#linuxcnc Logs
Dec 16 2021
#linuxcnc Calendar
12:07 AM -!- #linuxcnc mode set to +v by ChanServ
01:52 AM Deejay: moin
01:54 AM JoseIgnacioRomer: Whats a decent mpg pendant? Are all those wired ones on ebay all about the same?
01:58 AM JoseIgnacioRomer: Like this one https://www.ebay.com/itm/4-Axis-100PPR-CNC-Pendant-Handwheel-5V-w-Emergency-Stop-Switch-Manual-Pulse-MPG-/254462912819
04:15 AM Tom_L: morning
04:52 AM t4nk_freenode: good morning
04:53 AM t4nk_freenode: hey, Tom_L, btw.. I think I just made an improvement on my z-axis!
04:53 AM t4nk_freenode: I now have some backlash compensation
04:54 AM t4nk_freenode: and it seems to work pretty darned well
04:55 AM t4nk_freenode: I reduced the microstepping, and z-resolution is now .04mm
04:55 AM t4nk_freenode: testing with a multimeter.... it responds pretty fine and on repeat
04:58 AM t4nk_freenode: still trying to wrap my head around it, but it just has to mean that my z responds with a single step
05:03 AM t4nk_freenode: I don't see an easy way to test the x- and y-axes without a gauge, but maybe I can just copy the value for the x-axis because it's a single motor on there too
05:04 AM t4nk_freenode: the lead on the screw is different though
05:05 AM t4nk_freenode: but this adjustment on the z-axis might be just what I need to straighten out my milling a pcb
05:12 AM t4nk_freenode: testing will have to wait till later though
05:13 AM t4nk_freenode: but I'm really excited
05:57 AM JT-Cave: morning
07:42 AM Tom_L: wind died down, now back to cold again... 34F
08:00 AM JT-Cave: still pretty warm here but it's not going to last, temp falling this afternoon
09:36 AM -!- #linuxcnc mode set to +v by ChanServ
09:36 AM -!- #linuxcnc mode set to +v by ChanServ
09:39 AM * JT-Shop wonders if I should ship to Taiwan or not???
09:42 AM roycroft: i would not have a problem shipping to taiwan
09:43 AM roycroft: with the usual caveats of using a traceable carrier, requiring a signature on delivery, customer is responsible for any customs charges/tariffs
09:43 AM JT-Shop: it's been a long time since I shipped anything to Iaiwan...
09:43 AM JT-Shop: aye, I would use UPS only
09:44 AM roycroft: i was shipping to australia for a while, many years ago
09:44 AM roycroft: australian customs was difficult to deal with, but ups had a service where they would broker it through customs for an additional fee
09:45 AM roycroft: that service made ups my carrier of choice
09:45 AM roycroft: this was a good 25 years ago - things may have changed since then
09:45 AM JT-Shop: I ship to AU and NZ quite often with no issues or extra for me using UPS
09:45 AM roycroft: the only thing i know is that australia is still a very expensive place to ship to/from, and to live in
09:45 AM JT-Shop: so long as you have the customs form on the outside of the box there is no issues
09:46 AM roycroft: that has not changed
09:56 AM roycroft: that was not the case in the '90s, when i was shipping there regularly
09:57 AM roycroft: i don't remember all the details, but i remember that fedex was cheaper, and i used them at first, but things would sit in customs for weeks, and my customers would have to hire a broker to get them cleared
09:57 AM roycroft: when i started using ups, who would handle the brokering, everybody was a lot happier
09:58 AM roycroft: i was shipping computer networking gear, so similar to what you're likely shipping
09:58 AM roycroft: i think the australians just did not want foreign goods in their country at the time
10:09 AM JT-Shop: getting a bit of a chill in the machine shop... time to fire up the stove
10:10 AM roycroft: i was doing some work in my shop yesterday after work, and it was rather cold
10:11 AM roycroft: but it takes 2-3 hours for the shop to warm up, and i only had an hour's work to do, so i chose to wear a heavy coat instead of turning on the heater
10:11 AM roycroft: fortunately with the work i was doing the heavy coat did not get in the way
10:12 AM roycroft: i have to paint the cover for a j-box today, though
10:12 AM roycroft: and it's going to be cool all day - below the temperature i like for painting, so i'll have to go turn on the heater in the fabrication shop
10:12 AM roycroft: i should do that now, actually, so that it warms up enough by the time i'm ready to shoot the paint
10:16 AM aaroncnc: that is the one thing i like about my little home shop low 7ft ceilings and only 24x24 means it gets warm fast.
