#linuxcnc Logs

Dec 10 2021

#linuxcnc Calendar

01:04 AM d2inventory: roycroft: I'm with you on that one, river tables are fucking ugly :D
01:17 AM d2inventory: I was glad I could talk my buddy out of it, he now did one with burnt wood which looks quite nice
01:20 AM d2inventory: by one I mean table not river table :D
01:32 AM Deejay: moin
01:48 AM randy: morning
02:06 AM HY-IGH: Linuxcnc + ethercat can't catch CoE packets, why is this?
03:49 AM HY-IGH: Linuxcnc + ethercat can't catch CoE packets, why is this?
04:28 AM Tom_L: morning
04:31 AM HY-IGH: Linuxcnc + ethercat can't catch CoE packets, why is this?
05:01 AM JT-Cave: morning
05:01 AM JT-Cave: HY-IGH, ask on the forum
05:46 AM pere: wow, Italian is almost complete now on <URL: https://hosted.weblate.org/projects/linuxcnc/#languages >. :)
06:13 AM pjm_ is now known as pjm
06:50 AM Centurion_Dan1 is now known as Centurion_Dan
07:36 AM JT-Cave: Loetmichel, this is what the guy from Germany bought from me https://spyderstore.com/index.php?route=product/product&path=64&product_id=83
07:37 AM Loetmichel: interesting
07:37 AM Loetmichel: for kids?
07:37 AM JT-Cave: so his 7 year old son can ride or short adults
07:37 AM JT-Cave: my wife is pretty short so I designed them for her
07:40 AM Loetmichel: oh, a loving husband. wish i could get my wife to ride on my bike with me... no chance though (she wont ever and the bike would struggle with ~200kg load)
07:49 AM JT-Cave: that's a pretty good load for any motorcycle
07:56 AM Loetmichel: especially for a 50cc bike ;)
07:56 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=15295&g2_imageViewsIndex=1 <- I dont have a drivers license for more
07:59 AM t4nk_freenode: hehe, Loetmichel, I used to have a 'Zündapp
07:59 AM t4nk_freenode: a green one :b
07:59 AM t4nk_freenode: had it for years
08:01 AM t4nk_freenode: it wasn't really the MT5 (orsomething) I hoped for.. but I got it as a birthday present, and drove it out at the exact second I turned 16
08:02 AM t4nk_freenode: @home they wouldn't hear of anything else than Zündapp
08:02 AM Loetmichel: t4nk_freenode: i thoght i am a bit above the age of one of the modern 50cc "plastic scooters" so i bought that "shrunken harley"... fits me better ;)
08:02 AM t4nk_freenode: even Kreidler was frowned upon
08:02 AM t4nk_freenode: let alone puch and tomos
08:03 AM Loetmichel: well... that one is a Piaggio Eaglet
08:04 AM t4nk_freenode: I guess your counryside is a bit more 'hilly' than ours
08:04 AM t4nk_freenode: I used to take rides in Germany though
08:05 AM t4nk_freenode: cross the border at Eindhoven for example
08:05 AM t4nk_freenode: was a nice time]
08:05 AM Loetmichel: yeah, i am smack dab in the middle of germany
08:05 AM Loetmichel: Offenbach am ain
08:05 AM Loetmichel: main
08:05 AM Loetmichel: so its a bit more hilly here
08:06 AM t4nk_freenode: I once got pulled over by the cops in Germany...
08:06 AM Loetmichel: better here than in the US i imagine
08:06 AM t4nk_freenode: 'Hi, .. can you tell me the speed limit?'
08:06 AM Loetmichel: our cops are usually very friendly
08:06 AM t4nk_freenode: euh.. 40km's?
08:06 AM t4nk_freenode: 'this is a sidewalk, Sir'
08:06 AM t4nk_freenode: lol
08:07 AM t4nk_freenode: they let me go, it was greatly amusing
08:07 AM Loetmichel: yeah, thats what i mean
08:09 AM Loetmichel: i once got into a police car convoi with my moped. The VW bus in front of me did a hard brake on a red traffic light and i was a bit close, so i did an inadverted "stoppie" ending less than 2 cm from his rear bumper
08:09 AM Loetmichel: ... officer in the car behind me took the PA mike...
08:09 AM Loetmichel: <- *ah, well, lat for work again then*
08:10 AM Loetmichel: Officer over PA: "Nice stunt, boy. Dont do it again, please!"
