#linuxcnc Logs
Apr 30 2021
#linuxcnc Calendar
12:00 AM XXCoder: you hear of squared diamond circle?
12:07 AM XXCoder: its great way to test 3 different ways it can get out of shape by machine
12:07 AM Bleep-CNC: I've cranked the stepper drivers back up to full current and tomorrow I'm going to try the old trick of spraypainting some Lexan black on one side and engraving a backlit panel with status LEDs [Step/Dir/Limits/Etc] for the control cabinet.
12:09 AM Bleep-CNC: XXCoder: I'm using the box from a Honeywell Fire Alarm panel and its got a 4"x6" window in the face for status readouts. https://www.firelite.com/CatalogImages/ms-9200udls.jpg
12:09 AM XXCoder: yeah i recall that
12:11 AM Bleep-CNC: Now I need to figure out a monitor/panel arm and find some aluminum plate to make a control head.
12:12 AM * Bleep-CNC has been drooling and scheming ever since he saw a picture of the head for a Hurco Ultimax the other day. https://i.ebayimg.com/images/g/f8gAAOSwCTddQKD6/s-l1600.jpg
12:12 AM XXCoder: lol pretty old hurco desigbn
12:13 AM Bleep-CNC: Yeah, but updated to LCD that think would look like a Thinkpad on a stick. LOL
12:13 AM XXCoder: lol
12:15 AM Bleep-CNC: Or a cyborg version of DeadMau5. LMAO
12:18 AM pink_vampire: pcw_home: how do I use it?
12:23 AM Bleep-CNC: pink_vampire: I don't even know what that is yet.
12:24 AM pink_vampire: Bleep-CNC: I want to run the machine in reverse
12:25 AM * Bleep-CNC is designing a jointed arm to allow the control head to mount to the middle of the right side of the table and reach the left front corner for tool changes and tiny shit.
12:27 AM pink_vampire: so arm for your ATC?
12:27 AM Bleep-CNC: pink_vampire: Just did a quick search. "You need to compile a special branch for reverse run." https://forum.linuxcnc.org/38-general-linuxcnc-questions/36672-reverse-run
12:29 AM Bleep-CNC: pink_vampire: I want to float the control head like this. https://static.spacecrafted.com/cf2802ec0ae24e43a9fccf504751b847/i/b0805a917a114f628222a91557f6ece8/1/4SoifmQp45JMgBnHqbdyn/btm-60.png
12:30 AM pink_vampire: I have wireless keyboard
12:31 AM Bleep-CNC: Right now the monitor for this is sitting on an old hospital 'crash cart' and I've got the fonts cranked is size so I can read this at 1.5m. I'd rather pull the sceen to me and keep the fonts smaller.
12:32 AM Bleep-CNC: And I'm standing at the right front corner of the table to be at 1.5m. If I move to the left corner it's almost 3m.
12:33 AM XXCoder: large machine?
12:34 AM Bleep-CNC: Plus then it'll give me a support for the vacuum hose instead of having it dangling from the ceiling and a place to add the coolant and air lines for cutting steel.
12:35 AM Bleepshop: XXCoder: The wreck
12:35 AM XXCoder: oh yes
12:35 AM Bleepshop: I bought. https://imgur.com/a/6qgeGqY
12:36 AM XXCoder: i remember yeah
12:36 AM Bleepshop: First run with the table powered. https://www.youtube.com/watch?v=A88SfpItVgA
12:37 AM XXCoder: nice. barely could watch video tho lol shakycam makes me violently sick fast
12:37 AM Bleep-CNC: You can see the crash cart sitting behind the monitor there. I need to get teh ar together so I can move the cart back where it belongs an open that walkway back up.
12:39 AM Bleep-CNC: XXCoder: Well... In my defense I was climbing halfway up a bale of surplus parachute to get to where I could get it in frame at the time. LOL
12:39 AM XXCoder: lol
12:39 AM Bleep-CNC: Anybody need a green 50' circus tent ?
12:39 AM XXCoder: sounds fun
12:40 AM Bleep-CNC: 64' G12-D cargo chute. It's a pain in my ass because it's in the way.
12:40 AM XXCoder: why do you have those?
12:40 AM pink_vampire: Bleepshop: soo much rust on the rails!
12:40 AM Bleep-CNC: It's the size of a 55gal drum and heavy AF.
12:41 AM pink_vampire: the restoration that you did just amazing!
12:42 AM Bleep-CNC: pink_vampire: It was in a hangar at the airport doing instrument panels for light planes, Roof blew off in a storm, Rocket Surgeons and Brain Scientists decided to power it without checking for water or maybe it was running at the time. Noot sure.
12:43 AM XXCoder: their loss your gain
12:44 AM Bleep-CNC: I've replaced every bit of electronics except for the 3 - $400/ea steppers to drive the gantry and some of the cabling.
12:44 AM XXCoder: not surpised as that is less sensive
12:44 AM XXCoder: you dried em by ispy or something?
