#linuxcnc | Logs for 2016-04-03

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[18:52:36] <zeeshan|2> input crap -> output golden egg
[18:53:46] <archivist> my B axis was so heavy on the mk1 XY that the friction was very high
[18:54:06] <Tom_itx> zeeshan|2, in your dreams
[18:55:49] <_methods> little shaper works
[18:55:52] <_methods> https://www.dropbox.com/s/f32nmqfxt42f6vb/2016-04-03%2017.33.41.mp4?dl=0
[18:57:29] <Polylaptopism> https://www.youtube.com/watch?time_continue=36&v=STkHmhuczL0 xzero machine pool cue
[19:14:28] <zeeshan|2> this is a noob q
[19:14:48] <zeeshan|2> but has anyone ever extended the shank of an end mill out of a collet
[19:14:55] <zeeshan|2> and done a deeper cut
[19:15:11] <zeeshan|2> for example if the end mill has a 1" LOC could you cut 1.25" with it
[19:15:29] <zeeshan|2> is the shank a bit undersized? :p
[19:16:48] <Tom_itx> i don't think it is
[19:18:42] <Tom_itx> zeeshan|2 how do you propose cutting 1.25 with a 1" loc?
[19:18:53] <zeeshan|2> cut 1" of materialk
[19:19:00] * Tom_itx realizes what zee meant
[19:19:00] <zeeshan|2> then go down another .25" and cut the remaining
[19:19:08] <Tom_itx> you could try it
[19:19:11] <zeeshan|2> ive done this with my 3 flut indexable
[19:19:14] <zeeshan|2> and it rubs
[19:19:20] <Tom_itx> well of course it will
[19:19:21] <zeeshan|2> and leaves a shit finish on the surface where it rubbed
[19:19:26] <Tom_itx> well of course it will
[19:19:36] <Tom_itx> but you're welcome to try it again
[19:19:39] <zeeshan|2> lol
[19:19:46] <zeeshan|2> maybe things will change? =P
[19:19:51] <zeeshan|2> in the case of the indexable end mill
[19:19:53] <Tom_itx> it will gauld the material
[19:20:01] <zeeshan|2> the inserts could be tiny bit smaller than the shank dia
[19:20:10] <zeeshan|2> which they are cause my parts always end up being oversized
[19:21:01] <zeeshan|2> i wonder if i have a 3 flute 1/4" end mill 1.25" loc
[19:21:04] * zeeshan|2 looks
[19:21:13] <zeeshan|2> itll save so many tool changes
[19:21:43] <Tom_itx> may also start to chatter
[19:29:07] <joem_> how do i add 0.001 units to the manual jog tab?
[19:30:24] <zeeshan|2> look under [DISPLAY]
[19:30:27] <zeeshan|2> INCREMENTS =
[19:30:52] <joem_> ahh perfect thx
[19:31:47] <Tom_itx> zeeshan|2 what type of contraint to use on an o-ring to a cylinder?
[19:31:50] <yasnak> HSS endmill, need to cut inconel. What feeds and speeds?
[19:32:01] <joem_> hmm my jog speed maxes at 12000 in/min which... is insane
[19:32:03] <joem_> can i lower that max
[19:32:06] <zeeshan|2> depends on what im trying to do with it tom
[19:32:13] <zeeshan|2> if im trying to see it in an o-ring groove
[19:32:17] <Tom_itx> yes
[19:32:23] <zeeshan|2> ill use the outer wall of the cylinder and tangent the oring
[19:32:29] <zeeshan|2> and then bottom wall of o-ring groove and another tanget
[19:32:49] <zeeshan|2> joem lol
[19:33:00] <Tom_itx> not sure where tangent is in catia...
