#linuxcnc | Logs for 2016-04-20

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[00:13:01] <andypugh> I don’t entirely understand why XHC would be lowering the machine accel globally.
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[00:16:02] <dgarr> there is an option used by LIB:xhc-hb04.tcl called [XHC_HB04_CONFIG] that multiplexes reduced accels in MANUAL mode if one also sets [APPLICATIONS]APP = xhc-hb04-accels -- its in the README for the sim configs for xhc-hb04
[00:16:51] <dgarr> [XHC_HB04_CONFIG]mpg_accels = v1 v2 v3 v4 (not percents, units/sec^2)
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[00:40:42] <zeeshan> https://www.youtube.com/watch?v=g2aH_6xlrUw
[00:40:45] <zeeshan> some more machining action
[00:41:38] <zeeshan> hm the sound is crackling
[00:41:39] <zeeshan> annoying
[00:44:24] <unfy> awesome \o/
[00:45:07] <unfy> hand write the gcode, or what cad/cam ?
[00:45:32] <zeeshan> mastercam
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[00:50:35] <unfy> way outside my price range heh :D
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[00:58:42] <zeeshan> get student version
[00:58:53] <unfy> would, but i aint no student heh
[00:59:06] <unfy> l'll be fiddling with blendercam as time goes on
[00:59:16] <zeeshan> get hsmexpress
[00:59:19] <zeeshan> dont waste time :P
[01:00:47] <Duc> you find a rotary table yet on ebay
[01:00:53] <zeeshan> no
[01:00:56] <zeeshan> havent been looking honestly
[01:01:00] <zeeshan> doubl;e working :[
[01:01:05] <unfy> discount .... discount_machinist ?
[01:01:19] <unfy> something like that... they have some relatively inexpensive rotary tables
[01:08:13] <Duc> ebay also has really nice tables for cheap
[01:08:16] <Duc> real cheap
[01:08:28] <unfy> what i listed was an ebay seller heh
[01:08:33] <unfy> prolly have a dot com store front too
[01:09:58] <Duc> ah
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[01:11:20] <Duc> looks like he just sells shars stuff
[01:11:46] <gregcnc> that is shars
[01:12:39] <Duc> but no 4th axis
[01:13:49] <gregcnc> stupid card reader 4.8MB/s transfer.. .. .. .. .. ..
[01:17:28] <gregcnc> zeeshan did you figure out what was happening with your vise?
[01:17:37] <zeeshan> yea
[01:17:38] <zeeshan> lol
[01:17:45] <zeeshan> it was moving the fixed jaw
[01:17:52] <zeeshan> i had to tighten the bolts holding it
[01:18:01] <gregcnc> nice
[01:18:58] <gregcnc> you'll be a pro soon enough
[01:19:18] <zeeshan> :P
[01:19:25] <gregcnc> 300 parts done?
[01:19:29] <zeeshan> nope
[01:19:32] <zeeshan> still running
[01:19:37] <zeeshan> its 500 now
[01:19:48] <zeeshan> im trying to offload some to my friend
[01:20:05] <zeeshan> i shoulda built a miteebite fixture plate
[01:21:10] <gregcnc> that would be nice
[01:21:45] <zeeshan> its crazy how much money they want for 6 of the pitbull clamps
[01:21:51] <zeeshan> its like 89$
[01:21:59] <Duc> yea they are pricey
[01:22:07] <Duc> for such a simple thing
[01:23:38] <gregcnc> yeah I've been trying to come up with something. It seems like pitbulls would be easy to make
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[01:25:33] <Duc> but the tolerance are very tight
[01:26:10] <zeeshan> \_____/
[01:26:13] <zeeshan> shape should work
[01:26:47] <zeeshan> its really about doing the math :P
[01:27:33] <zeeshan> the next job after this one im designing a new vape for that customer who i made a bunch for
[01:27:41] <zeeshan> that job ill definitely be using a fixture plate
[01:27:50] <zeeshan> i need to make at least 10 per run
[01:28:07] <zeeshan> but holding wood down is a bit challenging with low profile clamps
[01:29:37] <zeeshan> http://www.carrlane.com/catalog/index.cfm/27825071F0B221118070C1C513E111D081B0006280B1713050245221E0107070F1A3C3B2853564658
[01:29:41] <zeeshan> hmm i wonder how much these are
[01:30:28] <evil_ren> ha they cammed the countersink instead of the screwhead?
[01:30:58] <gregcnc> I want to make tiny double vises for my machine.
[01:31:00] <gregcnc> http://www.apexindustrialsupply.com/tiny-vise-edge-clamps-1/
[01:31:09] <evil_ren> the matrix plate clamps i got uses button head screws with the heads machines into a cam
[01:31:18] <evil_ren> but the ones you linked look neat
[01:31:19] <zeeshan> evil_ren: pic?
[01:31:24] <evil_ren> hmm
[01:31:37] <evil_ren> gimme min i try and find the matrix plate company
[01:32:07] <evil_ren> http://www.hightechsystemsllc.com/taig.html
[01:32:33] <evil_ren> wait wtf wheres the clamp hardware
[01:33:02] <evil_ren> http://www.hightechsystemsllc.com/work_holding.html
[01:33:48] <evil_ren> cam screws are on the bottom, they go into the clamp bars and washers above the screw
[01:34:00] <zeeshan> ah theyre cammed
[01:34:08] <zeeshan> i'd prolly rip the part out
[01:34:10] <zeeshan> with the cut im doing
[01:34:21] <evil_ren> year i think theyre normal stainless button head
[01:34:26] <evil_ren> *yeah
[01:34:30] <zeeshan> if they had serrated edges
[01:34:36] <zeeshan> i think they would work really well
[01:34:57] <evil_ren> its pretty light duty but ive done aluminum cuts with it
[01:36:37] <evil_ren> wow your link, they go down to #8-32
[01:37:58] <evil_ren> zeeshan: where to buy?
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[01:40:04] <zeeshan> the miteebite?
[01:40:19] <zeeshan> enco sells em
[01:40:36] <zeeshan> i think this could work:
[01:40:40] <evil_ren> tiny vise edge clamp, just saw gregcnc link
[01:40:50] <zeeshan> make a slot
[01:40:55] <zeeshan> slide in raw stock
[01:41:02] <zeeshan> put a block beside it with screws
[01:41:10] <evil_ren> ASK FOR LEAD TIME ON LINE
[01:41:19] <evil_ren> CARRLANE MINIMUM ORDER $ 100.00 USD
[01:41:21] <zeeshan> use set screws with pointed edges to hold
[01:42:46] <evil_ren> $6 for 10 pack of the mitebite things isnt bad looking
[01:43:07] <zeeshan> what?!
[01:43:08] <zeeshan> where?
[01:43:19] <evil_ren> i meant $6ea for a 10 pack
[01:43:28] <zeeshan> where??
[01:43:36] <zeeshan> for the 1/4"-20 version?
[01:44:09] <evil_ren> http://www.use-enco.com/CGI/INSRIT?PMAKA=619-1580
[01:44:21] <zeeshan> oh the old school version
[01:44:24] <evil_ren> no, #10-32, was shopping for my matrix plate
[01:44:33] <evil_ren> yeah not the blocks
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[02:46:16] <Tom_itx> zeeshan you can't reuse your vape fixture plate?
