#linuxcnc | Logs for 2014-03-23

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[00:00:46] <andypugh> Coolant is a big thing there. The chips float away rather than welding to the cutter
[00:02:03] <andypugh> eeeep! 0445? I need to sleep if i am going to do machining tomorrow
[00:02:34] <CaptHindsight> http://www.ebay.com/itm/121300228160 CNC LATHE TRAUB TND 360 US $3,000.00
[00:03:19] <CaptHindsight> http://www.ebay.com/itm/301129431826 Okuma & Howa CNC Lathe US $3,000.00
[00:06:26] <XXCoder1> not surpised local pickup only lol
[00:09:24] <CaptHindsight> http://www.ebay.com/itm/VMC-BRIDGEPORT-MODEL-308-CNC-8-POSITION-ATC-/161233114746?pt=US_Heavy_Equipment&hash=item258a3e167a
[00:09:57] <CaptHindsight> http://www.ebay.com/itm/OKUMA-MODEL-6V-VERTICAL-CNC-MACHINING-CENTER-WITH-OSP-5000M-CONTROL-/141230705820?pt=US_Heavy_Equipment&hash=item20e2018c9c
[00:14:09] <XXCoder1> how thick would cnc router bed be to be rigid enough?
[00:15:03] <XXCoder1> because my "looks like fish" (lol) rough idea design are only supported by ends of X axis. gantry would be on rails so not weighting bed down.
[00:15:57] <CaptHindsight> 1" tool steel, ground
[00:16:12] <CaptHindsight> what size router?
[00:16:27] <XXCoder1> assume wood bed, roughly 2' by 3'
[00:16:57] <CaptHindsight> how thick should the wood be?
[00:17:15] <XXCoder1> yeah, I see wood cnc plans but it dont say
[00:17:54] <XXCoder1> I'm not looking for mill steel strength
[00:18:16] <XXCoder1> well thats new to me lol http://makezineblog.files.wordpress.com/2010/01/collapsible_cnc_machine.jpg?w=560
[00:19:36] <XXCoder1> guess i'll have to ponder more later. night
[00:21:00] <CaptHindsight> XXCoder1: http://www.ebay.com/itm/Vacuum-Table-VT-D250-23-x-39-/281289260547?pt=BI_Tool_Work_Holding&hash=item417e257e03
[00:21:32] <XXCoder1> definitely interesting and cool, just not something I need atm :D
[00:22:21] <CaptHindsight> use that for your bed
[00:22:31] <CaptHindsight> http://www.ebay.com/itm/Orbotech-Vacuum-Table-31-1-4-x-25-3-4-Table-Area-12-x-23-1-2-Vacuum-Area-/331146149303?pt=BI_Tool_Work_Holding&hash=item4d19d93db7
[00:22:33] <XXCoder1> nah too much money. well night
[00:22:46] <CaptHindsight> $200 used
[00:23:40] <tjtr33> uses a pad between work and vacuum table, so you cut into the pad, and not into the table when cutting 'thru' parts.
[00:24:09] <CaptHindsight> you're not trying hard enough :)
[00:24:35] <tjtr33> looks like ceramic, but at 200$ its something else
[00:25:13] <tjtr33> we used to make vacuum plates out of graphite, but we were machining graphite and had loads of it
[00:25:16] <CaptHindsight> tempted to get it, I get lots from D&S in Minn
[00:27:03] <tjtr33> did you see the t-slotted welding tables at bottom of that page?
[00:27:53] <CaptHindsight> which page?
[00:28:08] <tjtr33> scroll up to your last url posted
[00:28:27] <tjtr33> Orbotech-Vacuum-Table
[00:28:38] <CaptHindsight> ebay must add that dynamically, I just get tool holders
[00:29:05] <tjtr33> well search that , maybe the cheap tslotted tables you been thinkin bout
[00:30:05] <tjtr33> "t-slotted welding table"
[00:31:49] <CaptHindsight> it would make the most sense for DIY machine bases, but I don't anyone will buy them since they are different
[00:32:21] <CaptHindsight> ground and square
[00:32:34] <CaptHindsight> just add bearings and ballscrews
[00:34:15] <tjtr33> if you use that search item and get the google image page, theres loads of mfctrs.
[00:36:50] <CaptHindsight> I'm staying out of the DIY supply business
[00:39:50] <tjtr33> :)
[00:42:12] <tjtr33> nice book: Getting Started with BeagleBone: Linux Powered Electronics Projects with Python and Javascript by Matt Richardson
[00:43:07] <tjtr33> now reading Chapter 5: Python pin control
[03:10:50] <Deejay> moin
[05:22:30] <mcfloppy> do someone in here build a tangetial cutter/knife?
[05:22:36] <mcfloppy> oscilating :)
[06:56:47] <skroon> hi all
[07:49:05] <R2E4> mornin
[09:52:01] <PetefromTn_> Morning folks..
[10:07:05] <JT-Shop> whatup PetefromTn_
[10:09:05] <Tom_itx> chilly morning here
[10:11:28] <JT-Shop> here too
[10:26:25] <R2E4> mornin
[10:27:42] <R2E4> I have a theoretical question.
[10:29:01] <R2E4> IF you have two relays with one enrgizing the second relay, would there be a detectable delay from whenthe first one energizes and the second one?
[10:29:59] <archivist> relays take time, ms
[10:30:04] <pcw_home> sure maybe 20 ms or so for small relays
[10:30:29] <pcw_home> reed relays are the fastest I think
[10:31:15] <R2E4> plus the time a solenoid energizes, could be enough time the axis moves before brake is applied.
[10:31:48] <skunkworks> I would not thing inches though...
[10:32:47] <R2E4> I'm debating wether I should run the power to the brake solenoid through the servo drive ready contacts or use a relay.
[10:33:21] <R2E4> I dont have the contact rating of the ready signal contacts though.
[10:33:58] <pcw_home> I would be careful with the brake wiring since there's so much energy stored in the brake coil
[10:34:50] <pcw_home> even with a suppresor its going to be all kinds of nasty when you engage the brake
[10:35:09] <pcw_home> (disconnect the 90VDC)
[10:36:48] <R2E4> Thats why I was asking for the time it takes for the relay to energize. I have the 90v going through a big relay that is being energized with 24vdc. I can run the drive ready contacts in series with the 24v enrgizing the brake relay.
[10:37:28] <R2E4> But that would innduce a delay(time it takes for the relay to energize).
[10:38:25] <pcw_home> I cant imagine that 20 or so ms makes that much difference
[10:38:50] <pcw_home> how long does it take the brake to engage?
[10:39:52] <R2E4> Less than a second
[10:41:41] <pcw_home> if its more than 1/10 of a second, worrying about relay delays is probably not useful
[10:42:18] <pcw_home> since the main delay for applying the brake is in the brake itself
[10:42:23] <R2E4> I think I have two choices. 1. In HAL inject a delay when I turn machine off to give the brake time to engage. 2. interrupt the ENA from 7i77 and inject a delay to give brake time to engage.
[10:43:55] <R2E4> Can I assume there is no built in delay parameter in the 7i77 firmware?
[10:43:59] <pcw_home> It still seem wrong the the brake has any noticeable delay to engage
[10:45:00] <pcw_home> 7i77 outputs are actuated ~ 50 usec after the command
[10:45:22] <PetefromTn_> sorry guys Mornin JT and R2E4 and everyone...
[10:46:34] <R2E4> IS that coinfigurable per axis? Have to ask, but I think I know the answer.
[10:48:35] <pcw_home> the delay (thats just the communication delay/processing time not anything you can change)
[10:48:48] <R2E4> I've never seen this machine run with the old control but I think I am safe to say it didn't do what its doing now. Like you said either the solenoid is bad or the old control handled the delay because one of the contact that engaged the brake was from the old control.
[10:50:07] <R2E4> So if you would have hit emergency stop or shut of the control the old control could have induced the delay giving the brake time to engage then disable the drive.
[10:50:55] <pcw_home> So I guess you could provide some overlap by disabling the drives a bit later but this is not very safe
[10:51:47] <pcw_home> (you want to disable immediately on a ferror but perhaps with a delay at shutdown)
[10:53:02] <pcw_home> do you have the motor specifications? it may list the brake engage/disengage times
[10:53:15] <R2E4> yeah, let me look
[10:53:29] <XXCoder1> if motor does have this delay, womder if upgradable
[10:56:43] <R2E4> IT doesnt give engage/disengage times.Just says it is a Spring engaged, electromagnetic type and frictiuon torque.
[10:57:38] <R2E4> exciting voltage 90vdc +-10% at .3A
[11:00:30] <PetefromTn_> Setting up here finally to machine the part I screwed up last time LOL... Snapped a 3/8 carbide endmill like a twiggy!!
[11:01:18] <pcw_home> how heavy is the Z axis?
[11:01:43] <pcw_home> Just wondering how fast it accelerates in free fall
[11:02:05] <ChuangTzu> wait
[11:02:16] <ChuangTzu> the mass of the z axis doesn't affect it's free fall speed
[11:02:19] <ChuangTzu> :S
[11:02:24] <skroon> hey all
[11:02:28] <ChuangTzu> hey skroon
[11:02:49] <skroon> anyone of you use cambam?
[11:02:51] <pcw_home> It does
[11:03:29] <pcw_home> because the large part of the inertia is in the ballscrew/motor
[11:04:01] <R2E4> I'll video it.
[11:04:33] <ChuangTzu> i guess i wouldn't consider that a free fall then, but i see what you're saying
[11:05:03] <pcw_home> Halscope Z position would be better
[11:05:40] <pcw_home> By free fall I meant with servo/brake disengaged
[11:07:23] <PetefromTn_> I am still considering that CHNC lathe I found locally but I gotta sell my Manual 12x36 lathe to get it and I am not sure I can live without a lathe until I can get the new one working if at all...Sucks to be poor LOL
[11:07:25] <pcw_home> halscope Z, Z FB velocity triggered by machine off
[11:08:44] <jdh> I'll give you $200 and a 7x10 for your manual 12x36
[11:08:58] <PetefromTn_> Bah Hah ha hahahahaa
[11:09:31] <PetefromTn_> make it $2k and you can keep the 7x10 LOL
[11:09:50] <R2E4> z-pos-fb ?
[11:10:28] <pcw_home> sure and z encoder velocity
[11:10:56] <PetefromTn_> I actually have a couple guys interested in it already locally here just gotta decide what I want to do about it. Plus I gotta find a way to get the new machine over here too..
[11:15:12] <R2E4> Cant get it to trigger in the halscope
[11:15:29] <jdh> if you buy the chnc, you will never move to florida.
[11:16:29] <pcw_home> do you have the trigger source selected?
[11:18:59] <PetefromTn_> why do you say that?
[11:23:42] <jdh> too much to move.
[11:25:35] <PetefromTn_> Naah I would move it. I have moved lots of stuff before myself and we are planning to pay a rigger to do it this time anyways.
[11:26:34] <pcw_home> set run mode to normal
[11:26:35] <pcw_home> add traces of z fb pos and z enc velocity and motion.motion-enabled
[11:26:37] <pcw_home> set trigger source to motion.motion-enabled
[11:26:59] <pcw_home> and falling edge trigger
[11:30:57] <JT-Shop> It's alive! http://www.gnipsel.com/images/splitter/First%20Pile%20of%20Splits.jpg
[11:35:03] <R2E4> http://imagebin.org/301192
[11:35:49] <kengu> JT-Shop: pile there is. the machine is a bit dark?
[11:36:25] <JT-Shop> hiding it from the U2's
[11:36:30] <R2E4> http://imagebin.org/301193
[11:37:54] <R2E4> pcw_home: theres the Z-pos-fb and Z-vel-fb
[11:38:28] <pcw_home> OK so now you can see that its about 200 ms fall
[11:39:46] <JT-Shop> kengu, more photos here http://www.gnipsel.com/images/splitter/
[11:40:33] <PetefromTn_> JT-Shop Looking good man. Some nice heating wood there. Still not done with the cold I am afraid.
[11:40:47] <pcw_home> (you can plot all three signals together: add motion.motion-enable for a good trigger source and an exact time when linuxcnc shuts down)
[11:41:35] <zeeshan> PetefromTn_: for a second i thought you said n not rigger
[11:41:36] <zeeshan> lol
[11:41:58] <zeeshan> when areyou moving to florida?
[11:42:19] <kengu> it does look nice
[11:42:44] <PetefromTn_> Naah I would not say that kinda thing man. I guess we move when someone buys our house LOL...
[11:42:54] <zeeshan> jdh: i got lucky with my 12x36
[11:43:05] <zeeshan> i found it for 700$ even though its 3600$ new from busybee tools
[11:43:13] <jdh> that's pretty lucky
[11:43:24] <jdh> not much chance of that here.
