#linuxcnc | Logs for 2019-03-19

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[00:06:17] <Elmo40> I went and bought the rubber motor couplers. I must say, they are WAY more accurate than the coiled springy style I had before!
[00:06:33] <Elmo40> Now all my Z steps are itentical.
[00:07:28] <Elmo40> and tool kick-back is not nearly as noticable. I do believe I need larger steppers, but that is a whole other storey ;-)
[00:09:19] <Elmo40> I did notice that going ~5% deeper on a cut was possible with these couplers over the previous ones. The gantry didn't lose any steps. When I went ~10% deeper, it was all wonky from left to right.
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[00:15:55] <Wolf__> oldham couplers are even better imo
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[00:31:30] <Elmo40> are they available in 5/16" / 8mm shaft size?
[00:33:11] <Elmo40> https://qurl.org
[00:33:13] <Elmo40> like this?
[00:33:18] <Elmo40> the 3pc couplers?
[00:37:19] <pink_vampire> Elmo40: this is a spider couplers
[00:37:34] <Elmo40> no. that is oldham. it is only 2-slot
[00:37:50] <Elmo40> spider is a 3-slot
[00:38:07] <pink_vampire> i saw that now
[00:38:25] <pink_vampire> yeah, my bad
[00:38:46] <pink_vampire> i have spider on my machine
[00:38:46] <Wolf__> yeah, but I like the acetal disk zero backlash ones
[00:40:41] <Wolf__> made by RULAND
[00:40:59] <Wolf__> https://i.imgur.com
[00:41:37] <pink_vampire> RULAND is the one i have also
[00:41:51] <Elmo40> damn they are pricey couplers!!
[00:42:06] <Wolf__> got mine from mcmaster
[00:42:07] <Elmo40> i'm on their site
[00:42:29] <pink_vampire> but you want to drive a very large machine
[00:42:59] <Elmo40> this is for a different project. smaller. only 8mm shaft
[00:43:06] <Elmo40> the bridgeport will need something larger ;-)
[00:43:06] <pink_vampire> you can make oldham very easy
[00:43:16] <Elmo40> https://www.ruland.com
[00:43:28] <Elmo40> $50/coupler???
[00:43:49] <pink_vampire> that sounds correct
[00:43:55] <Wolf__> cheaper via mcmaster
[00:44:01] <Wolf__> I think
[00:44:49] <Elmo40> my mistake... even MORE expensive!
[00:44:49] <Elmo40> https://qurl.org
[00:44:57] <Wolf__> under Clamping High-Parallel-Misalignment Flexible Shaft Couplings
[00:44:58] <Elmo40> i'll check mcmaster carr
[00:45:15] <Wolf__> or setscrew
[00:47:05] <Elmo40> https://www.mcmaster.com
[00:47:06] <Wolf__> setscrew are $13.08 for up to 4-8mm 3/16”-3/8”
[00:47:27] <Wolf__> yup
[00:48:07] <Wolf__> not as terrible as the msrp
[00:48:16] <Wolf__> and they are Ruland brand
[00:48:26] <Elmo40> ok, acetal or nylon?
[00:48:50] <pink_vampire> i have some red spider
[00:49:02] <Wolf__> depends on torque needed
[00:50:14] <Wolf__> I’m using 3/4” OD type w/ acetal disk on a 420oz-in machine
[00:50:46] <Wolf__> and have drove the vice right though a 3/8” end mill breaking in clean off with out missing a beat lol
[00:52:07] <pink_vampire> https://www.ruland.com i think those are the ones i have on my g0704
[00:52:30] <Elmo40> Wolf__, what did you do that for?
[00:52:37] <Elmo40> forgot to clear the Z before a rapid?
[00:52:46] <Wolf__> typo in mdi lol
[00:54:39] <pink_vampire> https://i.imgur.com 3/4" 4f
[00:59:56] <Wolf__> 0.o I thought pink only likes small things ;P
[01:00:23] <pink_vampire> nooo
[01:01:00] <pink_vampire> https://i.imgur.com
[01:02:08] <pink_vampire> https://i.imgur.com
[01:02:43] <Wolf__> still small lol
[01:03:03] <pink_vampire> https://i.imgur.com
[01:03:12] <pink_vampire> https://i.imgur.com
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[01:03:25] <pink_vampire> https://i.imgur.com
[01:04:31] <Wolf__> looks big =D
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[01:05:25] <Jymmm> Um, 9v battery in a pile of metal swarf is probably not a good thing =)
[01:06:01] <Jymmm> pink_vampire: and what are you doing with a 9ft long match stick?
[01:06:08] <Wolf__> doesn’t that nut short out the path on those balls
[01:06:37] <Jymmm> Wolf__: It's a non conductive metalic nut silly
[01:07:10] <Wolf__> oh right, I have lots of that
[01:07:30] <pink_vampire> it was a test
[01:11:31] <Jymmm> Done... https://i.imgur.com
[01:12:20] <Wolf__> pre or post reg?
[01:12:45] <Wolf__> nm that would have to be post reg
[01:13:03] <Jymmm> post main 250gal tank reg
[01:13:51] <Jymmm> Which kinda sucks, sorta
[01:14:25] <Wolf__> pressure/flow drop on anything high draw
[01:14:59] <Jymmm> There are regualtors on the gen and heater, so the double reg doesn't work
[01:15:34] <Wolf__> yeah
[01:17:48] <Jymmm> I really dont liek the idea that I can't use bbq tanks if I remove the regulators
[01:18:35] <Jymmm> But I have male and female acme connectors, so I'll toss a regulator between them and use as an adapter, I guess.
