#linuxcnc Logs

Sep 09 2019

01:44 AM Loetmichel: *giggle* ones bad luck is anothers fortune... just had a big traffic jam on my way to work... so i decided to turn around and go the "scenic route"... JUST standing at the traffic light to turn around, knock on the window.. Young woman:" excuse me, so you have a jumper cable by chance?" $me: "jup" She:"and time to help me?" $me:"i am already 5 minutes late, who cares. Sure!"... so i parked
01:48 AM Loetmichel: my car, got the jumper pack from the trunk, connected it, started her car... She:"oh, thats nice! I should buy one of those boxes!" $me: "nope, you should buy a new battery... See you!".. stored my stuff, drove away ;)
01:48 AM jesseg: lol
01:55 AM Deejay: moin
06:53 AM Tom_L: morning
07:04 AM jthornton: morning
07:05 AM XXCoder: yo
07:05 AM XXCoder: jt good news
07:06 AM XXCoder: I managed to get 2 1000mm 45mm diameter tubes.
07:06 AM XXCoder: so I can finish it without fusing anything
07:07 AM XXCoder: its so dang hard to get meteric tubes here lol
07:20 AM jthornton: that for your light fixture?
07:21 AM XXCoder: yeah now that I have 2 of em its cost effective to order one 2000mm one cut in half
07:21 AM XXCoder: since I need 700mm approx lengths
07:22 AM XXCoder: well off to bed before im dead heh later
07:23 AM Centurion_Dan: even in metric countries the metric tube is based on approximations of the SI sizings, and are often based on nominal bore too....
07:24 AM Centurion_Dan: I didn't think that 45 was a metric size... 42mm or 48mm are more common
07:38 AM Elmo40: what kind of tube?
07:38 AM Elmo40: aluminum? stainless?
07:41 AM jthornton: he's gone to bed, clear tube
07:42 AM Elmo40: i know with aluminum tubing there is a 32, 40 and 50 from one company.
07:42 AM Elmo40: clear? as in plastic?
07:42 AM jthornton: yea or glass
11:09 AM Elmo40: anyone machining styrofoam?
11:09 AM Elmo40: https://www.youtube.com/watch?v=xA99PIjqbVk
11:16 AM Deejay: wow
11:18 AM sensille: what a mess
11:46 AM Elmo40: FreeCAD has come a LONG way!!
11:46 AM Elmo40: https://www.youtube.com/watch?v=85HlYXnaxbw
11:52 AM Elmo40: anyone interested in non-planar 3D printing? many PDFs out there. many videos, too.
11:52 AM Elmo40: https://hal.archives-ouvertes.fr/hal-02120033/document
11:53 AM gregcnc: milling foam is a mess, but where is the vacuum?
11:53 AM Elmo40: breath deep!
11:57 AM jym: I didn't realize FreeCAD had CAM built it
11:58 AM FinboySlick: I'd be curious to see what the styrofoam does to the cutter in the long run. I'm always surprised by how quickly it dulls olfa knife blades.
12:11 PM Tom_L: jym, ich had been working on that i think
12:11 PM jym: Tom_L: Yeah, I just watched that video above
12:12 PM jym: Interesting that he included a SQL reporter in it too
12:17 PM FinboySlick: One (tiny) thing that annoys me with OpenCASCADE based software (like freecad) is the fact that they cut tengential surfaces with a line (holes will have two lines running down the side).
12:18 PM FinboySlick: I don't know if that can be turned off.
12:24 PM Elmo40: jym, i didn't know it had CAM either!
12:24 PM jym: =)
12:24 PM Elmo40: one step closer to an integrated slicer... ;-)
12:25 PM Elmo40: FinboySlick, there must be a way to join the faces. do these lines affect anything outside of the CAD environment?
12:26 PM FinboySlick: No, it's just a visual thing.
12:27 PM FinboySlick: Basically, it exposes the fact that internally, the cylinder surface is made out of two surfaces. But from a design representation point of view, it should be just one surface.
12:27 PM FinboySlick: eg: You drew a circle and extruded it. You didn'T draw two 180° arcs that you joined.
12:27 PM Elmo40: you see 2 lines?