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[04:32:43] <zeeshan> Tom_itx: no, its a new design
[04:32:54] <zeeshan> and quantity required is more
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[06:33:29] <pink_vampire> morning
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[06:55:42] <Deejay> moin
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[09:09:42] <XXCoder> heys
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[09:13:34] <mase-tech> Hi Everybody
[09:19:42] <XXCoder> hey
[09:20:00] <mase-tech> :)
[09:21:54] <mase-tech> how u like this design of the CNC machine https://www.youtube.com/watch?v=JO3QQ-KKXPk&list=PLy11Xbe5BExJDRoHchAf9VeHPDFy2UxiU&index=19&nohtml5=False
[09:22:08] <mase-tech> I want to build a cheap CNC machine
[09:22:27] <mase-tech> to cut mainly wood and maybe Aluminium
[09:22:42] <mase-tech> plz take a look of the linear rail
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[09:24:02] <XXCoder> that machine design seems cut from cnc?
[09:24:15] <mase-tech> I think yes
[09:24:28] <XXCoder> you have another cnc to cut it?
[09:24:29] <mase-tech> but I can do it by Handwork
[09:24:34] <XXCoder> ahh cool
[09:24:39] <mase-tech> no unfortunatly not
[09:25:04] <mase-tech> I want the cnc to evolve
[09:25:08] <mase-tech> like feymann said
[09:25:08] <XXCoder> that looks ok for wood
[09:25:13] <XXCoder> alum dunno
[09:25:25] <mase-tech> look at the rails
[09:25:38] <XXCoder> yeah pretty decent one
[09:25:49] <mase-tech> He uses a perpendicular alu profile with v groove bearings
[09:25:50] <XXCoder> but if base flexs its still problemic
[09:26:13] <XXCoder> well it seems decent design
[09:26:27] <mase-tech> He has implements a lot of adjustment scews
[09:26:49] <mase-tech> this is something difficult for me when I construct it
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[09:27:00] <XXCoder> well
[09:27:08] <XXCoder> you could design a step down design
[09:27:11] <mase-tech> but the solution for the rails seems quite nice
[09:27:17] <XXCoder> cheap so you can make better cnc with it
[09:27:23] <mase-tech> yes
[09:27:33] <XXCoder> after its done, strip rails and so on from old one move to new
[09:27:34] <mase-tech> it is more a educational thing
[09:27:38] <mase-tech> i want to learn
[09:27:49] <mase-tech> but it would be nice if the machine is useful :D
[09:27:54] <XXCoder> ndeed
[09:28:02] <XXCoder> first version is good enough to make cnc machine
[09:28:09] <mase-tech> so I want to cut wood in the first step
[09:28:14] <XXCoder> then you has decent cnc made machine
[09:28:41] <XXCoder> suggest make box type cnc machine, using "boxes" on sides and top of gantry
[09:28:56] <XXCoder> very easy to build, and after that you can reuse wood
[09:29:11] <mase-tech> can u like an example
[09:29:24] <XXCoder> hmm lets see if I can find that big cnc router example
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[09:32:22] <XXCoder> closest example I can find https://static1.squarespace.com/static/55c6084ee4b0fa365685831c/55c61235e4b0f3937f4fe5d4/55c612fbe4b0f3937f5009d8/1439044687372/wpid-img_20130401_165859.jpg
[09:32:31] <XXCoder> difference is that sides and top is just boxes
[09:32:37] <XXCoder> very simple to make
[09:32:53] <XXCoder> its not like it will be perment heh
[09:34:10] <mase-tech> How did he made the rails ?
[09:34:35] <mase-tech> a I understand
[09:34:35] <XXCoder> hmm not sure looks like stuff from hardware store lol
[09:34:53] <XXCoder> you probably want to buy same rails you want to use in final cnc anyway
[09:35:26] <mase-tech> there is a difference in the 2 designs
[09:35:47] <mase-tech> mine has alu profiles with v groove bearings
[09:36:21] <mase-tech> your suggested has a steel profile (
[09:37:24] <mase-tech> I need to know how he did the rails
[09:37:30] <XXCoder> nah not design suggestion just showing how gantry is made, kind of similiar as design I was talking about
[09:37:40] <mase-tech> ok
[09:37:50] <XXCoder> hmm though I have made a design i ultimately did not use
[09:37:52] <XXCoder> hold on a sec
[09:39:49] <XXCoder> mase-tech: http://picpaste.com/pics/10427235_456337351177840_1505210135140562994_n-WznS6XNQ.1461145181.png
[09:39:56] <XXCoder> see the box design for gantry?
[09:40:10] <XXCoder> it should be very rigid
[09:40:16] <mase-tech> y
[09:40:18] <XXCoder> though design do have flaws
[09:40:19] <mase-tech> I like it
[09:40:23] <XXCoder> base is too weak
[09:40:50] <XXCoder> bottom distance is little too short, meaning gantry might be bit loose X wise
[09:41:33] <XXCoder> I never did design in the motor mounts lol
[09:41:41] <XXCoder> see black block? thats where ballscrews go
[09:42:15] <XXCoder> anyway
[09:42:25] <XXCoder> it should be good enough to cut cnc parts out of wood
[09:42:34] <XXCoder> then you can have really nice machine when done
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[09:43:37] <XXCoder> though if you the man on making stuff out of wood
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[09:43:58] <XXCoder> making a temp machine may be waste of time and resources.
[09:44:14] <mase-tech> temp machine ?
[09:44:26] <XXCoder> short term machine to make better machine out of
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[09:48:15] <mase-tech> I am searching bearing with a v groove
[09:48:25] <mase-tech> can u say something about
[09:48:42] <mase-tech> http://www.amazon.de/ZFE-4x13x6mm-Bearings-Vgroove-2~2-5mm/dp/B00QSXU346/ref=sr_1_1?ie=UTF8&qid=1461145712&sr=8-1&keywords=v+groove
[09:49:10] <XXCoder> never needed em so dunno
[09:49:13] <XXCoder> probably fine?
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[09:49:58] <mase-tech> 6 mm should be the inner diameter
[09:50:06] <mase-tech> right ?
[09:51:18] <XXCoder> dunno, not much of a engineer sadly
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[09:56:20] <_methods> archivist: going to an auction that would make you drool
[09:56:32] <XXCoder> _methods: hey no drool!
[09:56:40] <XXCoder> we had to clean danged room last time
[09:56:56] <_methods> http://www.bidspotter.com/en-us/auction-catalogues/www-maynards-com/catalogue-id-biditu10071
[09:57:12] <XXCoder> do you know how hard it is to clean theoretically infinite size room? ;)
[09:58:45] <XXCoder> geez some seriously specialized machines
[09:58:49] <XXCoder> like chamfering machine
[09:59:06] <_methods> gear cutting wonderland
[09:59:17] <XXCoder> yeah so many has "gear" in name
[09:59:28] <XXCoder> ay nonecludian gear cutter yet
[09:59:31] <XXCoder> *any
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[10:04:25] <archivist> _methods, send me one of each and the hobs :)
[10:04:38] <_methods> heheh thought you might some of those
[10:04:47] <_methods> want
[10:04:52] <mase-tech> you cu lator aligators
[10:05:02] <archivist> cant afford anything though
[10:05:18] <_methods> yeah the shipping might be a killer lol
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[10:05:38] <_methods> there are so many hobbers that they'll probably go for nothing
[10:06:48] <XXCoder> bid 100 on each one of em
[10:06:57] <XXCoder> you probably will win half of em though heh
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[10:10:50] <_methods> i might try to grab that little mikron hobber though
[10:13:07] <archivist> the one with no paint?
