#linuxcnc | Logs for 2014-09-04

[00:02:22] <zeeshan> XXCoder: lol
[00:02:36] <XXCoder> :)
[00:04:36] <zeeshan> http://i.imgur.com/xsViAS7.jpg
[00:04:40] <zeeshan> transmission almost back together
[00:05:06] <XXCoder> whats it for
[00:05:11] <XXCoder> wild guess truck?
[00:05:14] <zeeshan> no
[00:05:48] <zeeshan> for my rx7
[00:06:18] <XXCoder> fancy.
[00:06:25] <XXCoder> mines nissan quest 1996 lol
[00:06:30] <XXCoder> wanna rebuild its tranny?
[00:06:46] <zeeshan> sure!
[00:06:48] <zeeshan> :D
[00:06:53] <XXCoder> lol
[00:07:20] <XXCoder> actually its pretty good. that model van has tranny thats real tough. mines been abused and 181k miles and still fine. just slightly hard shift
[00:07:50] <zeeshan> if theyre manual
[00:07:52] <zeeshan> ican rebuild em
[00:07:56] <zeeshan> if theyre automatic, i have no clue :)
[00:08:48] <XXCoder> its auto.
[00:15:55] <XXCoder> one thing issue though is it smells of gas
[00:15:59] <XXCoder> expecially when warming
[00:24:38] <XXCoder> zeeshan: apparently thats caused by dirty idle air control
[00:24:54] <zeeshan> lots of reasons why you smell gas
[00:24:56] <XXCoder> looks simple enough to use trottle body cleaner to clean it
[00:24:59] <zeeshan> you might have a fuel leak
[00:25:15] <XXCoder> it dont smell when warmed apparently
[00:25:16] <zeeshan> your car might be running rich from a bad o2 sensor, maf sensor, idle air control
[00:25:18] <XXCoder> so thats out
[00:25:28] <zeeshan> are you throwing a check engine light?
[00:25:40] <XXCoder> yeah cheap enough to do it. its needed because sometimes rough idle too
[00:25:46] <XXCoder> yeah egr error. fun
[00:25:55] <XXCoder> theres this hose I need to clean but I cant find it
[00:26:07] <XXCoder> small metal hose. if that dont fix I would need to replace egr itself
[00:26:26] <zeeshan> what year car
[00:26:29] <XXCoder> 1996
[00:26:32] <zeeshan> ah
[00:26:38] <zeeshan> right at the turn over for obd2
[00:26:48] <XXCoder> got picture?
[00:26:51] <XXCoder> thats very hard to find
[00:27:00] <zeeshan> no im saying the diagnostics
[00:27:08] <zeeshan> was changed to on board diagonstics 2 (obd2)
[00:27:12] <XXCoder> oh I has odb2 module
[00:27:14] <zeeshan> so you should be getting a lot more codes
[00:27:18] <XXCoder> thats how I know
[00:27:19] <zeeshan> if other stuff was wrong
[00:27:29] <zeeshan> i really think you either have a fuel leak
[00:27:29] <XXCoder> and nope only p0400 (egr)
[00:27:32] <zeeshan> or exhaust leak
[00:27:35] <zeeshan> to smell fuel like that
[00:27:35] <XXCoder> or p0401 forgot
[00:27:54] <XXCoder> its best $40 I ever spent
[00:28:27] <zeeshan> p0400 doesnt make your car run richer (uise more fuel)
[00:28:32] <zeeshan> its just an annoyance code
[00:28:36] <XXCoder> yeah
[00:28:41] <XXCoder> no other error
[00:28:43] <XXCoder> even pending
[00:28:44] <zeeshan> just means your egr isnt working and your nox will be higher
[00:28:44] <anarchos2> i bought one of those bluetooth odb2 adaptors. it's really neat.
[00:28:49] <anarchos2> $12 from aliexpress, iirc
[00:28:54] <zeeshan> XXCoder: do 2 things
[00:28:57] <XXCoder> ana yeah I use touchpad with it
[00:28:59] <zeeshan> do you knwo where you fuel injectors are
[00:29:00] <XXCoder> love it
[00:29:56] <XXCoder> not really zee
[00:30:08] <zeeshan> you need to touch around the injector orings
[00:30:13] <zeeshan> and then smell your hand
[00:30:15] <zeeshan> and see if it smells like fuel
[00:30:19] <XXCoder> I'
[00:30:23] <zeeshan> and do the same at the connections of the fuel rail
[00:30:27] <XXCoder> I'd have to get someone else
[00:30:32] <zeeshan> and look for cracks on the fuel line
[00:30:39] <zeeshan> small cracks on fuel like
[00:30:41] <XXCoder> lack of smell.. thats in top 3 of my annoyances
[00:30:44] <zeeshan> can give you intermittent
[00:30:48] <zeeshan> smell too
[00:30:55] <XXCoder> thanks though I'll check when can
[00:31:05] <zeeshan> also for your egr (its really not a big deal if you dont fix it)
[00:31:09] <zeeshan> but if you want to pass emissions
[00:31:11] <XXCoder> still need to clean air idle controller though its bit rough
[00:31:20] <zeeshan> i'd first start with measuring the impedance of the coils for the egr
[00:31:26] <zeeshan> and see if thats within factory spec
[00:31:27] <XXCoder> heh i cheated one time with my now broken down car ford contour 1998
[00:31:31] <zeeshan> shoulld be like 180 ohms or so
[00:31:45] <XXCoder> just drive till warm, and reset codes right inside inspection
[00:31:46] <XXCoder> area
[00:31:48] <zeeshan> if its like 0 ohms you know you got a short
[00:31:52] <XXCoder> just hide odb2 :P
[00:31:54] <zeeshan> if its like 10,000 ohms
[00:32:06] <zeeshan> something is wrong also ;p (corrosion?)
[00:32:11] <XXCoder> lol ok
[00:32:33] <zeeshan> i made a small pulser a while back
[00:32:39] <zeeshan> to test pulse wide modulated circuits
[00:32:43] <zeeshan> and to clean out fuel injectors properly
[00:32:53] <XXCoder> https://www.youtube.com/watch?v=mmRhcVkJdeQ
[00:33:04] <zeeshan> you put the fuel injectors in an ultrasonic bath with solvent
[00:33:05] <XXCoder> autocaptions is nonsense
[00:33:06] <zeeshan> and trigger em
[00:33:26] <zeeshan> is that what your engine bay looks like?
[00:33:34] <XXCoder> nah its someone else
[00:33:43] <zeeshan> i know
[00:33:44] <zeeshan> but same engine?
[00:33:46] <XXCoder> its also 2000
[00:34:00] <XXCoder> looks similiar
[00:34:07] <zeeshan> lol
[00:34:09] <XXCoder> need look closer
[00:34:09] <zeeshan> that sucks man
[00:34:11] <zeeshan> v6
[00:34:23] <zeeshan> 3 of your spark plugs and fuel injectors
[00:34:25] <XXCoder> yeah its nice and powerful when it feels like it
[00:34:29] <zeeshan> are hiding under that big plenum
[00:34:54] <XXCoder> heh try mecury sable 1988
[00:35:07] <XXCoder> its engine is so big theres inches clearance around it
[00:35:25] <XXCoder> 3.8L. 2 ton truck engine in average sedan
[00:36:26] <XXCoder> http://www.ford-taurus.org/taurusinfo/Engine/Large/90-95_Essex.jpg
[00:36:28] <anarchos2> i need to get a truck
[00:37:12] <XXCoder> man I miss my sable :(
[00:37:27] <XXCoder> stupid fucker did 50 mph left turn into it
[00:37:39] <XXCoder> I'd have died if I didnt react and turn right
[00:38:17] <XXCoder> it turned it from fatal 45 degree impact into driver side door to t bone. latter is still very bad but all I got was sore and 9 months dizzyness
[00:39:39] <XXCoder> anyway
[00:39:44] <XXCoder> zeeshan: thanks for tips man'
[00:39:53] <XXCoder> I'll check out when can
[00:40:05] <zeeshan> np
[00:40:15] <XXCoder> bedtime (im late to bed lol)
[02:02:24] <Deejay> moin
[09:48:43] <_methods> http://www.youtube.com/watch?v=MOXQo7nURs0
[09:48:48] <_methods> that's funny
[10:23:10] <archivist> lump of cast iron suitable as a base for a machine http://www.ebay.co.uk/itm/Induma-Milling-Machine-/181516127938
[10:24:46] <Rab> archivist, here's another one: http://seattle.craigslist.org/see/tls/4650831213.html
[10:25:30] <archivist> that costs far too much!
