#linuxcnc Logs
Jun 27 2018
#linuxcnc Calendar
12:00 AM Lcvette: .weather mars
12:03 AM Lcvette: ?
12:03 AM theCockerel: Yahoo! Weather - Mars, NW, DE: Partly Cloudy, 9°C (48°F), Humidity: 96%, Light breeze 3.1m/s (↙)
12:03 AM Lcvette: .weather wilmington, nc
12:03 AM theCockerel: Yahoo! Weather - Wilmington, NC, US: Cloudy, 22°C (71°F), Humidity: 97%, Light breeze 3.1m/s (←)
12:03 AM Lcvette: pretty neat
12:50 AM IchGucksLive: hi all
12:50 AM IchGucksLive: geting a hot week in germany as we expect 34Deg
12:50 AM IchGucksLive: Lcvette, lots of wilmingtons in the USA
12:53 AM hazzy-lab: .weather
12:53 AM theCockerel: I don't know where you live. Give me a location, like .weather London, or tell me where you live by saying .setlocation London, for example.
12:53 AM hazzy-lab: you used to know :P
12:54 AM hazzy-lab: .weather Atlanta
12:54 AM theCockerel: Yahoo! Weather - Atlanta, GA, US: Scattered Showers, 23°C (73°F), Humidity: 85%, Light breeze 3.1m/s (↗)
12:59 AM roycroft: it's cooling off here
12:59 AM roycroft: we'll be in the mid-20s all week
01:02 AM * hazzy-lab is jealous
01:05 AM hazzy-lab: gn8
01:13 AM IchGucksLive: im off 2 garden
01:44 AM Deejay: moin
03:34 AM miss0r: g'day
03:35 AM miss0r: Do anyone in here have experience with the procedure of changing out the language in the controller on an Okuma lh55-n lathe?
04:28 AM RyanS: made a ball turner https://drive.google.com/file/d/1SCiWrTUEcXcD0fgDwp2B9re8bA5Ry53B/view?usp=sharing
04:35 AM miss0r: Nice. Isn't the orientation on the cutter a bit off?
04:36 AM miss0r: also, it seems you have found something to use the chinesium boring head for :D I have the same shitty bang bang model you do. It took me a while to turn it into something useable
04:37 AM RyanS: yeah the toolbit cuts like shit
04:38 AM RyanS: https://drive.google.com/file/d/1dqXmBDOJ97IVNePT2wD6seM7Q7GsNwHM/view?usp=sharing
04:39 AM XXCoder: I keep gettinmg flipping house rentals ads
04:39 AM miss0r: The toolbits that come with it are a joke. I mean - you 'can' get them to work, but you have to grind the sh*t out of them first
04:39 AM XXCoder: its getting REAL annoying
04:40 AM RyanS: last time I used it the bore was oversized, not sure if the boring head slipped
04:41 AM miss0r: RyanS: You should always use a dial indicator when adjusting a boring head. Especially when it comes to the chinesium ones
04:42 AM miss0r: XXCoder: Are you on the market for renting a house? :P
04:43 AM miss0r: In that case i might have something that is of intrest to you ! (using add voice)
04:44 AM XXCoder: no!
04:44 AM XXCoder: I own part of house lol
04:44 AM XXCoder: which means...
04:44 AM XXCoder: somehow they predict doom for my house.
04:44 AM miss0r: Trust the algorithm!
04:45 AM XXCoder: lol
04:46 AM miss0r: I need to get going on installing some cable here. I have to set up a three phase outlet for the EDM. (I HATE EXTENTION CORDS LIKE NOTHING ELSE)
04:48 AM RyanS: did I miss something exciting?
04:48 AM XXCoder: yeah]
04:49 AM XXCoder: so much drama
04:49 AM XXCoder: 400 lines in least. surpising stopped right befor eyou entered
04:49 AM miss0r: hehe
04:50 AM miss0r: Last thing I wrote you, RyanS:
04:50 AM miss0r: RyanS: You should always use a dial indicator when adjusting a boring head. Especially when it comes to the chinesium ones
04:50 AM RyanS: damn, can't keep my eyes off the screen for a second
04:50 AM miss0r: also: fsck! I'm out of the appropriate installation cable
04:51 AM RyanS: there's this type of bit https://www.haythornthwaite.com/ball%20turning.html
04:52 AM miss0r: now THAT looks like something that would work well
04:53 AM miss0r: The stresses are all the right places, if you use it that way
04:54 AM RyanS: or use the unused edges of my CCMTs http://thebloughs.net/ball-turner-manufacture/
04:54 AM miss0r: sure
04:55 AM miss0r: What have you used for bearings in there?
04:55 AM RyanS: I wonder if there's any other tools that use the other edge of ccmt
04:56 AM RyanS: igus flange bushings
04:57 AM miss0r: Alright :]
04:58 AM miss0r: Excellent choice, might I add
04:58 AM miss0r: so I suppose your boring head came with a straight shank, and not a taper?
05:00 AM RyanS: made the shank, I literally can't believe the thread fitted well
05:00 AM miss0r: :D
05:01 AM RyanS: igus flange bushings meant to be good for low rpm, high, oscillating loads
05:02 AM RyanS: not sure if it's vibration damping
05:04 AM miss0r: its not
05:05 AM miss0r: But they are very tight in tolerences
05:08 AM gloops: https://www.ebay.co.uk/itm/Ward-No7-Capstan-Lathe/183287095997? lot of machine there for that money
05:09 AM RyanS: urgh, stuff the ccmt tool holder.. ooo would a carbide bit work as an EDM die?