[10:13:23] <archivist> they came from the factory like that
[10:13:30] <XXCoder> no, one with less paint
[10:15:56] <_methods> they look about the same size so either one
[10:16:05] <_methods> looks like they would both fit in the garage
[10:16:18] <XXCoder> hopefully with usual stuff too
[10:16:50] <archivist> note the contents of pallet racking is separate!
[10:16:55] <_methods> http://www.bidspotter.com/en-us/auction-catalogues/www-maynards-com/catalogue-id-biditu10071/lot-5b77d43b-8a1b-4a04-a6a2-a5e50120ed11
[10:17:05] <_methods> that one is kinda small too looks like
[10:17:16] <XXCoder> barrel sized
[10:17:23] <XXCoder> approx anyway, compare with barrel there
[10:18:43] <archivist> my hobbing machine is 1" max that is a bit bigger not a lot
[10:19:14] <_methods> yeah i think that one is 1.25" max
[10:19:25] <_methods> 26 max dp
[10:19:36] <_methods> that kinda sux
[10:19:49] <_methods> would be nice to get at least 32 dp
[10:20:14] <archivist> lot 491 work arbours, lazy auctioneers not joining tooling to machines
[10:20:35] <_methods> yeah
[10:20:38] <_methods> they don't care
[10:20:56] <_methods> oh wow they got a 40,000 lb and 30,000 lb forklift for sale
[10:21:03] <_methods> be fun to watch the riggers fight over that
[10:22:11] <archivist> http://www.bidspotter.com/en-us/auction-catalogues/www-maynards-com/catalogue-id-biditu10071/lot-5b4e620d-459e-47f5-9389-a5e50120ed11
[10:22:24] <archivist> there is one more your size probably
[10:22:33] <_methods> which lot #
[10:23:28] <_methods> ah
[10:23:30] <_methods> 517c
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[10:23:52] <_methods> ah nice spot
[10:24:34] <archivist> but then you get to the 550's and up all the tooling, change wheels
[10:24:41] <_methods> yeah
[10:24:56] <archivist> but mine came without change wheels
[10:25:07] <archivist> linuxcnc to the rescue
[10:26:53] <_methods> probably be easier for me to find parts for that one
[10:28:25] <_methods> probably not as many mikrons on this side of the pond
[10:28:32] <_methods> plenty of barber colman though
[10:28:56] <archivist> just add an encoder to the spindle at the change wheel area input (cutter spindle), and a drive into the blank spindle from the output
[10:29:36] <archivist> I tried getting the manual for mine but there was a paywall for a scanned copy
[10:30:26] <archivist> going to need a large truck to carry away the winnings :)
[10:30:27] <_methods> well i wouldn't feel bad about cutting up a mikron
[10:30:42] <_methods> however the barber-colman i couldn't bring myself to deface
[10:30:46] <archivist> I cut nothing to make it cnc
[10:30:57] <_methods> oh really?
[10:31:31] <archivist> just needs shaft couplings to the gear shaft ends
[10:32:02] <archivist> I used the door hinge threaded holes for the bracket mounting
[10:32:05] <_methods> ah so you just deal with the backlash in the existing systems
[10:32:33] <archivist> unidirectional, who cares about backlash :)
[10:33:05] <_methods> this is true
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[10:36:38] <Ghost12> hello
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[10:37:48] <archivist> hmm a whispering ghost
[10:38:49] <XXCoder> ooooh
[10:40:42] <_methods> ghost in the machine
[10:41:03] <XXCoder> ghost in the ghost machine in the machine
[10:45:11] <_methods> lol the governor of utah just declared a national emergency
[10:45:14] <_methods> porn
[10:46:06] <_methods> you can have 6 wives but you can't have porn
[10:46:09] <_methods> gotta love utah
[10:46:29] <_methods> i guess if you have 6 wives the last thing you want to look at is more cooter
[10:48:15] <XXCoder> 6 wives if youre looking at porn youre bored of life
[10:48:50] <XXCoder> almost always people assume porn is being browsed by males though
[10:49:03] <XXCoder> it may be those 6 wives bored of same man and browsing porn heh
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[11:13:29] <pink_vampire> hi
[11:13:41] <XXCoder> hey pink_vampire
[11:14:02] <pink_vampire> any idea for mini avionics connector that can fit in 4-5 mm hole?
[11:14:06] <pink_vampire> hi XXCoder!
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[12:33:17] <jdh> not avionic but 00 lemo might fit
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[13:36:31] <gregcnc> _methods www.ebay.com/itm/371514977634 I guess it was more than $8 but it works OK. I'm trying to spray straight oil (shell iso vg32) so it needs some more adjustment.
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[14:11:51] <CaptHindsight> 2.Processing the coolant can save more than 80%, the cooling effect is no less than the conventional water-cooled.
[14:12:15] <CaptHindsight> 1. Clean the liquid shall be used.
[14:12:21] <CaptHindsight> I'm sold
[14:12:28] <gregcnc> it's a good think they listed it in home and garden
[14:13:36] <CaptHindsight> I like the quick re;ease fitting on the valves, I'll have to look for those
[14:13:59] <gregcnc> they're common
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[14:14:18] <CaptHindsight> the valves?
[14:15:03] <lair82> pcw_home, you floating around yet this morning?
[14:15:27] <gregcnc> yes
[14:15:50] <gregcnc> those on there aren't great though.
[14:16:08] <CaptHindsight> close enough types
[14:16:14] <pcw_home> Yeah
[14:16:16] <CaptHindsight> and don't adjust them often
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[14:17:04] <gregcnc> seems diffucult to make a fine adjustment
[14:18:35] <lair82> Who was it that you said had a way to automate the "sudo ethtool -C ethN rx-usecs 0" command on startup of the PC?
[14:18:43] <CaptHindsight> http://www.channypicture.com/pic/UploadFile/P0/SKU241667/BD23C893432626CA1645D2369AC8C8D29D2301C799D2CECACB99D24BCB269DC843C86673129EC79B03A0C9.jpg
[14:20:41] <gregcnc> http://www.pisco.com/category.aspx?catid=5
[14:21:15] <evil_ren> lair82: look up init scripts for your distro?
[14:22:22] <gregcnc> https://www.youtube.com/watch?v=UrtnIImGipg
[14:22:41] <gregcnc> some kind of turf war?
[14:23:49] <pcw_home> lair82: mozmck
[14:23:55] <CaptHindsight> http://www.ebay.com/itm/8mm-Tube-x-1-8-Push-In-Fittings-Air-Flow-Speed-Control-Elbow-Tube-Hose-Connect-/262012642426
[14:25:07] <gregcnc> some of the 6mm fitting in the machine were marked 6mm/ 1/4"
[14:25:31] <CaptHindsight> I hadn't seen the low cost plastic ChinaCo versions
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[14:25:50] <gregcnc> the name brands are pricey
[14:26:26] <pcw_home> lai82: also
[14:26:28] <pcw_home> http://www.ceus-now.com/how-to-automate-ethtool/
[14:27:50] <gregcnc> i guess i confused spec sheets and bought an metal-metal sealing solenoid valve. so it leaks when the mister is off. It will cycle the puny compressor every half hour
[14:27:59] <pcw_home> ( the bottom section about changing etc/network/interface )
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[14:34:56] <R2E4> Anyone have JT's shop url?