[19:33:37] <zeeshan|2> yasnak: not going to happen :P
[19:33:41] <yasnak> ;)
[19:34:00] <yasnak> What about if it was coated tho
[19:34:53] <zeeshan|2> yasnak: i know drilling inconel
[19:34:57] <zeeshan|2> they recommend like 30 sfm
[19:34:59] <CaptHindsight> zeeshan|2: http://www.siliconbeat.com/2016/04/01/canadian-startup-uses-trump-lure-silicon-valley-techies/
[19:35:05] <yasnak> Maybe when its soft lol
[19:35:25] <yasnak> Eitherway happy sunday! I be kidding you ;)
[19:36:08] <zeeshan|2> joem_: http://linuxcnc.org/docs/2.6/html/config/ini_config.html#sub:DISPLAY-section
[19:36:29] <zeeshan|2> [traj] section
[19:36:32] <zeeshan|2> max_velocity
[19:36:55] <zeeshan|2> CaptHindsight: come on over
[19:37:52] <zeeshan|2> think clinton will win CaptHindsight?
[19:38:00] <zeeshan|2> you know regardless of who wins
[19:38:06] <zeeshan|2> the fact that trump is even up so high in the polls
[19:38:14] <zeeshan|2> means theres something fundamentally wrong with a typical american
[19:42:22] <CaptHindsight> zeeshan|2: sure, it's possible he can win, what you don't hear about anymore in the press is how there's no way to prove who actually gets the most votes
[19:43:07] <CaptHindsight> they make a big deal over voter fraud but they stopped talking about fraudulent vote counting
[19:43:48] <zeeshan|2> lol
[19:43:52] <CaptHindsight> zeeshan|2: I'd say the majority are just victims and don't realize it
[19:44:03] <CaptHindsight> it's like the battered wife
[19:44:05] <yasnak> "don't realize it"
[19:44:07] <yasnak> aka: dumb
[19:44:25] <CaptHindsight> they don't do anything until they hit rock bottom
[19:44:28] <zeeshan|2> i dont mean this in amean way
[19:44:33] <zeeshan|2> but im happy i dont live there
[19:44:37] <CaptHindsight> or like the addict/alcoholic
[19:44:39] <zeeshan|2> which really sucks balls because you have some amazing places
[19:44:46] <zeeshan|2> like yellowknife
[19:44:48] <CaptHindsight> yeah, it's sad
[19:44:50] <zeeshan|2> alaska
[19:44:51] <zeeshan|2> etc
[19:45:01] <zeeshan|2> i havent crossed the border for a decade now
[19:45:05] <CaptHindsight> why I live in the country now, the cities are far too depressing
[19:45:06] <zeeshan|2> and i live 35 min from it
[19:45:22] <yasnak> lol
[19:45:25] <yasnak> its not that bad
[19:45:25] <CaptHindsight> and I travel as much as possible
[19:45:34] <yasnak> but our politics are nothing short of a joke
[19:45:36] <zeeshan|2> yasnak: last time i went i got harassed at the border
[19:45:56] <CaptHindsight> zeeshan|2: coming or going from Canada?
[19:46:02] <zeeshan|2> going to usa
[19:46:09] <CaptHindsight> driving?
[19:46:11] <zeeshan|2> yes
[19:46:13] <zeeshan|2> going back no problem
[19:46:18] <zeeshan|2> "welcome to canada" the officer said
[19:46:19] <zeeshan|2> :)
[19:46:41] <zeeshan|2> i dont blame america though
[19:46:49] <zeeshan|2> i blame those isis bastards
[19:47:01] <zeeshan|2> anyone with a bit of tan on the skin is a terrorrist now because of them
[19:47:15] <CaptHindsight> well uhmerikans see Bernie as a far left wing radical but on the world scene he's a moderate that just wants us to join the rest of the civilized world
[19:47:18] <zeeshan|2> you know some of us just like to build cnc machines
[19:47:20] <zeeshan|2> and machine stuff
[19:47:21] <zeeshan|2> :)
[19:47:29] <yasnak> funny story
[19:47:45] <yasnak> so on our citizens they now put these things on that disable the machines if they are movesd
[19:47:48] <zeeshan|2> CaptHindsight: apparently people think bernie sanders is going to be giving out handouts
[19:47:57] <zeeshan|2> cause its very socialist or whatever
[19:48:02] <CaptHindsight> yeah, I don't even like to travel through the south
[19:48:06] <yasnak> so if you fronted and bought these citizens you couldn't go sell it to some iraq company, they'd be worthless
[19:48:22] <CaptHindsight> zeeshan|2: yeah, they are pretty clueless
[19:48:24] <yasnak> so yes, the usa has gone full retard
[19:49:16] <CaptHindsight> zeeshan|2: and another goof proportion think they will strike it rich someday so they vote for laws against themselves just in case they get rich
[19:49:22] <CaptHindsight> goof/good
[19:49:25] <zeeshan|2> lol
[19:49:39] <yasnak> I think we just need to build a wall
[19:49:45] <zeeshan|2> i agree on the wall
[19:49:48] <zeeshan|2> lol
[19:49:49] <zeeshan|2> jk
[19:49:52] <yasnak> on the florida border
[19:50:02] <zeeshan|2> is florida pretty racist?