05:10 AM miss0r: gloops: yeah, but it looks like it needs a lick of paint
05:11 AM gloops: nice little..or big project for somebody, those ward lathes were really good
05:13 AM XXCoder: lot of rust also
05:14 AM miss0r: but that rust looks somewhat superficial
05:14 AM miss0r: My ventilation equipment just got here. 100mm system to be installed here in the shop
05:15 AM jesseg: lol https://videoflier.com/movies/1530092280902679778706
05:15 AM gloops: probably would have been lathered in oil and grease when it got put outside, bit of the luck the important surfaces not corroded
05:15 AM gloops: looks like stainless ways anyway
05:16 AM miss0r: Those are just waycovers
05:16 AM miss0r: Its regular'ol cast iron underneath
05:16 AM gloops: yeah they are on closer inspection
05:17 AM * Loetmichel just got a delivery from pearl.de (german "gadget"/surplus seller)... aaand of course the microusb cable to proggram the fan was already defective. luckily one has a bunch of these around for the smartphones... i am just courious how long it will take for the meter stick and the 4 screwdrivers (one already in my pocket) to disappear from my desk... :-) -> http://www.cyrom.org/palbum
05:17 AM * Loetmichel /main.php?g2_itemId=17137&g2_imageViewsIndex=1
05:19 AM miss0r: I give it 2 days :]
05:19 AM miss0r: By the end of the week they're gone ;)
05:20 AM RyanS: I need to think of some other leadscrew cover, the telescopic tube preventing the carriage getting close to the chuck
05:22 AM miss0r: god damnit! I've done it again. I get distracted while ordering materials. I've managed to order two air duct regulator valves and one shutter valve, but it should've been the other way around! >.<
05:26 AM XXCoder: checklist twice, order once. ;)
05:58 AM diverdude: hi...i am getting to a point where I have configured most of my CNC. However I still need to configure "Driver microstepping", "Pulley teeth" and "Leadscrew pitch" for all axes. There are no mention of these in the manual. How do I figure out the right numbers for these settings?
06:07 AM XXCoder: diverdude: its because it depends on your machine
06:07 AM XXCoder: drivers itself has microstepping setting. say if its set to 4, linuxcnc microstepping must be set at 4
06:08 AM XXCoder: leadscrews one you simply put in pitch as found on your machine info
06:08 AM jthornton: not really, microsteps is only in the conf wizard linuxcnc only uses the end number
06:09 AM XXCoder: oops yeah lol
06:17 AM rmu: diverdude: stepper motor usually takes 200 "full steps" per revolution, each of these full steps can be divided into n microsteps, n can be arbitrary number, usually 2^something or 10. microsteps are configured at the stepper driver (if at all). leadscrew pitch: just look at it or turn it a few revolutions (machine off) and measure how far the axis moves. that is usually a round number like 3mm/rev.
06:18 AM XXCoder: chineseium its almost always 8mm/rev
06:19 AM XXCoder: forgot if its for leadscrew or ballscrews
06:19 AM rmu: diverdude: what you really want to configure is how many steps are needed per machine unit. 200 steps/rev mit 10 microsteps and 5mm pitch screw would be 200 * 10 steps per revolution, that moves axis 5mm, ergo 400 steps per mm.
06:21 AM gloops: simple way to check screw pitch - turn the screw 1 rotation, measure the travel
06:22 AM gloops: if it has pulleys - get counting
06:23 AM XXCoder: my gearing system, i copied from this https://thumbs.dreamstime.com/b/visual-puzzle-rotating-gears-belt-drives-mechanics-math-crossed-plus-same-task-text-russian-answer-included-69726322.jpg
06:26 AM diverdude: rmu: right...i know this machine has 400 motor steps
06:27 AM diverdude: rmu: but the microsteps is not mentioned anywhere
06:27 AM gloops: you dont actually need to go through stepconfig every time to adjust this
06:27 AM gloops: in fact, running stepconfig after setup is a habit to get out of
06:27 AM jthornton: yup
06:27 AM diverdude: gloops: i know....but so far i have kind of ignored that part to just get something running....but now i need to make sure that it actually moves correctly
06:28 AM gloops: ok, have you found the INI file yet?
06:28 AM diverdude: gloops: yes i know where the ini file is
06:28 AM gloops: open that
06:28 AM jthornton: diverdude: what stepper drives do you have?
06:29 AM diverdude: jthornton: this one https://www.china-cncrouter.com//downfile/2015120417282452561.pdf
06:29 AM diverdude: gloops: ok, and then?
06:29 AM gloops: what is SCALE set at in the INI file
06:30 AM rmu: diverdude: if unsure, measure. put in SCALE of 100 or so, make a move of 100mm and measure how far it really moves, adjust SCALE accordingly.
06:30 AM diverdude: gloops: 160
06:30 AM gloops: SCALE = steps per unit (if your config is mm thats the number of steps per mm)
06:31 AM gloops: 160 ok, how is the machine behaving - is it moving twice as far as it should, half as far etc
06:32 AM gloops: your scale needs to be 80
06:33 AM jthornton: diverdude: page 17 gives you the scale number of 400
06:33 AM gloops: lol, or 400
06:34 AM gloops: 160 scale @400 steps would mean screw pitch of 2.5mm, which is unlikely
06:34 AM rmu: page 17 is the page with page number -16- ;-)
06:35 AM gloops: far more likely to be 5mm, - 80 SCALE
06:35 AM rmu: according to that page, SCALE should be 400
06:36 AM gloops: 1mm screws?
06:37 AM rmu: 200 steps per rev, 16 microsteps, 8mm/rev would give 400 per mm
06:37 AM gloops: well im going by diverdude saying the machine uses 400 steps
06:38 AM rmu: yes, 400 steps per mm ;)
06:39 AM gloops: 400 steps per rotation, 400 scale = 1mm per rotation
06:39 AM rmu: whatever, it is easily measured
06:39 AM gloops: yes its the scale thats 400, not the steps diverdude
06:41 AM gloops: remember if you change anything in the ini or hal you need to save it and restart linuxcnc
06:42 AM rmu: or use emccalib
06:46 AM Beachbumpete1: morning
06:47 AM Beachbumpete1: I managed to lunch a part last night ;)
06:47 AM gloops: what does that mean Beachbumpete1 ?
06:47 AM Beachbumpete1: all because I had edited the program and forgot to delete the first one that had an issue
06:48 AM gloops: ahh
06:48 AM Beachbumpete1: so It had been a long time since I had machined that particular part
06:48 AM Beachbumpete1: and when I went to open the program I could not remember which one was the new one
06:48 AM Beachbumpete1: I chose wrong LOL
06:49 AM Beachbumpete1: worst part was the material was my last piece of that size
06:49 AM Beachbumpete1: so I had to cut down a larger piece of stock to the correct size so I could machine the part using the CORRECT program
06:50 AM Beachbumpete1: now I am down two pieces of stock so gotta order more today.
06:50 AM Beachbumpete1: really annoyed with myself because I really try to manage my programs and put notes in the body so I can read them when I have not run the program in awhile to help me remeber the details
06:50 AM gloops: i end up with files like 'part-latest' 'part-latest improved' 'part-very latest' lol
06:51 AM diverdude: gloops: ack..the phone rang
06:51 AM Beachbumpete1: LOL I do the same thing
06:51 AM Beachbumpete1: mine is usually Final, latest final, etc. LOL
06:51 AM diverdude: gloops: should i set SCALE = 400?
