#linuxcnc Logs
Jun 19 2020
#linuxcnc Calendar
01:51 AM Deejay: moin
06:29 AM Centurion-Dan2 is now known as Centurion_Dan
06:49 AM Tom_itx: morning
06:49 AM Tom_itx is now known as Tom_L
07:01 AM Tom_L: looks like a soaker today
07:06 AM Tom_L: thunder & lightening all night
07:07 AM XXCoder: fun
07:30 AM JT-Cave: looks like we get it tomorrow
07:31 AM * JT-Cave needs to remind jymmmm that he never "signs up" for anything lol
08:27 AM Tom_L: been kinda dry here so i guess we need the rain
08:56 AM rmu|w: CaptHindsight: interesting story (solar panels)
09:41 AM jymmmm: JT-Cave: I don't either, but I signed up for that. Got an acknowledgment email that even had an unsubscribe link in it.
09:49 AM jymmmm: Loetmichel: I was thinking... This PS is 150W, the resistor is going to dump 50W alone, something don't seem right there, lol.
10:02 AM skunkworks: Just mowed - it looks like the sky could let lose any second
10:07 AM jymmmm: I had to wait to bug spray because of that last week. 4 gallons down, 2 more to go
10:08 AM jymmmm: the spiders have be crazy this year
10:08 AM jymmmm: excessivelt so
10:08 AM jymmmm: excessively so*
10:24 AM CaptHindsight: rmu|w: same story near me, anti-solar for the same reasons
10:27 AM jymmmm: anti solar???
10:28 AM CaptHindsight: "town rejects solar panels amid fears they 'suck energy from the sun', cause cancer - and will harm house prices"
10:28 AM CaptHindsight: "A retired science teacher said she was concerned the panels would prevent plants in the area from growing"
10:29 AM jymmmm: hangs head in the shame of it all
10:29 AM jymmmm: where was this?
10:31 AM CaptHindsight: it's everywhere around here
10:32 AM jymmmm: Circa 2015 https://www.independent.co.uk/news/world/americas/us-town-rejects-solar-panels-amid-fears-they-suck-up-all-the-energy-from-the-sun-a6771526.html
10:33 AM methods_: definitely a more 2020 headline
10:34 AM methods_: 2015 was ahead of it's time
10:35 AM * jymmmm puts methods_ inside a parabolic mirror
10:36 AM jymmmm: CaptHindsight: Are you back in UK ?
10:37 AM jymmmm: CaptHindsight: If so, do they even have enough dry days for solar to be practical?
10:38 AM CaptHindsight: outside Chicago
10:39 AM CaptHindsight: the city near me developed an old quarry into a rec area, built some structures that are now 1 ft under water after being open for only 3 years
10:40 AM jymmmm: If it's a rec area, didn't they consider a pond instead?
10:40 AM CaptHindsight: that is how sharp the city engineers are around here
10:40 AM jymmmm: not instead, but included
10:42 AM jymmmm: CaptHindsight: WHAT DID YOU DO?!
10:43 AM -!- #linuxcnc mode set to +v by card.freenode.net
10:43 AM -!- #linuxcnc mode set to +v by card.freenode.net
10:43 AM jymmmm: welcome back everyone!!!
10:44 AM CaptHindsight: another built a road across a stream bed so the neighborhood flooded
10:49 AM jymmmm: CaptHindsight: There's a water channel near here, used to water crops. It gets clogged with overgrowth, floods during heavy rain. But due to an endangered frog, NOBODY is allowed to clear the clog with tractor per Fish and game or get fined like $10K
10:50 AM jymmmm: so homes are literally flooded 18" underwater every couple of years
11:13 AM jymmmm: I always thought ballasts were in the KV https://www.electriciantalk.com/attachments/f2/113793d1506503509-ballast-output-voltage-advance-fluorescent-ballast-troubleshooting-guide1.pdf
11:15 AM * JT-Cave found out this morning that ALL USPS international packages are going via boat now
11:17 AM jymmmm: JT-Cave: priority and express too?
11:17 AM JT-Cave: global as well
11:18 AM JT-Cave: EVERYTHING is going by boat
11:19 AM jymmmm: Covid limitations... https://about.usps.com/newsroom/service-alerts/international/welcome.htm
11:20 AM CaptHindsight: jymmmm: http://donklipstein.com/hidexp.html
11:20 AM CaptHindsight: PEAK VOLTAGE NECESSARY FOR STARTING:
11:22 AM jymmmm: CaptHindsight: I was trying to find some (toy?) use for the ballast out of an old fixture.
11:25 AM jymmmm: CaptHindsight: Electric fence for Barbi Dream house?
11:25 AM jymmmm: CaptHindsight: Batteries not included ;)
11:26 AM roycroft: why do people do this?
11:26 AM roycroft: i found a supplier for some hardware i need, and was delighted to find they're local - in portland
11:27 AM roycroft: so i went to their website, only to be accosted with this:
11:27 AM roycroft: "
11:27 AM roycroft: Yes, we are OPEN during the COVID-19 pseudo-crisis. The government is unable to make us close down the storefront we don't have."
11:27 AM roycroft: i left immedately, and now i get to order from north carolina, not locally
11:27 AM roycroft: what is the point of someone trying to make money in posting something like that on their e-commerce website?
11:28 AM roycroft: do it in craigslist or on reddit or on a facebook page
11:28 AM roycroft: and they don't even have a brick and mortar store, so they're not telling their customers to not stop by
11:28 AM roycroft: they're just being in-your-face political on a website where people go to buy stuff, not argue politics
11:29 AM roycroft: that was in big, bright red lettering at the top of the landing page
11:30 AM CaptHindsight: some people are less rational than others
11:30 AM roycroft: i suppose
11:31 AM roycroft: 85% of americans support social distancing measure
11:31 AM roycroft: s
11:31 AM roycroft: that person just excluded 85% of the customer base
11:31 AM roycroft: for no reason
11:31 AM roycroft: i get that portland is a really stressful place to be right now
11:32 AM roycroft: but intentionally tanking one's business only makes the stress worse
11:35 AM CaptHindsight: if it wasn't for the GPS in their cars I don't know how most people around here find their way to work and back home
11:35 AM CaptHindsight: i don't know who pays them for any work that they do and how they get it done
11:36 AM jymmmm: CaptHindsight: I use a gps to got lost intentionally
11:36 AM roycroft: the tribal society we've been devolving into probably accounts for a lot of that
11:37 AM jymmmm: CaptHindsight: I've found some of the most amazing things doing that
11:37 AM roycroft: and social media play a bit role in the tribalism
11:37 AM roycroft: people no longer interact with their neighbors and exposed to other points of view
11:38 AM roycroft: instead, they stay home, go online, and seek others who think exactly like them, and create a bubble in which there is no other thought, no other ideas
11:38 AM roycroft: that vendor may think that making a stupid political statement like that on the website might actually increase business
11:44 AM * roycroft decides not to bother contacting them, knowing it would likely just make matters worse
12:02 PM CaptHindsight: rational mature adults are more difficult to manipulate than those who act on impulse and emotions
12:03 PM CaptHindsight: why the focus was placed on emotions
12:04 PM JT-Shop: momma taught me to never argue with an idiot, they drag you down to their level and win with experience
12:06 PM jymmmm: JT-Shop: Do you have a link to international boat shipments?
12:08 PM CaptHindsight: https://esellercafe.com/us-postal-service-shifting-international-air-mail-sea-transport-during-covid-19-update-6-5-2020/ I'll look for their source
12:10 PM CaptHindsight: https://about.usps.com/newsroom/service-alerts/pdf/alternate-transport-air-to-sea.pdf
12:10 PM CaptHindsight: https://about.usps.com/newsroom/service-alerts/
12:35 PM tiwake: I should get some anodizing supplies soonish
12:37 PM CaptHindsight: 102F on the outdoor thermometer in the shade, have to find a better spot
12:38 PM CaptHindsight: official temp is 85F
12:41 PM tiwake: CaptHindsight: is it bad to store sulfuric acid in a hot garage?
12:42 PM CaptHindsight: tiwake: what is it stored in?
12:43 PM tiwake: a plastic container with a not-sealed lid?