[11:43:27] <zeeshan> the only thing wrong with it was the contactor was bad on it and this person didn't know how to fix that
[11:43:41] <zeeshan> they were given the lathe by their cousin who went to a bigger lathe
[11:43:55] <zeeshan> im sure you can find it
[11:44:05] <PetefromTn_> I got mine for quite a bit less than they sell them for as well. I would rather not say how much hehehe
[11:44:26] <zeeshan> http://www.clausing-industrial.com/productCatalogs/L/Standard%20Large%20Swing%20Lathe.pdf
[11:44:29] <zeeshan> thats what i've been using at school
[11:44:35] <zeeshan> 24" swing
[11:44:39] <zeeshan> its bad ass
[11:45:33] <zeeshan> maybe its not 24" swing
[11:45:36] <zeeshan> i guess its bigger
[11:45:45] <zeeshan> all i know its a lot sturdier than my machine
[11:46:57] <R2E4> HEres all three plotted. http://imagebin.org/301196
[11:47:40] <pcw_home> R2E4: can you find the suppressor across the brake? if someone got clever and installed a
[11:47:41] <pcw_home> flyback diode there that would account for slow brake engage time
[11:48:56] <XXCoder1> why would someone slow down brake?
[11:49:26] <R2E4> The snubber is in the control panel across the wires leaving the control panel headed to the motor. IF they did, it might be in the motor.
[11:52:13] <R2E4> no diode visable.
[11:52:45] <pcw_home> OK so maybe the brake is just slow mechanically
[11:53:19] <XXCoder1> what form does brake come in? if its something physical it might simply be dirty or something
[11:53:29] <Tom_itx> 1/5 sec seems like quite a bit
[11:53:34] <R2E4> Thatr makes snese. I can her it engage, with a loud so;id click.
[11:54:15] <pcw_home> maybe the suppressor is bad
[11:54:43] <zeeshan> http://www.normanmachinetool.com/products/12_14_10_CLAUSING%20COLCHESTER%20LATHE_3.jpg
[11:54:50] <zeeshan> thats similar to the one at school but the bed is double the length
[11:54:54] <R2E4> its dropping the voltage
[11:55:00] <zeeshan> i wonder how much it is
[11:55:56] <zeeshan> holy cow
[11:55:59] <R2E4> I can replace it with one I made or an existing one in the machine.
[11:56:01] <zeeshan> http://www.ebay.com/itm/New-Clausing-Colchester-8043-15x50-Gap-Bed-Lathe-With-Acu-Rite-DRO-/330607776169
[11:56:21] <pcw_home> do you have one with the same PN?
[11:56:52] <R2E4> yes, I can take it off another device inthe machine
[11:58:08] <pcw_home> seems like the standard little relay suppressors would explode with 300 mA and the say 1 Henry brake inductance
[11:59:22] <R2E4> I could take one off the dynamic braking contactors. It's not like the Z dynamic braking is doind anything anyway...lol
[12:00:08] <R2E4> it is .1uf and 200ohms snubbers their using
[12:04:06] <R2E4> I'll try and look in the machine logic. Theres a 100 page manual for the logic of this machine.
[12:04:25] <R2E4> Its brutal!!
[12:05:16] <pcw_home> if the .1 cap is rated 1000V or more it may be OK
[12:05:44] <pcw_home> (just doing a rough peak voltage calc)
[12:08:02] <R2E4> 500vdc its marked
[12:09:05] <pcw_home> Well I am just guessing the brake inductance so could be wrong
[12:11:05] <R2E4> 100pages of ladder logic.....yuk!
[12:16:58] <TekniQue> yuk is right
[12:17:19] <TekniQue> ladder is disgusting for big projects
[12:17:53] <TekniQue> why can't these industrial logic controllers use a real logic description language like VHDL or Verilog
[12:18:11] <zeeshan> cause its not visual
[12:18:11] <TekniQue> or even just a functional language like C
[12:18:11] <zeeshan> :P
[12:18:46] <TekniQue> ladder is only visual when the whole design fits on one page
[12:19:07] <TekniQue> beyond that there's no way of visualising what the fuck that fucking shit is doing
[12:19:56] <zeeshan> going through someone elses code isnt any different ;p
[12:20:16] <zeeshan> just takes as much effort i'd say
[12:20:30] <TekniQue> except code can sometimes have comments
[12:20:39] <TekniQue> and variables that have descriptive names
[12:20:48] <zeeshan> so can ladder lagic ;p
[12:20:49] <zeeshan> logic
[12:21:32] <TekniQue> yeah but it rarely ever does
[12:22:07] <R2E4> On the end of each rung is a description, and each contact has a page# andrung number. Doesnt make it any easier to read.
[12:22:26] <zeeshan> just gotta get used to it
[12:23:08] <R2E4> The end section has every output and each page it exists on.
[12:23:46] <R2E4> and I didnt see any timer for delaying the drive disable
[12:24:26] <TekniQue> implementing certain things like state machines in ladder becomes really ugly
[12:24:43] <rodfrey> Hey guys, wonder if anybody has seen anything like this when setting up a VFD...
[12:25:14] <rodfrey> when I try to turn it on, I get a "axis 1 limit error" in axis
[12:25:25] <rodfrey> sometimes axis 2, sometimes axis 0, sometimes more than one
[12:25:38] <rodfrey> none of the pins that are connected to the limit switches trigger
[12:25:44] <zeeshan> i took a fanuc 'advanced' ladder logic course for their i series controllers a long time ago
[12:25:47] <R2E4> 169 pages ladder logic and 100 page element list.
[12:26:04] <rodfrey> watching all the relevant signals in the hal configuration window.
[12:26:09] <zeeshan> i don't remember it being too bad
[12:26:13] <zeeshan> i do remember it being a pain to learn
[12:26:18] <rodfrey> nothing even flickers
[12:27:09] <rodfrey> sorry the error says "joint 1 on limit switch error".
[12:27:14] <rodfrey> but it's not. :(
[12:30:06] <kengu> rodfrey: i have had those appear when i try to run axis faster than settings allow
[12:30:29] <kengu> something like step timing requiring quicker steps than configured or possible
[12:31:10] <kengu> joint follow error is another one of those
[12:32:12] <skunkworks> rodfrey: if nothing is attached to the limit switch inputs - you may get noise - triggering the error
[12:33:15] <rodfrey> ok... maybe noise is triggering the limit switches that's possible
[12:33:24] <archivist> are the limits pulled up or down, do you need to invert the state
[12:33:35] <rodfrey> for speed, I don't think so... it's the spindle and I'm starting real slow
[12:34:00] <rodfrey> All the motion is working fine (it's trivial kinematics)... it's just getting the spindle going that's giving me problems
[12:34:08] <rodfrey> without the spindle I can home, run programs, etc.
[12:34:18] <rodfrey> limit switches work well even running into them full speed
[12:34:55] <R2E4> 17 contacts to lookup for z-Brake-Off
[12:35:34] <Einar> You should make sure you have a well grounded motor and VFD with screened cable from VFD to motor.
[12:36:15] <zeeshan> use modbus!
[12:36:15] <zeeshan> :p
[12:36:19] <archivist> vfd do create a lot of electrical noise, make sure you have the right grounding, filtering and screened cables
[12:36:39] <Einar> VFD's are really half tame longwave radio transmitters! ;-)
[12:37:02] <archivist> wide band transmitters :)
[12:37:40] <archivist> use lower value pullups on limit switches
[12:37:45] <rodfrey> Yeah, I'm leaning toward noise too
[12:38:44] <rodfrey> the limit switches are active low... bad practice I know but I didn't know how to make the inductive switches I had go active high. I should look into that I guess.
[12:39:15] <rodfrey> no resistors on the limit switches...they feed right into the 7i76. Is that a big error right there?
[12:39:35] <Einar> The original wiring in my Boxford had screened cables between VFD and motor. But the screen was not grounded! What were they thinking!?
[12:40:26] <zeeshan> i use armor cable for the wire between the vfd and motor
[12:40:33] <zeeshan> seems contain all the noise ;p
[12:40:54] <rodfrey> OK, it's definitely noise - thanks guys! I had spindle-on pin linked to the enable line for the VFD - I removed that and put 24v directly onto enable.
[12:41:10] <rodfrey> When I do, the inductive switch LEDs all start to flicker.
[12:41:12] <Einar> If you connect the screen to ground, yes. Otherwise the screen does not do any good.
[12:41:51] <zeeshan> well the armor cable grounds through the clamp type connector that secures the wire againt the enclosure
[12:43:08] <Einar> Clamp is fine. Actually the best. A pigtail is not good at higher frequencies.
[13:09:48] <PetefromTn_> Machine seems to be running GOOD!!! First side of part is nearly roughed out...
[13:09:51] <R2E4> The machine shuts the Z-Brake off directly with E-stop, in the machines logic.
[13:10:06] <pcw_home> rodfrey: the 7I76 inputs are active high so if you have NPN (pulldown) type proxes you need a stiff pullup fo each one
[13:10:18] <pcw_home> s/fo/for/
[13:15:09] <pcw_home> But a line filter on the VFD and perhaps common mode choke on the U/V/W wires
[13:15:11] <pcw_home> between the VFD and the spindle cable may be required
[13:15:13] <pcw_home> (VFDs put out 350V square waves with lots of nice HF currents flowing everywhere)
[13:17:16] <pcw_home> I just wanted to try a newer kernel that the 2.6.122 on my new Baytrail CPU
[13:18:04] <pcw_home> oops
[13:21:33] <IchGuckLive> hi all B)
[13:23:08] <IchGuckLive> oh dan is back from russia so heeks is in good shape !
[13:24:27] <CaptHindsight> is Heeks going closed source from now on?
[13:25:55] <IchGuckLive> i dont know he cfommended almost every vid i got on youtube and heeks net is ofline since yesterday
[13:26:28] <CaptHindsight> it's working now http://heeks.net/
[13:27:33] <CaptHindsight> https://sites.google.com/site/heekscad/help/heekscnc-1-0-free
[13:28:16] <CaptHindsight> it's only £10
[13:28:40] <IchGuckLive> we will ask him if he gots conline
[13:29:15] <CaptHindsight> I think he will do well at $100-150 for 3+ axis CAM
[13:29:23] <R2E4> thats a cam program?
[13:29:38] <CaptHindsight> he developed both CAD and CAM
[13:29:53] <CaptHindsight> 3D CAD and 3-axis CAM
[13:30:09] <IchGuckLive> he will stay open source as most of us uses the base system and got lots of upgreads
[13:30:12] <archivist> with help when it was on google code
[13:32:29] <IchGuckLive> if the tool generator is the only thing that has changed then its not the big event but he got some realy good fretuers he said he woudt implement
[13:34:03] <R2E4> what would you consider "Machine Lock"?
[13:36:07] <CaptHindsight> I'd pay him for support and new features if it works well
[13:38:13] <archivist> R2E4, a lock that stops anyone firing up the machine while you are inside
[13:38:42] <zeeshan> so i tested my venier calipers today
[13:39:09] <archivist> I blame zeeshan for making me search for tools today :)
[13:39:11] <zeeshan> using the starrett v blocks
[13:39:14] <zeeshan> archivist: haha
[13:39:17] <zeeshan> guys seriously
[13:39:20] <zeeshan> import tools are AWESOME
[13:39:28] <zeeshan> i tested both my mastercraft aka import venier calipers
[13:39:34] <PetefromTn_> http://imagebin.org/301215
[13:39:38] <zeeshan> they actually measure .1 .5 1" 4"
[13:39:40] <zeeshan> right on the dot.
[13:39:48] <zeeshan> both of them
[13:40:06] <archivist> zeeshan, fleabay toy I found 151244338174
[13:40:07] <zeeshan> i noticed the pressure you put on the thumb wheel is supposed to be relatively light. same as a micrometer
[13:40:08] <R2E4> PetefromTn_: Nice
[13:40:16] <PetefromTn_> ;)
[13:40:32] <zeeshan> very nice
[13:40:38] <PetefromTn_> http://imagebin.org/301216
[13:40:48] <zeeshan> thats made by accusize!
[13:40:51] <zeeshan> thats the place thats 1 hour from me
[13:41:07] <R2E4> What is it?
[13:41:12] <archivist> a level
[13:41:18] <PetefromTn_> sorry for the dark pics my machinist lamp is not working since we blew the bulb hooking it to the wrong power source while we were retrofitting.
[13:41:18] <zeeshan> i don;'t know if i would trust the chinese with making levels though
[13:41:25] <archivist> sensible price too
[13:41:49] <archivist> test in the shop as its near you
[13:42:10] <zeeshan> i'd have to drag a surface plate and feeler gauges
[13:42:20] <PetefromTn_> It is hopefully gonna be a beautiful and elegant scope rail with dovetails on both top and bottom when I get it finished.
[13:42:40] <zeeshan> 1 r8 holder i bought for my 'precision drill' chuck
[13:42:47] <zeeshan> had 0.002 runout
[13:43:11] <zeeshan> so i just swapped over to a 3/4" straight shank drill chuck
[13:48:16] <PetefromTn_> Man I suck at figuring champfer tool depth and offset...
[13:49:47] <zeeshan> why
[13:49:55] <PetefromTn_> IF I wanna use my 45 degree cutter and have the diameter of the cut match my 1/4 inch endmill I profiled the part with I need to go down .125 deep and then offset the width of the face of the champfer cut I want right?
