#linuxcnc | Logs for 2014-12-26

[00:01:08] <mrsun> not a single soul here tonight? :P
[00:05:52] <PetefromTn_> I'm here
[00:06:05] <PetefromTn_> but I don't know what the hell you are talking about hehe
[00:06:33] <SpeedEvil> ''
[00:06:36] <PetefromTn_> I do want to get a probing setup on the Cincinatti VMC I have here and I have kinda started to build a special probe
[00:07:46] <PetefromTn_> and right now I am sitting here watching too many youtube videos about quadcopters and trying to decide if I can/should/even want to put some money into building one of those damn things.
[00:07:58] <mrsun> well as it is now if i do a offset of 0 on the top of workpiece ... i get say -50mm machine coordinates .. and that is my 0 point, but then when i make a probe move .. of -20 the machine coord position will be -70mm .. and that is below my maximum travel .. giving me an error =)
[00:08:55] <mrsun> oh well
[00:08:58] <PetefromTn_> we are talking about a spindle probe here or a table mounted tool probe
[00:09:01] <mrsun> to late to do this stuff now anyways
[00:09:08] <mrsun> spindle probe
[00:09:11] <mrsun> i guess
[00:09:19] <mrsun> straight probe to get a Zero point of the workpiece
[00:09:26] <PetefromTn_> I am leaning towards a table mounted tool probe setup.
[00:09:51] <mrsun> dosent work for me as my references are always on the top of my workpieces =)
[00:09:51] <PetefromTn_> would sure be nice to have both tho heh
[00:10:05] <mrsun> as wood can be everything from +- a couple of mm =)
[00:10:16] <PetefromTn_> what do you mean references?
[00:10:28] <mrsun> my Zero is always the top of my workpiece
[00:10:35] <PetefromTn_> do you touch off on top of the work piece?
[00:10:42] <mrsun> yes
[00:10:52] <PetefromTn_> yeah so is mine almost everything I do is typically from the top of the workpiece
[00:11:18] <PetefromTn_> right now I use G59.3 and set it up as a location at the right rear most extreme of travel
[00:11:23] <mrsun> but when i try and probe .. if i already have an offset set (when i change tool for example) the probe move is from the current coordinate system
[00:11:25] <PetefromTn_> I do this manually
[00:11:49] <PetefromTn_> then I go to G59.3 G0 X0 Y0
[00:11:51] <mrsun> so machine thinks it is at 0 .. even tho im at -60mm
[00:12:07] <mrsun> so doing a probe move of -20 will put me outside my maximum machine limits
[00:12:12] <mrsun> and axis screams at me
[00:12:13] <PetefromTn_> and I manually touch off the tools atop a 123 block all the tools that are not already set in the program
[00:12:37] <mrsun> so i would like to reset the coordinate system to the actual machine coordinate system and always do a move to my extreme travel limit =)
[00:13:14] <PetefromTn_> I would think that machine coordinates would always be where probing takes place no?
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[00:13:42] <PetefromTn_> then you select that position for your G54 movements or whatever?
[00:14:16] <mrsun> im realy to tired to explain this atm =) have to make some kind of illustration to be clear in what im saying i guess =)
[00:14:43] <mrsun> i can reset the coordinate system with G92.1 but then i reset all the axis from what i understand .. i just want to reset Z =)
[00:14:52] <mrsun> (Clear the offset)
[00:15:10] <PetefromTn_> I don't understand why your probe could exceed machine coordinates limits are you homing the machine before you do this?
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[00:16:21] <mrsun> like i said .. cant explain this now .. tired as hell
[00:16:32] <mrsun> aparently im just confusing you =)
[00:16:46] <PetefromTn_> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?CoordinateSystems
[00:17:02] <mrsun> ive told what i want .. i want to RESET the coordinate system of Z .. so it doesnt have ANY offset applied to it .. so -60 is actualy -60 FROM my home switch
[00:17:03] <PetefromTn_> Honestly you are probably explaining it perfectly fine I am just dense LOL
[00:17:37] <mrsun> when an offset is set .. -60 will be G54 Z position -60 ... so it can end up at -120mm
[00:17:40] <PetefromTn_> I have to think this stuff thru and try it on my machine before I get it usually.
[00:19:02] <PetefromTn_> Many users find that the behaviour of G92 is confusing.
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[00:19:23] <PetefromTn_> The main key point on G92 is to remember, G92 shifts ALL the work coordinate system based on current tool position.
[00:19:41] <PetefromTn_> This offset value will move all work coordinate systems (G54,G55 etc). The G92 offset can be cleared, unapplied, or reapplied using the extended G92 codes; see the link above.
[00:20:12] <PetefromTn_> That is what it says about the G92 in the wiki. Perhaps you need to use some other method of recording the probed position?
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[00:49:18] <zeeshan> hey guys
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[00:50:46] <zeeshan> http://i.imgur.com/RzWZh67.png
[00:51:03] <zeeshan> mach is using linux.. and it looks like a modified version of linuxcnc.
[00:51:14] <zeeshan> anyone know what it's called?
[00:51:19] <zeeshan> apparently its opensource.
[00:51:26] <zeeshan> i wanna use their macros.
[00:52:06] <zeeshan> it almost looks like andypugh's macros.
[00:57:25] <pcw_home> Thats is linuxcnc (ore maybe machinekit) no mach involved
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[00:57:42] <Connor> pcw_home: I think he meant Tormach
[00:58:04] <pcw_home> Yes Tormach is using Linuxcnc
[00:58:14] <zeeshan> i dunno this guy in the video
[00:58:16] <zeeshan> called its mach for linux.
[00:58:35] <zeeshan> he is a bit lost sometimes
[00:58:36] <Connor> That's the interface for the new 15" slant bed lathe
[00:58:37] <zeeshan> so he can be wrong
[00:58:55] <pcw_home> well I dont think it has any relationship to Mach
[00:59:22] <pcw_home> Tormachs custom GUI for linuxcnc
[00:59:58] <zeeshan> i cant find any info on it
[01:00:15] <zeeshan> i mean it should be opensource?
[01:00:21] <zeeshan> since they're modifying linuxcnc for their own use?
[01:00:34] <Connor> The GUI isn't LinuxCNC.. it's their own.
[01:00:47] <Connor> and they can make custom modules etc too..
[01:00:50] <zeeshan> they're using linuxcnc
[01:00:53] <zeeshan> for commercial purposes.
[01:01:10] <zeeshan> i thought any components that you develop for it need to be open source?
[01:01:15] <zeeshan> isn't that the whole deal with GNU open source
[01:01:28] <zeeshan> gnu gpl that is
[01:05:36] <pcw_home> You would think so, but they're not saying much about it yet
[01:07:40] <cradek> their customers, and anyone else two whom they distribute binary versions of linuxcnc, can absolutely request and should receive the complete corresponding source code
[01:08:20] * zeeshan just wants the conversational portion :-)
[01:08:34] <cradek> they have no obligation to give the source to you or me, if they don't distribute their version of linuxcnc to us
[01:08:36] * PetefromTn_ me too!
[01:09:14] <zeeshan> well i hope the linuxcnc community gets something out of it
[01:09:22] <zeeshan> maybe gets bigger due to its exposure
[01:09:25] <cradek> are you sure that isn't ngcgui stuff that we already have?
[01:09:27] <zeeshan> and more development :)
[01:10:02] <zeeshan> to me it looks like theyre using ngcgui
[01:10:07] <zeeshan> + portion of andypugh's macro codes
[01:10:08] <cradek> one of their customers, who requests and receives the source code, could of course distribute it as widely as s/he pleases
[01:11:18] <cradek> I haven't used ngcgui yet but I sure hear a lot of people speaking highly of it
[01:13:02] <Connor> I've used it to add tabs and stuff.
[01:14:29] <zeeshan> https://www.flickr.com/photos/128539016@N05/16106193772/
[01:14:34] <zeeshan> the 7i77 not looking naked anymore :)
[01:19:28] <zeeshan> ps this is why i hate drilling after stuff is wired in
[01:19:28] <zeeshan> https://www.flickr.com/photos/128539016@N05/16099063025/
[01:19:29] <zeeshan> !!!
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[01:22:47] <zeeshan> connor
[01:22:55] <zeeshan> i forget, did you use 3m double sideed tape for the ssd?
[01:23:01] <Connor> Yes
[01:23:02] <zeeshan> i used some random brand from an electrical store
[01:23:06] <zeeshan> and its already peeled off..
[01:23:16] <Connor> 3M worked just fine.