[19:50:11] <CaptHindsight> all around Texas :)
[19:50:12] <yasnak> I was moved here for work
[19:50:21] <yasnak> Florida is the most pathetic state I've ever lived in
[19:50:24] <djdelorie> can we build a wall around the politicians?
[19:50:29] <yasnak> That too
[19:50:40] <yasnak> I was thinking we could do some gladiator type shit
[19:51:34] <CaptHindsight> https://www.youtube.com/watch?v=sGUNPMPrxvA President Camacho's State of the Union
[19:52:06] <yasnak> lol
[19:52:11] <zeeshan|2> LOL
[19:52:23] <yasnak> This movie is so much more famous now then ever
[19:52:33] <CaptHindsight> zeeshan|2: I might be to old to get enough points
[19:53:11] <CaptHindsight> zeeshan|2: I think the only sure way for me to emigrate is farm something 100+ miles from the nearest large city
[19:53:18] <yasnak> capt: https://www.youtube.com/watch?v=O4DteLV6mts
[19:53:33] <CaptHindsight> or bring some tech with
[19:56:18] <CaptHindsight> snow yesterday, still 72F right now and snow again tomorrow
[19:56:34] <yasnak> yeah dad just sent me a picture, 31 and snowing in wisconsin
[19:57:35] <skunkworks> yasnak: were in WI?
[19:57:46] <yasnak> door county
[19:57:51] <skunkworks> way north
[19:57:58] <yasnak> yea
[19:58:00] <skunkworks> it was 60's today
[19:58:07] <skunkworks> near lacrosse wi
[19:58:18] <yasnak> vikings fan?
[19:58:20] <CaptHindsight> Door County is nice
[19:58:36] <skunkworks> don't really follow sports.
[19:58:39] <yasnak> ah
[19:58:44] <CaptHindsight> I'm not far from Lake Geneva
[19:58:45] <yasnak> good response :0
[20:00:12] <skunkworks> we are spread out as far as we could be...
[20:00:44] <skunkworks> for wisconsin
[20:01:15] <skunkworks> I don't think I have been to door county yet.
[20:01:26] <CaptHindsight> jdh: Munson Marine had 1/2" HDPE but it's ~$20 sq ft
[20:01:30] <yasnak> Its not bad
[20:01:32] <skunkworks> went to the apostle isles
[20:01:36] <yasnak> Born and raised there, very small
[20:01:47] <yasnak> One school for entire district. Pre-12th is 600 kids haha
[20:01:57] <skunkworks> heh
[20:02:18] <skunkworks> did you live on fudge?
[20:04:30] <sabrex> ikea has 1/4" hdpe for about 2$ per sq foot
[20:04:39] <djdelorie> mmm... fudge...
[20:04:58] <CaptHindsight> wanted 3/4", settled on 1/2"
[20:05:23] <CaptHindsight> 1/4" is typical cutting board thickness
[20:08:57] <yasnak> did i live on fudge?
[20:09:15] <yasnak> That question is weird, we have fudge places yeah....but mainly farms and cherry trees.
[20:09:54] <yasnak> My parents own a few resorts, chains are not allowed there so most people owned businesses.
[20:12:18] <yasnak> yeah, 2-4 inches of snow for tuesday night up there
[20:23:15] <zeeshan|2> snow needs to go away
[20:23:15] <zeeshan|2> ;[
[20:24:02] <zeeshan|2> weather.ca is the worst website ever
[20:24:03] <zeeshan|2> =/
[20:54:53] <Tom_itx> zeeshan-mill, i just did an offset constraint from the center
[20:55:40] <Tom_itx> i suppose i'll try the sphere (ball bearing) the same way
[20:56:44] <bobo_> BeachBumPete: so how was your day pounding sand ? and when are you getting a house and back to maching ?