[13:51:03] <PetefromTn_> THis is assuming I use a zero tool width for the tool in my cam program..
[13:51:22] <zeeshan> too much going on in one sentence
[13:51:22] <zeeshan> ;p
[13:51:59] <PetefromTn_> So I offset the depth to match the width of radius of the cut plus the extra .030 I want the face of the champfer to be I guess.
[13:52:33] <zeeshan> what size chamfer are you putting on the edge
[13:52:37] <sabotender> moo
[13:52:41] <zeeshan> .1x.1?
[13:52:49] <zeeshan> or .125x.125
[13:53:30] <PetefromTn_> I was thinking now actually I want like a .050 wide champfer face on the part.
[13:53:45] <zeeshan> so you gotta plug 0.050 deep
[13:53:51] <zeeshan> + tool radius
[13:53:54] <zeeshan> offset
[13:54:28] <R2E4> I would think it depends on andle the bit. Using a V-bit for the chamfer?
[13:54:33] <PetefromTn_> oh so you figure the depth not the width...
[13:54:39] <zeeshan> he said 45 degree tool
[13:54:41] <zeeshan> http://blog.supertoolinc.com/wp-content/uploads/2013/05/chamfer-cutter.jpg
[13:54:44] <zeeshan> youre using that right?
[13:54:47] <PetefromTn_> I know some people do one or the other.
[13:55:06] <zeeshan> well its easier just to plunge straight down
[13:55:10] <PetefromTn_> yeah 45 degree tool not like that but similar enough
[13:55:14] <zeeshan> cause im assuming you know your tool height
[13:55:52] <PetefromTn_> Tool is setup from tip in TLO and I program it for depth in the cam...
[13:56:15] <Tom_itx> maybe set it up for half it's diameter
[13:56:25] <PetefromTn_> but I have been figuring the toolpath offset to get the champfer I want probably easier to use the depth.
[13:57:06] <zeeshan> the cam programmers hated me for specifying 30 degree chamfers
[13:57:20] <zeeshan> cause its easier to program for a 45 degree =D
[13:57:23] <PetefromTn_> So if I want the tool to touch the edge barely I go .125 deep and .125 offset and that is the edge. Then if I want a champfer of .050 I just go that much deeper?
[13:57:36] <Tom_itx> i would think so
[13:58:05] <Tom_itx> but the tip is probably not a full point
[13:58:11] <zeeshan> pete
[13:58:20] <PetefromTn_> no it is not but it is close enough..
[13:58:27] <tjtr33> IchGuckLive, I bought the HeeksCNC 1.0, and installed on win8.1, works fine (had some early problems ). I will be looking thru all your videos, thx!
[13:58:43] <zeeshan> if your tool looks like mine then its a bit more complex
[13:58:45] <zeeshan> but if you got a tool like
[13:58:46] <Tom_itx> so the chamfer will be deeper than you expect
[13:59:00] <PetefromTn_> yeah but only very slightly...
[13:59:11] <zeeshan> https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcRC6tpCZ0KN3CQ4rTonWv43NY9MnspY5ysFYx3F7otmgOGiLgRh6g
[13:59:24] <PetefromTn_> there is no callout here to meet I am making this part custom for me so If it goes a touch deeper so be it...
[13:59:27] <zeeshan> all you just need to line up the center line of your tool
[13:59:34] <IchGuckLive> tjtr33: your welcom e
[13:59:40] <zeeshan> offset by 0.050 away from the part
[13:59:47] <zeeshan> and plung down 0.050
[13:59:55] <Tom_itx> you don't wanna chamfer with the tip
[14:00:05] <zeeshan> yes thats why you offset 0.050 away from part
[14:00:05] <Tom_itx> the surface speed will be off
[14:00:06] <tjtr33> people should know it also has solid cut simulation
[14:00:07] <PetefromTn_> actually no that won't cut anything..
[14:00:15] <Tom_itx> use the center of the cut
[14:00:24] <zeeshan> air cut it
[14:00:24] <Tom_itx> better surface speed there
[14:00:26] <zeeshan> :D
[14:01:05] <PetefromTn_> you need to offset .050, then plunge .050 and that will be the edge then you plunge another .050 to get the champfer you want right?
[14:01:09] <Tom_itx> and you could calculate it as if it were a .125 cutter
[14:01:36] <CaptHindsight> HeeksCNC 1.0 is Winders only. Is he dropping the Linux version?
[14:01:48] <PetefromTn_> I want to make the champfer match the profile I used with a .25 inch diameter cutter so the diameter of the cutter where the cut happens needs to be .250..
[14:02:15] <CaptHindsight> IchGuckLive: any idea if he's dropping Linux?
[14:02:17] <PetefromTn_> which means I need to offset .125 and plunge .125 plus whatever champfer depth I need.
[14:02:43] <XXCoder1> could anyone make heekscnc work? it crashes randomly here
[14:03:09] <tjtr33> CaptHindsight, theres no 1.0 on linux so far, and yes windows sucks.
[14:03:40] <Tom_itx> pete your cutter will match the profile no matter where it's set if it's offset the right amount
[14:03:44] <tjtr33> XXCoder1, worked fin for me thru the frech pump tutorial, and for Ich's pocketing tutor. gcode ran fine
[14:03:51] <XXCoder1> odd
[14:04:22] <XXCoder1> I added block then circle, it usually crashes by then. I was trying to make smiley face toolpath
[14:04:22] <tjtr33> XXCoder1, did the fre version run ok for you, did you have the machining& help menus?
[14:04:39] <XXCoder1> I use free version
[14:04:56] <zeeshan> pete you can make the offset .175" too
[14:05:02] <zeeshan> and plunge .125
[14:05:08] <zeeshan> and you'll still get the .125 chamfer you're after
[14:05:18] <zeeshan> cause its a 45 degree tool
[14:05:28] <CaptHindsight> tjtr33: any idea how well these work? http://www.alibaba.com/product-detail/DK7750BZ-cnc-wire-edm-controller-with_989106414.html?s=p
[14:05:33] <PetefromTn_> yeah I know but I kinda like using the depth because I think the guys in the shop do it that way and I need to get used to doing it that way.
[14:05:35] <zeeshan> as long as your tool is wide enough
[14:05:54] <zeeshan> PetefromTn_: yea but say your tool is worn out in that spot
[14:06:01] <tjtr33> XXCoder1, ok i dunno why he says try the free first, but apparently it wont run on all systems, and he wants to keep those people from going nuts
[14:06:02] <zeeshan> you could just offset it a bit more and use a fresh cutting edge
[14:06:11] <zeeshan> so i don't think its a standard thing
[14:06:32] <CaptHindsight> tjtr33: here's another http://www.alibaba.com/product-detail/CNC-wire-cutting-EDM-DK77-series_571789768.html
[14:07:15] <tjtr33> CaptHindsight, lemme find the controller/generator set ( and no i havent used one, what you show is lilley a reciprocating wedm using moly wire and crazy fast windlass )
[14:07:24] <IchGuckLive> CaptHindsight: sorry no as he gave his first living sign for month now today
[14:08:11] <tjtr33> CaptHindsight, http://dgctek.en.made-in-china.com/product/veBEDZFUGOkV/China-EDM-System-CNC-EDM-control-system-.html
[14:08:16] <PetefromTn_> yeah actually tool wear is the reason I want to get used to doing it that way because you can adjust your offsets at the control without having to redo the cam if you program the depth...
[14:08:23] <tjtr33> ^^ a full kit, just add machine tool
[14:09:11] <zeeshan> oh i see what you mean
[14:09:14] <tjtr33> CaptHindsight, but if you want a refurb lo cost wedm, lemmeno
[14:09:15] <PetefromTn_> They have a couple wire EDM machines at the shop where I am temporarily working
[14:09:15] <zeeshan> then you can just manually offset in the control
[14:09:32] <zeeshan> controller
[14:09:41] <PetefromTn_> and the big one automatically feeds the wire AND drills thru holes for you LOL..
[14:09:47] <PetefromTn_> zeeshan Yea exactly...
[14:10:12] <zeeshan> just program it to have a safe offset like 0.125
[14:10:19] <zeeshan> so you're not cutting at the nose of the chamfer tool :D
[14:10:51] <PetefromTn_> yup that is what I am trying to do here plus .125 offset makes the cutter diameter match the cutter I profiled with...
[14:10:54] <zeeshan> if it was me, i'd figure out where the center of the cutter is
[14:11:00] <zeeshan> and i'd offset it to that amount
[14:11:15] <zeeshan> that way you could at the controller + or - an offset amount to adjust the tool contact point
[14:11:28] <CaptHindsight> tjtr33: what is the price range for those?
[14:12:11] <tjtr33> CaptHindsight, dunno, you gotta ask them nice on an auspicious day ;)
[14:13:30] <tjtr33> CaptHindsight, oops, i sent you a 5 axis sink edm cnc and generator system, the same people make a wedm system too
[14:13:57] <CaptHindsight> i looked through their site
[14:14:29] <kengu> why is heeks now working on googlecode heeks and not the git one
[14:14:34] <zeeshan> someone donate me some starrett or brown and sharp v-blocks!
[14:14:34] <zeeshan> :D
[14:15:19] <tjtr33> see 'hitler does git'
[14:16:17] <archivist> my chinese v blocks are ok and my eclipse v blocks
[14:16:35] <zeeshan> archivist: i really want a matching set
[14:16:48] <zeeshan> so i can measure play on crankshafts on a surface plate
[14:17:01] <archivist> you need a small pair and a large pair
[14:17:04] <zeeshan> yes
[14:17:14] <zeeshan> i have a couple of decent 123 blocks
[14:17:26] <zeeshan> you can always raise em
[14:17:49] <archivist> or even a between centers bench
[14:17:50] <kengu> tjtr33: https://www.youtube.com/watch?v=CDeG4S-mJts
[14:18:13] <CaptHindsight> http://dgctek.company.weiku.com/
[14:18:23] <zeeshan> between centers bench is $$$
[14:18:26] <zeeshan> theyre like a 1000$
[14:18:27] <zeeshan> arent they
[14:18:27] <archivist> and for cranks the special toy, the web spring dti
[14:18:43] <archivist> not is free :)
[14:18:48] <archivist> is/if
[14:19:02] <archivist> came rusty need to restore
[14:19:37] <zeeshan> archivist: help me identify more tools
[14:19:44] <zeeshan> http://i.imgur.com/qk9B1sc.jpg
[14:19:46] <zeeshan> what is this
[14:19:52] <zeeshan> it says 'made in germany
[14:20:21] <archivist> I dont have one
[14:20:36] <zeeshan> hm
[14:20:38] <zeeshan> it says this:
[14:20:41] <zeeshan> http://www.google.ca/patents/US4472877
[14:20:46] <zeeshan> Tool for removing insulation from cables
[14:20:51] <zeeshan> so its a wire stripper i think.
[14:21:34] <tjtr33> kengu, i just watched it again, i laughed so hard theres tears
[14:21:37] <archivist> for amoured cable etc
[14:22:02] <CaptHindsight> jacketoffkeputz?
[14:22:04] <archivist> wont damage the cores
[14:22:32] <zeeshan> im gonna throw it in the wire tools section then
[14:22:35] <zeeshan> try it out later
[14:22:52] <archivist> use for coax cable too
[14:23:10] <zeeshan> heres some more
[14:23:17] <zeeshan> im pretty sure these might be nut splitters
[14:23:17] <zeeshan> http://i.imgur.com/YgxIgUF.jpg
[14:23:24] <zeeshan> top two tools
[14:23:43] <zeeshan> but it doesnt have a sharp pointy end
[14:23:46] <zeeshan> like a nut splitter does
[14:24:05] <archivist> no, lathe tool holder
[14:24:19] <zeeshan> which one are you look at
[14:24:21] <marmite_> so, cambam aint all to good for pcb it would seem
[14:24:58] <zeeshan> http://i.imgur.com/9Rv2iT3.jpg
[14:24:59] <_methods> i haven't found shit i can get a clean dxf out of from pcb software
[14:25:04] <zeeshan> i think those two black things
[14:25:04] <_methods> without a ton of work
[14:25:06] <zeeshan> the round and square
[14:25:17] <zeeshan> have something to do with that black tool from the previous pic that looks like a nut splitter
[14:25:34] <CaptHindsight> https://greenlee-media.precis5.com/9b523b0c92185f39a0da77a82c51b46a http://cpc.farnell.com/productimages/farnell/standard/TLAB063-40.jpg
[14:26:00] <zeeshan> CaptHindsight:
[14:26:02] <zeeshan> whatd you search for
[14:26:18] <CaptHindsight> cable stripper
[14:26:34] <zeeshan> rofl
[14:26:39] <zeeshan> im looking at a video of it right now.
[14:26:48] <zeeshan> http://www.youtube.com/watch?v=Qky2xM-5dEI
[14:26:50] <zeeshan> very cool tool
[14:27:23] <zeeshan> meant for bigger cable it seems
[14:27:30] <archivist> http://www.collection.archivist.info/archive/mirror/zeeshan/jack_and_holder.jpg
[14:27:54] <zeeshan> archivist: do you know what its called or how its used?