12:45 PM CaptHindsight: should be fine with the cap on
12:46 PM justanotheruser is now known as Guest88307
12:54 PM CaptHindsight: tiwake: https://www.msdsonline.com/2014/07/22/sulfuric-acid-safety-tips-sulfuric-acid-msds-information/
01:26 PM jymmmm: tiwake: You could always place the container in a plastic tub on the floor if it ever leaks/drips/etc
01:27 PM jymmmm: Tahat's what I do with all my *cides
01:28 PM CaptHindsight: do you put the leaks into the same bottle and mark it Killsall?
01:29 PM miss0r: Work is going slowly forward for the 101: https://imgur.com/a/oS8Ir1Z
01:29 PM miss0r: goodevening, by the way :)
01:29 PM jymmmm: Actually no. I have two different sprayers, one for weeds, one for bugs. I spray under the eves and there are plants at the base.
01:31 PM jymmmm: miss0r: How do you like that 70A circuit breaker?
01:31 PM miss0r: Jymmm: Other than it was not ment to be panel mounted, it is alright.
01:32 PM jymmmm: miss0r: It has 4 mounting holes
01:32 PM miss0r: I've tested it out, and it breaks at 70 amps +2/-1 amp
01:32 PM miss0r: only two this one
01:32 PM jymmmm: Ah ok
01:32 PM jymmmm: miss0r: Do the terminals look "cheap"? Like might rust
01:33 PM miss0r: the only thing that I 'dislike' if that is not a too harsh of a word is the switching action when connecting it
01:33 PM CaptHindsight: miss0r: all aluminum except for some interior steel angle that rusted?
01:33 PM miss0r: the disconnect is as fast as it should. but closing the contact is a bit slobby in my opinion
01:33 PM jymmmm: miss0r: how so?
01:33 PM miss0r: CaptHindsight: Indeed
01:34 PM CaptHindsight: miss0r: just from humidity or did the roof leak?
01:34 PM miss0r: Jymmm: Its hard to explain.. I just like to get a nice *click* action on BOTH connect and disconnect - which indicated a nice fast switching action. But this is only the case on disconnect.
01:34 PM jymmmm: aluminum plated steel???
01:35 PM jymmmm: miss0r: so internally the contacts are a bit sloppy, no solid "click" sound/feel?
01:35 PM miss0r: one could argue that the connect does not matter at all, as this is not a switch designed to do on/off function under load, only off, so it is fine
01:35 PM miss0r: Jymmm: It is perfect on the disconnect, but the connect action is slobby, yeah
01:35 PM jymmmm: miss0r: Sure, but that's EXACTLY what I'm going to use it for =)
01:35 PM jymmmm: disconnect and overload protection
01:35 PM miss0r: CaptHindsight: Based on the former owners rampage with this car I would assume the water came from the bottom up :)
01:36 PM miss0r: Jymmm: In which case I can recommend it
01:36 PM jymmmm: miss0r: Cool, I think I want to use the inline version instead though
01:36 PM miss0r: and yes. The land rovers are notorious/infamous for bolting alu to steel at hard to reach areas :)
01:36 PM miss0r: in line version?
01:37 PM CaptHindsight: miss0r: how are the diffs doing with all that water crossing/standing/sinking?
01:37 PM jymmmm: miss0r: No no, I meant in general... aluminum plated steel - no corrsion and no need to paint
01:37 PM miss0r: CaptHindsight: They are doing excellent. They have breathers mounted at roof level
01:38 PM jymmmm: miss0r: https://www.amazon.com/dp/B077CZ1JYM/
01:38 PM miss0r: Jymmm: Indeed. That idea is nice *IF* you can manage to keep oxygene to work its way inbetween the layers.
01:38 PM CaptHindsight: anodized cold roll is expensive https://imgur.com/a/N0l5O96
01:39 PM jymmmm: miss0r: aluminized exhaust pipe?
01:39 PM miss0r: Jymmm: hehe. I know those. DO keep it away from any heatsource. The transparrent plastic used on those things get bad right fast in a hurry. I used to use simular ones back when I was building alot of car steroes.. I found other solutions, I couldn't trust them
01:40 PM miss0r: Jymmm: This composite material is unknown to me. I do believe this is the first I hear of it
01:40 PM jymmmm: miss0r: what OTHER soltions?
01:40 PM miss0r: The type of fuse I've bought. The plastic is ALOT nicer
01:41 PM jymmmm: miss0r: https://www.amazon.com/ALUMINIZED-STEEL-STRAIGHT-EXHAUST-PIPE/dp/B07CP9B5N3
01:42 PM miss0r: you *could* alse get a din-rail mountable one. con: alot more expensive(especially if you want a contact set rated for DC) pro: you can get'em as nice as you want to pay for
01:42 PM jymmmm: Nah, din rail is too much for this project
01:43 PM jymmmm: miss0r: I was just combining cutoff switch and fuse in one
01:44 PM miss0r: that is what I have installed (the 70amp one)
01:44 PM jymmmm: miss0r: MArine grade https://www.westmarine.com/buy/blue-sea-systems--285-series-thermal-circuit-breakers-surface-mount--P011975596?recordNum=3
01:45 PM miss0r: ... "We have detected that you are visiting us from a country with Global Data Protection restrictions (GDPR). Due to requirements placed upon West Marine as a result of Global Data Protection Regulation, we are not permitting internet traffic to our website from certain countries in order to avoid any violations. No tracking or performance measurement cookies were served with this page."
01:45 PM miss0r: grapping a proxy, hang on :D
01:46 PM jymmmm: Eeeeesh, what a PITA... GDPR that is
01:47 PM miss0r: hehe.
01:47 PM jymmmm: I'm so fucking tired of seeing "we use cookies, ok?"
01:47 PM miss0r: That thing looks exactly like mine, except for some colours and text
01:47 PM miss0r: Mine is also marine grade(water proff)
01:47 PM jymmmm: but I think much better quality materials
01:48 PM miss0r: compared to the other link, yeah. I can't speak for how that marine one fares compared to the one I have installed though
01:48 PM miss0r: I just know the in-line one will cause heartache
01:48 PM jymmmm: even in a dry area?
01:49 PM miss0r: Its not so much the prospect wateringress that worries me, its the poor quality of materials
01:49 PM miss0r: i.e. those two "cable glands" at either end, those WILL break if you overtighten them with your fingers alone
01:50 PM jymmmm: miss0r: Ok Fiiiiine, damn you I'll get the panel mount instead
01:50 PM miss0r: Good lad :)
01:51 PM miss0r: also, when you are switching that amount of DC, you want to trust your materials. DC can generate and sustain some NASTY archs, even at low voltages
01:52 PM miss0r: which reminds me of a rather funny story
01:52 PM jymmmm: Yeah, I was just being lazy and didn't want to get 8ga crimp rings
01:52 PM CaptHindsight: Accept Cookies = continue to browse site
01:53 PM CaptHindsight: how often are you redirected to some other site if you don't accept?
01:53 PM jymmmm: never
01:53 PM miss0r: I helped build a rather sizeable control cabinet/breakerbox for a sewage pump plant. The thing was (from memory) 12meters wide, 2.5 meters tall and 0.5meters deep.
01:53 PM miss0r: It was supplied with three phase 400volts at 2500amps
01:53 PM jymmmm: miss0r: IT's a shitty job, but someobody gotta do it
01:54 PM jymmmm: WTH 2500A?!
01:54 PM miss0r: The cabinet was, due to the high powered DC pump drives in there, supplied with a bunch of arch detection units
01:54 PM miss0r: yeah
01:54 PM jymmmm: Sounds liek they could have just used a locomotive engine
01:55 PM miss0r: One the first official day of running unattended all the higherups and a local newspaper did a tour of the place
01:55 PM miss0r: They found the inside of the cabinet particular interresting and pretty, so they started taking pictures (WITH FLASH)
01:55 PM miss0r: they shut down the place right fast in a hurry :D
01:56 PM jymmmm: optical arch detectors.... LMAO
01:56 PM miss0r: I think I have a video of the breaker that disconnects the transformer from the cabinet. that thing is A BEAST !
01:56 PM miss0r: yeah.. once the dust had settled, we had a good laugh :)
01:56 PM CaptHindsight: miss0r: what gauge wire was the power cord? :)
01:57 PM jymmmm: CaptHindsight: 4" ga
01:57 PM miss0r: it was massive cobber bars
01:57 PM miss0r: air insulated
01:57 PM miss0r: IIRC each phase had 6 parallel 60x25mm cobber
01:57 PM jymmmm: miss0r: You should have scarapped all the copper =)
01:57 PM miss0r: RAILS is the term
01:58 PM jymmmm: bus bars
01:58 PM miss0r: indeed
01:58 PM miss0r: There were *some* left that magically disapeared when we were done routing it :D
01:58 PM jymmmm: lol, of course
01:59 PM jymmmm: I'd love to do something artistic with copper
01:59 PM CaptHindsight: funny how large dia wire scrap just disappears but the rest of your junk stays
01:59 PM miss0r: I have a few pictures of the shipping container that ran the minimum pumps when the pumping station was under constructuon. if you are interrested?