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[02:49:26] <net|> https://www.ebay.ca
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[03:59:27] <Deejay> moin
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[04:26:32] <pink_vampire> hi
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[05:25:01] <XXCoder> yo
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[05:31:55] <pink_vampire> hi XXCoder
[05:32:25] <XXCoder> record breaking for march hot here
[05:32:29] <XXCoder> 73f jeez
[05:41:18] <pink_vampire> here is cold again
[05:46:20] <XXCoder> by friday it'll be back to 50s f normal for late winter
[05:46:32] <XXCoder> but 73f worry me
[05:46:39] <XXCoder> summer may well be recordbuster
[05:55:08] <jthornton> morning
[06:13:50] <pink_vampire> hi jthornton
[06:15:51] <XXCoder> hey jthornton recordbreaking temperate here heh
[06:15:53] <XXCoder> was 73f
[06:16:20] <jthornton> ours are pretty normal for this time of year
[06:16:24] <jthornton> morning pink_vampire
[06:16:52] <pink_vampire> https://www.youtube.com
[06:16:52] <XXCoder> first record since 1940s snow, then now record hottest march ever
[06:18:18] <pink_vampire> look very interesting video
[06:21:53] <XXCoder> lol
[06:22:07] <XXCoder> linkedin recommanded me machinist job at company i work at.. as machinist
[06:24:43] <sensille> so you're in the best possible position already :)
[06:25:03] <XXCoder> unless its to replace me lol
[06:26:09] <XXCoder> from linked in message: "If you're interested in exploring how your existing passenger data can achieve the same results for your airline, visit our website."
[06:26:19] <XXCoder> yeah where is my airline dammit
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[06:29:10] <pink_vampire> i need an idea
[06:29:23] <XXCoder> what kind of idea?
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[06:29:46] <pink_vampire> how to make super small core for a probe
[06:30:21] <jthornton> I used to get asked how long will it take to develop this and my answer was how long does it take to come up with an idea?
[06:31:59] <XXCoder> not sure what "core" is. is it inside part with 3 pins and where spring presses on it?
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[06:32:01] <weenerdog> howdy
[06:32:04] <XXCoder> hey
[06:32:08] <pink_vampire> i also want it with metal m2 thread in the middle
[06:32:10] <weenerdog> sup
[06:32:14] <Tom_L> morning
[06:32:20] <pink_vampire> hi weenerdog
[06:32:24] <XXCoder> probably best with lathe?
[06:32:35] <XXCoder> then use 6 sided block to drill 3 holes for pins
[06:33:45] <pink_vampire> but you cant use conductive material
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[06:35:55] <Tom_L> pink_vampire, http://fadedbits.com
[06:35:59] <Tom_L> size it down
[06:36:39] <Tom_L> http://www.vinland.com
[06:38:09] <pink_vampire> Tom_L: "three 0.125? steel dowel pins pressed into"
[06:38:52] <Tom_L> size it down
[06:39:36] <pink_vampire> it will be very difficult to scale down press fit and also get it very stiff
[06:40:05] <Tom_L> what size are you looking for?
[06:40:09] <Tom_L> sub micron?
[06:40:37] <pink_vampire> total OD 12mm
[06:40:49] <pink_vampire> with 1/8" shank
[06:41:02] <Tom_L> so now you have your idea
[06:41:05] <Tom_L> run with it
[06:41:52] <Tom_L> http://tom-itx.no-ip.biz:81
[06:41:58] <Tom_L> i made a few different ones
[06:42:49] <Tom_L> https://www.carbideprobes.com
[06:42:52] <Tom_L> probe tips
[06:43:56] <pink_vampire> what is the OD of the body for the smaller probe you made?
[06:44:07] <Tom_L> i don't remember
[06:45:09] <Tom_L> http://tom-itx.no-ip.biz:81
[06:45:14] <Tom_L> the mat is 2" squares
[06:48:12] <pink_vampire> so it is about what i have now
[06:54:15] <pink_vampire> https://i.imgur.com
[06:54:50] <XXCoder> i want to make a probe, but it have to be very unusual design :(
[06:55:29] <pink_vampire> XXCoder: ?
[06:55:43] <pink_vampire> what kind of a design?
[06:55:58] <XXCoder> my cnc router is very shallow
[06:56:08] <XXCoder> which means probe body must be short
[06:59:11] <pink_vampire> mmm maybe all you need is to mount next to the spindle
[06:59:11] <Tom_L> use a last word indicator tip for starters
[06:59:40] <XXCoder> eh kinda dont wanna calculate offsets, but maybe
[07:01:39] <XXCoder> for a while point is kinda moot, no space to run machine :(
[07:01:55] <pink_vampire> what is your Z travel from the spindle to the top of the material?
[07:02:04] <XXCoder> 2 inches lol
[07:02:28] <pink_vampire> 2" is fine
[07:02:50] <XXCoder> the shorter the probe is, the higher part i can probe
[07:03:00] <XXCoder> i want to try curved surface engrave :)
[07:04:13] <pink_vampire> maybe piazzo electrical probe?
[07:04:38] <XXCoder> isnt that require conductive material?
[07:05:26] <pink_vampire> no
[07:08:10] <XXCoder> interesting
[07:11:47] <XXCoder> i read news about myspace losing 50 million songs. my first thought: "myspace still exists?" lol
[07:13:11] * Loetmichel just went to the city office, registered the new old car... MAAAN is that insurance expensive in germany... 900 eur a year for a 2001 BMW 525i wagon. but it drives well. so i am happy ;)
[07:13:36] <XXCoder> that insurance is cheaper than mine
[07:13:47] <XXCoder> mines bit over $100 usd a month
[07:14:09] <XXCoder> but then mine is 2012 car lol
[07:14:16] <Loetmichel> only for others, doesent pay for glass or own damage, no idea what thats called in english
[07:14:32] <XXCoder> libility only
[07:14:35] <Loetmichel> the basic mandatory insurance
[07:14:38] <XXCoder> yeah mines full
[07:14:45] <pink_vampire> XXCoder: https://www.youtube.com
[07:15:19] <XXCoder> with that my cnc router can probe surface ;)
[07:15:25] <XXCoder> with no stock
[07:15:32] <XXCoder> but interesting
[07:15:44] <Loetmichel> i bought the car for 2100 eur. by the time its 2 year road legal test expires it will have cost me more in insurance and tax than i bought it ;)
[07:15:54] <XXCoder> z only probing may be useful for some uses.