10:17 AM JT-Shop: I have a logwood stove in the corner not far from my desk so it warms up pretty quick in the machine shop
10:19 AM roguish[m]: JT-Shop: good morning. got a problem. i think i found either a documentation error, or a real linuxcnc error. not sure who or where to take the problem...... any clue?
10:20 AM JT-Shop: can't guess what it might be :)
10:21 AM roguish[m]: in the docs, .ini section, RS274ngc section, this: CENTER_ARC_RADIUS_TOLERANCE_INCH = n Default 0.00005
10:22 AM roguish[m]: when i have that in a .ini file, and read in a thread milling code, the code fails with an error about arc radii not being correct.
10:23 AM roguish[m]: when I take that CENTER_ARC_RADIUS_TOLERANCE_INCH out of the .ini file, the gcode runs fine.
10:23 AM JT-Shop: is the start point and end point radius the same
10:24 AM JT-Shop: what did you set the CENTER_ARC_RADIUS_TOLERANCE_INCH to?
10:24 AM roguish[m]: I had to increase the 'default' from 0.00005 up to 0.0002 to get the file to run.
10:24 AM JT-Shop: could be the g code...
10:25 AM roguish[m]: the thread mill gcode comes from SCT code generator. they make thread mills.
10:25 AM JT-Shop: what is the start point and the G2/3 line?
10:26 AM roguish[m]: also, thread milling produced by Features (NativeCAM) fails the same way.
10:26 AM JT-Shop: sounds like bad g code
10:26 AM roguish[m]: tells me that internally the default is not really what the doc says.
10:28 AM roycroft: do any of you use any vectric products, such as aspire or vcarve pro, with linuxcnc-driven routers?
10:28 AM roguish[m]: I'm going to test today with gcode out of Fusion360, and HSMexpress (almost the same as Fusion...)
10:28 AM roguish[m]: Oh, and maybe with Mastercam thread mill gcode.
10:28 AM JT-Shop: sounds like bad g code to me
10:28 AM roguish[m]: my question is where or how do I report the problem????
10:28 AM roycroft: report it to the internet
10:29 AM roycroft: if you report it in all caps you're sure to get more responses than you could ever wish to receive
10:30 AM JT-Shop: if it is a reproducible bug ie with Axis sim and a couple of lines of code then the bug tracker is the place to put it
10:30 AM roguish[m]: JT-Shop: in the old days, I would bring it up to those on the -devel channel, and it would get handled.
10:30 AM JT-Shop: you need to test with just two lines of g code move to start point and and an arc
10:30 AM JT-Shop: the old days are gone
10:31 AM JT-Shop: so can you isolate it to just two lines of code as an example?
10:31 AM roguish[m]: JT-Shop: should i put it on Github under 'Issues' ?
10:31 AM JT-Shop: if you can show an example of it yes
10:32 AM JT-Shop: just general complaint about an arc failing is not enough information
10:32 AM roguish[m]: well, yeah, that is why i'll do more testing. so I can post the gcode files too.
10:33 AM JT-Shop: like I said you only need the line of g code that fails and the line before that positions for the start of the arc
10:34 AM roguish[m]: JT-Shop: ok, thanks for the confirmation......
10:34 AM JT-Shop: every time I've had an arc fail is due to bad g code
10:34 AM JT-Shop: start and end point and radius were not correct
10:35 AM roguish[m]: i get that. my concern is that the actual source code and docs do not match.
10:36 AM JT-Shop: that should be easy to test
10:38 AM roguish[m]: I'll thoroughly test it out. maybe even look into the source code...........lol
10:39 AM JT-Shop: sounds like a plan
10:41 AM JT-Shop: https://github.com/LinuxCNC/linuxcnc/blob/master/src/emc/rs274ngc/interp_arc.cc
10:59 AM roguish[m]: JT-Shop: hey. here's code in the source, interp_internal.hh
10:59 AM roguish[m]: #define MIN_CENTER_ARC_RADIUS_TOLERANCE_INCH 0.00004
10:59 AM roguish[m]: #define RADIUS_TOLERANCE_INCH 0.00005
11:01 AM roguish[m]: adn
11:01 AM roguish[m]: and
11:01 AM roguish[m]: /*****************************************************************************... (full message at https://libera.ems.host/_matrix/media/r0/download/libera.chat/b049736950ed75e245ec61a4bbdc6cb542023d98)
11:09 AM roguish[m]: JT-Shop: if I put this on the forum, what section should it go in???