06:51 AM gloops: diverdude have you taken any measurememts of travel at all yet?
06:51 AM rmu: there is a thing called "last modified" on a file
06:52 AM Beachbumpete1: I do need to go back thru the files that are on the machine and delete the bullshit ones
06:52 AM diverdude: gloops: no
06:52 AM jthornton: I date my PLC files when I modify them like clip-inserter-01-12-18.
06:52 AM gloops: rmu yes but in the blur of activity nobody checks stuff like that
06:52 AM diverdude: gloops: well i have actually
06:52 AM Beachbumpete1: I need to come up with a better means of tracking this stuff.
06:52 AM diverdude: gloops: i checked a small travel on Z axis with a ruler to see if it was correct and it was off
06:52 AM gloops: a very simple way - set the jog increment to 5mm, jog - measure
06:52 AM gloops: should be 5mm thereabouts
06:53 AM Beachbumpete1: I typically do not like to delete the old ones in case I need a reference of something
06:53 AM diverdude: gloops: true.,...i will try that
06:53 AM Beachbumpete1: my CAD files are the worst because especially here they are ALWAYS making changes to drawings
06:53 AM Beachbumpete1: sometimes the changes get reverted
06:54 AM Beachbumpete1: so I cannot really delete the previous ones without causing myself a LOT more design work.
06:54 AM rmu: put everything into version control. storage is cheap nowadays.
06:54 AM Beachbumpete1: I mostly use dates on the CAD files tho
06:54 AM miss0r: There we go. Now I have some ventilation running, so I don't get suffocated in kerosine fumes.
06:54 AM diverdude: gloops: yeah when i move 5mm it only moves something like 3
06:55 AM Beachbumpete1: right now we have a customer that has a custom closet and a breakfast/media bar and there must be a hundred files just for those two builds
06:55 AM Beachbumpete1: add to that the .pdf files that contain the drawings in different elevations/views
06:56 AM Beachbumpete1: and then add to that the 3D photorealistic renderings of each one and it gets a bit crazy rather quickly.
06:56 AM diverdude: gloops: 2-5 to 3mm is what its moving when it should move 5
06:56 AM gloops: ok diverdude try 400 scale
06:56 AM diverdude: gloops: ok so i configure ini file and set SCALE = 400.0, save it and restart linuxcnc?
06:56 AM gloops: yep
06:58 AM diverdude: gloops: aha that looks more correct
06:58 AM Beachbumpete1: really need an accurate means of measuring travel along the axis to calibrate no?
06:59 AM SpeedEvil is now known as Guest60705
06:59 AM gloops: <rmu> 200 steps per rev, 16 microsteps, 8mm/rev would give 400 per mm
07:00 AM gloops: if you need to fine tune that just change the 400 SCALE by small amounts, see which way its going, measure etc
07:06 AM BitEvil_ is now known as SpeedEvil
07:36 AM rmu: if you have a travel of say 500mm and you can measure ("read the tape measure") to +-0,5mm and ignore inconsistencies in the screw/ways/etc... you can calibrate SCALE accurate enough
07:37 AM rmu: usually that should be a "round" number ;-)
07:40 AM miss0r: remember the supreme skills where they drilled a pensil led? well, this one is also quite interresting: https://www.youtube.com/watch?v=4A79tj1KR2c
08:15 AM Loetmichel: harhar. ONE day and boss notices about the new shelve: "there is no room for our 24" displays! Change that!"... lets see how it takes him to notice that he now can no longer put high things under it :-) -> http://www.cyrom.org/palbum/main.php?g2_itemId=17140&g2_imageViewsIndex=1
08:25 AM rmu: miss0r: this video needs a void de-exciter
08:29 AM JT-Shop: stupid stamps.com won't print Russian letters...
08:30 AM SpeedEvil: Make stamps.com great again.
09:01 AM IchGucksLive: hi all
09:01 AM IchGucksLive: gloops, firer
09:01 AM IchGucksLive: diverdude, WHY the Hell are you using microsteps
09:02 AM IchGucksLive: 400steps per mm
09:02 AM IchGucksLive: diverdude, this is fully inefficent
09:02 AM IchGucksLive: diverdude, reduce to SCALE 100
09:02 AM IchGucksLive: diverdude, so it is a 0,01mm per step
09:04 AM IchGucksLive: diverdude, if you got a 8mm pitch and direkt drive use 800steps
09:04 AM IchGucksLive: diverdude, so 4microsteps = SCALE 100
09:06 AM IchGucksLive: diverdude, 200Steps/stepper Times 4 microsteps = 800Steps/rev DIV by 8mm ==== SCALE 100 -> 100steps/mm = 0,01 Precicion
09:06 AM IchGucksLive: gloops, on ?
09:06 AM gloops: hi
09:06 AM IchGucksLive: :(
09:07 AM gloops: whats up Ichs?
09:07 AM IchGucksLive: WHY are you suporting microsteps as you know how to do it right
09:07 AM IchGucksLive: a SCALE of 400 is realy bad
09:08 AM IchGucksLive: gloops, if he got microsteping so th hardware can pull better then use it
09:09 AM IchGucksLive: so 8mm pitch on standard stepper direct move is a solution 800 meaning 4microsteps
09:09 AM gloops: dont know what drivers are with that machine - can he change the step settings?
09:09 AM IchGucksLive: the only thing is G540 that cand be changed
09:09 AM IchGucksLive: all otheres can
09:10 AM IchGucksLive: gloops, 'part-latest' 'part-latest improved' 'part-very latest' THAT is not your belive i hope
09:11 AM IchGucksLive: part_10_V1
09:11 AM IchGucksLive: part_10_motorClamp_V1
09:11 AM gloops: yes a good system for file organisation
09:12 AM IchGucksLive: part_11_motorDistance_V3
09:12 AM IchGucksLive: part_11_motorAxisDistance_67mm
09:12 AM IchGucksLive: this are partnames as the drawing graps this
09:12 AM IchGucksLive: with the projekt name or number it fils together
09:13 AM IchGucksLive: to a part list
09:14 AM IchGucksLive: gloops, tomorrow trhe summer is calle off in the UK Hazel saying
09:15 AM IchGucksLive: im off 2 till later
09:30 AM jthornton: interesting
09:40 AM gloops: Wetherspoon running out of John Smith's beer and Strongbow cider as carbon dioxide shortage hits
09:42 AM gloops: this is the longest unbroken hot spell here i can ever remember
09:43 AM gloops: we had the beast from the east freeze, then straight into record heat - and still in it
09:43 AM gregcnc: the end is nigh?