08:10 AM t4nk_freenode: hehe
08:10 AM Loetmichel: <- *sweatdrop*
08:13 AM t4nk_freenode: those were better days
08:13 AM Loetmichel: they even "overlooked" the fact that we drove down that hill at 90kph, whereas that bike should only be capable of 50kph ;)
08:14 AM t4nk_freenode: I had two engine blocks, one original, and one messed up
08:14 AM t4nk_freenode: but it never made 90 though
08:14 AM Loetmichel: steep, long hill
08:15 AM t4nk_freenode: yeah, downhill wind in the back
08:15 AM Loetmichel: accelerate to ~60lph, then neutral and let gravity do the rest
08:15 AM t4nk_freenode: lol
08:15 AM Loetmichel: kph
08:15 AM Loetmichel: good thing that bike had disc brakes though
08:15 AM Loetmichel: :)
08:16 AM t4nk_freenode: but the Zündapps were very solid... I remember test-driving an 'MT-5' from a friend, did something like 120kph or so... when I got back I was literally shaking, because it felt like it could fall apart at any minute
08:16 AM t4nk_freenode: flimsy
08:17 AM Loetmichel: waaaaay back i had a "Honda Px50E" mofa... for those small engines an electric turbocharger IS a thing... made it to 90kph on level roads without any changes to the drive train other than putting a blower between carburetor and engine...
08:18 AM Loetmichel: ... for about 500km, then there was an 1" hole in the piston ;)
08:18 AM Loetmichel: probably the mix got a bit lean ;)
08:19 AM t4nk_freenode: had a couple of accidents later on, because my drum brake-pads were worn, and they would bite in. so on a wet road, in a turn.. I'd touch my front brakes and they would bite
08:20 AM t4nk_freenode: broke my arm on one of my last rides
08:21 AM t4nk_freenode: but that is a _long_ time ago
08:21 AM Loetmichel: t4nk_freenode: i bought that one new back then: http://www.cyrom.org/palbum/main.php?g2_itemId=3794&g2_imageViewsIndex=1
08:21 AM Loetmichel: ... first bike/scooter i owned with Brembo disc brakes
08:22 AM Loetmichel: ... took me three days to make my first faceplant at a red light
08:22 AM Loetmichel: MAN those brakes did the job :)
08:22 AM t4nk_freenode: those scooters were so popular back then
08:22 AM Loetmichel: compared to the shitty drum brakes i was used to
08:23 AM Loetmichel: bad thing: the side panels are actually white plastic painted black
08:23 AM Loetmichel: every scratch SCREAMS at you
08:23 AM Loetmichel: ... so i bought the Alu box on the back
08:23 AM Loetmichel: there you dont see the scratches and neither you see them on the brake levers ;)
08:23 AM t4nk_freenode: yeah, heheh... if you fell, your scooter would tell
08:24 AM Loetmichel: well, i drove that thing to work for three years. 42km one way each day
08:24 AM Loetmichel: summer and winter
08:24 AM Loetmichel: you faceplant quite a bit, especially in autim
08:24 AM Loetmichel: -i+u
08:24 AM t4nk_freenode: my Zündapp's head-light was decently filed down from crashing too
08:25 AM Loetmichel: was no fun at -10°C though
08:25 AM t4nk_freenode: lol
08:25 AM Loetmichel: 1 hour on a bike
08:25 AM t4nk_freenode: I can relate to that man
08:25 AM t4nk_freenode: fingers hurt like mad after a crash in the cold
08:26 AM Loetmichel: usually had problems letting go of the handlebar at the "half time stop" at a fuel station with hot coffee and hot sausages in a bun
08:26 AM Loetmichel: to thaw the fingers ;)
08:27 AM JT-Shop: pretty good looking bike for 50cc's
08:28 AM Loetmichel: JT-Shop: yep. Its made to look like a "shrunken" HD.
08:28 AM Loetmichel: only grievance: it has a 6 gear gearbox. you shift ALL the time, especially in city traffic
08:29 AM Loetmichel: wears the shoes down pretty quick
09:18 AM JT-Shop: I have a six speed transmission on my bike and it has 6 cylinders!
09:21 AM Loetmichel: JT-Shop: your bike probably doesent top out at 70kph though
09:21 AM Loetmichel: and has more than 3Hp ;)
09:21 AM Loetmichel: takes a bit of shifting to get it going
09:41 AM JT-Shop: aye it has 1,839cc's
09:41 AM JT-Shop: top speed 140 MPH
09:42 AM Loetmichel: JT-Shop: point was that if you want to drive the allowed 50kph in the city you are in 6th gear.
09:42 AM Loetmichel: and at every red light you have to shift through all 6 again
09:43 AM Loetmichel: to get that thing going
09:47 AM roguish[m]: good morning. was 34.5 F a little while ago. in my 'cold' range...............
09:49 AM roguish[m]: JT-Shop: have you ever wound it out?????
