#linuxcnc Logs

Feb 04 2018

#linuxcnc Calendar

12:03 AM Cromaglious_: Anyone want 4 of the knockoff sonoff wifi modules? The PowStro Basic labeled Smart Home with the ESP8266, I'll sent to you for free, I just ordered 10 real Sonoff modules
12:06 AM Connor: What's wrong with the knockoff's ? :)
12:06 AM Cromaglious_: https://github.com/arendst/Sonoff-Tasmota/issues/1419
12:06 AM Cromaglious_: https://community.home-assistant.io/t/powstro-looks-same-as-sonoff/35403/4
12:06 AM Cromaglious_: I can't get them to connect...
12:06 AM Cromaglious_: but they are reprogramable with a little soldering
12:06 AM Cromaglious_: And I just ordered 10 real Sonoff's
12:07 AM Cromaglious_: hmmm I can give them away at the next ham radio club meeting
01:51 AM gloops: https://www.deskproto.com/products/multiax-ed.php
01:51 AM gloops: this is cheap for continuous 4th axis cam
01:51 AM gloops: and 5th axis indexing
01:55 AM gloops: i wonder how they know if you are using for hobby or commercial
01:59 AM fragalot: like a lot of software; they don't really.
01:59 AM fragalot: they expect you to be honest
02:00 AM fragalot: or if you order via purchasing@gloopsprofessionalmanufacturing.com as a hobbyist... :P
02:02 AM gloops: i suppose if you were selling files and models that can be traced
02:02 AM gloops: otherwise tax returns and stuff, i doubt that would happen
02:03 AM fragalot: well if you order the hobby software and ask for an invoice for your tax deductibles that may ring a bell
02:03 AM gloops: but is the hobby version limited
02:03 AM fragalot: no
02:03 AM fragalot: it says right there on the site saying that it's the flagship version
02:06 AM gloops: well i dont think theres a better deal than that then for 4 axis, i dont think any open source apps can do it
02:06 AM fragalot: fusion does it
02:06 AM gloops: continuous?
02:06 AM fragalot: what do you mean with continuous
02:07 AM gloops: so the rotary axis moves simultaneous with the cartesian axis
02:07 AM gloops: not indexing
02:08 AM gloops: with indexing the rotary moves, stops, then the 3 axis moves
02:08 AM fragalot: Ah, no idea.
02:08 AM gloops: indexing is fairly easy, its easy enough to add indexing to a 3 axis code by hand
02:09 AM gloops: continuous is a whole different ball game
02:09 AM fragalot: 4-axis machining
02:09 AM fragalot: Rotate the part using the A axis of your machine to create toolpaths for 4 axis indexing or wrap toolpaths.
02:09 AM fragalot: does 'wrap toolpath' count as continuous?
02:09 AM gloops: yes thats indexing/wrapping
02:09 AM gloops: no
02:09 AM fragalot: in that case it doesn't. :P
02:10 AM gloops: wrapping is the same as indexing
02:10 AM gloops: if you imagine you have a 2d drawing on a piece of paper, then roll the paper up so the drawing goes around it - thats wrapping
02:11 AM gloops: the machine doesnt know there is any rotary movement, the 2d image is sliced, the rotary steps one and stops every time a slice is machine
02:12 AM fragalot: it doesn't "stop" when wrapping
02:12 AM gloops: it does
02:12 AM fragalot: if you for example cut a pocket, it will rotate the 4th axis to cut it out
02:13 AM gloops: it only rotates the 4th as an x (or y) move
02:13 AM fragalot: true
02:17 AM gloops: if X is the linear of the cylinder, and you want a pocket, the cut can only take place at a radius to the cylinder, only the x moves while cutting, the the 4th is acting as the y in effect, while each slice is positioned for x to cut
02:20 AM Deejay: moin
02:20 AM gloops: howdy
02:22 AM fragalot: gloops: easy to solve though; add a 5th axis ;-)
02:22 AM fragalot: makes up for the lack of performance in your cam package
02:23 AM gloops: this is 2 rotary axis acting simultaneous with a cartesian co-ordinate system, your circle maths better be up to scratch
02:24 AM pink_vampire: gloops: hi
02:25 AM gloops: moin
02:26 AM fragalot: hi
02:26 AM pink_vampire: there is a trick to work with 4th axis as your y axis
02:26 AM pink_vampire: hi fragalot
02:28 AM Deejay: nice, it begins to snow :)
02:30 AM gloops: there isnt that much point trying to make a 5 axis, unless for curiousity or the challenge etc, students or developers, maybe some niche commercial product or service
02:31 AM pink_vampire: he work soo hard for that http://www.instructables.com/id/USB-Volume-Control/
02:31 AM pink_vampire: what i did https://i.imgur.com/rEVPMal.jpg
02:31 AM fragalot: gloops: enjoy making an impeller blade without one?
02:32 AM gloops: well if you want to make impeller blades for some reason
02:32 AM pink_vampire: or ring..
02:32 AM gloops: to make money the small concern can generate the same revenue with a 3 axis machine in the same time
02:32 AM fragalot: it seems that one of my ad blockers does not like instructables
02:32 AM fragalot: can't see any of the images
02:33 AM pink_vampire: reboot
02:33 AM fragalot: no need to reboot
02:33 AM fragalot: it doesn't seem to be uBlock.. maybe it's the pihole
02:36 AM Wolf__: fancy mouse…
02:37 AM pink_vampire: 99$ and the scroll wheel was junk (common issue) so i modify it
02:37 AM gloops: i dont know what stepper shafts are made of, coated drill bits just polish them
02:37 AM pink_vampire: and from then is the beeeest mouse i ever had
02:37 AM fragalot: gloops: case hardened?
02:39 AM gloops: can get through a couple of mm, but would take some bits to get all the way, strange, they file ok
02:39 AM fragalot: slow rpm, plenty of feed may help; it's possible that it's just work hardening very quickly
02:39 AM fragalot: alternatively, carbide.
02:40 AM fragalot: why are you drilling it though? Are you going to pin it on?
02:40 AM gloops: yeah a milling cutter would be better, no got one small enough left
02:40 AM gloops: was thinking of a tapered pin with threads on one end
02:41 AM fragalot: hope you have a spare taper reamer if it's that difficult, lol
02:42 AM Wolf__: I use a G700s, but my two main computers I have kensington trackballs…
02:42 AM gloops: i think it would lock ok if the taper only catches one side of the shaft
02:42 AM fragalot: I love my "performanceMX" but there is one little snag that I HATE about them
02:42 AM Wolf__: pretty sure stepper shafts are hardened
02:43 AM fragalot: all of the ones i've had fail after 2 years with the same issue
02:43 AM fragalot: they all start to double-click
02:43 AM fragalot: which is mighty annoying
02:43 AM fragalot: gloops: it won't, taper pins work only if they contact the full length
02:44 AM gloops: the problem at present is the screws do not have enough thread in contact, only about 4mm, the ones in deeper threads are holding fine
02:44 AM Wolf__: use clamping hubs
02:44 AM fragalot: gloops: can you use a dog screw in the partial hole you drilled
02:44 AM gloops: fragalot it would if had a nut on the other end
02:44 AM Wolf__: everything else sucks imo
02:44 AM fragalot: I agree with Wolf__
02:45 AM fragalot: clamping hubs are great
02:45 AM fragalot: i'm off -- ttyl
02:45 AM gloops: Wolf yes thats the alternative, but as i am making them, a bit more work
02:45 AM Wolf__: adapt shit
02:45 AM gloops: have a nice day
02:46 AM Wolf__: drill spilt clamp type shaft collar in to a mounting solution
02:46 AM gloops: i was going to do this during the build, but got the sense that i was behind and skipped it - didnt save any time at all cos ive got to do it now
02:48 AM gloops: ill make something from steel with some bolts that i can nip up properly
02:52 AM gloops: what i should really do is scale down the pulley sizes, 60 tooth pulley on a 10mm shaft is ridiculous
02:54 AM gloops: the gearing from the circumference of the pulley to the shaft, rapid change of direction at 6000mm/min puts some fair ripping firce on the grub screws
02:59 AM archivist: trying to go too fast
02:59 AM archivist: slow the acceleration will reduce max torque
04:08 AM pink_vampire: hi
04:08 AM miss0r: hello
04:08 AM pink_vampire: i need air valve
04:09 AM miss0r: o_0
04:09 AM pink_vampire: something that pass air as long as it get power
04:10 AM fragalot: pink_vampire: so a solenoid?
