort of banana-shaped. The middle is okay in X. What I plan to do to at least have something I can use is limit myself to my vise.
[13:59:53] * archivist just read Len Shelton's msg on the list re mach3 bugs :)
[14:01:02] <FinboySlick> I'll try to get things so that the vise is setup completely flat, then, with some luck, I'll be able to tweak the Z axis perpendicular to that.
[14:02:59] <archivist> FinboySlick, you can just use an add on plate and mill as large an area flat as you can with a small end mill, then get that flat (may be a saw tooth if spindle axis is tilted)
[14:03:54] <archivist> my first milling machine had a saw tooth on any flat I milled
[14:04:05] <FinboySlick> archivist: Oh cool, mine too! ;)
[14:04:16] <FinboySlick> Heh.
[14:05:10] <FinboySlick> Actually, that's probably not true. My little Sherline can probably be tweaked to perfection way more easily as this one.
[14:05:33] <r00t4rd3d> what you mean by sawtooth?
[14:06:01] <FinboySlick> r00t4rd3d: Milling a flat surface with a tilted spindle.
[14:06:05] <FinboySlick> (or trying to)
[14:06:10] <r00t4rd3d> oh
[14:06:56] * archivist out for a bit
[14:07:07] <r00t4rd3d> what kinda bit?
[14:07:45] <r00t4rd3d> :D
[14:08:08] <andypugh> ls
[14:08:16] <andypugh> wrong window
[14:08:19] <FinboySlick> no such file or directory
[14:10:34] <r00t4rd3d> anyone else watching the Talladega Nascar race?
[14:11:49] <FinboySlick> The implications of that question scare me.
[14:12:32] <FinboySlick> It would mean that some nascar fans have evolved enough brains to run linuxcnc.
[14:13:43] <L84Supper> even more scary when they say "you gotta a nas-car"
[14:14:47] <FinboySlick> Hehe. I'll stop picking on Nascar now though. I'm a fan of way stupider things.
[14:14:57] * FinboySlick really likes Ren and Stimpy.
[14:15:28] <L84Supper> john kricfalusi is great
[14:15:51] <FinboySlick> He's oringally from Quebec actually.
[14:15:53] <L84Supper> the first season or two were great
[14:16:19] <L84Supper> didn't they change producers around then?
[14:16:52] <FinboySlick> I think so.
[14:21:39] <mazafaka> Back to home for a dinner, it's midnight. Had to Reduce RPMs for d20 end mill bit (which used for rough passes) down to 140 for coolant to cool down the tool
[14:22:45] <L84Supper> FinboySlick, http://www.youtube.com/watch?v=eusMzC7Rx7M it's Log! :)
[14:23:40] <FinboySlick> L84Supper: I also like how powdered toast man tells the pope: "Quick man, cling tenaciously to my buttocks!" "Both of them?"
[14:27:09] <L84Supper> FinboySlick, one of my favorites
[16:03:39] <DJ9DJ> gn8
[16:03:59] <FinboySlick> I should have saved up and gotten a Datron M10 Pro ;)
[16:04:13] <FinboySlick> These appear to be straight out of the box.
[16:05:25] <syyl> oh yeah :D
[16:05:33] <syyl> we got a new m10pro at work :D
[16:05:52] <FinboySlick> syyl: How expensive was it?
[16:06:19] <syyl> you could get a small house for the money they paid..
[16:06:56] <FinboySlick> syyl: That's ambiguous since Freddy and Fanny went bust.
[16:06:57] <syyl> something a bit over 110k eur
[16:07:07] <FinboySlick> Hehe, okay.
[16:07:57] <syyl> but that machine is awesome :D
[16:08:08] <syyl> cnc router on steroids
[16:10:10] <andypugh> FinboySlick: The smaller Tormach is a little cheaper than the Syil.
[16:10:39] <syyl> i am a bit uncertain about the tormachs
[16:10:56] <syyl> the seem to be a bit like haas, only cheaper..