[14:35:37] <gregcnc> http://gnipsel.com/
[14:35:42] <pcw_home> for ubuntu persistant ethool settings:
[14:35:44] <pcw_home> https://help.ubuntu.com/lts/serverguide/network-configuration.html
[14:36:55] <CaptHindsight> gregcnc: for $15 it's worth it for the block alone, let alone all the fittings you get
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[14:37:54] <gregcnc> there are $8 versions with one fitting and I think the nozzle tip makes the other adjustment
[14:38:18] <gregcnc> I'd love to have a acculube or unimist, but they cost half as much as the machine
[14:38:51] <CaptHindsight> Chinamist
[14:39:11] <CaptHindsight> they should embrace it
[14:39:22] <gregcnc> those use metering pumps for oil flow
[14:40:05] <gregcnc> I glued some magnets to the back, i should have used hdd magnets
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[14:41:45] <CaptHindsight> but they still having a corny westernish sounding name is better like Krapco, Kert, etc.
[14:42:00] <CaptHindsight> +still think
[14:43:13] <gregcnc> "I just got a Kert vise", "yeah those Kurts are nice"
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[14:43:34] <R2E4> thats his website, I am looking for his online store to purchase mesa cards
[14:44:00] <R2E4> I think its in the forum, let me look
[14:44:40] <gregcnc> measus.com
[14:44:49] <gregcnc> mesaus.com
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[14:47:10] <gregcnc> a pretty big DIY gantry machine https://youtu.be/0ZGvMZky06c?t=24s
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[14:59:06] <pcw_home> Concrete?
[14:59:13] <gregcnc> looks like
[15:02:02] <FinboySlick> That one way to make a gantry setup rigid.
[15:02:49] <_methods> gregcnc: so it's at least functional?
[15:02:59] <gregcnc> sure
[15:04:01] <_methods> coolio
[15:04:13] <_methods> i guess i'll get one to try out
[15:04:53] <gregcnc> the loc lines are rigid, the venturi nozzle looks ok, with lower viscosity fluid it's probably easier to adjust flow
[15:05:07] <_methods> i have some diff loc lines to use
[15:05:26] <_methods> hell by time i buy those fittings and make the manifold block i'd be over $15
[15:05:30] <_methods> hard to beat that
[15:05:52] <gregcnc> i mean they aren't loose
[15:06:16] <_methods> a lot cheaper than a coolmist
[15:07:02] <_methods> http://www.ebay.com/itm/Mist-Coolant-Lubrication-Spray-System-For-8mm-Air-Pipe-CNC-Lathe-Mill-Drill-A-/321746289757?hash=item4ae992c45d:g:4tYAAOSwEeFVSGRe
[15:07:07] <_methods> there's your $8 one lol
[15:09:41] <_methods> i got the $15 one you linked to though
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[15:09:52] <_methods> i like the adjustable fittings on the top better
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[15:12:08] <gregcnc> it should do the job
[15:12:24] <lair82> So I should be able to add "post-up /sbin/ethtool -C eth1 rx-usecs 0" under the "iface eth1 inet dhcp" heading and it should work?
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[15:16:30] <_methods> yeah i'm not doing any "real" machining in the garage so basically anything is better than the nothing i'm using now
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[15:28:45] <CaptHindsight> 5) Even the super-hard alloy precision machining the workpiece can achieve a smooth surface
[15:28:59] <gregcnc> how can you argue with that?
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[15:30:13] <_methods> sounds like a sentence from someone in here
[15:31:13] <gregcnc> zeeshan needs to build one of these https://www.youtube.com/watch?v=mxmmlR0jaXY
[15:32:43] <_methods> that's quite a setup
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[15:47:48] <JT-Shop> and I thought the tool changer on the 308 was slow
[15:49:01] <gregcnc> you'd think with how fast the arm pushes the tool under the spindle the carousel could spin faster
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[16:00:16] <lair82> pcw_home, I should be able to add "post-up /sbin/ethtool -C eth1 rx-usecs 0" under the "iface eth1 inet dhcp" heading and it potentially should work?
[16:00:32] <CaptHindsight> _methods: nah it would be the same sentence, but a question and without the question mark :)
[16:03:34] <CaptHindsight> https://www.youtube.com/watch?v=Oh9eCupbsso Linuxcnc-5axis- 2 with duelin rotary tables
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[16:23:40] * JT-Shop wonders what lair82 is up to?
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[16:40:59] <lair82> JT-Shop, I'm sure you know by now, I'm always up to something off the wall ;)
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[16:49:16] <JT-Shop> lol
[16:51:00] <JT-Shop> you using a 7i92 or something like that?
[16:51:42] <lair82> 7i80
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[16:52:17] <lair82> And unless I run that ethtool command, I get random RT delay faults
[16:52:41] <JT-Shop> ouch
[16:52:58] <lair82> yep
[16:53:45] <JT-Shop> now I'm up in the air about ordering a h97 pro4
[16:54:06] <lair82> I'm using a Intel G3258 CPU, what pcw is using/recommended.
[16:54:28] <JT-Shop> the 7i92 has been running for 2 days now on the j1900 with no errors
[16:54:43] <lair82> If you run that ethtool command, it is beautiful.
[16:55:07] <pcw_home> if you have intel MACs you need to set the IRQ coalescing off
[16:55:08] <pcw_home> (The J1900 has Realtek MACs)
[16:55:27] <pcw_home> (so doesnt have that option)
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[16:56:19] <lair82> And I may have something not set exactly right, and that may be causing issues as well.
[16:56:59] <JT-Shop> looking at http://www.newegg.com/Product/Product.aspx?Item=N82E16813157512&cm_re=ASRock_H97M_Pro4_LGA_1150-_-13-157-512-_-Product and it says LAN Chipset Intel I218V
[16:58:31] <JT-Shop> and the j1900 LAN Chipset Realtek
[16:59:40] <pcw_home> Yeah the Intel driver is quite fancy and has many settings (and its IRQ defaults are bad for real time)
[17:01:29] <pcw_home> basically the default setting says when you get a RX packet interrupt, dont tell the boss but
[17:01:30] <pcw_home> wait around twiddling your thumbs for 100 usec or so in case another packet is comming
[17:01:37] -!- maxcnc [maxcnc!~chatzilla@ip5f583fd2.dynamic.kabel-deutschland.de] has joined #linuxcnc
[17:01:38] <maxcnc> hi
[17:02:06] <lair82> Thats the same board I'm using on two machining centers
[17:02:51] <lair82> pcw_home, is that ethtool command what turns off the IRQ coalescing?
[17:03:09] <JT-Shop> what processor are you using?
[17:03:24] <lair82> Intel G3258
[17:03:38] <pcw_home> It has the best Preempt-RT latency that Ive seen
[17:04:00] <JT-Shop> that's not too bad $70
[17:04:02] <pcw_home> sudo ethtool -C ethN rx-usecs 0
[17:04:49] <pcw_home> I think any of the G3xxx Pentiums will work similarly
[17:04:50] <maxcnc> JT-Shop: is the j1900 up ?