[10:26:26] <mozmck> yes, it should be priced somewhere around 10 cents per pound!
[10:27:04] <archivist> ten years of rust to get off it how much metal will be left
[10:33:24] <SpeedEvil> http://www.ebay.co.uk/itm/321507497743?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT- stil has no bids
[10:33:28] <archivist> the law states that anything in the rusted state shall be prices accordingly, well my law anyway
[10:34:28] <archivist> this is still a bargain http://www.ebay.co.uk/itm/261581939381
[10:36:22] <SpeedEvil> Well - yes
[10:36:28] <SpeedEvil> the chuck is worth that alone
[10:41:55] <JT-Shop> after writing this G code generator years ago it might actually be useful now http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Simple_LinuxCNC_G-Code_Generators#Arc_Buddy
[12:03:12] <chonkyfire> hi all
[12:05:25] <chonkyfire> I would like to ask what the best daughtercard is for the 5i25 if I plan to run a g540 for a cnc plasma table. I was looking at the 7i75 but I don't see many people using it on the forums. I'll be using 2 daughtercards with the 5i25 -- one will be the THCAD 10.
[12:06:41] <ssi> you don't need a daughtercard for the g540 itself
[12:07:27] <ssi> fwiw that's exactly how my plasma table is set up currently; one port drives the g540 directly, the other is through a 7i75, and I have a thcad for torch voltage
[12:08:30] <chonkyfire> so thcad is hooked up to 7175?
[12:08:35] <ssi> yep
[12:08:37] <Jymmm> Which is stronger, black pipe or 304?
[12:08:43] <Jymmm> both sch 80
[12:09:56] <chonkyfire> and the 7175 is there for noise isolation or for breakout wiring purposes?
[12:10:14] <ssi> Jymmm: at what temperature?
[12:10:20] <ssi> chonkyfire: breakout and protection
[12:10:41] <chonkyfire> do you keep them in the PC case or externally?
[12:10:50] <Jymmm> ssi: Hmmmm, let's say 800F?
[12:10:55] <chonkyfire> just laying around on the floor
[12:11:12] <ssi> chonkyfire: they're nailed to the wall :)
[12:11:15] <chonkyfire> or in waterbede
[12:11:21] <ssi> Jymmm: http://www.engineeringtoolbox.com/young-modulus-d_773.html
[12:11:40] <chonkyfire> haha nice
[12:12:35] <chonkyfire> do the three play well together out of the box or is there a significant amount of ini/hal rework?
[12:12:58] <ssi> well I dunno what you mean by rework
[12:13:03] <ssi> I usually start from scratch
[12:13:11] <ssi> but it's pretty straightforward
[12:13:11] <Jymmm> ssi: Ok, they are abut the same per the graph.
[12:13:17] <ssi> Jymmm: yeah that's what it seems like to me
[12:13:19] <chonkyfire> ok sounds good thnx
[12:42:47] <lair82> Hello Guys, After lots of trial and error, I finally narrowed it down to the motherboard being the culprit in rebooting when I was using linuxcnc. I noticed that it would reboot when I would press the machine off button on the Linuxcnc GUI. Not all the time, but at least once every 4-5 times.
[12:43:36] <lair82> I switched back to the gigabyte d525 board and at starts up and runs fine, with out rebooting.
[12:43:54] <lair82> Any thoughts on what could be wrong with the MB?
[12:46:37] <Rab> lair82, does the problem manifest when the computer is disconnected from any CNC hardware?
[12:47:39] <CaptHindsight> lair82: what happened when you swapped power supplies for the mainboard?
[12:48:01] <lair82> Didn't notice any problems at all, late yesterday I finally got all the problems sorted out I having upgrading this machine, and then I noticed this.
[12:48:25] <lair82> The PC was up and running since last friday, no issues
[12:49:15] <lair82> Never changed the power supply, didn't even think of that, but it is a 600w PS
[12:49:55] <CaptHindsight> lair82: Do you only have the issue when it's hooked up to CNC hardware running motors?
[12:50:15] <lair82> CaptHindsight , yep
[12:51:18] <lair82> I unmounted and insulated each circuit board, one at a time, then started up and still saw the problem.
[12:52:08] <lair82> I was thinking some kind of short or power spike in the machine was killing, but when the MB was hanging in mid air by the cables, it still did it.
[12:52:09] <CaptHindsight> when the machine off is pressed does that disable the drives and turn off any external power supplies?
[12:52:46] <CaptHindsight> I'd try a different model power supply
[12:53:07] <CaptHindsight> for the MB
[12:53:11] <lair82> No the all power supplies, are always on, as long as there is 480 coming into the machine.
[12:53:34] <PetefromTn_> what kinda machine are we talking about here?
[12:54:10] <lair82> Cincinnati Milacron 12MO turning center
[12:54:31] <PetefromTn_> OOOHhh nice... I have a Cincinatti Arrow 500 VMC running linuxCNC..
[12:54:39] <lair82> I do have a spare PS, I will go try it and see
[12:54:41] <PetefromTn_> how do you like that machine?
[12:56:23] <lair82> Very nice, we have this 12MO, an 18MO, a 15CC, a 24MR, and a 10CC, of which the 10CC, 15CC, and 12MO are all running Linuxcnc
[12:56:55] <PetefromTn_> WOW that is awesome. where are you located?
[12:57:08] <lair82> If we can get the MB issues figured out the 24MR is next on the list. Petersburg MI
[12:57:31] <PetefromTn_> what if any of those machines would you say could be a garage shop machine?
[12:58:44] <CaptHindsight> lair82: we have been using that same MB for over a month without issue. It could still be your lucky board, power supply or the way it's all wired
[12:59:02] <lair82> The 10CC, it weighs around 20,000 lbs, but is only about 15' long, 8' deep and 7' high. and it has a 10"x22" work envelope.
[12:59:21] <PetefromTn_> HOLY SMOKES 20K!!!
[12:59:27] <PetefromTn_> That is a stout little machine.
[12:59:29] <CaptHindsight> lair82: when your MB was hanging in mid air it was still connected by the wires that would conduct the noise/spike that could cause it to reset
[12:59:58] <PetefromTn_> I am looking for something akin to my Arrow 500 about the same size hopefully
[13:00:28] <lair82> CaptHindsight , I know, this is third machine now, and they are all setup the same way, and we have seen spectacular results since you recommended this board.
[13:00:46] <PetefromTn_> the atom board?
[13:01:11] <PetefromTn_> D525?
[13:01:44] <CaptHindsight> asrock FM2A88M-HD+ with APU
[13:01:49] <SpeedEvil> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=271596200762&ssPageName=ADME:SS:SS:US:1120 - modern art
[13:01:54] <lair82> I just don't know why the gigabyte board runs fine, then the Asrock board shuts down.