12:45 AM Bleep-CNC: So far it's cost me 1 stepper, 4 drivers, 2 power supplies, a few microswitches and a couple of fights with the old lady. LOL
12:46 AM Bleep-CNC: XXCoder: No, It sat under a tarp for a year or more before I got to it.
12:46 AM XXCoder: so steppers avoided rust long enough dang
12:47 AM Bleep-CNC: The Nema 23 on the Z was toasted so I replaced it and the X/Y1/Y2 were fine.
12:49 AM XXCoder: probably because top hole
12:50 AM Bleep-CNC: No, I mean like smoked toasted. Burns in the coils when i tore it down.
12:50 AM XXCoder: yeah water'd have much easier time going in stepper because hole is at top :)
12:51 AM XXCoder: unless covered by encoder i guess
12:51 AM Bleep-CNC: They obviously had an issue with it popping the drivers or something as there were several pullouts sitting in the original panel.
12:52 AM XXCoder: too bad really lol your gain still tho lol
12:53 AM Bleep-CNC: That's one thing I want to add to this soon is encoders for all 3 axises since it'll be freaking easy to add an encoder wheel to the pulleys on the X/Y steppers.
12:54 AM Bleep-CNC: There's a 4:1 belt drives with oversized covers so it's 800 steps/rev without microstepping.
12:58 AM Bleep-CNC: XXCoder: Here's the current version of what I have. I called them for info, spent 10-15 minutes chasing a serial number and the guy finally addmitted "Damn, that one is OLD. Pre serial numbers.". https://computerizedcutters.com/our-products/accu-cut-xp
12:58 AM XXCoder: so site picture is current version?
12:59 AM Bleep-CNC: yeah, 4x4 instead of 4x4 like I have but they're all built the same.
12:59 AM XXCoder: lol ok
12:59 AM Bleep-CNC: Duh. $x8 instead of 4x4
01:01 AM Bleep-CNC: Hmm.. Time to go fall over. There seems to be a disonnect between my brain and the keyboard and It's getting worse.
01:01 AM XXCoder: lol later
01:16 AM Deejay: moin
01:38 AM CaptHindsight: early resters hrmph
03:47 AM mrec_: hmm are the disable pins of the stepper controllers supported somehow?
03:48 AM mrec_: I'm running a stepper at full step, I do not need hold torque
03:57 AM mydani: Hi guys.
03:58 AM CaptHindsight: mrec_: yes
03:58 AM CaptHindsight: mrec_: how are you controlling the steppers? LPT --> BOB --> stepper driver?
03:59 AM mydani: Just joined to see whether someone would guide me little, trying to follow up the behaviour in emctask/interp when programStartLine>0.
03:59 AM CaptHindsight: mydani: howdy do
03:59 AM mydani: =D
04:01 AM Tom_L: morning
04:02 AM CaptHindsight: the early morning shift has arrived, time for me to clock out
04:02 AM Tom_L: long as you put all your fires out
04:43 AM mrec_: CaptHindsight: lpt
04:43 AM mrec_: lpt -> stepper driver
05:58 AM -!- #linuxcnc mode set to +v by ChanServ
06:03 AM JT-Cave: morning
12:48 PM JT-Shop: I guess my weekend starts now... forgot to press the order button at McMaster so parts won't be here till Monday now
12:58 PM Tom_L: nice day for a ride
01:15 PM JT-Shop: ups just delivered the new battery for the BlueWing!
01:44 PM veegee: I hate that some of my oils like air compressor oil don't state ISO viscosity
01:44 PM veegee: Any easy way to tell what the viscosity of fresh oil is?
01:44 PM veegee: Perhaps some kind of pour test comparing with oils of known viscosities?
01:55 PM CaptHindsight: veegee: check ebay for a used viscometer <$200
01:56 PM veegee: CaptHindsight thanks, will do
01:57 PM CaptHindsight: https://www.ebay.com/itm/124702054972
01:59 PM CaptHindsight: veegee: you'll need ~250mL minimum of oil to test
01:59 PM veegee: Ain't no thang, I have 4L
01:59 PM CaptHindsight: and you'll need to know the temp of the oil
02:00 PM CaptHindsight: there are different spindles used for different ranges of viscosity
02:00 PM veegee: ain't no thang, I have precision thermometers
02:01 PM CaptHindsight: the spindleswill be bigger to provide more drag for lower viscosity liquids
02:01 PM CaptHindsight: smaller for thicker/higher
02:02 PM CaptHindsight: https://www.ebay.com/itm/184285479931 never used the ChinaCo versions
02:06 PM Rab: Looks like the foam in that case might be rotten.
02:08 PM CaptHindsight: the BROOKFIELD RVF-100 looks and feels like something right out of a 1950's B sci-fi
02:09 PM Rab: Synchro-Lectric!
02:10 PM CaptHindsight: https://i.ebayimg.com/images/g/rhQAAOSwq05ggsuD/s-l1600.jpg
02:10 PM Rab: It's a beautiful piece of industrial design, though. Bakelite, the wonder material.