[14:27:54] <tjtr33> for people wanting to view dwg files on linux, varicad-viewer is free and ran well for me on 12.04 ( requires registration )
[14:28:28] <CaptHindsight> I used to use a box cutter. Worked on wires 2" thick
[14:28:37] <archivist> zeeshan, its part of the topslide on some types look at a southbend
[14:28:58] <zeeshan> AHH
[14:29:08] <zeeshan> it holds those old school type holders.
[14:29:28] <archivist> some have a rocking boat under the tool
[14:29:36] <marmite_> what do you guys use to isolate pcb files for milling?
[14:29:42] <zeeshan> yea i think this rocking type wedge is part of it
[14:29:50] <zeeshan> http://i.imgur.com/YgxIgUF.jpg
[14:29:51] <zeeshan> in this pic
[14:29:53] <archivist> or tapered washer
[14:30:01] <zeeshan> right next to the drill bit
[14:30:02] <zeeshan> to the right
[14:30:13] <zeeshan> theres this black half moon type of wedge
[14:30:26] <zeeshan> http://www.collection.archivist.info/archive/mirror/zeeshan/jack_and_holder.jpg
[14:30:28] <zeeshan> in this pic
[14:30:32] <PetefromTn_> Well somehow I screwed that up...LOL
[14:30:37] <zeeshan> you see the long rod underneath it?
[14:30:43] <zeeshan> do you know what that is?
[14:30:54] <zeeshan> im thinking its some sort of indicator accessory
[14:31:05] <zeeshan> the two ends of it spin freely
[14:31:29] <archivist> dunno at the moment
[14:31:45] <zeeshan> okay last two things !
[14:32:01] <zeeshan> http://i.imgur.com/E1hbx8a.jpg
[14:32:04] <zeeshan> home brew clamp? :D
[14:32:25] <zeeshan> last one: http://i.imgur.com/jSmzmeN.jpg
[14:32:31] <zeeshan> looks like some sort of drafting tool
[14:32:36] <zeeshan> http://i.imgur.com/EXtl9ft.jpg
[14:33:10] <IchGuckLive> im off by
[14:33:24] <archivist> slide rule
[14:33:40] <archivist> take it out its case for pics
[14:33:52] <zeeshan> this mount sound dumb
[14:34:02] <zeeshan> i wanted to ask first before trying to pull it out
[14:34:07] <zeeshan> cause only the middle ruller comes out freely
[14:34:07] <CaptHindsight> analog mechanical computer
[14:34:13] <zeeshan> the other ones seem to be REALLY stuck in the case
[14:34:28] <zeeshan> brb lemme force it out
[14:35:43] <tjtr33> CaptHindsight, i wrote Ms Wendy and asked for a price on 50amp set
[14:36:06] <PetefromTn_> Somehow I managed to get a .075" face when I wanted a .050 face champfer DOH!
[14:36:29] <Tom_itx> i warned about the tip depth
[14:36:52] <Tom_itx> not coming to a point...
[14:37:31] <archivist> zeeshan, home made jigs,fixtures/clamps are a normal extra in old tool boxes, you will make some sometime too
[14:37:38] <PetefromTn_> yeah I don't think that is the problem here I think I messed up on the computations as simple as they are LOL.. I went .175 deep and .125 offset and got a .75 champfer.. No biggie but I would like to know what went wrong so I can get it right next time..
[14:37:40] <zeeshan> archivist: yes
[14:37:55] <zeeshan> its kind of nice to know what they are used for
[14:38:00] <zeeshan> cause they could be quiet useful
[14:38:21] <zeeshan> he gave me a set of machinist clamps that he had to make for his 'final project' when he was back in school
[14:38:27] <zeeshan> they are very nicely made
[14:38:52] <zeeshan> i still havent seen an application where you use machinist clamps though :)
[14:39:03] <archivist> I use them often
[14:39:21] <zeeshan> for what? turning a tap? :D
[14:39:26] <zeeshan> http://www.cnccookbook.com/img/MillStuff/CNC/OneShot/P1010861.JPG
[14:39:40] <archivist> nearest adjustable spanner is one use for example
[14:39:55] <zeeshan> hehe
[14:40:11] <archivist> done tap wrench too
[14:40:26] <zeeshan> http://4.bp.blogspot.com/-CAOscHfZm40/TXV889sdIVI/AAAAAAAAA2Q/dxvDmQRqryI/s1600/14_Drilling.JPG
[14:40:30] <zeeshan> looks like a nice use for them
[14:40:31] <syyl--> there are about an zillon uses for machinist clamps
[14:40:40] <zeeshan> syyl--: i figure there are
[14:40:51] <zeeshan> but since i've never used them before, i've been using other tools in their application
[14:41:04] <archivist> and holding a balance weight on the mill http://www.collection.archivist.info/showresult.php?prog=1&srcprog=searchv13.php&srcdata=title&Type=PD&Accn_no=9251&subject=26585
[14:41:06] <zeeshan> ie c-clamps or bar clamp
[14:41:09] <syyl--> vice stop, clamping parts for drilling/reamin, bedstop for lathe...
[14:41:37] <syyl--> to throw at other people
[14:41:38] <zeeshan> archivist: nice
[14:41:47] <zeeshan> my c-clamp wouldnt work there
[14:41:51] <zeeshan> in tha tapplication
[14:41:59] <PetefromTn_> http://imagebin.org/301221
[14:42:37] <PetefromTn_> Apparently that is what I should have gotten which is pretty close to what I got with the settings I used apparenlty there is .005 lost in that tip you mentioned Tom
[14:43:41] <archivist> spot the clamps http://www.collection.archivist.info/showresult.php?prog=1&srcprog=searchv13.php&srcdata=title&Type=PD&Accn_no=9151&subject=25939
[14:44:32] <syyl--> ah
[14:44:51] <tjtr33> hose can you c ( hose & c clamps )
[14:44:52] <zeeshan> thats a lotty clamps.
[14:44:53] <zeeshan> haha
[14:44:58] <syyl--> nice setup ;)
[14:45:14] <zeeshan> i could 7 clamps
[14:45:16] <syyl--> love the hose clamps :D
[14:45:16] <zeeshan> *count
[14:45:19] <archivist> bodge cutter grinder
[14:45:56] <zeeshan> this slide rule was really wedged in the case
[14:47:23] <archivist> 4 G, 4 hose and 3 machinist clamps
[14:48:04] <zeeshan> http://i.imgur.com/ikoYI7n.jpg?2
[14:48:42] <archivist> people collect slide rules these days
[14:49:05] <zeeshan> what is this used for
[14:49:24] <archivist> !!!!! you should remember from school
[14:49:25] <zeeshan> looks like something ill never use
[14:49:26] <zeeshan> haha
[14:49:33] <zeeshan> dude i learned drafting in software
[14:49:34] <zeeshan> not by hand
[14:49:42] <archivist> kids these days
[14:49:44] <zeeshan> the only drafting i did by hand was project 3 views
[14:49:53] <zeeshan> this was like 8 years ago too
[14:50:00] <archivist> that is general purpose maths
[14:50:06] <PetefromTn_> Damn just got another call on the lathe... I want that CNC lathe but I am just unsure of going without a manual lathe for awhile...SUCKAGE
[14:50:18] <Tom_itx> i did drafting with paper and pencil
[14:50:32] <zeeshan> haha
[14:50:34] <zeeshan> what the hell
[14:50:46] <zeeshan> you can apparently find "sin x" for ancles between 5.7 to 90 degrees
[14:50:49] <zeeshan> interesting.
[14:50:57] <archivist> slide rules were expensive when I was a kid
[14:51:05] <zeeshan> how much?
[14:51:08] <Tom_itx> i wish i could find mine...
[14:51:31] <Tom_itx> priceless
[14:51:41] <archivist> a few weeks/months pocket money
[14:51:52] <Tom_itx> i remember the first HP calculator
[14:52:14] <Nick001-shop> PetefromTn_ You mean you didn't grab that beautifully rusty CHNC?
[14:52:56] <PetefromTn_> LOL I am THINKING about it...
[14:53:11] <PetefromTn_> would you get it if it was able to be had for around a grand?
[14:53:45] <archivist> I think I need manual lathes as well as cnc
[14:54:10] <archivist> one off is a lot easier and faster manual
[14:54:41] <Nick001-shop> depends on how deep the rust is on the Z slide - will it clean up without pits to score the wear plate under the Z axis
[14:54:44] <zeeshan> jog the cnc
[14:54:44] <PetefromTn_> http://imagebin.org/301223
[14:54:52] <zeeshan> i just found the sin of 33 degrees
[14:54:58] <zeeshan> took 2 minutes but i found it
[14:55:00] <zeeshan> :)
[14:55:15] <zeeshan> interesting little tool this is
[14:55:18] <archivist> multiply two numbers next
[14:55:39] <PetefromTn_> Yeah I am kinda pissed about the rust but I could really use a nice CNC lathe in here...
[14:56:14] <PetefromTn_> It really did not look all that bad in the photos I thought. He says it is nothing but light surface rust but I would have to go look at it..
[14:56:35] <XXCoder1> yeah rust could be like cancer
[14:56:46] <XXCoder1> have to be careful see if its just on surface or deeper
[14:56:53] <archivist> light rust makes a good oil holding surface :)
[14:57:10] <XXCoder1> in cars rust can be literal cancer, evenually destroying car if not taken care of
[14:57:32] <archivist> rust on cast iron is often minor
[14:57:57] <XXCoder1> guess because cast iron is tougher, and not painted. cars paint help rust grow deeper
[14:57:59] <zeeshan> 2.3*3.4
[14:58:09] <zeeshan> = 7.82 from calc
[14:58:19] <zeeshan> 2 minutes later from slide rule approx 7.8 ;p
[14:58:27] <PetefromTn_> http://tricities.craigslist.org/tls/4341313026.html
[14:58:35] <zeeshan> i gotta show this to my gf
[14:58:37] <zeeshan> this is bad ass
[15:01:02] <zeeshan> okay the slide rule is a lot faster
[15:01:07] <zeeshan> to find the sin of a weird angle quickly
[15:05:36] <PetefromTn_> Nick001-shop Man that thing is temptin' me LOL...I really wanted a larger one but with funds the way they are lately I am not sure if I could swing something bigger..
[15:06:30] <zeeshan> PetefromTn_:
[15:06:33] <zeeshan> that is dirt cheap!
[15:06:34] <zeeshan> buy it!
[15:07:10] <zeeshan> the guy just wants a walk in phone booth for it
[15:07:16] <zeeshan> rofl
[15:07:37] <PetefromTn_> tryin' to man... Got to sell my manual first and I am afraid I will be without a lathe for a good while until I can get it runnning...
[15:07:39] <Nick001-shop> the surface is hardened & ground steel and will pit if rusted.
[15:07:41] <Nick001-shop> All depends on what kind of work your doing - this machine is for lighter work although I've gone to 6" parts
[15:08:16] <sabotender> moo.
[15:08:22] <PetefromTn_> I doubt I have ever done anything much larger than 6" on my current lathe so that would be fine I think...
[15:08:27] <sabotender> wait, what is dirt cheap again?
[15:08:41] <zeeshan> http://tricities.craigslist.org/tls/4341313026.html
[15:08:44] <PetefromTn_> I really want to have an ACCURATE lathe for making parts here...
[15:08:50] <sabotender> I have never used a lathe before :-P
[15:09:05] <zeeshan> i've turned a 12" pierce on my lathe before
[15:09:07] <zeeshan> but it wasnt solid
[15:09:11] <zeeshan> it was a really thick tube
[15:09:25] <zeeshan> housing for friends turbine
[15:09:43] <PetefromTn_> mine will do 12 over the ways and 14 over the gap bed if necessary but honestly you gotta take crazy light cuts at that diameter....
[15:09:50] <archivist> accuracy on a lathe is in the hands of the user :)
[15:09:58] <zeeshan> archivist: tell me about it
[15:10:06] <PetefromTn_> not if it is a CNC lathe...
[15:10:07] <zeeshan> the other day i was grooving for my rotary valve
[15:10:25] <zeeshan> and did a couple of test cuts and measured and they were 0.002" off from what i was telling the machine
[15:10:29] <zeeshan> guess what it ended up being?
[15:10:39] <zeeshan> the grooving tool was stuck out too much by 1.5"
[15:10:42] <archivist> cnc does not make a silk purse out of a pigs ear
[15:10:43] <zeeshan> and was flexing
[15:10:54] <PetefromTn_> exactly right...
[15:11:03] <PetefromTn_> that was my point.
[15:11:04] <sabotender> archivist: why is that?
[15:11:16] <zeeshan> sabotender
[15:11:20] <zeeshan> cause you need to consider tool geometry
[15:11:23] <zeeshan> and work holding techniques
[15:11:30] <zeeshan> if they flex, cnc isn't going to fix that for yuou.