[13:02:00] <CaptHindsight> A4 4000 APU
[13:02:19] <lair82> Its still connected with the 5i23 in PCI slot
[13:02:56] <lair82> A4-4020, the same as the machine that I switched over a week ago monday.
[13:03:53] <lair82> We bought this MB off ebay, newegg was out of stock, now they are back in stock, and I am going to order another one today.
[13:04:00] <CaptHindsight> lair82: it's frustrating, but try to see if you can isolate the problem to power supply or wiring
[13:04:17] <CaptHindsight> swap to a different model power supply
[13:04:47] <CaptHindsight> try disconnecting one of the drives at a time
[13:05:05] <lair82> The ad said new in box, which it was, but the static bag was not sealed, so could be fubar'ed
[13:05:23] <CaptHindsight> try disabling all the drives without hitting the Machine OFF button
[13:05:30] <lair82> Heading out there now, be back shortly
[13:05:31] <CaptHindsight> ah yeah
[13:05:39] <lair82> Ok,
[13:05:41] <CaptHindsight> I hate getting pre-opened stuff
[13:13:43] <ssi> bah I wish 3d printing wasn't so sloooooow
[13:29:33] <CaptHindsight> SLA
[13:30:49] <ssi> don't have SLA
[13:30:54] <ssi> and the parts I'm making are too big for most SLA printers
[13:31:01] <ssi> most cheapy diy type anyway
[13:34:07] <CaptHindsight> you could use your 40W laser tube to build a SLS printer for plastics, if you felt so inclined
[13:34:19] <ssi> could be interesting
[13:34:31] <ssi> I have a spare motion platform too
[13:35:28] <lair82> Looks like the culprit is solenoid valve that operates a hydraulic brake on the x axis, it goes on and off at the same time as machine on/off.
[13:35:47] <ssi> is there a flyback diode across it?
[13:36:57] <lair82> not that i am aware of.
[13:39:41] <CaptHindsight> what drives the solenoid? A mechanical relay, SS relay, unknown PLC output, or?
[13:40:05] <CaptHindsight> adding a flyback diode and a capacitor couldn't hurt
[13:41:07] <lair82> A mechanical relay
[13:41:17] <marmite> CaptHindsight: allmost a need
[13:43:20] <ssi> yeah I would definitely start by making sure that there's a flyback diode
[13:43:30] <pcw_home> if a relay drives an inductive load the inductive load needs a flyback diode if DC
[13:43:30] <ssi> when the solenoid opens, there needs to be somewhere for all that back-emf to go
[13:43:31] <pcw_home> or a snubber network across the relay contacts if AC
[13:44:21] <CaptHindsight> PC power supplies also vary greatly in their ability to handle noise and brownouts
[13:44:36] <CaptHindsight> yeah, sorry I assumed DC solenoid
[13:44:45] <ssi> https://pbs.twimg.com/media/BwtW8w4CQAAJDh6.jpg:large
[13:44:46] <ssi> getting there
[13:45:37] <CaptHindsight> nice size exhaust
[13:45:54] <ssi> yea it's a 6" inline duct fan
[13:46:33] <lair82> it is an AC 120vac solenoid, what would you guys recommend? each machine has probably 8-10 solenoids, no diodes or subbers
[13:47:02] <ssi> they make little snubbers that's a resistor and cap in one package
[13:52:55] <CaptHindsight> lair82: whats the power consumption of the relay? Is it marked or is there a part number?
[13:53:05] <lair82> 12 watts
[13:53:11] <CaptHindsight> not relay, solenoid
[13:54:33] <PetefromTn_> ssi Hey man that looks pretty damn spiffy my friend..
[13:54:36] <lair82> I knew what you meant.
[13:57:08] <skunkworks> we are running a ton of hydraulic solinoids using opto22's.. I don't know if they all do but most have snubbers across them
[13:58:00] <PetefromTn_> ssi (h)
[14:10:11] <CaptHindsight> http://tinyurl.com/lfrx47w http://www.mouser.com/ds/2/88/Q-QRL-27503.pdf what Mouser has in stock for Arc Suppressor/Snubber Networks
[14:11:41] <CaptHindsight> http://www.digikey.com/product-highlights/us/en/cornell-dubilier-quencharc-caps/744
[14:19:42] <CaptHindsight> lair82: you'll have to decide id you want to try adding snubbers or changing to relays (SSR) with snubbers
[14:23:20] <CaptHindsight> http://www.alliedelec.com/search/productdetail.aspx?SKU=70030263
[14:23:28] <pcw_home> SSRs typically dont need snubbers since they turn off at near 0 current so theres little stored energy
[14:24:01] <CaptHindsight> suppression by design
[14:24:02] <pcw_home> (normal SCR based SSRs I mean)
[14:28:01] <lair82> http://www.automationdirect.com/adc/Shopping/Catalog/Relays_-z-_Timers/Electro-Mechanical_Relays/Slim_-z-_Card_Relays,_5A_(RS_Series)/RS4N-DE
[14:28:13] <lair82> Those are what I am using for relays
[14:29:33] <pcw_home> is the solenoid AC or DC?
[14:29:42] <lair82> AC
[14:30:18] <pcw_home> ok so it need a arc suppressor across the relay contacts
[14:30:38] <pcw_home> (good for the relay as well as reducing EMI)
[14:31:40] <lair82> So I need to put these across the contacts?
[14:31:54] <pcw_home> 120VAC?
[14:32:03] <lair82> In parallel with the contact?
[14:32:08] <lair82> Yes
[14:33:43] <pcw_home> yes
[14:34:53] <skunkworks> yes
[14:35:01] * skunkworks was feeling left out
[14:35:20] <CaptHindsight> the motion is carried
[14:36:23] <lair82> I take the help from everyone,
[14:39:50] <lair82> So I take it that one of these http://www.galco.com/buy/RK-Electronics/RCS2A-18 would do the same thing?
[14:40:56] <lair82> I have a whole box of used ones I took off of another machine
[14:41:07] <CaptHindsight> try them
[14:41:49] <CaptHindsight> http://www.galco.com/techdoc/rkel/rcs2a-18_dat.pdf data sheet
[14:42:31] <ssi> PetefromTn_: :)
[14:43:29] <ssi> the new laser is gonna be a fair bit more HV safe than the old
[14:43:53] <PetefromTn_> HV?
[14:43:55] <ssi> high voltage
[14:43:58] <PetefromTn_> aah
[14:44:22] <PetefromTn_> looks like a frankenstein science experiment with all the tubes and helixes LOL
[14:44:28] <ssi> heheh
[14:44:33] <PetefromTn_> Gonna burn baby BURN!!
[14:44:42] <ssi> well the old tube has a tungsten electrode pinched through the glass
[14:44:49] <jdh> Pete: got spindle?
[14:44:58] <PetefromTn_> I have absolutely ZERO ideas about how they work.
[14:45:11] <PetefromTn_> not yet working on it. Got it almost wired back up and ready to test now...
[14:45:13] <ssi> and so the HV connection was done by wrapping a wire around it and soldering the wire (won't stick to the tungsten), and then wrapping that in teflon tape, slipping a piece of tubing over it and filling that with silicone
[14:45:17] <ssi> heh
[14:45:24] <PetefromTn_> Took a break to pickup my daughter at school.
[14:45:32] <ssi> the new tube has metal reflector housings, and there's screws for ring terminals
[14:45:42] <ssi> and the anode has a lucite cap to cover the HV terminal
[14:45:53] <ssi> and there's a proper HV disconnect in the anode line
[14:46:07] <PetefromTn_> you run this on 110 or 220v
[14:46:15] <ssi> everything's 110
[14:46:30] <PetefromTn_> neato spedito
[14:46:42] <ssi> but the anode on this laser is 35kV start, 30kV run
[14:46:52] <ssi> which gives me the willies :)
[14:47:16] <jdh> chinese 35kv PSU
[14:47:17] <PetefromTn_> would probably scare the crap out of me LOL
[14:47:20] <jdh> what could go wrong.