12:28 PM Tom_L: sometimes it matters where the arc starts
12:28 PM Tom_L: depending on the cad
12:28 PM FinboySlick: I don't remember if it's 2 or 1, but basically, it creates a line between tangent surfaces (cylinder is just the most obvious example)
12:28 PM Elmo40: last time i used it (maybe 2010?) i only recall 1 line in a cylinder
12:28 PM gregcnc: does a circle have an end?
12:28 PM Tom_L: yes
12:29 PM FinboySlick: Elmo40: It could be 1, but it's the same thing.
12:29 PM Elmo40: it is in all CAD programs, visual or not. it is there in the code... the cylinder is a construction of 2 circles and a distance. the distance is the 'line'.
12:30 PM Tom_L: gregcnc as far as a cad definition it does
12:30 PM FinboySlick: It doesn't hurt anything in practice, I just think it breaks the surface flow and makes models uglier.
12:31 PM gregcnc: only time I see that stuff is when exporting from SW to IGES
12:31 PM Tom_L: most of the ones i've see start it on the right horizontal side
12:31 PM gregcnc: 0°
12:31 PM FinboySlick: Elmo40: I've only noticed it in OpenCASCADE based software but I suspect it's more a matter of commercial software creating exceptions in their representative model to remove those lines. I understand this is how tangent surfaces are handled internally.
12:32 PM Tom_L: sw iges doesn't really export that clean for me
12:33 PM Tom_L: i have lots better luck exporting iges from catia
12:34 PM FinboySlick: Tom_L: I remember learning Catia 4 on Solaris :)
12:34 PM Tom_L: alot of that is probably what i'm exporting it to as well
12:34 PM Tom_L: i'm pretty good at 5
12:34 PM FinboySlick: Though I did use 5 on windows shortly after.
12:34 PM Tom_L: my kids learned 5 & 6
12:34 PM Tom_L: 6 is cloud
12:34 PM Tom_L: but it's not called 6
12:35 PM FinboySlick: Cloud software will be the death of innovation :P
12:35 PM Tom_L: they took alot more classes than i did
12:35 PM Tom_L: the youngest is currently taking FT&A
12:36 PM Tom_L: something i'd never use
12:38 PM gregcnc: FT&A?
12:38 PM Tom_L: functional tolerance & annotation
12:38 PM gregcnc: i'ts not called GD&T anymore?
12:38 PM Tom_L: no
12:40 PM Tom_L: for those that don't use it, it puts all the dimensional data necessary in the model
12:40 PM Tom_L: usually divided in layers by department etc
12:41 PM Tom_L: so you only see what you need to
12:41 PM gregcnc: ah OK. I guess that's become acceptable/standard now?
12:48 PM Tom_L: anymore i think so
12:49 PM Elmo40: what is CATIA used for that Solidworks doesn't do? I hear guys saying CATIA is 'way better' but they don't explain at what.
12:49 PM Tom_L: it's alot more robust
12:49 PM Tom_L: costs alot more too
12:49 PM gregcnc: i'ts the standard in aerospace
12:50 PM Tom_L: aero, auto etc more and more are using it
12:50 PM Tom_L: just about all the shops around here use it i think anymore
12:51 PM Tom_L: does alot more than just draw parts
12:52 PM Tom_L: you basically buy what you need
12:53 PM Tom_L: Elmo40 they're put out by the same company
12:53 PM Tom_L: Dassault
12:54 PM Tom_L: maybe it's me but i think it's easier to get around in catia over sw but i never used sw enough to get used to it
01:04 PM Tom_L: i think it handles large assemblies better than SW too
02:43 PM Elmo40: i heard it was easier to do things
02:44 PM Elmo40: but i find Solidworks to be quite proficient.
02:46 PM FinboySlick: Elmo40: Catia used to be a completely different company, they bought Solidworks, probably because it was cheaper than to compete on price ;)
02:47 PM FinboySlick: That is, Dassault made Catia. But they bought Solidworks.
02:47 PM Elmo40: LONG time ago
02:47 PM Elmo40: why keep both.
02:47 PM Elmo40: just make a CATIA-light
02:48 PM FinboySlick: Probably much more complicated than selling an off-the-shelf, mature product as 'catia light'.