04:10 AM fragalot: does it need to vent the air if you switch power off, or is this going to an open circuit
04:10 AM fragalot: miss0r: is the servo mounted yet?
04:10 AM pink_vampire: just open and close
04:11 AM miss0r: fragalot: Not yet. Paying orders keep getting in the way
04:11 AM fragalot: pink_vampire: any solenoid valve will work then
04:11 AM pink_vampire: like electric version of ball valve
04:11 AM fragalot: miss0r: bah! those pesky orders.
04:11 AM fragalot: pink_vampire: electrically actuated ball valves are expensive (and slow)
04:11 AM fragalot: pink_vampire: what voltage, and what size ports?
04:12 AM pink_vampire: 1/4" npt 125psi
04:12 AM fragalot: pink_vampire: also - how robust should it be? (eg. is plastic acceptable)
04:12 AM fragalot: https://www.ebay.co.uk/itm/1-4-NPT-12V-DC-Electric-Solenoid-Valve-12-Volt-DC-NC-RO-Air-Water/332422909865?hash=item4d65f30fa9:g:8PIAAOSwVlVZ7fBN <= 12V version here but you can get them on any voltage really
04:13 AM fragalot: the only thing you need to take into account is that the smaller the valve is, the lower the maximum airflow
04:13 AM pink_vampire: it need to be the main valve for the mist
04:15 AM fragalot: do you know what he air consumption is of the mister?
04:15 AM pink_vampire: about 20psi max
04:15 AM fragalot: that's pressure, consumption is in CFM
04:16 AM pink_vampire: and it need to disconnect it from the compressor and vent the air out of the system
04:16 AM fragalot: does the air not vent through the mister?
04:16 AM pink_vampire: almost nothing
04:16 AM fragalot: you can get 2-way solenoid valves, which are basically just a switch
04:16 AM fragalot: 3-way valves are a switch with relief
04:17 AM pink_vampire: 3 way will be better
04:17 AM fragalot: what voltage is your electrical signal
04:17 AM fragalot: 12V, 24V, 110AC?
04:17 AM pink_vampire: 12v
04:18 AM fragalot: https://www.ebay.co.uk/itm/1-4-DC12V-3way-2position-Pneumatic-Electric-Solenoid-Valve-NPT-Air-Aluminum-C/202087233567?hash=item2f0d56781f:g:OckAAOSwZC1Z6wO8
04:18 AM fragalot: if you search for 1/4 NPT 12V 3-way solenoid you will find tons of valves
04:18 AM pink_vampire: i'm in the us
04:19 AM fragalot: I'm sure they sell these on the US ebay too :-)
04:19 AM pink_vampire: what is 5 way??
04:21 AM fragalot: 5/2 valves are typically used for cylinders
04:21 AM fragalot: 5 ports - 2 positions
04:21 AM fragalot: position 1 -> move piston up, position 2, move piston down
04:21 AM pink_vampire: mmm
04:23 AM fragalot: https://images.duckduckgo.com/iu/?u=http%3A%2F%2Fslideplayer.com%2F719758%2F2%2Fimages%2F25%2F5%252F2%2BValves%2BPort%2B4%2BConnects%2Bto%2Bother%2Bcomponents.jpg&f=1
04:23 AM fragalot: that's the symbol, in this symbol you see a bunch of arrows, and usually a "square" per position
04:23 AM fragalot: in this case, 2 positions
04:24 AM fragalot: the ports will open in the direction of the arrows in the corresponding position
04:24 AM pink_vampire: i see what you mean
04:27 AM pink_vampire: https://www.ebay.ca/itm/U-S-Solid-1-4-NPT-3-Way-2-Position-Pneumatic-Electric-Solenoid-Valve-DC-12-V/272335306885?hash=item3f68730085:g:mN8AAOSw0hRZcweC
04:27 AM pink_vampire: this is good?
04:28 AM fragalot: rated for operating at max. 116PSI, but will be safe up to 174
04:29 AM fragalot: and it's only designed to start working at 20psi
04:29 AM pink_vampire: :(
04:29 AM pink_vampire: no luck
04:30 AM fragalot: you said it would work at 20psi right?
04:30 AM fragalot: or is it running at 125
04:30 AM pink_vampire: the main tank is 125 psi
04:31 AM pink_vampire: then it need to go to the electric valve, and then to the reguletors
04:33 AM fragalot: could you have the regulator before the valve?
04:33 AM pink_vampire: there is 2
04:33 AM fragalot: valves that run 125psi are much more expensive
04:33 AM pink_vampire: one sec i will take a picture of the system
04:34 AM jthornton: morning
04:34 AM fragalot: hey jthornton
04:35 AM pink_vampire: https://i.imgur.com/TglfKRi.jpg
04:37 AM jthornton: that's a quick connect not a valve
04:37 AM fragalot: jthornton: she wants a 3/2 solenoid valve there
04:38 AM jthornton: ah
04:38 AM fragalot: issue is that it runs at 125psi at that point, which is outside the rating for most valves
04:39 AM fragalot: pink_vampire: You'll just have to look for either a higher pressure rated valve, or put a regulator in front of it to drop it down a bit :-)
04:39 AM fragalot: pink_vampire: one way that we sometimes cheat our way out of this at work is by having one regulator for the highest pressure we need (eg. the air of the mister), the solenoid, and then a Tee to the regulator for the liquid, and to the mister
04:40 AM jthornton: or turn back the main pressure switch 5 psig
04:43 AM fragalot: super shitty sketch: https://imgur.com/a/SeDfv
04:44 AM fragalot: if jthornton's way is an option, sure.
04:45 AM pink_vampire: i see what you mean
04:45 AM pink_vampire: I almost order one
04:45 AM pink_vampire: now i try to see where the cables go it to the valve
04:46 AM pink_vampire: I must say, that your info is SUPER helpful i almost got some junk from china!
04:47 AM fragalot: happy to help
04:47 AM fragalot: brb
06:05 AM miss0r: Funny little order I just had to do; Replace the nozzle on a soap dispenser :] Apparently it is a part of a realy expensive designer sink, that comes with a water tap and a soap dispenser. And you cannot get spare parts for it. The nozzle on this one was eaten up from the inside by the soap. :]
06:06 AM miss0r: it was made of chromed brass. Not it is a A4 stainless with a high polish.
06:06 AM fragalot: ha.
06:06 AM jthornton: nice
06:07 AM miss0r: Funny small job :]
06:07 AM miss0r: But the money is good, so I'm not complaining
06:09 AM miss0r: I just need to clean up the lathe, and I'm back to working on installing the servo :D
06:10 AM fragalot: :D
06:10 AM miss0r: fragalot: You have me curious; what do you do for a living? you seem to know alot about 'stuff' :)
06:11 AM fragalot: I dabble.
06:11 AM fragalot: :P
06:13 AM miss0r: lol
06:13 AM miss0r: fine, be mysterious about it ;)
06:13 AM fragalot: :)
06:13 AM archivist: we will work it out eventually
06:14 AM fragalot: I'm sure you will.