[14:47:22] <rythmnbls> is this a CO2 laser ?
[14:47:31] <ssi> jdh: this one's at least a nice expensive one :)
[14:47:32] <ssi> rythmnbls: yea
[14:47:49] <PetefromTn_> what will this laser do that the other one would not?
[14:48:00] <ssi> 3x the power :P
[14:48:02] <jdh> ssi: did they spell "CE" and "UL" right on the stickers?
[14:48:16] <ssi> yeah it says "There is no Dana, there is only CEUL"
[14:48:35] <PetefromTn_> There is no DANA only ZUL
[14:48:46] <PetefromTn_> hahaha
[14:49:34] <ssi> PetefromTn_: I'm hoping it'll do 3/4" hardwood plywood easily
[14:49:45] <ssi> and crossing my fingers that maybe I can do thin steel
[14:49:48] <PetefromTn_> https://www.youtube.com/watch?v=LjLFKmRk16E
[14:49:51] <ssi> which the numbers say it should, but I'm skeptical
[14:50:04] <jdh> 100 chinese watts cutting steel?
[14:50:35] <ssi> reci tubes are chinese, but they're not "chinese"
[14:50:40] <jdh> cool
[14:50:50] <ssi> it's a nominal 100W tube, 120W peak
[14:50:54] <ssi> the "chinese" 100W tubes are 100W peak
[14:51:20] <ssi> so as I understand it, if you can get a spot above 10kw/mm^2, you can cut steel
[14:51:23] <ssi> limited by your DOF
[14:51:37] <ssi> with my 2" lens, I'll have a 15kw/mm^2 spot with a 1.6mm DOF
[14:51:44] <ssi> which should allow me to cut thin steel, in theory
[14:52:15] <ssi> but I'm reserving judgement until I try it
[14:56:18] <jdh> I wrote some code to find a seam line and position the laser for welding.
[14:56:42] <jdh> turns out if you don't have enough offset, you reflect and melt the fiber.
[14:58:43] <ssi> ha
[14:58:53] <lair82> Looks like that worked, I manually switched the valve on and off probably 50 times, no issues. Looks like I have some work to do getting those on the rest of my solenoids.
[14:59:19] <ssi> I don't have a good feel for how reflective different metals are to co2
[14:59:27] <lair82> Thanks Again Guys, :)
[14:59:41] <ssi> lair82: nice :)
[15:05:30] <MC500> I am wanting to use the Ziegler method of tuning my A/C servo motors, is there a way to select or sort of determan what oscilation perid to start out with based on the hardware I have?
[15:18:33] <ssi> getting close to first firing
[15:25:56] <JT-Shop> MC500, I use this http://www.gnipsel.com/linuxcnc/tuning/index.html
[15:40:30] * JT-Shop sets up the last part to drill the holes out and the 6-way controls are done!
[15:51:19] <PetefromTn_> Well the spindle motor is installed and working performing the run in procedure for the bearings right now!
[15:55:02] <SpeedEvil> :)
[15:57:04] <JT-Shop> PetefromTn_, Sweet!
[16:04:50] <ssi> laser fires
[16:04:56] <ssi> there's some wonkiness with current control
[16:08:33] <PetefromTn_> thanks man it sure is quieter now LOL
[16:21:26] <ssi> so I need to add a scale component for the current signal
[16:21:43] <ssi> 61% gives me 30mA, which is the max for this tube
[16:21:47] <ssi> the psu will do 40mA
[16:21:56] <ssi> and 25% is the low end of what will start the tube, and produces about 8mA
[16:22:26] <Deejay> gn8
[16:31:52] <MC500> I cant find on any of the tuning sites what to set max velocity at... it seems to make a big differance... what is a good starting point?
[16:34:38] <JT-Shop> depends on your drives
[16:34:49] <JT-Shop> gear ratios etc.
[16:35:06] <JT-Shop> what is the max rpm of your servos?
[16:36:26] <MC500> 4000 RPM for the motor... let me calc the ratio
[16:37:31] <MC500> I have to count... brb
[16:38:29] <MC500> its a rotary axis, so would the ratio be turns per degree or per 360 degrees of the axis?
[16:39:58] <JT-Shop> I would guess degree, but you could look that up in the Integrators Manual
[16:41:32] <MC500> its 1.43 degrees per revolution (thats based on marking it with a pen and turning it once... would have to takeit apart to count teeth)
[16:43:24] <MC500> so with that info how would I calculate a resonable velocity
[16:43:49] <cradek> the scale for a rotary is counts per degree
[16:49:36] <MC500> well I just gave that info to somone who dosent suck at math and they came up with 100... im going to go with that unless anyone has gooder math...
[16:50:11] <cradek> if you spin it 36000 degrees you'll certainly know if the scale is right
[16:53:50] <MC500> well now I am starting to try and tune PID, I am setting P to 2.5 and in one direction it ocilates and in the other it zings and errors out, how would I go about getting the same behavior in both directions?
[16:54:41] <MC500> this is just trying to manually jog 1.00
[17:10:30] <MC500> I guess another question would be if the max velocity is 100 (motor at 4000rpm) I wouldnt ever want it that fast so would a resonalbe fraction be like 50 or even 100?
[17:10:41] <MC500> er I mean 10
[17:35:37] <JT-Shop> set to the speed you want...
[18:23:10] <PetefromTn_> WooHoo!!
[18:23:40] <PetefromTn_> I just ran my spindle up thru the break in procedure of the new angular contact bearings.
[18:24:08] <PetefromTn_> The machine ran at 6k quietly ( or as quietly as 6k can possibly sound on a VMC ) for about ten minutes.
[18:24:19] <PetefromTn_> which is the max RPM of this machine.
[18:24:42] <PetefromTn_> Before this I have never run the machine at much above about 3500RPM for all the parts I have been making.
[18:25:02] <PetefromTn_> Now I can probably safely run it at 5500 easily all day long it sounds wonderful at that speed for some reason.
[18:25:42] <Flipp-_> anyone know a place to source for worm gears?
[18:25:55] <Flipp-_> *source worm gears?
[18:26:40] <CaptHindsight> Flipp-: what size?
[18:26:43] <JT-Shop> wait till you see the finish on ally at 6k
[18:27:18] <PetefromTn_> Oh I know man I have run many machines at 6k or more even my RF45 had 8k spindle speed so yeah it kicks ass LOL
[18:27:23] <JT-Shop> PetefromTn_, do you use those dead sharp inserts for ally?
[18:27:37] <JT-Shop> I love the finish they leave
[18:27:42] <Flipp-_> CaptHindsight: not sure quite what I'm looking for yet, but the worm gear would be ~2cm and the gear might have 25 or so teeth
[18:28:01] <PetefromTn_> I am optimistic that my parts finish will improve simply due to the lack of vibration and noise from the spindle motor thru the belts let alone the higher speeds.
[18:28:09] <Flipp-_> something that could definitely fit into a 40x40mm box
[18:28:11] <CaptHindsight> Flipp-: https://sdp-si.com/eStore/Catalog/Group/175
[18:28:15] <PetefromTn_> what inserts? I just use quality carbide endmills...
[18:28:49] <PetefromTn_> You have seen some of the pictures and finish I have been able to get on the machine here recently no?
[18:29:26] <Flipp-_> CaptHindsight: thanks :)
[18:29:58] <JT-Shop> for <3/4" end mills I use Lakeshore Carbide variable flute end mills for aluminum
[18:30:16] <JT-Shop> 3/4 > I use inserts for aluminum
[18:30:23] <PetefromTn_> I am going to have to modify the ramp up speed of the motor in the VFD because it does not seem to like the rapid curve I have it set to now. When it gets up around the 6k mark it kinda slows accell a tad.
