#linuxcnc Logs

Nov 08 2021

#linuxcnc Calendar

01:40 AM Deejay: moin
01:57 AM randy: morning
04:15 AM JT-Cave: morning
04:19 AM Tom_L: morning
04:19 AM Tom_L: ur up earlier
04:22 AM Tom_L: sunny & 71F today
05:35 AM JT-Cave: forgot to change the clock next to the bed lol
05:35 AM XXCoder: lol
05:52 AM JT-Cave: for some reason I thought it was the kind to phone home and self adjust...
05:53 AM XXCoder: my bed clock sadly is too old design to
05:53 AM XXCoder: i still have now kinda broken orginial, and its over 30 years old. my new one, 4 years old, is exact same design
05:54 AM XXCoder: actually, slightly less than 30 but yeah quite old
09:09 AM -!- #linuxcnc mode set to +v by ChanServ
09:32 AM unterhausen: huh, my watch time is off an hour. Definitely thought it would phone home.
09:39 AM roycroft[m]: I have an IP radio in my bedroom. Sunday morning the alarm went off an hour early. Then, as soon as the radio turned on, the device's clock set the time back an hour. I guess it uses NTP to keep the clock accurate, but only checks when it's turned on.
10:36 AM aaroncnc: roycroft[m], ouch that would be annoying. you would think it might check for a time update before the alarm is set off.
10:39 AM roycroft: It was odd, to be sure, and somehow I did not notice it before - I've had it for over a year now so this is at least the third time it's happened
12:27 PM * JT-Shop goes on the hunt for a 100mm 12vdc fan for the BP power supply or another power supply
12:28 PM roycroft: it can be hard to find good quality fans like that
12:31 PM roycroft: I got some for an equipment rack a few years ago made by AC Infinity, and they have worked great - good airflow, and very reliable - but they are 120VAC
12:32 PM roycroft: AC Infinity have several AC fans, and some "USB" fans - I don't know whether those would be useful or not
12:33 PM roycroft: 100mm can be hard to find though - 92mm and 120mm are much more common
12:37 PM perry_j1987_: just cut the 120mm down
12:37 PM perry_j1987_: done
12:41 PM aaroncnc: Yea if its one thing i cant stand its cheap fans. all my cheap china PSU units needed to get new ones. For the most part now tho i switched to ATX psus for things. just about the same price and seem to be built better. and micro center sells them, so i can pick up 4 or 5 quickly.
12:51 PM roycroft: the 92mm fans can easily be adapted to fit a 100mm opening
12:53 PM roycroft: Good fans are hard to come by - many of the mass-market ones just have wafa thin bushings instead of proper ball bearings, and usually last a few months at most
01:03 PM JT-Shop: power supply is dead as well I think on the 12v plug... micro atx power supplies are a bit hard to find
01:03 PM * JT-Shop goes to harvest a power supply from a tower case
01:24 PM aaroncnc: any advantage to having the PID variables saved in the ini vs the hal itself?
01:26 PM Tom_L: not to my knowledge
01:38 PM JT-Shop: some folks think that all variables should be in an ini file but I don't
01:40 PM Tom_L: so i took A out of the homing loop and added a button on the side with G10 L20 to home it where it stands
01:41 PM Tom_L: suitable solution for me anyway
01:42 PM aaroncnc: is it considered best practice to put it in the ini? I am making the config tool for remora with this as a feature but i have always done it in HAL but i have seen others who have used the ini.
01:42 PM roycroft: I've been studying and thinking about the Shaper Origin a lot more, and I'm coming to the conclusion that building the CNC router as I originally planned is probably my wisest course of action right now
01:42 PM JT-Shop: ah there is one advantage, you and use the tuning tool if the values are in the ini
01:43 PM * JT-Shop tries another micro atx mother board to see if the pci error goes away
01:43 PM aaroncnc: JT-Shop, got a link to that tool?
01:43 PM * Tom_L thinks roy has been on the fence about this quite a while
01:43 PM roycroft: It will save money, and I keep having thoughts about small production run products that I can quickly, easily, and cheaply make with a CNC router that would provide some bread and butter revenue for me
01:43 PM aaroncnc: then i think that decides it i will add the values into the ini.
01:43 PM roycroft: I haven't even built it yet but I'm already thinking of expanding its intended use
01:46 PM aaroncnc: in my journey of machines i hav always started small and gotten bigger of the years, I feel like i should just expand a machine to take the entire garage so maybe this addiction will stop.
01:46 PM Tom_L: no
01:46 PM Tom_L: you will just want a bigger garage
01:47 PM JT-Shop: well if this don't work it must be the 5i25... wonder where I can get one?
01:47 PM Tom_L: i heard about this guy that lives in a swamp...
01:47 PM roycroft: Well I'm kind of going the opposite way - I was planning on building a 2'x4' CNC router, but then started thinking about getting the Shaper Origin instead
01:48 PM roycroft: If I decide that using an rpi as a linuxcnc machine works out well, I may have an unused 5i25 for sale
01:49 PM roycroft: I won't be making any determination like that for a while, though.