06:14 AM miss0r: hehe
06:15 AM archivist: I dont think miss0r has worked out what I am supposed to be really :)
06:16 AM fragalot: that's easy
06:16 AM fragalot: you store piles of paper in cabinets
06:16 AM fragalot: and then retrieve them when someone needs them
06:16 AM fragalot: a soon to be obsolete job, really
06:16 AM archivist: that is only a hobby
06:17 AM miss0r: archivist: I do believe I know what you do
06:17 AM miss0r: A freelance/selfemployed machinish. That is what I always assumed anyway
06:18 AM MarcelineVQ: archivist is a sports announcer
06:18 AM miss0r: for the para olympics
06:19 AM archivist: miss0r, that was after I was made redundant, not what I was trained for :)
06:20 AM archivist: cnc attracts those that have multiple interests :)
06:20 AM miss0r: hmm. Then I have no idea
06:21 AM miss0r: care to elaborate? or will you join the mystery team?
06:23 AM archivist: electronics
06:24 AM fragalot: hooray for pixie-wranglers.
06:26 AM miss0r: archivist: So, you used to solder commodores on the production line? :P
06:27 AM archivist: I was soldering before the PET was invented :)
06:28 AM miss0r: hehe
06:30 AM archivist: still have my PET, with added S100 bus and memory cards
06:37 AM fragalot: I love what robin renzetti's doing to his deckel clone
07:14 AM leinexG: Hallo was ist besser wenn ich eine cnc Fräse brauche, Selbstbau oder ne fertige kaufen?
07:16 AM leinexG: Ich würde gerne Möbel damit bauen, also nen großen Tisch (1,30m x 2,50 ) mit Vakuum Table und Absaugung.
07:17 AM leinexG: hat jemand Erfahrung mit Selbstbau vs China Maschine?
07:18 AM miss0r: Perhaps if you ask that in english, more people could answer ;)
07:19 AM IchGucksLive: hi
07:19 AM miss0r: IchGucksLive: hello
07:20 AM miss0r: You getting any snow at the moment?
07:20 AM Tom_L: 29F
07:20 AM IchGucksLive: leinexG: Servus ich bin in Zweibrücken
07:21 AM IchGucksLive: miss0r: snow coverd outside
07:21 AM leinexG: OK - i try to do my best... I#ve search for any experiance with a cnc milling machine for woodwork (furniture in general). I need a machine for cheap (only hobby use) but i would need a machina capable of wood sheets 4ft x 8 ft
07:21 AM IchGucksLive: leinexG: es geht auch in deutsch
07:21 AM SpeedEvil: 4*8 means your machine gets a lot larger footprint, and you eed a pretty large shop
07:22 AM IchGucksLive: leinexG: ich bin der Typ hier https://www.youtube.com/channel/UCmwhCL92ZQRSVqFe3jGwJSQ/videos
07:22 AM SpeedEvil: Do you mean actual milling, or do you mean just mostly cutting sheets out.
07:22 AM leinexG: thats no issue i have a big workshop i live in a old water mill
07:22 AM IchGucksLive: leinexG: Drück mal doppelt auf meine namen
07:22 AM fragalot: IchGucksLive: do you have some kind of log file that lets you see the parts before you join?
07:22 AM leinexG: milling - i want to build furniture for cars
07:22 AM leinexG: mobile homes
07:23 AM fragalot: k
07:23 AM IchGucksLive: leinexG: eigenbau ist das beste
07:23 AM leinexG: ah sowas dachte ich schon .... also lieber keien China Ware?
07:23 AM IchGucksLive: http://heimwerkermarkt-tretter.de/holzcnc.jpg leinexG
07:24 AM IchGucksLive: das hier kanste mit nur dem Akuschrauber zusammen fummeln
07:24 AM IchGucksLive: du brauchst ja keine 200mm Z
07:24 AM IchGucksLive: OBI Hornbach sägt die tiie teile
07:25 AM leinexG: Nee ich bekomme große Platten billig (leider nich gesägt ...)
07:25 AM IchGucksLive: die maschine Frame liegt bei 80Euro
07:26 AM leinexG: mir wäre glaube ich ein Selbstbau der aber bisschen robuster ist (Industrielle Lagerungen und Führungen) lieber
07:26 AM IchGucksLive: elektronik als set http://heimwerkermarkt-tretter.de/3achs_elek
07:27 AM leinexG: das schaut schonmal gut aus... elektronik ist aber nur für die Achsensteuerung oder ? Ich brauche dann noch nen Frequenzumrichter für die Spindel oder?
07:28 AM leinexG: bzw noch Netzteile für die Versorgung ?
07:28 AM IchGucksLive: also der Start sieht meist so aus http://www.ebay.de/itm/EU-Square-Linear-Rail-Guide-L-400-700-1000mm-SFU1605-Ballscrew-with-Nut-HGH20-/162871185390
07:28 AM IchGucksLive: WELCHE masse brauchst du
07:29 AM IchGucksLive: DAS ergibt 750x550x150mm
07:29 AM IchGucksLive: DAMIT geht auch aLU
07:29 AM IchGucksLive: leinexG: drück mal auf meine namen
07:30 AM leinexG: wie meinst Du das ?
07:30 AM leinexG: ich bin neu mit der IRC Show
07:31 AM IchGucksLive: es gibt eine privateren Bereich damit der hauptkanal nicht von Anderen Sprachen geflutet wird
07:32 AM IchGucksLive: leinexG: Eelktronik Komplett http://www.ebay.de/itm/EU-3-Axis-Nema23-112mm-Dual-Shaft-Stepper-Motor-425oz-CNC-Kit-3A-CW5045-Driver-/162871078845
07:35 AM IchGucksLive: Gib mal antwort im Chat
09:08 AM Alkabal_: hi, do you know how to open (load) gcode from gmoccapy ?
09:10 AM archivist: I would expect a file,open dialog
09:12 AM archivist: I see the docs just point at videos for usage, a bit silly
09:19 AM Alkabal_: i no have any open dial box
09:19 AM Alkabal_: only found open file at startup in menu parameters
09:33 AM archivist: http://linuxcnc.org/docs/html/gui/gmoccapy.html#_basic_usage
09:38 AM IchGucksLive: hi
09:38 AM IchGucksLive: Alkabal_: icon above Settings 4th topDown
09:38 AM IchGucksLive: then botemline almost left
09:39 AM IchGucksLive: the open dialog
09:39 AM IchGucksLive: 3Klichs from homing to run
09:39 AM IchGucksLive: DAM easy
09:40 AM archivist: icons without words are not easy
09:40 AM IchGucksLive: Thats the Best World wide use
09:40 AM IchGucksLive: oh in simulation its the 5th from top
09:41 AM IchGucksLive: the icon with the mashine workflow
09:42 AM IchGucksLive: Alkabal_: ?
09:43 AM Alkabal_: hi
09:43 AM IchGucksLive: hi
09:43 AM Alkabal_: i restart and check
09:43 AM IchGucksLive: did you get it
09:43 AM IchGucksLive: i canm ake a small video for you if you prefer
09:43 AM Alkabal_: not for the moment
09:45 AM Alkabal_: i try myself
09:45 AM IchGucksLive: if you keep the Mouse over the icon it will Tell you
09:46 AM IchGucksLive: Easy to use if you are more confident
09:46 AM IchGucksLive: Alkabal_: Try the SIM first
09:50 AM IchGucksLive: later
09:53 AM Alkabal_: ok i think i understand but the button is grey
09:55 AM Alkabal_: i can't click
09:55 AM Alkabal_: ok make home before
09:55 AM Alkabal_: many thanks
09:55 AM Alkabal_: i can navigate to folder now but i does not see any of my .gcode or .ngc file
10:19 AM JT-Shop: Alkabal_: the default extension is .NGC in caps, unless you configure other extensions you can't see them
10:34 AM laminae: JT-shp: still around?