[18:30:49] <PetefromTn_> yeah I use Maritool aluminum specific carbides they have been very good to me.
[18:32:08] <PetefromTn_> They are reasonably priced and cut beautiful. What sort of insert cutters are you using and with what inserts?
[18:34:51] <JT-Shop> on my 3/4" end mill I use Mitsubishi APGT1135PDFR-G2 HTi10 inserts
[18:36:04] <JT-Shop> on my 1" end mill I use Kyocera APET1604PDFR
[18:36:07] <PetefromTn_> who makes the endmill?
[18:37:40] <Tom_itx> i bet Sandvik makes em
[18:37:54] <Tom_itx> maybe not that particular one...
[18:38:11] <Tom_itx> Iscar
[18:43:51] <Tom_itx> http://www.iscar.com/eCatalog/Products.aspx?mapp=ML&app=59
[18:53:52] <CaptHindsight> http://www.shars.com/product_categories/view/2100602/HSS_2_Flute_Tin_Coated these not good enough for yah hmmm?
[18:55:28] <Tom_itx> yeah generally for 1" or less a regular EM would suffice
[18:59:46] <JT-Shop> PetefromTn_, it's a Kyocera EM-1000-AL I got it from MSC #06023436
[19:00:56] <JT-Shop> https://www.mscdirect.com/product/details/06023436?rItem=06023436
[19:02:15] <JT-Shop> it was the only one I could find at the time with a 3/4" shank
[19:03:06] <JT-Shop> CaptHindsight, I use only carbide end mills they last longer
[19:04:20] <zeeshan|2> JT-Shop: i has some mitsu ones
[19:04:27] <zeeshan|2> ive seen someone destroy indexable end mills before
[19:04:30] <zeeshan|2> by not changing inserts
[19:04:35] <zeeshan|2> so it owns the tool holder!
[19:05:44] <CaptHindsight> I tend to find them used in miscellaneous sets of various sizes and makers
[19:06:30] <CaptHindsight> if I do buy new imports I drive over to Shars to make sure I get a good one
[19:08:59] <JT-Shop> they sure have a cheap price...
[19:09:03] <zeeshan|2> CaptHindsight: will you ship me stuff from shjars? :
[19:09:05] <zeeshan|2> ;)
[19:09:54] <zeeshan|2> is drill rod
[19:09:55] <zeeshan|2> already hardened?
[19:10:26] <CaptHindsight> every now and then I get one that's a reject with the wrong taper or off center etc
[19:10:39] <rythmnbls> zeeshan|2, not usually
[19:10:45] <zeeshan|2> okay it looks like
[19:10:51] <zeeshan|2> it comes in different grades like regular tool steel
[19:10:54] <zeeshan|2> i think i want water quench
[19:10:59] <zeeshan|2> so w1
[19:16:36] <PetefromTn_> Sorry JT I got a phone call from a fellow machinist locally I had to take. thanks for the information on the insert cutters.
[19:18:14] <Tom_itx> JT-Shop do you have a place around there that sharpens cutters?
[19:19:03] <Tom_itx> zeeshan|2 drill rod is generally water or oil hardened
[19:19:12] <Tom_itx> one costs more than the other
[19:19:24] <JT-Shop> Tom_itx, no
[19:19:26] <zeeshan|2> how much would
[19:19:36] <zeeshan|2> like 12" of 1/2" diameter rod cost me
[19:19:39] <zeeshan|2> oil quench
[19:19:41] <zeeshan|2> vs water
[19:19:51] <JT-Shop> what are you making?
[19:20:01] <Tom_itx> i'm not sure, the local guy has 3' sticks
[19:20:11] <zeeshan|2> tips for an indent tester
[19:20:14] <zeeshan|2> for the lab
[19:20:48] <Tom_itx> JT-Shop what do you do with your piles of dull cutters?
[19:21:16] <zeeshan|2> is tool steel easy to machine?
[19:21:17] <JT-Shop> you might need something a lot better than A2 or W1 like M2 or something in that neighborhood
[19:21:21] <zeeshan|2> is it like machining stainless?
[19:21:31] <Tom_itx> it's machineable
[19:21:41] <JT-Shop> I have a small container of tools that are not so sharp any more
[19:21:55] <JT-Shop> I use carbide for the most part so the pile grows very slow
[19:22:00] <Tom_itx> yeah
[19:22:23] <Tom_itx> wonder if it would profit to ship them to be resharpened
[19:22:33] <JT-Shop> time to strap on the feed bag guys
[19:22:37] <CaptHindsight> I usually break or chip them before I wear them out :(
[19:22:40] <JT-Shop> say goodnight Gracie
[19:23:11] <JT-Shop> that's what usually happens to sharp edge HSS end mills
[19:28:36] <PetefromTn_> I need to get some more insert cutters at some point. We used one style at that shop I worked in
[19:47:29] <zeeshan|2> i made a break thru in my research today :D
[19:47:37] <zeeshan|2> i got the SMP laminate
[19:47:40] <zeeshan|2> to start recovering
[19:47:48] <zeeshan|2> when it gets hit by a simulated stone chip
[19:47:48] <zeeshan|2> :D
[20:03:59] <ssi> is there a hal component that can limit a value to a max/min?
[20:06:24] <ssi> limit1, sweet
[20:18:14] <zeeshan|2> anyone have a 3d printer here
[20:18:18] <zeeshan|2> i need something printed!
[20:23:01] <ssi> I do
[20:23:13] <ssi> btw cutting 1/4" plywood at EIGHTY INCHES A MINUTE
[20:23:14] <ssi> WOOOOO
[20:23:55] <zeeshan|2> ssi
[20:23:56] <zeeshan|2> what material?
[20:23:58] <zeeshan|2> abs?
[20:24:13] <XXCoder> plywood
[20:24:20] <zeeshan|2> for 3d printing
[20:24:26] <XXCoder> oh
[20:25:56] <ssi> make that 100ipm
[20:25:58] <ssi> zeeshan|2: abs or pla
[20:26:13] <zeeshan|2> can you do rectilinear printing?
[20:26:18] <zeeshan|2> to get that fancy carbon fiber type pattern
[20:26:19] <zeeshan|2> lol
[20:26:50] <ssi> not sure what you mean :P
[20:26:57] <zeeshan|2> ignore me :P
[20:27:33] <zeeshan|2> can you open a solidworks 2013 file
[20:27:37] <ssi> yep
[20:27:50] <zeeshan|2> email? :D
[20:28:33] <zeeshan|2> sent
[20:30:15] <ssi> abs ok?
[20:30:30] <zeeshan|2> yes
[20:30:34] <zeeshan|2> whatever is the cheapest
[20:30:35] <zeeshan|2> :D
[20:30:46] <zeeshan|2> does that part look relatively easy to print?
[20:30:48] <XXCoder> abused banned shit
[20:31:12] <XXCoder> of course. dilios is easy to print ;)
[20:31:28] <zeeshan|2> sHH
[20:31:30] <zeeshan|2> howd you know
[20:31:30] <zeeshan|2> !
[20:31:41] <XXCoder> when ISNT it dilios?
[20:33:16] <ssi> yeah not too bad
[20:33:31] <zeeshan|2> how many sexual favors do i need to do
[20:33:33] <ssi> I'm gonna have to make the outside end the bottom, and then the screwhole flanges will be bridges
[20:33:36] <ssi> just a couple
[20:33:38] <ssi> how many do you need
[20:33:42] <zeeshan|2> 1
[20:33:50] <zeeshan|2> :{
[20:34:38] <XXCoder> B-|
[20:34:53] <zeeshan|2> its going to use 1 oz of abs
[20:35:03] <XXCoder> B8-O
[20:35:09] <ssi> 17.9cc
[20:35:14] <ssi> not sure what the density is off hand :)
[20:38:12] <zeeshan|2> SSI
[20:38:14] <zeeshan|2> dont worry about it
[20:38:24] <zeeshan|2> apparently my friend has one locally
[20:38:25] <zeeshan|2> =D
[20:38:30] <zeeshan|2> thank u!!