[01:23:17] <zeeshan> i cleaned both surfaces with non oiled alcohol too
[01:23:44] <Connor> 3M mounting tape
[01:23:52] <zeeshan> okay i need to get 3m ..
[01:23:57] <zeeshan> i use that for the car's trim
[01:24:07] <zeeshan> which sees -20C +100C
[01:24:11] <zeeshan> and it hasn't given up
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[01:53:54] <zeeshan> maybe someone can come up with a nice and elegant idea
[01:54:09] <zeeshan> on how to mount my enclosure vertically attached to the cnc
[01:54:19] <zeeshan> 24"W , 48" tall
[01:55:09] <zeeshan> http://i.imgur.com/EfFQS7a.jpg
[01:55:20] <zeeshan> im rotating the machine 90 degrees, so it'll be facing towards the engine crane in that pic
[01:55:33] <zeeshan> the umbilical comes out from the right side of the machine
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[02:24:44] <SpeedEvil> you mean to enclose the whole machine?
[02:24:48] <malcom2073> zeeshan: My dad has an excello with the box just slapped on the side near the back, lemme see if I have a pic somewhere
[02:25:00] <zeeshan> SpeedEvil: yes
[02:25:03] <zeeshan> malcom2073: okay
[02:25:11] <SpeedEvil> shower-curtain track on the ceiling?
[02:25:19] <zeeshan> i guess it would help to post the enclosure
[02:25:28] <zeeshan> https://www.flickr.com/photos/128539016@N05/15881152719/
[02:25:34] <zeeshan> thats the 24x48
[02:25:40] <malcom2073> zeeshan: http://carpenterswoodworking.com/wp-content/uploads/2014/05/1-Excello-with-centroid.jpg You can see it in the back
[02:25:41] <zeeshan> the motherboard side is the top.
[02:25:46] <malcom2073> it's a bit smaller than that
[02:25:49] <malcom2073> but similar idea
[02:26:08] <zeeshan> malcom2073: what does he have in the old blue box?
[02:26:21] <zeeshan> is the black box free standing?
[02:26:22] <malcom2073> zeeshan: http://carpenterswoodworking.com/wp-content/uploads/2014/05/c-New-box-with-drive-amps.jpg
[02:26:38] <malcom2073> The black box is gone now
[02:26:42] <malcom2073> It was on a toolbox
[02:26:45] <zeeshan> ah
[02:27:19] <malcom2073> You've got massive drivers heh
[02:27:37] <SpeedEvil> oh
[02:27:46] <zeeshan> malcom2073: power supply is bu ilt in
[02:27:47] <malcom2073> Ah nice, your PC is in the top box, I like it
[02:27:51] <malcom2073> Ahh gotcha
[02:28:24] <Tom_itx> zeeshan how big is the control box?
[02:28:30] <zeeshan> 24x48
[02:28:35] <zeeshan> x8 "
[02:28:56] <zeeshan> i looked in the garage again
[02:28:56] <Tom_itx> mount it on a swing arm like most of the machining centers do
[02:29:08] <zeeshan> it looks like i can mount it on the wall
[02:29:12] <Tom_itx> unless the box is too big for that
[02:29:13] <zeeshan> but then i can never move the machine
[02:29:21] <zeeshan> Tom_itx: i was considering that
[02:29:30] <SpeedEvil> 24*48"
[02:29:33] <zeeshan> but this thing weighs about 150lb
[02:29:38] <SpeedEvil> By about 8, I guess
[02:29:40] <zeeshan> so i'd need to make a fancy arm
[02:30:03] <Tom_itx> just clicked...
[02:30:54] <zeeshan> i wish i could go back to the part where i joined the two boxes
[02:31:01] <zeeshan> and instead of mounting them side by side like that
[02:31:12] <zeeshan> i shoulda mounted them facing each other
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[02:31:16] <Tom_itx> maybe 2 legs to the floor with a conduit out the top to secure it
[02:31:18] <zeeshan> so it woulda taken 24x24x16"
[02:31:31] <zeeshan> and i coulda made it plywood table cover
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[02:31:35] <zeeshan> and sat my computer on it lol
[02:33:15] <Tom_itx> you can still support it from the top on 2 legs
[02:34:00] <Tom_itx> facing outward like the blue machine is
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[02:34:36] <zeeshan> that works
[02:34:42] <zeeshan> requires some metal fab
[02:34:52] <Tom_itx> anything you do will
[02:34:58] <zeeshan> if i mount it to a wall
[02:35:02] <zeeshan> would be wood fab :)
[02:35:09] <malcom2073> Gotta get the CNC running to machine some parts to get the CNC running :P
[02:35:16] <zeeshan> haha
[02:35:24] <Tom_itx> it would be harder to move next time though
[02:36:05] <zeeshan> that is so true..
[02:36:08] <Tom_itx> some ways i wish my box was that size
[02:36:09] <zeeshan> thats the only thing thats holding me from doing that
[02:36:15] <Tom_itx> it's a bit smaller but a nice enclosure
[02:37:25] <Tom_itx> how many plugs are coming from the control to the machine?
[02:37:40] <malcom2073> So i have some 35mm THK rails, 1600mm long. Looking at mounting them to some 4x4 steel tube to make a 2x4 router( also have some 30mm THK rails for the shorter axis). How much of an issue is A: The "settling" of a frame after welding, and B: The leveling/shimming/alignment of the rails? I've seen people mount these things on extruded aluminum before without issue, but they're stronger than aluminum extrusion, possibly not than the 4x4.
[02:37:43] <Tom_itx> signal & voltage
[02:38:14] <malcom2073> Had a couple ideas from people, from expoxying the top of the tube, then grinding it down, to shimming with metal shims along the whole length, to just bolting it down and running the carriage along it as a tighten it
[02:38:48] <Tom_itx> how much will the frame warp after it sits a while?
[02:39:06] <zeeshan> Tom_itx: a lot
[02:39:07] <zeeshan> haha
[02:39:09] <zeeshan> like 20.
[02:39:10] <malcom2073> Tom_itx: I'm not sure, I've heard it can warp enough to cause issues
[02:39:12] <Jymmm> I have no idea wat you are working on, but so far it sounds like a clusterfuck in the making. I think you need to rethink the whole thing.
[02:39:15] <zeeshan> most of them are EASY to remove though
[02:39:19] <Tom_itx> you should stabilize that first
[02:39:27] <zeeshan> they are plugs..
[02:39:29] <malcom2073> Jymmm: At the moment, it's not much past the thought stage :P
[02:39:29] <zeeshan> so you pull em off
[02:39:29] <SpeedEvil> Anneal the whole thing in a big kiln.
[02:39:46] <Jymmm> malcom2073: Well, trash what ya got and start over =)
[02:39:49] <malcom2073> SpeedEvil: That was another option, weld then anneal
[02:39:55] <Tom_itx> maybe you should bolt the frame instead of welding it
[02:39:55] <Tom_itx> pin and bolts
[02:40:03] <malcom2073> Jymmm: Could trash the 35mm rails and buy smaller ones if they'd be that much easier :P
[02:40:18] <Jymmm> malcom2073: Just KISS
[02:40:21] <malcom2073> Tom_itx: Like ream and press in pins?
[02:40:52] <Tom_itx> no, go ahead with it but plan on making 2 more. learning from what you fucked up on the prior ones
[02:41:01] <Jymmm> FWIW 1 gal of propane weights 4.22 lbs.
[02:41:01] <malcom2073> Heh
[02:41:17] <malcom2073> Jymmm: So you're saying that using big rails for a router is a bad idea?
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[02:41:43] <Jymmm> malcom2073: No, just the process you described I think is way too complex.
[02:41:45] <Tom_itx> bolting will avoid warpage from the welding
[02:42:09] <Jymmm> Ewwww welded rails... yuck!
[02:42:19] <Tom_itx> you could weld it, anneal it and then have it surface ground
[02:42:45] <malcom2073> Yeah, so bolt and pinning would stop the warpage, but I still need to figure out how to best flatten the top of the tube to mount the rail to
[02:43:17] <Tom_itx> a friend used to do that with his machine plates but they were like 4-6" thick steel
[02:44:43] <malcom2073> That excello has enough throw to mill flat the short rail, but not the longer one
[02:44:53] <malcom2073> short tube*
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[02:45:37] <CaptHindsight> grind the 4x4 rails flat
[02:45:52] <CaptHindsight> rails/tube
[02:46:00] <zeeshan> is counterboring a 2x4
[02:46:02] <zeeshan> a common procedure
[02:46:06] <CaptHindsight> the THK rails have a max runout spec
[02:46:18] <Tom_itx> surface grinding a 6" thick steel plate isn't an easy task
[02:46:21] <malcom2073> CaptHindsight: By hand?