09:49 AM roguish[m]: downhill?
09:49 AM roguish[m]: 140 is pretty high with the pucker factor.
09:50 AM Loetmichel: roguish[m]: i have driven the tuned BMW K100 of a friend.
09:50 AM JT-Shop: I did 130 a few times on flat roads
09:50 AM Loetmichel: a few decades back
09:50 AM Loetmichel: 270phl was the end of my bravery.
09:50 AM Loetmichel: kph
09:50 AM Loetmichel: it still could have gone 20 more
10:01 AM JT-Shop: https://i2.wp.com/www.bike-urious.com/wp-content/uploads/Honda-C110-Super-Sports-Cub-Front-Right.jpg?resize=881%2C642&ssl=1
10:01 AM JT-Shop: that was my first bike, his seat is not stock tho
10:02 AM Loetmichel: JT-Shop: the BMW is a touring bike. it was NOT made for close to 300kph... gets a bit scary
10:07 AM JT-Shop: https://timeless2wheels.com/38252/bmw-k100/
10:07 AM JT-Shop: doesn't look very touring to me :)
10:08 AM * JT-Shop heads out to do some work
10:11 AM Loetmichel: JT-Shop: https://i.ebayimg.com/00/s/MTIwMFgxNjAw/z/OckAAOSwy2BdnhCO/$_57.JPG take that and add a "head high" windshield to it
10:19 AM roguish[m]: only motorcycle i've owned, back in '73 https://i.ebayimg.com/images/g/jrQAAOSw9c1g3xKs/s-l300.jpg
10:20 AM roguish[m]: sheetmetal pressed frame......
10:20 AM Loetmichel: roguish[m]: neat
10:21 AM roguish[m]: it might have done 50 ro 60 off a cliff
10:21 AM roguish[m]: had a heck of a good time. learned how to work on motors..........
10:57 AM t4nk_freenode: roguish[m], is that a Zündapp too?
10:57 AM t4nk_freenode: you are older than me in any case ;)
10:58 AM t4nk_freenode: I'm not sure, but I think mine was made in '74
10:58 AM t4nk_freenode: not sure though.. gt50 I think, three gears by foot
10:59 AM t4nk_freenode: slightly newer than those 3speed hand geared ones
11:00 AM roguish[m]: question for you real machinists........
11:01 AM roguish[m]: which style of vise would you purchase?
11:01 AM * roguish[m] uploaded an image: (230KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/ZPqTbqMSTFFRExOhatyZeXms/vise%201.png >
11:01 AM * roguish[m] uploaded an image: (363KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/kCEbAGmMSJnaEOLNgvztQEqx/vise%202.png >
11:02 AM roguish[m]: top one or bottom one. 4", for my smaller mill.
11:03 AM roguish[m]: and small work
11:03 AM roycroft: i would not call myself a "real machinist"
11:03 AM roycroft: but the second one is the most commonly used as the primary vise
11:04 AM roycroft: vises like the first one are often used to hold parts that will be moved into various positions, where the vise itself is held in another vise
12:31 PM t4nk_freenode: nooooooooooooooooo!! ... I had the perfecrt spring... right in my hands...
12:31 PM t4nk_freenode: now it's gone.
12:31 PM t4nk_freenode: ;)
12:36 PM t4nk_freenode: aaroncnc, that was probably a good tip from you, about the springs
12:37 PM t4nk_freenode: a gas-spring, or whatever you mentioned... that's not gonna work onmy design
12:38 PM t4nk_freenode: briefly thought about putting a second motor on the axis, but it also doesn't really agree with my design
12:38 PM aaroncnc: yea, wont work for all machines. what are you going to do to offset the head weight?
12:38 PM t4nk_freenode: however... some normal springs might just work
12:39 PM t4nk_freenode: but I need to cut them to length and such, test it
12:39 PM t4nk_freenode: I guess anything in the right direction would help
12:39 PM aaroncnc: i have an aversion to normal springs.
12:39 PM t4nk_freenode: I can understand that
12:40 PM aaroncnc: a super crude option could be a string some pulley and lead.
12:41 PM t4nk_freenode: well, you haven't seen my machine yet... it would be nice, but my machine is just too small for that
12:41 PM t4nk_freenode: same goes for the gasspring
12:41 PM t4nk_freenode: I'll snap a picture
12:56 PM t4nk_freenode: aaroncnc, https://postimg.cc/gallery/MvRBCQX I'm not a picture-takerer, hope you can stomach the angle ;)
12:57 PM aaroncnc: t4nk_freenode, looks like you could side mount a gas spring. https://www.mcmaster.com/gas-springs/miniature-gas-springs-with-eyelet-fittings/
12:59 PM aaroncnc: but i think the better solution might just be a bigger motor and or higher voltages.