[07:16:00] <XXCoder> not bad idea hmm
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[08:10:13] <Elmo40> Loetmichel, that is always the method.
[08:10:25] <Elmo40> purchasing the car is the least expensive payment in owning a car!
[08:10:46] <Elmo40> insurance and repairs and fuel. that will out cost the price of any vehicle.
[08:13:22] <Loetmichel> Elmo40: its a 2001 car. it was to be expected
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[08:13:43] <Loetmichel> but i didnt think its liability insurance would be quite THAT high
[08:14:04] <Loetmichel> its not the classic "kids first car" after all
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[08:22:06] <Elmo40> does anyone use ncedit or ncview. i don't remember what it is called now. i used it ~10 years ago to view gcode files as a tool path
[08:22:22] <Elmo40> very lightweight program, allows you to edit the code on the spot and you see the new tool path.
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[08:53:22] <rmu> Loetmichel: a 15year+ BMW somethingsomething with too much PS _is_ a typical kids first (and often last) car around here.
[08:58:23] <Loetmichel> rmu: true
[08:58:36] <Loetmichel> but usually the 3 series
[08:58:41] <Loetmichel> not the 5 series
[08:58:48] <Loetmichel> and not the station wagon ;)
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[10:27:45] <Deejay> re
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[12:01:21] <Loetmichel> gnhihi, i like that MoI "cad"... took me about an hour to learn how to do a mailbox lock in it with virtually no knowledge how 3d design works... its already printing ;)
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[12:06:31] <Loetmichel> ... what i like about 3dprinting is that the idea->tangible result is so fast... about 1 hour of design, 18 min print and i will know it that thing fits into the paper towel spender ;)
[12:43:17] <Loetmichel> *NIIICE* fits first try... i like it when a plan comes together:-) -> http://www.cyrom.org
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[12:57:20] <rmu> Loetmichel: https://youtu.be
[12:58:16] <Loetmichel> rmu: thats where that quote is from, indeed
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[13:19:30] <Tom_L> sounds like Loetmichel didn't do his homework before geting a car
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[14:01:04] <Loetmichel> Tom_L: hmm?
[14:01:09] <Loetmichel> why do you think that?
[14:01:45] <Loetmichel> you mean because i was surprised HOW expensive the insurance is?
[14:02:05] <Loetmichel> i knew it would be expensive, i just didnt expect it to be THAT much
[14:03:29] <Loetmichel> in hindsight its reasonable thoug. i pay ~600 a year for the Omega, BUT that is registered by my wife which has the maximum 65% discount because of 8 years or more no accidents.
[14:03:41] <Loetmichel> +h
[14:04:02] <Loetmichel> s/by/to
[14:09:20] <Wolf__> my one truck is $1600usd/yr for insurance
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[14:13:24] <Loetmichel> Wolf__: only liability though here
[14:14:07] <Wolf__> thats $1mil liability and full replacement on $80k truck
[14:21:12] <Wolf__> my car is around $700/yr full coverage =)
[14:23:38] <Loetmichel> yeah, in germany is expensive to own a car
[14:23:40] <Loetmichel> :-)
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[15:30:27] <pink_vampire> hi everyone
[15:38:40] <a-u> howdy
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[15:56:23] <XXCoder> yo
[15:57:33] <pink_vampire> hi XXCoder & a-u
[16:02:01] * jym rubs against pink_vampire... what about me???
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[16:02:25] <XXCoder> i wouldnt do that she has mafia friends
[16:02:37] <XXCoder> one should be tapping your shoulder soon jym
[16:02:38] <pink_vampire> LOL
[16:03:36] <pink_vampire> jym: don't take it to crazy, i just login from this computer
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[16:05:14] <gregcnc> polish mafia?
[16:05:53] <jym> pink_vampire: crazy? how?
[16:06:09] * jym nods at gregcnc
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[16:06:24] <gregcnc> anyone use industrialmetalsales.com for aluminum?
[16:07:13] <a-u> yes - but it was some years back -- found other suppliers since
[16:07:40] <gregcnc> why did you switch?
[16:08:32] <pink_vampire> I got stuff from onlinemetals.com
[16:08:46] <gregcnc> jymmm is it warming up over there?
[16:08:48] <a-u> I believe the order was good, UPS shipping was OK - almost certainly it was price.
[16:09:39] <gregcnc> it's the cheapest I've found
[16:09:41] <jymmm> gregcnc: Actually yes, in tshirt and sandls today, warmest day so far =)
[16:10:10] <gregcnc> for small 6061 rounds
[16:10:33] <gloops> scrap ally is everywhere
[16:11:04] <gregcnc> gloops I don't need swarf?
[16:11:17] <gloops> cast your own gregcnc
[16:11:24] <gregcnc> fuck that
[16:11:47] <gregcnc> i making product not scrap
[16:11:54] <a-u> Lowest price seems the main thing. Right - or put in a foundry and recycle local scrap - lol.
[16:11:56] <gloops> haha, dont tell me youre one of these metalworkers that doesnt like fire?
[16:12:14] <pink_vampire> for aluminum i like the 2024-t3 over the 6061
[16:12:55] <gregcnc> my parts are small, but local sources are pretty high
[16:13:40] <gloops> well, a gingery type furnace - melt a kilo or 2 at a time
[16:14:12] <gloops> i dunno what the application is, but you cant get better than free blanks
[16:16:43] <gregcnc> really? even if I was making castings, I'd buy real ingots vs cutting up engine blocks or whatever
[16:17:28] <XXCoder> for professional parts i wouldnt be using scrap melt and casting. more 'mystery' metal in those
[16:17:31] <methods_> random aluminum lol
[16:17:45] <gregcnc> grade 123456....