02:11 PM -!- #linuxcnc mode set to +v by ChanServ
02:12 PM Rab: Must be some kind of coupling inside that spins the dial if there's a torque differential between the motor and the wand.
02:18 PM CaptHindsight: a spring
02:19 PM CaptHindsight: https://wiki.anton-paar.com/en/how-to-measure-viscosity/
04:02 PM -!- #linuxcnc mode set to +v by ChanServ
04:35 PM -!- #linuxcnc mode set to +v by ChanServ
05:15 PM CaptHindsight: https://github.com/Deotti-cl/linuxcnc-esp32 linuxcnc stepgen over ethernet to esp32
05:16 PM XXCoder: capt theres new esp32 dev board now
05:17 PM XXCoder: https://hackaday.com/2021/04/30/looks-like-a-pi-zero-is-actually-an-esp32-development-board/
05:29 PM CaptHindsight: I'm usually against violence but the writer of that article should be slapped for shoddy writing
05:30 PM CaptHindsight: maybe with one of those foam hands filled with liquid cheese or similar
05:30 PM XXCoder: probably but interesting though
05:30 PM XXCoder: if i had any skills id grab one
05:39 PM andypugh: There is a fair bit of shoddy writing on HaD, but I read it anyway.
05:40 PM andypugh: One of the writers is an old friend of mine (Jenny)
05:42 PM CaptHindsight: andypugh: three new stegen projects for ARM, orangeCNC, Remora and now LCNC-esp32
05:43 PM CaptHindsight: lcnc-esp32 should work with PC's as well since it's over Ethernet to a microcontroller
05:43 PM andypugh: I wish them luck, and hope that they don’t expect me to find hardware ant time to test.
05:43 PM CaptHindsight: others are testing
05:44 PM CaptHindsight: this should pacify the PC haters for a while
05:45 PM XXCoder: i just hope those have great latency
05:45 PM XXCoder: my linuxcnc pc is getting old
05:46 PM CaptHindsight: XXCoder: they iuse a servo thread so latency is far less and issue
05:47 PM CaptHindsight: iuse/use
05:47 PM XXCoder: interesting
05:47 PM CaptHindsight: and/an
05:47 PM CaptHindsight: typo king today
05:47 PM XXCoder: still applies if machine uses steppers?
05:47 PM XXCoder: (with stepper drivers)
05:47 PM CaptHindsight: working on encoder support as well
05:49 PM XXCoder: nice
06:03 PM CaptHindsight: buzzmarshall: another interesting ARM board due out soon https://wiki.pine64.org/wiki/Quartz64
06:03 PM CaptHindsight: up to 8GB DDR4
06:04 PM CaptHindsight: and the SOC has an integrated MCU, for possible stepgen
06:06 PM Tom_L: problem is none of them will become the defacto standard for lcnc
06:08 PM XXCoder: one thing is zero pictures. bah
06:08 PM Tom_L: nothing to take pictures of?
06:09 PM XXCoder: or render?
06:14 PM CaptHindsight: pics http://linuxgizmos.com/pine64-unveils-rk3566-powered-sbc-and-reveals-an-upcoming-risc-v-board/
06:15 PM XXCoder: interesting
06:15 PM XXCoder: what kind of slot is that? pci-e?
06:15 PM XXCoder: looks too small for that
06:16 PM XXCoder: PCIe 2.1
06:43 PM buzzmarshall: thanx... but i already have the quartz info... i don't mind Rockchips boards.... i am still waiting on my bud to send me that damn H64 board
06:47 PM XXCoder: its getting to point where you can have tiny board in 3d printed case in back of montior and wireless keyboard and mouse
06:47 PM XXCoder: and you got good office or browser pc
06:47 PM XXCoder: you already can with rpi4, but some latency on videos
07:12 PM veegee: Wow wtf brass round stock is 2x the cost of 316 stainless
07:12 PM XXCoder: copper prices thats why
07:13 PM veegee: Are you sure? equivalent copper round bar stock is a tad cheaper
07:13 PM veegee: bronze is the most expensive
07:13 PM XXCoder: HMM i last read copper prices was getting expensive
07:13 PM XXCoder: ah demend? like why wood prices is nuts now
07:13 PM veegee: I was going to buy 2.5" brass round bar to machine my own pipe fittings
07:14 PM veegee: prices of larger fittings are obscenely priced
07:14 PM veegee: then just for fun, I added an equivalent size of 316 stainless and it was 1/2 the price of the brass
07:14 PM veegee: so for pipe fittings and such, that should be an even better material except for the fact that it's hard to machine
07:15 PM veegee: THey also have 303 and 304 stainless which is an option
07:15 PM XXCoder: is stainless cheaper than brass?