[15:11:35] <archivist> bad mechanics, machine design etc
[15:11:48] <zeeshan> unless you have some sort of live meaasuring device
[15:11:49] <sabotender> a lathe spins an object in a circle and has a cutting blade that makes it the same all around right?
[15:11:53] <zeeshan> like those marposs gauges
[15:11:59] <PetefromTn_> I have owned this manual for over a decade and made TONS and TONS of parts on it for myself and for customers so I will miss it when it goes but I really want a nice CNC lathe to run here.
[15:12:06] <archivist> but a hardinge is one solid lump
[15:12:07] <sabotender> its jused to make those interestingly shaped table legs
[15:12:17] <sabotender> -j
[15:12:45] <zeeshan> with those older hardinges
[15:12:54] <zeeshan> you gotta do some manintenance work before they run right
[15:13:02] <zeeshan> like from mrpete's videos
[15:13:12] <zeeshan> his tailstock was misalgined
[15:13:22] <Nick001-shop> you still need a manual lathe for certain work - like 1 pc of general work or making tooling -
[15:13:24] <sabotender> not sure what a tailstock is, but go on...
[15:13:35] <zeeshan> Nick001-shop: you can do all that stuff on cnc
[15:13:42] <PetefromTn_> I had one awhile back and did not have to do jack to it. It was a tight and smooth machine but it was just not a CNC lathe and was never going to be one...so I sold it.
[15:13:44] <zeeshan> by using a pendant
[15:14:00] <sabotender> how is tooling made with a lathe and why is a lathe so useful for making it?
[15:14:03] <archivist> you dont get feel with cnc
[15:14:05] <zeeshan> the main thing you lose is the 'feel' of turning the wheels
[15:14:13] <zeeshan> which honestly isnt that big off a deal because
[15:14:17] <zeeshan> you'll see it visually and hear it
[15:14:19] <zeeshan> if something is wrong
[15:14:29] <Nick001-shop> alot of times it's faster and easier on a manual lathe
[15:14:34] <zeeshan> i agree
[15:14:37] <sabotender> i can see how a hand router is useful, because it can cut on a template, but never understood the manual lathe
[15:14:51] <zeeshan> but if you're on a limited budget, i'd just use a cnc machine with pendant
[15:14:51] <PetefromTn_> Well I have been turning wheels for years on manual lathes so I am good with losing them to CNC now hehe
[15:14:53] <zeeshan> over a manual mill anyday!
[15:15:01] <zeeshan> cause its got way more capabilities at the cost of some time
[15:15:08] <sabotender> turning wheels?
[15:15:22] <PetefromTn_> handles...
[15:15:31] <zeeshan> PetefromTn_: even with manual i rarely turn by hand
[15:15:34] <zeeshan> i always use power feed
[15:15:41] <zeeshan> unless im using the cross slide to make a taper
[15:15:43] * sabotender withdraws from the discussion because he just doesn't understand the terminology
[15:15:47] <archivist> try hand turning with a graver :)
[15:15:47] <PetefromTn_> yeah mine has power feeds too....
[15:16:07] <archivist> like wood turning
[15:16:10] <Nick001-shop> a fixture to hold a part for secondaries on the mill - drilling hole patterns on the face of a lathe part
[15:16:40] <zeeshan> the other day i was drilling a 8 bolt bolt pattern
[15:16:43] <PetefromTn_> we do lots of that in the shop I am working in.. Usually lathe first then mill slots or bolt holes or whatever..
[15:16:51] <zeeshan> took me frigging 25 minutes
[15:16:55] <archivist> you can do artistic turning by hand
[15:16:56] <zeeshan> cnc did it in 5
[15:17:03] <sabotender> im just not that mechanically inclined. hell it baffles me how to integrate a turning part where one end is exposed to water and the other isn't
[15:17:06] <zeeshan> but im a slow turner, cause i like to double check
[15:17:22] <Nick001-shop> and how long to set it up?
[15:17:35] <zeeshan> the setup of the part took as long as setting it up on the cnc
[15:17:45] <zeeshan> (zero setting spindle)
[15:17:50] <R2E4> "Swing something bigger" pun intended? lol
[15:17:56] <zeeshan> the code literally was written in 2 minutes
[15:17:59] <zeeshan> i entered all the coordinates
[15:18:08] <zeeshan> using the gui on the controller
[15:18:28] <PetefromTn_> bolt circles and patters are a piece of cake..
[15:18:37] <zeeshan> i know they are!
[15:18:45] <zeeshan> but i'm saying its way faster to do it on a cnc =D
[15:19:23] <PetefromTn_> Man I dunno we have a guy in the shop there that ONLY runs one off parts in a manual knee mill with DRO and I would bet he could smoke you with it....
[15:19:25] <Nick001-shop> if you have 20+ pcs a fixture is going to be a +
[15:19:28] <archivist> clock pivot reconditioning fastest with http://www.collection.archivist.info/showresult.php?prog=1&srcprog=searchv13.php&srcdata=title&Type=PD&Accn_no=1065&subject=10353
[15:19:54] <sabotender> so ball screws allow fluid movement?
[15:20:00] <zeeshan> is that bronze chips everywhere
[15:20:01] <zeeshan> or wood
[15:20:02] <zeeshan> lol
[15:20:04] <archivist> graver and pivot file
[15:20:07] <zeeshan> ah wood
[15:20:19] <archivist> brass
[15:20:22] <zeeshan> archivist: you have a lot of machines
[15:20:34] <archivist> that is not mine ...grmble
[15:20:39] <zeeshan> ah
[15:20:46] <archivist> was the machine at work
[15:20:53] <zeeshan> sabotender: read!
[15:21:39] <zeeshan> wow
[15:21:44] <zeeshan> i just noticed the microscope attachment to that lathe
[15:21:46] <zeeshan> thats pretty cool
[15:22:11] <archivist> stereo zoom, wonderful for tiny work
[15:22:23] <archivist> that bit is mine
[15:22:42] <zeeshan> they have smething similar to that at the microfluidics lab
[15:22:48] <zeeshan> where they're always building stupid tiny things
[15:23:32] <archivist> I am going to put one over the watchmakers lathe I have set up at home
[15:24:00] <sabotender> zeeshan: huh read what?
[15:25:14] <zeeshan> sabotender: about ball screws
[15:25:18] <zeeshan> or watch videos
[15:30:56] <PetefromTn_> Damn my wife is cooking some Corned beef in the crock pot and the whole house smells AWESOME!! I am getting so damn hungry here it is not even funny LOL...
[15:32:33] <PetefromTn_> I'll tell you what tho when I was machining that champfer just a bit ago here I wanted to check the depth with the cutter and not being able to pause and shut the spindle and coolant down was a real PIA... I definitely miss the jog while paused feature for stuff like that.
[15:33:34] <PetefromTn_> Now I gotta design the fixture and machine it so I can do the other side of the part and then I can start cutting the dovetails etc..
[15:47:13] <zeeshan> PetefromTn_:
[15:47:25] <zeeshan> do you use BXA or CXA tool holders
[15:47:27] <zeeshan> for the your lathe
[15:49:03] <PetefromTn_> neither I have a homebuilt set of quick change toolholders I made years ago...
[15:49:31] <zeeshan> ah
[16:16:32] <NickParker> Hey people probably already know this, but I remember there was some confusion about it back in December.. The results of mesaflash --scanpci when you have a 6i25 in depends on the loaded firmware. it will identify as 5i25 regardless of jumper positions if it has 5i25 firmware on it.
[16:16:58] <NickParker> With firmware that uses work.sixi25_x9card.all it will identify as 6i25
[16:45:42] <sabotender> moo
[16:45:50] <XXCoder1> cow
[16:46:14] <sabotender> wait, I Was gone about an hour and this is as much as people has chatted in here :-P
[16:47:00] <sabotender> well. I wonder if I can use a cnc router to make carpentry wonders such as drawers and chests
[16:47:09] <XXCoder1> I bet yeah
[16:47:52] <XXCoder1> hell you can do in such way that theres details that would take long while in old way
[16:48:44] <sabotender> oh I don't need or want details in what I am planning
[16:49:25] <XXCoder1> lol ok
[16:50:28] <sabotender> I am going to sell my tablet computer to help fund my cnc router purchase
[16:51:09] <sabotender> I do not really need or want it anyway
[16:51:14] <PetefromTn_> sure you can... you can machine dovetails with a CNC router too....it is just a different way of doing it... https://www.youtube.com/watch?v=xaSl7JlhFq0
[16:51:53] <XXCoder1> indeed
[16:52:08] <XXCoder1> hell you can do designs that would hell for regular wood shop
[16:52:27] <sabotender> sexy tool changer
[16:53:00] <XXCoder1> One of plans I have once I have CNC is to do lots fun with inlay designs.
[16:53:28] <XXCoder1> different wood, stains so on. Bet it wouyld be awesome.
[16:54:00] <XXCoder1> I think simple idea too, do inside cut on large peice, do outside cut on inpay part
[16:54:02] <XXCoder1> inlay
[16:55:12] <PetefromTn_> I need to build a nice CNC router I know you heard me squalking about the Mechmate but that thing just looks so good.
[16:55:15] <XXCoder1> this'd be great addon. http://dbugslife.blogspot.com/2014/03/thein-baffle-cyclone-separator.html
[16:56:14] <PetefromTn_> meh just buy yourself a nice wood dust vacuum they are pretty cheap nowadays and pull WAY more suction than your typical wet or dry vac can...
[16:56:45] <XXCoder1> pete woodshop.ca has this GREAT seperator made from wood that makes your vaccum life much longer
[17:00:00] <PetefromTn_> yeah man I am a Professional woodworker from almost 25 years now so I have been there and done that with building custom cabinets and woodworking stuff. They even have some small cyclone units for reasonable prices for a machine the size of a 4x8 CNC router nowadays. Lots of options.
[17:00:29] <XXCoder1> awesome. :)
[17:00:43] <XXCoder1> ever checked that site? pretty interesting site
[17:00:49] <sabotender> mmm square 'dovetail' joints are prolly what im going to use
[17:01:15] <sabotender> PetefromTn_: almost all the men on my father's side have an occupation related to carpentry
[17:01:45] <XXCoder1> my family fathers tend to be business owners. my brother and me is first non-owners generation. :(
[17:01:48] <sabotender> im not too bad with wood myself, but ive only made simple stuff like birdhouses
[17:02:07] <XXCoder1> Still no idea what I should do
[17:02:41] <sabotender> but using a cnc to make drawers is a very exciting prospect
[17:02:52] <XXCoder1> I bet :)
[17:03:01] <XXCoder1> If I ever build larger one I would do it too.
[17:03:12] <sabotender> oh and its called a box joint :-P remove 'dovetail'
[17:03:13] <XXCoder1> I'm tired of stores shitty wood drawers and such,
[17:03:32] <sabotender> im just bad at terminology (and quite absent minded)
[17:03:50] <XXCoder1> I have this rather rare homemade drawer thats made from very light dry wood. very strong and light
[17:03:57] <XXCoder1> probably VERY flammable too lol
[17:04:00] <PetefromTn_> actually you can make both box joints or dovetails with CNC routers it has been done before...
[17:04:06] <sabotender> oh prolly so
[17:04:17] <XXCoder1> probably needs 5axis? because dove inward slope
[17:04:20] <PetefromTn_> You will be needing a rather large CNC router to make drawers tho...
[17:04:28] <XXCoder1> or use bit thats like that hmm
[17:04:40] <sabotender> PetefromTn_: not for small drawers with pre-cut planks
[17:04:40] <PetefromTn_> no you can machine angles with 3d toolpaths or angled cutters..
[17:05:00] <XXCoder1> yeah tought of that after using my hands lol
[17:06:06] <sabotender> PetefromTn_: i will prolly just use the cnc for the sidewalls of the drawer; the bottoms i can cut myself with a handsaw
[17:08:27] <PetefromTn_> just build a larger CNC router believe me you will be wishing you had if you do not LOL...
[17:08:58] <XXCoder1> I'm building plans now, I'm making it open to any best rail set I can find pretty cheaply
[17:09:51] <sabotender> PetefromTn_: can't afford a larger one
[17:10:05] <sabotender> im getting a smaller-well built one
[17:10:37] <sabotender> i dont mind doing a bit of hand-work anyway
[17:11:14] <PetefromTn_> the difference in price between a small one and larger one is not all that much especially if you build it yourself...
[17:11:27] <XXCoder1> pete yeah I noticed that
[17:11:41] <XXCoder1> motors is same, rails barely increase with length
[17:12:30] <sabotender> PetefromTn_: i don't be building one myself as i lak the tools to do so. Im on a VERY tight budget
[17:12:37] <sabotender> im getting the panther 210
[17:15:14] <sabotender> ugh its going to be a small fortune in hinges alone. lol
[17:15:39] <sabotender> i need to find a bag of 144 or something
[17:19:15] <Deejay> gn8
[17:19:44] <XXCoder1> interesting. resin 3d printer http://www.instructables.com/id/DIY-high-resolution-3D-DLP-printer-3D-printer/?ALLSTEPS
[17:26:39] <PetefromTn_> sabotender You can build an MDF router with simple hand tools man... should work great if you do it right. You can even get someone to cut your parts for you if you say pretty please probably LOL.. I don't have a CNC router or I would do it...