[16:16:05] <archivist> Im coming to the "use old industrial" as it is generally just built right rather than new machines
[16:16:32] * syyl hugs his deckel
[16:16:59] <archivist> may need the wear "taking out" though
[16:17:57] <syyl> btw, i got my little deckel now running with closed loop stepers in x and y
[16:18:06] <syyl> with glas scales
[16:19:27] <syyl> positioning is better than 1/100mm
[16:20:25] <archivist> I did get to see a deckel once in someones garage..does that count
[16:21:01] <syyl> of course
[16:22:01] <archivist> I dont think it will still be there as the owner said goodbye cruel world
[16:31:19] <andypugh> I know a chap with a Deckel. It's lovely
[16:31:31] <archivist> ex boss got himself a Thiel as we were closing down which meant the Adcock and Shipley followed me home
[16:32:01] <archivist> I have see that Deckels pics on his site
[16:32:01] <syyl> thiel is something like the mother of all deckel/mahos
[16:32:33] <archivist> it had surface rust when we went to see it http://www.collection.archivist.info/archive/DJCPD/PD/2009/2009_08_13_Thiele_Milling_Machine/
[16:33:57] <syyl> its a nice, big machine..
[16:34:37] <FinboySlick> Looks rigid too.
[16:35:09] <archivist> £800 iirc plus the transport to get it home
[16:35:41] <toastydeath> i'd buy it for that
[16:36:14] <FinboySlick> I need a place where I can put machines like this. My house is inadequate.
[16:37:25] <archivist> throw the car out of the garage!
[16:37:39] <FinboySlick> BTW, apologies to the whole channel for always bitchin' about my mill... I needed an outlet that actually understands.
[16:37:47] <FinboySlick> Heh, I don't even have a garage.
[16:37:56] <FinboySlick> Besides, this is Canada, I'd need a heated garage.
[16:39:08] <archivist> I have a 10x20ft garage 3 lathes a mill and the hobbing machine and some crap
[16:39:21] <FinboySlick> Anyway, I'll keep fixing my Syil 'till it works. As the experienced guys say: It's not the tools it's how you use 'em.
[16:41:50] <archivist> making something work can be fun and educational
[16:42:44] <FinboySlick> archivist: Well, I bought this thing for educational purposes. I sort of hoped I'd be learning the cnc milling bits though, not the fixing your mill bits. I guess the former is most important though.
[18:44:46] <r00t4rd3d> ping
[19:13:26] <ReadError> pong
[19:19:42] <r00t4rd3d> i think im gonna buy a tslot bit and make my own spoil boards
[19:20:00] <r00t4rd3d> http://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/pages/bt_keyhl.html
[19:23:07] <ReadError> you going to use a hand router to do it?
[19:23:10] <ReadError> or do it on the mill
[19:24:07] <r00t4rd3d> probably on the machine but just turn it on and push them through so I can get the entire length
[19:26:35] <ReadError> or make it in 2 pieces
[19:27:37] <r00t4rd3d> im going to but width not length wise
[19:28:46] <r00t4rd3d> gonna go start another panel for my latest paradise box...
[19:34:42] <jdh> Jim: know anything about a Haskel AG30?
[19:34:45] <jdh> <urk>
[19:35:14] <Jymmm> ?
[19:35:31] <andypugh> Sounds like a programming language. Does that make me a geek?
[19:35:51] <jdh> wrong channel, it isn't, you are.
[19:36:27] <Jymmm> Ok, who turns firearm parts?
[19:36:33] <jdh> your's as two L's
[19:37:12] <jdh> and an overabundance of 's
[19:40:39] <pcw_home> "wrong channel, it isn't, you are."
[19:40:41] <pcw_home> is this the Yoda channel?
[19:45:00] <Tecan> Rocket about to launch: http://new.livestream.com/accounts/142499/events/1579124/videos/4573601
[20:14:19] <djdelorie> is there any magic, other than G53, to use absolute coordinates in a gcode file (rather than the touch-off origin) ?
[20:15:38] <Tom_itx> G90
[20:16:14] <djdelorie> does that affect the origin, or just the interpretation of the coordinates?
[20:16:34] <djdelorie> what i want is to write some gcode that re-drills new table tops for the cnc machine itself, so the coordinates are always relative to the home switches
[20:16:47] <Tom_itx> i don't think it changes the origin, rather how it calculates the next move
[20:16:55] <Tom_itx> G91 is from the previous position
[20:17:04] <Tom_itx> G90 is absolute
[20:17:12] <djdelorie> not the kind of "absolute" I was thinking of
[20:17:30] <Tom_itx> k
[20:17:39] <tjb1> Thats amazing, youtube can detect a video is "shaky" and fix it
[20:17:49] <djdelorie> I think I want one of the G92 options, but it's not obvious which/how
[20:18:05] <Tom_itx> tjb1, it does a horrible job
[20:18:42] <Jymmm> djdelorie: Um, you just want to slap on a blank, bolt it down, and have a grid of holes drilled referenced off the homing switches?