01:59 PM miss0r: CaptHindsight. I know, right? :D
02:00 PM jymmmm: miss0r: post em
02:00 PM miss0r: https://imgur.com/a/LQSLG6a
02:01 PM miss0r: I bought an insulated shipping container and had at it
02:02 PM miss0r: the container was only on a 650amp supply (minimal pumping)
02:02 PM miss0r: Basically the entire station was routed out of the sewage line, but some of the older lines had to be pumped from one to the other
02:03 PM miss0r: I spend 1˝ months building that thing. *good times*
02:03 PM jymmmm: miss0r: I like the "din rail mounted" PS =)
02:03 PM jymmmm: looks like a fun build
02:04 PM miss0r: sadly I didn't have a say on *all* the equipment in there. That particular PS and its router was a demand from IT
02:04 PM miss0r: It was.
02:05 PM miss0r: That container was only used for ~6 months, then scrapped :o
02:05 PM jymmmm: ouch
02:06 PM miss0r: sadly, its not on any of the photos.. But it had installed some rather nice exhaust fans.
02:06 PM miss0r: Under full load, that container dissapated ~31kw of heat inside of itself
02:06 PM miss0r: also, it was black and outside in the sun...
02:07 PM miss0r: :]
02:09 PM Loetmichel: jymmmm: it will only waste 50W for a short period of time, the cells should go up from 3 to 2,7V pretty quickly
02:09 PM Loetmichel: 3,7V
02:10 PM jymmmm: Loetmichel: What about 0.1 ohm?
02:23 PM jymmmm: Um, that does NOT look like 100A to me... https://www.amazon.com/uxcell-Barrier-Terminal-Strip-Connector/dp/B07DM1HSW6
02:24 PM Loetmichel: Jymmm: if you make the resistor to small it will have problems with empty battery packs
02:24 PM Loetmichel: the PSU may go into protect
02:26 PM jymmmm: Loetmichel: low current protect?
02:27 PM jymmmm: oh, OCP
02:28 PM Loetmichel: indeed
02:29 PM Loetmichel: s/resistor/resistance
02:31 PM Loetmichel: what you could do is buy 5 0.1 ohm 10W resistors and 5 10A capapble switches. then pit the resistors in series to make a .5Ohm one... and put a switch parallel to each resistor... poor mans current regulation
02:31 PM Loetmichel: start with all resistors shorted, switch off the shorts one by one until the PSU goes out of "ticking" mode ;)
02:32 PM jymmmm: resistor substituion box =)
04:06 PM Deejay: gn8
04:26 PM jymmmm: $218 for a SOUND CARD https://www.amazon.com/Creative-Internal-Quad-Core-Processor-SABRE-class/dp/B07T9YYVV6/
04:28 PM * SpeedEvil looks at his AWE32.
04:30 PM Tom_L: jymmmm, it comes with a custom volume knob.
04:30 PM jymmmm: Tom_L: theres one even more expensive without the volume knob
04:31 PM Tom_L: i'd feel cheated
04:31 PM jymmmm: I've gotten laptops for cheaper than that
04:31 PM jymmmm: new
04:31 PM Tom_L: and here i thought you were gonna buy us each one
04:31 PM jymmmm: And the sad thing, it'll be obslete in 6 months
04:32 PM Tom_L: think of the sound card scope you can make with it...
04:32 PM jymmmm: Tom_L: Sure, insert your credit card here --> [ ]
05:03 PM roycroft: exqueeze me
05:03 PM roycroft: this be the 21st century
05:03 PM roycroft: "insert" your credit card?
05:03 PM roycroft: we do the drive-by card reading these days
05:14 PM roycroft: line your pockets with lead if you don't want to give away your numbers
05:17 PM SpeedEvil: https://www.youtube.com/watch?v=gaIVzdJ2V5w Excessive belt grinder is excessive.
05:28 PM perry_j1987: ahhh
05:28 PM perry_j1987: just picked up a portable air conditioner for the shop
05:28 PM perry_j1987: dropped the temp from 95 in here already down to 85 in few minutes
05:29 PM perry_j1987: this is going to be so much better haha
05:33 PM andypugh: That went quite well. https://photos.app.goo.gl/e7CGEzUyVyi6HAUH7
05:33 PM andypugh: 50mm deep x 11mm minor dia Acme thread, single-pointed
05:35 PM andypugh: (that’s 2 inches by 1 11/16 barleycorns for the US.)
05:36 PM Tom_L: nice one
05:38 PM andypugh: I decided not to use the tap in the end.
05:38 PM jymmmm: SpeedEvil: Has, yu ain't seen anything yet
05:39 PM jymmmm: SpeedEvil: HE's got some seriously cool toys/tools too https://www.youtube.com/watch?v=UXzoM-WXWRw
05:39 PM SpeedEvil: :)
05:41 PM andypugh: That’s a _serious_ shaper
05:42 PM W1N9Zr0: the part where he feeds a benchop grinder to the big grinder is great
05:42 PM W1N9Zr0: *benchtop
06:17 PM jymmmm: SpeedEvil: So, how's that for a belt sander?
06:18 PM SpeedEvil: I've not watched that yet, got distracted
06:18 PM jymmmm: no worries
06:19 PM jymmmm: andypugh: Like I said, he has some nice toys =)
06:20 PM jymmmm: perry_j1987: Wait till the humidity goes down
06:20 PM andypugh: I have time for anyone who likes shapers. :-)
06:20 PM jymmmm: andypugh: =)
06:21 PM andypugh: My dad had two in his workshop for a while, but we gave the big one to a friend of mine.
06:22 PM andypugh: (Physically big one, the little one can do very nearly the same size of work)
06:22 PM Tom_L: do you have one?
06:22 PM andypugh: No, no space.
06:23 PM andypugh: So the little one is sat 200 miles away not being used at all.
06:23 PM Tom_L: you _really_ don't need a kitchen...
06:23 PM andypugh: I could use it to slice bread, I suppose.
06:23 PM Tom_L: living space sports the lathe..
06:23 PM perry_j1987: buddy just gave me 5 gallons of coolant concentrate... new bucket
06:23 PM Tom_L: nice
06:23 PM Tom_L: what kind?
06:24 PM Tom_L: that's about $150 - 200 worth
06:24 PM perry_j1987: GreenCut
06:25 PM perry_j1987: 20 parts water to 1 part GreenCut the label says
06:25 PM Tom_L: so does google
06:25 PM Tom_L: i mix mine 4oz / gal for the rustlick
06:26 PM * jymmmm just got a 400pg spring catalog
06:26 PM Tom_L: good thing.. corona got you runnin low on TP?
06:27 PM perry_j1987: lol
06:27 PM perry_j1987: so this portable ac unit i just picked up today
06:27 PM Tom_L: perry_j1987, you could use a refractometer to check it
06:28 PM Tom_L: i don't because i use mine for mist only
06:28 PM perry_j1987: it has some sort of tube with a nozzle on it that you hook up and run through the exhaust port
06:28 PM perry_j1987: he said it sprays the condensation through the nozzle and out the exhaust port of the ac unit
06:29 PM perry_j1987: was just thinking hmmm if you could use that to do spray mist coolant without compressed air just fluid pressure etc
06:29 PM perry_j1987: could be useful
06:29 PM andypugh: Tom_L: I do so need a kitchen, where else would I do the pewter casting?
06:29 PM Tom_L: oh damn, that's right... i nearly forgot about that
06:38 PM snakedGT is now known as snaked
07:21 PM skunkworks: I always wanted to cnc the shaper..
07:22 PM skunkworks: A guy in WI has cnc'ed a shaper for cutting splines and such
07:22 PM andypugh: A CNC shaper can be a gear cutter.
07:22 PM SpeedEvil: 5 axis CNC shaper would be fun and completely impractical.
07:23 PM CaptHindsight: for wood or metals?
07:23 PM andypugh: I was surorised that the massive Fireball shaper didn’t have power downfeed.