[16:17:47] <methods_> 60615052
[16:18:00] <XXCoder> parts made in shop i work at some of em require certified materials also. which expire in a year.
[16:18:27] <gloops> you dont have to use crappy engine castings when there are plenty of pop cans around
[16:18:56] <jymmm> pop cans have a higher value recycled then repurposed
[16:19:06] <gregcnc> how much do you pay yourself to pick cans off the street?
[16:19:15] <gloops> well the chinese seem to get by using them
[16:19:16] <XXCoder> sadly shop really screwed up, they expected to be able to make those specific parts so order toooons of alum blocks. then oops cant make those parts
[16:19:38] <methods_> you don't have an army of crack heads you pay to collect cans for you?
[16:19:48] <XXCoder> year later material certification expired. so we have so many blocks ready for usage as making test parts or fixture or whatever.
[16:20:16] <gloops> ive got a couple of tonnes of scrap ally, i was going to melt it down, but you know..too busy etc lol
[16:20:17] <gregcnc> I didn't know metal expired
[16:20:31] <jymmm> gregcnc: Look for the "best by" date =)
[16:20:49] <XXCoder> gregcnc: metal doesnt, but certifications do.
[16:20:50] <gregcnc> exactly, time is most valuable
[16:20:59] <methods_> the cert might for certain grades of alum
[16:21:15] <methods_> especially if it's like T0 or something like that
[16:21:23] <methods_> 6061-T0
[16:21:26] <methods_> T1
[16:21:27] <gregcnc> ah ok, that makes sense
[16:21:46] <roycroft> i could use some blocks of aluminium
[16:21:51] <roycroft> please to send some my way, thank you very much
[16:21:55] <jymmm> WTH, are we playing metal bingo here or what?
[16:22:12] <roycroft> i won't even charge you storage fees
[16:22:25] <XXCoder> roy lol
[16:22:34] <roycroft> and i won't complain that they're past their expiry date
[16:22:51] <jymmm> roycroft: yes you will, dont lie
[16:22:57] <roycroft> no, i won't
[16:23:04] <roycroft> i'm even willing to put that in writing
[16:23:19] <jymmm> roycroft: :But but but , this hunk isn't purpole enough, blah blah blah
[16:23:22] <gregcnc> i should have a motor showing up today NIB, ABB 3kW for $182.
[16:23:25] <jymmm> purple*
[16:23:41] <gloops> theres no time involved in collecting scrap here, people put it outside to be collected
[16:24:13] <gloops> unfortunately i havent found any pewter or tin yet outside someones gate
[16:24:32] <roycroft> after your economy crashes at the end of the month people will be grinding up their cans and making aluminium soup to fill their bellies
[16:24:45] <methods_> https://en.wikipedia.org
[16:24:55] <gloops> lol! thanks for the words of encouragement roycroft
[16:25:14] <roycroft> i'm sorry
[16:25:16] <methods_> the metals in that list would probably have time restrictions on their certs
[16:25:21] <roycroft> this is what i've been saying for two years
[16:25:33] <roycroft> and even your prime minister admits this is one of the biggest clusterfucks in british history
[16:25:45] <gloops> roycroft everyone seems determined our economy is going to crash - its the fastest growing europe
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[16:26:08] <gloops> new employment figures today, best since 1975, we're doing better than fine
[16:26:39] <methods_> isn't everyone doing fine, until they are not
[16:26:43] <gloops> us brits will always be ok, its in our genes ;)
[16:27:29] <gloops> https://www.bbc.co.uk
[16:27:40] <SpeedEvil> https://www.theguardian.com
[16:27:46] <SpeedEvil> Doing great.
[16:27:59] <XXCoder> yeah stiff upper lip helps
[16:28:24] <gloops> fake news Speedevil
[16:28:32] <jymmm> SpeedEvil: ""This article is over 1 year old""
[16:29:00] <XXCoder> 2017 june
[16:29:26] <XXCoder> gloops: outdated is not fake news.
[16:29:59] <gloops> its the Guardian though, EU rag
[16:30:21] <gloops> anyway, im not going to be drawn into a bexit debate lol
[16:31:25] <XXCoder> ah ok
[16:32:07] <syyl> i never realised that the house of commons is like a monty python sketch :D
[16:32:19] <jymmm> lmao
[16:32:46] <jymmm> syyl: Where do you think the idea of monty python came from?
[16:32:52] <syyl> well ;)
[16:32:55] <syyl> now its obvious
[16:33:13] <SpeedEvil> syyl: problem is this year it's evolved into the 'not dead yet' knight, rather than the ministry of silly walks.
[16:33:34] <syyl> but i adore john bercow for his english
[16:33:39] <rmu> *lol
[16:33:43] <rmu> *
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[16:35:48] <gloops> dont be deceived by that performance syyl, underneath this is a highly organised country, our govmt works like a finely tuned piano
[16:35:59] <syyl> sure
[16:36:03] <syyl> like a british car?
[16:36:19] <gloops> theres nothing wrong with british cars
[16:36:41] <syyl> i didnt want to imply that
[16:36:42] <syyl> :)
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[16:39:21] <gloops> funny how it works, now its the german car industry that looks pretty old and outmoded and yesteryear
[16:40:46] <syyl> it needs to die.
[16:40:54] <syyl> die to be reborn
[16:42:06] <gloops> lol
[16:42:25] <syyl> i have no love for german cars anyway
[16:42:27] <syyl> none.
[16:42:40] <gloops> you are german though?
[16:42:43] <syyl> yes
[16:42:55] <gloops> surely there must be some lingering patriotic spirit
[16:42:58] <syyl> but i smell bullshit 100m against the wind.
[16:43:08] <syyl> and all the premium blabla is exactly that.