[20:18:51] <djdelorie> Jymmm: yes
[20:19:00] <djdelorie> except the "bolt it down" holes are what I'm drilling
[20:19:22] <djdelorie> so they have to line up with the holes under the blank
[20:19:35] <Jymmm> make slots
[20:19:58] <Jymmm> then youhave a fudge factor
[20:20:03] <djdelorie> i also want to be able to mill the shims in the "under" so that the table will be as close to 'flat" when it's attached
[20:20:12] <djdelorie> it's a lot of holes
[20:20:22] <tjb1> Tom_itx: It didnt do too bad a job
[20:20:28] <Jymmm> I mean the mounting holes, make those slots
[20:20:28] <djdelorie> and I have this cnc machine I can use for it... ;-)
[20:21:08] <Jymmm> so do I, and those mounting holes are a pita =)
[20:21:45] <djdelorie> I still need to be able to mill the shims down flat anyway, adding "oh, and drill my holes for me" is trivial once I figure that step out ;-)
[20:22:04] <Jymmm> djdelorie: if you plan on making a lot of spoiler boards, I'd suggest making alignment jigs for the blank
[20:22:30] <Jymmm> that was the biggest time consumer I found
[20:22:46] <djdelorie> this isn't the spoiler board, this is the table top. When I'm milling through the wood, I put another board between them
[20:23:13] <djdelorie> when I take the top off, you can see all the mechanicals and electronics
[20:23:19] <Jymmm> Me too, one on top of the other so I dont have to make different things
[20:23:37] <Jymmm> ah, my guts are in a box elsewhere
[20:23:53] <djdelorie> i.e. the machine with the top's frame but without the top looks like this: http://www.delorie.com/photos/cnc/img_2525.html
[20:24:12] <tjb1> Here is the spiral program run on my table - http://www.youtube.com/watch?v=v4eNtVOPlAg
[20:24:47] <djdelorie> I want to glue some strips on top of those vertical boards, use the cnc to mill them to the same Z height and pre-drill starter holes for the screws, then drill holes and countersinks on the plywood top to match
[20:25:44] <djdelorie> tjb1: you can tell it uses steppers. "wheeoo wheeoo wheeoo" :-) That sound just doesn't happen elsewhere...
[20:25:52] <tjb1> Yep :)
[20:26:09] <djdelorie> servos don't make that sound either...
[20:26:33] <djdelorie> and I note you made a pen holder for your machine too :-)
[20:28:01] <tjb1> Ah yes, good old black tape
[20:28:17] <Jymmm> djdelorie: Just a thought... you might want to add some additional vertical bracing on your spindle mount http://www.delorie.com/photos/cnc/img_2537.html
[20:28:20] <djdelorie> I used gravity instead so I wouldn't break the pencil: http://www.delorie.com/photos/cnc/img_2597.html
[20:29:21] <tjb1> djdelorie: The part the sharpie is attached to is floating but it is a little sticky because I dont have all the screws for it
[20:30:09] <tjb1> and I didnt spend a lot of time making sure it was aligned when I put it back together
[20:32:01] <Jymmm> djdelorie: http://www.ebay.com/itm/VELOX-CNC-Router-Mount-Porter-Cable-892-690-Bosch-Dewalt-K2-CNC-Specs-/380471147205?pt=LH_DefaultDomain_0&hash=item5895d8fac5
[20:34:23] <djdelorie> Jymmm: no need, the holes fit so well the router itself acts as a support. Plus, the whole carriage has more slop in it than the router brackets
[20:34:46] <djdelorie> tjb1: gravity vs slop... works either way! :-)
[20:35:10] <Jymmm> djdelorie: IT's going to have the most force placed upon it as well.
[20:35:19] <tjb1> Well the tape didnt let it move up and down
[20:35:23] <djdelorie> Jymmm: I don't need to spend $83 on something i can make from scrap anyway
[20:36:42] <djdelorie> wood routing forces tend to be sideways, not up and down. I already have to limit my Z speed because the whole carriage rocks if I move it too fast. I.e. it twists around the Y axis
[20:36:56] <Jymmm> djdelorie: Don't get cocky with me young lady! If you start having dips/valleys at the initial plunge, suspect the mount.