11:12 AM JT-Cave: MIN_CENTER_ARC_RADIUS_TOLERANCE_INCH is different than RADIUS_TOLERANCE_INCH?
11:12 AM JT-Cave: the forum is not a bug tracker
11:12 AM JT-Cave: https://github.com/LinuxCNC/linuxcnc/issues
11:15 AM roguish[m]: there is something wrong. if I put into the .ini a 'documented' default, the gcode should not fail.
11:16 AM roguish[m]: it should only fail if I tighten the 'default' too much.
11:25 AM * JT-Cave sees that lunch minute is up so back to work
11:26 AM roguish[m]: JT-Cave: I appreciate your help....thanks.
12:27 PM roycroft: are you about, jt?
12:34 PM JT-Shop: a bit
12:34 PM roycroft: i just spoke with paypal
12:35 PM roycroft: their fees are 4.99% + $0.09 for micropayments
12:35 PM roycroft: they could not define a micropayment, though, and would have to look into that further
12:35 PM roycroft: i checked patreon for comparison, as they do small payments via paypal
12:36 PM roycroft: and patreon charge 5% +$0.10 for micropayments, which they define as $3.00 or less
12:36 PM roycroft: i'm not sure how a software project would fit into the patron schema, but that may be a possibility
12:37 PM roycroft: you could solicit $1 monthly donations from patrons to support the forum and other development efforts
12:37 PM roycroft: and i'll follow up with paypal to see if i can get a more definitive answer from them on what constitutes a micropayment
12:38 PM JT-Shop: I thought paypal had a free option for non-profit?
12:38 PM roycroft: i don't think a handful of people, who do all the work to maintain the software, forum, and other infrastructure, should need to foot the bill for hosting as well
12:38 PM roycroft: the community can do that
12:38 PM roycroft: they have reduced rates for non-profits, and they completely subsidize some non-profits
12:38 PM roycroft: but i think you'd have to be a registered 501c non-profit to get that
12:39 PM roycroft: i'm assuming that's not the case with the linuxcnc project
12:39 PM JT-Shop: not sure what a 501C is
12:39 PM roycroft: personally i'd be ok if i sent $1/month to support linuxcnc and know that the project gets 85cents of that
12:39 PM roycroft: a 501c is a class of businesses that are registered with the irs as not for profit
12:40 PM roycroft: there are several variants, with 501c3 being the most common
12:40 PM JT-Shop: so 15 people would pay for the web site
12:40 PM JT-Shop: ah I see
12:40 PM roycroft: yes, it would not take much for that
12:40 PM roycroft: but i thought that there was some work that seb is doing that needed funding as well
12:41 PM roycroft: i don't know if it's worth soliciting funding for what the project is doing
12:41 PM roycroft: i suspect that you'd be able to bring in far more than just the cost of hosting the forum, though, and that could go towards other development work
12:42 PM roycroft: if someone wanted to write code to support some hardware that none of the developers currently has, for example, that could be done through the community funding
12:43 PM roycroft: just some food for thought
12:45 PM roycroft: anyway, i'm happy to follow up more on the cost and mechanics of accepting donations if you would find that useful
12:46 PM roycroft: paypal can be kind of hit and miss when it comes to getting good information from them
12:46 PM JT-Shop: ok thanks
12:46 PM roycroft: but i've been dealing with them for decades, and know how to be patient with them
12:47 PM roycroft: patreon could be a really useful tool
12:48 PM roycroft: if there are features that people want and the developers don't have time to add them, patreon could be used as a funding campaign to pay for someone's time to write the code
12:48 PM roycroft: kind of like how gofundme works, but not as potentially scammy, imo
12:49 PM roycroft: this is assuming that either someone on the development team would be able to carve out the time if there were compensation available, or that the development team would be willing and able to hire an outside coder for the project
12:49 PM roycroft: and, of course, a willingness to do things that way
12:51 PM roycroft: maybe i should be talking to the freecad people about this intead of the linuxcnc folks, as linuxcnc already works pretty damn well, but freecad is still not useful as a production tool and could use a kick in the pants to get things moving
12:52 PM roycroft: oh, both paypal and patron charge an extra 1% for payments made outwith the united states
12:52 PM roycroft: patreon, rather
12:54 PM jdh: I use cut2d with linuxcnc. Works great
12:59 PM roycroft: thanks, jdh
01:00 PM roycroft: did you have to write a post-processor for the gcode, or modify an existing one?
01:00 PM roycroft: i think they have an emc post processor
01:13 PM aaroncnc: roycroft, i had hopes for freecad but every time i try and use it i struggle against the software vs autodesk inventor just works for me.