[16:43:09] <syyl> bullshit
[16:43:33] <gloops> you must look at an old VW and fell some affinity for that authentic beetle steel
[16:43:53] <syyl> yes
[16:44:00] <syyl> that was proper purposedriven engineering
[16:44:07] <gloops> built by your forefathers
[16:44:19] <gloops> in your country, with your materials
[16:44:23] <syyl> just like a french 2cv
[16:44:32] <syyl> purposedriven, simplistic design
[16:45:12] <gloops> well yeah, id take the beetle any day though lol
[16:47:36] <XXCoder> man
[16:47:57] <XXCoder> just read about some lady who almost died by injecting fruit juice in body
[16:48:11] <XXCoder> natural food nutters.
[16:48:26] <gregcnc> people inject heroin, why not?
[16:48:34] <SpeedEvil> Many people do it with coca extract
[16:48:49] <XXCoder> heroin is made to be injected
[16:49:19] <SpeedEvil> With a rigorous quality control procedure.
[16:49:35] <XXCoder> even shitty qa its still safer lol
[16:49:58] <gregcnc> I do wonder how humanity survived before ~1900.
[16:50:18] <XXCoder> easy enough they died. but had enough kids to keep going.
[16:50:47] <XXCoder> wonder why baby boomer era happened? its because death rate dropped but kid production stayed up but finally dropped. that gap is baby boomer era.
[16:52:14] <gloops> there were plenty of psychadelic substances thousands of years ago
[16:52:51] <gloops> or substances used to cause 'highs' or hallucinations etc
[16:53:07] <XXCoder> always.
[16:53:44] <gloops> fly agaric mushrooms here
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[17:54:19] <roycroft> xxcoder: part of the baby boomer phenomenon is that people weren't making many babies during the war, and they made up for lost time right after the war
[17:55:58] <roycroft> i agree that the decrease of the infant mortality rate was a signficant contributor
[17:57:01] <Deejay> gn8
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[18:38:01] <Tom_L> gregcnc, not sure where you are but you might try these guys for aluminum: http://www.aluminumyard.com
[18:38:16] <Tom_L> i get my scrap there all the time
[18:38:47] <Tom_L> http://tom-itx.no-ip.biz:81
[18:44:02] <Tom_L> some of their 'smaller' round http://tom-itx.no-ip.biz:81
[18:44:05] <Tom_L> :)
[18:51:50] <skunkworks> Hmm - A 4k 17" display on a laptop may be the limit of my eyesight...
[18:58:42] <skunkworks> http://electronicsam.com
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[19:02:34] <skunkworks> andypugh: !
[19:02:39] <andypugh> Hai
[19:02:55] <Tom_L> evening
[19:03:28] <skunkworks> The vm on the screen is 1080...
[19:03:31] <andypugh> I made a sort of table for my hand-held bandsaw. It’s great!
[19:03:38] <andypugh> https://photos.app.goo.gl
[19:04:20] <Tom_L> bolt on table
[19:05:01] <andypugh> Mounts to the same screw as the stop-plate thing that is used in the hand-held mode
[19:05:01] <Tom_L> should be ok until you try to run a bar thru the spindle
[19:05:27] <andypugh> I have since moved it to the fly-press base
[19:06:00] <Tom_L> i'm gonna try to run that 2.8 ssd this evening and will report the results
[19:06:02] <Tom_L> just got in
[19:06:03] <andypugh> I have another mount for the lathe (for cuting off bar-stock in the chuck that is too big to part)
[19:07:12] <andypugh> I am really impressed with the tool, it wasn’t expensive: https://www.aldi.co.uk
[19:08:45] <Tom_L> heh not used to seeing Aldi sell tools here
[19:08:52] <Tom_L> just groceries
[19:09:30] <Tom_L> what's the blade diameter?
[19:09:41] <Tom_L> i might have to try and find a place for one here
[19:12:08] <_unreal_> few new photos https://photos.google.com
[19:12:32] <_unreal_> kills me but I'm currently putting together my motor controller for a difference cnc machine
[19:12:55] <_unreal_> I just got 2 nice enclosure boxes that are to perfect for the project
[19:13:10] <_unreal_> so I'm finally throwing all of the parts intro the box.....
[19:13:29] <_unreal_> only have a few more parts to solve and connect and I " could " test a motor
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[19:27:08] <skunkworks> OMG finally - my perfect laptop... (other than heavy...)
[19:27:53] <skunkworks> http://electronicsam.com
[19:28:33] <andypugh> Tom_L: Blade diameter? Do you mean width?
[19:28:46] <Tom_L> no, overall circumference
[19:29:00] <Tom_L> or cutting area
[19:29:06] <Tom_L> just judging what size it is
[19:29:25] <andypugh> It uses this size https://www.ebay.co.uk
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[19:29:55] <andypugh> It’s fairly small, as you would expect from a handheld saw
[19:30:44] <Tom_L> yeah, that's about what i expected
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[19:40:14] <infornography> ello
[19:40:52] <infornography> Anyone willing to help me through sone audio issues?
[19:41:50] <infornography> maybe audio anyway, I'm trying to get the linuxcnc box to play mp3s, but it sounds funky
[19:44:15] <a-u> You've not said if the music was funk, and should sound funky....
[19:44:36] <a-u> or if you happen to have an old PC with slower processor and maybe fewer cores.
[19:45:20] <a-u> I've used old PCs that seem quite busy keeping track of the RT real time tasks used by LinuxCNC that it is very slow to respond to things...
[19:45:44] <a-u> ... that others say you may not want to do on a RT-machine - like web pages and such.
[19:46:42] <infornography> cpu usage "looks" low.
[19:47:20] <skunkworks> 4k linuxcnc? http://electronicsam.com
[19:48:30] <a-u> OK - 4K LCNC is cute.
[19:49:47] <a-u> For the audio issues... did you ever use that platform for a non RTAI kernel? Boot from a live CD (USB) with some other OS and see if it the audio works well?