[17:06:11] <JT-Shop> yes been up for a day or so running a 7i92
[17:07:03] <maxcnc> cool steppers or servo
[17:07:43] <JT-Shop> nothing at the moment
[17:09:26] <maxcnc> ok
[17:09:56] <JT-Shop> soon as I get some 7i78's in stock I'm going to set up a gantry and learn the new gantry component
[17:09:58] <maxcnc> woudt be god to test a 7i76E against a 7i92H and a 7i76
[17:10:37] <maxcnc> oh is there a new one starting from Version ?
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[17:11:30] <pcw_home> all the Ethernet cards should be identical performance wise (they have identical clocks and code)
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[17:12:37] <JT-Shop> 2.7 has the gantry component
[17:15:24] <pcw_home> I noticed there's an example of a hal file using the gantry comp on the forum
[17:16:03] <JT-Shop> do you recall where it was?
[17:16:52] <pcw_home> https://forum.linuxcnc.org/forum/47-hal-examples/30818-gantry-hal-example#73464
[17:17:14] <JT-Shop> thanks
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[17:18:34] <JT-Shop> is there any advantage to run steppers with a pid and velocity?
[17:19:26] <pcw_home> well... its a bit complicated
[17:20:10] <JT-Shop> the advantage or setting it up?
[17:20:27] <pcw_home> The built in position mode driver does not deal with latency very well (it basically can go crazy)
[17:22:16] <maxcnc> http://linuxcnc.org/docs/html/man/man9/gantry.9.html
[17:22:23] <pcw_home> so when I started with Ethernet (which may have ~300 usec Ethernet latency spikes on a slow machine)
[17:22:25] <pcw_home> I found I could get much better performance by using PID feedback and stepgens set to velocity mode
[17:23:10] <JT-Shop> so it is for the Ethernet cards, the PCI/PCIe cards don't need it?
[17:23:20] <JT-Shop> maxcnc: yes that is it
[17:23:33] <pcw_home> But after the DPLL was added the PID is less needed unless you want the absolute best step generation
[17:25:03] <JT-Shop> thanks
[17:25:34] <maxcnc> the home is only performed if all homing is complete as i understand
[17:25:44] <pcw_home> Even on PCI/PCIE you need to work around the driver going crazy by limiting the stepgen_maxaccel number (which should not be required)
[17:25:45] <maxcnc> as i only can tilt 4mm
[17:26:25] <maxcnc> i will try soon
[17:27:55] <maxcnc> im off Gn8 tomorrow will be the best day in germany so far even summer day temps are expected
[17:27:59] <JT-Shop> as I understand the gantry component both axes home at the same time when one home switch trips that side stops and the other side continues
[17:28:05] <maxcnc> but snow back on sunday
[17:29:17] <maxcnc> JT-Shop: thats find but do i need to put the switch in 0.01 position to home or can i make diferent home start points
[17:29:55] <JT-Shop> I don't understand the question
[17:30:01] <maxcnc> lets say x1 is Zero and y2 homeswich is 0.26mm off
[17:30:13] <maxcnc> is this corrected
[17:30:29] <JT-Shop> ah switches not exactly the same place
[17:30:39] <maxcnc> i think no so i need to get the homeswitches triggering at the real home
[17:31:16] <maxcnc> figgering out the pos is qite a challange on not visibel swiches
[17:31:59] <maxcnc> its also good thing to get more corner straigtness
[17:32:06] <maxcnc> 90deg XY
[17:32:19] <JT-Shop> I don't see any kind of offset that can be set so the switch point needs to be even
[17:32:26] <maxcnc> as yiou can offset the X2
[17:34:39] <maxcnc> Workflow : X moving towards swiches X1orX2 triggers stop that motor move the other motor till it triggers move X1 to the ofset point then HOME
[17:35:31] <maxcnc> with Home i mean set the X to the Homeofset then move the X axis to Home
[17:36:05] <maxcnc> with home_final_vel
[17:36:26] <maxcnc> woudt be a real good workflow
[17:37:15] <maxcnc> on gantry componet it coudt also bee offset in both X1 and X2 so you can correct the Whole system
[17:37:45] <maxcnc> as your frame is like we saw some in Brazil and welding freeks did
[17:38:04] <maxcnc> im off Gn8
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[17:54:50] <mase-tech> Hey hi People
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[17:57:10] <mase-tech> plz have a look on this cnc https://www.youtube.com/watch?v=-pdvw_529IQ&index=25&list=PLy11Xbe5BExJDRoHchAf9VeHPDFy2UxiU
[17:57:26] <mase-tech> I want to build a similar one
[17:57:44] <mase-tech> for wood and MAYBE aluminium
[17:58:16] <mase-tech> I like this design because he uses alu profiles for rails
[17:58:48] <mase-tech> and v groove bearings this make the cnc cheap
[18:04:28] * JT-Shop can't click on videos
[18:04:51] <mase-tech> ?
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[18:07:32] <JT-Shop> very limited bandwidth
[18:08:49] <mase-tech> In termas of materials ?
[18:09:01] <mase-tech> Or do u mean the size ?
[18:09:07] <Tensaiteki> JT, the videos show a typical made-of-plywood gantry router with ACME screws, V-bearings on aluminum angle, and a regular wood-router spindle
[18:10:12] <Tensaiteki> I suspect the spindle will go too fast for cutting aluminum dry, and you can't really use coolant if your machine is made of wood
[18:10:50] <Tensaiteki> also, hardened steel bearings will wear out the aluminum rails very quickly
[18:12:28] <mase-tech> Tensaiteki: he uses the aluprofile in diffrent way for rail
[18:12:39] <JT-Shop> I see
[18:13:11] <mase-tech> So there will be more wear out in this way
[18:13:42] <mase-tech> I like the idea how he did
[18:13:55] <mase-tech> but we could change the materials
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[18:15:29] <mase-tech> the v groove bearings i found are these
[18:15:57] <mase-tech> I don t know if they are good enough
[18:16:20] <mase-tech> the ID of the bearings are small therefor I could use more
[18:16:49] <mase-tech> and instead of the alu profile I could use a steel profil
[18:17:12] <mase-tech> or brass
[18:17:25] <mase-tech> but I must search there
[18:18:01] <mase-tech> for motor I am looking for nema 17
[18:18:21] <mase-tech> there I need a board and the driver
[18:19:22] <Tensaiteki> well, any time you have an inverted V shape riding on a square-ish cross section, you will have rapid wear.
[18:20:08] <Tensaiteki> using steel angle will wear slower, but inexpensive angle will be hot-rolled and very rough/imprecise
[18:21:01] <mase-tech> Yeah I would like http://www.amazon.de/Ten-high-Stimmzug-Handtuchhalter-St%C2%A8%C2%B9cke-Kugellager/dp/B00UMZDESS/ref=sr_1_11?ie=UTF8&qid=1461176432&sr=8-11&keywords=linearf%C3%BChrung
[18:21:05] <mase-tech> this more
[18:21:11] <mase-tech> but it is expensive
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[18:22:29] <mase-tech> the first cnc will be in wood
[18:22:48] <mase-tech> the secound one will be in concrete
[18:23:00] <mase-tech> with better rails
[18:23:30] <mase-tech> I want to mill the form for the concrete with the wood cnc
[18:24:16] <CaptHindsight> nema17 sounds small and weak, unless this is for trimming paper and soft materials
[18:24:27] <mase-tech> wood
[18:24:36] <mase-tech> and maybe alu
[18:24:45] <Tensaiteki> my first couple of machines were MDF with gas-pipe "rails." I used them to machine foam patterns for aluminum casting the parts for my later machine
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[18:25:33] <mase-tech> I think I will take a similar path
[18:25:35] <mase-tech> Tensaiteki:
[18:25:39] <Tensaiteki> yeah, I'm with the Capt, 17s are too small for anything but 3d printers
[18:25:40] <CaptHindsight> somebody posted a machine like that for sale that didn't sell
[18:26:46] <CaptHindsight> the lowest cost, rigid, and accurate solution is to use polymer granite
[18:26:53] <mase-tech> Tensaiteki: do u have a picture of the rail with the gas pipe ?