07:15 PM veegee: But since the price of stainless is about half the price of brass, I don't mind just buying already made stainless fittings, but I can't find them at local home dpot
07:15 PM veegee: yeah stainless bar stock is 1/2 the price of brass
07:16 PM veegee: this is based on metalsupermarkets.com
07:16 PM veegee: their site is super shitty and super slow
07:16 PM veegee: Heavy discount for 96" length as opposed to 48" length. I have to write a bot to index all of their prices at all lengths for all products so I have a quick reference
07:16 PM veegee: because browsing their site is painful
07:16 PM XXCoder: nice
07:17 PM veegee: SO where the hell are all the stainless pipe fittings? I can find galvanized, but they flake off and still rust
07:17 PM veegee: And I hate how pipe wrenches scratch off the zinc layer
07:17 PM XXCoder: good question. cost of machining ir?
07:20 PM veegee: See that price is reasonable: https://www.globalindustrial.ca/p/iso-ss-316-cast-hex-bushing-1-x-34-npt-male-x-female
07:21 PM veegee: If I can buy a single one
07:21 PM XXCoder: 335 lol very not reasonable for me
07:21 PM XXCoder: oh package of 50
07:21 PM veegee: https://www.homedepot.ca/product/sioux-chief-hex-bushing-1-inch-male-fitting-x-3-4-inch-female-fitting-barstock-no-lead-1-bg/1001002029
07:22 PM veegee: But the homedepot price is $6.72 for a brass one
07:22 PM veegee: that's a very fair price for a 1" to 3/4" bushing
07:24 PM veegee: I also just like all copper alloys, especially brass. They're strong, easy to machine, corrosion-resistant, don't cold weld to each other or seize up easily, and seal really well
07:43 PM XXCoder: vee i do want to try brass with my micro lathe lol doubt its string enough
07:47 PM Eric__: brass is really annoying to turn
07:48 PM Eric__: but I think a micro mini lathe could turn it
07:56 PM -!- #linuxcnc mode set to +v by ChanServ
07:57 PM -!- #linuxcnc mode set to +v by ChanServ
08:06 PM roycroft: i have a lot of brass turning to do soon
08:07 PM roycroft: it's not that bad, if you get your tool geometry correct and use the proper feeds/speeds
08:07 PM roycroft: my main problem with brass is that it's s darn expensive
08:17 PM XXCoder: https://twitter.com/ArtValley818_/status/1388180283350929408 whoa!
08:20 PM Rab: Haha, savage
08:21 PM Rab: He forgot to throw his Zippo after them.
08:21 PM andypugh: Why is brass annoying to turn?
08:24 PM Rab: Because the swarf stabs your fingers!
08:29 PM Tom_L: keep your fingers out of the way
08:29 PM Tom_L: i like working with brass
08:30 PM Tom_L: just don't do alot of it
08:34 PM Tom_L: it does grab a bit but not like copper
08:51 PM veegee: https://www.motorious.com/content/images/size/w1000/2020/05/1971-olds.jpeg
08:51 PM veegee: I want this car so bad
08:52 PM veegee: modern cars are so god damn ugly
08:53 PM Tom_L: gas guzzlers but all those old muscle cars had appeal
08:56 PM veegee: That's an easy fix, just put a modern engine in it
08:57 PM Tom_L: you could roll back another 10 years and i'd be just fine too
08:57 PM veegee: https://www.greencarcongress.com/2020/12/20201218-achates.html when can I get this engine?
08:58 PM veegee: Or a small, portable gas turbine
09:01 PM XXCoder: electric motors with small turbine as power generator
09:02 PM Tom_L: i'm certainly not sold on the upcoming looks of electric
09:03 PM XXCoder: i want to have vw setup like what i menioned above
09:03 PM XXCoder: turbine in rear, wheels is electric motors.
09:03 PM * JavaBean wants an old skool VW bug
09:07 PM veegee: I just want a high efficiency internal combustion engine
09:07 PM roycroft: electric cars have much better acceleration than most other cars
09:08 PM roycroft: and they're cheaper to operate, and much much more reliable than internal combustion engine based cars
09:08 PM XXCoder: i just want EV with in least 150 mile range, and are NOT telsa
09:08 PM roycroft: there are at least a dozen choices right now in this country for that, xxcoder
09:08 PM roycroft: you're going to spend about $40,000 for an ev with a decent range
09:08 PM XXCoder: yeah i dont want to replace my car yet
09:08 PM roycroft: but it will pay for itself in fuel savings in a matter of a few years
09:08 PM XXCoder: indeed
09:08 PM roycroft: especially in our part of the country
09:09 PM XXCoder: yeah wa state nuts on gas prices
09:09 PM XXCoder: still cheap compared to rest of usa!
09:09 PM roycroft: and we have cheap electricity
09:09 PM roycroft: thanks to bpa
09:09 PM veegee: https://www.youtube.com/watch?v=Al8elCF816g
09:09 PM roycroft: and all the other renewable energy sources we have
09:09 PM veegee: Nice little gas turbine
09:12 PM Tom_L: what's gas price in wa right now?