10:34 AM laminae: JT-Shop: spelling is hard
10:35 AM JT-Shop: for a minute or so
10:35 AM laminae: Word on the street is you are the man if someone is looking to acquire a 7i76e, any chance that's true?
10:37 AM JT-Shop: when I get them back in stock yes
10:38 AM JT-Shop: Alkabal_: if your using HexChat you can use tab completion for user names
10:38 AM laminae: On my laptop so i'm using the web client at the moment
10:39 AM laminae: But awesome, any chance that will be within the next few weeks?
10:39 AM JT-Shop: I would think so
10:40 AM gloops: well no machine work today, back at it tommorrow
10:40 AM laminae: Cool, i'm not in a huge rush but if it were going to be several months i'd look for alternatives
10:40 AM JT-Shop: 3-4 weeks I think
10:40 AM JT-Shop: gloops: I split firewood all morning
10:40 AM JT-Shop: time for my nap
10:41 AM laminae: Cool beans
10:41 AM gloops: a day away from it probably helps
10:42 AM JT-Shop: laminae: http://linuxcnc.org/docs/2.7/html/config/ini-config.html#_filter_section
10:42 AM JT-Shop: how to add other extensions
10:42 AM JT-Shop: I take back the all caps that is a fault of OneCNC not LinuxCNC
10:44 AM laminae: Think you might have selected the wrong tag
10:46 AM JT-Shop: ah yea
10:46 AM JT-Shop: Alkabal_: I take back the all caps that is a fault of OneCNC not LinuxCNC
10:46 AM JT-Shop: time for my nap I see
10:46 AM laminae: Has anyhone tried using a linux distro on chromebox? seems like it has all the hardware requirements
10:46 AM laminae: https://www.newegg.com/Product/Product.aspx?Item=N82E16883220572&ignorebbr=1&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC-_-pla-_-Desktop+PC-_-N82E16883220572&gclid=CjwKCAiA-9rTBRBNEiwAt0Znwz2-zXpr43ffv1zPuyqWxw-MqmwmHX0Mjl5efYPMPzaAfEEcR2dLcRoCPfMQAvD_BwE&gclsrc=aw.ds
10:46 AM Tom_L: JT-Shop how's the temp?
10:46 AM Tom_L: seems to be dropping here
10:47 AM Tom_L: maybe it's just the wind
10:47 AM JT-Shop: not bad but when your splitting firewood you get that extra heat up front lol
10:47 AM JT-Shop: 45°F
10:47 AM Tom_L: 20F
10:47 AM Tom_L: hah it is
10:48 AM Tom_L: 29 when i got up
10:52 AM CaptHindsight: 13F and snowing
10:52 AM jthornton: laminae: https://www.newegg.com/Product/Product.aspx?Item=N82E16883220572 you can drop everything after the item number in your link
10:53 AM laminae: Ah, thanks for the info
10:55 AM CaptHindsight: gloops: how often do you have deadly train wrecks in the UK? one a week here lately
10:56 AM archivist: one a year or less
10:56 AM archivist: not counting people jumping in front
10:57 AM CaptHindsight: yeah, what I meant, not jumpers
10:58 AM Alkabal_: i'm come back sorry
10:58 AM archivist: similar ratio for electrical house fires :)
11:01 AM CaptHindsight: archivist: in the USA "Home electrical fires account for an estimated 51,000 fires each year, nearly than 500 deaths, more than 1,400 injuries, and $1.3 billion in property damage. "
11:02 AM archivist: I was looking the ratio up a year or three ago
11:02 AM CaptHindsight: from the FEMA site 2009-2011 25,900 residential building electrical fires were reported to fire departments within the United States each year. These fires caused an estimated 280 deaths, 1,125 injuries and $1.1 billion in property loss
11:02 AM archivist: gun crime is the other huge difference
11:03 AM CaptHindsight: so looks like they are going up or they use different numbers
11:03 AM archivist: and police dont kill many
11:03 AM CaptHindsight: still way higher than in the UK
11:03 AM CaptHindsight: it's a right here
11:07 AM CaptHindsight: Jul 1, 2017 - Police nationwide shot and killed 492 people in the first six months of this year, a number nearly identical to the count for the same period in each of the prior two
11:08 AM CaptHindsight: https://www.statista.com/statistics/319246/police-fatal-shootings-england-wales/
11:10 AM CaptHindsight: well thats the price of freedom, not like you commies in the UK :)
11:24 AM Tom_L: they gotta bag their limit ya know
11:27 AM gloops: hmm, there was biggish train smash here a few years ago, cant remember many recently
11:27 AM gloops: hardly surprising when the track maintenance staff are picked up from the boozer to work night
11:27 AM gloops: nights
11:28 AM archivist: tram driver was the last proper crash iirc
11:28 AM archivist: too fast around a bend
11:31 AM gloops: yeah remember that, didnt he pass out or fall asleep or something?
11:32 AM gloops: been a few incidents at un-manned level crossings
11:32 AM archivist: asleep
11:34 AM gloops: theres usually a dead mans handle on rail locos, think there was some debate over that
11:35 AM Loetmichel: gloops: those dead man switches were defeated minutes after they were introduced
11:35 AM archivist: with some "skill" they can lean forward to hold it down with no effort
11:36 AM Loetmichel: i have personally seen a lunchbox with a weight in it and a small motor to simulate a human operating a "dead man pedal" at irregular intervals
11:36 AM gloops: well its only a second chance measure, not failsafe
11:37 AM Loetmichel: archivist: the dead man pedals in german train engines were a kind of "seesaw" in the floor you had to switch positions every 30 secs or so
11:37 AM Loetmichel: so the train egineers came up with "ingenious" devices that defeated that.
11:38 AM Loetmichel: you couldnt just press it one way
11:38 AM Loetmichel: you had to flip it constantly
11:38 AM gloops: the locos at the local pit, shunters had a hand that had to be kept at 45 degrees i think, old stuff though im going back years and years
11:38 AM gloops: handle not hand
11:41 AM IchGucksLive: hi
11:52 AM gloops: no resonance on 1350mm long 16mm screw @ 1200 rpm
11:53 AM gloops: the nook industries calculator was wrong
11:53 AM IchGucksLive: it may be around 1200
11:53 AM gloops: maybe not much to go yeah, but no sign of it starting
11:54 AM IchGucksLive: is it the set of 1350x1350
11:54 AM gloops: yeah
11:54 AM IchGucksLive: what did you get out 1050
11:54 AM IchGucksLive: or even 110
11:54 AM IchGucksLive: 1100
11:55 AM IchGucksLive: stiff driveway
11:55 AM gloops: only had it to 5m/min atm, screw is fine - doesnt look like vibrating at all
11:55 AM IchGucksLive: gantry
11:56 AM IchGucksLive: what did the secend scewe charge
11:56 AM gloops: their calculator says 850 rpm for 1350 long
11:57 AM gloops: the gantry screw is only 1000mm - but only had it to 5m/min, not tried any faster, works fine
11:57 AM IchGucksLive: the drive way or the screw length
11:57 AM IchGucksLive: 1000
11:57 AM gloops: 1000 total
11:58 AM IchGucksLive: so only 760mm drive way
11:58 AM gloops: about 870 drive?
11:58 AM gloops: its over 850 i know, cant remember last time i measured
11:59 AM IchGucksLive: ok
11:59 AM IchGucksLive: did you move tests 0,1 up to Double pitch for a while
11:59 AM laminae: I have a whole bunch of spare limit switches from 3d printer builds, and i see that gecko drivers have a spare i/o and looks like 7i76 stupports pretty much anything i'd need, but i'm assuming i'd need a pull down resistor or can i wire right into the gecko?