[17:26:57] <XXCoder1> pete thats what I plan too.
[17:27:04] <XXCoder1> how thick should mdf bed be though?
[17:28:52] <XXCoder1> inch? 12 inches? lol
[17:29:28] <PetefromTn_> XXCoder1 Dunno man I would get on the forums and read up on them lots of different designs for them and some are nicer than others. Probably 3/4 or 1" I would say but that depends a lot on the design. Loetmichel on here makes some nice ones from some kinda resin board that is much stronger than MDF but for a hobby router there are tons of MDF routers out ther.
[17:29:52] <XXCoder1> I am considering using cheap steel or alum L beans for gantry though
[17:30:30] <XXCoder1> it does need to rigidly hold 2 SBR 16 beams with sway or something
[17:31:34] <PetefromTn_> Check out those microcarve machines they are small but real nice design.
[17:32:04] <PetefromTn_> http://www.microcarve.com/zone14/mv1/MV2003.jpg
[17:32:28] <XXCoder1> not bad
[17:32:50] <sabotender> PetefromTn_: i could...but ive really set my mind to the panther
[17:32:55] <PetefromTn_> I would not mind building something like that from aluminum plate...Would work sweet.
[17:32:59] <XXCoder1> how much is a panther
[17:34:58] <Connor> I don't like the Z on those..
[17:36:11] <XXCoder> gonna love my stupid wifi dongle
[17:36:14] <XXCoder> crashed once again
[17:36:17] <sabotender> Connor: the z on what?
[17:36:34] <sabotender> XXCoder: they are about 765 usd
[17:36:37] <Connor> http://www.microcarve.com/zone14/mv1/MV2003.jpg
[17:36:41] <Connor> That design..
[17:37:03] <XXCoder> sobo not bad but from what I figure I would need less to build my cnc
[17:37:33] <XXCoder> expecially since I found some fvery high guality wood in garbage near work
[17:37:38] <sabotender> Connor: what is wrong with that design again?
[17:38:04] <sabotender> ive seen some quality work from the panther
[17:38:51] <Connor> Hard to explain.. But.. the Carriage can only go down to the bottom edge of gantry.. In never can go below it.. You have to use long bit's or a extended bracket to get your router lower..
[17:39:04] <sabotender> Connor: http://www.youtube.com/watch?v=TYAfNTvgTak theres also links to accuracy tests on the panther
[17:39:14] <XXCoder> this clamp system is cool, but wouldn't it also cause router bit to impact it if edge cuts is needed?
[17:39:17] <XXCoder> http://dbugslife.blogspot.com/2014/03/simple-cnc-clamp-workholding-system.html
[17:42:50] <PetefromTn_> https://www.youtube.com/watch?v=hAhJapz-21c Here's their larger model.
[17:42:51] <sabotender> XXCoder: lol im still reading that 3d printer creation
[17:43:30] <sabotender> is the microcarve better than the panther?
[17:44:01] <PetefromTn_> https://www.youtube.com/watch?v=kO8gejSGYuo
[17:45:01] <sabotender> out of stock and/or discontinued
[17:45:58] <PetefromTn_> I kinda like the fixed gantry moveable table setup on those and the rigid box design is nice almost does not look like an MDF machine.
[17:46:02] <sabotender> so price is unknoen :-P
[17:46:24] <XXCoder> pete from what I understand it makes for better rigid gantry
[17:46:46] <sabotender> PetefromTn_: yeah thats what i like about em too...very rigid
[17:46:48] <XXCoder> but problemic when large size since it requires twice X space than actual machine size
[17:46:59] <XXCoder> I mean twice X than actual working X length
[17:47:34] <sabotender> and that link i posted is exactly what ill be using my router for...to mill pcbs :-D
[17:47:43] <PetefromTn_> yeah the design is mostly for tabletop size machines I thought you guys were interested in. If you want like a 4'x4' then there are better options.
[17:48:28] <XXCoder> man the 3d print video is cool lol
[17:48:33] <XXCoder> flashes is fuynny too
[17:49:01] <PetefromTn_> You can download the .dxf files of that machine for free I think from this link... http://www.cnczone.com/forums/diy-cnc-router-table-machines/134221-microcarve-mv2-plans-files.html
[17:55:03] <sabotender> cool. i doubt ill be able to get the accuracy from a self made one compared to that panther. i have little mechanical experience. i CAN weld, though, i know, its weird
[17:55:04] <XXCoder> cnc dxf plans is GREAT if has cnc to make this cnc
[17:55:07] <andypugh> Hmm. "Linear move at line -1 would exceed the maximum of joint 2"
[17:55:43] <sabotender> i need an arc welder for a couple of my projects too as a matter of fact
[17:55:55] <PetefromTn_> XXCoder You could take them down to your local cabinet shop and have them cut them for you for pretty cheap I would think..
[17:56:01] <andypugh> Looks like there is something a bit strange with TOOL_CANGE_QUILL_UP, possibly only in JA4. (I am running a development version)
[17:56:16] <sabotender> hiya andypugh
[17:56:19] <XXCoder> yeah but then my design will not be based on that I would think.
[17:56:36] <XXCoder> I suspect mine will be wood base with metal L beams gantry
[17:56:36] <PetefromTn_> what are your travels?
[17:56:41] <XXCoder> using SBR16
[17:56:58] <XXCoder> that depends on best deal I can find on SBR thats also free shipping
[17:57:28] <XXCoder> 1000 mm or bit over 3 ft seems most common so likely will be my X length
[17:59:22] <PetefromTn_> yeah then that design probably won't work for you.
[17:59:31] <XXCoder> yeah
[17:59:41] <XXCoder> mine wont be too complex I dont think
[17:59:49] <PetefromTn_> The whole side of the base is like 22.2644 inches.
[18:00:28] <PetefromTn_> Would make for a sweet little table top machine tho. Cuts aluminum too pretty decent apparently.
[18:00:41] <XXCoder> good thing my design does NOT depend on size of rails. its very easily expandable. well till 8 feet long because thats bigger than standard 4' 8' board
[18:00:59] <PetefromTn_> what is your design?
[18:01:37] <XXCoder> roughly like this http://www.wired.com/design/wp-content/uploads/2012/10/blueChick_3.jpg
[18:01:52] <XXCoder> only with rails on sides, ball screw in middle under
[18:02:07] <XXCoder> gantry would be L metal beams with SBR
[18:03:04] <XXCoder> my SVG plans is incomplete, just bed and rails mainly not shown
[18:03:09] <XXCoder> and no sizes
[18:06:02] <PetefromTn_> You could probably make a CNC router from MDF based on the mechmate design relatively easy. I really love that design looks very stout.
[18:06:30] <XXCoder> wow pretty large cncs
[18:06:41] <XXCoder> http://www.mechmate.com/
[18:07:05] <sabotender> ooo with an attached vacuum
[18:07:11] <sabotender> secy
[18:07:18] <PetefromTn_> http://www.r8rphan.com/CNC/pix/CNC_build_21.jpg something like this but with larger gantry ends...
[18:07:21] <sabotender> looks like a shuffleboard
[18:07:40] <XXCoder> yeah I love that attached vaccum system. may be my future upgrade once I can make stuff from cnc. much simpler with cnc!
[18:07:49] <XXCoder> cnc making parts for itself! who'd thought of that lol
[18:08:21] <XXCoder> interesting design
[18:08:34] <sabotender> heh i always imagined using a dustbuster :-P
[18:08:36] <XXCoder> even I can make that, besides form having no idea how to do some of gantry]
[18:09:15] <XXCoder> thats why my plan is sbr rails everywhere. simpler lol
[18:10:18] <PetefromTn_> yeah it is simpler but costs a bunch more...
[18:10:33] <XXCoder> my design I think is very simple
[18:11:24] <R2E4> careful, 8020 twists!!!!
[18:11:47] <XXCoder> the reason I think I am using L beams is easy to make strong gantry. well not as strong as 8020 would be but suffecent for me
[18:12:45] <andypugh> I suppose this weekend wasn't a total waste, I did learn a lot about CAM, even if I was hoping to make parts. :-)
[18:12:59] <PetefromTn_> whaddya mean?
[18:13:16] <XXCoder> Two frames, one having very thick MDF or plywood as support for it as well as mount points for Z rails
[18:13:36] <NickParker> andypugh: If you had to hazard a guess, do you think I'll need to up the NumRegs value for the stepgen moduleID to implement table mode?
[18:13:54] <XXCoder> andy what cam was you trying to learn on?
[18:13:57] <NickParker> It seems like it would take more registers, but I don't know if the "StepGenNumRegs" variable will handle that for me.
[18:14:22] <andypugh> NickParker: Table mode does work, but possibly not with the number of outputs you need.
[18:14:51] <andypugh> I think NumRegs is about the counter registers etc.
[18:15:03] <andypugh> XXCoder: I am using CamBAM.
[18:15:28] <XXCoder> sahh yea been playing with that a bit. it has good cheap/good blance I think
[18:15:39] <NickParker> andypugh: Well I'll just try to make it blink LEDs in an appropriate way and hope for the best then. And ignore the ModuleID stuff for now, since all the table stuff is rolled into the standard stepgentag
[18:16:30] <andypugh> I initially did a an X-scan of the 3D shape, and added some profiles. Then I decided to convert outlines to pockets, so started again. Then eventually I realised that "waterline" does almost exactly what I did by hand with the pockets
[18:17:44] <andypugh> Though a weakness of all the CAM packages have tried so far is that "waterline" doesn't choose sensible waterline heights for mechanical components.
[18:18:01] <XXCoder> waterline?
[18:18:21] <andypugh> It's one of the CAM methods.
[18:18:24] <Tom_itx> level
[18:18:28] <PetefromTn_> http://imagebin.org/301223 I made that with CamBam today LOL..
[18:18:38] <XXCoder> niced
[18:18:45] <Tom_itx> andypugh what have you been working on?
[18:19:05] <XXCoder> that smiley face tjing is only thing I made so far. still no idea if it made sense and would be routed properly lol
[18:19:10] <andypugh> Frame stiffeners for a Ner-a-Car
[18:19:18] <Tom_itx> ahh i remember...
[18:19:18] <PetefromTn_> Waterline is a 3d toolpath strategy that kinda works around the part like a line of water draing down into the pocket.
[18:19:19] <R2E4> PetefromTn_: What size is that chanfer? .2?
[18:19:32] <XXCoder> hmm ok
[18:19:35] <Tom_itx> andypugh did you get code done for them?
[18:19:44] <PetefromTn_> R2E4 TOO DAMN DEEP LOL..
[18:19:53] <XXCoder> anyway I got files if you guys are curious lol
[18:20:10] <PetefromTn_> It was supposed to be .050 but when I screwed the pooch on the setup it turned out to be .075
[18:20:26] <andypugh> I would have made more progress except that all of friday night was spent cutting out shapes from 16mm plate with a 3mm bit. This is because the plate was only just big enough. A 6mm bit would have been a lot more approriate.
[18:20:53] <PetefromTn_> andypugh How do you find the 3d toolpaths in CamBam so far? Any good
[18:21:12] <andypugh> It seems pretty good if you choose the right options.
[18:21:49] <PetefromTn_> I have not done any 3d toolpaths yet in it and I am anxious to try it but have not found anything I need to machine 3d just yet.
[18:22:02] <andypugh> I have learned that if you want a flat surface at a given height then the trick is to set a specific finish height for the waterline op.
[18:22:18] <PetefromTn_> what do you mean does not choose sensible heights for mechanical components?
[18:22:23] <andypugh> Then add further waterlines starting there down to the next flat face.
[18:22:55] <Tom_itx> are you talking about the bolt boss's?
[18:23:32] <PetefromTn_> you mean a specific finish depth like the final depth setting in typical MOP's?
[18:23:40] <andypugh> Wel, say I have a 16mm blank and a flat surface at 3.3mm, and do a 3mm waterline, then I get waterlines at 13,10,7,4 mm. so my thinckess ends up at 4 not 3.3
[18:23:55] <tjtr33> NickParker, what kind of stepper are you trying to drive? i have some 8 pole ( 9 wire ) steppers, and am looking at the table mode OR extending stepgen.
[18:24:15] <NickParker> tjtr33: 4 pole unipolar
[18:24:18] <Tom_itx> ahh, it doesn't calculate for the final depth
[18:24:23] <NickParker> er, that's obviously not right
[18:24:36] <NickParker> 4 pole, only driving current through each pole in one direction
[18:25:05] <andypugh> Tom_itx: Well, it does caclulate for the _final_ depth. That's my point. But not for intermediate flat planes.
[18:25:13] <PetefromTn_> Have not tried it can you set the final depth for that?
[18:25:47] <andypugh> So, if you have an intermediate flat plane you need to set a final depth to suit, then add a second, third etc waterline op to touch the other surfaces.