01:15 PM roycroft: i'm using solidworks to design my cnc router
01:15 PM roycroft: i'd like to be able to use freecad, but i can't
01:21 PM roguish[m]: roycroft: i'd be happy to pay annually, like $5 or $10............
01:28 PM roycroft: i think lots of us would
01:29 PM roycroft: i could be wrong, but being wrong has never stopped me from thinking before :)
01:29 PM aaroncnc: i like one time fee based products. you know the old way.
01:30 PM roycroft: i do too, for commercial products
01:30 PM roycroft: but for community-driven open source stuff, i don't mind paying a bit on a recurring basis
01:32 PM aaroncnc: I am more of a donations kinda guy, but i understand that most people dont donate to a project. maybe only 0.1% actually give back.
01:35 PM aaroncnc: wikipedia asks for money and i give, started using remora and sent some money to scotta. i should give to the linux cnc group but on the website and forums i dont see any obvious donate or support link or posts.
01:40 PM roycroft: yes, i fund several folks through patreon, and i give wikipedia and archive.org money every year
01:41 PM XXCoder: roy what problem did you have with freecad?
01:41 PM roycroft: i also am a sustaining member of three public radio stations, and two local music venues that do instructional work as well as hosting performances
01:41 PM roycroft: i've said it so many times i sound like a broken record
01:42 PM roycroft: but in brief, again, there is no official assembly workbench, and all the unofficial ones use different mechanisms to create assmblies
01:42 PM XXCoder: ahh yeah
01:42 PM XXCoder: it really do need one
01:42 PM aaroncnc: XXCoder, for me it was unable to do split/section views on a model with active sketch.
01:42 PM roycroft: whichever one is officially chosen, if i picked the wrong one i lose all my assemblies
01:43 PM roycroft: that's a problem, aaroncnc, but it can be worked around by doing some manual replication of parts of your drawing
01:43 PM roycroft: it's a lot of extra work, and makes using it inefficient, but not really a deal killer
01:43 PM roycroft: the lack of assemblies is a deal killer imo
01:44 PM roycroft: section views is also a feature they can add in the future without anything breaking
01:44 PM roycroft: assemblies not so
01:44 PM roycroft: i'm not invalidating your reason for not being able to use it
01:44 PM aaroncnc: yea, i know i can do workarounds and stuff i just feel that everything i do on free cad is always a bit off and have to find workarounds for things that just work in inventor.
01:46 PM aaroncnc: the problem is also i have been using inventor for about 10 years. im kinda stuck in that mindset.
01:46 PM roycroft: i get that too
01:47 PM roycroft: while i only took one solidworks coarse, and primarily do fairly basic things with it, i am fairly accustomed to it, and if i need a quick 3d model i find myself going to solidworks and not freecad, even if it's just a simple part and i don't and won't need an assembly
01:49 PM aaroncnc: also using steam remoteplay feature i can use inventor from any device on my network. even crappy slow dual core systems.
01:51 PM roycroft: and i have to run solidworks in a windows vm on whatever machine i'm using at the time
01:51 PM roycroft: freecad runs natively on macos and linux
01:51 PM aaroncnc: i can use my phone with an usb-c to hdmi adapter with a set of wireless keyboard and mouse and be running inventor just as it is on my main rig.
01:51 PM roycroft: so there's a huge advantage there
01:52 PM roycroft: i *want* freecad to be useful
01:52 PM roycroft: it's impossible to use it for the cnc router design though, for example
01:53 PM roycroft: i not only have to make sure all the parts fit, i have to do motion simulation to make sure nothing crashes into other parts while moving along the rails
01:53 PM roycroft: that requires semi-complex assemblies
01:53 PM roycroft: not a folder full of parts
01:54 PM roycroft: anyway, i've said all of this many times before
02:25 PM CaptHindsight[m]: from Comcast: It appears your current internet speed is outdated and I wanted to go over some available options with you to help improve your productivity and increase your revenue stream
02:26 PM CaptHindsight[m]: ATT has live fiber installed but won't connect it, how available is Starlink now?
02:27 PM aaroncnc: not sure but i am waiting till they get approval for mobile dishes. so i can take my internet with me as i travel
02:31 PM roycroft: "It appears your current internet speed is part of a legacy service offering from which we do not profit enough, so I wanted to go over some available options with you to help increase our profitability ..."