12:59 PM t4nk_freenode: the normal spring won't work, coming to think of it; fine for downstairs, but they would get in the way at the top
01:00 PM t4nk_freenode: I'm afraid so, bigger motor might be best
01:00 PM aaroncnc: or just gear the motor down.
01:01 PM aaroncnc: timing belt style
01:01 PM t4nk_freenode: it runs 16microsteps out of the box, earlier I switched that down, should also be a bit better
01:01 PM aaroncnc: https://www.amazon.com/ULTECHNOVO-Printer-Synchronous-Reduction-Supplies/dp/B08P7864CL/ref=sr_1_3
01:02 PM aaroncnc: Yea the close you go to full steps the more power you have
01:02 PM t4nk_freenode: I saw some set the other day on amazon, 4 nema23 motors plus powersupply and drivers for a little over 100euros
01:03 PM aaroncnc: another option would be a cheaper c7 grade ballscrew.
01:05 PM aaroncnc: do you lose steps at half step size and slow speeds?
01:05 PM t4nk_freenode: to be honst.. I'm not sure
01:06 PM t4nk_freenode: but I'm about to try some pcb milling, and it starts to become important
01:06 PM aaroncnc: if your not doing a ton of 3d paths and i would drop to half steps and keep the speed low.
01:06 PM JT-Shop: yippie the weekend has started for me
01:06 PM t4nk_freenode: yeah, the leadscrew on the z-axis has 2mm lead, on the x-an-y they are 8mm, so I have a little room too
01:07 PM t4nk_freenode: I think changing the steps, reducing speed and accel might work
01:07 PM t4nk_freenode: what will be left is backlash
01:08 PM t4nk_freenode: I'm absolutely unsure how much I got
01:08 PM t4nk_freenode: eyeballing it I'd say None.. hehe but I'm sure it's way worse
01:08 PM aaroncnc: you could add a second nut with a spring between them for compensation.
01:09 PM t4nk_freenode: I have one anti-backlash nut at the moment
01:09 PM t4nk_freenode: just a standard one with a spring inbetween
01:11 PM unterhausen: turns out that 1" drillbit was actually 1 1/16"
01:11 PM unterhausen: and I don't have a 1" drill bit
01:12 PM aaroncnc: t4nk_freenode, are the rails built out of conduit?
01:12 PM t4nk_freenode: yes
01:12 PM t4nk_freenode: hang on
01:12 PM t4nk_freenode: no,
01:12 PM t4nk_freenode: on the x-and-y they are
01:13 PM t4nk_freenode: but on the z, they are solid... 9mm I believe
01:13 PM aaroncnc: the motor spacers are they 3d printed?
01:14 PM t4nk_freenode: if I knew what you meant exactly, I'd say yes
01:14 PM aaroncnc: the thing that makes the gap between the motor and the frame to have the flex coupling.
01:16 PM t4nk_freenode: so the part that effectively conducts/holds the threaded rod... everything black is printed
01:17 PM aaroncnc: carefull on the things that the motor are mounted on. if the motors run how it can soften the material and may start to try and twist.
01:18 PM t4nk_freenode: I've had to fortify the nema mounts already... flimsy ones snapped too easily
01:18 PM aaroncnc: different topic that moment when you spend almost an hour trying to fnid out why i cant connect to a device to find that the stupid vpn i have to use blocks everything local..........
01:18 PM t4nk_freenode: hehehe
01:19 PM t4nk_freenode: don't start on such things man... I lost 2 hours editing commented lines and wondering why nothing changed
01:19 PM t4nk_freenode: just a day or two ago
01:35 PM aaroncnc: yea it just drives me mad. i think i am going crazy but then its just an oh yeah i left the vpn on right. just reflashed a thing 2 times and bypassed parts of the harness no big deal.
01:56 PM JT-Shop: the forum is funded for another year :)
01:58 PM roycroft: the linuxcnc forum?
01:59 PM JT-Shop: aye
02:00 PM roycroft: how does it get funded?
02:03 PM JT-Shop: a few of us fund it and sometimes people use paypal to fund it
02:03 PM roycroft: i ask because i'd be willing to kick in a bit every year
02:04 PM JT-Shop: thanks
02:04 PM JT-Shop: I'm not sure how the paypal thing works...