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[02:47:06] <CaptHindsight> malcom2073: if you have the time and desire, are you trying avoid the use of a surface grinder?
[02:47:22] <malcom2073> CaptHindsight: I don't have access to one, besides paying a machine shop to do so
[02:47:50] <CaptHindsight> malcom2073: that won't cost much
[02:48:05] <malcom2073> Hmm, I've never actually asked. I'll call a couple shops and get a quote
[02:48:08] <zeeshan> malcom2073: what kind of accuracy do you want
[02:48:11] <zeeshan> for your router?
[02:48:12] <CaptHindsight> then you'll have a nice flat surface to mount the rail to
[02:48:57] <Tom_itx> you will still get a little warpage from machining
[02:49:07] <malcom2073> zeeshan: This is a home router, realisitically I don't have a number in mind.
[02:49:10] <zeeshan> well
[02:49:13] <zeeshan> 4x4x.25"
[02:49:19] <zeeshan> isn't going to warp like crazy
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[02:49:28] <zeeshan> if your joints are nice and taight.
[02:49:28] <zeeshan> *tight
[02:49:29] <Tom_itx> but not like it would be without
[02:49:29] <CaptHindsight> sure but he doesn't need few micron accuracy
[02:49:47] <zeeshan> thats actually on the heavy sizde
[02:49:48] <zeeshan> for a frame
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[02:50:10] <zeeshan> i bet you can use 3x3x.125
[02:50:14] <malcom2073> zeeshan: The rails are 35mm, Which I've read tend to be straight in the short, but not in the long, so you need a stiff frame to keep them straight
[02:50:22] <CaptHindsight> if you want flat and cheap mount the rails to a surface plate
[02:50:40] <zeeshan> welll its like flatbar
[02:50:41] <malcom2073> CaptHindsight: there's a cast iron surface plate for sale near me at a overstock place for $200... I've been tempted
[02:50:45] <zeeshan> they're easy to bend
[02:51:13] <zeeshan> if you mounted them sideways
[02:51:17] <zeeshan> they wont deflect
[02:51:26] <CaptHindsight> malcom2073: how flat is that plate? I was thinking granite
[02:51:40] <malcom2073> CaptHindsight: It's been machined, not sure.
[02:51:44] <malcom2073> But it's a bit heavy heh
[02:52:04] <zeeshan> you're gonna neeed like 300lb
[02:52:06] <CaptHindsight> find out
[02:52:14] <zeeshan> actually i gotta go back and do calculations :P
[02:53:20] <malcom2073> CaptHindsight: It's an overstock place, they can't even tell me how much it weighs
[02:53:32] <malcom2073> Could take a dial gauge on an arm over and run it along it, see what comes out
[02:53:43] <SpeedEvil> ...
[02:53:46] <SpeedEvil> It's cast iron
[02:53:49] <SpeedEvil> oh
[02:53:51] <SpeedEvil> nvm
[02:53:56] <CaptHindsight> what are you going to use the router for?
[02:54:13] <malcom2073> CaptHindsight: Wood, aluminum, if the frame is sturdy enough some steel
[02:54:24] <SpeedEvil> That too. It seems rather overkill
[02:54:32] <malcom2073> It is, but the rails were cheap
[02:54:34] <zeeshan> 0.001 * 48*200e9 * 21.33301 / 48 = P
[02:54:58] <SpeedEvil> 4*4 wood is probably overkill in most cases
[02:55:23] <zeeshan> whoops
[02:55:52] <CaptHindsight> 4"^2 swiss cheese
[02:57:25] <SpeedEvil> 4*4 wood - 1.2m - loaded with 100kg in the middle will deflect .5mm
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[02:57:41] <malcom2073> heh
[02:57:44] <zeeshan> lol i keep getting a weird number
[02:57:47] <zeeshan> for steel
[02:57:55] <zeeshan> 766493lb
[02:57:56] <zeeshan> cant be right
[02:58:12] <SpeedEvil> zeeshan: I think you're into neutronium there. :)
[02:58:21] <CaptHindsight> sharp cheddar end mill
[02:58:50] <SpeedEvil> CaptHindsight: I have 8kg of sharp cheddar.
[02:58:51] <SpeedEvil> Hmm
[02:58:54] <zeeshan> ok lets work this again. simply supported beam. P = 48*E*I*deflection/l^3
[02:59:06] <zeeshan> oh duh
[02:59:10] <zeeshan> im throwing in 200e9.. and using inches.
[02:59:10] <zeeshan> haha
[02:59:27] <CaptHindsight> http://nasa3d.arc.nasa.gov/detail/wrench-mis good for tightening plastic space nuts
[02:59:46] <SpeedEvil> In space, all tools are ice-cream.
[03:00:08] <SpeedEvil> CaptHindsight: Well - ...
[03:00:23] <zeeshan> P = 48*E*I*deflection/l^3 = 48*30e6*8.83*0.001/48^3 = 115lb
[03:00:24] <zeeshan> there we go
[03:00:26] <zeeshan> more reasonablke
[03:00:37] <SpeedEvil> CaptHindsight: https://www.youtube.com/watch?v=A10XEZvkgbY
[03:00:38] <zeeshan> thats assuming steel, 4x4 tube, 0.25 thick
[03:00:58] <malcom2073> zeeshan: So overkill heh.
[03:01:07] <SpeedEvil> CaptHindsight: that is an e-beam 3d printer, usable for inconel
[03:01:09] <zeeshan> takes 115lb @ the middle to deflect it on the 48" span
[03:01:15] <zeeshan> well if youre cutting aluminum
[03:01:21] <CaptHindsight> SpeedEvil: yes they are nearby
[03:01:21] <zeeshan> you might hit that
[03:01:28] <CaptHindsight> me that is
[03:01:48] <SpeedEvil> CaptHindsight: e-beam is fun in principle at ISS, you can just step out on the porch
[03:03:01] <SpeedEvil> (probably not in practice, for several reasons)
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[03:03:05] <CaptHindsight> you still have to machine it unless you're making artwork
[03:03:18] <zeeshan> malcom2073: to be honest
[03:03:21] <SpeedEvil> Well - yes.
[03:03:24] <zeeshan> a square tube is a piss poor section
[03:03:29] <zeeshan> for a frame :P
[03:03:30] <SpeedEvil> But you only need to machine the surfaces
[03:03:38] <SpeedEvil> ^mating
[03:03:42] <zeeshan> because the material for the top and bottom of the square bar isn't doing much
[03:03:53] <zeeshan> thats why they use fancy i beams
[03:03:53] <SpeedEvil> If you're making surface plates - sucks.
[03:04:03] <malcom2073> zeeshan: True, but I beam is much more expensive heh
[03:04:05] <SpeedEvil> If you're making i-beams or struts or ...
[03:04:15] <zeeshan> you're right on that one :)
[03:04:21] <zeeshan> once in a while you can find em cheap
[03:04:32] <SpeedEvil> Cut it in half, weld it into an i-beam
[03:04:32] <zeeshan> steal some train track
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[03:04:33] <zeeshan> jk :)
[03:04:41] <malcom2073> I know where some is laying.... :-P
[03:04:59] <SpeedEvil> scrapyard + angle-grinder
[03:05:00] <zeeshan> honestly you need to first decide what kind of accuracy you want to hold
[03:05:04] <zeeshan> and what you're cutting
[03:05:12] <SpeedEvil> maybe you might even find some scrap green-painted cast iron
[03:05:13] <zeeshan> because that will effect your build cost a lot
[03:05:27] <CaptHindsight> https://www.youtube.com/watch?v=DLaXoX1fXps hand grind the tube
[03:06:21] <CaptHindsight> https://www.youtube.com/watch?v=HyKN52HD6RU 20 minute video version
[03:06:31] <SpeedEvil> CaptHindsight: angle grinder would be way faster
[03:07:12] <zeeshan> does anyone know how much load a stud can take for a typical home wall
[03:07:13] <zeeshan> in north america
[03:07:16] <malcom2073> zeeshan: I want accurate over the short, over the long isn't as important. When cutting large parts it's not as huge of a deal, since a 4ft long section of aluminum is going to have a lot of thermal variation in length anyway, but when cutting small parts it needs to be fairly close, like a couple thou
[03:08:02] <malcom2073> CaptHindsight: Nice! heh
[03:08:04] <zeeshan> usually i think 1 thou is a good number to aim for
[03:08:08] <CaptHindsight> zeeshan: how is the load applied?