02:08 PM -!- #linuxcnc mode set to +v by ChanServ
02:12 PM JT-Shop: hmm I can readhmid on the 5i25 so both mini atx motherboards are toast :(
02:14 PM Tom_L: you're kinda hard on pc equipment lately
02:27 PM CaptHindsight[m]: use LCNC to make your own vision based handheld router
02:27 PM perry_j1987_: vison based router on one of those maslow setups heh
02:28 PM perry_j1987_: jsut hang on the shop wall
02:28 PM CaptHindsight[m]: it is simple using a pre-printed alignment mask
02:28 PM CaptHindsight[m]: too weeny for me
02:29 PM CaptHindsight[m]: I wannah route 2" thick oak
02:29 PM CaptHindsight[m]: but kidding aside
02:29 PM CaptHindsight[m]: a clear film with alignment marks with a PSA on one side
02:29 PM CaptHindsight[m]: easy and cheap to make
02:30 PM CaptHindsight[m]: one can have rolls printer 48" wide
02:30 PM CaptHindsight[m]: cover a whole sheet of wood
02:31 PM CaptHindsight[m]: the image processing is trivial nowdays
02:32 PM CaptHindsight[m]: a similar project came up on the forums to build a large robot plasma cutter
02:32 PM CaptHindsight[m]: 3 x 5 meters for steel plate
02:35 PM CaptHindsight[m]: you just need some type of alignment grid to guide the cuts
02:36 PM CaptHindsight[m]: could be printed paper with adhesive on one side
02:36 PM CaptHindsight[m]: could even be projected onto the materials from above
02:37 PM CaptHindsight[m]: or if the camera faces up, opposite the cutting surface the alignment grid can be above the router
02:45 PM JT-Shop: just canceled the order for the micro atx power supply...
02:50 PM roycroft: i'm not building a cnc router as an excuse to use linuxcnc
02:50 PM CaptHindsight[m]: aaroncnc: thanks for working on the Remora config tool
02:50 PM roycroft: that may be sacreligous to say here, but the router is the primary goal, not the linuxcnc
02:52 PM CaptHindsight[m]: Roomba as a router
02:52 PM aaroncnc: CaptHindsight[m], Thanks still got more to do. hoping this week to have the encoders setup to a joint and to have PID integration for the PWM outputs
02:54 PM CaptHindsight[m]: aaroncnc: how are you handling connections from signals to physical pins on the STM32 boards? or is that another project?
02:56 PM aaroncnc: CaptHindsight[m], are you asking how in the tool to define what pins the signal is linked to?
02:56 PM roycroft: those maslow routers are not very accurate or repeatable, from what i've gathered
02:56 PM roycroft: and i have no wall space anyway
02:57 PM CaptHindsight[m]: aaroncnc: yes, so one may change the config for current boards and when new STM32 come along
02:59 PM CaptHindsight[m]: maslow routers rely on their mass for stability, if you make them a hundred or two Kg's heavier they would be more precise and repeatable
02:59 PM CaptHindsight[m]: another issue is just crap design and assembly
03:01 PM aaroncnc: CaptHindsight[m], I made it a bit to simple but it works for now. just a text box the user types what pin they want it connected to on the control board. So you would need something like this to know https://github.com/bigtreetech/BIGTREETECH-SKR-PRO-V1.1/blob/master/SKR-PRO-V1.2/manual/SKR-PRO-V1.2PIN.PDF
03:02 PM CaptHindsight[m]: aaroncnc: I can look at your source
03:03 PM aaroncnc: an example is. in hal i tell it that the home switch is connected to remora.input.1 Then on the board there is a config file that setup the main board that input 1 is connected to pin "XXX"
03:04 PM aaroncnc: alpha config had the ini and hal part. https://github.com/aaroncnc/Remora-GUI-Config-Tool/tree/alpha-config
03:04 PM * JT-Shop makes a low profile serial bracket so he can close up the case on the pc
03:04 PM CaptHindsight[m]: routing from physical board pin to the STM32 is set by the PCB, but inside the STM32's one may use different counters or IO blocks
03:07 PM CaptHindsight[m]: maybe that part is hard coded in remora
03:07 PM CaptHindsight[m]: I haven't looked
03:07 PM aaroncnc: CaptHindsight[m], that would be past my config tool. i only connect the levers exposed by remora to HAL
03:08 PM aaroncnc: CaptHindsight[m], correct you would need to dive into remora to see how that is done.
03:28 PM CaptHindsight[m]: I bet I can use patterned wallpaper to make a better hand held router
03:32 PM t4nk_freenode: mmm, may plug in a few more wires tonight.. haven't touched Remora in a while now
03:33 PM t4nk_freenode: but I'd like to get rid of the sd card first
03:34 PM t4nk_freenode: with the sd card it frees up.. I might try that 'klipper' thing you mentioned, CaptHindsight[m]
03:34 PM t4nk_freenode: looks nice
03:34 PM CaptHindsight[m]: t4nk_freenode: that is GRBL firmware
03:34 PM t4nk_freenode: it is??