12:00 PM IchGucksLive: Gecko is ground to Nill
12:00 PM gloops: no, not done a lot of testing yet, had a break today, i ran it up and down and messed about with stuff a bit - pulleys slipping when i run gantry fast, will do that tommorrow
12:01 PM IchGucksLive: gloops: do you got 2 dials
12:01 PM gloops: i have yeah
12:01 PM laminae: Thanks
12:02 PM IchGucksLive: woudt you please do a test this week i wpoudt rely on you to go for the set on 8mashines
12:02 PM gloops: what test? im not an engineer you know lol
12:03 PM IchGucksLive: you set the TEST 0,1 back forth with 0,2 steps up to 10mm all 50mm over the entirer 850 mm on 2500mm/min and drive back to dial
12:04 PM IchGucksLive: i got my dials set to -10
12:05 PM gloops: so 0 > 850 in 10mm steps, then back to dial at start?
12:06 PM gloops: is TEST a feature of linuxcnc?
12:07 PM IchGucksLive: i give you a ngc
12:08 PM gloops: should be able to try it sometime in the week
12:28 PM gloops: https://www.ebay.co.uk/itm/twin-drilling-tool/302624546160?
12:31 PM IchGucksLive: hi BACK
12:31 PM IchGucksLive: we got snw poweroutige
12:31 PM IchGucksLive: im on Baterie Generator
12:32 PM IchGucksLive: gloops: do you got a python interpreter like SPE installed
12:33 PM IchGucksLive: gloops: ?
12:34 PM IchGucksLive: JT-Shop: ?
12:35 PM IchGucksLive: Alkabal_: dies gemocappy now run as expected
12:38 PM gloops: no idea Ichs, just linux mint
12:38 PM IchGucksLive: can you look if SPE is in the REPRO
12:38 PM IchGucksLive: sudo apt-get install spe
12:40 PM gloops: whats this for Ichs?
12:41 PM IchGucksLive: generating python code for programming and you generate the test files
12:41 PM IchGucksLive: as you need them
12:42 PM gloops: kiki?
12:44 PM gloops: stans python editor
12:44 PM gloops: ill have to get round to learning python
12:46 PM IchGucksLive: gloops: https://pastebin.com/JysTq246
12:46 PM IchGucksLive: it will generate testX in the folder you save the python
12:46 PM IchGucksLive: i use nc_files TESTING
12:46 PM IchGucksLive: you can play with the numbers
12:47 PM IchGucksLive: stepwide constend stepwide
12:47 PM IchGucksLive: length ofsets ..
12:48 PM IchGucksLive: i shoudt modify this for direct axis support opening
12:50 PM IchGucksLive: gloops: ?
12:52 PM gloops: sorry will have to look later Ichs, being called away - do i just load that script in stani and run it?
12:52 PM IchGucksLive: yes
12:52 PM gloops: ok thanks will look later
12:53 PM miss0r: Does any of you know if I can get a 25t 5.8mm spline extender (for an RC servo). I want to be able to mount a longer shaft on said spline
12:54 PM IchGucksLive: miss0r: http://www.myrcbox.com/articles/tech-article-standard-size-servos-splines-guide/
12:55 PM miss0r: I know the size of the spline, I just don't think I'll be able to make one here, with the tooling i've got
12:56 PM IchGucksLive: what servos you using mg996
12:56 PM miss0r: one called AR-3606HB
12:58 PM IchGucksLive: whow 70N
12:59 PM miss0r: 0.65nm
01:00 PM Alkabal_: IchGucksLive : no display nothing in thd folder nc_files
01:00 PM IchGucksLive: did you try the cheeper mg996
01:01 PM IchGucksLive: Alkabal_: you need to put your ngc files there
01:01 PM Alkabal_: yes off course
01:01 PM IchGucksLive: the File must end at .ngc
01:02 PM Alkabal_: i have 4 files that can be loaded by axis or by the option open at startup from gmoccapy
01:02 PM IchGucksLive: did you check by hand if they are there
01:02 PM Alkabal_: yes off course
01:02 PM IchGucksLive: whear
01:02 PM Alkabal_: but i'm on machinekit
01:02 PM Alkabal_: so they can have other issue that linuxcnn
01:02 PM IchGucksLive: ok never worked on that
01:03 PM Alkabal_: i think better way is try to customize axis
01:04 PM Alkabal_: of foudn issue and customize gmoccapy but i'm not sure about pendant hb04 with other gui than axis
01:04 PM IchGucksLive: i use hb04 only with axis
01:04 PM IchGucksLive: wores fine on costemising
01:04 PM Alkabal_: don't know too if cetus exist with linucnc and are able to use hb04 too
01:04 PM IchGucksLive: yu can even get all icons to work
01:05 PM Alkabal_: in relality i like to order the new one whb04b
01:05 PM Alkabal_: don't know if they are full managed or partial
01:05 PM IchGucksLive: the wirerless trouble mutch as they got a timeout
01:05 PM Alkabal_: better to use wirered ?
01:06 PM IchGucksLive: and then the sets are nort as you ilike
01:06 PM IchGucksLive: i only got wirerd
01:06 PM IchGucksLive: it stay even in the heviest EM situation up to the datas
01:15 PM IchGucksLive: Gn8
01:51 PM laminae: You guys use shielded wire to your steppers?
01:54 PM Alkabal_: yes is better for ena dir step
01:54 PM Alkabal_: connect only shield to gnd on board not on the driver side
01:57 PM laminae: Isn't the driver going to share ground with the board anyway? but will do
02:00 PM Alkabal_: no
02:01 PM Alkabal_: you need to wire Ena+ to gpio and ena- to gnd same for other
02:02 PM Alkabal_: and connect shield only to board
02:03 PM Alkabal_: this is ok if your board have 5v gpio output
02:10 PM laminae: Should be 5v, using mesa 7i76
02:12 PM laminae: I had initially intended to use a 36v power supply to run steppers and the 7i76 but that's higher imput voltage than the board and i'm not sure if i should isolate the board with its own psu
02:14 PM pcw_home: 36V is too high for the 7I76 field power ( and not standard for relays or proximity switches etc )
02:14 PM SpeedEvil: https://www.cesdb.com/west-point-bridge-designer.html
02:15 PM laminae: I suppose i should clarify, should i use a 24v supply the power everything or use a 36v to run the motors and a separate psu to run the board and drivers?
02:15 PM pcw_home: 24V for I/O power 36V for steppers only
02:16 PM laminae: Ultimately my spindle will be running on a vfd and that's a separate can of worms i haven't tackled yet
02:17 PM laminae: So two power supplies, got it, thanks
02:57 PM * gloops lights pipe of home grown bacca
03:08 PM evilren: wtf is bacca
03:08 PM gloops: have a guess?
03:09 PM evilren: oh tobacco?
03:09 PM evilren: thats bad for you, you should dab cannabis concentrates instead
03:10 PM gloops: never bothered with cannabis
03:10 PM Tom_L: what's up today?