[20:37:00] <djdelorie> but it's "good enough" for my purposes, especially since it's built out of plywood :-)
[20:37:28] <Jymmm> errr dips/peaks
[20:37:42] <djdelorie> Jymmm: I'm not female, nor young, and have lots of dips/peaks with the initial plunge. I have to limit Z speed because of that
[20:38:31] <djdelorie> my Z rails are pretty wimpy, too.
[20:38:56] <djdelorie> http://www.delorie.com/photos/cnc/img_2533.html
[20:39:11] <tjb1> What are your z rails?
[20:39:24] <djdelorie> some alumimum rod stock inside bits of copper pipe
[20:39:32] <tjb1> I see the problem
[20:39:34] <Jymmm> I saw what you have, and my only comment is on the spindle mount; I feel you can get away with everything else.
[20:39:44] <tjb1> Plywood :P
[20:40:06] <djdelorie> the whole machine is a hack made of scrap and surplus, so I could learn how to make it. I suspect it's primary purpose is to build a better cnc machine ;-)
[20:40:16] <tjb1> Can it work aluminum?
[20:40:23] <djdelorie> Jymmm: I understand, but in practice, the spindle mount is much more rigid than the Z rails
[20:40:37] <djdelorie> tjb1: I don't know. In theory, yes, but I don't have any aluminum to work with.
[20:40:50] <Jymmm> djdelorie: even under plunge force?
[20:40:53] <tjb1> You made your own drivers?
[20:41:13] <djdelorie> Jymmm: I don't plunge with this machine, most of my router bits don't work well plunging.
[20:41:15] <djdelorie> tlb1: Yes
[20:41:25] <Jymmm> djdelorie: ah, ok.
[20:41:36] <tjb1> Wish I was that smart :P
[20:41:53] <djdelorie> when I do drilling or pcb work, I use a different spindle anyway: http://www.delorie.com/photos/cnc/img_2605.html
[20:41:56] <Jymmm> djdelorie: I use CMT 1/4" spiral upcut and plunge without any issues fwiw
[20:42:34] <djdelorie> tjb1: the electonics was easy, I do embedded development stuff for a living. It's the CNC mechanics that were the big learning curve for me
[20:43:10] <djdelorie> I have some up and down spiral bits but I try to avoid pure plunging, and when I do, I just go slow
[20:43:21] <Jymmm> djdelorie: =)
[20:43:49] <djdelorie> the router bracket fits so perfectly around that, like I said, the router itself acts as a brace.
[20:44:05] <Jymmm> djdelorie: down works good if you are cutting small parts as the sawdust packs in the piece in and keeps it from moving around =)
[20:44:14] <tjb1> djdelorie: I find the designing easy and electronics a headache :)
[20:44:37] <djdelorie> Jymmm: and down avoids splintering around the edges, too.
[20:44:44] <r00t-Shed> i think its both easy :D
[20:45:10] <djdelorie> r00t-Shed: are you talking about hooking up electronics, or designing the circuits from scratch, though? ;-)
[20:45:37] <tjb1> r00t hasnt figured out how to make his wiring presentable though
[20:45:44] <tjb1> He has like 15 wires coming out of a box
[20:45:46] <djdelorie> me neither
[20:45:53] <Jymmm> djdelorie: Yeah, you're right. I think I do have down cut for that very purpose. Not upcut liek I previously mentioned (very tired and have a sick lil bird I looking after =(
[20:45:57] <djdelorie> http://www.delorie.com/photos/cnc/img_2563.html
[20:45:59] <r00t-Shed> hooking them up but I am also semi fluent in Eagle.
[20:46:08] <jdh> http://raleigh.craigslist.org/tls/3322129310.html
[20:46:25] <tjb1> Ah so far away jdh
[20:46:28] <r00t-Shed> i could solder a board together
[20:46:38] <jdh> tjb1: 90 miles for me.
[20:46:38] <djdelorie> jdh: tease!
[20:46:39] <tjb1> Whats sad is a 3d printer cost more than that...
[20:46:57] <jdh> new is $3k without the DRO
[20:47:03] <djdelorie> tjb1: a non-grizzly mill costs more than that too
[20:47:15] <tjb1> Yep
[20:48:06] * djdelorie got a used bridgeport recently, the *shipping* was $450, and it only had to more ten miles... but it had to be moved into my non-walk-in basement :-)
[20:48:32] <djdelorie> http://www.delorie.com/photos/bridgeport/img_2812.html
[20:48:50] <tjb1> What did that cost ya?