03:34 PM CaptHindsight[m]: i think you want remora
03:35 PM CaptHindsight[m]: I just posted that for reference and comparison for step rates on stm32
03:35 PM t4nk_freenode: euh, yeah, sure.... klipper seems to be focused on 3d printers only I believe
03:35 PM t4nk_freenode: yeah, I know
03:35 PM CaptHindsight[m]: people build routers with it as well
03:36 PM CaptHindsight[m]: and aaroncnc is making it much easier to use Remora
03:37 PM t4nk_freenode: still haven't looked at the code of remora, but I'd say there's a pretty good bet that the slow operation you mentioned.. is due to logical errors somewhere
03:37 PM CaptHindsight[m]: 54 in wide patterned wall paper https://www.wallpaperboulevard.com/product/dedar-38803.aspx
03:37 PM t4nk_freenode: mmm, I don't care too much about configuration tools.. I'm not going to use the config.txt anyhow
03:37 PM t4nk_freenode: euh
03:37 PM t4nk_freenode: though i do need to configure of course
03:39 PM CaptHindsight[m]: out to see sun before its down, I think my body clock is off by 8-12 hours right now
03:39 PM aaroncnc: CaptHindsight[m], i think remora is a perfect bridge to get people who use 3d printers and RPI's to make a leap into linux cnc. they know the hardware but hear "linuxcnc" and think scarry but hear raspbian and think of i know that its not scary. Just need to make it easy to setup.
03:39 PM t4nk_freenode: I like it, aaroncnc
03:41 PM t4nk_freenode: I just ran linuxcnc for a little bit, and only with one stepper attached... but I saw a whole bunch of options that aren't present in grbl software
03:41 PM t4nk_freenode: not necessarily impossible to put into grbl software, but it just isn't there
03:42 PM t4nk_freenode: like homing separate axes and such
03:42 PM CaptHindsight[m]: yeah, LCNC is like a big swiss army knife
03:43 PM CaptHindsight[m]: just use what you need and forget the rest vs have to write more code to do what you need
03:43 PM aaroncnc: t4nk_freenode, replace eve online with linuxcnc https://i.imgur.com/zzkTtD6.png
03:43 PM CaptHindsight[m]: always seemed like a no brainer, but ...... reprap
03:45 PM aaroncnc: one thing i have always thought that made linuxcnc look bad was the default GUI axis. when people come from mach3/4 and they see axis they are like what? where is all the cool things i have seen? was this made on windows 95? then they go back to mach3/4 or whatever they used before.
03:46 PM t4nk_freenode: oh... and ... when I hit 'run' to execute the gcode.. it told me I wasn't allowed to run it without homing ;) lol, that saves a lot of damage I guess
03:46 PM aaroncnc: thats not to say mach3 had a great gui. or no bugs
03:55 PM t4nk_freenode: I'm not sure how a double y-axis would work in linuxcnc though
03:56 PM JT-Shop: double as in two motors or two y axes
03:56 PM t4nk_freenode: when I was homing with grbl, I nearly always had to secretly give one leadscrew an extra twist or it wouldn't retgister
03:56 PM t4nk_freenode: two motors, two leadscrews
03:56 PM roycroft: you use joints, t4nk_freenode
03:57 PM roycroft: i'm assuming you're designing a gantry machine
03:57 PM t4nk_freenode: so one axis is called y, and the other a?
03:57 PM t4nk_freenode: yes, it's a gantry
03:57 PM JT-Shop: you can have 4 motors on one axis and it will home perfectly
03:57 PM roycroft: no, you have two joints that work together that are the y axis
03:57 PM JT-Shop: or just two motors
03:57 PM roycroft: there's even a sample config bundled with linuxcnc for that
03:58 PM JT-Shop: to make a gantry home you need one thing "-"
03:58 PM JT-Shop: both joints will belong to the Y axis
03:59 PM aaroncnc: t4nk_freenode, you want each motor to have its own home switch that is indepent of the other right? so if it were tog et out of tram the homeing would fix it .
04:01 PM JT-Shop: Automation Direct announced a price increase on PLC's, Drives and a few other things
04:01 PM t4nk_freenode: I have switches on either side of each axis, one is a 'decent switch' for homing the others are limit switches I printed
04:01 PM t4nk_freenode: euh... not 'each axis', but each side of the axis of course
04:10 PM roycroft: in linuxcnc speak they're called "joints"
04:10 PM roycroft: start thinking of them that way
04:10 PM roycroft: your x and z will likely be single joint axes, while y will be a two joint axis
04:12 PM Tom_L: 2.8
04:12 PM Tom_L: they changed dialects
04:12 PM roycroft: if you have a knee mill, and a motor drive on the spindle, your z may have two joints
04:13 PM roycroft: The "joint" terminology is only since 2.8?