[18:27:24] <CaptHindsight> but it's only going to work as well as you are skilled at making and aligning things
[18:27:51] <mase-tech> I am skilled
[18:28:09] <CaptHindsight> do you have access to a surface plate?
[18:28:13] <mase-tech> =)
[18:28:35] <CaptHindsight> do you have access to a laser and some mirrors?
[18:29:19] <mase-tech> surface plate like a work bench ?
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[18:29:33] <lair82> JT-Shop, I implemented the ethtool command into the /etc/network/interfaces file, and it automatically applies that command on boot, so now I shouldn't have any more erroneous RT faults.
[18:29:36] <mase-tech> laser for measuring the distance ?
[18:29:59] <CaptHindsight> alignment
[18:30:19] <mase-tech> no
[18:30:38] <CaptHindsight> https://www.youtube.com/watch?v=fDiEi2bOXgs
[18:31:38] <gregcnc> boy that one soundsd pretty nice
[18:31:51] <mase-tech> nice machine
[18:32:08] <mase-tech> But I dont like the design
[18:32:34] <CaptHindsight> what don't you like about it?
[18:32:59] <gregcnc> moving table takes up more space but more rigid overall
[18:34:25] <mase-tech> For this more profesional attempt of a cnc I would do it like https://www.youtube.com/watch?v=qlj41jGXuHk
[18:34:33] <gregcnc> If I build one it will be like this 1.5 meter ball screw and linear rails have been in the corner for far too long.
[18:35:03] <CaptHindsight> mase-tech: so go that route
[18:35:47] <CaptHindsight> the 2nd mill casting job wasn't the best
[18:36:16] <mase-tech> I did already look the videos from tobias merten
[18:36:30] <mase-tech> And there reasearch for concrete
[18:37:06] <mase-tech> So but this doesn t help me noe
[18:37:16] <mase-tech> I need to build a simple cnc
[18:37:18] <mase-tech> cheap
[18:37:54] <CaptHindsight> polymer granite is cheap
[18:38:17] <CaptHindsight> 9% polymer, 91% granite
[18:39:13] <mase-tech> ok
[18:39:41] <mase-tech> So you recoomand me to make a polymer granite cnc ?
[18:39:49] <Jymmm> They (tile/countertop stores) call it "Cultured Granite"
[18:39:55] <mase-tech> recommand
[18:39:58] <CaptHindsight> the one by Roman uses concrete that in the USA is ~$20 a 20Kg bag
[18:40:34] <CaptHindsight> mase-tech: if you can make square forms and align everything
[18:42:26] <Tensaiteki> mase-tech: I don't have any pictures, but the top-right of this diagram (not my site) shows the cross section of what I did: http://www.crankorgan.com/slidesdate.JPG
[18:43:06] <CaptHindsight> a wooden router is not good for cutting metals
[18:44:20] <CaptHindsight> wood vs polymer granite, it's comparing a 100um accuracy machine to a 1um
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[18:46:16] <CaptHindsight> plywood forms for a router shouldn't cost more than a single sheet of sanded on one side
[18:46:41] <gregcnc> leveling the rails is what scares me about building a machine like that. It looks like Roman used screws in the concrete to support the rails?
[18:46:58] <gregcnc> well any big machine
[18:48:01] <CaptHindsight> cheap laser
[18:48:17] <gregcnc> Then he grouted the rails in place?
[18:48:39] <CaptHindsight> I didn't look at his details
[18:49:04] <CaptHindsight> depends on how many anchors
[18:49:25] <CaptHindsight> but you can grout it in after alignment
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[18:50:11] <CaptHindsight> depends on how good a job you did casting as well
[18:51:25] <CaptHindsight> there's a several year thread about polymer granite on cnczone
[18:51:51] <gregcnc> http://www.ebay.com/itm/262393611027
[18:51:55] <CaptHindsight> http://www.cnczone.com/forums/epoxy-granite/30155-epoxy-granite-machine-bases-polymer-concrete-frame.html
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[18:52:09] <CaptHindsight> buy it
[18:52:39] <miss0r> ... transfering a 272kB g-code at 2400bps is a pain the the hole
[18:52:49] <gregcnc> lack of space prevent me from impulse buys like that
[18:53:11] <miss0r> buy what ?
[18:53:30] <CaptHindsight> granite base and frame on ebay ^^^
[18:54:04] <lair82> You have to love HGR industrial, they always have some pretty cool stuff, at really good deals.
[18:54:09] <miss0r> uhh... I am considering getting on my self... I'm just not sure I can fit it in anywhere
[18:54:24] <miss0r> the misses does not want that stuff in the living room. and I am whipped
[18:55:00] <CaptHindsight> there comes a point where you have to decide
[18:55:08] <CaptHindsight> happy or marriage
[18:55:19] <lair82> Walking through that place, it's like a little kid in free candy store, you spend hours , and are giddy with anxiety the whole time
[18:57:30] <Tom_itx> CaptHindsight, you speak from experience :)
[19:01:39] <mase-tech> CaptHindsight: I am not married yet so I have a choice :d
[19:01:48] <mase-tech> :D
[19:02:30] <miss0r> My wife makes me happy
[19:02:30] * miss0r looks over his shoulder expenting the wife to be right behind him
[19:02:42] <miss0r> close call...
[19:03:12] <mase-tech> :D
[19:04:04] <miss0r> wait till you can put a kid in the mix... that takes what little time the wife spares you
[19:04:57] <miss0r> My shop hours usualy start when i've put them to bed. or, like today, she is out'a'town visiting her parents with our son... What a marvelous day this is
[19:05:25] <miss0r> thats is when I get shit done... and BOOM - finding myself just talking to you guys.
[19:06:29] <miss0r> FUCK... it seems the mill doesn't have 300kb memory as I thought
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[19:06:35] <mase-tech> Omg my girlfriend is calling I must seperate myself from PC - afk
[19:08:13] <miss0r> ... 80KB is what I have at my disposal... this will be harder than I thought
[19:09:27] <miss0r> *sigh* this means I will have to reconsider LinuxCNC again...
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[19:11:10] <Jymmm> 80KB ?
[19:11:23] <Jymmm> ram?
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[19:14:37] <miss0r> g-code storage
[19:14:49] <miss0r> some sort of RAM, yes
[19:14:54] <pink_vampire|2> what do you think about https://www.homedepot.ca/en/home/p.silent-46-gal-portable-electric-air-compressor.1000826928.html
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[19:24:04] <gregcnc> http://www.homedepot.com/p/California-Air-Tools-5-5-Gal-1-0-HP-Ultra-Quiet-and-Oil-Free-Air-Compressor-5510SE/205602927
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[19:31:22] <_methods> air free air compressor
[19:32:04] <Jymmm> https://www.youtube.com/watch?v=ZZryRKHrCKc
[19:32:19] <Jymmm> California air tools Ultra quiet air compressor with decibel meter test
[19:32:39] <Jymmm> Air and compressor free air compressor
[19:33:34] <gregcnc> http://www.menards.com/main/tools-hardware/power-tools-accessories/air-compressors-pneumatic-tools-accessories/air-compressors/california-air-tools-5510se-ultra-quiet-oil-free-air-compressor/p-1444426137591-c-12910.htm?tid=-798003080131086152
[19:33:37] <neckro23> so... canned air?