[19:50:33] <a-u> There could be kernel  / hardware / driver challanges that keep your audio from working well.
[19:52:24] <infornography> oooo thats a good plan
[19:53:05] <infornography> Its been running about a year but I didn't try audio until recently
[19:53:14] <infornography> one of these motherboards
[19:53:16] <infornography> https://www.amazon.com
[19:54:11] <infornography> I'll try a different distro live cd
[20:00:45] <a-u> We've always used leftover PCs, including far older and lower specs than that mini-board and know we had it playing MP3 tunes under Ubuntu.
[20:07:00] <infornography> audio worked fine from a live cd
[20:07:39] <infornography> Does linuxcnc work as a live cd?
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[20:08:53] <a-u> Yep - the distribution image for LCNC boots Debian, I believe.
[20:14:01] <skunkworks> andypugh: fusion running through a vm in debian... http://electronicsam.com
[20:14:28] <andypugh> I had seen that, but not twigged the VM part.
[20:14:42] <andypugh> (I use a Mac and Fusion Native)
[20:20:47] <skunkworks> I don't understand why they don't have a linux port..\
[20:21:18] <skunkworks> the only reason why I keep a windows license...
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[20:23:33] <fdarling> pcw_home: I have some more PID questions for you, I am tuning the velocity mode Yaskawa servos and I ended up needing FF1 values of 30 and 90 and such for the different motors, that seems way off from the theoretical 1.0... I might be scaling things incorrectly
[20:23:37] <Tom_L> andypugh, running 2.8 i get this: http://tom-itx.no-ip.biz:81
[20:23:39] <Tom_L> http://tom-itx.no-ip.biz:81
[20:23:46] <Tom_L> http://tom-itx.no-ip.biz:81
[20:24:10] <Tom_L> just finished running that program on 2.7
[20:24:48] <fdarling> Tom_L: I think it's trying to interpret the () comment as a function call with nothing preceding it maybe?
[20:24:58] <Tom_L> i think it's the line numbers
[20:25:03] <Tom_L> the () are comments
[20:25:18] <fdarling> Tom_L: what happens if you remove line 2 with the () comment? does it move the problem by more than 1 line?
[20:25:21] <Tom_L> or always have been
[20:25:47] <Tom_L> i'll have to go back out and try that
[20:26:37] <andypugh> Is G28 valid with a Z number?
[20:27:46] <andypugh> Hmm, sees to be
[20:30:44] <Tom_L> yes
[20:30:54] <Tom_L> i ran that program on 2.7 a couple days ago
[20:31:02] <Tom_L> removing the comment line made no difference
[20:31:13] <Tom_L> removing some N numbers made no difference
[20:31:38] <Tom_L> i'll go out and grab the configs and post them (the converted ones)
[20:33:04] <fdarling> Tom_L: is it possible renaming the extension from .txt to .ngc will fix it?
[20:33:16] <_unreal_> almost done soldering together my step/dir converter circuit
[20:33:23] <_unreal_> http://moriscanet.blogspot.com
[20:33:25] <fdarling> Tom_L: I doubt that will make a difference, but that was the first thing I noticed
[20:33:52] <_unreal_> 12C508A
[20:34:03] <_unreal_> I have a bunch of those chips
[20:34:10] <_unreal_> so finally making the adapter
[20:34:30] <_unreal_> god I started this project THIS project 15 years ago... and my parts have been sitting idle
[20:34:36] <_unreal_> NO MORE gall damnnn it
[20:37:26] <fdarling> Tom_L: here is the line of code responsible for the popup you're seeing: https://github.com
[20:37:31] <Tom_L> fdarling i have that defined in the config
[20:37:35] <Tom_L> .txt extensions
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[20:37:56] <fdarling> Tom_L: you could get Python to cough up a backtrace and maybe get a clue as to what's going on
[20:38:51] <andypugh> Something wrong with the graphical preview
[20:38:56] <fdarling> Tom_L: you might want to do the "massive printf" method of debugging that, simply edit axis.py and put a bunch of print statements showing what it's processing, and what gets spit out last before it gives up
[20:39:37] <andypugh> It’s something in “load_preview”
[20:39:39] <Tom_L> this is on wheezy
[20:39:42] <andypugh> result, seq = o.load_preview(f, canon, initcodes, interpname)
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[20:40:18] <andypugh> But, sadly, I can’t help as I need to sleep.
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[20:46:43] <Tom_L> http://tom-itx.no-ip.biz:81
[20:46:45] <Tom_L> http://tom-itx.no-ip.biz:81
[20:46:53] <Tom_L> there's the 2 sets of configs
[20:47:02] <Tom_L> i'm running 2.7 on a separate ssd
[20:47:24] <Tom_L> did the upgrade and ran the config tool
[20:48:08] <Tom_L> installed 2.7 on another ssd and tested it then did the upgrade to 2.9
[20:48:14] <Tom_L> 8*
[20:50:58] <Tom_L> i'll look into it further later on
[20:51:30] <Tom_L> at least now i've got backups on the server :)
[20:51:52] <fdarling> Tom_L: the file that is giving you trouble, does it work on other machines?
[20:52:03] <Tom_L> the file works on 2.7
[20:52:11] <Tom_L> same pc
[20:52:43] <Tom_L> i just wanted to test 2.8 out a bit. wasn't really planning to commit to it yet
[21:02:40] <infornography> linuxcnc live cd doesnt playback audio correctly either
[21:12:03] <pink_vampire> skunkworks: I like the 4K LCNC
[21:12:30] <pink_vampire> we need to render the chips that fly from the cut
[21:17:29] <skunkworks> heh
[21:17:46] <skunkworks> with ray-tracing
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[21:40:14] * jymmm sends chips flying at pink_vampire, but no dip for you!!!
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[21:49:28] <pink_vampire> jymmm: what do you mean?