02:05 PM roycroft: let me know and i'll send a bit of cash
02:10 PM JT-Shop: looks like you would have to send a payment to one of the 4 members and any of us can use that to add to the credit
02:10 PM JT-Shop: it's usually $12 per month
02:11 PM roycroft: i'm not sure i'd want to contribute that much
02:11 PM roycroft: it's not a lot of money, but i give a few dollars here and there to a lot of people, and it adds up
02:11 PM roycroft: i was thinking more like $25/year
02:11 PM roycroft: and expecting that you'd have a lot of people contributing
02:11 PM roycroft: it sounds like it's not set up that way for linuxcnc
02:12 PM roycroft: it might be worth exploring - i think you could get the community to fully fund it quite easily
02:12 PM * roycroft just did his annual contribution to wikipedia and archive.org, actually
02:13 PM JT-Shop: $24 is two months, currently we have 13 months of credit
02:13 PM roycroft: wait
02:13 PM roycroft: is that the cost of hosting the forum?
02:14 PM JT-Shop: yes
02:14 PM roycroft: oh
02:14 PM roycroft: i thought you meant that people contribute $12/month
02:14 PM roycroft: that is, $12/month is the contribution you ask
02:15 PM roycroft: so if i sent you $24 that would pay for 2 months of hosting
02:15 PM roycroft: and i'd be good for a year
02:15 PM roycroft: i'd be happy to do that if you tell me where to send it
02:16 PM JT-Shop: last year someone contributed $44
02:18 PM roycroft: i'm pretty sure paypal have a mechanism for non-profits/volunteer projects like linuxcnc where they process micropayments without fees
02:18 PM roycroft: you might check with them
02:19 PM roycroft: that way, you can ask people to contribute $1 and you'll get all of it
02:19 PM roycroft: and if there is interest, i'd be willing to do that legwork
02:21 PM roguish[m]: JT-Shop: roycroft I paid for the forum last year. it's in jepler's name. I sent him money via paypal.. the least I could do for the effort.
02:21 PM roycroft: and having a single benefactor can be nice
02:21 PM JT-Shop: I saw two credits last December totaling $144 and I thought it was you
02:22 PM roycroft: but asking the community to contribute a small amount each has its own benefits
02:22 PM roguish[m]: roycroft: i'm all for it
02:22 PM roycroft: it helps remind people that there are a core group who put a lot of energy into the project
02:22 PM JT-Shop: actually it's in my name now, Jeff took a break
02:22 PM roycroft: and also better ensures continuity
02:22 PM roguish[m]: ok
02:22 PM roycroft: if that one benefactor goes away you have to scramble
02:23 PM roycroft: the forum is covered for a year, so this is something that would not have to happen for several months
02:23 PM roycroft: but if you'd like, i'll look into how that can be done with paypal
02:23 PM JT-Shop: all 4 of us are still members but I'm the contact person and we are all listed as owners
02:24 PM roycroft: and then you can put a contribution request on the main forum page next fall
02:24 PM JT-Shop: sure see if can be done, it's a digitalocean droplet
02:25 PM roycroft: who gets it in the end does not matter
02:25 PM roycroft: i'm sure that you just set up a separate paypal account, say, paypal@linuxcnc.org, and the money goes there
02:25 PM roycroft: whoever has access to that account can spend it as needed
02:26 PM roycroft: but i'll look into it soon
02:27 PM roycroft: which may mean the 1st of the year, as there's a lot of time to deal with it
02:27 PM roycroft: but i have already added it to my tickler list
02:28 PM roycroft: so i was just at jerry's
02:28 PM roycroft: they had metabo 15ga finish nailers on sale for $108
02:28 PM roycroft: they're normally $168
02:28 PM JT-Shop: digital ocean has a paypal button but that's for a member, not sure how you could do it with a paypal account
02:28 PM roycroft: now i can get rid of my very last harbor freight class nailer
02:29 PM roycroft: yeah, that wouldn't work, as it would be normal paypal stuff
02:29 PM * JT-Shop read back and understands now how the paypal account could work
02:29 PM roycroft: if you paid a dollar via that, paypal would keep most of it
02:29 PM JT-Shop: yep
02:30 PM JT-Shop: so if the members had access to the paypal account they could make payments from that account
02:30 PM roycroft: yes, you set up paypal@linuxcnc.org, and anyone who has access to that account can tranfer money anywhere
02:31 PM roycroft: or pay the digitalocean bill via paypal
02:31 PM roycroft: you have a "give us money" link on the forum page
02:31 PM roycroft: folks click on it, and send a dollar or whatever
02:31 PM roycroft: and paypal don't keep most of it
02:31 PM roycroft: and you use that to fund the project
02:32 PM roycroft: i think you'd get way more than the hosting cost in contributions
02:32 PM roycroft: and nobody would have to pony up any appreciable amount of money
02:32 PM roguish[m]: seb runs the buildbot machines.........