04:13 PM roycroft: grr
04:13 PM Tom_L: yes i think so
04:14 PM roycroft: Windows is forcing an upgrade again, less than an hour before the end of the work day, and I need to use this Windows VM before I can quit for the day.
04:15 PM XXCoder: forced updates suck
04:15 PM XXCoder: you have hour of play time, you boot computer and theres updates and reboot which takes 2-3 hours
04:24 PM JT-Shop: I made this video 5+ years ago joint/axis gantry homing
04:24 PM JT-Shop: https://www.youtube.com/watch?v=1OtWNuLWfwc
04:31 PM roycroft: since i'm waiting for windows to do its upgrade thing i have a few minutes ,so i guess i can watch that video
04:32 PM roycroft: oh, it's only 24 seconds long
04:32 PM roycroft: i guess i have time anyway :)
04:32 PM XXCoder: lol
04:32 PM t4nk_freenode: hehe\
04:32 PM JT-Shop: doesn't take long to demonstrate gantry homing
04:33 PM JT-Shop: the second one is much better, no moving all about with the camera
04:33 PM * JT-Shop hunts for a mouse...
04:33 PM roycroft: so the question is: how do you align the joints in the first place?
04:33 PM roycroft: a big square and tap tap tapping the second joint's homing switch until it's acceptable?
04:54 PM JT-Shop: have one switch holder movable
04:56 PM JT-Shop: or have the trip adjustable like on my BP
04:58 PM flyback: JT-Cave, did you ever have any luck recovering anything?
04:59 PM JT-Shop: not a thing
04:59 PM flyback: :(
04:59 PM JT-Shop: it's ok
05:15 PM Tom_L: get another cat and let it find the mouse for ya
05:16 PM JT-Shop: I let the cats find me and a cat would not be interested in a usb mouse
05:17 PM Tom_L: oh not a live mouse :)
05:18 PM Tom_L: Back when a hoe was a hoe
05:18 PM Tom_L: Coke was a coke
05:18 PM Tom_L: And crack's what you were doing
05:18 PM Tom_L: When you were cracking jokes....
05:20 PM Tom_L: JT-Shop, you figure out any issues on your dividing head?
05:21 PM roycroft: and now that the work day is over, the windows vm finally came online
05:21 PM roycroft: can i bill microsoft for the overtime?
05:22 PM roycroft: oh, no, it's not back online yet
05:22 PM JT-Shop: when I was a kid coke in the 6 1/2 ounce bottle was 6₵ and the nearest coke machine was up front (a shopping strip thing) about a mile or more away...
05:22 PM roycroft: it just finished downloading stuff and rebooting
05:22 PM roycroft: now it's installing everything it downloaded
05:23 PM JT-Shop: I rode my bike up front to get a coke and had a nickel and a penny and the price had changed to 10₵
05:23 PM JT-Shop: I was so pissed it ain't funny
05:26 PM unterhausen: at my dad's work, those 6 oz cokes were a nickle
05:26 PM JT-Shop: hmm Wednesday mostly sunny and 69°F might have to ride over to River Ridge Winery and just take a day off
05:27 PM JT-Shop: that had to been in the early 60's for me
05:29 PM roycroft: it's going to rain here on wednesday, which is a bummer
05:29 PM roycroft: we
05:30 PM JT-Shop: https://www.google.com/maps/uv?pb=!1s0x8620b0a1de6094eb%3A0x95c0e4dcaef54073!3m1!7e115!4s%2Fmaps%2Fplace%2Fairline%2Bpark%2Bshopping%2Bcenter%2Bmetairie%2Bla%2F%4029.9779631%2C-90.2059345%2C3a%2C75y%2C85.99h%2C90t%2Fdata%3D*213m4*211e1*213m2*211sxQ5FDy5oW0Ow2gxZSZ6enw*212e0*214m2*213m1*211s0x8620b0a1de6094eb%3A0x95c0e4dcaef54073%3Fsa%3DX!5sairline%20park%20shopping%20center%20metairie%20la%20-%20Google%20Search!15sCgIgARICCAI&imagekey=!1e2!2sxQ5FDy5oW0Ow2gx
05:30 PM JT-Shop: ZSZ6enw&hl=en&sa=X&ved=2ahUKEwj2pcql8on0AhWelGoFHekpBL0Qpx96BAhHEAg
05:30 PM roycroft: were going to have sushi this wedneseday, but the sushi place we were going to does not have a tent outside
05:30 PM JT-Shop: woops
05:30 PM roycroft: just some tables with market umbrellas
05:30 PM roycroft: that's not going to work in the rain
05:30 PM roycroft: so there may be no sushi again until spring :(
05:31 PM JT-Shop: do they close for winter?
05:31 PM roycroft: no, but they don't have outdoor dining in the winter
05:32 PM roycroft: we don't dine indoors - it's not safe
05:32 PM roycroft: there are way too many unvaccinated nutjobs around here
05:32 PM JT-Shop: even after being vaccinated?