[20:39:02] <ssi> ha ok
[20:50:08] <ssi> ok so let's see how it handles 1/2" ply :D
[20:52:55] <XXCoder> lol
[20:58:05] <XXCoder> nice http://www.fromquarkstoquasars.com/free-physics-e-books-for-all-lev-landau-evgeny-lifshitz/
[20:59:57] <XXCoder> hey
[21:02:13] <PetefromTn_andro> Hey folks wazzup
[21:02:26] <XXCoder> https://www.youtube.com/watch?feature=player_embedded&v=fwB8nbI4TuM
[21:03:50] <PetefromTn_andro> I'm enjoying music from the hearts of space what is the video about?
[21:04:23] <PetefromTn_andro> Don't wanna blow my Zen LOL
[21:04:30] <XXCoder> cat and laser
[21:04:45] <PetefromTn_andro> Aah. Hilarious right
[21:04:50] <XXCoder> yeah
[21:05:36] <PetefromTn_andro> Man I cannot even tell you how nice it is to hear my spindle so quiet even at full stink RPM
[21:05:43] <XXCoder> :)
[21:06:03] <zeeshan|2> PetefromTn_andro: nice
[21:06:03] <zeeshan|2> :D
[21:06:57] <PetefromTn_andro> I just shut it down a little bit ago but I ran it for like ten minutes or so at max and then stopped and restarted it a couple times to max rpm just to test. It's a things of beauty!!
[21:07:29] <jdh> do you need to do a bearing break-in?
[21:07:40] <zeeshan|2> you always break in bearings
[21:07:40] <zeeshan|2> ;p
[21:07:46] <CaptHindsight> yes
[21:08:11] <CaptHindsight> you don't have to if you don't want them to last as long as they can
[21:08:15] <PetefromTn_andro> I will probably run it now at like 5500 or so just to preserve my spindle bearings for awhile but it's nice to know max is there when I Need it
[21:08:42] <PetefromTn_andro> Yeah man I was breaking them in all afternoon basically
[21:09:07] <PetefromTn_andro> Followed the fafnir manufacturing guidelines I got online
[21:09:55] <PetefromTn_andro> Even weighed the grease to make sure I put the right amount in each bearings
[21:10:01] <zeeshan|2> trans bearings reak in 50 km of driving
[21:10:39] <CaptHindsight> reak = strong odor?
[21:10:57] <PetefromTn_andro> That little airgun pellet scale or actually it's a jeweler scale came in really handy
[21:11:17] <jdh> your drug scale?
[21:11:35] <Tom_itx> like a powder scale for reloading?
[21:11:37] <PetefromTn_andro> No ass my airgun pellet scale!
[21:11:54] <PetefromTn_andro> Yup
[21:11:59] <jdh> I use my reloading scale for drugs.
[21:11:59] <PetefromTn_andro> Hehehe
[21:12:05] <jdh> err... for reloading.
[21:12:24] <zeeshan|2> whos an expert lathe runner here
[21:12:25] <zeeshan|2> cnc
[21:12:38] <PetefromTn_andro> I needed a scale to weigh my target pellets down to a tenth of a grain
[21:12:51] <jdh> mine only does .2 gr
[21:13:05] <PetefromTn_andro> I batch the ones that are most consistent.
[21:13:29] <zeeshan|2> i tried this indicator today
[21:13:30] <zeeshan|2> http://i.imgur.com/nHiqq4k.jpg
[21:13:43] <zeeshan|2> i was measuring a gauge block on a surface plate
[21:13:44] <zeeshan|2> for the hell of it
[21:13:55] <zeeshan|2> just by holding the gauge block
[21:13:58] <zeeshan|2> the thing moved on me
[21:14:03] <CaptHindsight> did it work?
[21:14:08] <zeeshan|2> it works
[21:14:11] <zeeshan|2> but it moves very easily
[21:14:20] <zeeshan|2> i think you gotta use insulated gloves or something
[21:14:23] <zeeshan|2> to handle metallic parts
[21:14:40] <jdh> where did you get that?
[21:15:15] <zeeshan|2> ebay
[21:15:20] <jdh> nice
[21:15:28] <zeeshan|2> it was in a bulk of indicators
[21:15:33] <zeeshan|2> i dont know why i keep buying them
[21:15:37] <zeeshan|2> i got a problem
[21:16:00] <jdh> there are worse problems.
[21:16:01] <CaptHindsight> OCDI
[21:16:06] <jdh> you could be stuck in .tn.us
[21:16:12] <zeeshan|2> rofl
[21:16:23] <PetefromTn_andro> Word!
[21:16:38] <CaptHindsight> obsessive compulsive dial indicatoritis
[21:16:44] <zeeshan|2> CaptHindsight: ROFL
[21:16:53] <PetefromTn_andro> Dial indiclitoris
[21:17:07] <zeeshan|2> i have 2 sicknesses
[21:17:10] <zeeshan|2> i collect indicators
[21:17:15] <zeeshan|2> and morse taper drill bits
[21:17:23] <zeeshan|2> its retarded
[21:17:38] <Tom_itx> seek counseling
[21:17:39] <PetefromTn_andro> It certainly is
[21:17:40] <zeeshan|2> but i can always feel better because i know archivist is worse
[21:17:56] <zeeshan|2> shuddap
[21:18:01] <zeeshan|2> all of you prolly collect something weird
[21:18:12] <jdh> I collect dive gear.
[21:18:42] <archivist> neva!
[21:18:49] <PetefromTn_andro> I don't really collect anything
[21:19:05] <archivist> you need comparators to hold the indicators too
[21:19:32] <PetefromTn_andro> Maybe music and concert tees but I doubt you could call it any sort of collecting
[21:19:37] <zeeshan|2> archivist: haha
[21:19:42] * archivist admits nothing about adjustable spanners
[21:19:50] <zeeshan|2> archivist has like 9201392308 levels
[21:19:52] <archivist> or lathes
[21:20:03] <zeeshan|2> PetefromTn_andro: that's collecting
[21:20:08] <zeeshan|2> but not to oweird :)
[21:20:14] <archivist> a lathe followed me home yesterday
[21:20:21] <zeeshan|2> dive gear collection is pretty non weird either
[21:20:26] <zeeshan|2> some dive gear is worth a lot
[21:20:27] <PetefromTn_andro> Naah I got like three concert tees max
[21:20:28] <zeeshan|2> archivist: haha
[21:20:34] <XXCoder> archivist: wow. lol
[21:21:12] <jdh> I collect meg teeth too... but then I sell them.
[21:21:26] <PetefromTn_andro> Tomorrow I am going to try to machine that freaking encoder mounts finally
[21:21:45] <archivist> only little http://www.collection.archivist.info/archive/mirror/Lorch/lorch.html
[21:22:32] * cpresser_ _only_ has concert tees
[21:22:41] <cpresser_> no other clothing :)
[21:23:04] <zeeshan|2> thats nice archivist
[21:23:21] <CaptHindsight> pants are overrated
[21:23:26] <PetefromTn_andro> I was looking at it and I am gonna have to make two plate and stack them because the motors shaft sticks up a good inches or more and then you have the encoder shaft sticks out of that.