09:43 AM gloops: probably just coincidence
10:28 AM JT-Shop: amazing he declared that all drives are configurable for micro steps except one... which is just not true!
10:31 AM rmu: since when are microsteps bad.
10:35 AM rmu: JT-Shop: i think he meant that except for the gecko G540, you can deactivate microsteps on all drives. which is also not true.
10:36 AM JT-Shop: I thought that was what I said
10:37 AM Rab: rmu, since they reduce your torque, unless I'm missing something.
10:38 AM rmu: Rab: that's a misconception
10:38 AM rmu: torque from one full step position to the next full step position is not reduced
10:43 AM gregcnc: of course it
10:43 AM gregcnc: is
10:43 AM gregcnc: doh, not full step
10:44 AM gregcnc: but what good is a programmed position if the torque just isn't there to hold it?
10:45 AM Rab: I guess it's a form of dithering with the potential to non-deterministically increase resolution.
10:45 AM Rab: But I am not sure that benefits all jobs.
10:45 AM rmu: motor runs smoother
10:46 AM rmu: electrical noise is reduced
10:46 AM rmu: vibration problems reduced
10:46 AM rmu: etc
10:46 AM Rab: Those are benefits.
10:46 AM gregcnc: the illusion of accuracy is what most people get from it
10:48 AM rmu: a stepper should be able to hold at least 1000 different mechanical positions with microstepping
10:48 AM JT-Shop: my G203v drives morph from 10 micro steps to full steps and the morphing zone is adjustable to get super smooth stepper at all rpm ranges
10:48 AM gregcnc: it really depends on how you're using it in the machine
10:49 AM rmu: of course, but anything that assumes the stepper can resolve more than about 0.1° is an illusion
10:50 AM gloops: Germany are OUT
10:50 AM rmu: gloops: 5min to go
10:50 AM gloops: Korea just scored
10:50 AM gloops: ahh no, off side
10:51 AM gloops: ref checking video
10:51 AM rmu: hahahaha...
10:51 AM rmu: gloops: https://twitter.com/Marvin_Ronsdorf/status/1010995893301137410/photo/1
10:52 AM gloops: KOREA 1 GERMANY 0
10:52 AM rmu: f*ing lag
10:53 AM gloops: cant read german rmu
10:53 AM gloops: first time since 1938 they exit at the group stage - slightly ominous
10:53 AM rmu: gloops: the table has all scenarios from 0:0 to 3:3 in both games
10:55 AM gloops: its over now Korea 2 Germany 0
10:55 AM rmu: wtf
10:55 AM gloops: caught on the break, keeper was attacking
10:55 AM rmu: i'm a minute behind it seems... so SWE and KOR
10:58 AM gloops: thats it
10:59 AM rmu: hihihi seems germany is on the market for a new head coach
11:01 AM gloops: finished bottom, bit of a shocker
11:06 AM jesseg: Loetmichel, that usb readout fan is bloody charming
11:08 AM Loetmichel: jesseg: its funny. and it cools the brain
11:09 AM Loetmichel: company has no A/C, only for the measurement chambers ;)
11:09 AM jesseg: Does it work pretty good, stable display of text, pretty bright, etc?
11:10 AM Loetmichel: all of that, slight jitter when crossing what i imagine is the "zero degree point" with marquee text.
11:10 AM Loetmichel: but its not very well balanced
11:10 AM jesseg: lol what was it - pretty cheap?
11:10 AM Loetmichel: it shudders on its gooseneck quite a bit
11:10 AM Loetmichel: 9.90 eur ;)
11:11 AM jesseg: ahh OK
11:12 AM Loetmichel: https://www.pearl.de/a-PX5939-1173.shtml?query=usb+l%C3%BCfter
11:12 AM Loetmichel: REALLY cheap ;)
11:51 AM IchGucksLive: hi all
11:52 AM IchGucksLive: seams germany in deep shock
11:52 AM IchGucksLive: noone here at lakeside completly empty while shoud be crouwded
11:52 AM gloops: bit of a shock that Ichs
11:54 AM IchGucksLive: gloops, it is as it is
11:54 AM IchGucksLive: diverdude, online ?
12:03 PM gloops: as someone here just said - germany always mess up in russia lol
12:11 PM skunkworks: Jeeze - the lengths you go through when your choice of cnc control sucks..
12:12 PM skunkworks: and more https://www.youtube.com/watch?v=hyncFl1DY4Q
12:13 PM IchGucksLive: gloops, today the cables ariffed and the dragchains for the new cnc serie
12:14 PM IchGucksLive: lots of work todo
12:14 PM skunkworks: (mach4 + Ethernet smooth stepper (ESS) doesn't do threading - yet)
12:14 PM IchGucksLive: it will at mach5+
12:15 PM IchGucksLive: you can do this with 5A china bob and a simple 4hole encoder
12:15 PM IchGucksLive: on lcnc
12:15 PM gloops: what are you building Ichs>
12:15 PM IchGucksLive: same as always
12:17 PM IchGucksLive: gloops, army now in to fire
12:18 PM gloops: yeah, difficult to stop on the moors, its all dry heather
12:18 PM gloops: also an earthquake recorded in Surrey today
12:18 PM IchGucksLive: and that will smell for some years
12:19 PM gloops: it will clear out all the dead stuff
12:19 PM IchGucksLive: gloops, firetruck to bumphole detected
12:20 PM IchGucksLive: fire is natural all over the world but we lost a eye on that
12:20 PM gloops: children playing with matches probably
12:21 PM IchGucksLive: more older expirienced i think
12:22 PM IchGucksLive: gloops, i did take a look at the forcast here and they saying heateave untill wendsday
12:22 PM gloops: supposed to be cooler here at weekend, desperate for rain
12:22 PM IchGucksLive: i got a lake and running water bye the house
12:23 PM gloops: have got water supply but no hosepipes, have to carry it
12:23 PM gloops: for garden
12:24 PM IchGucksLive: im off till tommorrow Gn8
12:26 PM roycroft: that's a rather impressive wildfire for the uk
12:26 PM roycroft: it rivals some of our wildfires
12:26 PM roycroft: i hope you get the rain that is needed to put it out soon
12:26 PM gloops: its doing that ground a bit of good roycroft
12:27 PM gloops: i was on a flat roof earlier, the tar was molten, 33C
12:32 PM Deejay: sticky under the shoes ;)
12:32 PM mozmck: 33C is not bad.