[19:35:20] <gregcnc> ooh the local menards has them
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[19:54:01] <_methods> silent but deadly
[19:54:55] <archivist> I want one with a bit more flow for the cmm
[19:55:28] <Jymmm> Um, not... Shipping: Calculated During Checkout
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[19:56:46] <Jymmm> $151 + $95 shipping (or whatever)
[19:58:02] <Jymmm> More than likely... $151 + $150 shipping =)
[19:58:44] <XXCoder> noisy but safe
[20:00:10] <_methods> loud pipes save lives
[20:01:02] <Jymmm> It's a cmpressor, not a harley
[20:01:42] <_methods> oh gawd
[20:02:13] <_methods> you're right
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[20:03:20] <jdh> and oilless
[20:03:32] <_methods> definitely not a harley
[20:03:51] <XXCoder> repair each 10 miles? heh
[20:03:55] <_methods> well techincally when all your oil leaks out i guess that could apply to harley
[20:03:57] <Jymmm> Well, if you consider the inherant dripping harley, then it could be
[20:04:02] <_methods> hahah
[20:07:14] <Jymmm> _methods: sick and twisted minds think alike!
[20:07:24] <_methods> indeed heheh
[20:07:28] <Tom_itx> sick bastards
[20:07:40] <Jymmm> Tom_itx: Yeah, but you love us =)
[20:07:46] <Tom_itx> :)
[20:08:17] <_methods> https://www.youtube.com/watch?v=0pyMgtLNE4Q
[20:08:20] <_methods> dog washing machine
[20:08:53] <_methods> i hope that's what it is at least
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[20:09:25] <Deejay> gn8
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[20:10:24] <Tom_itx> i thought that's what the lake was for
[20:10:50] <_methods> probably easier
[20:11:45] <Tom_itx> gotta go listen to a boreing lecture here in a bit
[20:11:58] <_methods> what class is this for?
[20:12:16] <Tom_itx> catia assembly
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[20:12:37] <Tom_itx> i'm done but he's about 2/3 thru the book
[20:12:43] <_methods> hehe
[20:13:04] <_methods> i guess you get to be the assistant now for the rest of the class
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[20:16:54] <Tom_itx> may start taking one of my kid's books and start learning prismatic machining
[20:17:05] <Tom_itx> he's taking surface machining this time
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[20:17:29] <pink_vampire|2> _methods: what do you mean by "deadly"??
[20:18:36] <evil_ren> smells bad
[20:19:20] <pink_vampire|2> It's not a good compressor?
[20:19:37] <evil_ren> its a saying about farts
[20:20:18] <XXCoder> yeah
[20:20:31] <XXCoder> no noise but smells so bad heh
[20:20:36] <XXCoder> glad both dont affect me
[20:22:51] <_methods> wtf is prismatic machining
[20:22:58] <XXCoder> magic
[20:23:18] <_methods> oh is that catia words for trochoidal tool paths?
[20:23:29] <neckro23> that's when you watch it through a kaleidoscope so it looks cool
[20:23:34] <_methods> lol
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[20:24:21] <_methods> oh jeebus that's just what catia calls their cam package lol
[20:27:33] <Tom_itx> who knows
[20:27:56] <Tom_itx> may check in at the lab if i get bored
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[20:39:02] <CaptHindsight> maybe silent but too sexist
[20:39:16] <CaptHindsight> https://www.homedepot.ca/en/home/p.silent-46-gal-portable-electric-air-compressor.1000826928.html
[20:40:04] <XXCoder> how is it sexist?
[20:41:32] <CaptHindsight> the dual tanks, nipples, gauges all can possible be offensive to some
[20:43:35] <CaptHindsight> https://www.homedepot.ca/en/home/p.heavy-duty-165-psi-pancake-compressor.1000848535.html less offensive
[20:54:37] <evil_ren> hmm
[20:55:10] <evil_ren> guys how hard is it to convert a 3 axis mill configuration to a 3 axis lathe configuration?
[20:55:12] <Jymmm> CaptHindsight: Since when are you so PC?
[20:55:27] <Jymmm> evil_ren: a file?
[20:55:35] <evil_ren> right?
[20:55:49] <XXCoder> evil_ren: can 0put stock on spindle and use table as tool
[20:56:01] <evil_ren> i never really considered it, but doing the lathe trick on a mill with turning visuals in axis would be pretty neat
[20:56:03] <XXCoder> mounting tools directly on table
[20:56:11] <evil_ren> xxcoder: right thats what i was thinking
[20:56:35] <evil_ren> i was just going to kind of hack the gcode but then i realized i can prob setup a turning config for it
[20:56:36] <XXCoder> only flaw is that it cannot be secured both ends like on real lathe
[20:56:50] <evil_ren> well not easily at least
[20:57:06] <XXCoder> I dont see how but then you know more :)
[20:57:06] <evil_ren> something with fancy bearings might work
[20:57:11] <XXCoder> well time to go to daily grind
[20:57:16] <XXCoder> laters
[20:57:36] <evil_ren> just have the dead center on some sort of sliding setup
[20:57:44] <CaptHindsight> Jymmm: whadduhyah talkin about? you doody head
[20:57:47] <evil_ren> i dont think it would be very easy to do well, heh
[20:58:20] <Jymmm> CaptHindsight: less offensive compressor?
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[21:00:18] <CaptHindsight> Jymmm: I'm exercising my right to be offended by anything
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[21:00:59] * Jymmm moons CaptHindsight
[21:00:59] <zq> hello all
[21:01:49] <Jymmm> CaptHindsight: I'm an Equal Opportunity Offender... I don't care who you are, I'll offend ya!
[21:02:04] <CaptHindsight> doesn't bother me
[21:02:19] <zq> what's the easiest way to inform linuxcnc that motion.digital-out-jkl should be set to 0 upon estop, for a given jkl?
[21:02:35] <zq> short of messing with motion.c
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[21:03:05] <zq> ah, hal comp
[21:03:15] <PCW> gate them in hal
[21:03:19] <zq> yeah, and gate
[21:04:22] <zq> well no
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[21:21:14] <zq> PCW: that wouldn't work, because as soon as estop is released, the output would shoot back to one
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[21:23:22] <PCW> They are not cleared by motion on estop/fault/whatever?
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[21:27:10] <zq> nah
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[21:27:26] <zq> they wouldn't be, anyway
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[21:27:49] <zq> motmod has no way of knowing that "0" corresponds to off
[21:28:03] <zq> just gonna write my own comp for this
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[21:30:04] <PCW> you could use an edge of a digital pin to re-enable the outputs
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[21:30:58] <PCW> so you have to set it low and then high in the beginning gcode to enable the other outputs
[21:33:19] <unfy> bought angle iron to do the .... whatever to keep the lead screws captive longitudinally - but haven't cut & drilled & mounted it yet... been too busy ._.
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[22:09:34] <zeeshan> man i dunno if im pushing this end mill ..