03:11 PM CaptHindsight: some football game on later I hear
03:11 PM Tom_L: pfft i forgot about it
03:11 PM Tom_L: i probably won't remember then either
03:12 PM CaptHindsight: it's a good time to someplace that doesn't have TV's that you might have wanted to go to or try
03:12 PM Tom_L: just a bunch of overpaid ppl butting heads
03:12 PM roycroft: it's a beautiful day here again
03:12 PM Tom_L: working on some cad files
03:13 PM CaptHindsight: not working today yet
03:13 PM Tom_L: we did get a short blast of snow but now it's gone
03:13 PM roycroft: i may be able to use my router table later on today
03:13 PM gloops: -10c heading for UK
03:13 PM CaptHindsight: 14F and blowing snow
03:13 PM roycroft: it's 17c here at the moment
03:13 PM roycroft: we'll break the record high for the day again
03:13 PM CaptHindsight: nice
03:14 PM CaptHindsight: until it's near record breaking highs every day
03:14 PM roycroft: ye
03:14 PM roycroft: s
03:14 PM roycroft: except it's raining in the mountains
03:14 PM gregcnc_: capt -4°F tonight
03:14 PM CaptHindsight: roller coaster weather here all winter
03:14 PM roycroft: and that's melting off what little snow pack we have
03:14 PM roycroft: it's going to be a tough summer
03:15 PM Tom_L: 15F, was 29 when i got up
03:15 PM CaptHindsight: looks like 20F at most all week
03:15 PM Tom_L: lovely
03:16 PM CaptHindsight: if we had a good dumping of snow than at least you could enjoy some winter sports
03:16 PM gregcnc_: more snow tmr night
03:16 PM Tom_L: and what would that be? shoveling walks??
03:17 PM CaptHindsight: ass freezing
03:17 PM Tom_L: although i did enjoy watching my neighbor try to get out of his drive one winter for probably atleast an hour
03:20 PM CaptHindsight: gregcnc_: was up in Milwaukee Yesterday...
03:21 PM gregcnc_: anything good going on?
03:21 PM CaptHindsight: snowed a few inches and all the drive back to the state line
03:21 PM CaptHindsight: Mitten fest, outdoor concert
03:22 PM CaptHindsight: it's like the snow was no authorized to land in IL, it just stopped yards before the line
03:22 PM gregcnc_: they were talking about snow, but i didn't check to see where it was
03:23 PM gregcnc_: it was 40F here at some point
03:23 PM CaptHindsight: yesterday was nice
03:23 PM laminae: Seems like a lot of people 'round here are east coasters
03:23 PM CaptHindsight: laminae: it's quite a mix
03:24 PM CaptHindsight: not many in Asia
03:24 PM CaptHindsight: or South America
03:24 PM laminae: All about the diversity
03:24 PM gloops: Aldi have recalled 38,000 packs of frozen veg after customer found half a rat in one
03:25 PM CaptHindsight: yah pay for the whole rat, ripoff
03:26 PM gloops: rat is good eating, so they say
03:27 PM gregcnc_: https://youtu.be/3oNfTwG5jgs?t=6s
03:27 PM MarcelineVQ: which they?
03:27 PM Tom_L: cats
03:27 PM gloops: rat is like chicken
03:27 PM Tom_L: of the alley kind
03:28 PM Tom_L: you can say that all you like....
03:28 PM CaptHindsight: popular in south asia
03:28 PM MarcelineVQ: If you've seen a non-pet rat up-close you'll lose your appetite
03:28 PM laminae: So i really like this guys concept for an alum bed but i feel like it would be a bitch to add/remove t nuts, anyone have a link to a build that would be more effective for that?
03:28 PM laminae: https://openbuilds.com/builds/c-beam-xl-with-aluminum-bed.4194/
03:29 PM MarcelineVQ: they are pretty hideous things, depending on your area
03:30 PM gloops: i think in the UK you are never more than 1 metre from a rat
03:30 PM gloops: on average, something like that
03:31 PM MarcelineVQ: the epithets that come to mind when hearing a phrase like that :>
03:31 PM gloops: Marcel sewer rats can be pretty mangey
03:31 PM CaptHindsight: laminae: what size bed? router or mill?
03:32 PM CaptHindsight: laminae: something like this? https://imagebin.ca/v/2apzmk7rpwvC
03:33 PM CaptHindsight: gregcnc_: 2-4" tomorrow
03:34 PM laminae: Router and i'd have to reference the build but approx 40"x20"
03:34 PM gregcnc_: my wife hates the fact that I work at home and she has to drive in this, daily i hear let's move to florida
03:34 PM laminae: And i like that but that looks mucho expensivo
03:34 PM CaptHindsight: then you get hot and humid all summer
03:35 PM laminae: i'd like to keep the total material cost under 200 for the bed
03:35 PM gregcnc_: she's like 73±0.5°F or uncomfortable
03:35 PM laminae: And i'm planning on using 1/2in hdpe for the spoiler unless i find a better option
03:36 PM CaptHindsight: gregcnc_: San Diego
03:36 PM gregcnc_: but california
03:36 PM MarcelineVQ: another amtrak went off
03:36 PM CaptHindsight: yeah, always trade off
03:36 PM CaptHindsight: MarcelineVQ: yeah we are averaging one per week now
03:36 PM gregcnc_: my cousin went to GA and is trying to convince us
03:37 PM gloops: http://www.ebay.co.uk/itm/Second-User-CNC-Router-Machine-Milling-Piranha-PJCM1313-1300mm-x-1300mm-Bed/292425073424?
03:37 PM CaptHindsight: I don't like humid
03:37 PM CaptHindsight: hot is ok
03:37 PM MarcelineVQ: GA is probably amazing if your blood is icewater
03:37 PM laminae: CaptHindsight: Replacing the mdf with rails and hdpe respectively
03:38 PM laminae: http://openbuildspartstore.com/openbuilds-c-beam-machine-xlarge/
03:38 PM gloops: buy this if you are electricity minded https://www.ebay.co.uk/itm/ANTIQUE-VICTORIAN-OLD-MEDICAL-ELECTRIC-SHOCK-MACHINE-QUACK-NERVOUS-DISEASE-CURE/401485914671?
03:38 PM gloops: (no pun intended)
03:39 PM CaptHindsight: antique quackery
03:40 PM gloops: wonder how many got zapped with that
03:41 PM CaptHindsight: https://i.ebayimg.com/images/g/0OwAAOSwQiFacitu/s-l1600.jpg
03:41 PM CaptHindsight: I forget how recent polymer insulation is
03:42 PM gloops: bakelite?
03:42 PM CaptHindsight: laminae: look for a deal on a used steel surface plate or ground plate
03:43 PM gloops: im having a wood surface on mine, i want to screw direct to it for holding
03:44 PM CaptHindsight: ground wooden plate? :)
03:44 PM gloops: mdf, cheap, disposable, fairly precise at the time of purchase
03:45 PM laminae: Well, i'm intending to do a substantial amount of aluminum and so i will have lubricant a lot
03:45 PM laminae: WHich is why i was planning on the hdpe spoiler
03:45 PM gloops: yes better with t slot for that
03:46 PM laminae: Guessing making a plate out of this isn't a great idea then?
03:46 PM laminae: http://openbuildspartstore.com/v-slot-20x80-linear-rail/
03:46 PM gloops: ive got a granite slab im going to use if i do any ally machining, ill stick some skirts round it
03:47 PM gloops: why not laminae?
03:47 PM CaptHindsight: it's not really that flat
03:47 PM laminae: Because it would be five separate peices so i would use brackets
03:47 PM CaptHindsight: maybe a few thou over a foot
03:48 PM gloops: near enough for a router
03:48 PM CaptHindsight: you could mount it to a rigid base and then machine it flatter
03:48 PM gloops: i would put some supports in ever 1300mm
03:48 PM laminae: Well, what if i mount it then machine my spoiler flat?