[21:24:07] <Tom_itx> archivist, couple chunks out of the ways but you got some holders with it at least
[21:24:32] <PetefromTn_andro> I don't think I have a piece of aluminum that thick that is wide enough and I am pretty well broke after this bearings adventure
[21:26:44] <archivist> Tom_itx, mostly reasonable, spindle feels nice, the ways on a clockmakers lathe dont effect accuracy the same way so are almost dont care
[21:26:55] <PetefromTn_andro> Anyone play the zither or know what the he'll it is?
[21:27:18] <archivist> Harry Lime
[21:28:19] <PetefromTn_andro> Someone named Georgia Kelley is playing one right now on this HOS track
[21:28:29] <archivist> https://www.youtube.com/watch?v=jg1rcIOv2Oo
[21:29:50] <PetefromTn_andro> Interesting
[21:32:26] <PetefromTn_andro> So I was thinking that if it gets machined from two plates stacked atop one another I could pin them together and then they have four bolts one in each corner to attach it to the spindle motor
[21:33:03] <PetefromTn_andro> Should stay put I would imagine that way
[21:35:28] <PetefromTn_andro> Man I don't know where I would be without my smartphone
[21:36:42] <roycroft> getting more work done in the shop? :)
[21:37:15] <Tom_itx> i figure it's just another tool
[21:37:31] <Tom_itx> how you use it is up to you
[21:37:31] <XXCoder> just dont try to drive nail with it
[21:37:35] <PetefromTn_andro> Where else can you check voicemail, chat on orc, check your email and play online all while enjoying your favorite music in amazing clarity without skips or interruption
[21:38:07] <PetefromTn_andro> Irc
[21:38:09] <roycroft> actually, i like everything about smart phones except the phone part
[21:38:17] <roycroft> if they would take that out it would be a perfect device
[21:38:49] <PetefromTn_andro> Hell that is one of the best parts!!
[21:39:05] <Tom_itx> have you locked it up yet?
[21:39:18] * roycroft generally dislikes telephony
[21:39:29] <PetefromTn_andro> My buds allow me to answer calls and change songs with just a click on the chord.
[21:39:33] <roycroft> but for them that like it i'm happy it's there
[21:40:17] <PetefromTn_andro> Never locked it up but just got this HTC one its amazing
[21:40:58] <PetefromTn_andro> Damn thing can even change channel's on my tv and stereo when I loose the remote
[21:41:08] <CaptHindsight> I'm still trying to figure out why my calculator app needs to access my call history and phonebook :)
[21:41:27] <roycroft> so i'm thinking about using rods and pillow blocks for the linear rails on my router
[21:41:30] <PetefromTn_andro> Yeah ain't that bullshit
[21:41:37] <roycroft> dimensions again are 3'x, 2'y, and 8" z
[21:41:53] <roycroft> should i be looking at 20mm rods?
[21:42:02] <PetefromTn_andro> Most of the apps worth having are all like that
[21:42:02] <roycroft> or would 16mm likely suffice?
[21:42:03] <Tom_itx> you signed your privacy away when you took ownership
[21:42:35] <PetefromTn_andro> Go 20
[21:42:44] <CaptHindsight> roycroft: supported 20mm
[21:42:53] <roycroft> that's what i thought
[21:43:48] <roycroft> i'm not looking at this exactly, but products like it:
[21:43:49] <roycroft> http://www.ebay.com/itm/2-Set-SBR20-1500mm-20-MM-FULLY-SUPPORTED-LINEAR-RAIL-SHAFT-ROD-with-4-SBR20UU-/251022549100?pt=BI_Heavy_Equipment_Parts&hash=item3a721c206c
[21:44:33] <PetefromTn_andro> That's the stuff works decent
[21:45:04] <roycroft> thanks
[21:45:33] <roycroft> i've been looking at other ways of doing it but i'm concerned about rigidity, sag, and vibration with everything else
[21:45:35] <PetefromTn_andro> Try to hide them underneath the base of possible
[21:45:41] <CaptHindsight> roycroft: you have to be aware of suppliers that sell crunchy bearings
[21:45:51] <roycroft> those rails seem to be the best optoin
[21:46:03] <roycroft> it's hard to tell exactly what one is going to get on ebay
[21:46:17] <roycroft> unless one is willing to pay top dollar, and even then it isn't always a sure thing
[21:46:21] <roycroft> but yeah
[21:46:40] <roycroft> hmm
[21:46:42] <CaptHindsight> lots of positive feed back from SBR buyers
[21:46:55] <roycroft> sbr are what i'm looking at
[21:47:15] <CaptHindsight> only 1 negative on getting a crunchy bearing
[21:47:29] <roycroft> i'm going to have the gantry drive rail underneath the base already
[21:47:29] <CaptHindsight> "Not new!! Busted screw in rail, dirty, bearing not smooth. Looks like reject."
[21:47:47] <roycroft> i was going to put the linear rails on the sides
[21:47:59] <roycroft> but i'll give putting them underneath a thought
[21:48:21] <CaptHindsight> 4 neutrals on poor quality rails
[21:49:00] <PetefromTn_andro> Our German friend here has made several like I am suggesting and apparently it works quite well
[21:49:44] <roycroft> is he still around?
[21:49:46] <CaptHindsight> should have gotten Ich's mailing address in the woods
[21:49:51] <roycroft> you're talking about ich, i presume
[21:49:55] <roycroft> i haven't seen him in a while
[21:50:04] <Tom_itx> he's retired and left irc
[21:50:04] <CaptHindsight> he retired to become a park ranger
[21:50:08] <PetefromTn_andro> Yeah but not ich the other German LOL
[21:50:09] <roycroft> good for him!
[21:50:41] <roycroft> another german?
[21:50:46] <roycroft> is this the start of an invasion?
[21:50:54] <PetefromTn_andro> Can't remember his name offhand for some reason
[21:51:04] <CaptHindsight> probably up in a few more hours
[21:51:08] <CaptHindsight> Loet
[21:51:17] <PetefromTn_andro> Yup that's the one
[21:51:27] <PetefromTn_andro> Loetmichel
[21:51:45] <roycroft> i'll look for him
[21:52:06] <PetefromTn_andro> He builds them from some kinda fiberglass board of something
[21:52:06] <roycroft> those linear rails come with two pillow blocks per rail
[21:52:27] <roycroft> i was thinking about a double column gantry for greater rigidity
[21:52:34] <roycroft> that would take up a little more real estate
[21:52:43] <roycroft> or reduce the workspace
[21:52:53] <roycroft> but it might be worthwhile
[21:53:10] <PetefromTn_andro> I understand that if you use an angled gantry it can flex the bearings riders
[21:53:31] <ssi> https://pbs.twimg.com/media/BwvHJ1fIQAE2VPS.jpg:large
[21:53:32] <PetefromTn_andro> Carriage
[21:53:35] <ssi> now we're making some progress
[21:53:41] <ssi> 1/2" birch plywood, 20ipm
[21:54:01] <PetefromTn_andro> Dayum
[21:54:22] <PetefromTn_andro> Looks tight man
[21:54:26] <ssi> I'm not even gonna try 3/4" just yet
[21:54:31] <ssi> waiting on a 3" lens; that'll help immensely
[21:54:37] <zeeshan|2> ssi
[21:54:37] <XXCoder> 3 inches
[21:54:38] <zeeshan|2> looks nice!
[21:54:51] <ssi> thx :)
[21:55:03] <ssi> more power makes everything better!
[21:55:11] <PetefromTn_andro> How much was that big laser thingamajiggy?
[21:55:31] <ssi> about $1500 for tube, power supply, and shipping
[21:55:42] <PetefromTn_andro> WOW
[21:56:25] <PetefromTn_andro> And I thought my bearings were expensive LOL
[21:56:29] <ssi> :P
[21:56:53] <ssi> I think I have probably about $5500 in the whole machine now, if you don't count the 40W tube and supply
[21:56:55] <Tom_itx> you'll have to expand your workplace too to fit the tube!