07:23 PM SpeedEvil: CaptHindsight: yes
07:23 PM skunkworks: https://www.youtube.com/watch?v=4meWNvfgbsE
07:25 PM skunkworks: we have a universal table we could graph on it...
07:25 PM skunkworks: all sorts of axis...
07:25 PM skunkworks: we have so many projects we could keep youtube in videos for years. ;)
07:26 PM andypugh: The hard part is making good videos.
07:26 PM skunkworks: If I didn't have a real job...
07:26 PM andypugh: The production quality of Binky, ToT, Clickspring etc takes talent, time and a good speaking voice.
07:27 PM skunkworks: andypugh: yes. That takes discipline..
07:27 PM skunkworks: Agreed.
07:27 PM SpeedEvil: andypugh: and more importantly, starting ten years ago
07:28 PM andypugh: I already did that bit. https://www.youtube.com/watch?v=ZhICrb0Tbn4&t=2s
07:28 PM perry_j1987: ToT is one of the best parts of youtube
07:29 PM andypugh: I like Clickspring, Binky and Sampson Boat Co more.
07:29 PM skunkworks: heh - https://www.youtube.com/watch?v=JCEwlfJj__A
07:30 PM skunkworks: 2007...
07:30 PM skunkworks: Samson boat co? Hmm - more youtube to watch.
07:30 PM andypugh: ToT is funny, but has somehow built up a reputation as the best machinist on YouTube (amongst those who don’t watch Abom, Clickspring, Keith Fenner…..) and that bugs me
07:30 PM skunkworks: Binky has a new video this weekend..
07:30 PM andypugh: Already watched it.
07:31 PM skunkworks: Oh- patrion!
07:31 PM andypugh: (That list was all channels that I pay for)
07:31 PM skunkworks: heh
07:31 PM SpeedEvil: I am currently paying (for free through youtube premium) for a subscription to nasaspaceflight
07:31 PM SpeedEvil: Who are currently covering extensively open-air rocket bending and welding
07:32 PM skunkworks: TOT - he mentioned using ethercat in his maho conversion.. That should be interesting. he is a mach guy.
07:32 PM andypugh: I also pay for Naomi Wu, because she sometimes has a really interesting take on stuff. But she is a but hit-and-miss.
07:33 PM SpeedEvil: https://www.youtube.com/watch?v=rFNPBb_2HZ8 - a _lot_ of 4mm stainless steel
07:33 PM andypugh: skunkworks: Not entirely Mach3: https://forum.linuxcnc.org/12-milling/33035-retrofitting-a-1986-maho-mh400e?start=1200#148211
07:35 PM skunkworks: andypugh: holy-shit! how did I miss that. oh yah. I have 2 kids younger than 8
07:35 PM skunkworks: Cool!
07:36 PM jdh: I never thought of him as a great machinist. but I really like the videos
07:37 PM skunkworks: Yah - it is all about his humor.
07:37 PM andypugh: One if these days I am going to tell my nephew (9) “I have stuff older than you in my fridge, sunshine”
07:37 PM skunkworks: heh - my dad likes to say things like that - this machine is older than all of us combined..
07:40 PM skunkworks: Well - cool. TOT had done a video showing how mach4 now has css - So I just figured..
07:40 PM andypugh: jdh: Oh, I doubt that he would claim that himself. But you quite often see comments in other videos (and other places) like “You need ToT for that” where Fenner, Abom, Gotteswinter (or even Skunkworks or I for the wierd CNC stuff) would be a better choice.
07:41 PM SpeedEvil: ToT makes great videos.
07:41 PM andypugh: skunkworks: Well, he might well go for Mach4 and EtherCAT. If that is what he is familiar with,
07:42 PM andypugh: SpeedEvil: Oh, yes, absolutely. But then, have you watched Project Binky? That’s TV ready in my opinion.
07:42 PM skunkworks: Sure.. It probably comes down to - artsoft will probably bend over backwards to support the project.
07:42 PM SpeedEvil: yes.
07:42 PM SpeedEvil: And agree.
07:42 PM SpeedEvil: I watched a few episodes of binky, and am saving the rest for if I have a very bad day
07:43 PM skunkworks: after videos like.. https://youtu.be/G28eXR42e9w
07:43 PM skunkworks: and they do 90% of their stuff with a grinder an welder. It is quite amazing..
07:44 PM andypugh: I have recently been watching a lot of https://www.youtube.com/watch?v=Sw5VU0GE_Wo which is basically a TV panel game show of non-TV folk. But really very funny,
07:45 PM SpeedEvil: https://www.youtube.com/watch?v=qkoPYdeHF70 on the topic of topical gameshows
07:46 PM skunkworks: (I just watched the 2 seasons of Dirk Gently.. I rather enjoyed them.)
07:49 PM skunkworks: It has been so long since I read any of Douglas adams - it probably helped..
07:50 PM jymmmm: Loetmichel: 100A no problem... https://www.youtube.com/watch?v=wFO23F-sVOY
07:51 PM Rab: I read the books, haven't seen the show...but it sounded more successful than 40 years of HHG2G adaptations.
08:00 PM andypugh: I have met DA.
08:00 PM andypugh: He gave a talk to our SF Soc back in the 80s. (before he was dead)
08:01 PM andypugh: I think some of my friends knew him fairly well.
08:01 PM Rab: I saw him in Texas, promoting Starship Titanic...I guess that was late '90s.
08:02 PM skunkworks: wow - neat. He is one of my favorite authors..
08:02 PM skunkworks: I also like the work he did on dr who...
08:03 PM skunkworks: one of his dirk gently books is pretty much one of the dr who stories from the 70's
08:04 PM andypugh: <name drop> I got invited to Charles Stoss’s birthday party.
08:06 PM skunkworks: heh - I don't think I can name drop anyone...
08:08 PM skunkworks: My dad sold a compressor for the band 'simply red'... ;)
08:09 PM skunkworks: *audio
08:10 PM andypugh: My sister used to like Mick Hucknal a _lot_ less than he liked her. They used to frequent the same club (after he was famous) and he was really bad at taking “No” for an answer.
08:12 PM Rab: On that subject, Bruce Sterling threw a yearly party here. I went to the last one. On a center table, he had various odds and ends for guests to admire. There was some kind of 3D-printed widget, which at that time was a rare and implausible thing. It had a chalky, bonelike aspect. I thought to myself, "This doesn't seem very robust..." and it snapped in my testing hands.
08:12 PM SpeedEvil: :)
08:12 PM andypugh: Probably glue-bonded starch.
08:13 PM Rab: The first but not the last time I had a low opinion of 3D printing, and probably not the last time I've been an asshole at a party. :(
08:13 PM SpeedEvil: Well, early 3d vat-LASER printers were around
08:13 PM SpeedEvil: at ridiculously high prices quite a while ago
08:13 PM andypugh: It was good dimesnionally, but not structurally. Which at the time was all anyone thought it would ever be,
08:14 PM XXCoder: hm isnt terracotta just clay before baking? wouldnt we be able to make custom terracotta stuff
08:14 PM XXCoder: (random thought)
08:14 PM andypugh: Now my employer will cheerfully 3D print aluminium suspension parts for cars.
08:14 PM SpeedEvil: XXCoder: in principle, yes.
08:14 PM andypugh: XXCoder: Yes, it’s a thing, and quite ppular
08:14 PM XXCoder: cool :)
08:15 PM SpeedEvil: Various 'clays' let you make very robust ceramics or even metals.
08:15 PM andypugh: https://www.3dwasp.com/en/ceramic-3d-printing-wasp-clay/
08:15 PM Rab: andypugh, starch sounds about right. I know the local university had a 3D printing process which used a wax consumable for structural support, but I don't know what the parts were like.
08:15 PM SpeedEvil: http://www.metalclay.co.uk/categories/Metal-Clay/
08:17 PM andypugh: Have you ever tried throwing a pot on a wheel? It’s great fun, and really quite easy if you have ever used a lathe. (Apparently non lathe-users tend to let their hands drift round with the pot)
08:17 PM XXCoder: lol now thats interesting cross application of skills
08:18 PM andypugh: metal clay sounds like fun. But I will point out that Shapeways will investment cast real gold from an STL file now.
08:18 PM Rab: andypugh, I tested your module loading script with updated packages; did you happen to catch my report on that?
08:18 PM andypugh: Rab: Maybe?
08:18 PM andypugh: I saw one.