[22:09:53] <zeeshan> it was supposed to be pushing it at "54ipm"
[22:10:06] <zeeshan> .9doc .035 woc (3/8 3 flute end mill)
[22:10:27] <zeeshan> doing 80 ipm now
[22:10:48] <zeeshan> im not sure why people say not to push the end mill beyond .001" deflection?
[22:10:54] <zeeshan> im at about .0018
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[22:13:51] <evil_ren> zeeshan: rule of thumb in context of tool life?
[22:14:11] <zeeshan> i dunno
[22:14:23] <zeeshan> im reading a book and they were pushing the tool at 0.004" deflection
[22:14:23] <evil_ren> i finished roughing shit with waaaay more deflection than that on 1/8" HSS endmills, i wouldnt expect it to do it 10 times tho
[22:14:44] <zeeshan> im trying to optimize the cutting parameters
[22:14:48] <zeeshan> i got a lot of these still to go
[22:14:54] <zeeshan> i cant spend 25 min per part
[22:14:58] <zeeshan> itll never finish!
[22:15:02] <zeeshan> ive got it down to 12 now
[22:15:16] <evil_ren> i mean any hard numbers in this context is usually just advice, that deflection cant be appropriate for 1/8 to 3" diamater tools
[22:15:32] <zeeshan> youre right
[22:15:40] <zeeshan> because they'll have different strain amounts
[22:15:47] <evil_ren> even the bible starts the feeds and feeds chapter like, yeah this is all meaningless in context of your machine, your work, your tool
[22:15:50] <zeeshan> i guess they should be specifying strain values
[22:15:53] <zeeshan> not deflection
[22:15:56] <enleth> PCW: do you actually keep track of the exact make/model/revision of mainboards you test 5i25 and 6i25 on?
[22:16:12] <evil_ren> it might not scale, or they might be talking about a specific job
[22:16:17] <zeeshan> evil_ren: im so far off fswizard rifght now
[22:16:19] <zeeshan> that its not even funny
[22:16:31] <zeeshan> fswizard with chip thinning was recommending 38 ipm
[22:16:35] <zeeshan> im at 3 times that
[22:16:38] <zeeshan> almost
[22:16:53] <evil_ren> this is all for some sort of nominal unstated tool life tho
[22:17:06] <zeeshan> i dont see tool life being affected
[22:17:13] <zeeshan> as badly
[22:17:17] <zeeshan> yea feedrate has a effect on it
[22:17:36] <zeeshan> like ive made about 60 parts with these settings
[22:17:47] <zeeshan> if i break an end mill every 60 parts im happy
[22:18:08] <evil_ren> standard speeds and feeds that dont seem insane, i always assume some ridiculous long tool life, like 100s of hours, ive pushed tools way harder
[22:18:12] <zeeshan> cause 12 min vs 25 min is a huge savings in labour
[22:18:21] <evil_ren> because my shit doesnt spin at 75krpm and i want to finish the jobs in this century
[22:18:33] <zeeshan> have you snapped a brand new tool justby pushing it too fast?
[22:18:34] <zeeshan> feedrate wise
[22:18:58] <evil_ren> yes but i dont think this is very useful in context of your machine
[22:19:06] <evil_ren> like, apples to apples comparison
[22:19:37] <zeeshan> i cant find a good published value for the maximum elastic strain
[22:19:44] <evil_ren> even with same tooling, the stress from machine rigidity is going to be diff ballpark
[22:19:57] <evil_ren> because its prob not super consistent
[22:20:52] <evil_ren> like, tooling geometry isnt simple so you cant throw standard equations at it, and different stock and geometry and heat treatment between manufacturers gonna affect it
[22:21:10] <PCW> enleth: no, not sure why we would care
[22:21:17] <zeeshan> should be able to get a range of values though!
[22:21:51] <evil_ren> yeah that seems fair, i would imagine theres a textbook or something that attemnpts to quantify it
[22:22:00] <evil_ren> didnt you take a tooling geometry class?
[22:22:02] <zeeshan> i did
[22:22:07] <evil_ren> has a textbook?
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[22:22:22] <zeeshan> too many :P
[22:22:27] <zeeshan> im reading one during bed time now
[22:22:41] <evil_ren> well its prob like, half a paragraph somewhere in those 2000 pages
[22:23:43] <enleth> PCW: a list like that could kinda help buy something that works, I guess. Unless, of course, it wouldn't because some dumbass motherboard maker changed something with no outside indication and a customer gets angry at you when it doesn't work.
[22:23:47] <evil_ren> if its not there, my guess is every time theyve tried to quantify it across manufacturers, materials, and cut parameters, they couldnt make sense of the data in a way that would make a nice graph
[22:24:14] <evil_ren> which would be surprising to me
[22:24:21] <PCW> why would you expect it to not work?
[22:25:04] <enleth> PCW: screwed up firmware at the EC level doing something dumb with unmaskable interrupts, for example
[22:25:44] <enleth> PCW: which is the whole point of asking for an exact make and model of a nice motherboard for CNC in the first place, I think
[22:26:34] <evil_ren> yeah im always worried about getting a mobo where they had intern laying out the secondary circuits for the support chips
[22:26:58] <enleth> interrupts, or power saving, or whatever it is that motherboard designers and firmware writers screw up that makes latency unpredictable
[22:27:31] <evil_ren> intern forgot the pullup
[22:29:04] <gregcnc> some references say specific cutting power decreases with increased chip thickness
[22:29:22] <evil_ren> heh, more leverage?
[22:29:30] <gregcnc> fs wizard has a linear relationship
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[22:31:17] <evil_ren> i would imagine that has a lot to do with the curved flute surface to cutting edge transistion, and i would further imagine the shape of the flute surface plays into strength vs chip clearing compromise
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[22:31:48] <evil_ren> and even if it could be quantified, how do you have a user describe it?
[22:33:19] <evil_ren> im pretty sure this is where tech docs throw their hands up and say 'but exact speeds, feeds, and doc will depend on your machine, your work, your tool, and your tool life targets'
[22:38:48] <gregcnc> a Sandvik doc I read said turning inserts suggested f/s gave 15 minute life. most applications last much longer than that
[22:39:00] <gregcnc> in real life it seems
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[23:02:57] <zeeshan-mill> :D
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[23:03:34] <zeeshan-mill> too bad my drives are undersized
[23:03:48] <zeeshan-mill> and cant decel/accel fast enough
[23:03:51] <zeeshan-mill> =/
[23:04:49] <zeeshan-mill> evil_ren, i think some assumptions are to be made
[23:04:56] <zeeshan-mill> otherwise nothing can be accomplished!
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[23:14:43] <evil_ren> thats pretty much the disclaimer in every general speeds/feeds/doc table
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[23:19:43] <enleth> heh, just realized I could make a selectable power limit for the VFD on the mill
[23:20:04] <enleth> with a key or a card needed to lift it
[23:20:16] <enleth> although that might make more sense on a lathe
[23:21:48] <enleth> to let people who received all the training necessary but still don't have much experience use the thing and worry a bit less about getting pulled in and twisted into a pretzel
[23:23:08] <enleth> wouldn't be entirely useless on a mill though, I've got the VFD's error output wired into the e-stop circuit, and it does trip it on motor overload
[23:24:42] <enleth> so a tool-on-something crash would indeed make it stop much quicker if the VFD was told to limit the motor's power at 500W or so
[23:25:20] <enleth> (unless it's stationary, but then the servo overload would kick in)
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