02:33 PM roguish[m]: oughta help him a bit too
02:33 PM roycroft: yes, that could be done
02:33 PM roycroft: and it could even help other things, like developing some neat bits of hardware that folks can buy or build after the design is complete
02:34 PM roycroft: i'm not a fan of places like gofundme, although if linuxcnc did one i would not complain
02:35 PM roycroft: i like the model of community contributions to cover the expenses of the project generally, such as the paypal thing i'm talking about
02:36 PM Tom_L: afternoon
02:38 PM roycroft: jt-shop: i just got a j-box for my step down transformer
02:39 PM roycroft: it's a bare transformer
02:39 PM roycroft: i'm going to put a ground bus inside the box
02:39 PM roycroft: and i'll ground the transformer frame
02:39 PM roycroft: is there any good reason to isolate the transformer frame from the j-box itself?
02:39 PM roycroft: i think there isn't, but i'm not 100% certain about that
02:41 PM Tom_L: if it ever shorted to the frame there would be
02:41 PM Tom_L: if it's got plastic between i doubt it's a concern either
02:42 PM roycroft: the ground bus will be mounted to the j-box
02:43 PM roycroft: so if i ground the transformer frame it will have continuity to the j-box anyway
02:44 PM roycroft: https://www.ebay.com/itm/153183382701
02:44 PM roycroft: that's what i'm talking about
02:45 PM roycroft: i could make a neoprene pad for it and use non-conductive screws to attach it, but i think it's probably ok mounted directly to the j-box
02:45 PM Tom_L: yup
02:46 PM JT-Shop: the control transformer I just put in the copy lathe was mounted to the panel and one side of the secondary is grounded to provide a neutral
02:46 PM * roycroft should go get started on that, now that lunch is over
02:46 PM roycroft: unlike jt-shop, i take a lunch half hour, not a lunch minute
02:46 PM * Tom_L should get started on a nap
02:48 PM roycroft: my lamp will only draw 0.1a, but i'll probably throw a 0.5a fuse in there anyway, as i'd rather not have that transformer catch on fire
02:48 PM Tom_L: you use din mount fuses?
02:52 PM JT-Shop: https://www.automationdirect.com/adc/shopping/catalog/power_products_(electrical)/transformers/1-phase_open_core_industrial_control_transformers/240x480_vac_to_120x240_vac/sp150mqmj
02:53 PM JT-Shop: I used that one
02:58 PM CaptHindsight[m]: has anyone run LCNC on RISC-V yet?
03:02 PM roycroft: i'll just use an inline 1/4" glass fuse for this
03:02 PM roycroft: no need for anything fancy
03:03 PM roycroft: or maybe a 5x20mm inline glass fuse, depending on what fuse holders i have in stock
03:04 PM roycroft: my cnc control panel has din mount fuses, though
03:05 PM roycroft: https://www.mcmaster.com/7641K36/
03:05 PM roycroft: that's the type i like to use
03:05 PM roycroft: they fit well with my other din rail terminal blocks
03:12 PM * JT-Shop has a few hundred din rail mount indicating fuse holders both 24vdc and 120vac
03:25 PM JT-Shop: so if someone needs a few I'm happy to share
03:26 PM roycroft: i think i have enough for my current project, thanks
03:27 PM roycroft: but next time i order something from you i might ask you to throw a few of them in with the rest of the order
03:35 PM javabean: would that be like the gummybears you get in some tech orders?
03:37 PM aaroncnc: i seem to get rubber ducks in mine....
03:38 PM aaroncnc: and it has lead to a feed back loop. people seen them on my desk and thought i liked them so they got me more. and i dont have the heart to put them in the trash so they keep multiplying.
03:44 PM JT-Shop: I liked the stuffed Gecko's you got with stepper drives back when
03:45 PM roycroft: are geckos the new tribbles?
03:45 PM roycroft: er
03:45 PM roycroft: i mean are rubber ducks the new tribbles?
03:48 PM roycroft: hmm, my spindle mount that was declared missing allegedly has arrived in anchorage again
03:48 PM roycroft: i guess it got tired of the weather in southwest england
03:50 PM aaroncnc: roycroft, yea kinda, i think i have around 30 ducks now... someone brouhgt me one from a trip to vegas that lgihts up and they were excited to give it to me to... i think i am in this to deep.
04:06 PM CaptHindsight[m]: $22 FPGA board with Ethernet getting LCNC support https://www.aliexpress.com/item/1005003065420878.html
04:07 PM CaptHindsight[m]: https://github.com/enjoy-digital/colorlite
04:08 PM aaroncnc: those connectors make me uncomfortable.