12:32 PM gloops: yes, cant put hand on anything, metal is too hot
12:42 PM roycroft: we have a fire that's almost 100,000 acres already
12:42 PM roycroft: fire season started really early this year
12:42 PM roycroft: and it's expected to be an especially bad season
12:42 PM roycroft: which is pretty much how every fire season for the past 15 years or so has been
01:01 PM miss0r: forrest can hardly regenerate at the rate its burning at the moment
01:02 PM roycroft: not in the short term
01:02 PM roycroft: but it will recover over time
01:02 PM roycroft: the uk have a much longer history of forest management than we do here in the usa
01:02 PM roycroft: and i don't know how forests are managed there
01:02 PM roycroft: but we spent much of the 20th century here focusing on fire suppression
01:03 PM roycroft: resulting in a huge buildup of fuel in our forests, which caused some very spectacular fires
01:03 PM roycroft: we've shifted in the last couple or three decades to containment, not suppression
01:04 PM roycroft: and that's both more cost effective and better for overall forest health
01:04 PM roycroft: we still do suppression around developed areas, of course
01:05 PM mozmck: Selective logging also helps.
01:06 PM jesseg: I just won this by bidding at t=-1s https://www.ebay.com/itm/292614411605
01:07 PM roycroft: yes
01:07 PM roycroft: clearcutting, however, does not
01:07 PM jesseg: oh sorry wrong link
01:07 PM mozmck: Well, It's bound to at first - nothing to burn!
01:07 PM jesseg: this is the one I got: https://www.ebay.com/itm/232809613789
01:07 PM roycroft: and then all the erosion happens
01:07 PM gloops: the fire here is only heather, it will grow back, they burn it anyway in strip rotation, to renew it
01:08 PM roycroft: and we get massive mudslides and floods
01:08 PM gloops: i dont know why theyre fussing over it being on fire
01:08 PM roycroft: and then topsoil is all gone and nothing can grow for decaces
01:08 PM roycroft: because it's huge, gloops
01:08 PM mozmck: Yeah, I'm not a fan of clearcutting everything.
01:08 PM roycroft: rule of thumb:
01:08 PM roycroft: if you can see the fire from space, it's a big fire
01:09 PM roycroft: and that fire in the moors can be seen from space
01:09 PM gloops: a lot of small mammals will be dying though
01:12 PM gloops: the looks a grand old tool jesseg
01:12 PM gloops: rivet gun?
01:13 PM Wolf__: hole punch
01:15 PM Wolf__: https://www.ebay.com/itm/280613103258 what they look like made of shiny chinesium
01:16 PM roycroft: i could use a metric sheet metal punch
01:16 PM gloops: probably some slack in that
01:16 PM roycroft: i have an american customary punch that is similar to that
01:16 PM gloops: wont last 5 minutes
01:16 PM roycroft: i don't use it a lot
01:17 PM roycroft: but it seems to work just fine
01:17 PM roycroft: the coating on the handles is the exact same color as that metric one
01:17 PM roycroft: and the case is the same size, shape, and color
01:17 PM roycroft: so they're probably identical, except for the dies
01:18 PM roycroft: oh, actually that one claims to be american customary
01:18 PM roycroft: i saw the metric markings on the case - those are probably metric "equivalents" (read: approximations)
01:20 PM jesseg: gloops, yeah my dad has an old whitney Jr no 5 sort of like that one but older.. I'm always borrowing it but it's a pain because I have to go to his place to get it so it's not handy, so I figured I'd better just man up and get my own :P
02:22 PM CaptHindsight: http://money.cnn.com/2018/06/27/news/co2-shortage-uk-beer/index.html
02:24 PM gloops: and that is some beer swilling
02:24 PM CaptHindsight: how truthy is this story ^^
02:24 PM gloops: seems true its all over the media
02:25 PM CaptHindsight: might be a bump in nitrogen prices next
02:25 PM gloops: good world cup results + heatwave
02:27 PM CaptHindsight: maybe you can get some from the Germans
02:27 PM CaptHindsight: after they finish drowning their sorrows
02:27 PM Tom_L: they'll just sell more beer cause everybody will panic and rush the stores
02:28 PM CaptHindsight: when you look into the backstory the blame seems to be an artificial shortage caused by CO2 makers
02:28 PM Tom_L: like the 70's gas shortage?
02:28 PM CaptHindsight: yup
02:29 PM CaptHindsight: still plenty of oil, they just lower production and call it a shortage
02:29 PM CaptHindsight: nice trick
02:29 PM gloops: its the girls that do it - https://www.youtube.com/watch?v=J-SQfMQnTpk
02:30 PM CaptHindsight: "Several major ammonia plants in Europe have closed for maintenance, leading to a shortage of carbon dioxide. "
02:30 PM gloops: yes a likely story CaptHindsight
02:30 PM gloops: i can see its started already with the EU - cutting the beer off
02:31 PM Tom_L: damn, i wouldnt' try to keep up with her
02:32 PM Tom_L: wonder what else she swallows
02:32 PM gloops: could be an expensive night
02:37 PM gloops: 5 in 50 seconds https://www.youtube.com/watch?v=pZLk0br5el4
02:37 PM gloops: had to pause though...
02:38 PM Lcvette: any of you using touch problem and screens?
02:39 PM CaptHindsight: touch problem? problems with touch screens?
02:40 PM CaptHindsight: 1-point or with multitouch?
02:45 PM Lcvette: probe
02:45 PM Lcvette: sorry, auto correct
02:47 PM Lcvette: trying to make Linuxcnc similar in we as what I became accustomed to, or similar
02:47 PM Lcvette: using a problem for work offset setting
02:48 PM Lcvette: probe
02:49 PM Lcvette: my old system used a master tool method, where once the probe zeroed the work piece origin, it was ready to cut
02:51 PM cradek: I do tool lengths that way on my vmc
02:51 PM cradek: the tool table is the difference in length between the probe and that tool
02:51 PM Lcvette: yeah?
02:52 PM Lcvette: so do you have an actual physical tool length and a master too offer length?
02:52 PM Lcvette: offset
02:52 PM Lcvette: or you use the probe as your gauge length
02:53 PM Simonious_: .07
02:53 PM Simonious_: 4.07
02:53 PM cradek: I measure tool length to a fixture (actually a 123 block) on the table
02:53 PM Simonious_: also.. kicad doesn't like to let go of the mouse
02:54 PM cradek: use the probe to set the origin of a coordinate system (g59.3) to Z=0 when it touches the 123 block
02:54 PM Simonious_: and when it does.. it only half does much of the time, resulting in my project scrolling off the side of the screen while I am in a different window.