09:12 PM veegee: gas prices in Toronto are miserable
09:12 PM veegee: $1.30/L'
09:12 PM roycroft: it's $3.30/gallon for regular in eugene right now
09:12 PM Tom_L: i don't wanna go on a trip in electric and have to sit for hours on a "fillup"
09:13 PM veegee: Tom_L I bought my mom a Tesla
09:13 PM roycroft: i can't see any rational reason for not wanting an ev right now, other than the lack of recharging stations
09:13 PM veegee: I recently took it for a long trip and exhausted the battery
09:13 PM roycroft: and the infrastructure bill will take care of that
09:13 PM veegee: the superchargers make it totally manageable
09:13 PM roycroft: i understand the nostalga reason, and it is a valid reason, but it's not rational
09:13 PM veegee: but fuck Tesla and Musk
09:14 PM XXCoder: yeah i hope that bill passes!!
09:14 PM XXCoder: and yes fuck musk
09:14 PM veegee: I only bought it for my mom to make her life easier
09:14 PM veegee: I would never buy one for myself
09:14 PM veegee: I need a dually pickup truck right now more than anything. The new Ford 6.7L powerstroke looks good
09:14 PM Tom_L: roycroft, my reasoning it being out in the middle of nowhere with a dead battery
09:15 PM Tom_L: and having to wait hours to charge one
09:15 PM veegee: plug in hybrid is the way to go
09:15 PM veegee: electric drivetrain with an internal combustion generator
09:15 PM Tom_L: veegee, my bud always got powerstrokes for his shop
09:15 PM veegee: my friend gave me a truck with a crane, it has a 7.3L powerstroke. I'm going to modify it to get some more power out of it
09:16 PM veegee: Well not really "give", more like use for as long as I want for whatever reason and keep it with me
09:16 PM veegee: so I can't take the crane off the flatbed
09:17 PM roycroft: tom_l: your home charger will take overnight to recharge
09:17 PM veegee: ... no it won't
09:18 PM roycroft: because it's 50A@240v
09:18 PM roycroft: the high current chargers at the charging stations will be able to do it in 20 minutes
09:18 PM veegee: no, they don't exceed 1.5C charge
09:18 PM roycroft: if you have a 35 mile range, you can take a 20 minute break every six hours
09:18 PM roycroft: er
09:18 PM roycroft: 350
09:18 PM roycroft: they can, veegee
09:18 PM veegee: and that's generally bad for the batteries
09:18 PM veegee: THey can
09:18 PM veegee: But they won't
09:18 PM roycroft: they don't at the moment
09:18 PM roycroft: they shall
09:19 PM Tom_L: that would practically double the trip time on a decent trip
09:19 PM Tom_L: no thanks
09:19 PM roycroft: and we shall have batteries that would be happy with that
09:19 PM veegee: But lithium titanate can handle the current
09:19 PM roycroft: what i don't get is why our president isn't doing this like eisenhower did
09:19 PM veegee: Lithium iron phosphate is my all time favourite chemistry
09:19 PM roycroft: eisenhower built the interstate highway system with taxpayer money as a national defense project
09:19 PM Tom_L: and what polution will these batteries product on the side of the road after they're tossed
09:19 PM Tom_L: produce*
09:20 PM roycroft: building a national ev charging grid could be done with the same justification
09:20 PM roycroft: the president could increase defense spending to do it
09:20 PM roycroft: that should make everybody happy
09:20 PM veegee: lithium ion cells can be recycled
09:20 PM veegee: they're highly recyclable
09:20 PM veegee: same with lead acid, like 99% recyclable
09:20 PM * JavaBean noms some popcorn
09:21 PM veegee: In fact, I'm recycling mine right now :D
09:21 PM Tom_L: i just think they're moving the polution to the power grid which is already overworked
09:21 PM JavaBean: shhh
09:21 PM roycroft: i am on 100% renewable electricity
09:21 PM veegee: Time to get serious about nuclear
09:21 PM Tom_L: and as we saw in Tx windmills don't work in the cold
09:21 PM roycroft: excuse me
09:22 PM roycroft: that's not true at all
09:22 PM roycroft: what is true is that TEXAS does not work in the cold
09:22 PM veegee: ^
09:22 PM Tom_L: :)
09:22 PM veegee: especially the republican/religious types
09:22 PM roycroft: it was a lot more than windmills that broke
09:22 PM veegee: but nuclear
09:22 PM Tom_L: but the windmills didn't perform
09:22 PM veegee: we need lots of nuclear
09:22 PM roycroft: i'm talking about cold weather, veegee, not cold hearts
09:22 PM roycroft: that's a different discussion, that is best had elsewhere
09:23 PM veegee: nuclear is fine if done right
09:24 PM roycroft: in the news today, which is really big news in my part of the country, some wwii era storage tanks at the hanford nuclear site in central washington are leaking radioactive waste into the ground, and could reach the columbia river
09:24 PM roycroft: nuclear is not done right
09:24 PM roycroft: it's done cheap
09:24 PM Tom_L: tap into active volcanos
09:24 PM veegee: money is the issue
09:24 PM roycroft: i'm not opposed to nuclear power per se
09:24 PM roycroft: but nobody does it safely
09:24 PM veegee: Canada does
09:26 PM veegee: ORRRR hear me out here
09:26 PM veegee: we farm humans
09:26 PM veegee: feed them organic matter and extract their ATP
09:26 PM veegee: ATP is a great energy transporter
09:26 PM roycroft: gasonline is made from people!