03:48 PM gloops: over
03:48 PM CaptHindsight: but it you don't need the accuracy then just used MDF or similar
03:48 PM laminae: Because it will still have the hdpe on top
03:49 PM laminae: my actual cutting area is 13" by 30"
03:49 PM gloops: hdpe strips or one sheet? just thinking a lot of access to the slots will be covered
03:50 PM CaptHindsight: https://www.ebay.com/itm/STEEL-PLATE-1-2-cut-to-your-size-up-to-24-X-42/320402686229
03:50 PM laminae: Solid hdpe with a some slots
03:51 PM laminae: Still leaves the question of how i'm going to secure my work
03:51 PM gloops: with rough and ready approach ill just throw a sheet on for cutting, blast some screws in the waste areas and press run
03:53 PM gloops: and retire immediately lol
03:56 PM laminae: I was thinking similar to that with 1/2in hdpe centered https://openbuilds.com/attachments/20170130_171126-jpg.21988/
03:58 PM gloops: its a nice surface to work on
03:59 PM laminae: looking at total cost, 130 bucks, but i don't want to cheap out if i'm going to lose performance on something for fifty bucks more
04:03 PM gloops: well, probably better with the stuff specified for surface applications
04:04 PM gloops: what motors did you decide to go with laminae?
04:05 PM laminae: 23s
04:05 PM laminae: haven't settled on a spindle
04:06 PM laminae: Went with the gecko drivers thorton suggested
04:06 PM gloops: most reccomend 1.5 - 2.2kw for ally
04:06 PM laminae: Going to hang tight on the board until the 7i76e is back in stock
04:06 PM laminae: I'm wanting a water cooled vfd but that's proving more complicated than i anticipated
04:08 PM gloops: water cooled spindle?
04:09 PM gloops: water cooled, air cooled, each have their own supporters who swear their system is better, both seem to work the same
04:09 PM laminae: As lame as it may be, sound is a big factor for me
04:10 PM laminae: I usually work until 2am and a lot of my projects take place after work
04:10 PM gloops: wont make any difference
04:10 PM gloops: its the cutting that makes the noise
04:10 PM laminae: Really? that was the largest claimed benefit of the water cooling
04:11 PM laminae: Screw the neighbors i suppose
04:11 PM laminae: Not really but y know
04:11 PM gloops: mine is air cooled i can have it on 24000 rpm, no louder than a hairdryer
04:11 PM gloops: start cutting - noise
04:12 PM CaptHindsight: neighbors also tend complain if you weld, especially if upstairs
04:12 PM gloops: its not noticeable with shallower cuts, when you start hogging material out its starts howling as with a router
04:13 PM laminae: I'm moving next year if all goes well and i've been looking at a big shop with a small house attached haha
04:14 PM gloops: 2am is that late at night where you are?
04:15 PM gloops: noise was a big factor for me, honestly with a spindle its not bad at all with normal cutting, you cant hear mine at the end of the drive
04:15 PM gloops: unless cutting hard
04:33 PM laminae: I live in portland oreogn man
04:33 PM laminae: Pretty dense population
04:38 PM gloops: lol
04:39 PM gloops: are your neighbours violent at all?
04:41 PM Deejay: gn8
04:44 PM laminae: Haha
04:44 PM laminae: They are actually really cool about all my projects
04:44 PM laminae: But i've made a veyr concious effort to not be a complete douche
04:45 PM laminae: So, in the past i've done a lot of foam cutting using laser cutter but i've always want to be able to control depth, you guys toyed with that at all?
04:45 PM laminae: Specifically for tool boxes
04:46 PM gloops: not me, there some laser users in here, at times
04:47 PM laminae: Oh i emant using a router
04:47 PM laminae: meant*
04:48 PM laminae: I whipped this ut using the laser rutter and i modeled all the leads and printed flexible clips using tpu https://imgur.com/a/kA0kU
04:48 PM laminae: But i would LOVE to mace the brackets fit perfectly by milling them
04:48 PM gloops: i dont think it would be a problem really unless you are hammering it with a big spindle, you can hear it but its not like it would wake anyone up or annoy them, unless they are right beside the room and its running all day every day
04:49 PM laminae: Really, most of my projects are small, the number one thing i neet is brackets and build plate carriers
04:49 PM gloops: very nice yeah
04:49 PM laminae: Maybe the odd effector plate
04:52 PM laminae: Thanks, i don't know what i'm doing in the router/mill arena, i'm a 3d printing laser cutting guy but the irc community has be quite helpfull
04:52 PM gloops: im going to build a little furnace at the back of the garage for melting ally
04:54 PM laminae: I did a small experiment urethane casting a 3d print and have thought it would be so awesome to do lost pla casting
04:55 PM laminae: I've seen people do some amazing 3d printing casting
04:55 PM gloops: some nice stuff in the facebook groups gets posted
04:56 PM gloops: i only want to make blanks a few inches square, ill just make a steel mold, well several
04:56 PM gloops: anywa bedtime here
04:56 PM laminae: I definitely don't have the facilities to set up a crucible here
05:03 PM Crom_: dambit! shaft on the 100mm rotary tables is NOT 8mm
05:37 PM enleth: suppose you need to cut a pretty big aluminum casting into pieces that are easier to store and move around. "pretty big" is about 500kg with wall thickness ranging from 20 to 30mm, up to 50-60mm on webbing
05:37 PM enleth: the best I can come up is a reciprocating saw with a good metal blade
05:38 PM enleth: any better ideas?
05:39 PM enleth: I don't have access to any kind of hydraulic shears that could stand up to this
05:39 PM SpeedEvil: Or gas axe
05:40 PM CaptHindsight: https://www.youtube.com/watch?v=O2Th4oSaq-E might be handy
05:40 PM enleth: does that work well on aluminum?
05:41 PM enleth: CaptHindsight: the casting is several times bigger than the biggest bandsaw I have
05:41 PM enleth: that has to be done with something handheld
05:45 PM CaptHindsight: if ugly isn't a concern the only other hand held might be a circular saw with a non-ferrous blade
05:46 PM CaptHindsight: and that will only go maybe 5-10cm deep
05:47 PM CaptHindsight: two man tree saw with blade for aluminum
05:48 PM CaptHindsight: https://i.ytimg.com/vi/aTrxkPaTW8M/hqdefault.jpg
05:48 PM SpeedEvil: Chisel can also work
05:48 PM SpeedEvil: very coarse toothed reciprocating saw is probably reasonable
05:48 PM SpeedEvil: and are hte webbings 20mm deep?
05:49 PM SpeedEvil: that is - you can cut teh webbing from the inside perhaps
05:52 PM CaptHindsight: thermite
05:52 PM CaptHindsight: shape charge
05:52 PM SpeedEvil: build a suitable CNC frame to hold a dremel.
05:55 PM CaptHindsight: https://theawesomer.com/inkjet-printing-thermite/459833/
05:55 PM CaptHindsight: 10,000 x cuts
05:56 PM enleth: SpeedEvil: the webbings are additional 20-50mm on top of the wall thickness
05:56 PM enleth: this is a side casting of a printing press
05:56 PM enleth: it's built like a tank
05:57 PM SpeedEvil: enleth: yes, but I mean what are the thicknesses of the webs
05:57 PM enleth: about 20mm, yes
05:57 PM SpeedEvil: so you can maybe go at them from the other side
05:57 PM SpeedEvil: ratehr than needing to cut 60mm
05:57 PM enleth: funny thing is, if I had the KUKA robot mounted to the floor already, I'd try to mount some kind of cutting tool to it and program it to just go slowly overnight
05:57 PM enleth: but I don't
05:58 PM enleth: a well geared down, slow turning circular blade is probably the most efficient way to cut something like this that doesn't involve a huge bandsaw
05:59 PM SpeedEvil: Fast turning is more entertaining
05:59 PM enleth: but I imagine the forces acting on such a blade, and in turn the whole saw, might be somewhat beyond what a human can handle and keep from wandering off
05:59 PM enleth: the robot wouldn't have any trouble with that, though
05:59 PM SpeedEvil: If the wall thickness is just 20mm, and it was here, I would start with my small circular saw
06:00 PM SpeedEvil: https://www.amazon.co.uk/gp/product/B00UAKY060
06:01 PM SpeedEvil: But a jigsaw would work fine probably
06:02 PM enleth: won't a handheld woodworking saw just stall and burn? I was under impression that metal blades for regular circular saws are intended to cut sheet metal and thin plates
06:02 PM enleth: ah, that one you linked is worm drive and probably well geared down
06:03 PM SpeedEvil: It's pretty fast
06:03 PM SpeedEvil: But, if you go slow enough to not bog the motor down, with a coarse blade, it works fine for aluminium
06:04 PM SpeedEvil: If you can clamp a fence to it, it's easy
06:04 PM Loetmichel: enleth: i have cut 40mm thick aluminium sheets wiet a regular circular saw
06:04 PM Loetmichel: you only need special blades with negative rake.