[21:49:52] <jymmm> pink_vampire: (potato chips)
[21:50:01] <pink_vampire> loolllllllllllll
[21:50:51] <roycroft> so does anyone do any threading with a form tool?
[21:51:08] <roycroft> i suppose that's what cutting an acme thread is
[21:52:12] <roycroft> but i'm thinking of a round thread
[21:52:35] <fdarling> roycroft: on a lathe or on a mill?
[21:52:40] <roycroft> on a lathe
[21:52:48] <roycroft> i'm wondering how likely i am to fail :)
[21:53:32] <fdarling> fdarling: I think the hart part is learning how to operate thread cutting mode on the lathe, not so much the shape of the tool. The shape of the tool of course definitely matters for producing usable threads
[21:53:45] <fdarling> roycroft: I don't know why I addressed that to myself :-P
[21:54:02] <roycroft> i am reasonably adept at cutting threads with a single point tool
[21:54:06] <fdarling> roycroft: I've used round form tools to create ball detent rings on cylinders
[21:54:20] <roycroft> here's the thing
[21:54:28] <roycroft> i need to make some torsion springs
[21:54:38] <roycroft> i've tried winding the music wire around a cylinder
[21:54:43] <fdarling> roycroft: this is already sounding dangerous
[21:54:46] <roycroft> i have a really hard time keeping the windings even
[21:55:17] <roycroft> i thought that if i made a round form tool that is the diameter of the music wire i could make a mandrel to wrap the music wire around
[21:55:37] <roycroft> and i'd get a more even wind
[21:55:46] <roycroft> it's potentially dangerous
[21:55:48] <fdarling> roycroft: maybe a 3D printed one would hold up to the compressive forces?
[21:56:06] <roycroft> i don't think a 3d printed one would work
[21:56:10] <fdarling> roycroft: why not?
[21:56:13] <roycroft> but i don't have a 3d printer, so that's irrelevant
[21:56:38] <roycroft> i think i would crush the 3d mandrel
[21:56:52] <fdarling> roycroft: it would be a sleeve to go over a metal cylinder
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[21:57:13] <roycroft> this wire is about 0.210"/5.4mm in diameter
[21:57:14] <fdarling> roycroft: print it out of PETG with 100% infill and I'll bet it would hold up
[21:57:19] <roycroft> but again
[21:57:21] <roycroft> i have no 3d printer
[21:57:25] <roycroft> but i do have a lathe
[21:57:51] <fdarling> roycroft: all right, well I think the lathe would do fine, just take light cuts and make the mandrel out of aluminum or something if you're worried about the forming tool
[21:58:00] <fdarling> roycroft: you don't even have a friend with a 3D printer?
[21:58:14] <roycroft> i've made rounded form tools in the past
[21:58:20] <roycroft> and i've used them with reasonable success
[21:58:28] <roycroft> but i always plunge them straight into the work
[21:58:41] <roycroft> i've never attempted a thread pattern with one
[21:58:52] <roycroft> but yes, really light cuts would be in order
[21:59:08] <roycroft> unfortunately, my lathe only goes down to 80rpm
[21:59:32] <roycroft> and it would be a fairly rough thread pitch, since the thread would be 0.210" wide and cannot overlap
[21:59:47] <roycroft> so approximately 5 tpi
[21:59:53] <roycroft> probably 4tpi to be safe
[22:00:16] <roycroft> i don't have the gearing to do 4.75tpi on my lathe
[22:00:42] <roycroft> but don't worry - i have a jig to make the springs safely
[22:00:56] <roycroft> i just need something better than a cylinder to wrap the wire around
[22:19:38] <roycroft> my main concern about this project is the geometry of the tooling - i need to be sure to have enough relief
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[22:51:00] <skunkworks> Fixed a ribbon cable (one of the plastic strips with copper applied to it)
[22:51:38] <skunkworks> Whoever worked on it ripped the copper off the end. Cut it short and gently scraped the insulation off to expose the copper..
[22:51:55] <skunkworks> worked sprisingly..
[22:52:25] <skunkworks> this was about 1/8 inch wide cable with about 6 conductors..
[22:52:51] <skunkworks> (ran power, hd and battery led's on a laptop)
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[23:04:21] <a-u> I've wound a variety of coils on a round mandrel powered by good cordless drivers, often with a crude jig to space one turn to the next - but you may be working with a lower gauge wire....
[23:10:10] <skunkworks> like https://www.youtube.com
[23:10:13] <skunkworks> ?
[23:10:30] <skunkworks> ;) That goes in a wrist watch....
[23:10:53] <roycroft> were you talking to me, a-u?
[23:14:01] <a-u> roycroft: yes
[23:14:10] <roycroft> this wire is pretty stiff
[23:14:20] <roycroft> as in i have to huff and puff to bend it manually
[23:14:27] <roycroft> it's 0.210"/5.33mm in diameter
[23:14:57] <roycroft> but the issue is not bending it
[23:15:04] <roycroft> it's making the coil neat and tidy
[23:15:06] <a-u> oops - no, I was working 16 - 14 gauge. You would need an industrial jig
[23:15:17] <roycroft> i made a jig
[23:15:35] <roycroft> but when i bend it around a cylinder the coil doesn't "nest" very well
[23:15:46] <roycroft> that's why i thought that turning a round thread on the cylinder might help
[23:16:10] <roycroft> and you know, a v-groove thread would probably work fine
[23:16:28] <roycroft> i may be making this more difficult than it needs to be
[23:17:25] <roycroft> i've made a couple that are functional ,but they are ugly
[23:17:32] <roycroft> and i don't like making ugly stuff
[23:18:15] <a-u> I suspect the issue is precision force and track - that the modulus you are trying to change is so high that small variations cause visible changes
[23:19:05] <a-u> I suspect an old school machinist would say bend first, then harden / temper.