[20:49:06] <r00t-Shed> first born daughter
[20:49:16] <tjb1> The grizzly copies are ~6k
[20:50:17] <djdelorie> $2500 not including all the accessories I'll end up buying for it
[20:50:24] <tjb1> Not bad
[20:50:51] <jdh> http://www.auctionzip.com/Full-Image/1558749/fp23.cgi
[20:50:55] <djdelorie> I like it. It was a one-owner one-user (now two of course :) machine from the 80's
[20:50:58] <jdh> that's at an estate auction this weekend
[20:50:59] <tjb1> Too lazy to change belts I see :p
[20:51:06] <djdelorie> ?
[20:51:14] <L84Supper> anyone near Chicago looking for a vintage J head bridgeport?
[20:51:23] <tjb1> I see your VFD djdelorie
[20:51:34] <djdelorie> it was the cheapest way to get three phase power for it
[20:52:18] <djdelorie> and I'll re-use that control with the lathe once I find a 3ph motor for it, *then* I'll need the extra features
[20:52:21] <r00t-Shed> tjb1 always throughing out the "lazys" while his machine sits unfinshed
[20:52:29] <tjb1> Hey r00t
[20:52:31] <r00t-Shed> :P
[20:52:37] <tjb1> http://www.youtube.com/watch?v=v4eNtVOPlAg
[20:52:42] <tjb1> Yeah.
[20:52:56] <r00t-Shed> i dont want to do stuff while i cut
[20:53:03] <djdelorie> but mostly I have a friend who knows a *lot* more than I do about powering big equipment at home, and that's what he said to buy :-)
[20:53:21] <r00t-Shed> whats in the video?
[20:53:59] <tjb1> Well watch and see, thats why its a video
[20:54:20] <r00t-Shed> im cutting, dont want to risk lag or anything
[20:54:44] <Valen> if you size your computer properly there shouldn't be any lag
[20:54:55] <tjb1> You just got owned r00t ^
[20:55:32] <Valen> archivist used to compile mysql on his emc box while cutting gears
[20:55:48] <r00t-Shed> i can and do open stuff, sometimes i play games on a emulator but Im cutting a panel for a 75 paradise box in oak and im not risking shit
[20:55:57] <Valen> lol
[20:56:15] <Valen> wth is one of those anyway
[20:56:16] <tjb1> Valen, tell him the video is worth it
[20:56:27] <Valen> eh it draws a spiral
[20:56:29] <Valen> yay
[20:56:32] <tjb1> Valen: http://www.vectric.com/WebSite/Vectric/projects/march-2011/paradise-box.htm
[20:56:33] <r00t-Shed> i watch when i go back inside
[20:56:40] <tjb1> Just owned you that time r00t.
[20:56:49] <r00t-Shed> wrong computer
[20:57:00] <Valen> pretty fancy
[20:57:03] <r00t-Shed> ive never visted that link out here
[20:57:10] <Valen> where did you get the artwork?
[20:57:14] <Valen> oh comes with it
[20:57:20] <r00t-Shed> ive changed all that
[20:57:51] <r00t-Shed> i have a pic inside ill show you later if you still around
[20:58:21] <r00t-Shed> the one im doing now is gonna have fish on the top :D
[20:58:24] <tjb1> Valen: Its my adult spirograph
[20:58:24] <r00t-Shed> jumping bass
[20:58:40] <Valen> if your going to do it http://www.youtube.com/watch?v=Nn1bJ3YAQdI is a good video
[20:58:57] <Valen> I want to do some brass inlay stuff
[20:59:17] <Valen> I have a client who wants some manacles made, and I'm tossing up the best way to do it
[20:59:20] <Valen> must be epic
[20:59:43] <tjb1> Thats sweet Valen
[20:59:46] <Valen> stainless with brass inlay, just solid brass and "paradise box" it and polish the whole thing
[21:00:02] <Valen> tjb1: I wish i had a machine that accurate lol
[21:00:12] <tjb1> I wish I had an indicator that accurate
[21:00:13] <tjb1> lol
[21:00:22] <tjb1> Mine moves without touching it...
[21:00:26] <Valen> about 4 minutes in they change the camera angle
[21:00:37] <Valen> gives you a sense of scale lol
[21:01:13] <Valen> the spindle motor is bigger than my friends lathe/mill combo
[21:01:15] <tjb1> Hey r00t-Shed, instead of playing with wood…why dont you make your aluminum sides?