[03:08:19] <Tom_itx> zeeshan, 636 lbs
[03:08:21] <zeeshan> CaptHindsight: straight down
[03:08:29] <zeeshan> almost
[03:08:32] <zeeshan> very little bending to it.
[03:08:39] <Tom_itx> https://courses.cit.cornell.edu/arch264/calculators/example7.1/index.html
[03:08:43] <Tom_itx> zeeshan ^^
[03:08:44] <zeeshan> lemme draw it. im bad at explaining by words.
[03:08:54] <SpeedEvil> zeeshan: timber is really quite strong in compression
[03:09:13] * SpeedEvil is trying to design a 3.6m cubic shed.
[03:09:17] <CaptHindsight> zeeshan: are you balancing the load atop a single stud?
[03:09:18] <SpeedEvil> And is being cheap.
[03:09:51] <SpeedEvil> If it can bend, that's when problems hit
[03:11:06] <Tom_itx> that site covers beams and post configurations
[03:11:45] <SpeedEvil> Oooh - thanks!
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[03:13:41] <zeeshan> http://i.imgur.com/Y8Xdyrh.png
[03:13:49] <zeeshan> okay thats a cross section.
[03:13:59] <zeeshan> hatch is on the stud
[03:14:06] <zeeshan> black things are the lag screws
[03:14:11] <Tom_itx> did you get the link?
[03:14:16] <zeeshan> yes i saw
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[03:14:24] <SpeedEvil> zeeshan: what are you hanging off them
[03:14:36] <zeeshan> im thinkking the cnc enclosure
[03:14:40] <zeeshan> which weighs 150lb
[03:14:41] <SpeedEvil> zeeshan: it's very different if it's a lead plate 1/2" from the wall center of gravity or a shelf
[03:14:50] <zeeshan> ive mounted an air dryer before
[03:14:53] <zeeshan> which weighs 200lb..
[03:14:55] <SpeedEvil> Is this into one stud?
[03:14:56] <zeeshan> but i think i went overkill with the mounting
[03:14:57] <Tom_itx> if you're gonna hang the box just screw 4 5/15 lag screws in each one and call it good
[03:15:03] <zeeshan> no its 150lb distributed over 2 studs.
[03:15:17] <zeeshan> but because of the center of gravity of the enclosure
[03:15:26] <zeeshan> it'll have a tendency to pull on the top mounting lag screws
[03:15:28] <SpeedEvil> Then, unless shit is _very_ rotten, it'll be just fine
[03:15:32] <Tom_itx> so add support legs under the box
[03:15:34] <SpeedEvil> zeeshan: by maybe 20 pounds
[03:15:58] <Tom_itx> any wall header is built the same way
[03:16:05] <Tom_itx> with support legs under each side
[03:16:07] <zeeshan> i aint a carpenter :)
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[03:16:20] <Tom_itx> i ain't either but i know that much
[03:16:32] <zeeshan> thats not a bad idea
[03:16:43] <zeeshan> that way the wall anchors arent in shear anymore
[03:16:50] <Tom_itx> then all the wall is supporting is the box tipping over
[03:16:59] <Tom_itx> which is minimal
[03:17:14] <zeeshan> that 636lb is a bit confusing
[03:17:17] <zeeshan> what kind of load is that
[03:17:19] <zeeshan> pure compression?
[03:17:22] <zeeshan> that cant be right :P
[03:17:26] <Tom_itx> top down load
[03:17:34] <Tom_itx> like the legs under your box
[03:17:37] <zeeshan> ah
[03:17:42] <zeeshan> i guess its limited due to buckling
[03:17:47] <Tom_itx> so 1200 + lbs if you use 2 legs
[03:17:49] <zeeshan> cause im sure wood in smaller lengths can take more than that
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[03:18:14] <Tom_itx> it's still the same dimension
[03:18:17] <Tom_itx> why would it?
[03:18:32] <zeeshan> just seems like very little
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[03:18:57] <Tom_itx> support the middle from buckling with cross braces and it will likely take more
[03:18:58] <zeeshan> ive had 2x4 hold 4000lb
[03:18:59] <zeeshan> before
[03:19:06] <Tom_itx> lucky you
[03:19:06] <zeeshan> (wedged under a machine)
[03:19:15] <zeeshan> they creek
[03:19:23] <zeeshan> but seems to hold it after it settles
[03:19:24] <CaptHindsight> zeeshan: if I was you I'd rip out that wall and replace it with cinder block or concrete
[03:19:29] <zeeshan> CaptHindsight: rofl
[03:19:33] <zeeshan> you're hardcore
[03:21:13] <CaptHindsight> http://www.cesco.com/resources/616013/221509-ProductImageURL.jpg run two of these down to the floor to carry the load
[03:21:48] <zeeshan> i hate wood
[03:21:54] <zeeshan> =[
[03:22:41] <zeeshan> http://i.imgur.com/f9Agmon.jpg
[03:22:49] <zeeshan> look at my setup for this 200lb dryer
[03:22:58] <zeeshan> 4 corner brackets
[03:23:01] <zeeshan> massive 2x4
[03:23:02] <zeeshan> haha
[03:23:07] * zeeshan went overkill
[03:24:01] <SpeedEvil> https://courses.cit.cornell.edu/arch264/calculators/index.html
[03:24:06] <SpeedEvil> that is a userul page!
[03:24:45] <zeeshan> i just finished taking this class
[03:24:49] <zeeshan> "Advanced structural mechanics"
[03:25:03] <zeeshan> i used to think i knew how to design a structural member in all aspects
[03:25:13] <zeeshan> like transverse shear, torsion, bending, blah blah
[03:25:29] <zeeshan> but holy cow, stuff gets more advanced if you really want to consider everything
[03:25:34] <zeeshan> torsion causes warping stresses
[03:25:46] <zeeshan> which can be huge for a restrained member
[03:26:02] <zeeshan> non symmetric loading causes fancy s tuff too
[03:26:11] <SpeedEvil> yeah.
[03:26:27] <zeeshan> i think theres one book out there
[03:26:30] <SpeedEvil> If you actually want to remove 50% of the metal/wood/... you need that shit.
[03:26:32] <zeeshan> that has it _all_
[03:26:50] <zeeshan> i lied, thers more than one book
[03:26:52] <SpeedEvil> zeeshan: Does it include designs for the shelf to hold such a massive tome?
[03:26:54] <zeeshan> by timoshenko
[03:27:00] <zeeshan> SpeedEvil: rofl
[03:27:09] <zeeshan> good point :)
[03:27:16] <zeeshan> all my stuff is metal in nature
[03:27:29] <SpeedEvil> Metal is nicer in many ways.
[03:27:29] <zeeshan> but the civ eng guys deal with wood all the time
[03:27:35] <zeeshan> and soil and concrete
[03:27:43] <zeeshan> but they have to apply statistical approaches
[03:27:48] <zeeshan> or "rule of thumbs"
[03:27:48] <SpeedEvil> I just bought some structural cheese.
[03:27:57] <zeeshan> structural cheese?
[03:27:58] <SpeedEvil> http://www.ebay.co.uk/itm/321210152209
[03:28:10] <zeeshan> whatcha making
[03:28:30] <SpeedEvil> I'm planning playing with pulltrusion and perhaps filliment winding
[03:28:45] <SpeedEvil> And this is ridiculously cheap
[03:28:45] <zeeshan> kinda like that video i think you posted
[03:28:46] <zeeshan> of a cylinder
[03:28:49] <zeeshan> being warped
[03:28:53] <zeeshan> *wraped
[03:29:02] <SpeedEvil> yeah
[03:29:22] <SpeedEvil> $90ish for 25kg of fibreglass
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[03:40:23] <CaptHindsight> anyone get anything interesting from Santa today?
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[04:07:14] <jdh> thermal tights
[04:09:10] <zeeshan> rofl
[04:12:25] <jdh> guess that's common for .ca dwellers
[04:12:41] <zeeshan> yes
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[04:13:03] <jdh> my first pair.
[04:13:09] <zeeshan> its the only way we can have babies up here
[04:13:14] <zeeshan> :D
[04:14:00] <zeeshan> wire spool
[04:14:02] <zeeshan> er
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[04:14:13] <zeeshan> is there any reason to keep 12" diameter
[04:14:15] <zeeshan> wire spools
[04:14:20] <zeeshan> actually more like 9"
[04:14:27] <zeeshan> they are metal
[04:14:37] <CaptHindsight> empty spools?