02:31 PM roycroft: there, i fixed that for you
02:38 PM XXCoder: nice roy
02:38 PM JT-Shop: Starlink launched 100 satellites in the last few weeks
02:38 PM aaroncnc: JT-Shop, those are the gen 2 ones right with the laser links?
02:38 PM JT-Shop: yep, that was the whole delay waiting on the upgrades
02:39 PM Tom_L: JT-Shop, you get starlink yet?
02:39 PM aaroncnc: laser links = less need for ground stations and less latency. I am excited
02:39 PM JT-Shop: I'm on the waiting list
02:39 PM XXCoder: i hope they painted bottom of sats so it dont glare at people trying to get space photos
02:40 PM JT-Shop: they are 340 miles up...
02:40 PM XXCoder: and still affects things
02:40 PM aaroncnc: XXCoder, sadly as time goes on and as other country's try to do the same i fear that will be a problem.
02:40 PM XXCoder: indeed
02:41 PM CaptHindsight[m]: what are current starlink ping times?
02:41 PM Tom_L: just don't look up anymore unless you wanna go blind :)
02:41 PM XXCoder: Tom_L: not sure what you mean, since while it doesnt show for people. im talking about photography
02:41 PM aaroncnc: i wish this type of project was a collaborative one with many other countries, so there wont have to be 5 different ones in the sky.
02:42 PM aaroncnc: CaptHindsight[m], i have read they are around 40-70ms
02:55 PM JT-Shop: starlink is global
02:59 PM CaptHindsight[m]: maybe why Comcast is getting pushy
02:59 PM CaptHindsight[m]: "why don't you want a 2 year contract?"
03:03 PM XXCoder: we left comcast for good couple years ago, and we didnt reget it
03:11 PM roycroft: i have comcast for my internet service at home, and i'm fine with it
03:12 PM roycroft: first, the only other high speed alternative in my part of town is centurylink dsl, but they don't have a stinger close enough to my house - i live at the very end of the service area for the central office, so it's not even an option for me
03:12 PM roycroft: satellite services would be the only other option
03:12 PM roycroft: and my boss pays for it, and it works reliably
03:13 PM roycroft: so i'll stick with comcast
03:13 PM XXCoder: yeah really does depends on location
03:13 PM XXCoder: here comcast just suck
03:13 PM CaptHindsight[m]: our business service is out quite often on weekends or late night, just when we need it
03:13 PM XXCoder: they kept trying to blame us for slow service
03:13 PM XXCoder: they replaced external connection twice and stuff, but really its just oversubricated line
03:14 PM CaptHindsight[m]: "dear Comcast customer, please try to limit your internet usage to be within the hours of 8 and 6 Monday through Friday"
03:15 PM roycroft: "dear comast customer, please limit all use of our services to the bare minium possible, other than our own online bill payment service."
03:23 PM roycroft: there, i fixed that for you again :)
03:23 PM CaptHindsight[m]: "Online bill payment is now available 24/7 guaranteed"
03:23 PM XXCoder: new comcast service: "Internet lite: facebook, your bank, and comcast.com"
03:23 PM XXCoder: $50 a month
03:23 PM CaptHindsight[m]: next time it goes down I'll tell them that it went down right when i wanted to prepay my bill
03:23 PM CaptHindsight[m]: they automate their phone service to catch your number and then just play a message to you
03:23 PM CaptHindsight[m]: you have to really try to get an agent when they know that your service is down
03:25 PM CaptHindsight[m]: are they that now?
03:25 PM CaptHindsight[m]: were they invaded?
03:25 PM roycroft: hungary, austria, or 1934 germany would be more his kinds of places
03:25 PM CaptHindsight[m]: you miss the news one day....
03:25 PM roycroft: they have universal health care
03:25 PM roycroft: therefore they are socialist
03:26 PM CaptHindsight[m]: oh so he's just sticking around here for that
03:26 PM roycroft: he's on medicare now
03:26 PM roycroft: but he hates universal, government-provided health care
03:26 PM roycroft: but don't you dare take his medicare away from him
03:27 PM XXCoder: lol met people like that
03:27 PM roycroft: the cdc just recommended that people get the pfizer or moderna jab and not the j&j
03:28 PM CaptHindsight[m]: keep the guberment out of my medicare!