06:04 PM Loetmichel: AND good eye and ear protection ;)
06:04 PM enleth: Loetmichel: regular as in motor sticking out to the side parallel to blade axis?
06:05 PM Loetmichel: enleth: yes, regular as highspeed wood tool, not "cold saw" made for metal
06:05 PM SpeedEvil: steel is tougher.
06:05 PM SpeedEvil: But you can use most all tools for wood in aluminium - somewhat.
06:06 PM Loetmichel: you get literally SPRAYED in hot aluminium swarf though and you have to move the cut pretty slowly
06:06 PM CaptHindsight: robot arm with wire blade and few KG weight
06:06 PM Loetmichel: or you'll choke the saw motor
06:09 PM CaptHindsight: https://www.4mdmedical.com/catalog/product/view/id/346203
06:09 PM SpeedEvil: Loetmichel: It goes better if you knock off most of the teeth :)
06:09 PM CaptHindsight: get it to reciprocate
06:09 PM Loetmichel: SpeedEvil: that WAS a negative rake aluminium blade
06:10 PM Loetmichel: it was made for cutting alu with a wood saw
06:10 PM Loetmichel: it WASNT meant for 40mm THICK alu though ;)
06:10 PM SpeedEvil: I think I only tried 12mm or so with a circular saw
06:10 PM SpeedEvil: and regular wood.
06:10 PM SpeedEvil: Worked OKish
06:11 PM enleth: eh, it would be nice to own a really well geared worm drive circular saw, but they're extremely hard to get around here
06:11 PM CaptHindsight: I use a circular saw with non-ferrous blade for aluminum extrusions 100mm thick
06:12 PM Loetmichel: CaptHindsight: those extrusions are not massive though
06:12 PM Loetmichel: they are about 50% to 70% air
06:12 PM Loetmichel: = room where the swarf can escape
06:12 PM enleth: much less wood in construction means that circular saws in general are less popular than in the US, there's absolutely nothing available that's built like a Skil Saw
06:12 PM CaptHindsight: 25mm plate no problem
06:13 PM Loetmichel: 25mm is a lot easier, yes
06:13 PM enleth: so I guess other types of handheld circular saws also see much less use and the manufacturers are less inclined to market them here
06:14 PM CaptHindsight: bandsaw is faster but I'd use it on bar 100thick
06:15 PM Loetmichel: enleth: in germany those worm drive slow revving saws are called "kaltkreissäge" meaning "cold circular saw" and a re usually in a cutoff-config rather than handheld
06:15 PM Loetmichel: https://www.contorion.de/elektrowerkzeug/stuermer-metallkreissaege-mts-356-2200w-230v-1300u-min-3660124?aid=167005904544
06:15 PM Loetmichel: like this one
06:16 PM enleth: this actually looks like a sidewinder configuration, not a worm drive
06:16 PM Loetmichel: it is geared down though
06:17 PM Loetmichel: you mean this config?
06:17 PM Loetmichel: https://www.holz-metall.info/shop1/artikel6992.htm
06:38 PM enleth: Loetmichel: yes
06:38 PM enleth: this looks absolutely beefy
06:38 PM enleth: and is priced as such
06:42 PM enleth: looks like it turns at something like 1.6rpm
06:42 PM enleth: no, wait
06:42 PM enleth: 40rpm
06:43 PM enleth: (38m/min linear blade speed, almost 1m of blade circumference)
07:17 PM Cromaglious_: 3 axis working now
07:17 PM Cromaglious_: https://www.youtube.com/watch?v=NFf6aLNpI2s
07:17 PM Cromaglious_: 480in/m
07:21 PM Cromaglious_: from 2:10 it's on a tripod
07:22 PM Cromaglious_: 6 minute mark is the hammer work
09:56 PM jesseg: haha can you feel the resistance: http://xomf.com/gcqsn
10:01 PM evilroot: Any ideas on cleaning old linear rails caked with hardened grease?
10:01 PM evilroot: I was thinking just dunk them in carb cleaner
10:19 PM jesseg: evilroot, Try course steel wool (or any that you have) and diesel fuel or kerosene
10:19 PM jesseg: and elbow grease
10:20 PM jesseg: I found highly volatile solvents just evaporated too fast to really dissolve that stuff
10:20 PM evilroot: Well carb dip is meant for it to sit and soak
10:21 PM jesseg: oh OK that just might do it then
10:21 PM evilroot: Wouldn't steel wool damage the rails and cause rust?
10:21 PM jesseg: and if you have it, no harm in trying :D
10:21 PM MarcelineVQ: you can use synthetic wool too, often referred ot as scotchbright, which has various 'courseness' like wool
10:22 PM evilroot: Naw I'm going to buy it. The whole idea is that it dissolves oil and grease and carbon
10:22 PM evilroot: They're THK SR-W series rails
10:22 PM MarcelineVQ: and it'll scuff stuff pretty good despite how it looks so one should be careful
10:22 PM evilroot: Figure I can use it on the bearing blocks too
10:30 PM evilroot: Lukcily despite being almost 30 years old there's hardly any corrosion/pitting. THK makes nice stuff
10:37 PM jesseg: yeah scotch bright has an abrasive. That's why I like steel wool - it's harder than lots of stuff but not harder than a hardened way
10:51 PM jesseg: Hmm, I'm rebuilding an old rechargeable flashlight - replacing nicad/tungsten with (lots of) lithium ion and LED.. But the charger is going to take 100 hours to charge it now. I guess that's too long.
10:54 PM Cromaglious_: https://www.youtube.com/watch?v=NFf6aLNpI2s&t=130
10:54 PM Cromaglious_: hammer work https://www.youtube.com/watch?v=NFf6aLNpI2s&t=360
10:55 PM jesseg: why you pound the poor thing?
10:56 PM Cromaglious_: if you look at the bottom of the Z screw before I pound it... it deflects, less so after I pound on it
10:56 PM jesseg: ahh
10:57 PM Cromaglious_: now I have to retram the column though
11:28 PM Cromaglious_: just ordered 2 dell wyse 7020 quad core passmark 1920 speedrating thin clients 32GB SATA 4GB RAM
11:38 PM CaptHindsight: https://www.sphero.com/
11:38 PM CaptHindsight: $130 for the larger one
11:39 PM Cromaglious_: come on people! give me an aAtom C2750 mini-itx with a parallel header!
11:39 PM Cromaglious_: 20w octo core chip...
11:45 PM CaptHindsight: 8 core atom?
11:47 PM CaptHindsight: https://ark.intel.com/products/77987/Intel-Atom-Processor-C2750-4M-Cache-2_40-GHz
11:52 PM CaptHindsight: Cromaglious_ : probably have to use a PCIe LPT card
11:54 PM enleth: Cromaglious_: it's possible that Atoms no longer have a parallel port controller circuitry