05:32 PM roycroft: i can still spread it
05:33 PM roycroft: i don't want to risk doing that
05:33 PM JT-Shop: https://www.google.com/maps/dir/29.9899346,-90.2073144/Airline+Park+Shopping+Center+Subway,+Metairie,+LA+70003/@29.9832067,-90.2091169,15z/data=!4m8!4m7!1m0!1m5!1m1!1s0x8620b0a1de6094eb:0x95c0e4dcaef54073!2m2!1d-90.2058982!2d29.9779653
05:33 PM JT-Shop: my house to airline park shopping center
05:33 PM roycroft: at some point i guess i'll not care any more about the anti-vaxer idiots
05:33 PM roycroft: but right now there are too many who aren't anti-vaxers - children between 5 and 12
05:33 PM JT-Shop: I suspect that once they are all gone the IQ of the world will rise
05:33 PM roycroft: they're just starting to get vaccinated
05:34 PM JT-Shop: children don't seem to have much reaction to catching it, my granddaughter just had a slight cough
05:35 PM XXCoder: https://youtu.be/ZFEjBtPOPNk pretty cool, hypotensis on how to build prymid. using wood parts and model
05:36 PM JT-Shop: lol I just noticed that when I clicked on Abadie street it picked up JB's house across the street we were 1612
05:36 PM roycroft: they still spread it
05:36 PM roycroft: and there have been some severe cases in children since the delta variant started spreading
05:37 PM JT-Shop: XXCoder, that map is where I lived in the second - fourth grade
05:37 PM roycroft: including children who have died
05:38 PM JT-Shop: a lot of people have died from covid
05:40 PM roycroft: yes, over 750,000 in this country alone
05:41 PM JT-Shop: hmm I though for minute that St. Mary Magdalen School was gone but zooming in it's still there
05:42 PM JT-Shop: https://www.google.com/maps/@29.9897433,-90.2074534,110m/data=!3m1!1e3
05:42 PM XXCoder: happy that theres vaccine approved for kids now
05:43 PM JT-Shop: time to tuck the chickens in and read them a bed time story
05:43 PM XXCoder: if i had kids they'd be vaccined now
05:43 PM JT-Shop: exactly
05:44 PM JT-Shop: I think Chicken Little will do https://en.wikipedia.org/wiki/Henny_Penny
05:51 PM * Tom_L dreamed up another section to add to the cam post
05:54 PM XXCoder: ugh
05:54 PM XXCoder: phone calls make my dizzyness worse
05:54 PM XXCoder: ASL in general makes my dizzyness worse
06:09 PM srk_ is now known as srk
06:48 PM CaptHindsight[m]: my rapid test was negative today
06:48 PM CaptHindsight[m]: been waiting to feel well before my booster and seasonal flu shot
06:53 PM XXCoder: roycroft: https://youtu.be/I6Ys7cSMjSY you might enjoy it
06:53 PM XXCoder: he made cnc router table by using cnc router
07:00 PM CaptHindsight[m]: https://goo.gl/maps/4Y1UF9X7z179iLPNA in my old neighborhood the residents go out to watch the gang fights inside the school yards on Saturdays
07:01 PM _unreal_: I made a cnc router by using my cnc router :)
07:09 PM _unreal_: God I realllllllly want to build a bigger cnc machine with these new sat parts. at home
07:09 PM _unreal_: my home machine works wonderful but GOD DAMN these new sat parts are very temptin g
07:09 PM _unreal_: sadly I dont have enough parts to build a frame nor do I have rail parts....
07:09 PM CaptHindsight[m]: roycroft: the guy behind me at the test site teaches at U of Iowa, he said there was a 70% spike there last month
07:10 PM XXCoder: :(
07:10 PM CaptHindsight[m]: and the usual, parties with no masks, sharing vapes, etc etc
07:10 PM CaptHindsight[m]: like a rep-router
07:11 PM _unreal_: CaptHindsight[m], why are you bothering with a flu shot. according to the CDC flue has been cured
07:11 PM _unreal_: cant argue with the # of reported cases. funny how the news wont report that fact.....
07:14 PM CaptHindsight[m]: reprout
07:14 PM linext: what type of end mill should be used to machine zinc so it doesn't gum up
07:14 PM CaptHindsight[m]: but pronounced Luxury Yacht, I mean rep route
07:14 PM CaptHindsight[m]: not re-prout
07:14 PM _unreal_: CaptHindsight[m], ?
07:14 PM _unreal_: linext, its more about RPM
07:15 PM _unreal_: FEEDS AND SPEEDS
07:15 PM Tom_L: chip load.
07:15 PM _unreal_: soft metals do not really need cooling unless your trying to mill them fast
07:16 PM _unreal_: ! why are you trying to mill zinc?
07:16 PM _unreal_: That does not compute
07:16 PM Tom_L: why are you asking why?
07:16 PM _unreal_: owhynot
07:16 PM _unreal_: :)
07:16 PM roycroft[m]: Thanks, xxcoder - I'll check it out
07:16 PM XXCoder: welcome
07:16 PM _unreal_: god this keyboard is really starting to fail
07:17 PM Tom_L: can't seem to fake my cam into 0 spindle speed
07:17 PM _unreal_: ?