[04:14:41] <zeeshan> yes
[04:14:47] <zeeshan> http://www.metaltags.com/assets/images/New%20Images/img_1283.jpg
[04:14:48] <zeeshan> that style
[04:15:31] <CaptHindsight> sure for winding your 3d printer filaments that you make from old milk containers and scrap plastic :)
[04:15:49] <jdh> because you have too much space and need trash to occupy it.
[04:16:05] <zeeshan> lol
[04:16:30] <CaptHindsight> they are also good for winding up the 478 feet of wire that falls off a broken plastic spool
[04:16:49] <CaptHindsight> one drop and it's a mess
[04:17:09] <CaptHindsight> I haven't seen metal spools in years
[04:17:38] <CaptHindsight> http://www.3ders.org/articles/20141219-protocycler-a-fully-integrated-desktop-filament-extruder-grinder-launches-on-indiegogo.html
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[04:32:37] <zeeshan> i dunno the local store
[04:32:42] <zeeshan> carries filament in spools already :D
[04:32:47] <zeeshan> im gonna throw em away
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[05:06:56] <SpeedEvil> I found where to get relatively cheap wood from a local place that deliers - so yay
[05:07:06] <SpeedEvil> (for xmas)
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[07:29:21] <Jymmm> Lil scary... http://www.dxsoul.com/product/diy-red-led-illuminated-car-toggle-on-off-switch-12v-20a-901146171
[07:31:30] <Connor> Jymmm: ?? Why?
[07:31:41] <Jymmm> look at the top terminal
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[07:32:26] <Connor> Hmm.
[07:32:36] <Connor> That's a bit odd.
[07:32:47] <Connor> Might be the ground or for the LED
[07:33:02] <Jymmm> like VERY close to what probably would be a metal plate it's mounted to
[07:33:24] <Connor> That's Gotta be the ground for the LED then.
[07:33:28] <Connor> or light.
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[07:37:04] <Jymmm> Maybe, maybe not. Plus it's PVC too
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[07:40:09] <toastyde1th> off topic question - does anyone do photography with an x100s or x100t
[07:41:29] <Jymmm> That's Retro FUGLY!
[07:42:14] <toastyde1th> haha you are literally the first person i've ever met who doesn't like how the series looks
[07:42:43] <Jymmm> I'm not a hipster
[07:43:19] <Jymmm> and $1000... for THAT thing... OH HELL NO!
[07:43:36] <toastyde1th> hahahaha
[07:43:51] <toastyde1th> i am honestly shocked you don't like how it looks
[07:44:03] <toastyde1th> it's one of the best cameras in that form factor, so it's not really performance that sucks
[07:44:07] <Jymmm> $150 for the same thing... http://www.frys.com/product/7987030?site=sr:SEARCH:MAIN_RSLT_PG
[07:44:16] <toastyde1th> hahahaha
[07:44:21] <toastyde1th> except... it's not at all the same thing
[07:44:24] <toastyde1th> body style aside
[07:44:32] <Jymmm> AND it has wifi too
[07:44:53] <toastyde1th> actually body style also included because what you linked isn't a rangefinder
[07:45:24] <Jymmm> I do care if it gave me a blowjob every day... NO!
[07:45:39] <toastyde1th> that would be a very impressive camera
[07:45:44] <toastyde1th> I'm not sure where that attachment would go
[07:46:14] <Jymmm> on the hotshoe.. http://www.amazon.com/Fleshlight-Original-Male-Masturbator-Pink/dp/B0026P3P7M
[07:46:24] <toastyde1th> impressive
[07:47:00] <toastyde1th> but still, the x100 series is pretty much universally acclaimed
[07:47:07] <toastyde1th> style-wise
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[07:47:17] <toastyde1th> this is the first I've ever heard anyone say they don't like it
[07:47:19] <Jymmm> who cares abut style?
[07:47:30] <Jymmm> its the results of the photos that matters
[07:47:31] <toastyde1th> well it's the first thing you mentioned, so I'm assuming you do
[07:47:42] <toastyde1th> it's not something I'd have mentioned at all
[07:48:04] <Jymmm> They focused on style, basiclly takign away form other areas
[07:48:24] <toastyde1th> what do you see as having been negatively impacted?
[07:48:27] <Jymmm> there is no way I could ever take that camera seriiously
[07:48:38] <Jymmm> even the viewfinder is crud
[07:49:03] <toastyde1th> ...wat?
[07:49:03] <Jymmm> it's bulky, for NOT being a DSLR
[07:49:10] <toastyde1th> the viewfinder has stellar reviews?
[07:49:23] <Jymmm> Too thin for a decent battery life/sice
[07:50:03] <toastyde1th> battery life isn't going to be as good as my main camera, agreed
[07:50:50] <toastyde1th> i get around 3000 shots per charge on my main camera
[07:50:55] <toastyde1th> looks like this gets 300-500
[07:50:59] <toastyde1th> which is fine for what I'd be using it for
[07:53:30] <toastyde1th> i like that it's essentially pocketable and has on-body manual controls, as that's all I really shoot with
[07:53:38] <toastyde1th> and don't have to lug around 10 lbs of camera
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[08:11:30] <Jymmm> http://www.ia.omron.com/product/item/tlq_2001e/
[08:11:39] <Jymmm> http://www.dxsoul.com/product/tl-q5mc1-plastic-proximity-switch-sensor-grey-earth-yellow-901354209
[08:17:00] <Jymmm> DB9 male AND female screw terminal adapters: http://www.dxsoul.com/product/hf-9pin-3-81-block-terminal-db9-connector-module-set-green-901343061
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[08:47:35] <mrsun> so i try again then :P Is there any way to reset the coordinate system just for Z axis ? so that its in machine coordinates not offset coordinates? =)
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[09:11:52] <Deejay> moin
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[09:22:59] <renesis> mrsun: for a single move use 'g53 z[n]'
[09:23:28] <renesis> mrsun: to change the whole coordinate system, set the Z original to its machine space origin
[09:24:02] <renesis> so like, check where you are in machine space, and then set origin for Z, using the machine space z value as your offset
[09:24:19] <renesis> s/original/origin
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[09:36:48] <mrsun> renesis: i want to reset it it .. remove ALL offsets for Z axis
[09:36:51] <mrsun> but only Z
[09:37:18] <mrsun> just like the "unhome" or whatever its called in axis does
[09:37:21] <mrsun> removes the offset for that axis
[09:42:46] <mrsun> hmm
[09:43:52] <mrsun> ye G53 i guess is nice .. but when doing a straight probe it uses the current coordinate systems offset ...
[09:44:11] <mrsun> i want to be able to do a straight probe to say -70 (that is my maximum Z travel in machine coordinates)
[09:44:19] <mrsun> even if im at -65 from the start
[09:45:33] <mrsun> renesis: hmm that last part ..you mean a G92 Z<#MachineSpaceCoord> ?=
[09:45:44] <mrsun> but how do i get the machinespace coord ?
[09:47:40] <renesis> are you using axis gui?
[09:47:46] <renesis> i think its #
[09:48:15] <renesis> if you go to view, there will be an option to display machine space instead of workspace
[09:48:51] <mrsun> yes axis gui but this is a probe routine .. dont want to have to go to the computer and manualy reset the axis
[09:49:04] <mrsun> a probe button on the pendant
[09:49:15] <renesis> oh, yeah then not completely sure
[09:50:03] <renesis> i wouldnt know how to specify to use current machine space coordinate to use as the offset
[09:50:56] <mrsun> thing is i want to remove the offset set for Z axis when i "Touch off" in the gui
[09:50:56] <renesis> i would look into the linuxcnc variable based gcode tho
[09:51:39] <mrsun> as when i touch off with the button in the gui i guess its the G54 coordinate system gets set to those values .. but then when i do a G38.1 it reads the G54 coordinate systems data .. not the machine coordinate data
[09:51:50] <renesis> there is a way to specify variables and constants, i dont know if it makes current position available as a variable, though
[09:52:20] <mrsun> G38.2*
[09:52:34] <mrsun> http://www.linuxcnc.org/docs/devel/html/gcode/overview.html#sub:numbered-parameters
[09:53:01] <mrsun> found these .. maybe 5161 - 5169 ?