03:29 PM CaptHindsight[m]: it's on the shelf next to the powdered water
03:33 PM roycroft: i don't know why the cdc decided that
03:34 PM roycroft: there are some concerns about blood clotting with the j&j
03:34 PM roycroft: it may be that
03:34 PM roycroft: it may be the much lower efficacy of j&j vs. the current mrna vaccines
03:34 PM roycroft: i've been a pfizer man all along, and i'm happy to stick with that
03:35 PM CaptHindsight[m]: could be worse https://twitter.com/CDCgov/status/1471578393909080064?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Etweet
03:36 PM roycroft: it looks like it's the blood clotting thing
03:36 PM roycroft: and also the reduced efficacy
03:37 PM XXCoder: i went with modernia. booster was also modernia
03:37 PM roycroft: moderna and pfizer are very similar
03:38 PM XXCoder: more or less. i remember reading that modernia lasts a bit more than pfizer
03:38 PM XXCoder: i got booster anyway since it helps
03:38 PM roycroft: the only reason i prefer pfizer over moderna is that when our former president promised money to firms developing vaccines, pfizer told him to bugger off, and that they would do it on their own :)
03:39 PM roycroft: xxcoder: if that's the case, it may be because there was a longer interval between the first and second jabs with moderna than with pfizer
03:40 PM roycroft: the longer the wait, to a point, between the initial jab and the booter, the more effective and longer lasting the booster generally is
03:40 PM XXCoder: ok
03:40 PM roycroft: with pfeizer it was 3 weeks, and with moderna it was 4 weeks
03:40 PM roycroft: i'm not saying definitively that is the case, but that's how vaccines usually work
03:41 PM roycroft: and certainly the 3rd jab after six months is significantly more effective than the first or second, regardless of whether it's pfizer or moderna
03:45 PM CaptHindsight[m]: people are saying that the voting machines will require ID as well as proof of vaccination to be fair to all voters next year :)
03:47 PM CaptHindsight[m]: People are saying (trigger that BS will follow) "place nonsense here". This is how you are suppose to do it
03:48 PM XXCoder: capt wheres that come from? didnt see any of such
03:50 PM roycroft: he already told you
03:50 PM roycroft: "people are saying"
03:50 PM XXCoder: too vague
03:50 PM roycroft: yes
03:50 PM roycroft: welcome to right wing thinking
04:05 PM CaptHindsight[m]: XXCoder: "people are saying" might mean people or only the person saying it since they are likely a person, contrary to their outward appearance
04:05 PM CaptHindsight[m]: try it out for yourself
04:09 PM roycroft: the irony is that the right, who fancy themselves individualists, are really good at projection - a right winger thinks something, and then assumes that all other correct thinking people think the same
04:10 PM roycroft: whereas the left, who fancy themselves more collectivists, are now all wrapped up in wokeness, where an individual thinks something, assumes that it's a brilliant and novel thought, and assumes nobody else in the universe shares that thought, and require extensive lecturing and woke-splaining how things really are
04:11 PM CaptHindsight[m]: wake me up before you go-go
04:14 PM aaroncnc: CaptHindsight[m], did you see the lates post from scotta?
04:14 PM aaroncnc: Also, we could double the step rate by completing the step in one thread cycle vs the two that are currently used.
04:15 PM CaptHindsight[m]: yeah
04:15 PM CaptHindsight[m]: lots more options now, but still hard to get parts
04:17 PM CaptHindsight[m]: LPC17xx, STM32fxxx, ESP32 and now some cheap Lattice FPGA
04:18 PM CaptHindsight[m]: so nobody with a low cost CNC or printer can complain about how LCNC costs too much
04:20 PM CaptHindsight[m]: https://www.led-card.com/colorlight-5a-75-ture-color-led-processor.html
04:20 PM CaptHindsight[m]: $16.00
04:20 PM roycroft: you forget, capthindsight, this is 'murica
04:21 PM roycroft: anyone can complain about anything for any reason, and demand to have said complaint taken seriously
04:24 PM CaptHindsight[m]: Team America: World Police was made almost 20 years ago
04:26 PM bobbytables: I've been looking at the PIO units on the Raspberry Pi RP2040 (found in the Pi Picos) and I'm pretty sure they could replace the FPGAs for only $4 each...