02:54 PM cradek: then use touchy's setting "tool touch off to fixture"
02:54 PM Simonious_: so many gotchas :/
02:54 PM Simonious_: at least it beats Eagle, right? :P
02:55 PM cradek: who cares what the numbers are, as long as the tools and probe match
02:55 PM Lcvette: right
02:56 PM Lcvette: but if the tlos are set to the probe and you ever change a tip.. have to remeasure you're tool crib
02:57 PM cradek: the "tool touch off to fixture" just runs G10 L11 http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g10-l11
02:57 PM cradek: sure, I suppose that's true, but I don't ever break my probe :-)
02:58 PM Lcvette: I rarely do either
02:58 PM Lcvette: but it happens every once in a while
02:59 PM Lcvette: or it needs a recalibration
02:59 PM Lcvette: if it does, that's a big delay in work
03:00 PM cradek: with a good fast tool changer, touching off all the tools just takes a couple minutes
03:00 PM cradek: I go down near the 123 block and then turn the wheel upward until a dowel pin rolls under the tool
03:00 PM cradek: then poke the button on the screen
03:00 PM cradek: takes 5 seconds
03:02 PM Lcvette: the way I used to do it was very good and simple and very easy to add tools or perform maintenance
03:02 PM Lcvette: I wonder if it could be implemented
03:03 PM cradek: once you read and understand the docs for G10L10 and G10L11 you'll be able to do it whatever way you want
03:04 PM fragalot: miss0rhi:
03:04 PM fragalot: ._. hi*
03:05 PM emc_ is now known as JT-Shop-2
03:05 PM JT-Shop-2: I use the same method cradek taught me years ago with the dowel
03:05 PM cradek: I learned it from stuart
03:06 PM cradek: wonder where he got it
03:06 PM fragalot: from a finnish cookbook that came out in the 1960's
03:07 PM JT-Shop: 21 second video showing tool touch off https://www.youtube.com/watch?v=VmRUJk0ptN4
03:08 PM fragalot: interesting
03:08 PM fragalot: don't you damage the cutting edge doing that on endmills?
03:08 PM cradek: that's why you go up
03:08 PM fragalot: might still microscopically roll the edge
03:08 PM Lcvette: I prefer offline measuring
03:09 PM fragalot: Lcvette: assuming that is possible and your toolholder system is repeatable
03:10 PM cradek: because the dowel is round, as you get closer to it passing under, it becomes much more sensitive
03:10 PM cradek: JT-Shop: the next video is 3m55s with some joker screwing around with a piece of paper and editing numbers on a screen
03:11 PM cradek: I'm sure he's a pleasant and good-looking guy but he should watch your video :-)
03:11 PM Lcvette: you mean for like an er spindle?
03:13 PM fragalot: ER or R8 etc
03:13 PM Lcvette: yeah I had not thought about it until now but I guess the message boards would take a simple touch plate type touch of
03:14 PM Lcvette: R8 just use TTS
03:14 PM fragalot: if your mill is rigid enough to deal with the extra stickout
03:16 PM Lcvette: you have R8?
03:16 PM fragalot: iso30
03:17 PM Lcvette: that should be repeatable
03:18 PM fragalot: i'm not saying mine isn't, i'm just saying that not everyone has a true repeatble system, like ER spindles that you mentioned
03:18 PM fragalot: also - iso30 is ridiculously expensive compared to iso40 :P
03:19 PM Lcvette: for those they sold have an auto touch off after every tool change
03:19 PM Lcvette: solves that problem
03:19 PM fragalot: yup
03:19 PM Lcvette: I am looking for a repeatable tool crib solution
03:20 PM fragalot: the dowel method is still nice to know though for use on manual machines
03:20 PM fragalot: imho
03:20 PM Lcvette: sure
03:20 PM Lcvette: good knowledge
03:21 PM fragalot: what's wrong with offline measure / electronic touch-off for tool cribs?
03:22 PM Lcvette: just trying to figure out how to use the probe setup
03:22 PM Lcvette: I'm only used to what I know from machstdmill
03:22 PM Lcvette: which is the master tool method
03:24 PM Lcvette: but I definitely would want to have to remeasure or have to remember to remeasure 140 tools if I broke a probe tip
03:24 PM Lcvette: even if it only happened once a year
03:24 PM Lcvette: would not be a good day
03:24 PM fragalot: does your probe not have it's own machine offset?
03:24 PM fragalot: which you could re-measure off of a known reference surface
03:25 PM Lcvette: t that's what I'm unsure of in linuxcnc
03:30 PM Lcvette: it looks like maybe g43.2 could be used to create a master too mode in the past processor maybe
03:32 PM cradek: of course you could use a tool offset with your probe
03:32 PM Lcvette: http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g43.2
03:32 PM cradek: I just prefer not to
03:32 PM cradek: something should be the zero offset
03:33 PM Lcvette: generally that is the spindle gauge line
03:33 PM Lcvette: a non moving target
03:33 PM cradek: that's fine, but you can't touch it to your work
03:34 PM fragalot: that's why your probe with a known offset from the spindle face touches your work
03:34 PM Lcvette: correct
03:34 PM * cradek shrugs
03:34 PM cradek: you can do all these things, you just have to pick a way
03:35 PM Lcvette: that's the way I've been doing it, it works well because I can replace a tool or a probe tip and recalculate all length offsets without remeasuring everything
03:36 PM Lcvette: single point of failure won't bring down the house so to speak
03:37 PM Lcvette: because both the tools and probe are calculated from the non moving spindle gauge line
03:38 PM cradek: cool
03:39 PM Lcvette: I didn't invent it
03:39 PM Lcvette: lol
03:40 PM gregcnc: wouldn't you just find the new length offset for the probe and carry on?
03:41 PM andypugh: I tried screen-printing for the first time today.
03:42 PM Lcvette: if that how it works in linuxcnc probing
03:42 PM cradek: andypugh: that car is ridiculous and I want a CRT dash like that now
03:42 PM andypugh: You can have one for £30,000 (I did look)
03:42 PM cradek: I have a whole mess of 2" green crts
03:42 PM cradek: I could use one for each replacement gauge
03:43 PM andypugh: I thought that re-doing the scan generators in digital would be a good project, and would make things much better.