07:17 PM Tom_L: i have a tool with zero spindle speed
07:17 PM _unreal_: cam as in software or picture?
07:17 PM Tom_L: cad cam
07:18 PM XXCoder: can you set it to any speed, then simply unplug spindle
07:18 PM Tom_L: why would i want to do that?
07:18 PM XXCoder: for 0 rpm tool?
07:18 PM Tom_L: that's the purpose of a cam post is to do what you want it to do
07:18 PM _unreal_: I think what he means is just disable power to the motor
07:18 PM XXCoder: true
07:18 PM Tom_L: i want no user intervention
07:18 PM _unreal_: waht kind of tool?
07:19 PM Tom_L: if i don't get it one way i will get it another
07:19 PM XXCoder: there would be some point where you forget so yeah makes sense
07:19 PM _unreal_: probe? drag knife?
07:19 PM Tom_L: dowel pin
07:19 PM Tom_L: for material locating
07:19 PM Tom_L: we used to do that all the time
07:19 PM Tom_L: vise part. dowel comes down, you load the material and clamp it and press go
07:19 PM XXCoder: i guess manual gcode edit would work also but yeah bit more work than just setup on cad
07:20 PM Tom_L: i need no stinkin material stops
07:20 PM _unreal_: you could setup a macro
07:20 PM XXCoder: yeah I used that style bunch of time.
07:20 PM Tom_L: i'll get it
07:20 PM XXCoder: dowel down, set part to it, clamp, then it goes to tools
07:20 PM linext_: i'm cutting lock barrels at work
07:20 PM XXCoder: wonder if 1 rpm would work anyway, if your spindle can fdo 1 rpm
07:21 PM _unreal_: just create a sub routine macro. and invoke it in your gcode
07:21 PM linext_: they're round cylinders, and the cut is about 4mm down
07:21 PM Tom_L: linext_, https://zincaloy.com/wp-content/uploads/zincaloy-machining-guidelines.pdf
07:21 PM XXCoder: only flaw with stop then cut off, is that orginial point is lost if you need to re-cut it. thankfully very rare
07:22 PM Tom_L: use a high helix aluminum endmill
07:22 PM roycroft[m]: It's neat how he built the stand, but his design aesthetic is arse
07:22 PM XXCoder: heh i went meh on that. i'd use whatever sheets i had thats usable.
07:22 PM _unreal_: arse hehehehe
07:22 PM XXCoder: no mdf however
07:23 PM XXCoder: i dont want sponge to hold up my router
07:23 PM _unreal_: oh my god I cant tell you how many of the luxury yachts I work on have boat loads of sea sponges onboard
07:24 PM _unreal_: they always use them in the gally
07:24 PM linext_: i just kind of jam down on the clamped zinc piece, so the cut takes about half a second
07:24 PM linext_: when the 4-fluke end mill is oiled, it's a very clean cut
07:24 PM _unreal_: O.O
07:24 PM _unreal_: you should never JAM an endmill
07:25 PM _unreal_: for any reason
07:25 PM linext_: i mean i'm cutting it 4mm with a drill press
07:25 PM linext_: we cut them quick
07:25 PM linext_: after about 30 or so pieces, the oil wears away and zinc gets stuck in the flukes
07:25 PM Tom_L: then you're not the least bit worried about feeds and speeds
07:25 PM _unreal_: if your having GUMMING issues. its because something is being done in a way that exceeds the working aspects of the action
07:26 PM _unreal_: flutes not flukes
07:26 PM Tom_L: feed = jam
07:26 PM _unreal_: what your doing is a fluke LOLL
07:26 PM Tom_L: don't insult my meters
07:26 PM linext_: would a end mill like this do better? https://www.amazon.com/gp/product/B07ZGHRWVQ
07:27 PM linext_: zinc is similar to brass
07:27 PM _unreal_: oooooooOOO V cut on the center
07:27 PM Tom_L: http://onlinecarbide.com/33fl37hezrn1.html
07:27 PM _unreal_: but again your real issue is going to fast
07:28 PM linext_: well
07:28 PM linext_: when the cutting oil wears away, i can really try doing a slow cut, but it doesn't really matter. the edges are full of burrs
07:28 PM _unreal_: likely too fast of a plunge. also that is a flat endmill. so its going to chatter a bit as it enters the material
07:28 PM _unreal_: but other wise an endmill like that should work wonderful
07:28 PM linext_: the piece is very secure in an air-powered vice
07:29 PM _unreal_: chatter is typically IN the bit and the entire frame of the drillpress
07:29 PM Tom_L: https://www.lakeshorecarbide.com/38squareendvariablefluteendmillforaluminumzrn.aspx
07:29 PM linext_: it's a bridgeport that we're using as a drill press
07:29 PM Tom_L: i dare say you won't find a better cutter than that one
07:29 PM _unreal_: and the.... the..... thaaaa.... fark whats the term...