04:28 PM CaptHindsight[m]: AND another option is the ST PowerStep's
04:29 PM CaptHindsight[m]: Rpi4 --> SPI bus extender ---> PowerSTEP integrated right into the stepper motor
04:29 PM roycroft: the first lotr film came out 20 years ago
04:30 PM roycroft: stephen colbert did a 20th anniversary rap number last night to celebrate the anniversary - it's worth checking out
04:31 PM roycroft: https://www.youtube.com/watch?v=L1dU1HZ_73M
04:33 PM roycroft: warning though - do not watch the entire show from last night
04:33 PM roycroft: denzel washington was the guest, and he and the host named the scottish play by name many times
04:34 PM CaptHindsight[m]: I could not tolerate the books or the films, I did manage to read half of Bored of the Rings (a parody)
04:36 PM roycroft: unless you enjoy doing lots of "hot potatoes, orchestra stalls, puck to make amends" chanting
04:46 PM Tom_L: so after yesterday's wind, i had a few things caught in the tree i had to get out which inspired me to see if my old mac chainsaw would run
04:47 PM Tom_L: gassed up after sitting 25yrs, primed it, choked it and it fired right up
04:47 PM CaptHindsight[m]: anything big like appliances or cows?
04:47 PM Tom_L: just a big tarp
04:47 PM Tom_L: out of reach
04:48 PM Tom_L: used a ball/string to get the path for a rope to pull it down
04:50 PM CaptHindsight[m]: we get eddies in front by out door so anything within 10 ft of the front just gets blown into an open door
04:51 PM roycroft: i suffered no damage after our blustery weekend
04:51 PM CaptHindsight[m]: I used a snow shovel to push leaves away
04:53 PM CaptHindsight[m]: Tom_L: did you have any nearby tornadoes or just the higher than usual winds?
04:53 PM Tom_L: afik just the high wind
04:54 PM Tom_L: what leaves were left on trees are now cleared
04:57 PM roycroft: i have a mountain ash tree and several oregon black oak trees that hang on to many of their dead leaves throughout the winter, and only shed them when spring arrives
04:57 PM roycroft: even big wind storms do not shake them loose
04:57 PM Tom_L: iirc oak do that as well
04:58 PM Tom_L: ... as you mentioned :)
04:58 PM roycroft: i don't have any other species of oak here, and really don't pay that much attention to oak trees in the winter otherwise, so i don't know about other species
04:58 PM roycroft: but it would stand to reason that it could be a common trait amongst oak trees
04:58 PM Tom_L: the ones around here shed in the spring
04:59 PM roycroft: mine i'd say lose about 70-80% of their leaves starting in the fall, and then drop the remaining ones in march
05:57 PM JT-Shop: the oak and hickory and walnut all shed most of their leaves in the fall here if not when Hilda was alive she would throw rocks at the leaves trying to knock them off
06:40 PM Tom_L: While most trees lose their leaves in the winter, live oak trees drop their leaves in January through February. Live oaks are not true evergreens like other oaks are. They will drop their old leaves in the winter and regain new ones in the spring. The leaf drop usually occurs over 2-3 weeks.
06:53 PM Tom_L: There are approximately 500 extant species of oaks.
06:53 PM Tom_L: ... i had no idea there were so many
07:26 PM roycroft: i did not know there were 500 species of oak, but i knew there were a lot
07:26 PM roycroft: certainly in the hundreds, not tens
07:26 PM roycroft: earlier i specifically mentioned oregon black oak
07:27 PM roycroft: i know there are several other species of oaks that are called 'black oak'
07:33 PM XXCoder: is black oak wood darkish or something?
07:33 PM XXCoder: could be cool for inlays
07:33 PM CaptHindsight[m]: https://github.com/kubroid/steps-frequency-multiplier
07:34 PM XXCoder: hmm definitely not,but still look qyite good wood
07:37 PM roycroft: i've not used it in any woodworking projects, but from pruning my trees, i'd say it's more like english brown oak
07:37 PM roycroft: a bit darker than white oak, and not ugly like the ubiquitous 1980s red oak *barf*
07:38 PM roycroft: if i ever prune a large enough limb, or fell a whole tree, i think i'd be able to get some rather attractive wood out of it
07:39 PM XXCoder: cool :)
09:10 PM _unreal_: ve7it, just got an other sat.... looks like the motor is good. so I now have the 3 bldc s with onboard encoder. so this project can now move on.
09:24 PM skunkworks: power off for about 12 hours.
09:27 PM roycroft: my cat does that every day, and it works well for her
09:29 PM XXCoder: lol
09:29 PM XXCoder: 12 hours passed already!
09:31 PM skunkwor1s: lostsamurai[m]:
09:31 PM skunkwor1s: oops
09:33 PM skunkwor1s: https://youtu.be/zd8H8ohdUgs
09:35 PM CaptHindsight[m]: skunkwor1s: missor is also making a rail gun
09:35 PM CaptHindsight[m]: what is with all the rail gun interest lately?
09:36 PM roycroft: gunz are bad, mmmkay?