04:08 PM JT-Shop: Bedrug installed now to get the tonneau cover back on
04:09 PM t4nk_freenode: Order time: 10:30 Jul. 17 2020 got you beat, CaptHindsight[m] ;)
04:10 PM CaptHindsight[m]: https://forum.linuxcnc.org/media/kunena/attachments/30953/colorcnc.tar.gz
04:10 PM t4nk_freenode: what the?!
04:11 PM CaptHindsight[m]: wuz dat the same board you are working on?
04:12 PM CaptHindsight[m]: why i always find it silly when open source devs compete vs cooperate
04:12 PM t4nk_freenode: yeah, I got that board last year, but just to mess around with... never got around to
04:13 PM t4nk_freenode: had no idea it would show up in this context though...
04:13 PM t4nk_freenode: hehe
04:14 PM XXCoder: once a while compete is good, expecially when main project arent moving at all and devs is refusing
04:14 PM XXCoder: its when they fork for no apparent reason that I dislike
04:15 PM t4nk_freenode: that's not really what this is about
04:16 PM CaptHindsight[m]: I'm only poking fun since you posted your order
04:17 PM CaptHindsight[m]: i don't have any of the Lattice tools but he also posted his FPGA config
04:17 PM t4nk_freenode: I think I never got round to doing anything with it, because the fpga isn't top of the line, say
04:17 PM t4nk_freenode: rather had serdes
04:18 PM CaptHindsight[m]: looks like the Ethernet controller is somewhat configurable
04:18 PM t4nk_freenode: I think this one is entirely open source, dev tools
04:18 PM t4nk_freenode: or at least covered by some
04:18 PM CaptHindsight[m]: I have to look at the data sheet..... does it have a hard risc-v core as well
04:19 PM CaptHindsight[m]: saw a mention of that
04:20 PM CaptHindsight[m]: https://www.latticesemi.com/-/media/LatticeSemi/Documents/DataSheets/ECP5/FPGA-DS-02012-1-9-ECP5-ECP5G-Family-Data-Sheet.ashx?document_id=50461
04:20 PM t4nk_freenode: https://www.latticesemi.com/Products/FPGAandCPLD/ECP5
04:20 PM * JT-Shop declares any work related stuff done for the day
04:20 PM t4nk_freenode: Up to 3.2 Gbps SERDES rate with ECP5, and up to 5 Gbps with ECP5-5G
04:20 PM t4nk_freenode: but not with the one on that board
04:21 PM CaptHindsight[m]: it doesn't need much bandwidth
04:21 PM t4nk_freenode: yeah, but imagine what you could do with that
04:22 PM CaptHindsight[m]: I was thinking about a SERDES for SPI to extend it's distance and keep its top speed
04:22 PM CaptHindsight[m]: several SPI based motor controllers around
04:23 PM t4nk_freenode: I wonder what it would cost to make a pcb for that through those ehh jlpslcp... youknow
04:23 PM CaptHindsight[m]: but you might want several meters between the controller with GUI and the motor drive/controller
04:25 PM t4nk_freenode: I'm not thinking lcnc with this... but the whole concept of serdes with those chip just... excites me a lot ;)
04:26 PM CaptHindsight[m]: maybe you can slap together a Rpi4 sd-card img using your FPGA board
04:30 PM CaptHindsight[m]: how about a LCNC GUI made of LED's like those giant walls at stadiums
04:30 PM CaptHindsight[m]: worlds largest CNC controller and have it run one of those micromills
04:31 PM CaptHindsight[m]: big GUI small machine, it's new and dumb so it might catch on
04:33 PM CaptHindsight[m]: https://www.youtube.com/watch?v=LiCQzQsLFqA
04:33 PM CaptHindsight[m]: firmware is built using yosys nextpnr toolchain. ^^
04:44 PM CaptHindsight[m]: SPI over LVDS at 10Mbs reaches 3m
04:50 PM CaptHindsight[m]: https://www.analog.com/en/products/ltc4332.html#product-overview dedicated SPI extender device
04:50 PM roguish[m]: roycroft: roycroft how do you clean sharpaning stones?