02:52 PM CaptHindsight: Catia and NX are similar in price and status
02:52 PM FinboySlick: NX canned their linux version too :(
02:52 PM Elmo40: well, i work well with Solidworks and MasterCAM
02:52 PM CaptHindsight: next tier down is Creo, SW
02:53 PM CaptHindsight: though industrial designers prefer Creo (Pro-E)
02:54 PM CaptHindsight: below that is autodesk inventor, solid edge, etc
02:54 PM CaptHindsight: an autodesk salesperson would likely disagree
02:55 PM Elmo40: https://www.ptc.com/en/products/cad/creo
02:55 PM FinboySlick: Autodesk tried really hard to be on par with Solidworks for a while.
02:55 PM Elmo40: i've been a CNC guy for almost 20 years and i've NEVER heard of this company!
02:56 PM Elmo40: Pro-E, I have heard of. Is that was CREO is?
02:56 PM CaptHindsight: Elmo40: it's used for lots of molds
02:56 PM CaptHindsight: yes
02:56 PM Elmo40: yeah, autodesk tries and tries...
02:56 PM Elmo40: ok, i know Pro-E.
02:56 PM CaptHindsight: Creo was Pro-Engineer
02:56 PM Elmo40: name changing is horrible
02:56 PM Elmo40: i liked pro-e
02:57 PM Elmo40: only toyed with it back in '03 or so
02:57 PM Elmo40: shit... i'm getting OLD!
02:57 PM Elmo40: >_<
02:57 PM CaptHindsight: SW, catia, NX all get the jobs done, some just have more built in features
02:57 PM FinboySlick: But marketting said 30% of the target age groups responded faforably to 'creo', especially in the semi-gendered demographic.
02:58 PM CaptHindsight: LGBTQ-M (m for machinists)
02:58 PM CaptHindsight: or masochists
02:59 PM Rab: Creo...sote? Maybe I'm not in their target age groups.
03:00 PM CaptHindsight: FinboySlick: semi-gendered, over gendered, under gendered, gender ambiguous
03:00 PM Elmo40: poly-gendered
03:01 PM Elmo40: you remember CadKey?
03:01 PM Elmo40: i think i still have an install disc for that. 1997 version
03:01 PM CaptHindsight: how many DOS cad apps were there?
03:01 PM Elmo40: ever use GibbsCAM ? It is interesting. Nothing like MasterCAM, though. Still quite powerful.
03:02 PM Elmo40: maybe 200? :-P
03:02 PM Elmo40: it wasn't DOS. it was win95 based.
03:02 PM CaptHindsight: i think I got free in the mail along with my Computer Shopper
03:02 PM Elmo40: LoL
03:04 PM Elmo40: https://upload.wikimedia.org/wikipedia/en/3/3d/Cadkey_wireframe.jpg
03:04 PM Elmo40: damn... brings back so many memories
03:04 PM CaptHindsight: IchGucks was working on the CAM for FreeCAD
03:04 PM CaptHindsight: not sure if they got any of his commits before they took down his github
03:05 PM Elmo40: i did like the 3-panel display. you could select a point from any of them, and another point for the other ones and modify the part.
03:05 PM Elmo40: why was he removed?
03:05 PM CaptHindsight: IF and I mean IF I were to work on 4+ axis CAM
03:05 PM CaptHindsight: I'm not sure if I would build on FreeCAD
03:05 PM Elmo40: no?
03:06 PM CaptHindsight: I'm used to NX, SW and catia, I tried freecad a couple times and I'm not really happy with the hops I have to jump through
03:06 PM CaptHindsight: hops/hoops
03:07 PM XXCoder: Elmo40: no idea, someone removed EVERYTHING. videos, etc'
03:08 PM XXCoder: so theres nothing left of ichs.