08:18 PM Rab: andypugh, let me find it.
08:19 PM Rab: <Rab> andypugh, not sure if you're around, but I updated my system to use current 4.14.174-rtai packages from http://www.linuxcnc.org/temp/. The module load/unload test still hangs my system: 5 runs hung at passes 777, 49, 917, 2375, and 813, which seems similar to the spread of the last test.
08:20 PM andypugh: Ah, yes, I did see that.
08:20 PM andypugh: (Remember the numbers. I can do numbers. Not faces or names..)
08:20 PM andypugh: Though I think 49 is a new record
08:21 PM Rab: So basically the same spread. But 4.14.174-rtai still works great for actually running LinuxCNC, and Intel graphics started working at my monitor's resolution.
08:21 PM perry_j1987: do you guys see libmotif3 in wheezy?
08:21 PM perry_j1987: doesnt show for me with apt-cache search
08:21 PM andypugh: Never looked
08:25 PM Rab: perry_j1987, apparently it was non-free at least at that point. Do you have the non-free repo?
08:25 PM perry_j1987: nope
08:25 PM andypugh: Try adding it.
08:25 PM andypugh: (I am assuming you know how, as that is less insulting than assuming you don’t)
08:26 PM Rab: Also I only see libmotif-dev and libmotif4 in Wheezy non-free.
08:26 PM perry_j1987: sources.list shows http://archive.debian.org/debian wheezy main contrib non-free
08:26 PM Rab: Tried just searching libmotif?
08:27 PM andypugh: Or “motif”
08:27 PM perry_j1987: nothing shows for libmotif
08:27 PM perry_j1987: motif search shows tk
08:28 PM Rab: Time to solve this problem Slackware style!
08:29 PM andypugh: Search the web. Bear in mind rthat apt-cache serch linuxCNC won’t find you anything,
08:30 PM Rab: There are packages for Jessie, which might trade one problem for two.
08:30 PM andypugh: Try grabbing the .deb. It;s likely to work.
08:31 PM Rab: https://packages.debian.org/jessie/libmotif3
08:44 PM jdh: I would have thought motif died out 25 years ago
08:45 PM perry_j1987: ok this wheezy version of linuxcnc is causing me trouble lol
08:45 PM roycroft: motif did, but lesstif is still around
08:45 PM andypugh: Wheezy is rather ancient
08:45 PM roycroft: jessie is ancient at this point
08:46 PM roycroft: i would never deploy anything new on jessie
08:46 PM roycroft: i'm trying to get the last few services away from stretch
08:46 PM andypugh: There is currently only one person to blame that the latest RTAI release is on Wheezy.
08:47 PM perry_j1987: ok what would you guys do, I have a couple gae350n motherboards (amd e350) matching running a mini lathe and a 6040 router.
08:47 PM perry_j1987: i use a parallel breakout board on both setups
08:47 PM perry_j1987: so i downloaded wheezy as i was told to do from the linuxcnc site
08:48 PM Tom_L: andypugh, are you getting anywhere with that?
08:49 PM andypugh: I have made a lot of negative progress. Which is, at least, instructive.
08:49 PM Tom_L: has the author replied in a positive way at all?
08:50 PM roycroft: i would say that something like linuxcnc is more tolerable on an ancient os like wheezy or jessie than a general purpose computer, since noone in their right mind connects a linuxcnc machine to the internet
08:50 PM andypugh: Well, yes and no. He is keen that I re-run the test on a system identical to his reference system, which is fair. But I am not doing well at making that work.
08:51 PM roycroft: but i would still try hard to avoid such old stuff
08:52 PM * Tom_L hugs his 'old stuff'
08:52 PM Tom_L: it has run without a hitch from the get go except when it got above 95F in the shop
08:52 PM perry_j1987: i just want to get this elo touch serial monitor working lol
08:54 PM * skunkworks connects his linuxcnc machine to the internet.. how else am I going to watch videos while machining?
08:54 PM roycroft: i don't remember the details, but i installed a fairly new (less than 15 years old) elo usb touch screen to a linuxcnc machine running jessie or stretch and it was almost plug and play
08:54 PM roycroft: on your ipad?
08:55 PM roycroft: i bring mine out to the shop when i need to monitor email or watch videos or something during idle periods while i'm working
08:55 PM perry_j1987: its an old monitor from a gas station point of sale system
08:55 PM perry_j1987: elo touch 1525L its serial no usb
08:55 PM roycroft: usb is a serial interface
08:55 PM roycroft: and the elo drivers are fairly agnostic about that
08:55 PM perry_j1987: you know what i mean :P
08:56 PM roycroft: yes, i do
08:56 PM roycroft: but i said that to make the point about the elo driver being agnostic
08:56 PM perry_j1987: they have separate drivers for usb and serial
08:57 PM perry_j1987: i was using the monitor on a previous install which apparently i had jessie installed
08:57 PM perry_j1987: then i found out about the wheezy one running better with breakout boards and installed that
08:57 PM perry_j1987: but this repo restriction is annoying
08:57 PM skunkworks: I think all our machines are up-to-date and connected to the internet.
08:57 PM * skunkworks shrugs.
09:02 PM perry_j1987: so is there newer version i can use well with these parallel breakout boards?
09:02 PM roycroft: i just can't fathom putting a cnc control computer on the internet, other than for software installation/upgrades, if absoulutely necessary
09:02 PM roycroft: on the local lan, sure
09:02 PM skunkworks: perry_j1987: what step rate are you looking for?
09:02 PM roycroft: but not on the internet
09:02 PM perry_j1987: whatever is useable
09:03 PM perry_j1987: im not doing anything "Fast" its just a mini lathe and a 6040 lol
09:03 PM skunkworks: with rt_preempt I have seen computer hardware step at 40khz..
09:03 PM skunkworks: This was HP i5's
09:04 PM perry_j1987: i havnt really delved into know what's good or bad
09:04 PM perry_j1987: whats useable etc
09:05 PM skunkworks: https://www.youtube.com/watch?v=OMreIgsMnW8
09:05 PM perry_j1987: why's openoffice on linuxcnc distros
09:06 PM skunkworks: On the stretch iso - it is libre office
09:07 PM andypugh: perry_j1987: Why not? They are based on the stock ISO,
09:07 PM skunkworks: I didn't know wheezy had openoffice..
09:08 PM perry_j1987: just took extra long to update the system in the shop over LTE teathering lol
09:08 PM andypugh: Would you prefer that the LinuxCNC was an absolute minimal system?
09:08 PM perry_j1987: well i mean there's mousepad for editing gcode and such
09:08 PM perry_j1987: already
09:08 PM andypugh: (I can see the argument)
09:08 PM Tom_L: roycroft, having irc chat on your mill is a must!
09:08 PM perry_j1987: you guys arnt chatting from your mills? :P
09:09 PM andypugh: Eew! One thing that is certain, the default editor on the next ISO will be geany.
09:09 PM Tom_L: i hope so
09:09 PM Tom_L: and mate desktop!
09:10 PM skunkworks: heh
09:10 PM Tom_L: just my 2c
09:10 PM skunkworks: Riding the train of BDI -> Ubuntu -> debian - I don't care what the desktop is.
09:11 PM Tom_L: yeah it doesn't make that much difference
09:11 PM Tom_L: andypugh, jepler put a decent set of things on the pi image
09:12 PM skunkworks: my daily driver is xfce.. (because it started as a linuxcnc install)
09:12 PM perry_j1987: kind of suprised there's no more cohesive interface like pathpilot for offical linuxcnc
09:12 PM skunkworks: heh - again - started with axis ui - still use it.
09:13 PM Tom_L: i think it used gnome desktop which i didn't mind at all
09:13 PM andypugh: perry_j1987: There are many
09:13 PM Tom_L: skunkworks, i haven't jumped on the qtpyvcp band wagon just yet
09:14 PM skunkworks: Tom_L: no.. I probably like the guts more than the interface. Atleast currently
09:14 PM perry_j1987: asside from tormach what other big players are there using linuxcnc
09:14 PM Tom_L: i'm really too used to axis now to switch
09:15 PM skunkworks: Probe basic looks cool. But I have not tried it.
09:15 PM Tom_L: it's got alot in it
09:16 PM Tom_L: some could argue too much?
09:16 PM skunkworks: right. But for people that are used to the mach style screen sets...
09:17 PM pink_vampire: hi
09:17 PM andypugh: perry_j1987: I think Tormach are the biggest player.