[20:57:40] <bobo_> what a slaker you are turning into
[20:57:55] <zeeshan-mill> =]
[20:59:15] <BeachBumPete> bobo_ hey man I am a busy guy over here ;)
[22:04:44] <XXCoder> zeeshan-mill: yo
[22:09:14] <zeeshan-mill> HI
[22:09:25] <XXCoder> hows things there
[22:09:30] <zeeshan-mill> good
[22:09:32] <zeeshan-mill> machining away
[22:09:39] <XXCoder> nice
[22:09:39] <zeeshan-mill> i think i blew another fuse in the z drive braking circuit
[22:09:42] <zeeshan-mill> peck drilling
[22:09:43] <zeeshan-mill> hm
[22:10:30] <XXCoder> better fuse than something else
[22:10:44] <zeeshan-mill> this happened last night too
[22:10:45] <zeeshan-mill> hmm
[22:10:47] <zeeshan-mill> during pecking
[22:10:56] <zeeshan-mill> it really doesnt like speed pecking
[22:11:03] <zeeshan-mill> cause there is a lot of decels involved
[22:11:05] <XXCoder> maybe it brakes very often so it blows
[22:11:09] <zeeshan-mill> yes
[22:12:04] <zeeshan-mill> yep
[22:12:06] <zeeshan-mill> its the damn fuse
[22:13:39] <XXCoder> maybe get a blessed one
[22:13:44] <XXCoder> it might run better lol
[22:14:02] <XXCoder> you may beed to use multimeter as its pecking
[22:14:07] <XXCoder> see whats happening power wise
[22:14:23] <zeeshan-mill> its over volting
[22:14:33] <zeeshan-mill> the resistor isnt big enough
[22:14:47] <djdelorie> the resistor isn't *small* enough you mean
[22:14:53] <zeeshan-mill> small enogh youre right
[22:14:58] <zeeshan-mill> djdelorie, think i can replace it with a 5 ohm
[22:14:59] <zeeshan-mill> 100W
[22:15:13] <djdelorie> it's a 20 now, right?
[22:15:13] <zeeshan-mill> i cant physically see how the voltage compartor circuit works
[22:15:15] <zeeshan-mill> 10
[22:15:41] <XXCoder> changing 10 ohm to 5 means less resistance
[22:15:44] <zeeshan-mill> im worried that me allowing more current thru the resistor messes some other circuit up
[22:15:48] * Tom_itx gives zeeshan-mill a whole box of fuses and a piece of copper pipe JIC
[22:16:00] <djdelorie> if you have half the ohms, you need twice the watts rating, and twice the amps
[22:16:15] <zeeshan-mill> yes but twice the amps are going thru what?
[22:16:17] <zeeshan-mill> just the resistor
[22:16:21] <djdelorie> and the switch
[22:16:29] <zeeshan-mill> i dunno where the heck the switch is for this
[22:16:38] <zeeshan-mill> i can see one pcb trace doing to a 33A transistor
[22:16:42] <zeeshan-mill> irfp250
[22:16:44] <djdelorie> it's probably a solid state one built into the circuit
[22:16:55] <Tom_itx> make it glow
[22:16:57] <zeeshan-mill> *doing , going i mean
[22:17:24] <djdelorie> IRFP250 is rated 30 amps
[22:17:48] <djdelorie> (but not forever :)
[22:19:05] <zeeshan-mill> lol
[22:19:08] <zeeshan-mill> the fuse is only 3 amp
[22:20:17] <djdelorie> if you cut the resistor down you'll need a 6 amp fuse. Check to see if the wires need beefing up too, although 6 amps isn't much
[22:22:03] <zeeshan-mill> the wires are 12 gauge
[22:22:08] <djdelorie> plenty
[22:22:10] <zeeshan-mill> the pcb trace pretty wide
[22:22:15] <zeeshan-mill> that connects to the wire
[22:22:28] <zeeshan-mill> cant i put two 10 ohm resistors
[22:22:32] <zeeshan-mill> with 50w rating in parallel
[22:22:44] <djdelorie> that's better than one 5 ohm yes, mostly for heat dissipation
[22:22:52] <zeeshan-mill> okay awesome!