03:08 PM CaptHindsight: some German thing
03:08 PM CaptHindsight: was like he had to be scrubbed from the interwebs
03:09 PM XXCoder: pretty dumb
03:09 PM CaptHindsight: might have been as his request (will)
03:09 PM CaptHindsight: not very German to leave things hanging
03:09 PM XXCoder: maybe. still dumb
03:10 PM XXCoder: expecially git thing :(
03:10 PM CaptHindsight: dunno
03:10 PM XXCoder: he was working on freecad cam simulation
03:10 PM XXCoder: i dont know if it was included before git was gone
03:13 PM CaptHindsight: Elmo40: FDM is generally planar only in the Z
03:13 PM CaptHindsight: mainly due to the limitations of the software devs
03:14 PM XXCoder: theres new nonplanar printing
03:14 PM XXCoder: handles smaller curves better but not common yet
03:15 PM CaptHindsight: though they did come up with some tricks in dealing with crossing voids
03:16 PM CaptHindsight: getting thinner extrusions by moving the nozzle faster
03:17 PM CaptHindsight: XXCoder: new only to them
03:18 PM CaptHindsight: on the hardware side they never got a nozzle that would shut off fast enough to allow for raster scanning of multiple parallel nozzles
03:18 PM CaptHindsight: similar to inkjet
03:19 PM CaptHindsight: if you want fast thermoplastic parts then print a mold and inject
03:20 PM Tom_L: CaptHindsight, my first cad app was dos based and i still have it
03:20 PM CaptHindsight: i think mine ran on a Mac512
03:20 PM Tom_L: i don't use it but it's still loaded
03:21 PM CaptHindsight: same for PCB layout
03:23 PM Tom_L: i used eagle for that before autodesk and the one before them botched it up
03:23 PM Tom_L: tried pads and didn't care for it much
03:24 PM Tom_L: i'd probably have to re'learn it now it's been so long since i did a board
03:43 PM Deejay: gn8
03:45 PM _unreal_: hi
03:53 PM Tom_L: there goes the neighborhood.
03:53 PM Tom_L: :)
03:57 PM CaptHindsight: https://www.fabbaloo.com/blog/2019/9/2/possible-patent-infringement-by-non-planar-slic3r-development
04:20 PM Tom_L: who has the best lawyers and most money?
04:21 PM roycroft: oracle
04:24 PM Tom_L: in reference to the posted possible patent infringement
04:25 PM roycroft: i missed that reference
04:25 PM roycroft: but the answer is still oracle :)
04:25 PM roycroft: if they can figure out a way to get on the suin' bandwagon they'll leap on it
04:26 PM roycroft: although they're more into breach of contract suing than patent infringement suing
04:27 PM roycroft: as in "we signed a contract with you where you give us obscene amounts of money and in return we promise to do impossible things for you. we did not do the impossible things because, well, they are impossible, but you have obscene amounts of money so you will give it to us"
06:24 PM jthornton: XXCoder, I'm liking OctoPrint/OctoPi
07:36 PM jesseg: hey guys, thought you'd be interest to know that a mid 60's 15" Cincinnati Hydroshift lathe seems to work great without modification on a 7.5kw Chinesium VFD.
07:36 PM jesseg: I just tried it. I wasn't sure how it'd work because the lathe control box has a couple latching relays, so it needs power before it starts.
07:37 PM jesseg: I just turned on the VFD and use the lathe controls like I have 3 phase always on :P
09:42 PM _unreal_: going to have 2 parts for my daughters cnc machine milled tonight
09:42 PM _unreal_: finally
09:43 PM roycroft: i finally got started painting the power control box for my belt grinder
09:43 PM roycroft: but the rainy season arrived, suddenly and with gusto
09:44 PM roycroft: so i've had to spend a bunch of time dealing with that
09:44 PM roycroft: i.e. pulling things in from outside that should not get wet
09:45 PM _unreal_: that hurricane sucked all the wet weather so we are in a shot dry spell
09:46 PM roycroft: you really can't complain at all about the hurricane
09:46 PM roycroft: you could have been totally destroyed
09:46 PM roycroft: floridians are the luckiest people in the world right now
09:46 PM roycroft: which is not usually the case
09:47 PM roycroft: oh, i'm sorry
09:47 PM roycroft: i guess it's alabamans who are the luckiest
09:47 PM roycroft: they were predicted to be totally devastated
09:47 PM roycroft: but they escaped completely untouched
09:48 PM roycroft: they got lucky bigly
09:49 PM _unreal_: bigly heh
09:50 PM _unreal_: its funny how as good as my cad drawing is I keep finding little things to correct
09:50 PM _unreal_: as I generate my gcode. though I cant find any of them till I go to create the gcode
09:52 PM roycroft: my cad drawings tend to be pretty good, but that's because my first cad instructor was one of the the biggest nit-pickers i've ever encountered
09:52 PM roycroft: and i embraced his nit-picking as a challenge
09:52 PM _unreal_: I'm self taught
09:52 PM roycroft: and ended up with an a+ for the course
09:53 PM roycroft: i'm really glad i took cad classes
09:53 PM _unreal_: https://drive.google.com/open?id=1bEtuf4uRFn4xw0Ak_PECo-5kZgzVa_jk
09:53 PM _unreal_: what do you think of that then?