[18:25:49] <tjtr33> NickParker, thx... oh, i would have thought that was built in, but maybe just 2 pole 3 pole and 5 pole
[18:26:08] <PetefromTn_> are you using bounding boxes to set that up?
[18:26:17] <XXCoder> found this, great guide I think. http://www.cnccookbook.com/CC3DCAMToolpaths.html
[18:26:25] <NickParker> tjtr33: there's a stepgen mode in software stepgen which does just what i want
[18:26:32] <andypugh> PetefromTn_: I am using bounding boxes too, but that's different
[18:26:32] <NickParker> but not in hm2 stepgen, outside table mode of course
[18:27:03] <tjtr33> yeh, i think mine would need more table entries
[18:27:26] <andypugh> I am using a boundary shape so that that it only machines the cavity and not the outside profile, because that would eat the jig.
[18:28:18] <Tom_itx> andypugh, how'd you work out the open end?
[18:28:47] <andypugh> The bounding box and/or editing the polyline profile
[18:29:35] <PetefromTn_> Got pics?
[18:40:08] <PetefromTn_> Jeez man I gotta get the pocket machined for this part so I can do the second side.
[18:49:53] <andypugh> PetefromTn_: Pics of what?
[18:51:10] <andypugh> The original drawing is here: http://www.geutskens.eu/neracar/100-frame_assembly.htm I am making parts 103 and 104. Which taper in all directions, and have a kink.
[18:52:44] <Tom_itx> mmm i thought the bottom was flat
[18:53:26] <PetefromTn_> Huh those almost appear like tubes in the drawing.
[18:53:51] <Tom_itx> frame stiffeners
[18:56:38] <Tom_itx> i bet the originals weren't aluminum either :)
[18:56:58] <andypugh> Oh, they were. That is why they no longer exist.
[18:57:07] <Tom_itx> really?
[18:57:14] <andypugh> Except as piles of white powder.
[18:57:34] <NickParker> in the PinDesc array, what is unit?
[18:57:55] <NickParker> the 'x"00"
[18:58:04] <Loetmichel> andypugh: i've seen that on a tank on the coast of france
[18:58:09] <Loetmichel> right on the beach
[18:58:26] <Loetmichel> the rusty steel motor block was there
[18:58:39] <Loetmichel> ... the aluminium head was completely missing
[18:58:46] <NickParker> oh nvm it appears to be the stepgen number for my application
[18:59:17] <Loetmichel> strange sight, seeing the bolts still in place and the valve cam shaft and the valves fallen into the cylinders ;-)
[18:59:29] <ebrummer> I'm prepping to convert a 3 axis bandit controlled cnc mill to LinuxCNC. the resolvers feedback into the westamp servo amps. upon conversion do I split the signal to the computer and the servo amps or just one of them?
[18:59:49] <andypugh> NickParker: Looking at regmap.txt, it looks like you can have 16 steps and whilst the default width is 6 bits, more is possible.
[19:00:25] <NickParker> andypugh: Cool, so my NumRegs should be fine.
[19:00:31] <NickParker> I only need 8 steps width 4
[19:00:34] <andypugh> It looks like you could have 32 wire steppers
[19:00:49] <andypugh> Surely you need width 8?
[19:01:12] <NickParker> andypugh: Why would I need 8?
[19:01:20] <andypugh> You have 8 wires to drive?
[19:01:28] <PetefromTn_> http://imagebin.org/301245 http://imagebin.org/301246 finally got it out of the machine now for the pocket milling so I can do the second side.
[19:01:29] <NickParker> No, I have 4 per motor
[19:01:52] <andypugh> Oh. Who has the 9-wire 8-phase motors then?
[19:02:04] <NickParker> tjtr33
[19:02:07] <NickParker> i think
[19:02:21] <andypugh> Right.
[19:02:56] <andypugh> In that case, why are you even looking at the bitfiles? You can just use table-mode as it currently exists.
[19:03:34] <andypugh> (Apart from needing a bitfile that actually allocates the other output pins)
[19:04:14] <NickParker> andypugh: That's all I'm doing, allocating pins.
[19:04:41] <andypugh> I had forgotten that the general bitfiles only allocate 2 pins per stepgen.
[19:04:49] <tjtr33> andypugh, i havent studied it enough yet, these 8pol Responsyn may need more table entries. again i have not studied enough to comment.
[19:05:02] <andypugh> All you need to do is allocate the other stepgen tags to physical pins.
[19:05:15] <NickParker> Hmm, I take it stepgenTable1Pin is replaced with DirPin and stegenTable0Pin is StepPin?
[19:05:37] <andypugh> tjtr33: Let me turn off the mill and have a look.
[19:06:01] <tjtr33> thx andypugh but dont stop what you're doing
[19:06:41] <tjtr33> monday i'll watch the stoc AGie drivers ( 8 leds) to see the pattern, and can scope it
[19:06:50] <tjtr33> and even get prints :)
[19:07:56] <tjtr33> i dug around and see that Mitsubishi wedm's also used them ( 80's vintage)
[19:11:47] <tjtr33> aaaaah email#385 cataloged, printed and dumped from cache , check off one more subfolder :|
[19:24:49] <andypugh> tjtr33: and NickParker: This is where the stepgen table pin codes are defined: http://git.linuxcnc.org/gitweb?p=hostmot2-firmware.git;a=blob;f=IDROMConst.vhd;h=ee9200775acd0fc365ff9ba56d320c8c7f2980d0;hb=3e97b6f53ad38c8cd05db36da8b888e5b7ac3850#l311
[19:28:05] <tjtr33> andypugh, thx, stored for study
[19:30:35] <NickParker> andypugh: Yep either you or tom got me to look there earlier :) Sorry for bothering you with that last question, it was pretty obvious.
[19:30:39] <andypugh> So, to make a bitfile that supposrts table mode I think you just need to allocate some pins to those names
[19:31:07] <andypugh> I have not, so far, found what sets the table width
[19:31:09] <NickParker> I believe I've done that at this point. I added all the table pins and such I wanted compiled, and the result isn't bricking anything.
[19:31:42] <NickParker> andypugh: As I recall, it just assumes you're using full width, and you 0 out the ones you aren't using in your table data
[19:32:09] <andypugh> Yes, as long as you only want 6. But tjtr33 needs 8
[19:33:47] <andypugh> It is possible that it simply counts how many you have used, actually.
[19:35:45] <tjtr33> ohm i expected to see something set an array size, but then i hit the end of the file haha
[19:36:25] <pcw_home> It counts the stepgen pins to determine the width needed (though I think 6 is the max currently)
[19:36:41] <andypugh> Looking at the vhd files for PIN_ST12_72 is looks like those files define pins by number, with an "8" to show them as outputs. There is a mapping to name here: http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=src/hal/drivers/mesa-hostmot2/pins.c;h=87fdfa2ca8f4432072f2749b6e785ad63f09c4e3;hb=HEAD#l126
[19:37:37] <andypugh> "Table7Pin" is defined (0x88 for an output) which looks like maybe you can have 8 wires.
[19:37:51] <andypugh> ("Step" being Table0Pin)
[19:38:30] <andypugh> 8 seems a more likely choice than 6, really :-)
[19:39:36] <tjtr33> andypugh, i saw Table7Pin but it seems to count form 1 not 0, so i guessed 7 pins, (still studying )
[19:40:33] <tjtr33> then again adding Table8pjn would not be tough ( though 1 have not looked at relations )
[19:40:38] <andypugh> The 0x81 is "Step" up to 0x88 for "Table7Pin", so that is 8 pins.
[19:41:33] <pcw_home> The current limit is 6 but could be changed
[19:42:10] <tjtr33> i thought 2nd entry was DIR then Table2Pin up to 7 this is near line 129
[19:42:29] <andypugh> I am machining these parts by dropping them into a milled pocket with some hot-melt glue, and putting the whole thing in the oven for a while.
[19:42:37] <tjtr33> in any case i need to read more, and thx!
[19:43:04] <pcw_home> there are constant for 8 table pins but the top two are currently unusable
[19:43:12] <pcw_home> bbl
[19:45:26] <NickParker> Well I have table mode half working on one test stepgen right now
[19:45:42] <NickParker> the StepPin and DirPin are both behaving as if they were part of the table
[19:45:52] <NickParker> but the table2 and table3 pins are behaving like inputs still
[19:51:08] <NickParker> Oh wait, I may not have actually compiled the version with table pins in it..
[19:53:18] <tjtr33> when you get back... you mean the table element names have nothing to do with their function? that 1st and 2nd (PWN and Dir) are just element to be used as you like?
[19:58:15] <andypugh> Yes, in table mode step and dir are table0 and table1
[19:58:48] <tjtr33> arrrgh! thank you very much,, that might have confused me
[19:58:56] <andypugh> NickParker: You need to add 0x80 to the code to make it an output.
[20:00:08] <NickParker> Where do I need an 0x80?
[20:01:47] <NickParker> here let me just try again with a fresh compile real quick - I think I may have just not actually put the latest code on yet
[20:06:25] <NickParker> Ok yeah I do need to change something, table2 and table3 are still inputs.
[20:07:23] <asah> I am looking into using the core of hal and halrun from another outside process. I can do this using the python module linuxcnc, but this only seems to work with axis running (I get channel errors if not).
[20:07:47] <asah> is it possible to run hal only, but talk to it from python / c++ over nml?
[20:10:15] <tjtr33> asah yes you can run hal w/o linuxcnc, lemme get notes
[20:10:39] <asah> and chat with it through an external python process?
[20:10:40] <asah> cool!
[20:11:07] <tjtr33> http://linuxcnc.org/docs/html/hal/tutorial.html
[20:11:38] <asah> BTW how far along is the new Messaging effort?
[20:11:42] <tjtr33> niw for controlling it thru python, i dont know, but suspect its possible. and for NML i dont know its neccesary
[20:12:40] <tjtr33> new messaging, like 0MQ? ask on dev to Michael H
[20:12:50] <asah> k
[20:13:41] <asah> thanks. I have been successful with commandline hal w/o linuxcnc, I am looking to have my own process talk to just a small running hal core.
[20:13:43] <asah> seems possible.
[20:13:46] <asah> Ill bug devel.
[20:13:59] <tjtr33> did you and xemet? have to drive an 8 pole stepper (Responsyn ), i saw something on an Italian linuxcnc site that mentioned it and your names
[20:15:00] <asah> I know nothing about 8 pole steppers and italians =) so... no.
[20:15:25] <tjtr33> haha ok np
[20:19:27] <ebrummer> I have a questions about encoders/resolvers
[20:21:34] <tjtr33> ask it ( rule of thumb here , just ask )
[20:21:44] <NickParker> rule of thumb on all irc really
[20:22:06] <ebrummer> most servo amps/drivers have feedback for the encoder or resolver going to them
[20:22:14] <tjtr33> if someone can help, they'll answer, silence means 'we dont know'
[20:22:19] <ebrummer> but if i'm switching to linuxcnc with say a Mesa 7i49
[20:22:47] <ebrummer> to run the resolvers into LinuxCNC to do the PID, do I not have the amp/driver part of the feedback loop?
[20:23:47] <MrHindsight> the amp/driver powers the motor, so it's in the loop
[20:24:17] <ebrummer> i might say using a gecko 320x, it has a pid feedback loop with it, completely independent of LinuxCNC
[20:25:25] <ebrummer> so the computer would send out signal to move, and the servo amps would respond and do the feedback loop, but then if I'm using the 7i49, i can take the resolvers (or encoders if that were what I had) to Linux CNC instead
[20:26:36] <asah> ebrummer, can you describe your components more?
[20:27:38] <ebrummer> 3 axis shizuoka CNC mill with a bandit controller. stripping bandit. i have 3 dc servo motors with resolvers that are driven by westamp servo amps. the servo amps are controled via +/- 10v signals from a controler
[20:27:56] <asah> typically the encoder or resolver are on the motor and feedback the position or velocity to linuxcnc which can respond in many different ways to "close the loop" and affect controlled movement.
[20:28:15] <MrHindsight> http://www.geckodrive.com/g320x.html
[20:28:46] <ebrummer> i mentioned the 320x cause depending on how these old westamp servo amps work, i might convert to encoders/those drivers
[20:29:12] <MrHindsight> it's a DC servo drive with STEP and DIRECTION
[20:29:26] <asah> ok. do you have any position feedback, glass scales etc?
[20:29:32] <ebrummer> no i do not
[20:29:42] <MrHindsight> http://www.geckodrive.com/g320x-rev-10
[20:30:28] <asah> do you have access to the encoder signal? or is it going straight to the westamp?
[20:30:37] <ebrummer> but it seems to me that all servo amps/drivers i've seen do the feedback loop internally (resolvers or encoders go back to the driver) and it responds to adjust for error
[20:30:44] <ebrummer> its resolver and it goes to the driver
[20:30:57] <ebrummer> i think it might also go to the old controller but i'm not sure on that
[20:31:35] <andypugh> ebrummer: Often there is a velocity loop internal to the drive, and the position loop runs in the controller.