[22:22:58] <zeeshan-mill> ill try this asap im done the mandatory parts
[22:23:07] <djdelorie> as long as it's the same or higher wattage as the original
[22:23:16] <zeeshan-mill> cause for the remaining parts i can deliver up to 4 weeks
[22:23:23] <zeeshan-mill> yes
[22:23:29] <zeeshan-mill> i have spare parts from an identical drive
[22:23:46] <djdelorie> or you could just turn down your Z deceleration :-)
[22:23:53] <zeeshan-mill> i did!
[22:23:54] <zeeshan-mill> it still blew
[22:24:02] <djdelorie> make sure you're using slow blow fuses
[22:24:03] <zeeshan-mill> i went from 14.5 to 12
[22:24:06] <zeeshan-mill> i am
[22:24:11] <zeeshan-mill> the fuse came from the other spart parts drive
[22:24:23] <djdelorie> although the spec says "motor delay" not "slow blow" - those might be even slower
[22:24:54] <djdelorie> if you're still blowing fuses, turn it down more :-)
[22:29:53] <zeeshan-mill> lol
[22:30:18] <zeeshan-mill> so the resistor is trying to drop the voltage right?
[22:30:32] <XXCoder> or a penny ;) (seriously, dont)
[22:31:11] <djdelorie> when you decelerate, the motors act like generators - turning momentum into electrical power.
[22:31:16] <djdelorie> THe electrical power has to go *somewhere*
[22:31:20] <XXCoder> indeed
[22:31:30] <zeeshan-mill> yes i understand that
[22:31:34] <djdelorie> normally it charges up the caps in the power supply, but if the rail gets to high, you have to bleed off the extra
[22:31:40] <djdelorie> the resistors bleed off the extra
[22:31:42] <zeeshan-mill> so it tries to overvolt
[22:31:48] <zeeshan-mill> and tries to the fry the capacitors in the power supply
[22:32:00] <djdelorie> they discharge the power supply's caps until the voltage is normal
[22:32:08] <XXCoder> add few supercaps ;)
[22:32:13] <zeeshan-mill> how does it know that the bus voltage is in decel mode?
[22:32:19] <zeeshan-mill> is that where the voltage comparator comes in?
[22:32:29] <zeeshan-mill> it sees if the commanded voltage is negative
[22:32:39] <djdelorie> in my power supply, I added extra caps and rated them much higher than the rail voltage, to absorb decels and use that for later power
[22:32:41] <zeeshan-mill> and if it is, it knows its an overvolt condition?
[22:32:55] <djdelorie> no, it looks for a too-high voltage. If you have a 200V supply, it might be set at 220V
[22:33:02] <zeeshan-mill> ah!
[22:33:21] <zeeshan-mill> okay then the voltage comparator circuit shouldnt care about the resistor
[22:33:24] <zeeshan-mill> but the switch cares
[22:33:31] <zeeshan-mill> put too much current thru it and it fries
[22:33:39] <djdelorie> normally the power supply charges up the caps and the motor drains them down. When the motor charges it up is when you need the resistor
[22:33:43] <zeeshan-mill> ill post a pic of the switch in a few if youre still up
[22:33:50] <djdelorie> right, the comparator sees "voltage too high" and just turns on the resistor
[22:34:04] <djdelorie> I'll be here for a bit, yes.
[22:35:04] <djdelorie> the shunt regulator is literally an "oh crap" detector
[22:35:21] <zeeshan-mill> whoever came up with allowing ini to be modified directly from linuxcnc on the fly
[22:35:23] <zeeshan-mill> is a genious
[22:35:29] <zeeshan-mill> i just set max velocity to 15 ipm
[22:35:39] <zeeshan-mill> so i can finish the job in limp mode
[22:35:40] <zeeshan-mill> :D
[22:36:33] <XXCoder> I guess pecking point is to keep hole clear of chips
[22:36:37] <zeeshan-mill> yes
[22:36:41] <zeeshan-mill> i got some very deep holes
[22:36:42] <XXCoder> making hole more accurate
[22:36:46] <zeeshan-mill> relative to drill size
[22:36:51] <XXCoder> thats what she said
[22:40:20] <zeeshan-mill> lol
[22:46:02] <XXCoder> so what ya making
[23:21:17] <CaptHindsight> https://ibin.co/2cYXfVkQq7Vb.png 200mm chuck, tests fine up to 11K rpm so far
[23:27:29] <XXCoder> the white thing?