07:29 PM _unreal_: run out
07:29 PM linext_: we cut about 1 or 2 thousand pieces per week
07:29 PM _unreal_: of the bearings
07:30 PM Tom_L: you might do better with 2 flute though
07:30 PM _unreal_: And forced air to clear the chips
07:31 PM _unreal_: is this a jigged up setup. for what your doing or hand clamp and hit it on a marked location?
07:31 PM _unreal_: if your doing that many geez I'd look at a cnc machine
07:32 PM linext_: the place is old-fashioned
07:32 PM linext_: they don't want to upgrade anything
07:32 PM linext_: the piece i'm cutting looks like this but without the back
07:32 PM linext_: https://cdn.easykeys.com/Images/Locks/timberline_CB-141_cam_lock.gif
07:33 PM _unreal_: and made of zinc?
07:34 PM _unreal_: typically door locks/latches are some grade of cheap ass steel and zinc coated
07:34 PM _unreal_: zinc its self is very soft especially that thin
07:35 PM linext_: i thought so too at first
07:35 PM linext_: many locks you see in industrial use are made only of zinc
07:35 PM linext_: the part that latches might be made of steel so that the door can't be forced open
07:36 PM _unreal_: I deal zinc endlessly working on yachts...
07:36 PM linext_: the moving parts and the body are typically zinc
07:36 PM Tom_L: linext_, i would suggest a 2 flute high helix carbide endmill for aluminum
07:36 PM Tom_L: center cutting of course
07:36 PM _unreal_: linext_, that I could believe
07:36 PM Tom_L: with 3 flute only one flute is center cutting
07:37 PM Tom_L: 4 flute will clog up too quick
07:37 PM _unreal_: linext_, they suggest the center cutting to reduce chatter when the cut starts
07:37 PM Tom_L: no
07:37 PM Tom_L: if it's not center cutting it will gauld up on the end
07:39 PM _unreal_: aint she a beauty https://th.bing.com/th/id/OIP.V-H4hEcdlhp0NlWeQ9casQHaHa?pid=ImgDet&rs=1
07:40 PM CaptHindsight[m]: I'm looking for a repetitive wall paper pattern that also contains some index marks
07:40 PM linext_: subtlepatterns.com
07:41 PM _unreal_: WOW
07:42 PM _unreal_: https://youtu.be/iQrIMa06GFU
07:42 PM CaptHindsight[m]: repetitive is widely available
07:42 PM _unreal_: one of the crashes in the first 30 seconds
07:43 PM linext_: i need to cut a mold so i can sell a 3d printed object more easily
07:43 PM linext_: i'm building a buster beagle 3d injection molding machine
07:44 PM CaptHindsight[m]: it is not required for precise positioning but would just make is easier when starting far from an edge
07:45 PM CaptHindsight[m]: https://busterbeagle3d.square.site/
07:50 PM CaptHindsight[m]: https://www.magicmurals.com/modern-abstract-geometric.html maybe something like this
07:51 PM -!- #linuxcnc mode set to +v by ChanServ
07:51 PM CaptHindsight[m]: then you just input how many repeats your are starting from say referenced to upper left corner of the stock
07:53 PM CaptHindsight[m]: what is the current GFLOP performance of an Rpi4?
07:53 PM CaptHindsight[m]: likely way more than enough to route pretty quickly
07:58 PM CaptHindsight[m]: another easy way to make a hand held cnc router is to use a grid of cameras from above, 1 or 2 per m^2
07:59 PM linext_: any of you bought from aliexpress bb tools? https://www.aliexpress.com/store/top-rated-products/5104057.html
08:04 PM CaptHindsight[m]: linext_: just the occasional from Shars since they are local
08:04 PM Kevin`: CaptHindsight[m]: rpi has a binary hal, bios-like, that's capable of using undefined amounts of cpu time. I can understand trying to use it because it's cheap and common, but it's not a good choice to design around from scratch
08:05 PM CaptHindsight[m]: https://www.shars.com/
08:05 PM linext_: i bought a shars cross slide vice
08:05 PM linext_: 3 inch, so i can mill non-ferious
08:05 PM linext_: on a drill press
08:05 PM CaptHindsight[m]: I have gotten a few odd taps and things direct from China
08:06 PM CaptHindsight[m]: but for the most part avoid Chinese tooling
08:06 PM CaptHindsight[m]: since Shars is a few minute drive for me I'll pick up in person to check the things before i leave
08:07 PM CaptHindsight[m]: I once got got tool holder that was .125in out of round
08:07 PM CaptHindsight[m]: no QC what so ever
08:09 PM linext_: the cross-slide vice i got was $50 with shipping, and pretty bad
08:09 PM linext_: i had to 3d print a ring to fix the play in the slide
08:11 PM CaptHindsight[m]: there are fine https://i.imgur.com/JQyhf5s.jpg
08:11 PM linext_: https://www.ebay.com/itm/300557181233
08:11 PM CaptHindsight[m]: i have some of their indexable tooling for turning
08:12 PM linext_: the one on the shars website looks better: https://www.shars.com/3-x-y-cross-slide-compound-vise
08:13 PM CaptHindsight[m]: https://www.shars.com/products/indexable-cutting/turning-toolholders?turning_toolholder_category=Turning+Sets
08:15 PM CaptHindsight[m]: Kevin`: is it documented somewhere?