[21:01:23] <r00t-Shed> id rather make money
[21:01:33] <Valen> what do they sell for r00t?
[21:01:52] <r00t-Shed> i can sell them all day for 75 to just friends
[21:02:31] <r00t-Shed> i imagine i could get like 100-125 for them with brass handles
[21:02:37] <Valen> what cutter do you use? also how much finishing is involved?
[21:02:54] <r00t-Shed> vbit and endmill , not long
[21:03:01] <r00t-Shed> light sanding
[21:03:06] <Valen> my dad sells wooden things to some galleries down here (australia) always looking for something else to add
[21:03:44] <r00t-Shed> in carveones thread on cnczone he has done some amazing pboxes
[21:04:44] <tjb1> r00t-Shed: I want you to make the wooden ballscrews
[21:04:56] <tjb1> Im sure you have seen that thread
[21:06:30] <r00t-Shed> ya
[21:07:07] <tjb1> Where is the "Home All" button at?
[21:07:18] <tjb1> Or do I need to add a homing sequence for multiple axes before it shows up?
[21:08:24] <djdelorie> on mine, it's just left of the "touch off" button
[21:09:06] <tjb1> Home All?
[21:09:19] <tjb1> Mine has tick boxes for X, Y, Z and then a Home button but it only homes whatever one is ticked
[21:09:26] <djdelorie> 2.5 ?
[21:09:34] <tjb1> I believe
[21:09:47] <djdelorie> mine has home all, but touch off only does the ticked XYZ axis
[21:10:45] <Tom_itx> tjb1 add a home all button
[21:11:01] <Tom_itx> be aware you should do z first in the sub then x and y
[21:11:03] <tjb1> Ha yeah right Tom_itx I am about as good at coding as I am breating underwater
[21:11:13] <Tom_itx> not hard
[21:11:27] <tjb1> *breathing…and they share an input so I will set Z as 0 in the homing sequence
[21:12:49] <Tom_itx> wanna try?
[21:13:04] <tjb1> I wont be back at the machine until thursday but I have all the files with me
[21:13:14] <tjb1> I should install linuxcnc on my laptop
[21:15:00] <Tom_itx> do you have a display.xml file?
[21:15:35] <djdelorie> I think I want G10 L2 P2 X0 Y0 G55, and leave Z where it was touched off...
[21:24:54] <djdelorie> If I use F on the same line as a G1, does it affect only that G1, or all future ones?
[21:26:39] <atom1> should affect the line it's on
[21:26:49] <atom1> and future ones
[21:26:56] <atom1> until changed
[21:27:03] <atom1> (modal)
[21:27:30] <djdelorie> "He flew away before I could thank him!"
[21:27:38] <Tom_itx> no i'm still here
[21:27:42] <Tom_itx> different pc
[21:28:40] <djdelorie> ah. it's a small program, I'll just put F on every move (it's being generated, so doesn't take *me* any more time :)
[21:28:52] <Tom_itx> no need to
[21:29:05] <Tom_itx> i put it at a tool change or change it at a ramp move etc
[21:29:15] <Tom_itx> then back to the desired feed
[21:29:31] <Tom_itx> 1/2 feed on a ramp then back to normal
[21:30:14] <djdelorie> I've wrapped the XY and Z moves in functions, they can put an F on everything without my doing it. I just wanted different speeds for Z vs XY
[21:31:47] <djdelorie> would have been handy if I could have one F at the beginning for XY, and just override the Z, but if it doesn't work that way...
[21:33:11] <Tom_itx> it won't hurt but is redundant
[21:37:19] <Tom_itx> also, some cnc's require x y z specified every line whether they change or not but most only require the changed axis specified
[21:37:53] <Tom_itx> just makes the file bigger
[21:38:59] <djdelorie> this is just for my linuxcnc machine :-)
[21:52:40] <Tom_itx> i modded a post for my cad cam for it
[21:57:11] <Valen> Our cam lets you set feed rates for all those actions indipendantly
[21:57:21] <Valen> lead in/out etc
[22:05:32] <r00t4rd3d> http://imgur.com/a/qt3ED
[22:05:41] <r00t4rd3d> 3 parts done and stained
[22:06:03] <Valen> whats the milling time like?