09:29 PM Tom_L: covid fuel
09:29 PM Tom_L: was it really an accident?
09:29 PM Tom_L: :)
09:29 PM XXCoder: Tom_L: windmills have heating system. texas cheapened out and didnt install em
09:30 PM XXCoder: windmill has its own power to heat itself to keep working
09:30 PM Tom_L: yeah we got em scattered all over the place here now
09:30 PM roycroft: not only that, but the power utilities in texas were ordered to add those heaters
09:30 PM roycroft: and they did not do so
09:30 PM XXCoder: jeez
09:31 PM roycroft: but conventional power plants and oil pipelines also froze up
09:31 PM roycroft: because the owners/operators were too cheap to keep them functional in cold weather
09:31 PM veegee: I thought windmills cause cancer
09:31 PM roycroft: not any more
09:32 PM roycroft: those days are over, thank goodness
09:33 PM Tom_L: far as we know
09:33 PM XXCoder: i wanted to add small windmill to here, but hear its noisy. aw.
09:34 PM Tom_L: shove a blade on a stepper motor
09:35 PM roycroft: so i decided to change pizza night this week to saturday, because friday night has been pizza night for over a year
09:35 PM roycroft: and i don't like getting into ruts like that
09:35 PM Tom_L: heh
09:35 PM roycroft: i decided to grill tonight, and since almost all produce has come early this year, i decided to get some corn on the cob
09:36 PM roycroft: which i usually don't buy until june, because it's so starchy before then
09:36 PM roycroft: it was sweet and delicious
09:36 PM Tom_L: they grow corn in your neck of the woods?
09:36 PM roycroft: well yes, but our local corn will not be ready until late july
09:36 PM Tom_L: the best corn i've ever had was iowa corn
09:36 PM roycroft: this is from mexico or southern california
09:37 PM roycroft: we don't grow field corn here
09:37 PM roycroft: but we do grow sweet corn
09:37 PM Tom_L: it's an alternate? crop here
09:37 PM roycroft: the best corn is in your own garden
09:37 PM Tom_L: mostly wheat
09:38 PM Tom_L: lately (last several years) they've been growing cotton as a 2nd crop
09:38 PM roycroft: really? wheat is usually a more northern crop
09:38 PM -!- #linuxcnc mode set to +v by ChanServ
09:38 PM Tom_L: we are the breadbasket of the world
09:38 PM roycroft: the corn belt is south of the wheat belt
09:38 PM roycroft: but it's all shifting north
09:38 PM roycroft: before long, saskatchewan will be in the papaya belt
09:39 PM roycroft: unless we outlaw cow farts
09:39 PM Tom_L: wheat, corn, barley, alfalfa, cotton, sunflowers (fail), sesame seeds... a few others
09:39 PM roycroft: and stringently enforce the ban on them
09:39 PM Tom_L: sunflowers didn't last long here
09:39 PM -!- #linuxcnc mode set to +v by ChanServ
09:39 PM roycroft: sunflowers are big in north dakota
09:40 PM roycroft: the summer days are longer there
09:40 PM Tom_L: they didn't go over well here for whatever reason
09:40 PM Tom_L: and we're the sunflower state
09:40 PM Tom_L: :)
09:40 PM roycroft: my ex gf's grandparents have a large farm in north dakota
09:40 PM roycroft: sunflowers are one of their main crops
09:41 PM roycroft: they get seed heads that are a meter in diameter
09:41 PM Tom_L: soy beans.. forgot that one
09:41 PM roycroft: her grandparents also grow soy beans, pinto beans, lima beans, black beans
09:41 PM roycroft: no grains, though
09:41 PM roycroft: just oil crops and beans
09:42 PM roycroft: they're north of grand forks - pretty close to the canadian border
09:43 PM roycroft: is your lathe similar to mine, tom_l, or are just unlucky enough to have the same spindle thread as me?