[23:19:28] <roycroft> i'm kind of intrigued by the idea of making a form tool to cut a rounded thread
[23:19:41] <roycroft> i might give it a go just to see if i can make it work decently
[23:20:45] <roycroft> it might be best to form most of the thread with a v-groove tool, then finish it with the round tool
[23:21:01] <a-u> So grind carbide to a rounded shape to thread with?
[23:21:08] <roycroft> i'll use hss
[23:21:23] <roycroft> but yes, i'll make the tool
[23:22:00] <roycroft> i'm concerned primarily with making sure i have sufficient clearance
[23:22:05] <roycroft> and somewhat concerned about chatter
[23:22:44] <roycroft> and slightly concerned with cutting a very coarse pitch thread with a lathe that i can't run as slowly as i'd like
[23:22:48] <a-u> Seems possible. I remember someone selling jig and dies for cutting Acme thread.
[23:23:11] <roycroft> i've cut acme threads on the lathe
[23:23:27] <roycroft> it's been a long time though
[23:23:31] <a-u> I cheated and bought ballscrew and nuts direct from China.
[23:24:11] <a-u> And rails and linear bearings.
[23:25:20] <Tom_L> roycroft, i had my friend cut a 3 tpi thread for me on his lathe once
[23:25:26] <Tom_L> that was rather interesting
[23:26:12] <Tom_L> http://tom-itx.no-ip.biz:81
[23:26:46] <Tom_L> you just can't go as slow as you'd like
[23:28:43] <a-u> I've never tried anything in that range other than via cnc A axis
[23:29:03] <Tom_L> he'd never used that gear on his lathe
[23:29:11] <Tom_L> but he had it :)
[23:29:17] <a-u> Nice
[23:29:22] <Tom_L> most lathes won't go that coarse
[23:29:31] <Tom_L> most stop around 8
[23:30:27] <roycroft> i just checked
[23:30:35] <roycroft> i can cut 4.5tpi, which is really close to what i need
[23:30:43] <roycroft> and my low speed is 60rpm, not 80rpm
[23:30:44] <_unreal_> There finished building the stupid step/dir to phase adapter board
[23:30:57] <roycroft> i'd prefer more like 40rpm or even 25rpm for this
[23:31:05] <Tom_L> still seems fast when you're feeding that quick
[23:31:22] <roycroft> it does
[23:31:30] <roycroft> and i'm an old fart
[23:31:31] <Tom_L> and you gotta hit your mark to engage the drive just right..
[23:31:36] <roycroft> my reaction time is not what it used to be
[23:31:42] <Tom_L> :)
[23:31:56] <roycroft> i might not disengate
[23:32:00] <roycroft> disengage
[23:32:14] <Tom_L> he did and made i think either 3 or 4 passes
[23:32:19] <roycroft> just leave the half nut engaged, back the tool off, and back up
[23:32:20] <roycroft> then repeate
[23:32:45] <roycroft> since i'll be using a round tool i'll need to make very very light cuts
[23:32:53] <roycroft> i can see a dozen or more passes easily
[23:32:53] <Tom_L> yeah
[23:33:58] <roycroft> 4.76tpi is what i need to lay the coils right next to each other
[23:34:07] <roycroft> 4.5tpi is close enough to that i think
[23:34:23] <roycroft> 5tpi would be crowding it
[23:34:25] <_unreal_> roycroft, Thats a quarter of a turn difference
[23:34:26] <Tom_L> depends how many rows of coil
[23:34:38] <_unreal_> doesnt take many rotations to add up
[23:34:43] <roycroft> i only need a bit over an inch
[23:34:48] <roycroft> so 5 coils or so
[23:34:49] <Tom_L> if that's true every 5th one would skip over the cut
[23:35:06] <roycroft> yes, that's why making it a bit coarser is better than a bit finer
[23:37:45] * Tom_L blows out the candle and goes to sleep
[23:37:55] <roycroft> this would be a good time to swap my lathe motor for a 3 phase one with a vfd
[23:38:00] <roycroft> no more belt changing
[23:38:04] <roycroft> and a wider speed range
[23:40:12] <a-u> How much power do you need on your lathe
[23:40:24] <roycroft> it has a 2hp motor
[23:40:31] <roycroft> and i would replace it with another 2hp motor
[23:40:36] <roycroft> it's a 12x36
[23:40:48] <roycroft> that's a nice size, and the motor power is well matched to it
[23:42:56] <a-u> Yes - VFD are not that expensive and the control is nice.
[23:43:11] <roycroft> the lathe is belt drive
[23:43:23] <roycroft> i like how quiet it is and how smoothly it runs
[23:43:33] <roycroft> but i do not like moving the belt around to change speeds
[23:44:42] <a-u> Yes, the VFD motors won't make the same noise as a 3600 RPM or similar synchronous AC motor.
[23:45:06] <roycroft> i'm building a belt grinder, and i originally bought a 2hp motor for it
[23:45:33] <roycroft> i got a 2.2kw vfd for that, because i'm feeding it single phase, and like to oversize the vfd a bit when doing that
[23:45:42] <roycroft> especially an asian import vfd
[23:45:56] <roycroft> i just decided to use a 3hp motor for the belt grinder
[23:46:15] <roycroft> i was going to start out with the 2.2kw vfd, but i might get the next size up instead
[23:46:21] <roycroft> and repurpose the 2.2kw for my lathe
[23:47:39] <roycroft> if i want to run the lathe at 25rpm, though, i'll definitely need an inverter rated motor
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[23:50:24] <a-u> We're only using VFD on spindle. Guessing you may still have some belt reduction, but not much spindle power below about 300 RPM
[23:50:38] <roycroft> yeah, i have belt reduction
[23:50:50] <roycroft> and i have a low and a high speed range
[23:51:02] <roycroft> i'll probably continue to swap that belt around
[23:51:18] <roycroft> right now my speed range is 60-1600rpm, iirc
[23:51:21] <roycroft> i know 60 is the low end
[23:51:37] <roycroft> and i'm pretty sure that 1600 is the high speed
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