08:17 PM CaptHindsight[m]: not a big pi fan here but I use a few
08:20 PM Kevin`: sort of. https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-4-boot-flow
08:22 PM CaptHindsight[m]: Intel and broadcom are my least favorites followed by TI and nvidia
08:58 PM CaptHindsight[m]: maybe someone will get AMD PCIe graphics working with rockchip or an allwinner
09:15 PM roycroft: i'm just concerned about the robustness of the pi
09:16 PM roycroft: it seems a decent platform for many types of embedded systems, if it doesn't die a sudden and premature death
09:46 PM perry_j1987_: wow those shots are crazy
09:46 PM perry_j1987_: thermals
09:46 PM perry_j1987_: https://www.youtube.com/watch?v=KmMPsrUC-LY
09:47 PM perry_j1987_: 300 meters to splashdown
09:48 PM perry_j1987_: splashdown
09:48 PM perry_j1987_: 4 more astronauts back safe
10:23 PM CaptHindsight[m]: roycroft: keep it cool and the IO'sprotected
10:23 PM CaptHindsight[m]: s/sprotected/s protected/
10:25 PM XXCoder: i'd design in a manfold for air cooling, so water or coolant cannot go all way up then go over and go to rpi
10:27 PM roycroft: i'll collocate mine on the dark side of the moon
10:27 PM XXCoder: just few seconds latency not bad lol
10:31 PM CaptHindsight[m]: buffering................................................................................................buffering..............
10:31 PM roycroft: it will never oveheat
10:31 PM roycroft: overheat
10:31 PM XXCoder: as long as its not in sun
10:31 PM CaptHindsight[m]: https://docs.v1engineering.com/mpcnc/intro/ <$500
10:32 PM roycroft: well it will last at least two weeks
10:32 PM roycroft: which is longer than some pis last here on earth
10:32 PM XXCoder: yeah saw that capt. nope. i see theres second version that uses extrusions
10:32 PM XXCoder: way better
10:33 PM CaptHindsight[m]: BUT I can make one that does not need linear bearings
10:33 PM CaptHindsight[m]: just hand held like the Origin
10:33 PM Tom_L: ok finally got that to work
10:34 PM Tom_L: tool wouldn't take 0 as a spindle speed
10:34 PM Tom_L: it would take .001 and round it down to 0 though
10:34 PM Tom_L: :)
10:34 PM CaptHindsight[m]: i think a cnc wood router that uses pipe for linear bearings is good enuff
10:35 PM _unreal_: My cnc uses pipe for some of its x and y
10:35 PM XXCoder: depends. im not sure if pipe would vary or not
10:36 PM _unreal_: JESUS!!!!! freaking palmetto bug ran over my foot
10:38 PM roycroft: that design uses tubing, not pipe
10:39 PM roycroft: conduit is fairly accurate dimensionally
10:39 PM XXCoder: oh so more precision
10:39 PM roycroft: ss tubing or dom is even better
10:40 PM roycroft: back when i was in my late teens i worked as a qc lab tech at a conduit steel mill
10:40 PM roycroft: i forget the dimensional specs the product had to meet, but it was pretty tight
10:40 PM roycroft: we had to down on the factory floor and pull samples every half hour to test
10:45 PM _unreal_: XXCoder, my cnc uses black iron pipes
10:46 PM _unreal_: they do not flex
10:46 PM _unreal_: granted they are short as well. like 16" ish
10:48 PM roycroft: the router i'm designing is loosely based on the lowrider cnc router, which was designed by the same guy as that tubing and squirted stuff router
10:59 PM -!- #linuxcnc mode set to +v by ChanServ
11:06 PM CaptHindsight[m]: https://machineatlas.com/news/new-festool-patent-track-saw-meets-shaper-origin/
11:06 PM CaptHindsight[m]: https://patents.justia.com/assignee/shaper-tools-inc
11:08 PM roycroft: that's great
11:08 PM roycroft: i always wanted to spend $4500 on a circular saw
11:09 PM roycroft: and i look forward to shaper tape going up to $125/roll
11:11 PM CaptHindsight[m]: JFC the patent even covers injets
11:11 PM CaptHindsight[m]: the way around it all might be by offering a basic mobile robot with add ons
11:12 PM roycroft: i'm actually very happy with my festool track saw
11:12 PM roycroft: and it's competetively priced, even though many argue that it's not
11:17 PM CaptHindsight[m]: shaper tape? Do you mean Chinese contact paper with those funny patterns?
11:18 PM CaptHindsight[m]: maybe the fiducals are also patented