[22:06:40] <r00t4rd3d> hour for the detailed panel
[22:06:50] <r00t4rd3d> 30min for the sides
[22:06:59] <r00t4rd3d> my machine maxes out at 18ipm
[22:07:04] <r00t4rd3d> lol
[22:07:27] <Valen> thats not terrible for timber
[22:07:32] <Valen> if your acceleration is high
[22:07:53] <r00t4rd3d> im normally high but not so much my acceleration.
[22:08:51] <Valen> I'd love to make stuff like this http://www.rubylane.com/item/598821-L1709/Erhard-Sohne-Brass-Burl-Wood
[22:08:54] <Valen> but for now lunch
[22:09:45] <r00t4rd3d> a treasure chest lunch pale
[22:09:48] <r00t4rd3d> thats a good idea
[22:15:23] <r00t4rd3d> http://www.thomasathomas.com/make_a_chest.htm
[22:23:37] <r00t4rd3d> Valen, this is the last one I did in pine: http://imgur.com/OKWwV
[22:25:33] <r00t4rd3d> I am only going to use oak from now on though
[22:26:18] <r00t4rd3d> i dont like how pine takes stain
[22:29:50] <tjb1> Sorry Tom_itx what about a display.xml
[22:30:16] <Tom_itx> it's where you add the button code
[22:30:27] <Tom_itx> to call the subroutine that actually does the home
[22:32:37] <tjb1> No XML files in the folder I copied
[22:33:39] <Tom_itx> i'm gonna sleep but i'll show you mine later
[22:34:26] <Tom_itx> courtesy of JT-Shop
[22:34:51] <tjb1> Ill try to get linuxcnc on my laptop tomorrow if I have time
[22:35:03] <tjb1> So I am not so useless when I am at school
[22:58:00] <r00t4rd3d> lol
[23:06:39] <tjb1> You see teh video r00t4rd3d
[23:14:28] <r00t4rd3d> nah
[23:14:44] <r00t4rd3d> http://www.youtube.com/watch?v=O05javlMW6k&feature=player_detailpage#t=81s
[23:17:23] <tjb1> Good way to get rid of them
[23:19:05] <tjb1> r00t4rd3d: http://www.youtube.com/watch?v=v4eNtVOPlAg
[23:23:50] <r00t4rd3d> cool
[23:25:44] <tjb1> I have to remake Z plate again...
[23:53:33] <skorket> I'm hoping you guys can help me figure out what's going on and how to fix it. I'm trying to route some PCBs on my CNC. I've tried a small (what I think is) .2mm wide carbide bit. I've successfully made a trace with a 20mil pitch, but the problem is that the line walks all over the place. In one run, I had the bit break, even though I was going at 100mm/minute.
[23:54:02] <skorket> When I try to use a 25 or 30 deg angled bit, I get a much steadier trace, but the width shoots up to upwards of 10mil or more
[23:54:47] <skorket> first off, does anyone have suggestions on how to stop the 'walking' of the carbide bit? And does anyone have an explanation of why the angled bits have such high routed widths?
[23:55:30] <Valen> what RPM?
[23:55:40] <Valen> also what spindle
[23:56:08] <Valen> thickness variations with a V bit are due to something going up and down
[23:56:15] <Valen> PCB's arent flat at all
[23:56:25] <Valen> so they will wobble up and down as you go across them
[23:56:38] <Valen> We put a vacuume box under it to hold it down flat
[23:57:16] <skorket> Valen, I believe 8,000 RPM. link here: http://zentoolworks.com/product_info.php?cPath=16&products_id=135
[23:57:32] <skorket> I've used a height probe to (hopefully) get the height down to a mill or two
[23:57:55] <Valen> heh that looks like a bog standard DC motor with a collet stuck onto it
[23:58:22] <Valen> anyway
[23:58:24] <skorket> I've gone 2 mils lower than the sensed height. I use a continuity test to test for height, which means I'm physcially touching the PCB with the bit, which might affect the height of the PCB, especially if the bit is thich and sturdy
[23:58:48] <Valen> if the trace varies in width then the tool is going up and down relative to the copper
[23:58:54] <skorket> and in this particular test I'm only going up 3mm, over 0.5 mm, the down and back
[23:59:18] <Valen> how are you holding the pcb down?
[23:59:23] <skorket> I understand. I've made some programs that take a height map and alter the gcode accordingly
[23:59:37] <skorket> but for such small distances, it shouldn't matter too much (I hope)