03:43 PM Rab: cradek, round or square?
03:43 PM cradek: they're square
03:43 PM Rab: neat
03:44 PM cradek: somewhere I have several of the tiny camcorder viewfinders too
03:44 PM cradek: they're super sharp
03:45 PM Rab: A friend of mine has a thing that's like an 8-channel rackmount signal monitor of some type, with eight little square CRTs. Just waiting for some awesome application.
03:45 PM cradek: sweet
03:46 PM andypugh: cradek: Sounds like a clock….
03:46 PM andypugh: This is what I was screen-printing: https://photos.app.goo.gl/KuPakJ2HUtcGB4mXA
03:47 PM hazzy-lab: andypugh: That screen printing looks awesome!
03:47 PM cradek: neato
03:47 PM Rab: andypugh, very nice!
03:48 PM andypugh: (That’s only a subset of the supported feedback types, by the way. I ran out of room)
03:48 PM Rab: andypugh, is this commercially available (or planned to be)?
03:49 PM andypugh: I am not sure. Not from me. It’s open-source hardware, though, so batches get ordered every now and again.
03:50 PM hazzy-lab: andypugh: how much for the screen printed case option??? :D
03:51 PM andypugh: Free option. Plain or printed.
03:51 PM andypugh: (But I might not send the best prints :-)
03:53 PM hazzy-lab: That is certainly a value added service!
03:54 PM hazzy-lab: BTW, are the cases waterjeted? They look great
03:55 PM andypugh: Lasered. deanforbes_ had them made. £3 each
03:55 PM roycroft: do you print while it's still flat, or after it's folded up?
03:55 PM andypugh: A nice feature of the hand-fold design is that they can be painted and printed flat, and shipped flat too.
03:55 PM roycroft: oh, that's hand-folded
03:56 PM andypugh: Yes, the little webs make it pretty easy. Neat idea.
03:56 PM roycroft: yeah
04:00 PM Deejay: gn8
04:10 PM JT-Shop: andypugh: cool
04:44 PM Lcvette: Andy that's awesome!
04:48 PM Lcvette: is that a servo drive?
04:50 PM andypugh: Yes, follow the URL on the top to get all the details :-)
04:51 PM Tom_L: nice print andy
04:52 PM Tom_L: what paint did you use?
04:52 PM Tom_L: i used UV curable when i was making my programmers
04:52 PM andypugh: Just the basic water-based ink that came with the kit from Amazon
04:52 PM Tom_L: nice
04:53 PM andypugh: I tried to wash a bad print off, it wouldn’t come off. Even when not fully cured.
04:53 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/USBTiny_Mkii/silkscreen/silk_batch_cure.jpg
04:53 PM Tom_L: there's a batch under fire
04:53 PM Tom_L: i had no kit though
04:54 PM andypugh: Just this: https://www.amazon.co.uk/gp/product/B0785R9DZV/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
04:54 PM andypugh: And I have _loads_ of photo-sensitive goop left.
04:54 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/USBTiny_Mkii/silkscreen/silk_batch.jpg
04:55 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/USBTiny_Mkii/silkscreen/lid_cutout1.jpg
04:55 PM Tom_L: i cnc'd a cutout for the lids
04:55 PM Tom_L: yeah you don't use much goop for sure
04:56 PM Tom_L: i got the screen from a local blueprint shop
04:56 PM Tom_L: made the frame
04:57 PM Tom_L: those drives look interesting
04:59 PM Tom_L: did you make the case?
05:05 PM andypugh: deanforbes_: Made the cases from a design by Crinq (from the STMBL project)
05:20 PM Lcvette: are you selling these?
05:21 PM andypugh: I had a batch made, and pre-sold them before ordering.
05:21 PM Tom_L: cost?
05:22 PM andypugh: £88 each
05:24 PM Tom_L: that's not bad at all
05:24 PM andypugh: (In kit form)
05:24 PM Tom_L: doing any assembled?
05:25 PM Lcvette: kit form
05:25 PM andypugh: No. Though the kit already has all the surface mount components and connectors: http://bodgesoc.blogspot.com/2018/05/STMBL.html
05:27 PM Tom_L: those came from laen's board service... forget what he calls it
05:27 PM Tom_L: the purple is a dead giveaway
05:27 PM andypugh: No, actually from China. I just chose purple.
05:27 PM Tom_L: really..
05:27 PM Tom_L: i think he went with purple so he could track where his boards end up
05:28 PM andypugh: https://www.pcbastore.com
05:29 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/atmega32u4/atmega32U4_3.jpg
05:29 PM Tom_L: that was his first rendition of 'purple'
05:29 PM Tom_L: more brown than anything
05:30 PM Tom_L: he ended up with more what you've got
05:31 PM andypugh: I didn’t want to use China really. But £47 per board, assembled, including all the surface-mount parts and connectors…
05:32 PM Tom_L: hard to beat for prices
05:33 PM Tom_itx: https://www.dorkbotpdx.org/wiki/pcb_order
05:33 PM Tom_L: i think that's his site
05:35 PM Tom_itx: https://oshpark.com/
05:35 PM Tom_L: no, that is.
05:37 PM Tom_L: pretty sure he uses a US Mfg
05:38 PM andypugh: Yeah. OSHPark is no good to me. Shipping from the US is a killer compared to China.
05:38 PM Tom_L: yeah i'm sure it would be
05:38 PM Tom_L: another one doning the same thing is #hackvana (Mitch)
05:38 PM andypugh: Though it might have saved some bother with the regulator chip used on STMBL, it was (incorrectly) tagged as export-restricted.
05:38 PM Tom_L: he's an aussie
05:40 PM Tom_L: he was commuting back n forth to china back then, not sure if he still is
06:14 PM Lcvette: how do those drives work Andy?
06:14 PM Lcvette: perform taker
06:14 PM Lcvette: rather*
06:19 PM JT-Shop-2: it's past midnight for andypugh...
06:20 PM andypugh: I am still here, though.
06:21 PM andypugh: Have a look at the showcase on the LinuxCNC front page
06:21 PM JT-Shop-2: you're a trooper for sure
06:22 PM JT-Shop-2: that's a beast
06:23 PM JT-Shop-2: time to turn my hat round to the chef side
07:03 PM Lcvette: Andy that's pretty cool!