[09:53:04] <mrsun> or something like that
[09:53:37] <renesis> oh nice they have named paramaters now, think thats new
[09:54:40] <renesis> mrsun: yeah looks like that might work, tho i wonder what the value for home is stored as
[09:55:00] <mrsun> my home position is offset as 0, 0, 0
[09:55:04] <renesis> i would assume offset from current in machine space
[09:55:04] <mrsun> in the ini file
[09:55:24] <mrsun> but the explaination of thiose parameters are very poor
[09:55:25] <renesis> thaats might only be used with limit switches
[09:55:45] <renesis> well, home switches
[09:56:18] <renesis> so those might be constants relating to that, not offset from current position
[09:56:37] <mrsun> first i do when i go to the machine is to home it (machine goes to 0, 0, 0 then sets the stored G54 coordinate system (81.6, 63.4) (thats my current stop zero on the table ..
[09:56:54] <mrsun> the Z tho i do need to touch off each time i change tool
[09:57:11] <mrsun> and with an offet of 0 at top of workpiece, change tool then straight probe .. i get errors from axis cause i exeed the axis movement
[09:57:18] <mrsun> so i want the probe to be in machinespace not workspace
[09:57:30] <mrsun> cause in machinespace i actualy know my limits =)
[09:58:27] <renesis> heh, yeah youre kind of looking at the same shit i would think to look into
[09:58:29] <renesis> gl!
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[09:58:59] <mrsun> :P
[09:59:59] <mrsun> well stuff that bugs me ..then i have to go to the compuiter ... jog the Z axis up .. touch it of some 50mm from machine limit to be able to make my probe .. and some bugs in my classic ladder etc makes it a dangerous move .. as all of the sudden the machine can move 20 units upwards .. woom :P
[10:00:47] <mrsun> so realy . .only thing i need to know is HOW to cancel the offset for Z axis
[10:00:49] <mrsun> nothing more
[10:04:35] <renesis> i have spring collets
[10:04:51] <renesis> so like, in program tool changes just dont happen
[10:05:03] <renesis> split up all my programs
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[10:06:23] <renesis> something like your solution would be neat, but its pretty simply to post toolpaths separately and just zero z every time
[10:06:29] <renesis> *simple
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[10:19:21] <mrsun> yes but i zero Z every time (touch off top of workpiece) but i need to go to the computer and reset the location of the Z manualy ... and i dont want to have to do that! =)
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[10:28:52] <mrsun> oh is it as simple as doing G10 L2 P0 Z0 to remove the offset from Z ?
[10:30:21] <mrsun> i have to examine my code i guess .. sucks that its not uploaded to my dropbox so i can do that from the comfort of the sofa :P
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[10:50:28] <mrsun> hmm can i call some kind of block of gcode from mdi commands ?
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[10:57:08] <mrsun> when i press touch off in axis gui, what coordinate system is set then ? G54 ?
[10:58:26] <renesis> i think you can select in the popup, G54 is default
[10:59:18] <renesis> if you mean when setting zero with gcode, it prob does whatever workspace is active if you dont specify, workspace gcodes are modal
[11:00:05] <renesis> theres a box under the mdi input shows active modal commands (i think, this is all from memory my cnc controller is 500 miles away)
[11:00:15] <mrsun> might only be the problem that when i do it from mdi the axis gui isnt reset (the plot isnt moved) like it is if i press touch off in the gui
[11:01:16] <renesis> weird
[11:01:49] <mrsun> i think the touch off button issues a redraw of the backplot
[11:01:55] <mrsun> tho mdi commands to change coordinate system doesnt
[11:02:12] <mrsun> so all moves is offset to the backplot in the view of the screen
[11:02:18] <mrsun> if done by mdi commands
[11:02:41] <mrsun> where are the linuxcnc gurus when you need em? :/
[11:02:46] <mrsun> stupid xmas!
[11:05:01] <renesis> sleeping
[11:05:07] <renesis> its 3am dude
[11:08:02] <mrsun> haha :P
[11:08:07] <mrsun> 12:01 here ...
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[12:23:00] <jthornton> lol
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[13:22:51] <mrsun> i dont get it . .what is the difference of G92 and G10 L20 P1 ?
[13:25:31] <mrsun> G10 sets a fixture offset, G92 sets some global offset ?
[13:25:44] <_methods> g10 actually changes the workoffset
[13:25:55] <_methods> work fixture offset
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[13:26:30] <jthornton> When G92 is executed, the origins of all coordinate systems move.
[13:26:57] <mrsun> hmm ... this is kinda hard to visualize or understand :/
[13:27:13] <mrsun> say i have a point on the table that is always my X0, Y0 on the table .. should i use G92 to set this offset or G10 ?
[13:27:27] <_methods> i'd be very careful with g92
[13:27:28] <mrsun> (the machine home is actualy further away from this point
[13:27:43] <jthornton> G92 offsets all 9 coordinate systems, G10 L2/20 only offset one coordinate system
[13:27:57] <mrsun> hmm ok
[13:28:03] <cpresser> mrsun: you can make this point x0y0 with home_offset in the ini-file
[13:28:07] <jthornton> I use G92 on my plasma cutter only
[13:28:26] <jthornton> I use G10 on my mill and lathe
[13:28:31] <mrsun> cpresser: thing is that it moves around a bit as i plane of the stops etc =)
[13:28:45] <mrsun> so i rather set that point myself with a touch off ...
[13:28:53] <jthornton> exactly
[13:30:08] <mrsun> G10 doesnt update the backplot tho ?
[13:31:09] <jthornton> what do you mean update the backplot?
[13:31:29] <mrsun> in my touchoff i do now G38.3 Z-30 F100, when it touches i do G92 Z7.52 (my plate thickness), G0 Z20 (retract)
[13:31:40] <mrsun> should i do G10 L20 P1 Z7.52 insted ?=
[13:32:17] <mrsun> gaah these positive limits
[13:32:42] <jthornton> yea, I'd use G10 L20
[13:34:13] <jthornton> G10 L20 updates the backplot for me
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[13:35:38] <_methods> well if his program is using something besides g54 it won't update
[13:35:52] <jthornton> why is that?
[13:35:54] <_methods> he could be on any workoffset with g92 and it would update
[13:36:00] <_methods> p1 is g54
[13:36:13] <jthornton> ah see that now
[13:36:30] <jthornton> yea if he is in G55 and does a P1 you will see nothing
[13:36:34] <_methods> yeah
[13:37:29] * jthornton ponders to continue with cairo or go back to opengl
[13:37:50] <_methods> yeah the hardest part is choosing what path you want to take lol
[13:38:03] <_methods> once you pick one it's usually not too bad getting it working lol
[13:38:17] <mrsun> is G10 things persistent when restarting linuxcnc ?
[13:38:20] <jthornton> well I have cairo sorta figured out
[13:38:42] <_methods> whatever you have in g10 will be put into the workoffset register when it runs
[13:38:46] <cpresser> mrsun: yes. touchoffs are persistned
[13:38:48] <_methods> when the program runs
[13:38:49] <cpresser> ~persistend
[13:38:49] <jthornton> yea, so is G92
[13:39:19] <mrsun> it doesnt move the backplot thing when i do G10
[13:39:30] <mrsun> it moves the X Y Z thing ..but not the actual backplot data
[13:39:54] <_methods> what workoffset are you using in your program / what workoffset is active
[13:40:03] <jthornton> that's what is is supposed to do, "make the current point have the coordinates"
[13:40:27] <mrsun> _methods: G54
[13:40:34] <cpresser> mrsun: yes. because the backplot is stored in absolute coordinates. thats why it doesnt move when you move G54,...
[13:41:10] <mrsun> its kinda confusing to dare to start the machine if you cant see that the pointer is at the right location of the plot :P
[13:41:45] <cpresser> the preview of the gcode howver should move
[13:41:50] <_methods> lol most machines don't even have graphics
[13:42:06] <cpresser> only the red backplot does stay afaik
[13:42:06] <_methods> you should be able to look at your code and tell what it's going to do
[13:42:35] <mrsun> the white stuff deosnt move with G10
[13:42:59] <cpresser> mmh.. weird. it should do the same as a axis-touchoff inside the gui
[13:43:05] <cpresser> try to reload the gcode
[13:44:58] <jthornton> the only thing that moves is the blue/red/green Cartesian pointer when you do G10 L20
[13:45:26] <mrsun> gaah .. this is hard to understand . .now i do G10 L20 P0 X0 .. and the numbers in axis gui still says "G54 X: -1.0003"
[13:45:27] <mrsun> :P
[13:45:28] <jthornton> then press reload program
[13:45:48] <jthornton> and the back plot is now redrawn in the new place
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[13:46:48] <_methods> P0 should be equal to G53 which is machine coordinates
[13:47:01] <_methods> which should act like a G92 if you just pushed that
[13:47:25] <_methods> it would shift the x machine to x0 at that coordinate
[13:47:29] <jthornton> P0 is the current coordinate system G54 or what ever you have current
[13:47:39] <_methods> really?