09:38 PM XXCoder: interests... I guess it ranges from challenges to a way around buying guns
09:38 PM XXCoder: I wonder how longe left before first rail gun death, delibrately
09:39 PM _unreal_: so this will be interesting. I have the final motor now that I need for this new cnc machine build. to upgrade my current cnc machine.
09:39 PM _unreal_: nothing wrong with it BUT it will be nice to have a larger machine
09:39 PM roycroft: my new spindle arrived today, btw
09:39 PM XXCoder: awesome. did it fit well into holder?
09:39 PM _unreal_: mainly because I'm looking to match my laser etcher size for size as far as working area
09:39 PM roycroft: i haven't checkec
09:39 PM roycroft: but the dead one is identical, and it fits
09:40 PM _unreal_: or maybe increase a little bit. does not need to be super huge. but it does need to be bigger then hat I am working with right now. the current one is wonderful but just to small for a lot of stuff
09:40 PM _unreal_: what power range spindle?
09:40 PM roycroft: it's 2.2kw
09:40 PM roycroft: er20
09:40 PM roycroft: 24,000rpm
09:40 PM _unreal_: ok equal to mine just larger
09:40 PM XXCoder: cool
09:41 PM roycroft: and it's a genuine huan yang
09:41 PM _unreal_: I have a 1.5kw but er11 collet
09:41 PM roycroft: the 4 bearing model
09:41 PM _unreal_: only reall difference is having the power for the larger collet
09:41 PM skunkwor1s: Huh - I wonder why I keep disconnecting..
09:41 PM roycroft: my router table has the exact same spindle
09:42 PM _unreal_: skunkwor1s, because I keep folding my arms, nodding my head and blinking.
09:42 PM skunkwor1s: Stop it!
09:42 PM skunkwor1s: CaptHindsight[m]: I made this exact thing in highschool and never did anything with it. I thought I might be slightly smarter now.
09:42 PM roycroft: the way i see it, if i have multiple machines using the same components it's not as important to stock spares of that component, because in a pinch i can borrow from another machine
09:43 PM CaptHindsight[m]: skunkwor1s: didn't you make some solar reflector as well?
09:44 PM CaptHindsight[m]: I'll take old HS projects for $500
09:44 PM _unreal_: old hs projects?
09:44 PM roycroft: *chuckle*
09:45 PM roycroft: colbert was on a rant last night about the harry potter 20th anniversary reunion
09:45 PM roycroft: "i mean, harry potter is ok, but dumbledore was weak - he got killed by a high school chemistry teacher"
09:46 PM _unreal_: strange to think 20 years
09:46 PM roycroft: and then the lotr rap commenced
09:46 PM XXCoder: he who shall not be named failed to beat high school twice
09:47 PM roycroft: he who shall not be named could not get laid in high school
09:47 PM roycroft: and look what that did to hiim
09:47 PM XXCoder: lol
09:47 PM aaroncnc: man i have been trying to work with a guy on fb market for 3 cnc mills and he just listed them as sold....
09:48 PM skunkwor1s: CaptHindsight[m]: umm.. Make and finish are 2 different things?
09:52 PM CaptHindsight[m]: make/worked on
09:53 PM CaptHindsight[m]: late teens are busy years
09:55 PM skunkwor1s: I think our internet is still a bit spotty.
09:55 PM roycroft: the internet is full of worms
10:04 PM skunkwor1s: whew.
10:04 PM skunkwor1s is now known as skunkworks
10:04 PM skunkworks: there.
10:11 PM skunkworks: I still couldn't find a nice tube.. I ended up using a telescoping antanna section. Which is - chromed copper so... I am inducing a field through a metal tube enough to forcebly throw a bb...
10:21 PM roycroft: the internet is a series of tubes
10:21 PM roycroft: perhaps you can can borrow a small part of the internet
10:24 PM skunkworks: Hmm seems to be better.. When all else fails reboot the router and switch...
10:24 PM skunkworks: the flickery power may have confused things..
10:39 PM _unreal_: designing the frame ofmy new cnc machine. its starting to come together
10:39 PM Contract_Pilot: Hey all
10:54 PM _unreal_: well bed time and then some
10:54 PM _unreal_: and at this point my new cnc machine design really looks like a good start.
10:54 PM _unreal_: I also got some really cool rails. that I'm going to turn into a sliding storage location. do to the large square tubes that will be the foundation of the BASE of this thing
10:55 PM _unreal_: good for a draw or hanging something
10:55 PM _unreal_: so it will be nice to make some long storage draws that stow inside the tubes