09:53 PM roycroft: i could have done almost as well had i learned on my own
09:54 PM roycroft: give me a minute to fire up a private browser and a vpn
09:54 PM _unreal_: ok...
09:54 PM _unreal_: I dont know how that will convert? I use design spark
09:54 PM _unreal_: depending on your software it may look funny
09:54 PM roycroft: oh, it' just a file to download
09:55 PM _unreal_: its an STL
09:55 PM roycroft: sorry, i don't think i ahve anything that will read that
09:55 PM _unreal_: how about SKP?
09:55 PM roycroft: dfx
09:55 PM Tom_L: solidworks should read stl
09:55 PM roycroft: pdf
09:55 PM roycroft: those would be fine
09:55 PM _unreal_: thats 2d
09:55 PM roycroft: solidworks will?
09:55 PM _unreal_: this is a 3D cad drawing
09:56 PM Tom_L: i think so
09:56 PM _unreal_: can solidworks read STL?
09:56 PM Tom_L: i think so
09:56 PM Tom_L: just drag and drop the file and see
09:56 PM roycroft: i'll maybe try to look at it later
09:56 PM roycroft: i'm making dinner right now
09:56 PM Tom_L: i would but i'm headin to bed
09:56 PM roycroft: and i'd have to move the file from one vm to another
09:56 PM Tom_L: and the cad pc is off
09:58 PM roycroft: i hate this
09:58 PM Tom_L: is that one part or an assembly?
09:58 PM roycroft: i'm making a quiche
09:58 PM roycroft: and it's almost done
09:58 PM roycroft: it smells amazing
09:58 PM roycroft: and i got started late, so dinner is going to be really late
09:58 PM roycroft: and i'm really hungry
09:58 PM _unreal_: if you have a phone handy install the google sketch up viewer app and you can look at the skp version
09:59 PM Tom_L: i'm gettin up early so i'll pass tonight
09:59 PM _unreal_: tool change
09:59 PM roycroft: i'm not going to install any google products on my phone
09:59 PM Tom_L: you must use a fruit product :)
10:00 PM roycroft: my phone is an iphone, yes
10:00 PM roycroft: and i trust apple only a tiny bit
10:00 PM roycroft: so i keep as much data off the phone as possible
10:00 PM Tom_L: anyway. gnite
10:00 PM roycroft: ciao
10:01 PM roycroft: the quiche appears to be done
10:02 PM roycroft: now i just need to let it rest for a few minutes, then i can finally eat dinner
10:04 PM _unreal_: I made curry chicken with yuka
10:04 PM _unreal_: put my daughter to bed an hour ago
10:06 PM _unreal_: I dont know why I'm so lazy. I really do need to deal with feeds/speeds I keep going with a MONO speed and manually adjusting the overide feed rate
10:24 PM flyback: Thousands of web servers have been infected and had their files encrypted by a new strain of ransomware named Lilocked (or Lilu). Infections have been happening since mid-July, and have intensified in the past two weeks, ZDNet has learned. Based on current evidence, the Lilocked ransomware appears to target Linux-based systems only.
10:42 PM flyback: https://jaycarlson.net/2019/09/06/whats-up-with-these-3-cent-microcontrollers/
11:18 PM _unreal_: so I just finished milling one of the parts that turned into a correction on its own
11:18 PM _unreal_: better then what I had designed to begin with
11:22 PM flyback: _unreal_, http://www.padauk.com.tw/upload/doc/PMS15A,PMS150C%20datasheet%20V106_EN_20190327.pdf
11:22 PM flyback: 3 frigging cent mcu