07:07 PM andypugh: Yes, I am quite impressed. I take no credit for any part of STMBL
07:08 PM andypugh: I just decided I wanted some and found that the only way to make that happen at the time was to have a batch made
07:09 PM andypugh: (I have done a bit of work on the LinuxCNC driver side. They integrate really neatly when hooked in to the Mesa Smart-Serial bus)
07:15 PM andypugh: This is what the HAL looks like to connect up an STMBL through smart-serial: https://pastebin.ubuntu.com/p/mcCBKHtvRc/
07:39 PM Lcvette: sweet! guessing they tune up nice?
07:42 PM andypugh: You can tune them using Servoterm (like their own version of Halscope, which is actually a Chrome app) but it isn’t normally necessary once you have programmed the drive with the motor parameters (including torque constants and inertias. There are ways to use the drive to measure those.)
07:46 PM Lcvette: gotcha
07:46 PM Lcvette: my next set of drives will be self tuning lol
07:47 PM Lcvette: I would love to be able to replace just my drives but every where I spoke to said their drives are motor specific
07:50 PM Lcvette: DMM said they could replace the encoders on my motors
07:52 PM pcw_mesa: There may still be a way to fix the tuning/encoder sim issues on your drives
07:53 PM pfred1: do you know the way?
07:54 PM Lcvette: pcw_mesa: I don't think there are any more settings in the drive to tweak
07:54 PM Lcvette: what did you have in mind
07:54 PM pcw_mesa: perhaps doing what is done with linear scales would work ( dual PID loops ) mainly stepgen control but with a low bandwidth encoder feedback (I only or small P large I)
07:55 PM Lcvette: yeah?
07:55 PM pcw_mesa: since the FF1 error fix is slow (limited by acceleration)
07:56 PM pcw_mesa: wont improve the jerk bumps (that just drive bandwidth limited) but should fix any feedback noise
07:57 PM pcw_mesa: bbl Dinner!
07:57 PM Lcvette: very interesting!!
07:57 PM Lcvette: ok enjoy
07:57 PM Lcvette: very interested and excited at this new idea!
07:57 PM Lcvette: new hope
08:06 PM Lcvette: pcw_mesa: I went back and was looking at the PID loop tune for the stepgen and it actually had the same jerk points as the encoder feedback loop
09:25 PM pcw_home: Lcvette: yes those are mostly determined by the drive bandwidth which will not change (unless you change the filtering)
09:27 PM Lcvette: I don't think I fully understand how those all for together yet
09:27 PM Lcvette: I know more bandwidth is good
09:27 PM roycroft: bandwidth is overrated
09:27 PM Lcvette: is that the 500kpps?
09:28 PM roycroft: patience is a virtue :)
09:39 PM Laminae: Hey amigos i'm back from the dead and here to shamelessly ask for suggestions... i'm wanting to switch to extrusion on my cbeam machine XL and have been looking at what other have done and found that Misumi produces a really cool option for 15mmx250mmx1000mm which is nearly ideal for my purposes
09:39 PM Laminae: Here is an imagine of my quick and dirty concept: https://imgur.com/a/LmFTyta
09:40 PM Laminae: And i'm looking at using these two parts: https://us.misumi-ec.com/vona2/detail/110302261820/?ProductCode=HFSQN4-15250-900&curSearch=%7b%22field%22%3a%22%40search%22%2c%22seriesCode%22%3a%22110302261820%22%2c%22innerCode%22%3a%22%22%2c%22sort%22%3a1%2c%22specSortFlag%22%3a0%2c%22allSpecFlag%22%3a0%2c%22page%22%3a1%2c%22pageSize%22%3a%2260%22%2c%2200000332837%22%3a%22900%22%2c%22cadType%22%3a%222%22%2c%22fixedInfo%22%3a%22MDM0000130
09:40 PM Laminae: https://us.misumi-ec.com/vona2/detail/110300544970/?ProductCode=CASA2.5-2020-500
09:41 PM Laminae: So my ultimate question... do you think the tolerances are too close to slide those u-extrusions over that?
09:41 PM Laminae: I decided to go ahead and shoot misumi the same question and here is the response i received: You: hello, Would the tolerance be too tight to fit a CASA2.5-2020-500 (U-extrusion) over the butt ends of HFSQN4-15250-900 (t-slot) i am intending to make a cnc router bed and was intending on tapping the ends and securing through the u-slot but was anxious about the stated tolerance variance. Bob: Hello, My name is Bob. How can I help yo
09:42 PM Laminae: You: Awesome, thank you Bob: I'm seeing that the A tolerance for the U channel is +/- 0.38 mm where the size for the flat extrusion is +/- 0.3 mm. There's a chance it would work, but you'd really be rolling the dice. There wouldn't be any way we could guarantee it
09:49 PM pcw_home: Lcvette: no, it is the frequency response of the drive/motor/mechanics, usually in the hundred Hz range on heavy CNC machines
09:53 PM Lcvette: ah
09:59 PM pcw_home: it would also be less of an issue if LinuxCNC has a Jerk limited trajectory planner though for a lot of precision machining operations its not really an issue since you try to maintain a constant feed rate where there's no tangential acceleration
10:00 PM pcw_home: s/has/had/
10:32 PM Lcvette: the drive has some features in it for acceleration
10:32 PM Lcvette: trapezoidal and s curve settings
10:33 PM Lcvette: would those be helpful?
10:37 PM pcw_home: No, those are really only useful if the drive does the trajectory planning
10:37 PM Kevin`: Laminae: I suspct a hammer could make it fit - one way or the other. none of that assembly is intended to be precise, right?
10:37 PM Lcvette: gotcha
10:37 PM Kevin`: Laminae: also, it's helpful to have access to the ends of the slots
10:38 PM pcw_home: I suspect you could reduce ringing from excessive jerk by using the drives jerk limiting but it would increase the peak error
10:39 PM Laminae: Heh, had to argue with that!
10:40 PM pcw_home: But as I mentioned, that error is probably not very significant for most real tasks
10:40 PM Laminae: My alternative thought was to take one 1/4 in piece of 6061 (flat) and cut it so i could still access the extrusions and bolt to the holes though that
10:41 PM Laminae: The downside was that it would have to be much bigger have less torsional rigidity and be a whole lot more work
10:45 PM renesis: but 6061 is sexy
11:01 PM circ-user-mqaAl: hi
11:01 PM circ-user-mqaAl: how can I connect the the for linuxcnc
11:02 PM circ-user-mqaAl: thc
11:04 PM nallar is now known as Ross
11:10 PM circ-user-mqaAl: sorry
11:11 PM circ-user-mqaAl: anybody there?