09:17 PM skunkworks: (that is kinda why path pilot is the way it is.
09:17 PM andypugh: Which suits me, as they handle their own support.
09:17 PM skunkworks: and they have given back..
09:17 PM andypugh: Aye.
09:18 PM andypugh: Nigtmare scenario would be if a big ChinaCNC Co started to sell millions of LinuxCNC units and sent thr support to our forum.
09:19 PM Tom_L: not their nature to take something that's free
09:20 PM andypugh: No, they steal something expensive, like Mach3
09:21 PM Tom_L: i can't think of any control more versatile than linuxcnc honestly
09:22 PM pink_vampire: andypugh: after you crush your machine because of mach, yes it is become very expensive
09:24 PM andypugh: You can crush your machine with LinuxCNC too. Apparently this machine is now mangled scrap: https://www.youtube.com/watch?v=F01FI52zFg0&t=31s
09:25 PM andypugh: But he was running LinuxCNC 2.6-pre0 and a home-built GUI…
09:25 PM Tom_L: was he complaining about it?
09:25 PM andypugh: Only to me.
09:26 PM pink_vampire: I've used mach3 at the past, and I run the same Gcode with the same tools, and the same setup, and one time mach3 had a glitch and the part become scrap.
09:26 PM pink_vampire: andypugh: ^
09:26 PM andypugh: I helped him set it up in about 2011. (in that I went to his house)
09:27 PM Tom_L: what gcode did he use for it?
09:27 PM Tom_L: sync axis i'm sure
09:28 PM skunkworks: Ugh. We have the K&T that if it did something 'odd' it would bend and break things./.
09:29 PM andypugh: It’s complicated. He has found that whenever he uses the C axis, if he stops the program and then switches back to “Auto” some time later it executes the last line of the current programme.
09:31 PM andypugh: which does sound like a bug in LinuxCNC rather than his setup, but then he is also running an ancient pre-release version.
09:31 PM Tom_L: isn't cradek winding similar coils?
09:31 PM pink_vampire: how is the 3018 cnc?
09:31 PM skunkworks: I think cradeks are a bit smaller ;)
09:31 PM Tom_L: that looked pretty small to me
09:32 PM pink_vampire: do you think it will work for making small aluminum parts?
09:33 PM perry_j1987: i have a 6040
09:34 PM perry_j1987: the bigger version
09:34 PM andypugh: Roger is pretty good at small parts. i think he might be making coil-on-plug ignition coils there.
09:34 PM perry_j1987: but i have a 2.2kw spindle on this
09:34 PM skunkworks: https://www.youtube.com/watch?v=hd2Mjv1m_Uw
09:35 PM cradek: judging from that gcode, I suspect the wire is about 65 micron, which explains how he can just pull it off the spool
09:35 PM skunkworks: that is one of these coils http://electronicsam.com/images/house/Spaceveiwsmall.png
09:36 PM Tom_L: skunkworks, yeah i just looked on his page
09:36 PM pink_vampire: https://www.youtube.com/watch?v=YKCokjYhGCY
09:36 PM cradek: I'm doing smaller ones now too :-)
09:36 PM skunkworks: cradek: do you sneeze and break the wire?
09:36 PM cradek: I rarely break it anymore
09:37 PM cradek: getting the machine tuned required a lot of rethreading which is pretty darn hard to do
09:37 PM pink_vampire: cradek: AMAZING WORK!
09:37 PM cradek: these are finer wire than the accutron coils: https://www.ebay.com/itm/383586015251
09:37 PM skunkworks: cradek: I probably want a new crystal...
09:38 PM Tom_L: does the wire short out? why the need to rewind?
09:38 PM andypugh: cradek: But do yours squirt fire? https://youtu.be/V-2LNAH6zOA
09:39 PM cradek: Tom_L: it just breaks somehow, and the coils are open, they're old
09:39 PM Tom_L: huh
09:39 PM cradek: probably corrosion from battery exhaust is involved?
09:39 PM cradek: some definitely have mechanical stress, because you can see cracks in the coating
09:40 PM skunkworks: maybe the glue shrinks?
09:40 PM cradek: yeah, quite possible
09:41 PM cradek: some have obvious corrosion damage, but most look fine and are just open.
09:41 PM skunkworks: have you had any of yours open?
09:41 PM cradek: I've had two returns, but they both had mechanical damage (installed with, um, inadequate care)
09:42 PM skunkworks: poop
09:42 PM cradek: "ok you broke it, I'll fix it for full price"
09:44 PM cradek: the coils go inside the tuning fork cups, it's easy to imagine how you could gouge it if you're clumsy
09:45 PM andypugh: It’s worth pointing out that in that miniature fuel injector video, the blueprint on the wall is the V10 F1 enigne that he is making a 1/4 scale running replica of
09:46 PM andypugh: I have seen the titanium conrods, and the spark plugs.
09:46 PM skunkworks: andypugh: cool. it looks like the injector works.
09:47 PM andypugh: He is a man with time, dedication and plenty of money.
09:47 PM andypugh: (and talent)
09:47 PM Tom_L: he'd have to have at least 2 of those
09:48 PM andypugh: So he bought a Deckel CNC and has dozens of toolholders. He doesn’t skimp.
09:48 PM cradek: goodnight folks! cheers to all, stay well.
09:49 PM Tom_L: yeah goodnight here as well
09:51 PM andypugh: As in, he decided his workshop was too small, so had a new one built. I visited, this is his LinuxCNC Hardinge with the control console he built in its new home: https://photos.app.goo.gl/BTon7Kt5agABUZiq9
09:51 PM skunkworks: before (after chris fixed/cleaned it) http://electronicsam.com/images/house/Spaceveiwsmall.png
09:51 PM skunkworks: after a few years of wearing..
09:52 PM skunkworks: http://electronicsam.com/images/greenmachine/IMG_20200619_213846.jpg
09:52 PM skunkworks: I seem to hit it on things all the time.. Mostly door knobs.
09:52 PM andypugh: I think my sister might wear one of those.
09:52 PM perry_j1987: ok so on my 6040 i have the er20 collet, so no repeatable holders etc.
09:52 PM perry_j1987: in my tool library i should just set all tools to number 1 and have the center line defined is all
09:52 PM perry_j1987: and then each op i just set my z height and go
09:52 PM skunkworks: andypugh: really - I fell in love with the spaceveiw a long time ago. I bought 2 off ebay for parts and chris made one.
09:53 PM andypugh: (My sister defintely wears a runing-fork watch of some sort. She’s a Jewelr, and not like other girls :-)
09:53 PM skunkworks: heh - it is cool tech.. from the 50's 1 transistor..
09:53 PM andypugh: She is also _really_ cute for an old bird.
09:54 PM skunkworks: how old is she? asking for a friend..
09:54 PM andypugh: 52
09:54 PM skunkworks: Hmmm....
09:54 PM perry_j1987: next skunkworks asks "pics or it didnt happen"
09:54 PM skunkworks: maybe I could be a 'kept man'...
09:55 PM perry_j1987: haha
09:55 PM andypugh: Being a jeweler doesn’t pay well
09:57 PM roycroft: i used to date a jeweler
09:57 PM roycroft: she paid well
09:57 PM roycroft: every time she made something she paid and paid and paid
09:57 PM roycroft: and usually ended up giving it away
09:58 PM roycroft: it would cost her $500 to make a $100 pair of earrings
09:59 PM andypugh: Sounds about right
09:59 PM roycroft: her work always looked great though - she's a real artist
10:00 PM roycroft: she also does, or did, stained glass
10:00 PM roycroft: and lost less money on that than on the jewelery
10:00 PM skunkworks: My grandfather make jewelery.. Amoung all his other hobbies.
10:00 PM skunkworks: made
10:03 PM rue_mohr: hey whats a good machine velocity limit for a plasma cutter?
10:03 PM roycroft: 42
10:03 PM skunkworks: how thin do you want to cut?
10:03 PM skunkworks: ;)
10:03 PM andypugh: I like doing stained glass, but don’t partcularly like the result But the process is fun.
10:04 PM roycroft: my partner worked exclusively with copper foil
10:04 PM roycroft: i haven't done a lot of stained glass, but i like using lead came
10:04 PM rue_mohr: 42m/s?