[23:27:46] <CaptHindsight> white wafer chuck
[23:29:26] <XXCoder> whats you using it to cut?
[23:31:38] <CaptHindsight> it doesn't cut, it just spins https://www.youtube.com/watch?v=4q8V3eGadzY
[23:32:37] <XXCoder> interesting
[23:32:59] <XXCoder> was it in darkness?
[23:33:08] <CaptHindsight> it's one method of creating thin coatings on flat parts
[23:33:59] <CaptHindsight> https://www.youtube.com/watch?v=CyExUbrWT9A
[23:34:47] <XXCoder> LOL
[23:34:53] <XXCoder> LSD trip
[23:37:38] <zeeshan|2> XXCoder: http://i.imgur.com/aCKopff.jpg
[23:37:39] <zeeshan|2> that
[23:37:50] <XXCoder> wow that is nice
[23:38:05] <XXCoder> as usual I cant even begin to figure what its for,
[23:38:14] <zeeshan|2> not sure hehe
[23:38:16] <CaptHindsight> bottle opener
[23:38:18] <zeeshan|2> i know it is for rescue
[23:38:26] <zeeshan|2> rescue equipment
[23:38:27] <XXCoder> resuce beer cans got it
[23:38:47] <zeeshan|2> im really happy with the surfac efinish
[23:38:49] <CaptHindsight> stuck pickle jars
[23:38:54] <zeeshan|2> all faces reflect
[23:38:54] <XXCoder> indeed looks nice
[23:38:54] <zeeshan|2> :D
[23:45:41] <CaptHindsight> zeeshan|2: so hows the burning the candle at both ends going?
[23:45:50] <zeeshan|2> ?!?
[23:46:04] <CaptHindsight> working multiple jobs
[23:46:18] <zeeshan|2> tiring :P
[23:46:42] <zeeshan|2> i got the g-code tuned so its ready for a button pusher
[23:46:55] <CaptHindsight> at the home shop?
[23:46:56] <zeeshan|2> im hiring my buddy to run the machine for 2 days
[23:46:58] <zeeshan|2> yes
[23:47:00] <XXCoder> college and machining eh
[23:47:09] <zeeshan|2> full time work
[23:47:11] <zeeshan|2> nad machining :P
[23:47:13] <zeeshan|2> and college!
[23:47:19] <zeeshan|2> but college is only one day a week
[23:47:35] <CaptHindsight> zeeshan|2: hows is that white photopolymer working out on the metal?
[23:47:51] <zeeshan|2> i dont think they have tried it
[23:47:52] <zeeshan|2> lol
[23:47:56] <zeeshan|2> you know how academia is
[23:47:58] <zeeshan|2> slow
[23:48:18] <CaptHindsight> I'll be making a Toronto trip soon
[23:48:27] <CaptHindsight> have to renew my passport
[23:48:58] <CaptHindsight> some countries require the expiration to be 6+ months out
[23:49:18] <CaptHindsight> and if you renew too early you get flagged for suspicious
[23:50:19] <CaptHindsight> it's like everything is at 5th grade level
[23:50:57] <XXCoder> zeeshan|2: one point I had internship, college, AND weekend job!
[23:51:06] <XXCoder> I was busy as heck that quarter
[23:51:22] <XXCoder> something to do each day
[23:51:38] <zeeshan|2> better to be busy
[23:51:39] <zeeshan|2> than not
[23:51:53] <XXCoder> yeah
[23:52:04] <XXCoder> I need to get my machine working bahh
[23:53:34] <zeeshan|2> doooooo it
[23:54:01] <XXCoder> nah getting late and garage still has no room unfortunately.