04:50 PM CaptHindsight[m]: https://www.mikroe.com/spi-extend-click
05:11 PM roycroft: i mostly use diamond "stones", and i just rinse them in warm running water and use a bristle brush to remove the slurry
05:11 PM roycroft: sometimes i'll use simple green if a lot of slurry builds up
05:12 PM roycroft: i do my final honing on ceramic waterstones, and i rinse them with distilled water
05:15 PM roycroft: i just went to find a fuse holder
05:15 PM roycroft: i went to an electrical supplier that i often use first, and they had some that were rated at 32vdc
05:15 PM roycroft: i asked if they could find out what the ac rating was, as i needed to use them for a 120vac circuit
05:16 PM roycroft: the guy told me "it doesn't matter if it's ac or dc. if it's rated at 32v it's only good for 32v"
05:16 PM roycroft: and he would research no further
05:16 PM roycroft: so now i know that's a supplier i can only go to when i already have the exact part numbers i'm looking for
05:16 PM roycroft: since they don't know anything about electricity
05:16 PM roycroft: i then tried the auto parts store circuit
05:17 PM roycroft: starting with the nearest one, the first four i went into the staff were umasked
05:17 PM roycroft: unmasked
05:17 PM roycroft: so i politely told them why i won't be able to shop there any more
05:17 PM roycroft: but the fifth one, fortunately, had a staff who were wearing masks, and i found what i needed
05:18 PM roycroft: i knew auto parts store personnel are usually not the smartest people on the block, but i did not know so many of them were such total morons
05:19 PM roycroft: even if you "don't believe" that masks are effective, the majority of your customers do, and if you want to sell them stuff you should behave in such a way that facilitates your ability to do so
05:35 PM CaptHindsight[m]: roycroft: published nearly 60 years ago https://en.wikipedia.org/wiki/Anti-intellectualism_in_American_Life he done seen nuthin yet :)
08:00 PM Tom_L: new rotary configs on the rpi now
08:09 PM -!- #linuxcnc mode set to +v by ChanServ
08:34 PM roycroft: well this is kind of a nice mood pickup
08:34 PM roycroft: i just bought tickets to see weird al with some friends
08:34 PM roycroft: the show is not until the end of june, but i haven't been to the cinema or to a concert in two years
08:35 PM roycroft: it feels really good to at least be making plans to do so again
08:35 PM roycroft: weird al might not be my top choice, but it will be a fun show, i'm sure
09:29 PM roycroft: both michael nesmith and al unser have died
09:31 PM XXCoder: one of very rare shows I went to, I watched chriss angel
09:31 PM XXCoder: it was in 2008, and it was amazing, im sure hearing people got more of plot, but then we paid far off chairs and got second row seats
09:32 PM Tom_L: little al?
09:32 PM Tom_L: huh
09:32 PM XXCoder: it was $80, second row I think was $250 something
09:32 PM roycroft: senior
09:32 PM Tom_L: k
09:33 PM roycroft: he had been suffering from liver cancer since 2004
09:33 PM roycroft: and he was in his 80s
09:34 PM roycroft: but still, he was one of the giants of the formula one racing circuit
09:34 PM Tom_L: yup
09:35 PM XXCoder: id sugegst watch that show if you guys like magican tricks show
09:35 PM XXCoder: he does really good job
09:39 PM Tom_L: i watched the one that caught bullets in his teeth. he stopped doing it though
09:39 PM XXCoder: criss angel?
09:39 PM Tom_L: i dunno his name
09:39 PM Tom_L: maybe
09:49 PM roycroft: i think mickey dolan is the only monkee still around now
09:49 PM roycroft: davey jones died quite a while ago
09:50 PM roycroft: and i think peter tork died a few years ago
09:50 PM roycroft: yeah, in early 2019
09:50 PM roycroft: so mikey is the last monkee
09:51 PM XXCoder: worlds oldest woman recently died too. she was 124. surived by children, most over 100 years old
09:54 PM roycroft: the world's oldest woman dies on a regular basis
09:54 PM roycroft: as does the world's oldest man
09:54 PM XXCoder: i can't imange being 124. she saw both wars, surivied both plagues
09:54 PM XXCoder: saw rise of tech we use now
09:54 PM XXCoder: moon landing
09:54 PM XXCoder: so many history
09:55 PM roycroft: people think it's a big deal to remember the days before the internet
09:55 PM roycroft: and they think it's a big deal to remember the days before television
09:55 PM Tom_L: you don't have to be 124 to have seen the moon landing
09:55 PM roycroft: but i think it's an even bigger deal to remember the days before radio
09:55 PM XXCoder: Tom_L: didnt say that
09:56 PM * Tom_L didn't say XXCoder did say that :)
09:56 PM XXCoder: its just part of her huge range of recent history
09:56 PM Tom_L: yes
09:56 PM Tom_L: kennedy, moon landing etc
09:56 PM * roycroft isn't 124, but was born before the space age
09:57 PM XXCoder: me, its after heh
09:57 PM XXCoder: I'm 45
10:01 PM roycroft: i got the electrical work mostly done on my bandsaw today
10:01 PM roycroft: i should be able to finish it up in the morning and test it
10:02 PM roycroft: but then i have to remove the junction box i'm using and paint it before i can do the final install
10:04 PM XXCoder: nice