[20:31:56] <ebrummer> ok, that might be what Im seeing then.
[20:31:59] <andypugh> But it is equally possible to run all the control loops in the controller.
[20:32:08] <NickParker> andypugh: What were you saying earlier about 0x80?
[20:32:09] <asah> right, so on my maho there are tachos on the motors, those feedbakc the velocity to the drive and the voltage sets the velocity desired.
[20:32:19] <asah> but I have glass scales, so I have an absolute position reference.
[20:32:33] <asah> for closing the position control loop.
[20:32:56] <ebrummer> i assume ideally, having linuxcnc do the full loop close is best for positional accuracy
[20:32:57] <tjtr33> ebrummer yes, and the position feedback need to get to linuxcnc thru some interface like Mesa
[20:33:02] <andypugh> (My mill runs current-mode, resolvers on the motors give position feedback, and LinuxCNC sends current commands to achieve the required position)
[20:33:44] <andypugh> Actually, velocity-mode amps with position control in LinuxCNC works well, and can be easier to tune.
[20:34:11] <tjtr33> ebrummer, are your scales absolute?
[20:34:20] <asah> the key for ebrummer is to find out how to access those resolver signals in linuxcnc
[20:34:37] <tjtr33> sorry that was asah had abso
[20:34:47] <asah> yep.
[20:35:57] <tjtr33> bbl
[20:36:44] <ebrummer> thanks
[20:37:11] <ebrummer> i'm sure i'll be back once i started testing the mesa cards with the servo amps
[20:37:29] <PetefromTn_Andro> Watching UFC fight night here... have not seen this in awhile.
[20:40:09] <tjtr33> ebrummer, this may be of use http://www.anderswallin.net/2008/09/servo-setup/
[20:40:15] <tjtr33> as a model
[20:41:11] <ebrummer> yep. that makes sense to me
[20:42:17] <ebrummer> just wasn't sure if i should be splitting the resolver signal and sending it to the servo amp and mesa
[20:43:26] <ebrummer> my servo amps are so old i'm not sure if I can even tune one axis properly since supposedly the pots are prone to fail (so i might upgrade servo amsp)
[20:43:31] <NickParker> tjtr33: You don't have any idea what andypugh was talking about do you? I'm pretty stumped right now.
[20:45:37] <andypugh> It may be that andypugh was talking rubbish
[20:45:53] <andypugh> What's puzzling you?
[20:45:54] <ebrummer> thanks again everyone.
[20:46:28] <NickParker> Well as of 5 seconds ago, it's that i don't seem to be using my pins file
[20:46:49] <NickParker> just thought to check dmesg again..
[20:47:30] <NickParker> Here's my pins file:
[20:47:31] <NickParker> http://pastebin.com/0mhDBuFd
[20:47:54] <NickParker> and I have use work.MYPINS0.all in the main TopPCIHostMot2.vhd
[20:48:27] <andypugh> does it all compile to make a bitfile? It's really hard to spot the errors in all the scrolling text
[20:48:48] <NickParker> Yes it all compiles, no errors
[20:48:54] <NickParker> billions of warnings, but that's inevitable it seems
[20:49:43] <andypugh> So, what does dmesg say when you use that bitfile?
[20:49:51] <andypugh> And which Mesa card are you using?
[20:49:54] <Tom_itx> some of the warnings you need to look at
[20:49:58] <Tom_itx> like timing
[20:50:33] <NickParker> Like these? "Timing constraint PATH "TSLowToMed_path" TIG ignored during timing analysis."
[20:50:41] <Tom_itx> no
[20:50:49] <Tom_itx> ones that exceed the restraints
[20:51:24] <NickParker> Is there a way to set what raises warnings and what doesn't?
[20:51:38] <NickParker> I don't really need to know every single Latch that gets trimmed..
[20:51:45] <Tom_itx> probably but i haven't messed with that
[20:53:13] <NickParker> Ok wait, I just reran my hal and dmesg after changing num_stepgens to -1 so they would all enable
[20:53:29] <NickParker> and now it's showing me the pins from PROB_RFX configuration
[20:54:05] <NickParker> which is the file I started from for my pins files
[20:54:31] <andypugh> dmesg will list the pins by name. You should see the table pins
[20:54:33] <NickParker> but I renamed the package in the MYPINS0.vhd, and my main vhd file says to use MYPINS0.all
[20:55:12] <NickParker> andypugh: Yeah I don't, I see the pins listed in PIN_PROB_RFx2_34
[20:55:28] <andypugh> Which card are you using?
[20:55:31] <NickParker> 6i25
[20:55:42] <NickParker> work.Sixi25_x9card.all in my code
[20:56:09] <andypugh> You need to reflash the 6i25 with the new bitfile using Mesaflash, and then you need to power-cycle the computer.
[20:56:20] <andypugh> (not just reboot)
[20:56:34] <NickParker> andypugh: alright, I've only been rebooting.
[20:56:36] <NickParker> Will do
[20:57:35] <skunkworks> I think when I was playing with the engraver - I hooked the drives directly to the printer port
[20:57:38] <skunkworks> heh
[20:57:41] <skunkworks> wrong window
[21:04:51] <NickParker> Ok I power cycled and now it seems to be using the right bitfile, but a new issue has cropped up: http://pastebin.com/eGwmDjE2
[21:05:02] <NickParker> Complaining about parameters in hm2_pci
[21:06:27] <andypugh> what does dmesg say?
[21:08:27] <NickParker> just getting that for you
[21:08:37] <nlancaster> so I am trying to get linux cnc running, too among other things see if windowsxp+mach3 is part of my z-axis step issue.
[21:08:42] <NickParker> http://pastebin.com/XysgaMyT
[21:08:50] <nlancaster> anyone know if an atom 330 dual core will run linuxcnc ok?
[21:09:34] <NickParker> nlancaster: Run it off usb and run latency test :)
[21:10:21] <andypugh> NickParker: Something wrong with the pin file: [ 520.120052] hm2/hm2_6i25.0: pin 21 primary tag is 0 (end-of-list sentinel), expected 34!
[21:10:22] <nlancaster> do you mean the "test base period jitter" ?
[21:10:26] <nlancaster> and if so what am I looking for in that?
[21:10:40] <nlancaster> nvm found the latency test. lol
[21:11:07] <NickParker> nlancaster: I don't actually remember the numbers you want, just that I got 25,000 and that was good enough
[21:11:26] <NickParker> nlancaster: wait a sec let me look them up
[21:11:59] <tjtr33> NickParker, yes i dont know what the 0x80 is about ( i guessed it might be a first entry but guesses dont count )
[21:12:49] <NickParker> http://linuxcnc.org/docs/2.5/pdf/LinuxCNC_Getting_Started.pdf
[21:12:52] <NickParker> nlancaster: page 24
[21:13:04] <nlancaster> thanks
[21:13:50] <nlancaster> that is spindle configuration?
[21:14:16] <NickParker> nlancaster: page 19 by the numbers on the pages
[21:14:19] <NickParker> page 24 of the pdf as a whole
[21:14:42] <nlancaster> ah thanks
[21:15:46] <NickParker> andypugh: I/O 21 is a pin for one of the stepgens I don't want which I turned into emptypin
[21:16:05] <NickParker> Oh, perhaps I need to adjust the instance number on StepGenTag..
[21:16:35] <NickParker> yeah it was set to 8.. now returned to 3.
[21:17:13] <NickParker> andypugh: I'm allowed to just emptypin out pins like this right? http://pastebin.com/Uhd5tCsc
[21:17:38] <NickParker> Oh wow that paste is near unreadable...
[21:17:43] <andypugh> I don't know. But why would you emptypin them?
[21:18:02] <NickParker> They were assigned to stepgen instances which I don't need
[21:18:09] <NickParker> I guess I could just leave them there
[21:18:35] <andypugh> But there is no harm in keeping them as stepgens, then disabling them in the HAL file to use as GPIO.
[21:20:14] <NickParker> Yeah actually that makes sense.
[21:20:21] <XXCoder> playing around with http://zero-divide.net/index.php?page=fswizard a bit
[21:20:33] <XXCoder> it dont have MDF and plywood as well as regular wood
[21:20:40] <XXCoder> would mahohgany work for those?
[21:22:15] <andypugh> I have never tried using it for wood.
[21:22:30] <andypugh> Anyway, work tomorrow. Goodnight.
[21:22:58] <NickParker> Thanks for all the help
[21:23:26] <tjtr33> gnite andypugh
[21:23:55] <pcw_home> emptypin can not be used for a actual hardware pin
[21:24:41] <tjtr33> NickParker, are you using the table mode, and are there docs for table mode? ( or just the code )
[21:25:03] <pcw_home> man hostmot2
[21:25:27] <pcw_home> (master only of course)
[21:25:58] <tjtr33> thx pcw_home
[21:27:20] <pcw_home> IOPortTag & x"00" & NullTag & NullPin
[21:27:21] <pcw_home> for GPIO only pins
[21:27:50] <pcw_home> constant IOPortTag : std_logic_vector(7 downto 0) := x"03";
[21:28:38] <NickParker> tjtr33: yeah the man page is all there really is
[21:30:19] <pcw_home> so you could define a GPIO only pin as
[21:30:21] <pcw_home> constant JustGPIO : std_logic_vector(31 downto 0) := IOPortTag & x"00" & NullTag & NullPin;
[21:31:17] <tjtr33> got it, reading "u32 r/w) table-data-N" now
[21:33:31] <pcw_home> the driver uses the 4 32 bit values as a string of up to 16 bytes each byte representing a output pin pattern
[21:33:51] <nlancaster> so after 10mins of using the computer, including surfing the web 15k max jitter
[21:33:53] <nlancaster> seems good
[21:35:10] <pcw_home> usually flash videos cause trouble if there are video driver issues
[21:35:53] <XXCoder> ipm = feed say 34 inch per min on fswizard?
[21:54:23] <tjtr33> pcw_home, am i understandng the table mode? http://pastebin.com/8gmtLx5J
[21:59:45] <pcw_home> not quite since the table data is just output as you specify
[21:59:46] <pcw_home> so for your specified output the table data would be
[21:59:48] <pcw_home> 0x02020101
[21:59:49] <pcw_home> 0x08080404
[21:59:51] <pcw_home> 0x20201010
[21:59:52] <pcw_home> 0x80804040
[22:01:21] <pcw_home> which could be shortened to
[22:01:23] <pcw_home> 0x08040201
[22:01:24] <pcw_home> 0x80402010
[22:01:26] <pcw_home> with a sequence length of 8
[22:09:31] <pcw_home> that is, the table data bytes are simply written to the I/O so your table-data-2 = 0x06060505
[22:09:33] <pcw_home> would output the pattern 00000101 00000101 00000110 00000110
[22:12:27] <tjtr33> ok, thx, reading...
[22:12:29] <Tom_itx> lifo?
[22:13:44] <tjtr33> ok, if i setup the sequence, am i concerned with counting up and down thru the table?
[22:14:10] <tjtr33> i mean to ask, do i just set up a single fwd revolution in the table?
[22:14:42] <pcw_home> looks like its LSbyte first
[22:16:12] <pcw_home> yes you set up the forward table sequence form the ls byte of table 0 to the MSbyte of table3 (assuming the table is that long)
[22:16:51] <tjtr33> great, this is all do-able by a config line. amazing work! thx
[22:16:55] <pcw_home> (table sequences can be 3 to 16 long)
[22:17:03] <pcw_home> Thank Andy
[22:17:37] <tjtr33> thanks andypugh ( very quietly, he's sleepin )
[22:17:53] <pcw_home> the table stuff was always there in the firmware but not easily used without driver support
[22:19:23] <tjtr33> and i can ignore where man hostmot2 says theres only 6 IO pins?
[22:19:23] <tjtr33> " In table mode up to 6 IO pins are individually controlled in an arbitrary sequence up to 16 phases long."
[22:19:39] <tjtr33> becuase andy extended it?
[22:23:56] <pcw_home> Actually i think it there was width limit of 6 at one time but the firmware doesn't seem to have that limit
[22:24:20] <pcw_home> constant StepGenTableWidth: integer := MaxPinsPerModule(ThePinDesc,StepGenTag);
[22:25:31] <pcw_home> looks like if you wanted 24 wide the firmware would not object, but Andys driver is limited to 8
[22:25:57] <tjtr33> it was mentioned that it might count the pins asked for. great thanks and have a great nite.
[22:30:22] <tjtr33> gnite all
[22:59:42] <XXCoder> probably stupid question
[23:00:06] <XXCoder> when I has a machine, do I have to set parameters like how large motor case are?
[23:00:08] <XXCoder> if so, how?
[23:00:28] <XXCoder> so cnc would not acciently hit motor case on workpeice when cutting some 3d shape
[23:16:49] <Valen> XXCoder: that's your problem
[23:16:56] <Valen> you can set the limits of motion for the machine
[23:17:09] <Valen> but there is nothing that will stop you from cutting holes in that machine
[23:51:21] <XXCoder> Valen: ok, thanks