[21:57:01] <zeeshan|2> ssi
[21:57:05] <zeeshan|2> cut some metal
[21:57:06] <zeeshan|2> !
[21:57:11] <ssi> zeeshan|2: yeah, thinking about that
[21:57:14] <ssi> I have a 1.5" lens
[21:57:27] <ssi> lemme see if I have any thin mild sheet
[21:57:48] <CaptHindsight> https://www.youtube.com/watch?v=HsVR6XGnWmQ Real Genius - 6MW laser
[21:58:11] <PetefromTn_andro> Did you ever fix you vibration or resonance problems you were having?
[21:58:15] <ssi> no
[21:58:19] <ssi> it's not really that much of a problem
[21:58:24] <ssi> only shows up in very very very fine detail
[21:58:36] <PetefromTn_andro> Aah okay
[21:59:15] <ssi> PetefromTn_andro: https://pbs.twimg.com/media/BvAkPmGIYAAbdEh.jpg:large
[21:59:21] <ssi> see the very very slight waviness in the lines?
[22:01:10] <CaptHindsight> or in the outline numbers?
[22:01:15] <roycroft> is the reason to put the rail underneath to help keep it clean?
[22:02:07] <ssi> yea
[22:02:28] <PetefromTn_andro> Cool beans. Man I love that movie
[22:02:41] <zeeshan|2> arent industrial lasers
[22:02:41] <roycroft> ok, i couldn't think of a mechanical reason
[22:02:46] <zeeshan|2> 6,000WW?
[22:02:48] <zeeshan|2> W
[22:03:48] <CaptHindsight> I can't believe that movie is 29 years old already
[22:04:25] <PetefromTn_andro> Jeez man don't say that Shit you're depressing me
[22:04:37] <zeeshan|2> im so young
[22:04:40] <zeeshan|2> that ive never seen that movie
[22:04:41] <zeeshan|2> !
[22:04:51] <PetefromTn_andro> Bite me
[22:04:58] <CaptHindsight> it's a classic
[22:04:59] <zeeshan|2> hehe
[22:05:01] <zeeshan|2> im exactly 29
[22:05:07] <zeeshan|2> so i was just born
[22:05:27] <PetefromTn_andro> Sometimes it seems like that Lol
[22:05:46] <PetefromTn_andro> ;)
[22:07:02] <PetefromTn_andro> Can you drive a sixteen penny nail thru a 2x4 with your penis? No well sorry a girls gotta have her standards LOL
[22:08:26] <CaptHindsight> some great lines in that film
[22:08:39] <PetefromTn_andro> I drank what?
[22:09:39] <PetefromTn_andro> Gonna have to see if it's on Netflix or something
[22:09:55] <CaptHindsight> the whole movie is on youtube
[22:10:23] <PetefromTn_andro> Ssi man ya got me jonesin to build some kinda other cnc here man way to go...
[22:10:44] <ssi> zeeshan|2: with the 2" lens, 2ipm makes a detectable groove in 26ga mild sheet
[22:10:47] <ssi> but it doesn't cut through
[22:11:07] <zeeshan|2> if you use a biigger lense
[22:11:12] <zeeshan|2> can you cut through?
[22:11:14] <ssi> shorter
[22:11:17] <ssi> I have a 1.5" on hand
[22:11:18] <zeeshan|2> okay
[22:11:18] <ssi> about to try it
[22:11:20] <PetefromTn_andro> Oh cool... I got YouTube on the big flatscreen in the family room
[22:11:21] <zeeshan|2> ssi
[22:11:28] <zeeshan|2> so with a 1.5" lense
[22:11:37] <zeeshan|2> you should technically be able to cut 26 gauge max?
[22:12:01] <ssi> in theory I should be able to cut like 0.040"
[22:12:04] <ssi> but I'm not sure I buy it :)
[22:12:15] <zeeshan|2> nice
[22:12:53] <ssi> the optics are a tradeoff between spot size, spot power density, and depth of field
[22:13:04] <PetefromTn_andro> Well Gonna get to sleep guys talk Manana
[22:13:11] <ssi> nite peet
[22:13:34] <PetefromTn_andro> Nite man enjoy your laserizing hehe
[22:25:35] <ssi> haha
[22:25:38] <ssi> steel is unfazed
[22:25:43] <ssi> oh well
[22:25:51] <ssi> might need o2 assist
[22:26:21] <XXCoder> alum?
[22:27:21] <ssi> alum is harder to cut than mild steel
[22:27:30] <XXCoder> really?
[22:27:30] <cabbage_breath> ssi: where did you get your ohmic clip
[22:27:45] <XXCoder> oh laser
[22:28:03] <ssi> cabbage_breath: I bought a set of duramax consumables off amazon and it had the omhic body in it
[22:32:51] <Connor> ssi what's causing the wavy lines ?
[22:33:29] <Tom_itx> his slides
[22:33:50] <Connor> Really?
[22:33:55] <Connor> That sucks.
[22:34:41] <ssi> no, it's not the slides
[22:34:53] <Tom_itx> i forgot what you said...
[22:35:03] <ssi> it's just lack of rigidity, plus the fact that the linuxcnc tp is infinite jerk
[22:35:11] <ssi> so whenever it changes direction, the machine shakes very slightly
[22:35:41] <ssi> crossbracing the frame would likely fix most of it
[22:35:47] <ssi> but it hasn't been much of an issue thus far
[22:36:32] <XXCoder> I suppose making frame heavier would help too
[22:36:49] <XXCoder> for high freq. stuff use that black stuff that converts high freq vibration to heat
[22:37:09] <ssi> the legs are 20mm extrusion
[22:37:14] <ssi> they're fairly spindly for how big a machine it is
[22:38:56] <XXCoder> http://www.myturbodiesel.com/wiki/soundproof-car-diy-to-reduce-noise/
[23:12:17] <humble_s1a_bass> wait why do you care
[23:12:38] <XXCoder> humble_s1a_bass: its for noises in car but for laser cnc, its for stability
[23:12:52] <humble_s1a_bass> oh. dampening
[23:13:00] <XXCoder> yeah
[23:13:17] <XXCoder> you can do lot with low freq, but high freq is hard
[23:13:45] <humble_s1a_bass> look at Mason Industries
[23:14:03] <humble_s1a_bass> you can Vibration isolation pads for all sorts of ranges
[23:14:11] <XXCoder> interesting
[23:14:20] <XXCoder> but then its easy to make machine rigit
[23:14:25] <humble_s1a_bass> but mass will be your number 1 friend
[23:14:25] <XXCoder> it leaves high frew
[23:14:29] <XXCoder> indeed
[23:17:24] <XXCoder> night
[23:26:36] <zeeshan|2> http://imgur.com/a/zBWXz
[23:26:37] <zeeshan|2> damn
[23:26:40] <zeeshan|2> his printer already printed it
[23:33:27] <Connor> zeeshan|2: What is it ?
[23:33:35] <zeeshan|2> cover for my electric motor
[23:34:05] <zeeshan|2> http://i.imgur.com/SB7HURH.jpg
[23:34:07] <zeeshan|2> to hide that nonsense
[23:34:33] <Connor> Didn't it have a plate ?
[23:34:39] <Connor> or the wire nuts too large ?
[23:34:49] <zeeshan|2> i got this motor like 5 years ago
[23:34:58] <zeeshan|2> and it didnt come with a plate
[23:35:07] <Connor> nice mosquito
[23:35:15] <zeeshan|2> and i cant find a replacement plate for it from dayton either
[23:35:18] <zeeshan|2> haha thanks
[23:35:26] <zeeshan|2> it prolly got electricuted