[13:47:42] <_methods> interesting
[13:47:54] <mrsun> P0 is active coordinate system from what i read
[13:48:01] <mrsun> so if G56 is active it will offset that one
[13:48:13] <_methods> well don't every use that on a fanuc controller
[13:48:18] <jthornton> exactly
[13:48:42] <jthornton> oh I didn't know we were talking about a fanuc controller
[13:48:48] <_methods> we arent
[13:48:56] <mrsun> (im talking about linuxcnc only)
[13:48:56] <_methods> i'm just saying i'm used to fanuc
[13:49:15] <jthornton> I'm used to DX-32
[13:49:16] <_methods> i had no idea linuxcnc did that
[13:49:28] <_methods> fadal?
[13:50:07] <jthornton> no, hmm crap can't remember now
[13:50:41] <jthornton> it's on my BP VMC
[13:50:54] <mrsun> can i do a probe move in machine coordinates insted of G54 space ?
[13:51:43] <_methods> well i think linuxcnc handles G53 weird
[13:52:05] <jthornton> so did I at first
[13:52:06] <_methods> machine coordinate(G53) moves are not modal
[13:52:17] <_methods> and must be commanded before every line
[13:52:23] <_methods> which is normal
[13:52:44] <mrsun> cause if i do a probe move G38.3 Z-1 F100 ending up at Z-1, then do a G10 L20 P0 Z0 (Set current offset to 0 so in machine im at -1), then i do a new move and set G10 again ... i will be at machine Z-2
[13:52:47] <mrsun> so it will just increment
[13:52:58] <_methods> yes
[13:53:38] <mrsun> i want everything Z related reset to machine coords before i do a probe move .. so i can ALWAYS probe from 0 (my home switch) to -70 (my maximum Z move)
[13:53:50] <mrsun> cause if it increments to much i will be outside machine limits
[13:54:16] <cpresser> you could move with G53 Z0, then do G10
[13:54:29] <_methods> ^^
[13:54:33] <mrsun> but then i cant fit it inside one MDI line =)
[13:54:59] <jthornton> mrsun, what are you trying to do?
[13:55:03] <_methods> linuxcnc has an EOL char right?
[13:55:43] <mrsun> jthornton: its my touchof routine .. first time i touch off i can move fine, then i change tool and try and do a new touchoff (moving -30mm again) and that move will be outside of the machine coordinates =)
[13:56:41] <_methods> set your z from your gauge line
[13:56:46] <_methods> your spindle nose
[13:56:47] <mrsun> So first i move from Z0 (my home position for Z) to say -30 .. hitting at -29, fine .. i can route and everything so now my G54 Z is -29, then i do another probe move of -30 ... incrementing this to -59 ... in machine coordinates as G38.3 moves from the offset position .. not machine coordinates =)
[13:56:48] <jthornton> did you clear the Z offset before your probe move?
[13:57:08] <mrsun> jthornton: no .. thats what im looking for how to do!
[13:57:18] <mrsun> and not from the computer .. but from GCode! =)
[13:57:31] <mrsun> dont want to have to run to the computer every time as i have a pendant
[13:57:41] <jthornton> G53 G0 Z0
[13:58:16] <jthornton> or better yet, G10 L2 Z0 P1
[14:00:11] <mrsun> so, "G53 G0 Z0" "G10 L20 P0 Z0" "G38.3 Z-30 F100" but that ends up on 3 lines .. and im doing it from classic ladder with MDI commands ..
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[14:00:26] <mrsun> and that only wants to execute one line at a time ? =) so i would have to have 3 MDI lines to do the touchoff ?
[14:00:32] <jthornton> don't need the G53
[14:01:04] <jthornton> use a subroutine
[14:01:17] <mrsun> how do i call that from an MDI line in the mills.ini file then? =)
[14:01:21] <jthornton> I was on a different thought with the G53
[14:01:38] <jthornton> o<myfile> call
[14:01:49] <mrsun> will that search in my mills config folder? =)
[14:02:02] <jthornton> look in the O Codes section of the User Manual
[14:02:22] <jthornton> depends on what search path you have set up in your ini file
[14:02:43] <jthornton> best to set up a subroutine folder under linuxcnc
[14:03:07] <mrsun> oh
[14:03:15] <mrsun> advanced stuff this for little me =)
[14:03:44] <jthornton> just put the subroutine in your nc_files directory
[14:15:37] <mrsun> thanks alot! =) now stuff is starting to look good =)
[14:17:06] <mrsun> have to try this stuff! =)
[14:17:18] <mrsun> just running in simulator atm so =)
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[14:19:24] <mrsun> jthornton: is there any way o issue a reload of the gcode from gcode? =)
[14:19:40] <mrsun> or classic ladder
[14:26:48] <jthornton> there is a python reload function... I'm pretty sure a program can't reload itself.
[14:28:28] <jthornton> if your looking at the backplot then your near the keyboard and mouse...
[14:29:07] <jthornton> Ctr R reloads a program or a mouse click
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[14:29:41] <mrsun> jthornton: atm the computer stands quite unaccessable .. the screen is showing tho :P
[14:30:53] <jthornton> http://linuxcnc.org/docs/html/common/python-interface.html
[14:33:54] <mrsun> hmm ... ok =)
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[14:44:11] <mrsun> ok lets hope this works now! =)
[14:44:18] <mrsun> thanks lot everyone who helped =)
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[18:48:13] <CaptHindsight> http://www.ars-inc.com/briquetter.aspx anyone know the price range of these?
[18:48:31] <CaptHindsight> for aluminum
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[19:38:47] <mrsun> damn that touch of routine works well! removed like 5 blocks of classic ladder and replaced with 2 lines :P
[19:38:52] <mrsun> and it works VERY well
[19:38:59] <mrsun> had to add a debounce to the probe input tho
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[19:49:47] <mrsun> learned alot today =)
[19:50:46] <mrsun> a good touch off routine makes life so much easier =)
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[20:02:27] <SpeedEvil> np: The Divynyls - I touch off myself.
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[20:04:04] <mrsun> question is tho .. will the routine work with micro tools (0.5mm drills etc) or will they break .. maybe should have a checkbox to tell if use microtools and do the touch off sequence alot slower :P
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[21:07:54] <PetefromTn_> http://charlotte.craigslist.org/tls/4819808546.html Well you wanted the Classic most desired lathe of all time...Here's your chance LOL
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[21:09:29] <SpeedEvil> Is that a reasonable price?
[21:09:36] <unfy> rawr!
[21:10:07] <PetefromTn_> I would think so if everything is in good shape it is a steal from what I have seen of these...
[21:10:11] <SpeedEvil> I thought so
[21:10:19] <SpeedEvil> I mean - een without a drive
[21:10:30] <SpeedEvil> Almost as cast iron weight alone
[21:10:58] <SpeedEvil> http://www.ebay.com/itm/Metal-Lathe-mini-ManSon-restored-antique-micro-Monarch-10EE-jewelers-watch-/231414756807
[21:11:01] <syyl> dont the ee10 have that strange drive?
[21:11:02] <PetefromTn_> well when you consider the 12x36 asian lathe I just sold now sells new for over 3k and is not even a fraction of the lathe that one is...
[21:11:23] <syyl> motor driving a dc generator, driving a dc motor that turns the spindle?
[21:11:31] <SpeedEvil> syyl: the above is driveless
[21:11:44] <syyl> even better :D
[21:11:58] <syyl> throw a big 3ph motor in, hook up to a vdf, done
[21:12:15] <PetefromTn_> If you really don't like it you have my permission to NOT buy it LOL
[21:12:47] <syyl> it would be mine, if there where not a few 1000km between me and it ;)
[21:12:48] <SpeedEvil> If that was transportable to me, I'd be damn tempted. Even though it'd be basically my sole purchase of this year
[21:13:12] <syyl> but I think shipping to germany via ups would be horrible expensive ;)
[21:13:14] <PetefromTn_> anything can be shipped LOL
[21:13:43] <SpeedEvil> taking it to scotland might be going a bit far
[21:13:56] <syyl> mayve they can email it
[21:14:10] <zeeshan> :D
[21:14:32] <zeeshan> SpeedEvil: you're in scotland?