10:04 PM skunkworks: https://youtu.be/mOg5C_TusdM
10:04 PM rue_mohr: hmm, how about some kinda heavy sheet
10:05 PM rue_mohr: 30 gauge
10:05 PM roycroft: 42 parsecs/light year
10:05 PM roycroft: you want to go a lot faster than the speed of light for best results
10:05 PM rue_mohr: fathoms per ms?
10:06 PM rue_mohr: skunkworks, give me a usefull number so I can target my machine build, I'm only building this to make ONE project from 1/8" plate
10:06 PM andypugh: rue_mohr: Furlongs per fortnight… But, really, it comes down to what is the _thinnest_ you might want to cut.
10:07 PM rue_mohr: lets say 30 guage
10:07 PM rue_mohr: I think thats what the roofing I got back when is
10:07 PM rue_mohr: not doing roofing tho
10:07 PM rue_mohr: I'm just using it as a ref
10:08 PM rue_mohr: I'm doing my own dc servos, so knowing a max velocity would really help me
10:09 PM skunkworks: I think most plasma cutters have charts that give you the speed/thickness
10:09 PM andypugh: Sorry, I just said my piece, I don’t speak “gauge”and don’t (yet) have a plasma. But look at the cut tables for the plasma source you intend to use.
10:09 PM skunkworks: That would be a good start
10:09 PM rue_mohr: I'm not trying to proffess in the field, I'm just building a machine to cut one 1/8" part
10:10 PM rue_mohr: throwing me a ballpark would really help me
10:10 PM rue_mohr: my guess so far is 0.5m/s
10:10 PM * Tom_L throws rue_mohr rigley field
10:11 PM rue_mohr: that seems more like a jog speed to me, but I'v never done plasma cutting
10:11 PM rue_mohr: by hand or machine
10:11 PM roycroft: i have done hand cutting with a plasma cutter
10:11 PM roycroft: and it goes a lot slower than that
10:11 PM rue_mohr: ok, so say 1/16 material?
10:11 PM skunkworks: It depends on what plasma cutter you are using
10:11 PM roycroft: you've talked so far about 1/8", 30ga, and 1/16"
10:12 PM rue_mohr: ARG
10:12 PM roycroft: and want a single answer
10:12 PM Tom_L: https://www.plasma-automation.com/partsdatabase/CuttingCharts/hpr260.pdf
10:12 PM roycroft: and you've been given the answer
10:12 PM roycroft: look at the charts for your cutter
10:12 PM rue_mohr: ok, lets try this, whats the velocity limit for your machine skunkworks ?
10:12 PM roycroft: and use the recommendation for your material type/thickness as a starting point
10:13 PM roycroft: then experiment and see what works well for you
10:13 PM roycroft: then make your part
10:13 PM rue_mohr: I need to know what number to use when designing the dc motor loop controllers
10:14 PM roycroft: look at the chart for your plasma cutter
10:14 PM roycroft: and use that number
10:14 PM skunkworks: rue_mohr: 200ipm iirc
10:14 PM rue_mohr: ok!
10:15 PM roycroft: or use something random like 200 ipm
10:15 PM roycroft: which may or may not be pertinent to your machine
10:15 PM rue_mohr: so your at about 85mm/sec
10:15 PM rue_mohr: cool, I was targeting 500mm/sec
10:15 PM rue_mohr: ok, so I'm not terribly slow
10:15 PM rue_mohr: excellent!
10:16 PM rue_mohr: so, if I may ask this..
10:17 PM rue_mohr: do I need to varry the torch height for flat material? there is an implification that your start high and drop down after the pierce
10:17 PM skunkworks: This is all info that your plasma torch will dictate.
10:18 PM rue_mohr: so every plasma cutter is completely different in every aspect
10:18 PM skunkworks: pierce lenght hight and such
10:18 PM rue_mohr: you cannot just pick up a plasma cutter and know anything about how to use it
10:18 PM rue_mohr: ?
10:19 PM roycroft: if you are experienced with plasma cutters you can probably pick up a random plasma cutter and use it effectively in a short time
10:19 PM rue_mohr: tho it does look like it could be done with a solinoid if I have to
10:19 PM rue_mohr: I'm not
10:19 PM rue_mohr: I dont have one, I'm relying on people who have for general information
10:19 PM andypugh: rue_mohr: Look on the linuxCNC forums for “PlasmAC” which has become a reallly quite capable plasma controller.
10:20 PM roycroft: and the general information we keep giving you is that your plasma cutter manufacturer will publish specifications that will tell you what will probably work well
10:20 PM roycroft: and that you should follow those recommendations
10:20 PM rue_mohr: ah, you dont ahve to start high if you start on an edge.. it looks like...
10:20 PM andypugh: With integrated torch-height control.
10:20 PM rue_mohr: I dont need it to work perfect the first time
10:21 PM Tom_L: gnite gents
10:21 PM roycroft: the thing is, you've told us absolutely nothing about the plasma cutter you're planning on using
10:21 PM roycroft: but expect someone here to be able to give you detailed information about how to operate it
10:22 PM rue_mohr: the head is laying on the shop floor
10:22 PM rue_mohr: its not mine and I dont have a power supply
10:22 PM rue_mohr: and I'v never used it
10:22 PM roycroft: which is why multiple people have told you to follow the manufacturer's recommendations as a starting poing
10:22 PM roycroft: point
10:22 PM rue_mohr: so, let me see if I can find out what it is
10:22 PM roycroft: because the manufacturer knows how it works better than anyone here can, since we don't know what it is
10:22 PM perry_j1987: mmm opening fresh endmill
10:22 PM perry_j1987: so sharp
10:22 PM rue_mohr: actaully, my buddy who knows plasma cutting and owns it, has never used it either
10:23 PM Tom_L: mmm opening fresh bandaid box...
10:23 PM rue_mohr: roycroft, I'm just looking for general
10:23 PM perry_j1987: Tom_L lol
10:23 PM rue_mohr: I know you put the head up against the material, trigger it, it punches thru, and you move it thru the material
10:24 PM rue_mohr: and apparently dont trigger it without material or the head burns up
10:24 PM rue_mohr: 1 min
10:25 PM rue_mohr: "I think that plasma torch is a Hypertherm PAC 135M Machine Torch (80A). I also have the PAC 135T Hand Torch. Both are to fit the PowerMax 1100."
10:25 PM rue_mohr: hmmm
10:26 PM rue_mohr: he has a manual for the powermax 1100, do I want that or the torch manual?
10:27 PM rue_mohr: (this is still cheaper and less trouble than getting the local shop who has a plasma cutter to do it)
10:27 PM perry_j1987: 18.34 for a single 2mm drill bit... worth it? :P
10:27 PM rue_mohr: perry_j1987, how long will it take you to break it?
10:27 PM perry_j1987: potentially seconds if history has anything to show
10:27 PM rue_mohr: if its within a day, I suggest a cheaper one
10:27 PM perry_j1987: you get whole days! ? :P
10:28 PM perry_j1987: luxury living
10:28 PM rue_mohr: like those unhardened, reverse rake ones from china
10:28 PM perry_j1987: that reminds me i need to treat myself and order a "NICE" set of t-handle allen wrenches some day
10:28 PM rue_mohr: they break right away but dont cost much, which is especially valuable if you break it by jogging sideways into your material
10:29 PM perry_j1987: ah yes the sideways jog break.. im familiar
10:29 PM rue_mohr: nothing like jogging at -2mm instead of 2mm
10:34 PM rue_mohr: Hypertherm PAC 135M Machine Torch <-- not finding a manual, anyone have a nack for this?
10:39 PM rue_mohr: I found a chart, but I cant tell if its for the machine or the haed
10:40 PM perry_j1987: ok i want to setup this touch plate in linuxcnc
10:40 PM perry_j1987: i believe its connected to parport pin 11
10:41 PM perry_j1987: had it working previously on mach3
10:42 PM perry_j1987: so copied the pinout over when setting up linuxcnc
10:42 PM rue_mohr: ok I can design with these numbers and learn what to use later
10:42 PM perry_j1987: hal meter shows no change on parport pin 11 when i touch the leads together
10:42 PM rue_mohr: I think I have what I need for the peak velocity and accleration I need
10:43 PM andypugh: 6mm drill, price reduced by ÂŁ520 https://www.ewequipment.co.uk/products/6-0mm-through-coolant-carbide-drill-tialn-coated-30xd-europa-tool-860323
10:45 PM andypugh: For those that don’t use £, just assume that a £ is a bit more than one of what you use.