09:43 PM Tom_L: i think we could secede and do just fine here
09:43 PM roycroft: mine is a jet 1236py
09:43 PM Tom_L: mine is small
09:43 PM Tom_L: old sears atlas (the small one)
09:43 PM roycroft: oh
09:43 PM roycroft: never mind then
09:44 PM roycroft: i have a problem with mine and i haven't had any time to diagnose it, but it baffles me
09:44 PM Tom_L: i dunno what thread it is but i'd bet not metric
09:44 PM roycroft: i thought you said yours was m60x8tpi
09:44 PM Tom_L: nope
09:44 PM roycroft: that's why i asked
09:45 PM roycroft: ok, then i'm confused, but this is not the first time for that
09:45 PM Tom_L: my mill was 3/4 16
09:45 PM Tom_L: and i dunno what the lathe is
09:45 PM Tom_L: and i did a custom thread for 1.5 x 24? or something like that
09:45 PM roycroft: i found out that jet eventually changed the spindle nose to 2-1/4"-8tpi
09:45 PM roycroft: for the same lathe
09:46 PM Tom_L: smart move
09:46 PM roycroft: which is both more sane generally, and is also the same spindle thread as south bend used back then
09:46 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Brass_cup/Brass_Cups2.jpg
09:46 PM Tom_L: i did that just as a thread test
09:46 PM Tom_L: some odd size purposely
09:47 PM roycroft: that turned out nice
09:47 PM Tom_L: like 1.6 or something
09:47 PM roycroft: but as i was saying earlier, brass can machine nicely if you have the right tool geometry, and the correct feeds/speeds
09:48 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/extinguisher_nut/Pressure_test_cap1.jpg
09:48 PM Tom_L: then i did that one for a bud in Canada
09:48 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/extinguisher_nut/Pressure_test_cap3.jpg
09:49 PM roycroft: also use a free machining alloy, like c314 or c693
09:50 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Jacobs_chuck/Chuck_adapter4.jpg
09:50 PM Tom_L: that one fits the mill spindle
09:51 PM Tom_L: so i can 'quick' change drills
09:52 PM roycroft: i'm coming to the realization that i may need to spend a fair amount of time tuning up my lathe before i can accurately turn my chuck adapter plate
09:53 PM roycroft: and i don't have the time for that right now
09:53 PM Tom_L: did you get the cast chunk cut?
09:53 PM roycroft: no
09:53 PM -!- #linuxcnc mode set to +v by ChanServ
09:53 PM roycroft: i also burned up a bunch of money because i don't have a back splash for my lathe
09:54 PM roycroft: i spewed chips all over my workbench (again), but this time i had a dozen sheets of abrasives for my sanders on the bench
09:54 PM roycroft: they were almost unused, but when the chips got on them they were ruined
09:55 PM Tom_L: there's a lathe plane you don't stand in unless you want an oil bath
09:55 PM roycroft: so i think the 4 jaw project has to go on hold for now, and i need to so some general maintenance to the lathe and build a back splash for it before i get back to that
09:55 PM roycroft: or a chip bath
09:55 PM roycroft: i don't use lubricant on cast iron
09:55 PM roycroft: it's not necessary
09:55 PM Tom_L: i might just for the dust
09:56 PM roycroft: that actually might be a good idea
09:56 PM roycroft: the lathe area is a huge mess right now
09:56 PM -!- #linuxcnc mode set to +v by ChanServ
09:56 PM Tom_L: i've not cleaned behind mine in years
09:57 PM roycroft: i'm thinking of taking the 4 jaw off tomorrow, storing it, and cleaning that area up really well
09:58 PM roycroft: i'm still working on my gazebos, and i'm making some jigs for my table saw, and just got a new dro for my drill press
09:58 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Craftsman_lathe/spindle5.jpg
09:58 PM Tom_L: i did clean the spindle here a while back
09:58 PM Tom_L: fixed a couple things
09:59 PM roycroft: i have a lot of things going on, and can't afford for the 4-jaw project to take a bunch of extra time right now
09:59 PM roycroft: i really really need to get working on the cnc conversion on my mill
10:00 PM roycroft: i can't afford to outsource some cnc work that i am going to really need this summer
10:00 PM Tom_L: for what?
10:00 PM roycroft: especially since it will be somewhat experimental, and will likely reauire multiple iterations before i have what i need
10:00 PM roycroft: i need to make some steam bending fixtures for thin wood strips
10:01 PM Tom_L: yeah you mentioned those
10:01 PM roycroft: so i'll need to machine some roughly sinusoidal curves in 1/2" thick aluminium
10:01 PM roycroft: yes, i was discussing them a couple months or so ago
10:02 PM roycroft: and the best i've come up with regarding springback is that it will vary amongst species and how the wood was dried initially, and i'll have to experiment to get what i need
10:03 PM Tom_L: i only send essential things to my Canadian friend since shipping is a killer
10:03 PM roycroft: i've also have several folks tell me (outwith this channel) that i should just build a cnc router and route them out of solid wood, instead of steam bending strips
10:03 PM roycroft: but that's awfully wasteful of materials
10:04 PM roycroft: and it not at all the same
10:04 PM roycroft: they would look and behave totally differently if routed out of solid stock vs. steam bent
10:04 PM Tom_L: yup
10:04 PM roycroft: and not better different
10:04 PM roycroft: much worse different
10:04 PM Tom_L: why not make wood forms?
10:05 PM Tom_L: why do they have to be metal?