[21:14:35] <SpeedEvil> yes
[21:14:42] <zeeshan> so lucky
[21:14:48] <zeeshan> british lathes ftw
[21:15:17] <zeeshan> no reason to ship one from north america :D
[21:15:35] <SpeedEvil> yeah - but I don't have one
[21:16:28] <zeeshan> http://i.imgur.com/JAZMzbf.png
[21:16:31] <zeeshan> this is what i decided on
[21:16:37] <zeeshan> im not gonna put those legs
[21:16:41] <zeeshan> if the enclosure feels sturdy
[21:17:26] <SpeedEvil> legs are almost certainly not needed
[21:17:39] * SpeedEvil is trying to design a 3.6m cubed shed.
[21:17:51] <SpeedEvil> I was concerned on the weight.
[21:17:58] <SpeedEvil> Then I did the wind force calculations. :/
[21:18:23] <mrsun> https://www.youtube.com/watch?v=MtYB9zEwQ3w
[21:18:24] <SpeedEvil> Structural planters to the rescue.
[21:20:41] <zeeshan> SpeedEvil: where can my sister buy a good set of metric drill bits
[21:20:47] <zeeshan> is there a "home depot"
[21:20:53] <zeeshan> or something along those lines in uk
[21:21:11] <zeeshan> shes coming to visit, and i figured its a good time to stock up on some metric tooling :-)
[21:21:17] <mrsun> sister ?
[21:21:21] <mrsun> is she cute? ;P
[21:21:29] * mrsun is such a stereotype
[21:21:57] <SpeedEvil> http://www.screwfix.com/p/titan-drill-bit-set-metric-25pcs/91250
[21:22:00] <SpeedEvil> for example
[21:22:06] <SpeedEvil> have quite a lot of stores nationwide
[21:22:40] <mrsun> uk .. and metric ... those words cant even blend? :P
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[21:23:27] <zeeshan> sweet
[21:23:30] <zeeshan> there is one in luton
[21:23:31] <zeeshan> :D
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[21:24:31] <zeeshan> i like how metric drills are the same price as our imperial drills
[21:24:45] <zeeshan> http://www.screwfix.com/p/erbauer-hss-cobalt-drill-bit-set-25-pc/78029
[21:24:46] <zeeshan> wow
[21:24:48] <zeeshan> thats a killer deal
[21:27:11] <BitEvil> yay - out of stock for delivery - so I can't be tempted
[21:27:12] <furrywolf> just make sure they're not made in china. chinese drill bits are one of the most frustrating products...
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[21:27:34] <zeeshan> furrywolf: depends
[21:27:45] <zeeshan> the ones you can buy 100 of for $20
[21:27:49] <zeeshan> have a shit load of runout
[21:27:50] <zeeshan> haha
[21:27:53] <BitEvil> I question if you are actualy going to eaily find non-made-in china drillbits
[21:28:12] <furrywolf> zeeshan: and are incapable of drilling in anything tougher than balsa.
[21:28:29] * furrywolf has lots of bits that say USA on the shank
[21:28:31] <zeeshan> you just gotta give em a fresh grind
[21:28:31] <BitEvil> That's to do with the QC and spec
[21:28:40] <zeeshan> and then they work fine
[21:28:46] <zeeshan> but still doesnt fix the runout problem
[21:28:58] <zeeshan> all my morse taper stuff is made in usa
[21:29:01] <BitEvil> The last significant manufacturing proces on those drills is probably to stamp USA on the shank
[21:29:26] <furrywolf> I once got a set of harbor freight bits made of steel so soft that the second you pressed down on the drill, they promptly bent 90 degrees right at the chuck jaws.
[21:29:36] BitEvil is now known as SpeedEvil
[21:30:03] <furrywolf> I was trying to drill ROOF FLASHING, and they'd dull the second they touched the aluminum.
[21:30:08] <SpeedEvil> That takes skill.
[21:30:26] <SpeedEvil> Weathered Al can be abrasive as hell
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[21:30:55] <zeeshan> delicious aluminum oxide
[21:31:03] <unfy> i picked up an inexpensive (yet metal) 1.25hp router from local store to use as spindle. yay.
[21:31:18] <furrywolf> no, they were just made from crap steel that they either didn't heat treat or was so substandard it didn't harden when they did.
[21:31:23] <SpeedEvil> I wish round routers were a thing here
[21:31:57] <zeeshan> man boxing day sales up here are lame this year
[21:31:58] <furrywolf> my guess is someone found a way to substitute cheaper steel somewhere in the supply chain
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[21:32:04] <zeeshan> not a single good deal.
[21:33:14] <furrywolf> bbl, working on cars... probably replace the clutch cable in one of my subarus, maybe work on radio wiring.
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[21:33:37] * SpeedEvil is trying to work out if making wooden trusses is sane.
[21:33:45] <SpeedEvil> Or just buying the thicker timber
[21:33:53] <zeeshan> trusses look prettier
[21:33:53] <zeeshan> :)
[21:34:15] <SpeedEvil> Not these ones I suspect :)
[21:34:37] <furrywolf> depends on how big you're going. if you're building a big roof, bridge, etc, trusses are much cheaper. if you're doing something small, dimensional lumber is probably cheaper.
[21:34:52] <SpeedEvil> It's not cheaper, but it may be easier.
[21:35:16] <furrywolf> dimensional lumber is cheaper than pre-fab i-joists, at least here.
[21:35:36] <furrywolf> (OSB glued between two grooved 2x4s)
[21:36:19] <furrywolf> bbl
[21:36:22] <SpeedEvil> here, for example, the best price I've found for 4*12" is $16/m
[21:36:35] <zeeshan> http://www.canadacomputers.com/product_info.php?cPath=22_1195_700_1103&item_id=059699
[21:36:37] <zeeshan> is this monitor any good
[21:36:38] <zeeshan> vs
[21:37:16] <furrywolf> I bought 2x12 for $1.30ish/ft last time. don't recall the exact price.
[21:37:30] <zeeshan> http://www.canadacomputers.com/product_info.php?cPath=22_1195_700_1103&item_id=073884
[21:37:38] <furrywolf> bbl
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[21:47:15] <mrsun> the laddereditor for linuxcnc realy needs some work ... would be nice if it was single window .. and alot easier to work with ;P
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[21:50:38] <Deejay> gn8
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[22:18:47] <unfy> zee: for what ? the stand on the more expensive one looks better. depends entirely on what you're doing with it etc etc etc
[22:19:58] <CaptHindsight> http://www.ars-inc.com/briquetter.aspx anyone know the price range on these?
[22:28:24] <unfy> damnit, i hate bidding on something on ebay... with the full intention of NOT winning... only to find out you won it ._.
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[22:40:34] <CaptHindsight> heh, bidding as a weapon?
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[22:51:45] <unfy> capt: it was something for $2 + $9 shipping. i didn't expect to win it - was just "meh, might be cute". i won it at $2.
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[22:52:38] <unfy> so now, i have a bunch of small bipolar 2 phase steppers ... some are 30deg, some are 90deg .... and... no clue what i'll do with them heh
[22:52:54] <unfy> prolly leave them in the box they'll come in .... grumble
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[22:55:31] <unfy> or maybe a bunch of "useless machine" boxes
[23:08:22] <CaptHindsight> unfy: are they really tiny? maybe 1/2" dia
[23:08:51] <CaptHindsight> used in cameras or similar
[23:09:19] <unfy> looks like 1.25" .... http://www.ebay.com/itm/291329010416?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
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[23:11:12] <CaptHindsight> http://www.ebay.com/itm/10PCS-2-Phase4-Wire-micro-stepper-motor-mini-DC-stepping-motor-With-small-screw-/251723001832 I wanted to try some of these
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[23:12:30] <unfy> i was eyeballing those too
[23:13:47] <unfy> they don't say what their step size is... dunno if it matters or not. but, at $5, i'll prolly buy a bag later heh
[23:27:52] <mrsun> motion.in-position
[23:27:53] <mrsun> (bit, out) TRUE if the machine is in position.
[23:27:55] <mrsun> this .. what is that ?
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[23:28:11] <mrsun> what is the in position of the machine ?
[23:28:27] <mrsun> is that during a move .. say G0 X200 and in-position will be true when that move is done ?
[23:29:47] <mrsun> ahh there
[23:29:50] <cradek> that's some great documentation
[23:29:52] <mrsun> TRUE if the machine is in position (ie, not currently moving towards the commanded position)
[23:30:03] <cradek> aha! that's better.
[23:30:47] <mrsun> that is the manual page .. the other was linuxcnc docs :P
[23:30:50] <mrsun> http://www.linuxcnc.org/docs/2.4/html/config_emc2hal.html
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[23:34:08] <mrsun> kinda handy in classic ladder it seems =) so that i know that my move is done before i go back to manual mode again =)
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