10:45 PM andypugh: (I think that there are 3 more valuable currencies)
10:46 PM roycroft: the pound is one of the higher valued currencies at the moment
10:46 PM roycroft: but when brexit is complete, it could still be valuable, and it could be closer to the yen
10:47 PM roycroft: it's going to be interesting to see what happens
10:47 PM roycroft: i hope it doesn't tank
10:47 PM roycroft: although if it does, all those nice infill planes by norris and spiers and the like that i've been lusting after for years will suddenly become very affordable in dollars
10:48 PM roycroft: but i don't wish for the uk to be in fincial dire straits just so i can get some pretty tools for cheap
10:51 PM andypugh: At the moment everyting is up in the air. Possibly Brazil will win by sacrifiving its weak and infirm to CoVID and keeping the economy running.
10:53 PM andypugh: Anyway, time to sleep.
10:53 PM roycroft: your prime minister seems to be vacillating between stoically hanging on in quiet desperation, blathering mindlessly and contradictally, and cowering wimperingly
10:53 PM andypugh: I will read back later in the morning.
10:54 PM roycroft: he seems a changed man since he cotracted covid-19
10:54 PM roycroft: anyway
10:54 PM roycroft: i truly hope it all ends up well
10:54 PM andypugh: roycroft: Yes, he is certainly a man of parts. Few of them admirable.
10:54 PM roycroft: he has interesting hair
10:54 PM roycroft: i'm not sure if that's admirable
10:54 PM roycroft: but it's a thing
10:56 PM roycroft: the pandemic has really relegated brexit to the back pages
10:56 PM andypugh: The best think you can say about Boris is that he isn’t Trump or Kim Jong-un. Which is a pretty low bar.
10:58 PM andypugh: And, on that bombshell, time to sleep.
11:01 PM roycroft: be fair
11:01 PM roycroft: he's also not duterte
11:02 PM XXCoder: in least boris dont have what is ponentally demenia
11:02 PM roycroft: as far as i know, the prime minister can handle a glass of water by himself still
11:03 PM XXCoder: yeah
11:04 PM roycroft: some of the recent behaviors of our president make me think about that trip to walter reed last fall
11:04 PM roycroft: some had speculated that it may have been a heart attack
11:04 PM roycroft: but i wonder if it may have been a minor stroke
11:06 PM XXCoder: everyone do need privacy, im concerned more on leadership ability. his already asymal level of leadership may be gone now. if it happened to obama he would trust biden to work
11:07 PM XXCoder: but trump dont trust anyone but family, so he wont stand down and let pence do work
11:08 PM roycroft: people deserve privacy, yes
11:08 PM XXCoder: this is what happens if you get a sucky vice president. if you stand down...
11:08 PM roycroft: but the president of the united states' health is of import to everyone
11:08 PM XXCoder: indeed
11:09 PM XXCoder: its hard to say on trump case because levels of cant and can do for him is pretty close together.
11:09 PM perry_j1987: gah
11:09 PM perry_j1987: so i got stepconf set for pin11 probe input
11:09 PM perry_j1987: nothing change in on hal meter
11:10 PM perry_j1987: doublechecked with multimeter that i have continuity and its good
11:10 PM perry_j1987: touch a jumper across pin 11 and ground still nothing changing on hal meter for probe input
11:11 PM roycroft: i'm trying to decide whether to try to get my 3d printer working controlled by linuxcnc or to just continue treating ti as an appliance and do whatever is easiest to run it
11:11 PM roycroft: i'm leaning towards the appliance approach, since i have thousands of hours of printing that i need to do with it, so no time to lose
11:13 PM XXCoder: roy pink proved linuxcnc can do printing just fine. you just have to delete reprap gcodes and make seperate device to control those.
11:13 PM XXCoder: i suppse you can use linuxcnc custom gcode support system to automate those systems too
11:13 PM roycroft: yeah, i know it can be done
11:13 PM XXCoder: i'd suggest make them blocking gcode call
11:14 PM roycroft: and it would be an interesting project
11:14 PM roycroft: but i'm going to need to start printing with it soon, and it will be running almost 24/7 for a few months
11:14 PM roycroft: maybe the next one i'll use to play with linuxcnc
11:15 PM roycroft: when i bought this printer my plan was to use it as stock as possible for a while, before doing any upgrades
11:15 PM roycroft: to establish a baseline, and to see what upgrades might really be useful
11:15 PM roycroft: and so far, after a little under 2 weeks of use, my impression is that the best upgrade would be to get another printer, because they're so slow
11:16 PM roycroft: i did get a glass base plate
11:16 PM roycroft: but maybe that's all i'll do, other than enclosing it
11:16 PM roycroft: and any money i might otherwise have spent on upgrades will go towards buying a second printer
11:19 PM roycroft: i think i got really lucky
11:19 PM roycroft: some folks here recommended a creality ender as a good printer to gret
11:19 PM roycroft: get
11:19 PM roycroft: the ender 3 was recommended, but those folks had had theirs for a while
11:19 PM roycroft: and i looked at that, and at the ender 5
11:19 PM roycroft: and the 5 seemed like a really good entry level printer
11:20 PM roycroft: so far it's turned out to be exactly that
11:21 PM XXCoder: nice
11:24 PM jymmmm: Ok, the one part I need from china has been ordered
11:25 PM perry_j1987: ok i would expect pin11 on this breakout board to have 5v
11:25 PM perry_j1987: and when shorted to ground it triggers motion.probe-input
11:25 PM perry_j1987: no voltage though hm
11:27 PM jymmmm: perry_j1987: NP, got ya covered... https://www.youtube.com/watch?v=wFO23F-sVOY
11:27 PM perry_j1987: haha too much beer
11:27 PM perry_j1987: i .... sad to say... did not have the motion controller powered up haha
11:27 PM perry_j1987: boy thats embarassing
11:28 PM perry_j1987: and im empty time to crack open another
11:28 PM roycroft: maybe the second printer i should build from scratch
11:29 PM perry_j1987: was seriously scratching my head.. the 5v led light was on (getting power to the BOB from the computer) lol
11:29 PM perry_j1987: then it dawned on me... the power switch to the rest of the whole thing was off haha
11:31 PM jymmmm: perry_j1987: how many 5V amps do you need?
11:32 PM perry_j1987: its one of those BOB boards with the main power and then a secondary 5v connection
11:33 PM jymmmm: perry_j1987: Right, but how many amps at 5V are needed?
11:33 PM perry_j1987: no idea
11:33 PM jymmmm: 500ma?
11:33 PM jymmmm: do you have 4to23VDC already at the BOB?
11:35 PM jymmmm: perry_j1987: $0.35/each gives 1.8A contonous https://www.aliexpress.com/item/4000785712046.html
11:35 PM perry_j1987: i fixed the issue
11:35 PM perry_j1987: i was drinking too much beer near the cnc machines and had forgotten to turn it on :P
11:35 PM jymmmm: Yeah, but no need to steal usb power is what I'm saying, one less cable too
11:37 PM perry_j1987: aye true
11:37 PM jymmmm: perry_j1987: It's just a pet peeve that BOB's can't include a 5V supply
11:37 PM perry_j1987: i could throw a little 24 to 5v converter in the case i guess
11:38 PM perry_j1987: ya that is quite ridiculous
11:38 PM jymmmm: perry_j1987: look at the links I sent you smaller than a dime, watch the video
11:38 PM jymmmm: perry_j1987: https://www.youtube.com/watch?v=wFO23F-sVOY
11:39 PM perry_j1987: how many months would that take to arrive from aliexpress now of days though
11:40 PM XXCoder: 0.28 month
11:40 PM XXCoder: pretty dang speedy lately
11:41 PM perry_j1987: i havnt gotten any packages since pandemic started
11:41 PM jymmmm: perry_j1987: https://www.amazon.com/DAOKI-Mini360-Voltage-Converter-Module/dp/B07X96SL55/
11:44 PM perry_j1987: ty
11:49 PM roycroft: i've received parcels from the uk since the pandemic started, but not from asia
11:49 PM roycroft: i had an order that was actually shipped from japan in early march, but the day it arrived at the dock japan put restrcitions on foreign shipments and sent it back to the shipper
11:50 PM roycroft: i don't order much from overseas anyway
11:50 PM roycroft: i prefer to purchase as locally as possible
11:50 PM roycroft: and us-made when possible
11:50 PM roycroft: so my purchasing habits have not changed much