10:05 PM roycroft: they won't hold up over time
10:05 PM Tom_L: they would hold up long enough for you to find the final shape
10:05 PM XXCoder: isnt there using sand inside to bend without deforming
10:05 PM roycroft: but even if i made them out of wood, i'd need a cnc router to do it quickly
10:05 PM XXCoder: or in some cases, low temp metal
10:05 PM roycroft: that's in metal tubing, xxcoder
10:05 PM roycroft: i'm talking about wooden strips
10:05 PM XXCoder: ahh yea
10:05 PM Tom_L: XXCoder, i use water to bend copper tubing
10:06 PM XXCoder: wonder if same piciple can apply
10:06 PM roycroft: i could prototype with wood
10:06 PM Tom_L: be alot cheaper
10:06 PM roycroft: yeah
10:06 PM roycroft: but i still need a cnc machine to do it decently
10:06 PM roycroft: i might as well cnc convert the mill and use that for the prototypes
10:06 PM Tom_L: aww you can freehand a router :)
10:07 PM roycroft: um, yeah, ok
10:07 PM roycroft: if it were true sine waves i could make a jig to make the jigs
10:07 PM roycroft: but look
10:07 PM Tom_L: XXCoder, remember the cooler i had on the sherline motor?
10:07 PM roycroft: i've been wanting to do this cnc conversion for 10 years now
10:07 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/spindle_cooler/Cooler1.jpg
10:08 PM roycroft: and i have almost everything i need to do it
10:08 PM Tom_L: that was full of water with the ends pinched off
10:08 PM XXCoder: yeah been a while LOL
10:08 PM roycroft: so the last thing i need are excuses to not do it :)
10:08 PM XXCoder: yeah it looks still round rod which is good
10:08 PM Tom_L: roycroft, what about a dowel pin board?
10:08 PM Tom_L: get the shape using pins
10:08 PM XXCoder: (round, wrapped around thick rod for shaping)
10:09 PM Tom_L: then all you need is a pencil and a drill
10:09 PM -!- #linuxcnc mode set to +v by ChanServ
10:09 PM Tom_L: and if the shape isn't right, move the pins a bit and redrill the holes
10:09 PM Tom_L: no wasted board
10:10 PM roycroft: if i've not completed the mill project by then i'll figure somthing else out
10:10 PM roycroft: oh, and added to all the other projects, the horizontal mill is a current project again, since i got that taper pin out of the handle finally
10:11 PM roycroft: i'm glad i have a lot of vacation time accrued :)
10:11 PM Tom_L: XXCoder, it compressed a bit because water squirted out the end under pressure a bit
10:11 PM XXCoder: doh but looks well shaped at end
10:11 PM Tom_L: so a couple here that got the shot are paralized now
10:12 PM Tom_L: just as an aside
10:12 PM roycroft: that's sad
10:13 PM Tom_L: women
10:13 PM roycroft: vaccines are not 100% safe
10:13 PM roycroft: the covid-19 vaccines are a lot safer than getting the disease
10:13 PM roycroft: but there will be reactions like that
10:13 PM roycroft: the women were related, i'd guess
10:13 PM Tom_L: not that i know of
10:14 PM XXCoder: second shot wasnt fun for me thats for sure
10:14 PM roycroft: really?
10:14 PM roycroft: the odds of that are almost impossible
10:14 PM XXCoder: 5800 cases of vaccined people breakthough and got sick with covid. out of many millions
10:14 PM XXCoder: so percentage is good enough
10:14 PM roycroft: and zero have died
10:14 PM roycroft: zero
10:15 PM XXCoder: my second shot made me very weak, hurt so much more lol
10:15 PM XXCoder: i barely could walk at all, got feverish
10:15 PM roycroft: i felt fatigued the day after the second dose
10:15 PM roycroft: no fever, no headache
10:15 PM XXCoder: my nephew similiar except he got chills too
10:15 PM roycroft: just very tired
10:15 PM XXCoder: my mom had rash but thats it. my brother got hurt shoulder but thats it
10:15 PM roycroft: my arm was more sore after the second one than after the first one
10:16 PM roycroft: at the injection point
10:16 PM roycroft: but i was fine two days after i got the second dose
10:16 PM XXCoder: me too. well not 100% but well enough
10:16 PM XXCoder: days aftetr that was fine
10:16 PM roycroft: and sunday will mark 2 weeks since i got the second one, so i should be as fully immunized as i shall be by the end of this weekend
10:16 PM XXCoder: im at bit over week now
10:18 PM roycroft: tom_l: to get the geometry right, the pins in a board method might be the fastest and easiest way to do it
10:59 PM Tom_L: drill them on a grid so you can transfer the pattern to cad easier
11:18 PM roycroft: i found a dwg file for a grizzly 12x36 lathe backsplash
11:19 PM roycroft: that is almost identical to mine
11:19 PM roycroft: so it should be a good starting point
11:19 PM roycroft: i think i have some big sheets of corrugated cardboard in storage
11:19 PM roycroft: that would make it easy to mock up the backsplash
11:58 PM * Bleepshop has decided on a basic design for the control head and associated support arm.
11:59 PM XXCoder: YAY CAD time
11:59 PM XXCoder: cardboard assisted designing